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Publication numberCN106572896 A
Publication typeApplication
Application numberCN 201580039139
PCT numberPCT/IB2015/054949
Publication date19 Apr 2017
Filing date1 Jul 2015
Priority date17 Jul 2014
Also published asEP3169269A1, US9693839, US20160015489, US20170252132, WO2016009294A1
Publication number201580039139.X, CN 106572896 A, CN 106572896A, CN 201580039139, CN-A-106572896, CN106572896 A, CN106572896A, CN201580039139, CN201580039139.X, PCT/2015/54949, PCT/IB/15/054949, PCT/IB/15/54949, PCT/IB/2015/054949, PCT/IB/2015/54949, PCT/IB15/054949, PCT/IB15/54949, PCT/IB15054949, PCT/IB1554949, PCT/IB2015/054949, PCT/IB2015/54949, PCT/IB2015054949, PCT/IB201554949
Inventors优素福阿缇亚, 塔勒维科尔
Applicant阿莱恩技术有限公司
Export CitationBiBTeX, EndNote, RefMan
External Links: SIPO, Espacenet
Probe head and apparatus for intraoral confocal imaging
CN 106572896 A
Abstract
A probe head for dental confocal imaging, comprises a light-guiding part for guiding a light beam towards a teeth portion, the light-guiding part having an entrance face through which the light beam enters the light-guiding part and an exit face through which the light beam exits the light-guiding part, wherein the light-guiding part is configured, in case of a linearly polarized light beam having two polarization components being perpendicular to each other, to change polarization of the linearly polarized light beam on its path through the light-guiding part in such a way that one of the two polarization components, compared to the other of the two polarization components, is retarded by an odd multiple of a quarter of a wavelength of the light beam along the path from the entrance face to the exit face.
Claims(19)  translated from Chinese
1. 一种用于牙科共焦成像的探头,所述探头包括: 导光部,该导光部朝着牙齿部分引导具有波长的光束,所述导光部具有接收光的入射面和出射光的出射面,光路从所述入射面和所述出射面延伸,其中,所述导光部被构造为: 沿着从所述入射面向所述出射面延伸的所述光路,使第一偏振分量相对于第二偏振分量延迟所述波长的四分之一的奇数倍。 A dental probe for confocal imaging, said probe comprising: a light guide portion, the tooth portion of the light guide portion toward the light beam having a wavelength in the guide, the light guide portion having a light incident surface receiving light and outgoing light the exit surface, the optical path extending from the incident surface and the exit surface, wherein said light guide portion is configured to: along the exit plane out of the optical path extending from the incident face, the first polarization component with respect to an odd multiple of said second polarization component delay of a quarter wavelength.
2. 根据权利要求1所述的探头,其中,所述导光部包括透明本体,并且其中,所述光束包括线偏振光束,所述线偏振光束包括所述第一偏振分量和所述第二偏振分量,其中,所述第一偏振分量与所述第二偏振分量彼此垂直。 2. The probe according to claim 1, wherein the light guide comprises a transparent body portion, and wherein said light beam comprises a beam of linearly polarized light, the linearly polarized beam comprising said first and said second polarization component polarization component, wherein the first polarization component and the second polarization component perpendicular to each other.
3. 根据权利要求1所述的探头,其中,所述导光部包括一体式本体。 The probe according to claim 1, wherein said light guide portion comprises an integral body.
4. 根据权利要求1所述的探头,其中,所述导光部包括多个侧壁,并且所述侧壁中的一个以上的侧壁包括延迟涂层,使得沿着从所述入射面向所述出射面延伸的所述光路,所述第一偏振分量相对于所述第二偏振分量的总延迟包括所述波长的四分之一的奇数倍。 The probe according to claim 1, wherein said light guide portion comprises a plurality of side walls, said side walls and at least one side wall comprises a delay coating, such that the incident direction from the face the said exit surface extending the optical path, said first polarization component with respect to the total delay includes an odd multiple of a quarter of the wavelength of the second polarized component.
5. 根据权利要求1所述的探头,其中,所述导光部由所述侧壁界定,并且所述导光部被构造为使得通过所述入射面而进入的光束以全内反射的方式由所述导光部的至少一个所述侧壁反射。 The embodiment of the probe according to claim 1, wherein said light guide portion defined by the side wall, and the light guide portion is configured such that enters through the incident surface of the light beam reflected in total internal reflected by said at least one sidewall of the light guide portion.
6. 根据权利要求1所述的探头,其中,所述导光部包括上侧壁、下侧壁和端侧壁,所述上侧壁与所述入射面邻接,所述上侧壁被布置为与所述入射面成锐角,所述下侧壁与所述入射面邻接,所述下侧壁被布置为与所述入射面成钝角,所述端侧壁与所述上侧壁和/或所述下侧壁邻接,所述端侧壁被布置为与所述入射面和/或所述出射面成锐角。 6. A probe according to claim 1, wherein the light guiding portion includes an upper sidewall and lower side walls and end side walls, the upper side wall adjacent to the incident surface, said side wall being disposed on and the incident surface is an acute angle with the lower side wall adjacent to the incident surface, the lower side walls are arranged at an obtuse angle to the incident surface, the sidewall and the upper ends of the side walls and / or the adjacent lower side wall, said side walls are disposed with the end of the incident surface and / or the exit surface at an acute angle.
7. 根据权利要求6所述的探头,其中,所述端侧壁包括镜面。 7. A probe according to claim 6, wherein said side wall comprises a side mirror.
8. 根据权利要求6所述的探头,其中,在所述入射面与所述下侧壁之间延伸的角度在90和125之间的范围内。 8. The probe according to claim 6, wherein the angle between the incident surface and the lower side wall extends in a range between 90 and 125 .
9. 一种用于牙科共焦成像的设备,所述设备包括: 照明模块,该照明模块用于产生光束阵列; 光学系统,该光学系统用于所述光束阵列的共焦聚焦;以及根据权利要求1所述的探头, 其中,所述照明模块、所述光学系统和所述探头被布置为使得来自所述照明模块的所述光束阵列穿过所述光学系统、经由所述入射面而进入所述导光部、并且经由所述出射面而从所述导光部出射。 A dental apparatus for confocal imaging, said apparatus comprising: a lighting module, means for generating a light beam of the illumination array; optical system, the optical system for focusing the light beam confocal array; and claimed the probe claim 1, wherein said illumination module, said optical system and said probe are arranged such that the array of light beams from the illumination optical system passes through the module, enters via the incident surface the light guide portion, and is emitted from the light guide through the exit surface section.
10. 根据权利要求9所述的设备,其中,所述导光部由所述侧壁界定,并且所述导光部被布置为使得通过所述入射面而进入所述导光部的每个光束都在通过所述出射面而出射之前,在所述侧壁处反射奇数次,所述奇数次包括三次或五次。 10. The apparatus according to claim 9, wherein said light guide portion defined by the side wall, and the light guide portion is arranged such that the incident surface by the light guide portion into each before passing through the light beam in the exit surface is emitted, reflected at said side of odd number, said odd comprising three or five.
11. 根据权利要求9所述的设备,其中,所述照明模块包括单个的光发射器。 11. The apparatus of claim 9, wherein the lighting module comprises a single light emitter.
12. 根据权利要求9所述的设备,其中,所述照明模块包括多个光发射器。 12. The apparatus according to claim 9, wherein the illumination module comprises a plurality of light emitters.
13. 根据权利要求9所述的设备,还包括用于使光束线偏振的偏振器,其中,沿着所述照明模块与所述探头之间以及所述照明模块与所述光学系统之间的光路,布置所述偏振器。 13. The apparatus according to claim 9, further comprising a linear polarizer for polarizing the light beam, wherein, along said illumination module between said probe and said illumination module and said optical system light path, the polarizer is disposed.
14. 根据权利要求9所述的设备,还包括分束器,该分束器沿着所述照明模块与所述光学系统之间的光路布置,使得来自所述照明模块的光束阵列穿过所述分束器,并且从所述光学模块返回的光束阵列被反射。 14. The apparatus according to claim 9, further comprising a beam splitter, the beam splitter disposed along the optical path between the module and the illumination optical system, such that the light beam from the array through the lighting module said beamsplitter, and is reflected from the array of optical beam returned by the module.
15. 根据权利要求9所述的设备,还包括用于检测光束阵列的检测器。 15. The apparatus according to claim 9, further comprising a detector for detecting an array of beams.
16. 根据权利要求9所述的设备,还包括用于移动所述光学系统的焦平面的焦点移动机构。 16. The apparatus according to claim 9, further comprising a focus moving means for moving the focal plane of the optical system.
17. 根据权利要求16所述的设备,其中,所述焦点移动机构被构造为沿着光轴而移动所述光学系统的一个以上的透镜。 17. Apparatus according to claim 16, wherein the focus movement mechanism is configured to move along the optical axis of the optical system one or more lenses.
18. 根据权利要求1所述的设备,其中,所述导光部的表面的角度被布置为提供所述延迟的第一部分,并且一个以上的所述表面的一个以上的涂层包括被构造为提供所述延迟的第二部分的多个层,其中,与所述第二部分组合的所述第一部分提供了所述入射面与所述出射面之间的组合后的总相对延迟,该组合后的总相对延迟包括所述波长的四分之一的奇整数倍。 18. The apparatus according to claim 1, wherein the angle of the surface of the light guide portion is arranged to provide a first portion of the delay, and said at least one coating comprises at least one surface is configured to providing a second layer of said plurality of delay parts, wherein the second portion providing a first portion combined with the incident surface of the total of the combination of the relative delay between the emission surface, the composition the total relative delays of a quarter of the wavelength comprises an odd integer multiple.
19. 根据权利要求18所述的设备,其中,第一分量包括所述波长的四分之一的第一非整数倍,并且第二分量包括所述波长的四分之一的第二非整数倍,并且其中,一个以上的涂层包括多个层,该多个层包括低折射率层、高折射率层以及中间折射率层。 19. The apparatus according to claim 18, wherein the first component comprises a first non-integer multiple of one quarter of the wavelength, and the second component comprises a second non-integer quarter of the wavelength times, and wherein at least one coating comprises multiple layers, the layers comprising a plurality of low refractive index layer, high refractive index layer and the intermediate refractive index layer.
Description  translated from Chinese
用于口内共焦成像的探头和设备 Probe and apparatus for confocal imaging of intraoral

技术领域 FIELD

[0001] 本公开涉及一种用于口内共焦成像的探头和包括该探头的设备,特别有助于测绘牙齿。 [0001] The present disclosure relates to an intra-oral probe for confocal imaging device comprising the probe and, in particular, helps mapping teeth.

背景技术 Background technique

[0002] 在畸齿矫正学和假牙修复学领域,已知不同的方法来确定患者口中的当前牙齿的表面结构。 [0002] In Orthodontics and denture prosthodontics art, different methods are known to determine the current of the tooth surface of a patient's mouth. 上述方法中的一种方法涉及采用患者的齿列的印模。 One method involves the use of the above methods the patient dentition impression. 利用该印模制造表示(阳型)物理牙齿模型的石膏模型。 Using the stamp manufacturing plaster model represents (male) physical dental model. 该物理牙齿模型而后可以用于随后的治疗计划。 The physical dental model can then be used for subsequent treatment plan.

[0003] 如果要采用CAD (计算机辅助设计)技术和/或CAM (计算机辅助制造)技术,则可以通过扫描获得与牙齿对应的数字数据集。 [0003] If you want to use CAD (computer aided design) techniques and / or CAM (computer aided manufacturing) technology, digital data set can be obtained by scanning with the corresponding teeth. 例如,可以使用X射线、计算机断层成像、磁共振成像或者激光扫描设备来扫描或成像石膏模形式的(阳型)物理牙齿模型或印模形式的(阴型)物理牙齿模型。 For example, an X-ray, computed tomography, magnetic resonance imaging or laser scanning device to scan or (male) or impression in the form of a physical model of the teeth (female) forming a physical dental model of the cast form. 利用如此获得的图像数据,可以建立牙齿或其一部分的计算机模型。 Using the image data thus obtained, or a portion thereof may be established dental computer model. 然而,这种方法和设备可能比理想情况耗费时间且更昂贵。 However, this method and apparatus may be time-consuming and expensive than the ideal case.

[0004] 作为替代,可以直接对患者口中的牙齿成像。 [0004] Alternatively, the teeth may be directly imaged on the patient's mouth. 为此目的,已知不同的成像设备。 For this purpose, various known image forming apparatus.

[0005] 利用具有感应面的探头进行非接触成像的现有设备至少在某些方面不太理想。 [0005] using a probe having a sensing surface of the non-contact image forming apparatus of the prior least in some aspects less than ideal. 现有的探头装置要比理想的大一些,并且可能具有大的口内前端,这可能使得现有装置至少对于某些情况下的使用不方便。 Conventional probe device larger than desirable, and may have a wide mouth distal end, which may make it inconvenient to conventional means for use in at least some cases. 虽然可以使用通过聚焦光学器件的入射光束阵列,但是这种装置的大于理想探头的头部会导致对患者口腔的测量不理想。 Although the incident beam may be used by a focusing optics array, but greater than the head of the probe over such a device leads to the measurement of the patient's mouth is not ideal. 并且,依赖于光束以在结构上生成照明点的现有装置和沿光路传播的返回光线的强度对于使用和维护而言可能有些麻烦,并且制造成本可能比理想情况稍高。 And, depending on the existing means for generating a light beam illumination spot on the structure and the intensity of return light propagating along the optical path for the purposes of use and maintenance can be cumbersome, and the manufacturing cost may be slightly higher than the ideal case.

[0006] 虽然在现有装置中已经使用了四分之一波片(QWPs),但是现有的QWPs在一些情况下可能提供不够理想的结果。 [0006] Although the use of a quarter wave plate (QWPs) in the conventional apparatus, it is possible to provide a conventional QWPs less desirable results in some cases. 例如,一次性的QWPs可能具有不够理想的质量,并且可能比理想的更少地使用。 For example, disposable QWPs may have less than ideal quality, and may use less than desirable. 虽然已经提出了固定的QWPs,但是固定的QWPs的对准和可靠性可能不够理想。 Although fixed QWPs have been proposed, but fixed QWPs alignment and reliability may not be desirable. 而且,QWPs的使用可能与不够理想的数值孔径和精度相关,并且可能不够理想地适用于与远心测量系统组合。 Further, QWPs use may be associated with less than ideal accuracy and numerical aperture, and may not be ideally suited for combination with telecentric measuring system. 而且,QWPs的使用能够提供例如与对污染的不理想控制相关的附加的光学部件。 Further, QWPs are capable of providing additional optical components associated with the control of undesirable contamination for example.

[0007] 虽然已经提出了使用三角测量法的三维(3D)数据采集,但是这样的装置可能不如理想的紧凑,并且可能有些难以放置在患者的口中。 [0007] Although the data acquisition has been proposed using triangulation dimensional (3D), but such devices may not be desirable to compact, and may be somewhat difficult to place in a patient's mouth. 并且,这样的装置可能需要对准,并且至少在一些情况下可能不如理想的精确和可靠。 Further, such devices may need to be aligned, and at least may not be as accurate and reliable desirable in some cases.

[0008] 鉴于以上情况,需要用于测量诸如口内腔这样的表面的改进的方法和设备。 [0008] In view of the above, a need for such a method and apparatus for measuring such surfaces an improved lumen port. 理想地,这样的方法和设备将克服现有方法和设备的至少一些缺陷,并且将更精确、可靠、紧凑, 更容易用于患者的口腔,并且比现有装置更便宜。 Ideally, such a method and apparatus to overcome at least some of the methods and apparatus of defects, and more accurate, reliable, compact, easier for the patient's mouth, and cheaper than existing devices.

发明内容 SUMMARY

[0009] 根据实施例,设置了用于牙科共焦成像的探头,该探头包括导光部,导光部用于朝着牙齿部分引导光束,该导光部具有:入射面,光束通过该入射面而进入导光部;以及出射面,光束通过该出射面而离开导光部。 [0009] According to an embodiment, provided for a dental confocal imaging probe, which probe comprises a light guide portion, light guide portion for guiding the light beam towards a portion of the tooth, the light guide portion having: an incident surface through which incident light into the surface of the light guide portion; and an exit surface, the light beam exits the light guide through the exit surface section. 导光部可以被构造为提供沿着从入射面到出射面的路径的、偏振分量的包括光束的波长的四分之一的奇数倍的相对延迟。 The light guide portion may be configured to provide a direction from the entrance surface to the exit surface of the path, the polarization component relative delay comprises a quarter wavelength of a light beam odd multiple. 在多个实施例中,具有彼此垂直的两个偏振分量的线偏振光束以如下方式提供线偏振光束在其通过导光部的路径上的偏振的改变:沿着从入射面到出射面的路径,两个偏振分量中的一个偏振分量相对于两个偏振分量中的另一个偏振分量被延迟了光束的波长的四分之一的奇数倍。 In various embodiments, the line having two mutually perpendicular polarization components polarized beam to provide a linearly polarized beam in such a manner that by changing the polarization on the path of the light guide portion: along the path from the incident surface to the exit surface , one polarization component of two polarization components polarized component relative to the other two polarization components is delayed by an odd multiple of a quarter of the wavelength of the light beam. 能够以多种方式中的一个以上的方式布置且/或构造探头的反射表面,从而提供波长的四分之一的奇整数倍的相对延迟。 It can be arranged and / or configuration of the reflective surface of the probe to one or more of a variety of ways, thereby providing a quarter wavelength relative delay of an odd integer multiple. 在多个实施例中,反射表面的角度被布置为提供延迟。 In various embodiments, the angle of the reflecting surface is arranged to provide a delay. 作为替代或者组合,涂层能够被设置在一个以上的表面上,以提供延迟。 Alternatively or in combination, the coating can be provided on more than one surface, to provide delay. 在多个实施例中,表面的角度提供了延迟的第一部分,并且一个以上的涂层提供了延迟的第二部分,并且与第二部分组合的第一部分提供了包含波长的四分之一的奇整数倍的、入射面与反射面之间的组合后的总相对延迟。 In various embodiments, the surface angle provides a first delay portion, and one or more coating provides a delay of the second portion, and provides a quarter wavelength and comprising a first portion of the second portion of the combined an odd integer multiple of the total composition between the incident surface and the reflecting surface relative delay. 在多个实施例中,当利用由其它表面处的反射所引起的现有的延迟补充时,在探头的前端部处的反射涂层能够提供全部的1/4波长的延迟。 In various embodiments, when using the conventional delay supplemented by the reflective surface of the other due to the reflective coating at the front end of the probe to provide all of the 1/4 wavelength retardation. 涂层可以包括具有低折射率层、高折射率层以及中间折射率层的多个层。 The coating may comprise a low refractive index layer, high refractive index layer and the intermediate refractive index layer a plurality of layers. 在多个实施例中,多个层包括多个低折射率层、多个高折射率层以及多个中间折射率层。 In various embodiments, the plurality of layers comprises a plurality of low refractive index layer, a plurality of high refractive index layer and a plurality of intermediate refractive index layer. 包括四分之一波长的奇数倍的延迟具有如下优势效果:提供了已经相移线偏振光的半个波长以及相应90度的返回光,为了提高测量设备的能量效率,能够利用偏振光束分束器来使用该线偏振光。 Comprising an odd multiple of quarter wavelength delay has the following advantageous effects: Providing phase shift has a half wavelength of the linearly polarized light and the return light corresponding to 90 degrees in order to improve the energy efficiency of measuring apparatus capable of utilizing polarization beam splitter the linearly polarized light is used.

[0010] 通过阅读说明书、权利要求以及附图,本发明的其它目的和特征将变得清晰。 [0010] By reading the specification, claims and drawings, other objects and features of the invention will become apparent.

[0011] 援引并入 [0011] INCORPORATION BY REFERENCE

[0012] 本说明书中提及的所有出版物、专利和专利申请通过引用并入本文,其程度如同每个单独的出版物、专利或专利申请被具体地和单独地指明为通过引用而并入。 [0012] All publications, patents and patent applications mentioned in this specification are incorporated by reference herein to the same extent as if each individual publication, patent or patent application was specifically and individually indicated to be incorporated by reference .

附图说明 BRIEF DESCRIPTION

[0013] 在所附权利要求中具体阐述本发明的新颖特征。 [0013] The novel features of the present invention is set forth with particularity in the appended claims. 通过参考以下阐述运用了本发明的原理的说明性实施例的详细描述,将获得对本发明的特征和优势效果的更好理解,并且所述实施例的附图为: BRIEF detailed description set forth below with reference to use of the principles of the invention an illustrative embodiment, will get a better understanding of the features and advantages of the effects of the present invention, and the embodiment is:

[00M]图1示出了根据多个实施例的共焦成像设备的示意图; [00M] FIG. 1 shows a schematic diagram of a confocal imaging apparatus according to various embodiments;

[0015] 图2示出了根据多个实施例的被示意性地图示的探头的顶视图; [0015] FIG. 2 shows a top view of a probe is illustrated schematically a plurality of embodiments;

[0016] 图3示出了根据多个实施例的被示意性地图示的探头的入射面的平面图; [0016] FIG. 3 shows a plan view of the incident surface is schematically illustrated embodiment of the probe according to various embodiments;

[0017] 图4示出了根据多个实施例的通过图2中的线AA的纵截面图;并且 [0017] FIG. 4 shows a longitudinal sectional view along line AA in FIG. 2 by a plurality of embodiments according to the embodiment; and

[0018] 图5示出了根据多个实施例的通过被示意性地图示的探头的纵截面图。 [0018] FIG. 5 shows a longitudinal sectional view through a plurality of embodiments are schematically illustrated probe.

具体实施方式 detailed description

[0019] 本文公开的方法和设备能够以许多方式中的一种或多种而被组合,并且非常适合于与表面拓扑结构相关的许多装置组合,诸如组织表面(例如口腔表面)的测量。 [0019] The methods and apparatus disclosed herein can be combined in many ways one or more, and is very suitable for a combination of means associated with a number of surface topology, such as a tissue surface measurement (e.g. the oral surface). 组织表面可以包括例如口部的一个以上的牙齿的表面。 Tissue surface may comprise one or more surfaces of the teeth, for example, the mouth portion. 被测量的表面能够由诸如正牙医生和牙医这样的卫生保健提供者使用。 Surface to be measured can be provided by a health care, such as dentists and orthodontists to use such.

[0020] 本文所使用的"和/或"包括替代元件和元件的组合。 [0020] Alternatively comprising a combination of elements and elements as used herein, "and / or." 例如,A和/或B包括单独的A、 单独的B以及A和B的组合。 For example, A and / or B include a separate A, B alone and a combination of A and B.

[0021] 本文所使用的lambda ("λ")表示光束的光的波长。 [0021] As used herein, lambda ( "λ") represents the wavelength of the light beam.

[0022] 在多个实施例中,线偏振的光束(具有彼此垂直的两个偏振分量)可以沿着其从导光部的入射面至导光部的出射面的路径经受偏振的变化。 [0022] embodiment, the linearly polarized light beam (having two polarization components perpendicular to each other) may be subject to change in the polarization from the incident surface along which the light guide portion to the exit portion of the light guide path in a plurality of embodiments. QWP也可以改变偏振。 QWP polarization may be changed. 由于诸如减小的尺寸、较少系统元件以及降低的成本这样的额外的原因,利用探头自身提供偏振变化能够是有益的。 Due to such a reduced size, fewer additional elements and the reasons for such a system cost reduction by providing a polarization change of the probe itself can be beneficial. 例如,波长的四分之一的奇整数倍的延迟可以对应于V2的奇数倍的相移。 For example, an odd quarter wavelength delay may correspond to an integer multiple of an odd multiple of the V2 phase shift. [0023]导光部可以被配置为使得光束在入射面处的线偏振被改变为在出射面处的椭圆偏振或者圆形偏振中的一者以上。 [0023] The light guide portion may be configured such that the polarization of the beam is changed as above in the exit plane of an elliptically polarized or circularly polarized in one of the lines at the incident surface.

[0024] 在多个实施例中,探头提供了包括四分之一波长的奇数倍的相位延迟,并且能够通过在系统中使用线偏振光,而以与四分之一波片相似的方式使用该探头。 [0024] embodiment, the probe is provided comprising an odd multiple of a quarter wavelength phase retardation, and linearly polarized light can be used by the system in a plurality of embodiments, and with the quarter-wave plate in a similar manner using the probe. 经过探头的线偏振的相位被延迟了波长的四分之一,并且从而被圆偏振。 After the probe was linearly polarized phase delayed by a quarter wavelength, and is thus circularly polarized. 当从诸如牙齿这样的对象反射回来并且在相反方向上经过探头时,产生另外的四分之一波长的延迟,并且偏振为线偏振, 并且相对于原始偏振为90度。 When reflected back from an object such as a tooth and through the probe in the opposite direction, generate additional quarter-wavelength retardation, and the polarization is linear polarization with respect to the original polarization is 90 degrees. 通过使用偏振分束器,能够充分地提高系统的光功率传输效率,例如,最大化。 By using a polarization beam splitter, the optical power can be sufficiently improved transmission efficiency of the system, e.g., maximized.

[0025] 光束可以包括多色光束(例如,具有一定的波长的范围)或者单色光束(例如,具有单一波长,例如,如从激光源所获得的)。 [0025] The beam may include a polychromatic light beam (e.g., having a range of wavelengths) or monochromatic light (e.g., having a single wavelength, e.g., as obtained from a laser source).

[0026] 探头可以被构造为用于口内共焦成像,诸如用于口内共焦成像的探头、和/或用于阳型和/或阴型物理牙齿模型的共焦成像。 [0026] The probe may be configured for intraoral confocal imaging, such as for confocal imaging of intraoral probe, and / or for the male and / or female confocal imaging physical dental model.

[0027] 导光部可以包括透明本体和/或一体式本体。 [0027] The light guide portion may include a transparent body and / or integrated body. 例如,透明本体可以包括玻璃或者塑料,并且可以包括固体。 For example, the body may include a transparent glass or plastic, and may comprise a solid. 在多个实施例中,透明本体包括刚性的本体,诸如刚体。 In various embodiments, the transparent body comprises a rigid body, such as a rigid body.

[0028] 导光部可以被侧壁界定,并且一个以上的侧壁可以包括延迟涂层,使得沿着从入射面到出射面的路径的两个偏振分量中的一个偏振分量相对于另一个偏振分量的总延迟是波长的四分之一的奇数倍。 [0028] The light guide portion may be defining the sidewall, and one or more side walls may include a delay coating, so that the direction from the incident surface to a polarization component of two polarization components of the exit surface in the path relative to the other polarization the total delay component is an odd multiple of a quarter wavelength. 以这种方式,能够实现一个偏振分量被相移了V2的奇数倍, 从而提供本文描述的优势效果。 In this manner, it is possible to realize a polarization component is phase shifted an odd multiple V2, thereby providing advantageous effects described herein. 各个侧壁和/或出射面和/或入射面可以是例如平面。 Each of the side walls and / or the exit surface and / or the incident surface may be planar, for example.

[0029] 导光部可以由侧壁界定,并且导光部可以被构造和/或布置为使得通过入射面而进入的光束以全内反射的方式在导光部的至少一个侧壁处反射。 [0029] The light guide portion may be defined by the side wall, and the light guide portion may be configured and / or disposed on at least a reflection at a side wall of the light guide portion so that the incident surface by the light beam into the total internal reflection mode. 上述延迟涂层可以导致全内反射条件的改变或修改,特别是关于两个偏振分量中的一个偏振分量的相移。 The coating may result in the delay of changes or modifications within the total internal reflection conditions, in particular with respect to a polarization component of two polarization components of the shift. 在多个实施例中,本文所述的延迟涂层可以设置在侧壁的处或者侧壁的光束以全内反射的方式被反射的部分处。 In various embodiments, the coating delays described herein may be provided at a portion of the side walls of the beam or reflected by the total internal reflection mode. 在多个实施例中,导光部包括被布置为提供全内反射的角度和折射率。 In various embodiments, the light guide comprises a portion arranged to provide total internal reflection angle and refractive index.

[0030] 作为全内反射的替代或附加,可以利用侧壁的镜面涂层或者侧壁的一部分提供一个以上的反射。 Part [0030] As an alternative to total internal reflection or in addition, a mirror coating may be utilized sidewall or sidewalls provide more than one reflection. 延迟涂层可以提供例如,镜面反射条件关于两个偏振分量中的一个偏振分量的相移的改变或修改。 Delay coating may provide, for example, the specular reflection condition with respect to a polarization component of two polarization components of the shift changes or modifications. 在多个实施例中,例如,如本文所述的延迟涂层可以设置在侧壁处,或者设置在侧壁的光束以镜面反射的方式而被反射的部分处。 In various embodiments, e.g., as described herein delay the coating may be provided at the side wall or side walls disposed in a portion of the light beam in a manner specular reflection reflected.

[0031] 导光部可以包括:上侧壁,其被布置为相对于入射面成锐角;下侧壁,其被布置为相对于入射面成钝角;以及端侧壁,其被布置为相对于入射面和/或出射面成锐角。 [0031] The light guide portion may include: a side wall, which is arranged at an acute angle with respect to the incident surface; the side walls, which are arranged at an obtuse angle with respect to the incident surface; and an end side wall, which is arranged with respect to incident surface and / or the exit surface at an acute angle. 例如,上侧壁可以邻接入射面,下侧壁可以邻接入射面,并且/或者端侧壁可以邻接上侧壁和/或下侧壁。 For example, the sidewalls may abut incident surface, an incident surface may abut the side walls and / or end side wall may abut on the sidewalls and / or lower side wall. 端侧壁与上侧壁之间的角度可以是钝角。 The angle between the upper end of the side wall and the side walls may be obtuse. 下侧壁可以包括出射面。 May include lower side wall exit face.

[0032] 端侧壁可以包括镜面。 [0032] The end of the side wall may comprise a mirror. 例如,端侧壁可以包括镜面涂层。 For example, the end side walls may include a mirror coating. 在这样的实施例中,导光部可以被布置并且/或者构造为使得通过入射面而进入的光束以全内反射的方式在除了端侧壁之外的所有侧壁处反射。 In such an embodiment, the light guide portion may be disposed and / or configured reflected at all sides except at the ends by the side walls so that the incident surface into the light beam so as to total internal reflection. 入射面与下侧壁之间的角度可以在90到125之间,特别地, 在90到115之间。 The angle between the incident surface and the lower side wall may be between 90 to 125 , in particular, between 90 to 115 . 出射面或下侧壁与端侧壁之间的角度可以在20到45之间,特别地,在25到35之间。 Or exit face at an angle between the side and end side walls may be between 20 and 45 , in particular between 25 to 35 . 入射面与上侧壁之间的角度可以在90到65之间,特别地,在90到80之间。 The angle between the incident surface and the upper side wall may be between 90 to 65 , in particular at between 90 to 80 .

[0033] 实施例还提供了一种用于牙科共焦成像的设备,所述设备包括:照明模块,其用于产生光束阵列;光学系统,其用于所述光束阵列的共聚焦;以及如上所述的探头,其中,所述照明模块、所述光学系统和所述探头被布置为使得来自所述照明模块的所述光束阵列通过所述光学系统,经由所述入射面而进入所述导光部,并且经由所述出射面而从所述导光部出射。 [0033] Embodiments also provide a dental apparatus for confocal imaging, said apparatus comprising: an illumination module for generating a light beam array; optical system, the light beam for a confocal array; and above said probe, wherein said illumination module, said optical system and said probe are arranged such that the array of light beams from the illumination module via the optical system, enters via the incident surface of the guide light portion, and the light guide portion from exiting through the exit surface. 特别地,导光部可以被布置为使得实现线偏振光束的偏振的上述改变。 In particular, the light guide portion may be arranged such that the polarization is changed to achieve the linearly polarized light beam.

[0034] 设备可以被构造为用于口内共焦成像,并且例如可以包括用于口内共焦成像的设备,和/或用于阳型和/或阴型物理牙齿模型的共焦成像的设备。 [0034] The apparatus may be configured for confocal imaging in the mouth, and may include, for example, confocal imaging of intra-oral devices, and / or confocal imaging apparatus of the male and / or female physical dental model used. 设备可以包括扫描设备。 Device may include a scanning device. 设备的聚焦光学器件可以包括例如远心或非远心的光学器件。 Focusing optics apparatus may comprise, for example, telecentric optics or telecentric.

[0035]导光部可以被布置为使得光束阵列以相对于入射面的大约90的角度进入导光部。 [0035] The light guide portion may be arranged such that the array of light beams at an angle of approximately 90 with respect to the incident surface into the light guide portion. 在多个实施例中,导光部可以被布置为使得光束阵列以90 5例如,90 3的角度经由入射面而进入。 In various embodiments, the light guide portion may be arranged such that the array of beams at 90 5 e.g., angle of 90 3 enters through the incident surface.

[0036]导光部可以被多个侧壁界定,并且导光部可以被布置并且/或者构造为使得通过入射面而进入导光部的每个光束都在通过出射面而出射之前,在侧壁处反射奇数次。 [0036] The light guide portion may be defining a plurality of side walls, and the light guide portion may be disposed and / or configured such that each light beam enters through the incident light guiding portion through the sides before the exit surface is emitted at the side an odd number of times reflection at the wall. 在多个实施例中,例如,每个光束都可以在通过出射面而出射之前在侧壁处被反射三次或五次。 In various embodiments, for example, by each beam can exit the exit surface prior to being reflected out of three or five times at the side wall. [0037]例如,所述照明模块可以包括单个光发射器或多个光发射器。 [0037] For example, the lighting module may comprise a single light emitter or a plurality of light emitters. 一个以上的光发射器可以发出相干光。 One or more light emitters may emit coherent light. 在多个实施例中,光发射器可以包括单个激光发射器或者多个激光发射器。 In various embodiments, the light emitter may comprise a plurality of individual laser emitters or laser emitters. 光发射器可以包括单个光发射器,并且照明模块例如可以还包括扩束器元件和/或分束器元件,分束器元件用于将来自光发射器的光束分成多个光束和/或光束阵列。 Light emitter may comprise a single light emitter, and the lighting module may further comprise, for example, beam expander elements and / or the beam splitter element, the beam splitter element for a light beam from the light emitter into a plurality of beams and / or beam arrays. 例如,分束器元件可以包括衍射光学器件或者折射光学器件以及它们的组合。 For example, the beam splitter may comprise a diffractive optic element or a refractive optical device, and combinations thereof. 例如,分束器元件可以包括光栅或者微透镜阵列。 For example, the beam splitter element may comprise a grating or microlens array.

[0038] 本文描述的任意设备和方法可以包括用于线偏振光束的偏振器,其中,沿着照明模块与探头之间的光路而布置该偏振器。 [0038] any of the devices and methods described herein may comprise a polarizer for linearly polarized beam, wherein, along the optical path between the illumination arrangement and the probe module and the polarizer. 在多个实施例中,偏振器被布置在照明模块与光学系统之间。 In various embodiments, a polarizer is disposed between the module and the illumination optical system. 偏振器可以被构造并且/或者布置为使得通过导光部的入射面的光束的偏振平面不与导光部的对称平面平行(即,偏振平面相对于对称平面倾斜)。 Polarizer may be configured and / or arranged so as not parallel to the plane of symmetry of the light guide portion through the polarization plane of the light beam incident surface of the light guiding portion (i.e., the plane of polarization is inclined with respect to the plane of symmetry). 对称平面可以被布置为与光路所在的平面平行。 Plane of symmetry may be arranged in a plane located parallel to the light path.

[0039] 本文所述的任意方法和设备都可以包括分束器,其被布置为沿着照明模块与光学系统之间的光路,使得来自照明模块的光束阵列通过分束器,并且使得来自光学模块的返回光束阵列,特别地,朝着检测器被反射。 [0039] any of the methods described herein may include apparatus and a beam splitter, which is arranged along the optical path between the optical system and the illumination module, such that the array of beams from the illumination module through the beam splitter, and that from the optical return beam array module, in particular, is reflected toward the detector. 例如,分束器可以包括半透明的镜面。 For example, the beam splitter may comprise a semitransparent mirror. 来自照明模块并通过光学系统的光束可以包括入射光束,例如,通过入射面而进入导光部的入射光束。 And it may include a lighting module from the incident beam by the beam optical system, e.g., by the incident light beam enters the incident surface of the light guide portion. 在相反方向上通过光学系统的沿着光路的光束可以包括返回光束,例如,通过出射面而进入导光部的返回光束。 In the opposite direction through the optical system may include a return beam along the beam path, e.g., through the exit plane of the light guide portion into the return beam. 返回光束的阵列可以包括被待成像的对象(例如,牙齿部分或区段) 反射的光束阵列。 The array may include a return beam object to be imaged (e.g., segment, or portion of the tooth) light beam reflected by the array.

[0040] 本文描述的方法和设备可以包括用于检测光束阵列的检测器。 [0040] The methods and apparatus described herein may include a detector for detecting an array of beams. 检测器可以被布置和/或构造为检测返回光束阵列。 Detector may be arranged and / or configured to detect the return light beam arrays. 检测器可以包括检测器元件的阵列。 Detector may comprise an array of detector elements. 例如,检测器可以包括CCD、照相机或者光电二极管阵列。 For example, the CCD detector may comprise, camera or photodiode array. 检测器可以包括例如分光光度计。 Detector may comprise, for example, a spectrophotometer.

[0041] 本文描述的设备可以包括焦点移动机构,用于移动光学系统的焦平面。 [0041] The apparatus described herein may include a focus moving means for moving the focal plane of the optical system. 例如,焦点移动机构可以被构造为沿着光轴移动光学系统的一个以上的透镜。 For example, the focus movement mechanism may be configured to move at least one lens along the optical axis of the optical system. 在多个实施例中,焦点移动检测器可以包括平移机构,用于平移光学系统的一个以上的透镜。 In various embodiments, the focus movement detector may include a translation mechanism for translating the one or more optical lens system.

[0042] 本文所述的探头可以包括壳体,其中,例如,导光部和/或光学系统被设置在壳体中。 [0042] The probes described herein may include a housing, wherein, e.g., the light guide portion and / or an optical system is disposed in a housing. 当设置了焦点移动机构时,焦点移动机构也可以设置在壳体内。 When moving the focus mechanism is provided, the focus movement mechanism may be provided within the housing.

[0043] 例如,探头可以包括手持装置的一部分。 [0043] For example, the probe may comprise a portion of the handheld device. 光学系统和/或焦点移动机构可以包括手持装置的一部分。 The optical system and / or the focus moving mechanism may comprise a portion of the handheld device. 在多个实施例中,手持装置被本文所述的壳体界定。 In various embodiments, the handheld device housing are defined herein.

[0044] 图1示意性地示出根据多个实施例的用于牙齿区段或牙齿部分的牙科共焦成像的设备的实例。 [0044] FIG. 1 schematically illustrates an example of a section of a tooth or a dental device for dental portion confocal imaging of a plurality of embodiments. 例如,牙齿区段可以包括一个牙齿、多个牙齿、牙齿残粧和/或缺失了一个或多个牙齿的部分。 For example, the tooth may include a tooth section, a plurality of teeth, the teeth makeup and / or a partial deletion of one or more teeth. 例如,设备可以用于牙齿的口内成像。 For example, the device may be used for oral dental imaging. 作为替代或者附加,也可以采用该设备而执行阳型或阴型的牙齿模型的成像。 Alternatively or additionally, the apparatus may be used while performing the imaging of the dental model of a male or female.

[0045] 图示的设备包括光发射器1作为相干光源。 [0045] The apparatus illustrated comprises a light emitter as a coherent light source. 作为实例,光发射器可以是诸如半导体激光器这样的激光源。 As an example, the light source may be a laser emitters such as semiconductor lasers.

[0046] 如示出的箭头所表示的,发出的光穿过偏光器2,该偏光器2诸如为产生线偏振光的偏振滤光器。 [0046], light passes through the polarizer 2, the polarizer 2, such as to produce a linearly polarized light emitted from the polarization filter as shown by the arrow indicated.

[0047] 线偏振光通过扩束器3,该扩束器3可以包括准直透镜,从而获得具有期望宽度或数值孔径的准直光束。 [0047] The linearly polarized light by a beam expander 3, the beam expander may comprise a collimator lens 3, so as to obtain the desired collimated beam having a numerical aperture or a width.

[0048] 扩束器3之后是分束器元件4,该分束器元件4用于将光束分成光束阵列。 [0048] After the beam expander element 3 is the beam splitter 4, the beam splitter element 4 for the light beam into an array of beams. 例如,以衍射或折射光学器件为形式的分束器元件4可以包括光栅或微透镜阵列。 For example, diffractive or refractive optics to form the beam splitter element 4 may comprise a grating or a microlens array.

[0049] 在图示的实例中,光发射器1包括单个的光源,来自该光源并且经由扩束器和分束器元件而产生了光束阵列。 [0049] In the illustrated example, the optical transmitter 1 includes a single light source from the light source via a beam expander and a beam splitter element array of beams is generated. 作为替代,光发射器1可以已经包括了以阵列形式布置的多个光源。 Alternatively, the optical transmitter 1 may include a plurality of light sources have been arranged in an array. 在这样的实施例中,直接在光发射器1处产生了光束阵列,从而可以避免使用扩束器和/ 或分束器。 In such an embodiment, the light beam generated directly at the light emitter array 1, thereby avoiding the use of a beam expander and / or beam splitters. 作为实例,光源阵列可以被设置成诸如半导体激光器这样的激光源的阵列的形式。 As an example, the light source array may be provided in the form of an array, such as a laser light source such as a semiconductor laser.

[0050] 通常,偏光器2可以被可选地布置在扩束器3与分束器元件4之间,或者甚至可以被布置在分束器元件4之后。 [0050] Generally, the polarizer 2 may optionally be disposed between the beam expander 3 and the beam splitter element 4, or may even be arranged after the beam splitter element 4. 为了便于说明而在此处用单线表示的光束阵列穿过以半透明镜面为形式的分束器5,并且进入光学系统6。 Array of beams for convenience of explanation herein represented by a single line passes through a semi-transparent mirror in the form of the beam splitter 5, and 6 entering the optical system. 分束器元件5可以例如包括偏振光束分束器。 The beam splitter element 5 may for example comprise polarizing beam splitter.

[0051] 在多个实施例中,可以控制偏振的量,使得如本文所述,在被反射的光束朝着分束器而离开探头时,分量的累积相对延迟是1/2波长。 [0051] In various embodiments, the amount of polarization can be controlled, such as described herein, when the reflected beam towards the beam splitter from the transducer, the accumulated relative delay component is 1/2 wavelength. 为了提供1/2波长的积累相对延迟,照明光束的偏振分量可以如本文所述沿着入射面与出射面之间的光路经受四分之一波长的相对相移,并且返回光束的偏振分量可以沿着返回路径在出射面与入射面之间经受四分之一波长的相对相移。 In order to provide the accumulated relative delay of 1/2 wavelength, the illumination beam polarization component as described herein can be subjected to a relative phase shift of a quarter wavelength along the optical path between the incident surface and the exit surface, and the polarization component of the return beam may subjected to a quarter wavelength between the incident surface and the exit surface along a return path relative phase shift. 返回光束的偏振分量的1/2波长的积累相对延迟提供了离开探头的返回光的线偏振光相对于进入探头的线偏振光的90 旋转。 Accumulation return beam polarization component relative delay of the 1/2 wavelength line returning light provided from the transducer relative to the 90 polarization rotation of linearly polarized light entering the probe.

[0052] 光学系统6包括远心或非远心方式运行的共焦透镜器件。 [0052] The optical system 6 comprises a non-telecentric lens device heart away confocal mode operation. 远心共焦光学器件避免了距离引起的放大率的改变,并且在沿着光轴的方向上的距离的宽的范围内,维持了相同的图像放大率。 Telecentric confocal optics avoids distance caused by changing the magnification, and in the distance over a wide range along the optical axis direction, maintain the same image magnification. 或者在包括远心光学器件的实施例中,可以设置额外的中继光学器件,以维持光束的期望的数值孔径。 Or in the embodiment comprises a telecentric optics may be provided an additional relay optics to maintain the desired numerical aperture beam.

[0053] 来自光发射器1并且朝向待成像样品(例如,牙齿区段)传播的光束被称为入射光束,而在样本处被反射并沿着入射光束的光路但是在相反的方向上传播的光束被称为返回光束。 [0053] from the light emitter 1 toward the sample to be imaged (e.g., a tooth section) beam propagation is referred incident beam is reflected at the sample and spread it in the opposite direction along the optical path of the incident beam beam is called the return beam.

[0054] 在光学系统6之后,入射光束阵列进入探头7。 [0054] After the optical system 6, the incident light beam 7 entering the probe array. 特别地,光束阵列经由或通过导光部的入射面而耦合到探头的导光部中。 In particular, the array of beams, or by the incident surface via the light guide portion is coupled to the light guide portion of the probe. 在导光部中,每个光束在经由或通过出射面而耦合输出到待成像的诸如牙齿区段8这样的对象上之前都被反射几次。 In the light guide portion, each of the beams before such objects through 8 or is coupled to the output through the exit surface to be imaged, such as a tooth section is reflected several times. 以该方式,入射光束阵列被朝着牙齿区段8出射,从而,在牙齿表面上产生光斑阵列。 In this manner, the incident light beam array is emitted toward the tooth section 8, thereby generating an array of light spots on the tooth surface.

[0055] 同样如牙齿与探头之间的箭头之一所图示的,反射光经由出射面再次进入探头7, 特别是进入其导光部。 [0055] As also illustrated arrow between the teeth of one of the probe, reflected light enters again through the exit surface 7 of the probe, in particular into its portion of the light guide. 以该方式,每个被反射的/返回的光束都在与入射光束行进的方向相反的方向上沿着光路行进。 In this manner, each / return beams are reflected along the optical path travels in a direction opposite to the direction of travel of the incident light beam. 因此,返回光束也在探头7的导光部内被反射几次,并且在相反的方向上穿过光学系统6。 Thus, also the return beam is reflected several times inside the probe portion 7 of the light guide, and passes through the optical system 6 in the opposite direction. 在半透明镜面5处,返回的光束被朝着成像光学器件9反射,该成像光学器件9包括一个以上的透镜,其后是针孔阵列10。 At semitransparent mirror 5, 9 reflected beam is returned toward the imaging optics, the imaging optics includes one or more lens 9, followed pinhole array 10.

[0056] 然后,返回光束阵列撞击在包括检测器元件阵列的检测器11上。 [0056] Then, the return beam impinges on the array comprises a detector array of detector elements 11. 例如,检测器11可以是CCD照相机或光电二极管阵列。 For example, detector 11 may be a CCD camera or photodiode array. 每个检测器元件或传感元件都与阵列10中的针孔相对应。 Each detector element or sensing elements each of which corresponds in the pinhole array 10.

[0057] 检测器11被连接到处理单元12,在处理单元12处抓取并分析在每个检测器元件中测量的每个光强度。 [0057] The detector 11 is connected to the processing unit 12 to fetch and analyze each light intensity measured at each detector element 12 at the processing unit.

[0058] 设备还包括控制单元13,其被连接到光发射器1以及电机14。 [0058] The apparatus further comprises a control unit 13, which is connected to the optical transmitter 1 and a motor 14. 电机14是用于移动光学系统6的焦平面的焦点移动机构的实例。 Motor 14 is an example of a focus moving means moves the focal plane of the optical system 6. 特别地,电机14连接到光学系统6以沿着光轴移动或平移光学系统的一个以上的透镜。 In particular, the motor 14 is connected to the optical system 6 to more than one optical system to move or translate the lens along the optical axis. 以该方式,焦平面位置可以被改变或移动。 In this manner, the position of the focal plane can be changed or moved.

[0059] 在接收到焦平面的位置已经改变(或者一个以上的透镜已经被移动)的反馈信号之后,控制单元13触发光发射器1以产生光脉冲。 [0059] In the received position has changed focal plane (or more than one lens has been moved) after the feedback signal, the control unit 13 triggers a light emitter to generate light pulses. 处理单元12将抓取如下数据:其表示由检测器11检测到的、与在牙齿区段8处反射的光脉冲相对应的光强度。 The processing unit 12 to fetch the following data: indicating detected by the detector 11, and the light intensity in the reflected light pulses tooth portion 8 at the corresponding. 对于焦平面的多个位置将重复该步骤。 For a plurality of positions of the focal plane will repeat this step.

[0060] 如在WO 00/08415中详细概述的,其全部公开内容通过引用并入本文中,通过针对特定像素而确定其光强度最大的焦平面位置,来确定成像物体(例如,牙齿区段)的表面拓扑结构。 [0060] As outlined in detail in WO 00/08415, the entire disclosure of which is incorporated herein by reference, and to determine the maximum light intensity for a particular pixel position by the focal plane, determining the imaged object (e.g., the teeth sections ) of the surface topology. 以该方式,可以获得例如牙齿区段这样的物体的三维表示;其可以被显示,并且/或者被进一步处理。 In this manner, the three-dimensional object can be obtained, for example, such sections showing teeth; which may be displayed and / or processed further.

[0061] 光束阵列可以包括具有不同波长的光束。 [0061] The beam array may include beams of different wavelengths. 为此目的,光发射器1可以包括发射不同波长的光的不同光源。 For this purpose, the light emitter may comprise a light source emitting different wavelength different. 在具有波长不同的光束的阵列的实施例中,检测器可以包括例如具有颜色分辨率的分光光度计。 In an embodiment having an array of light beams of different wavelengths, the detector may comprise for example, a color resolution of the spectrophotometer. 分光光度计的实例包括三芯片CCD照相机,或在单色CCD或其它光传感器上使用拜耳滤色片。 Examples include tris spectrophotometer chip CCD camera, or the Bayer color filter on a monochrome CCD or other light sensors.

[0062] 通过使用同时被聚焦在不同的焦平面上的具有不同波长的光组分或光束,由于能够同时测量不同的焦平面范围,所以可以减少用于成像的时间。 [0062] simultaneously focused on different focal planes of the optical components or by the use of light beams having different wavelengths, it is possible to measure the range of different focal planes at the same time, it is possible to reduce the time for imaging.

[0063] 探头7可以包括壳体。 [0063] Probe 7 may comprise a housing. 例如,光学系统6和导光部二者均可以设置在这样的壳体内。 For example, both the light guide portion 6 and the optical system can be disposed within such housing. 壳体可以被构造为手持装置,使得导光部和/或光学系统6和/或电机14被包括在该手持装置中。 The housing may be configured as a handheld device, such that light guide portion and / or an optical system 6 and / or the motor 14 is included in the handheld device.

[0064] 图2示意性地图示了根据多个实施例的探头7的顶视图。 [0064] FIG. 2 schematically illustrates a top view of the embodiment of the probe according to embodiment 7 of the plurality. 探头7具有导光部,导光部具有入射面15,图3中图示了入射面15的示意平面图。 Probe 7 has a light guide portion having an incident face of the light guide portion 15, FIG. 3 illustrates a schematic plan view of the entrance surface 15. 图4示意性地图示了探头的通过线AA,B卩,与对称平面平行的截面图,该平面沿着导光部的光轴延伸并且与导光部的下侧壁垂直。 FIG 4 schematically illustrates a probe through the line AA, B Jie, sectional view parallel to the plane of symmetry, the plane extending along the optical axis of the light guide portion and the lower portion of the vertical side wall of the light guide.

[0065] 来自光发射器和光学系统的光经由入射面15以大约90的角度,例如,基本上垂直于入射面15地进入导光部。 [0065] The light guide portion of the light incident surface 15 through an angle of about 90 , e.g., substantially perpendicular to the incident surface 15 into the ground from the light emitter and the optical system. 入射光能够被线偏振。 The incident light can be linearly polarized. 在图3示意性地图示的实施例中,偏振矢量20具有分别相对于探头和导光部的对称平面的非零角度。 In the third embodiment schematically illustrated in FIG., The polarization vector 20 has a nonzero angle with respect to the plane of symmetry of the probe and the light guide portion. 在多个实施例中,例如,偏振矢量20倾斜大约45的角度。 In various embodiments, for example, the polarization vector 20 of the inclined angle of about 45 . 图3中的截面示出了坐标系,其中,对称平面平行于纵轴。 FIG 3 shows a cross section of a coordinate system, wherein, parallel to the longitudinal plane of symmetry.

[0066] 如图4所示意性地图示地,布置导光部,并且以经由入射面15而进入导光部的每个光束都在侧壁处被反射的方式,使光耦合到导光部中。 [0066] FIG 4 illustrates schematically, the arrangement of the light guide portions, and each beam to enter the light guide portion 15 via the incident surface and are reflected at the sidewall embodiment, the light guide unit optically coupled to in. 在图4的图示中,用单线表示仅一条光束,该光束在经由出射面16离开导光部之前被反射三次。 In the illustration of FIG. 4, showing only a single line by the beam, being three times before leaving the light guide portion 16 of the light beam reflected by the exit surface. 本领域的普通技术人员将得出, 以与图4所示的光束相似的方式,能够沿着导光部传递且接收多条光束。 Those of ordinary skill in the art will be derived in a similar manner as shown in FIG. 4 the light beam can be transmitted along the light guide portion and receives a plurality of beams.

[0067] 在多个实施例中,第一次反射发生在上侧壁17处,上侧壁17与入射面15邻接并且被布置为与入射面15成锐角。 [0067] embodiment, the first reflection occurs on the side wall 17 in a plurality of embodiments, the side wall 17 adjacent to the incident surface 15 and 15 are arranged at an acute angle to the incident surface. 第二次反射可以发生在下侧壁18处,下侧壁18也与入射面15 邻接,并且被布置为与入射面15成钝角。 The second reflective lower sidewall 18 may occur, and also the lower side wall 18 adjacent to the incident surface 15, and are arranged to the incident surface 15 at an obtuse angle. 最后的反射可以发生在端侧壁19处,端侧壁19与上侧壁和下侧壁二者邻接。 The last reflection may occur at the end wall 19, side wall 19 adjacent to both the upper side wall and a lower side wall. 出射面16能够是下侧壁18的一部分。 Emission surface 16 can be a part of the side wall 18. 端侧壁22可以包括镜面,例如,该镜面可以通过导光部的相应表面的合适的涂层而获取。 End of the sidewall 22 may include a mirror, for example, the mirror can be obtained by a suitable coating respective surfaces of the light guide portion. 出射面16可以对应于端侧壁19到下侧壁18上的垂直投影。 Exit face 16 may correspond to the end wall 19 perpendicular to the projection 18 on the side walls.

[0068] 在多个实施例中,导光部包括刚性、例如硬性的一体式本体。 [0068] embodiment, the light guide portion comprises a rigid, for example rigid unitary body in a plurality of embodiments. 例如,导光部可以包括玻璃本体或透明树脂构成的本体。 For example, the light guide may include a body portion of a body of glass or transparent resin. 例如,在上侧壁17和下侧壁18处的第一次和第二次反射可以由全内反射产生。 For example, the first side wall 17 and the lower sidewall 18 of the first and second reflected by total internal reflection can be generated. 在多个实施例中,入射角度和折射率可以被布置且构造为使得入射角度在临界角度以上,使得由于侧壁与能够是空气或其它介质的周围介质的折射率的差异,而导致产生全反射。 In various embodiments, the angle of incidence and the refractive index may be arranged and configured such that the angle of incidence above the critical angle, since the side wall such that the refractive index difference capable of surrounding air or other medium of the media, resulting in a full and reflection. 全内反射可以包括例如衰减全内反射、受抑全内反射或者全内反射中的一者以上。 It may include, for example, total internal reflection attenuated total internal reflection, frustrated total internal reflection or total internal reflection of one or more.

[0069] 导光部被以如下方式构造:经由入射面15而进入导光部的光束的偏振通过导光部而沿着光路改变。 [0069] The light guide portion is constructed in the following manner: the light beam entering the polarization of the light guide portion varies along the light path through the incident surface 15 through the light guide portion. 在图4所示的实施例中,在出射面16处离开的光束(在经由入射面15而进入时具有线偏振)示出了例如椭圆偏振或者圆偏振中的一者以上。 In the embodiment illustrated in Figure 4, the beam 16 exiting the exit surface (having linear polarization at the incident surface 15 into the via) shows, for example elliptically polarized or circularly polarized in one or more.

[0070] 基于本文所提供的启示,本领域的技术人员能够将导光部构造成利用导光部的材料和/或在导光部的如本文所述地发生反射的一个以上的侧壁上的延迟涂层,而提供如本文所述的偏振的改变,例如,参考图5。 [0070] Based on the teaching herein provided, one skilled in the art the light guide portion can be configured using a material on the light guiding portion and / or more than one side wall reflection occurs in the light guide portion as described herein delay coating, to provide change in polarization as described herein, e.g., with reference to FIG.

[0071] 在多个实施例中,光束或光线的偏振包括彼此垂直的两个偏振分量。 [0071] embodiment, the beam polarized light or comprises two polarization components perpendicular to each other in a plurality of embodiments. 在多个实施例中,偏振矢量包括彼此垂直的两个矢量分量。 In various embodiments, the polarization vector comprises two vector components perpendicular to each other. 偏振能够被分成"P"分量和"s"分量。 Polarization can be divided into "P" component and "s" components. P分量是与入射平面平行的分量,其中,例如,入射平面是包含了在表面上入射的光线的传播方向以及被反射的和可能被透射的光线的传播方向的平面。 P component is a component parallel to the plane of incidence, which, for example, the incident plane containing the direction of propagation of light incident on the surface of the plane and the direction of propagation may be reflected and transmitted light. 在多个实施例中,入射平面分别与探头和导光部的对称平面平行。 Embodiment, the probes are parallel to the plane of incidence and the plane of symmetry of the light guide portion in a plurality of embodiments.

[0072] s分量是与入射平面垂直的分量。 [0072] s component is a component perpendicular to the plane of incidence. 例如,在一个以上的侧壁上的延迟涂层能够被构造为使得两个偏振分量中的一个偏振分量(与两个偏振分量中的另一个偏振分量相比)沿着从入射面到出射面的路径被延迟了波长的四分之一的奇数倍(或者V2或90的奇数倍)。 For example, coating on the delay one or more of the side walls can be configured such that one polarization component of two polarization components (compared to the other polarization component of two polarization component) direction from the entrance surface to the exit surface the path is delayed by an odd multiple of a quarter wavelength (or V2 or an odd multiple of 90 ).

[0073] 图5示意性的图示了探头7的截面图,其中,与图4的实施例相似地,截面平面与探头或导光部的对称平面平行。 [0073] FIG 5 illustrates a schematic cross-sectional view of the probe 7, wherein the embodiment of Figure 4 is similarly a cross-sectional plane or plane of symmetry of the probe is parallel to the light guide portion. 如图4的实例中,探头7具有导光部,导光部具有入射面15、出射面16、上侧壁17、下侧壁18以及端侧壁19。 As shown in Example 4, the probe having a light guiding portion 7, the light guide portion 15 having an incident face, an outgoing face 16, the side wall 17, the side walls 18 and end wall 19.

[0074] 作为替代或者组合,如图5所示,能够设置透明盖板21,该透明盖板被布置在离出射面16-定距离处。 [0074] Alternatively or in combination, as shown in FIG. 5, a transparent cover plate 21 can be provided, the transparent cover is disposed away from the exit plane at a given distance 16-. 该盖板21可以包括板,并且由于卫生原因而可以是可更换的,并且还可以例如根据本文描述的实施例,例如参考图4而设置。 The cover plate 21 may comprise, for hygienic reasons and may be replaceable, and may also be, for example, according to embodiments described herein, for example, provided with reference to FIG. 4.

[0075] 在图5所示的实施例中,探头7的导光部能够比图4的实施例中的长,例如,导致光束在经由出射面16离开之前被反射五次。 [0075] In the embodiment illustrated in FIG. 5, the light guide portion 7 of the probe can be than that in the embodiment of FIG. 4 the length, e.g., five times resulting in the reflected beam prior to exiting through exit face 16. 能够根据本文公开的实施例而设置任意奇数次的反射。 It can be set to any odd number of times reflected according to embodiments disclosed herein.

[0076] 在例如本文参考图5而描述的多个实施例中,导光部由玻璃制成,并且例如,从以N-BK7为商品名称的Schott AG获得。 [0076] embodiment, the light guide portion is made of a plurality of glass 5, for example, described herein with reference to FIG embodiment, and for example, obtained from the N-BK7 to trade names of Schott AG. 为了实现偏振的期望的改变,例如,下侧壁18能够被涂覆有延迟涂层,并且例如,上侧壁17能够保持未被涂覆。 To achieve the desired polarization changes, e.g., the side walls 18 can be coated with a coating delayed, and for example, the side wall 17 can be kept uncoated.

[0077] 在一些实施例中,涂层包括以下材料的多个交互层:氧化钛(Ti3O5、简称为"H",高折射率)、二氧化硅(Si〇2、简称为"L",低折射率)、以及氧化钽(Ta2〇5、简称为"M",中间折射率)。 [0077] In some embodiments, the coating comprising a plurality of alternating layers of the following materials: titanium oxide (the Ti3O5, simply referred to as "H", high refractive index), silicon dioxide (Si〇2, simply referred to as "L", a low refractive index), and tantalum oxide (Ta2〇5, simply referred to as "M", the intermediate refractive index). 多层可以包括低折射率层、高折射率层以及中间折射率层。 The multilayer may include a low refractive index layer, high refractive index layer and the intermediate refractive index layer. 低折射率层可以包括多个不相邻的低折射率层;高折射率层可以包括多个不相邻的高折射率层;并且中间折射率层可以包括多个不相邻的中间折射率层。 Low refractive index layer may comprise a plurality of non-adjacent low refractive index layer; high refractive index layer may comprise a plurality of non-adjacent high refractive index layer; and a refractive index of the intermediate layer may comprise a plurality of non-adjacent intermediate refractive index Floor. 这些层能够以以下顺序而沉积在玻璃上:空气-LHLHLMLM-玻璃,例如。 These layers can be deposited in this order on a glass: air -LHLHLMLM- glass, for example. 涂层的总厚度能够为例如大约450nm。 The total thickness of the coating can be, for example, to about 450nm.

[0078] 在多个实施例中,端侧壁19包括诸如金属层(例如,镀银层)这样的镜面涂层。 [0078] In various embodiments, the end wall 19 includes a mirror coating such as a metal layer (e.g., silver plating layer). 例如,当利用其它表面中的由TIR引起的现有的延迟补充时,前端上的镜面能够被涂覆适当的薄膜,如本文所述,以提供完整的1 /4波长延迟。 For example, when using the conventional delay caused supplemented by other TIR surface, the mirror on the front end can be appropriately coated film, as described herein, to provide a complete 1/4-wave retarder.

[0079] 表1不出了对于具有680nm的波长的光线的具体入射角度(AOI)的P分量与S分量之间的相位延迟。 [0079] Table 1 between the phase of the not specific angle of incidence (AOI) of the P component and the S component light having a wavelength of 680nm delay. 在上侧壁和下侧壁处发生全内反射,而由于镜面涂层而在端侧壁处产生反射。 Total internal reflection occurs on the side wall and the lower side walls, and because the reflective mirror coating is generated at the end of the side walls. 由于在下侧壁处的上述涂层,导致以通过导光部的相位延迟总和为450的方式,影响在下侧壁处的全反射。 Since the coating layer at the lower side wall, resulting in a delay in the phase by the sum of the light guide portion 450 way, the influence of total reflection at the lower side wall.

[0080] 表1:作为AOI的函数的相位延迟 [0080] Table 1: As a function of the phase delay AOI

Figure CN106572896AD00111

[0082] 如可见的,当光束穿过入射面并且穿过出射面时,不存在相位延迟或者偏振的改变。 [0082] As can be seen, when the light beam passes through the incident surface and through the exit surface, it does not change the polarization or phase delay exists. 在金属镜面处反射时不发生或几乎不发生相位延迟。 Does not occur at the reflective metal mirror or a phase delay occurs hardly.

[0083] 在上侧壁和下侧壁处的第一次的四个反射点处的p分量和s分量之间的相位延迟总和为450或5V2, 即,V2的奇数倍,或者波长的四分之一(λ/4)的奇数倍。 [0083] the sum of the phase delay between the p component and s component at the first four reflection points on the sidewalls and at the lower side wall is 450 or 5V2, i.e., V2 odd multiple of the wavelength or one quarter (λ / 4) of the odd number of times. 结果,对于通过入射面15而进入导光部时被线偏振的光束(其中,偏振矢量相对于探头或者导光部的对称平面倾斜),在通过出射面而离开时,可以实现椭圆偏振。 As a result, for by the incident surface 15 and enters the light guide portion is polarized in a line beam (wherein the polarization vector with respect to the probe or guide plane of symmetry of the light portion is inclined), when the exits through the exit surface, can be realized elliptically polarized.

[0084] 也可以使用其它涂层,以获得期望的相位延迟。 [0084] Other coatings may be used to obtain the desired phase delay. 此外,可以不同地设定在不同的反射点或反射区域处的相位延迟。 In addition, the delay can be set differently in the different phases of the reflection point or a reflection region. 例如,代替使用金属镜面涂层,可以使用介电镜面涂层(例如,包括多个介电层),其能够在侧壁处提供端非零相位延迟。 For example, instead of a metal mirror coating, a dielectric mirror coating may be used (e.g., including a plurality of dielectric layers), it is possible to provide a non-zero phase delay at the end of the side walls.

[0085] 作为根据本文描述的实施例的另一个实例,通过采用适当的涂层设计,涂层能够被沉积在上侧壁和下侧壁这两者上。 [0085] As another example embodiment according to embodiments described herein, the design by using a suitable coating, the coating can be deposited on both the upper side wall and a lower side wall. 在多个实施例中,在导光部之中的沿着光路的所有反射的累积相位延迟总和为与波长的四分之一的奇数倍相对应的V2的奇数倍。 In various embodiments, the light guide portion and the sum among all the accumulated phase of the reflected along the optical path and is an odd multiple of a quarter wavelength that corresponds to an odd multiple of V2.

[0086]虽然本文已经示出并且描述了本发明的优选实施例,但是对于本领域的技术人员明显的是,这样的实施例仅以实例的方式提供。 [0086] Although described herein have been shown and described a preferred embodiment of the present invention, those skilled in the art it is obvious that such embodiments are provided by way of example only. 在不背离本发明的情况下,本领域的技术人员将会进行各种改变、修改和替代。 Without departing from the invention, those skilled in the art will that various changes, modifications and substitutions. 应当理解为,在实践本发明时可以采用本文描述的本发明的实施例的各种替代例。 It is understood that, in practicing the present invention, the various embodiments of the present invention described herein may be employed in alternative embodiments. 以下权利要求意在限定本发明的范围,并且在这些权利要求极其等同物的范围内的方法和结构从而被包含在内。 Intended to limit the scope of the present invention, the following claims, which claims methods and structures within the scope and equivalents of extremely so as to be included.

Classifications
International ClassificationG01B11/24, A61C9/00
Cooperative ClassificationG02B6/2726, G02B6/32, A61C9/0053, A61C9/0066, A61B1/24, A61B5/0068, G01B11/24
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19 Apr 2017PB01
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