WO2005098838A1 - 対物レンズ、光ヘッド、及び光ピックアップ装置 - Google Patents
対物レンズ、光ヘッド、及び光ピックアップ装置 Download PDFInfo
- Publication number
- WO2005098838A1 WO2005098838A1 PCT/JP2005/005316 JP2005005316W WO2005098838A1 WO 2005098838 A1 WO2005098838 A1 WO 2005098838A1 JP 2005005316 W JP2005005316 W JP 2005005316W WO 2005098838 A1 WO2005098838 A1 WO 2005098838A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- objective lens
- lens
- optical
- light
- light source
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1372—Lenses
- G11B7/1374—Objective lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/24—Optical objectives specially designed for the purposes specified below for reproducing or copying at short object distances
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B9/00—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -
- G02B9/12—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having three components only
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1392—Means for controlling the beam wavefront, e.g. for correction of aberration
- G11B7/13922—Means for controlling the beam wavefront, e.g. for correction of aberration passive
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1372—Lenses
- G11B2007/13727—Compound lenses, i.e. two or more lenses co-operating to perform a function, e.g. compound objective lens including a solid immersion lens, positive and negative lenses either bonded together or with adjustable spacing
Definitions
- the present invention relates to an objective lens for recording and Z or reproduction of an optical information recording medium, an optical head and an optical pickup device using the objective lens.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2003-84196
- Patent Document 2 Japanese Patent Application Laid-Open No. 11-223762
- Patent Document 3 Japanese Patent Application Laid-Open No. 5-307139
- an objective lens for an optical pickup device is required to have a high NA and a light weight, it is not usually a telecentric optical system.
- the objective lens is telecentric, in order to correct spherical aberration, curvature of field, distortion aberration, coma aberration, and astigmatism, it is necessary to decrease NA or to increase the number of lenses. It is because you can not do it.
- the objective lens is retrofocus type, it is not easy to manufacture an objective lens with a small amount of V and a small number of aberrations with the number of lenses.
- the objective lens for the optical pickup device when the objective lens for the optical pickup device is made telecentric on the image side, sharp image formation becomes possible at the time of reading information and the like, and the performance of the pickup can be enhanced.
- the objective lens for the optical pickup device is a retrofocus type, high NA can be achieved without increasing the diameter of the incident light beam, and as a result, working 'di The back focus corresponding to the stance can be taken large.
- the present invention it is possible to effectively suppress the occurrence of various aberrations with a relatively small number of lenses, and to achieve optical recording and Z that can achieve relatively high NA while securing sharp imaging. Or it aims at providing an objective lens for reproduction.
- Another object of the present invention is to provide an optical head and an optical pickup device incorporating an objective lens as described above.
- One aspect of the present invention for achieving the above object is an objective lens for recording and Z or reproduction for an optical information recording medium, which comprises, in order from the light source side, (a) light source side
- the first lens group has a concave surface facing the concave surface and has negative refractive power
- the second lens group having positive refractive power
- a third lens group having positive refractive power
- FIG. 1 is a view for explaining the structure of an optical pickup device according to an embodiment of the present invention.
- FIG. 2 is an optical path diagram of the objective lens of the first embodiment.
- FIG. 3 is a view showing wavefront aberration of the objective lens of the first embodiment.
- FIG. 4 is a diagram showing distortion aberration of the objective lens of the first embodiment.
- FIG. 5 is a view showing curvature of field of the objective lens of the first embodiment.
- FIG. 6 is a diagram showing the telecentricity of the objective lens of the first embodiment.
- FIG. 7 is an optical path diagram of an objective lens of a second embodiment.
- FIG. 8 is a diagram showing wavefront aberration of the objective lens of the second embodiment.
- FIG. 9 is a diagram showing distortion aberration of the objective lens of the second embodiment.
- FIG. 10 is a diagram showing the field curvature of the objective lens of the second embodiment.
- FIG. 11 is a diagram showing the telecentricity of the objective lens of the second embodiment.
- An objective lens for recording and Z or reproducing for an optical information recording medium which is in the shape of a meniscus with a concave surface facing the light source side and has negative refractive power in order from the light source side
- a first lens group (b) a second lens group having positive refracting power, and (c) a meniscus with a concave surface facing the image side
- a third lens group having positive refractive power.
- the first to third lens groups basically consist of a single lens in order to make the structure of the objective lens simple and lightweight, one of the lens groups is attached with a plurality of lenses. It is good as a combined lens! /.
- the “objective lens” according to the present invention is integrally moved by an actuator for focusing and tracking.
- the first lens group having negative refractive power is in the shape of a meniscus with the concave surface facing the light source side, so it is possible to reduce the Petzval sum and to reduce the curvature of field.
- the third lens unit having a positive refracting power is in the shape of a meniscus with the concave surface facing the image side, it is possible to take a long working distance. That is, with a relatively small number of lens groups, high NA can be achieved while efficiently suppressing the occurrence of various aberrations, and high-precision, high-density optical recording and Z or reproduction become possible.
- this objective lens when it is considered that the objective lens has a force with the first lens group and the second and third lens groups, this objective lens can increase the NA regardless of the incident light beam diameter, and can achieve a working distance. It has a retrofocus lens configuration that can earn the equivalent back focus.
- condition (1) it is possible to reduce coma aberration generated when the image height becomes large while securing a working distance, and to secure sufficient telecentricity as well.
- the condition 01 in the first half, I ⁇ 23 / ⁇ 1 I is satisfied, it is possible to reduce the coma aberration that occurs when the image height becomes large while securing the working 'distance.
- the condition I f23 / fl I ⁇ 0. 10 in the second half when the condition I f23 / fl I ⁇ 0. 10 in the second half is satisfied, the telecentricity can be sufficiently ensured while securing the working distance.
- a more preferable condition is to satisfy: 6.06 I m / n
- the terms “telecentricity” and “telecentricity” used in the above description mean, for example, a half angle of view of 2.5 ° and a chief ray angle of not more than 0. ⁇ .
- the objective lens has a numerical aperture NA on the image side under the following conditions:
- the objective lens has predetermined telecentricity on the image side.
- sharp imaging can be performed for recording and Z or reproduction of optical information, and the performance of the optical pickup can be enhanced.
- the objective lens is a second lens group, a third lens group, and a force aspheric lens. In this case, various aberrations of the objective lens can be further suppressed.
- the first to third lens groups are formed of a glass lens.
- the processing accuracy and stability of the objective lens can be enhanced, and the imaging performance can be enhanced.
- An optical head comprising the above-described objective lens for converging incident light flux as a spot, and forming a light spot on the recording surface of the optical information recording medium by the objective lens.
- optical head since an objective lens capable of achieving high NA while suppressing generation of various aberrations efficiently with a relatively small number of lens groups is used, optical information of high accuracy and high density can be obtained. Recording and Z or playback become possible.
- a first optical pick-up provided with the above-mentioned optical head and capable of reading information on the recording surface of the optical information recording medium or writing information on the recording surface via the optical head.
- FIG. 1 is a view for explaining the structure of an optical pickup device according to an embodiment of the present invention.
- This optical pickup device comprises an objective lens 2 in a three-group three-element configuration, a semiconductor laser 3 as a light source, and a power coupling lens 4 that converts the divergence angle of divergent light emitted from the semiconductor laser 3.
- a light detector (also referred to as a sensor) 5 that receives light reflected from an optical disk 6 that is an optical information recording medium as a sensor.
- the optical pickup device of FIG. 1 is further disposed between an objective lens 2 and a coupling lens 4, and a polarization beam splitter 71 for separating the reflected light from the optical disc 6 toward the light detector 5.
- a polarization beam splitter 71 for separating the reflected light from the optical disc 6 toward the light detector 5.
- the force optical pickup device (not shown) includes a light source drive circuit for operating the semiconductor laser 3 as appropriate, a sensor drive circuit for operating the light detector 5 as appropriate, and a displacement drive circuit for operating the two-axis actuator 81. Etc.
- the semiconductor laser 3 generates, for example, laser light having a wavelength of 500 nm or less, and reproduces the information recorded at high density on the optical disc 6 which is an optical information recording medium. It is possible to record information at high density on the optical disk 6 and the optical disk 6.
- the objective lens 2 comprises a first lens 21 that constitutes the first lens group alone, a second lens 22 that constitutes the second lens group alone, and a third that constitutes the third lens group alone. It is composed of three lenses 23.
- the first to third lenses 21-23 are integrated and fixed in a precise arrangement by the holder 25, and the objective lens 2 as a whole is made into an optical head by utilizing the flange portion 25a of the holder 25. It can be attached to 10 precisely.
- the objective lens 2 has an NA in the range of 0.70-0.90 on the side of the optical disc 6, and corresponds to a standard with a relatively high recording density.
- the objective lens 2 has telecentricity on the optical disc 6 side, and sharp image formation becomes possible in recording and reproduction of optical information, and the performance of the optical pickup can be enhanced.
- the objective lens 2 can be considered as a retrofocus type lens system consisting of a first lens 21 having negative refractive power and second and third lenses 22 and 23 having positive refractive power as a whole.
- the NA on the side of the optical disk 6 can be increased, and at the same time, a kinging distance equivalent to the distance to the optical disk 6 can be obtained relatively sufficiently.
- the first lens 21 is a meniscus lens having negative refractive power and having a concave surface facing the semiconductor laser 3 as a light source.
- the second lens 22 is a biconvex lens, and appropriately collimates or converges the light beams diverged by the first lens 21.
- the third lens 23 has positive refractive power, and can converge the light beam passing through the second lens 22 as a fine spot on the information recording surface 62 of the optical disc 6.
- the third lens 23 is a meniscus lens whose concave surface is directed to the optical disk 6 side. This makes it possible to take a long 'kinking' distance.
- the optical pickup device shown in FIG. 1 when reproducing information from the optical disk 6, laser light is emitted from the semiconductor laser 3.
- the light beam emitted from the semiconductor laser 3 is a polarization beam splitter 71, a coupling lens 4, and 1Z4 waves.
- the light passes through the long plate 73 to form a circularly polarized parallel light flux.
- the luminous flux is narrowed by the stop 75 and condensed by the objective lens 2 on the information recording surface 62 through the transparent substrate 61 of the optical disk 6.
- the light beam modulated and reflected by the information pits on the information recording surface 62 passes through the objective lens 2, the diaphragm 75, the 1Z four-wave plate 73, and the coupling lens 4 again, and enters the polarization beam splitter 71.
- the light beam incident on the polarization beam splitter 71 is reflected here and given astigmatism when passing through the astigmatism optical system 77, and is incident on the light detector 5.
- a read signal of the information recorded on the optical disk 6 can be obtained.
- focus shape detection and track detection are performed by detecting a spot shape change on the light detector 5 and a light amount change due to a position change. Based on this detection, the objective lens 2 is moved in the optical axis direction so that the 2-axis actuator 81 incorporated in the optical head 10 forms an image on the information recording surface 62 of the optical disc 6 with the light flux from the semiconductor laser 3. The objective lens 2 is moved in a direction perpendicular to the optical axis so that the light flux from the semiconductor laser 3 is imaged on a predetermined track.
- the above is the description for reproducing information from the optical disc 6. Also in the case of recording information on the optical disc 6, the same operation as in the optical system shown in FIG. To be done. However, the intensity of the laser beam emitted from the semiconductor laser 3 is set to a predetermined threshold value or more for recording. Further, the sequence of tracking, focusing, confirmation of the writing information, etc. at the time of writing can be appropriately changed in accordance with the application and specification of the optical pickup device.
- the focal length fl of the first lens 21 is -71. 54 mm, and the second and third lenses 22.
- the objective lens has a combined focal length f23 of 2.5, 23 as a whole, a focal length F of 3.20 mm, and an image-side numerical aperture NA of 0.71.
- Specifications of the objective lens according to the first example are listed in Table 1 below.
- Table 1 “i-th surface” indicates the surface number of the lens surface on the light source side, “ri” indicates the curvature radius of the corresponding lens surface, and “di” indicates the corresponding lens surface force to the next lens surface.
- Ni indicates the distance from the corresponding lens surface to the next lens surface, and “Remarks” indicates the diameter of the glass material of the lens made of a glass lens.
- the fourth surface force is also aspheric on the seventh surface.
- the conic constant ⁇ and the aspheric coefficient A of each surface are given in Table 2 below.
- FIG. 2 shows an optical path diagram of the objective lens 2 in the first embodiment.
- 3 to 6 show aberration characteristics of the objective lens 2 of the first embodiment. That is, FIG. 3 shows the amount of wavefront aberration according to the image height in the first embodiment.
- SA sinherical aberration
- CM compound
- AS astigmatism
- RMS the root mean square of these aberrations.
- 4 shows the distortion amount according to the image height in the first embodiment
- FIG. 5 shows the curvature of field according to the image height in the first embodiment
- FIG. 6 shows the first embodiment. The telecentricity according to the image height in an example is shown.
- the focal length fl of the first lens 21 is -64. 58 mm, the second and third lenses 22.
- the objective lens has a combined focal length f23 of 4.5 mm, an overall focal length F of 3. Olmm, and an image-side numerical aperture NA of 0.71.
- both the fourth surface force and the seventh surface are aspheric.
- the conic constant ⁇ and the aspheric coefficient A of each surface are given in Table 4 below.
- FIG. 7 shows an optical path diagram of the objective lens 2 in the second embodiment.
- 8 to 11 show aberration characteristics of the objective lens 2 of the second embodiment. That is, FIG. 8 shows the amount of wavefront aberration according to the image height in the second embodiment, FIG. 9 shows the amount of distortion difference according to the image height in the second embodiment, and FIG. The amount of curvature of field according to the image height in the two examples is shown, and FIG. 11 shows the telecentricity according to the image height in the second example.
- the objective lens of the present invention it is possible to achieve high NA while suppressing generation of various aberrations efficiently with a relatively small number of lens groups, so high-precision, high-density optical recording and Z or reproduction can be achieved. It will be possible.
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Lenses (AREA)
- Optical Head (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006512002A JP4539651B2 (ja) | 2004-04-09 | 2005-03-24 | 対物レンズ、光ヘッド、及び光ピックアップ装置 |
US11/547,686 US7656774B2 (en) | 2004-04-09 | 2005-03-24 | Objective lens, optical head, and optical pickup apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004116269 | 2004-04-09 | ||
JP2004-116269 | 2004-04-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005098838A1 true WO2005098838A1 (ja) | 2005-10-20 |
Family
ID=35125317
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/005316 WO2005098838A1 (ja) | 2004-04-09 | 2005-03-24 | 対物レンズ、光ヘッド、及び光ピックアップ装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7656774B2 (ja) |
JP (1) | JP4539651B2 (ja) |
WO (1) | WO2005098838A1 (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI413118B (zh) * | 2011-02-23 | 2013-10-21 | Univ Nat Chiao Tung | 光學讀寫頭 |
US9565996B2 (en) | 2013-01-18 | 2017-02-14 | Ricoh Company, Ltd. | Plenoptic otoscope |
US9439568B2 (en) | 2014-07-03 | 2016-09-13 | Align Technology, Inc. | Apparatus and method for measuring surface topography optically |
US9261358B2 (en) | 2014-07-03 | 2016-02-16 | Align Technology, Inc. | Chromatic confocal system |
WO2016193984A1 (en) * | 2015-06-05 | 2016-12-08 | Fresh Pond Ventures Llc | Medical optical examination instrument |
US10098529B2 (en) * | 2015-10-28 | 2018-10-16 | Ricoh Company, Ltd. | Optical design of a light field otoscope |
US20170119237A1 (en) * | 2015-10-28 | 2017-05-04 | Ricoh Company, Ltd. | Optical Design of a Light Field Otoscope |
WO2019171642A1 (ja) * | 2018-03-06 | 2019-09-12 | オリンパス株式会社 | 内視鏡光学系及び内視鏡装置 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59176715A (ja) * | 1983-03-26 | 1984-10-06 | Nippon Kogaku Kk <Nikon> | 対物レンズ |
JPS6091317A (ja) * | 1983-10-26 | 1985-05-22 | Nitto Kogaku Kk | 光デイスク用対物レンズ |
JPS63106713A (ja) * | 1986-10-24 | 1988-05-11 | Canon Inc | 光ピツクアツプ用の対物レンズ |
JPH06138384A (ja) * | 1992-10-26 | 1994-05-20 | Asahi Optical Co Ltd | 光記録・再生用レンズ |
JP2003084196A (ja) * | 2001-07-04 | 2003-03-19 | Konica Corp | 対物レンズ、光ピックアップ装置及び記録・再生装置 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5348537A (en) * | 1976-10-14 | 1978-05-02 | Olympus Optical Co Ltd | Microscope objective lens |
US4784478A (en) * | 1985-08-02 | 1988-11-15 | Olympus Optical Co., Ltd. | Microscope objective |
US5202867A (en) * | 1987-01-29 | 1993-04-13 | Canon Kabushiki Kaisha | Condensing optical system with corrected chromatic aberration, and information recording/reproducing apparatus using this optical system |
JPH02269303A (ja) * | 1989-04-11 | 1990-11-02 | Asahi Optical Co Ltd | 光ディスク用色収差補正レンズ |
JPH05307139A (ja) | 1992-04-28 | 1993-11-19 | Olympus Optical Co Ltd | 内視鏡対物レンズ |
JP3809270B2 (ja) | 1998-02-09 | 2006-08-16 | キヤノン株式会社 | 対物レンズ |
-
2005
- 2005-03-24 JP JP2006512002A patent/JP4539651B2/ja not_active Expired - Fee Related
- 2005-03-24 WO PCT/JP2005/005316 patent/WO2005098838A1/ja active Application Filing
- 2005-03-24 US US11/547,686 patent/US7656774B2/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59176715A (ja) * | 1983-03-26 | 1984-10-06 | Nippon Kogaku Kk <Nikon> | 対物レンズ |
JPS6091317A (ja) * | 1983-10-26 | 1985-05-22 | Nitto Kogaku Kk | 光デイスク用対物レンズ |
JPS63106713A (ja) * | 1986-10-24 | 1988-05-11 | Canon Inc | 光ピツクアツプ用の対物レンズ |
JPH06138384A (ja) * | 1992-10-26 | 1994-05-20 | Asahi Optical Co Ltd | 光記録・再生用レンズ |
JP2003084196A (ja) * | 2001-07-04 | 2003-03-19 | Konica Corp | 対物レンズ、光ピックアップ装置及び記録・再生装置 |
Also Published As
Publication number | Publication date |
---|---|
US20070211605A1 (en) | 2007-09-13 |
JPWO2005098838A1 (ja) | 2008-02-28 |
US7656774B2 (en) | 2010-02-02 |
JP4539651B2 (ja) | 2010-09-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP3932578B2 (ja) | 対物レンズ及び光学ピックアップ装置 | |
KR100653289B1 (ko) | 광학 헤드 및 기록 재생 장치 | |
JP4539651B2 (ja) | 対物レンズ、光ヘッド、及び光ピックアップ装置 | |
JP2003279851A (ja) | 高開口数単レンズおよびそれを用いた光ヘッド装置、光学情報記録再生装置 | |
JPWO2002027715A1 (ja) | 光ディスク用光学系、光ディスク用光ヘッド装置、及び光ドライブ装置 | |
JP2005156719A (ja) | 光ピックアップ装置用の対物レンズ、光ピックアップ装置及び光情報記録再生装置 | |
JP4817036B2 (ja) | 対物レンズ、光ピックアップ装置及び記録・再生装置 | |
JP2009277311A (ja) | 対物レンズ、光ピックアップ装置、光記録・再生装置 | |
JP4130938B2 (ja) | 光ピックアップ用対物光学系 | |
JPH10255303A (ja) | 光学ピックアップ及び光学ピックアップ用対物レンズの組み立て方法 | |
JP4513946B2 (ja) | 光ピックアップ装置用光学系、光ピックアップ装置及び光情報記録再生装置 | |
JPH09318873A (ja) | 色収差補正光学系および光ピックアップ | |
JP2001235678A (ja) | 対物レンズ、光学ピックアップ装置及び光ディスク装置 | |
JP4280896B2 (ja) | 光ピックアップ装置用光学系、光ピックアップ装置、光情報記録再生装置及び色収差補正素子 | |
JP2005317170A (ja) | 屈折対物光学系 | |
JP2006251494A (ja) | 対物レンズ及び光ピックアップ装置 | |
JP2004251924A (ja) | ビームエクスパンダー及びこれを用いた光ヘッド | |
JP2001083410A (ja) | 対物レンズ及びこの対物レンズを使用するピックアップ装置 | |
JP4722472B2 (ja) | 光ディスク用光学系 | |
JP2010281847A (ja) | 対物レンズ | |
EP1376186B1 (en) | Objective lens for optical pickup apparatus and recording/reproducing apparatus | |
JP4144267B2 (ja) | 収差補正光学素子及び光学ピックアップ装置 | |
JP4375107B2 (ja) | 光ピックアップ装置 | |
JP4648608B2 (ja) | 光情報記録再生ヘッド装置 | |
JP2008077693A (ja) | 対物レンズ及び光ピックアップ装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2006512002 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 11547686 Country of ref document: US Ref document number: 2007211605 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: DE |
|
122 | Ep: pct application non-entry in european phase | ||
WWP | Wipo information: published in national office |
Ref document number: 11547686 Country of ref document: US |