CA2544600A1 - Proximity detector - Google Patents
Proximity detector Download PDFInfo
- Publication number
- CA2544600A1 CA2544600A1 CA002544600A CA2544600A CA2544600A1 CA 2544600 A1 CA2544600 A1 CA 2544600A1 CA 002544600 A CA002544600 A CA 002544600A CA 2544600 A CA2544600 A CA 2544600A CA 2544600 A1 CA2544600 A1 CA 2544600A1
- Authority
- CA
- Canada
- Prior art keywords
- light
- light source
- proximity
- reference object
- target object
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 claims abstract 5
- 239000004020 conductor Substances 0.000 claims 1
- 238000001514 detection method Methods 0.000 claims 1
- 230000002452 interceptive effect Effects 0.000 claims 1
- 230000001360 synchronised effect Effects 0.000 claims 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/02—Details
- G01J1/04—Optical or mechanical part supplementary adjustable parts
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/14—Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/026—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness by measuring distance between sensor and object
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C3/00—Measuring distances in line of sight; Optical rangefinders
- G01C3/02—Details
- G01C3/06—Use of electric means to obtain final indication
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/04—Systems determining the presence of a target
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/481—Constructional features, e.g. arrangements of optical elements
- G01S7/4811—Constructional features, e.g. arrangements of optical elements common to transmitter and receiver
Abstract
Apparatus for detecting proximity between a first object (target object) and a second object (reference object), comprising a light source (1) and a light detector (3) adapted to receive resulting back-scattered light from the reference object when illuminated from the light source (1), whereby the intensity of hack~scattered light to the light detector (3) is utilized as a measure of said proximity. The target object (2) comprises an optical device (4) having a focal plane (7) and being adapted to be illuminated by the light source (1). The axes of the light rays from the light source (1) and the back-scattering to the light detector (3) have mutually closely adjacent and substantially parallel or coincident portions. Said proximity corresponds to a distance (relative position) between the target object (2) and the reference object (6, 8) wherein the reference object is located substantially at the focal plane.
Claims (12)
1. Apparatus for detecting proximity between a first object (target object) and a second object (reference object), comprising a light source (1) and a light detector (3) adapted to receive resulting back-scattered light from the reference object when illuminated from the light source (1), whereby the intensity of back-scattered light to the light detector (3) is utilized as a measure of said proximity, characterized in that the target object (2) comprises an optical device (4) having a focal plane (7) and being adapted to be illuminated by the light source (1), that the axes of the light rays from the light source (1) and the back-scattering to the light detector (3) have mutually closely adjacent and substantially parallel or coincident portions, and that said proximity corresponds to a spacing (relative position) between the target object (2) and the reference object (6,8) wherein the reference object is located substantially at the focal plane.
2. Apparatus according to claim 1, wherein the light source (1) and/or the light detector (3) are/is located on the target object (2).
3. Apparatus according to claim 1 or 2, wherein said axes outside said portions have deviating directions, such as by using mirrors, optical fibres or light conductors.
4. Apparatus according to claims 1, 2 or 3, wherein the light source (1) is adapted to emit modulated or possibly pulsed light, and the light detector (3) is synchronized with such modulation or pulsing.
5. Apparatus according to any one of claims 1-4, wherein the light detector comprises a camera (3).
6. Apparatus according to any one of claims 1-5, wherein the optical device (4) has at least two focal planes for determination of said proximity in at least two relative positions of the target object (2) and the reference object (6, 8).
7. Apparatus according to any one of claims 1-6, wherein the intensity of back-scattered light to the light detector (3) is compared with a predetermined and preferably adjustable level, for detection of said proximity.
8. Apparatus according to any one of claims 1-7, wherein the light source (1) and the light detector (3) are located separately in relation to one another.
9. Apparatus according to any one of claims 1-8, wherein the light source consists of a data projector (Fig. 2).
10. Drawing, writing and/or pointing tool for data presentation, computer-supported work or interactive operations with a computer, wherein an apparatus according to any one of claims 1-9 is incorporated in the tool.
11. Apparatus for detecting proximity between a first object (target object) and a second object (reference object), comprising a light source (1) and a receiver for resulting back-scattered light from the reference object when illuminated from the light source (1), whereby the intensity of back-scattered light to the receiver is utilized as a measure of said proximity, characterized in that the target object (2) comprises an optical device (4) having a focal plane (7) and being adapted to be illuminated by the light source (1), that the axes of the light rays from the light source (1) and back-scattering to the receiver have mutually closely adjacent and substantially parallel or coincident portions, that said proximity corresponds to a distance (relative position) between the target object (2) and the reference object (6,8) wherein the reference object is located substantially at the focal plane, and that the receiver is adapted to cooperate with an eye belonging to a user of the apparatus.
12. Apparatus according to claim 11, wherein the light source consists of a data projector.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO20035142 | 2003-11-19 | ||
NO20035142A NO320062B1 (en) | 2003-11-19 | 2003-11-19 | Device for detecting proximity between a first object (template object) and another object (reference object), as well as drawing, writing and / or pointing tools for data presentation etc. |
PCT/NO2004/000347 WO2005050130A1 (en) | 2003-11-19 | 2004-11-12 | Proximity detector |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2544600A1 true CA2544600A1 (en) | 2005-06-02 |
CA2544600C CA2544600C (en) | 2011-09-13 |
Family
ID=30439575
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2544600A Expired - Fee Related CA2544600C (en) | 2003-11-19 | 2004-11-12 | Proximity detector |
Country Status (9)
Country | Link |
---|---|
US (1) | US7339684B2 (en) |
EP (2) | EP1692459B1 (en) |
JP (2) | JP4832311B2 (en) |
KR (1) | KR101109966B1 (en) |
CN (1) | CN100437025C (en) |
AU (1) | AU2004291813B2 (en) |
CA (1) | CA2544600C (en) |
NO (1) | NO320062B1 (en) |
WO (1) | WO2005050130A1 (en) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8494805B2 (en) | 2005-11-28 | 2013-07-23 | Orthosensor | Method and system for assessing orthopedic alignment using tracking sensors |
US8169404B1 (en) | 2006-08-15 | 2012-05-01 | Navisense | Method and device for planary sensory detection |
US7978091B2 (en) * | 2006-08-24 | 2011-07-12 | Navisense | Method and device for a touchless interface |
US8421642B1 (en) | 2006-08-24 | 2013-04-16 | Navisense | System and method for sensorized user interface |
US7961173B2 (en) * | 2006-09-05 | 2011-06-14 | Navisense | Method and apparatus for touchless calibration |
US8316324B2 (en) * | 2006-09-05 | 2012-11-20 | Navisense | Method and apparatus for touchless control of a device |
US8354997B2 (en) * | 2006-10-31 | 2013-01-15 | Navisense | Touchless user interface for a mobile device |
US8904312B2 (en) * | 2006-11-09 | 2014-12-02 | Navisense | Method and device for touchless signing and recognition |
US8793621B2 (en) * | 2006-11-09 | 2014-07-29 | Navisense | Method and device to control touchless recognition |
US8060841B2 (en) * | 2007-03-19 | 2011-11-15 | Navisense | Method and device for touchless media searching |
US20080252595A1 (en) * | 2007-04-11 | 2008-10-16 | Marc Boillot | Method and Device for Virtual Navigation and Voice Processing |
US20080284726A1 (en) * | 2007-05-17 | 2008-11-20 | Marc Boillot | System and Method for Sensory Based Media Control |
KR101624753B1 (en) * | 2008-01-09 | 2016-05-26 | 어레이 바이오파마 인크. | Hydroxylated pyrimidyl cyclopentanes as akt protein kinase inhibitors |
US9189083B2 (en) | 2008-03-18 | 2015-11-17 | Orthosensor Inc. | Method and system for media presentation during operative workflow |
US8324602B2 (en) * | 2009-04-14 | 2012-12-04 | Intersil Americas Inc. | Optical sensors that reduce specular reflections |
US8258453B2 (en) * | 2009-04-29 | 2012-09-04 | Intersil Americas Inc. | Long range proximity and/or motion detector with ambient light detection capabilities |
US9011448B2 (en) * | 2009-12-31 | 2015-04-21 | Orthosensor Inc. | Orthopedic navigation system with sensorized devices |
GB2487043B (en) | 2010-12-14 | 2013-08-14 | Epson Norway Res And Dev As | Camera-based multi-touch interaction and illumination system and method |
US8639400B1 (en) | 2012-09-26 | 2014-01-28 | Silverlit Limited | Altitude control of an indoor flying toy |
CN104122541B (en) | 2013-04-28 | 2016-08-17 | 意法半导体研发(深圳)有限公司 | There is proximity detector equipment and the correlation technique of interconnection layer |
US10198647B2 (en) * | 2015-09-25 | 2019-02-05 | Datalogic IP Tech, S.r.l. | Compact imaging module with range finder |
CN105433983B (en) * | 2015-12-15 | 2019-01-22 | 北京汇影互联科技有限公司 | A kind of ultrasonic diagnostic equipment and the method for switching ultrasonic probe working condition |
JP6629118B2 (en) * | 2016-03-30 | 2020-01-15 | 三菱重工業株式会社 | Optical sensor and rotating machine |
US11073615B2 (en) * | 2018-08-20 | 2021-07-27 | Lite-On Singapore Pte. Ltd. | Proximity sensor module with two sensors |
US20200100204A1 (en) * | 2018-09-21 | 2020-03-26 | Honeywell International Inc. | Location tracker |
US11872088B2 (en) | 2020-01-31 | 2024-01-16 | American Sterilizer Company | Proximity detection for a surgical light |
Family Cites Families (32)
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DE2448898C1 (en) | 1974-10-15 | 1998-05-14 | Telefunken Systemtechnik | Radar or laser based proximity detonator for shell or rocket |
DE3235028A1 (en) | 1982-09-22 | 1984-03-22 | Josef 3150 Peine Teichmann | Proximity switching device |
US4991509A (en) | 1983-06-24 | 1991-02-12 | The United States Of America As Represented By The Secretary Of The Navy | Optical proximity detector |
DE3338807C2 (en) * | 1983-10-26 | 1989-02-02 | Klaus Hermle | Optoelectronic proximity switch |
FR2560377B1 (en) * | 1984-02-29 | 1988-05-13 | Commissariat Energie Atomique | OPTICAL DEVICE FOR MEASURING SURFACE PROXIMITY AND ITS APPLICATION TO MEASURING A SURFACE PROFILE |
US4752799A (en) * | 1986-07-07 | 1988-06-21 | Honeywell Inc. | Optical proximity sensing optics |
JPS63259521A (en) * | 1987-04-16 | 1988-10-26 | Olympus Optical Co Ltd | Composite type focusing detection device |
DE4013743A1 (en) * | 1990-04-28 | 1991-11-07 | Klaschka Ind Elektronik | Optical proximity switch - uses cylinder-mounted prism with axially-symmetrical faces to provide high precision adjustment |
CN2070442U (en) * | 1990-08-12 | 1991-01-30 | 广西师范大学秀峰电器厂 | Non-contact photoelectric tracer |
JPH04100015A (en) * | 1990-08-20 | 1992-04-02 | Toshiba Corp | Light projection device and photoscanning device |
EP0484565A1 (en) | 1990-11-05 | 1992-05-13 | Siemens Aktiengesellschaft | Integral local mode control for ultrasound proximity switches |
FI91999C (en) | 1991-05-03 | 1994-09-12 | Valtion Teknillinen | Device for locating an object and a light transmitter |
US5200604A (en) | 1991-08-07 | 1993-04-06 | Laser Engineering, Inc. | Handpiece optical proximity detector for disabling surgical laser beam |
JP2511391B2 (en) * | 1991-12-04 | 1996-06-26 | シーメンス アクチエンゲゼルシヤフト | Optical distance sensor |
JPH06260393A (en) * | 1993-03-09 | 1994-09-16 | Hitachi Ltd | Positioning device |
US5504345A (en) * | 1994-04-14 | 1996-04-02 | Hama Laboratories, Inc. | Dual beam sensor and edge detection system and method |
JP3461566B2 (en) * | 1994-05-25 | 2003-10-27 | 富士写真光機株式会社 | Interferometer for measuring cone shape |
JPH09304684A (en) * | 1996-05-15 | 1997-11-28 | Citizen Watch Co Ltd | Converging type autofocusing method |
JP3507262B2 (en) * | 1996-08-30 | 2004-03-15 | 松下電器産業株式会社 | Surface inspection equipment |
US6127821A (en) | 1997-06-02 | 2000-10-03 | The Cherry Corporation | System for adjusting a magnetic sensor to detect the presence of ferrous objects |
JP3299144B2 (en) * | 1997-07-10 | 2002-07-08 | 住友重機械工業株式会社 | Position detecting apparatus and position detecting method applied to proximity exposure |
JPH11192573A (en) * | 1998-01-08 | 1999-07-21 | Nissan Motor Co Ltd | Laser beam machine and processing method |
JP3653419B2 (en) * | 1998-06-26 | 2005-05-25 | 松下電器産業株式会社 | projector |
JP2000241874A (en) * | 1999-02-19 | 2000-09-08 | Nec Corp | Method and device for automatically adjusting screen position for projector |
US6114950A (en) | 1999-05-03 | 2000-09-05 | Specam Technologies, Inc. | Obstacle proximity warning device for vehicles |
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NO311740B1 (en) | 2000-09-11 | 2002-01-14 | Tormod Njoelstad | Drawing, writing and pointing tools for computer-based presentations and office work |
JP2002123953A (en) * | 2000-10-12 | 2002-04-26 | Hitachi Ltd | High density optical recorder |
KR20010044477A (en) * | 2001-02-24 | 2001-06-05 | 최원하 | Apparatus and Method for mearsuring a distance using LASER |
DE10141544A1 (en) * | 2001-08-24 | 2003-03-13 | Eppendorf Ag | Liquid treatment device and method for operating the device |
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-
2003
- 2003-11-19 NO NO20035142A patent/NO320062B1/en not_active IP Right Cessation
-
2004
- 2004-11-12 CA CA2544600A patent/CA2544600C/en not_active Expired - Fee Related
- 2004-11-12 JP JP2006541064A patent/JP4832311B2/en not_active Expired - Fee Related
- 2004-11-12 CN CNB2004800341744A patent/CN100437025C/en not_active Expired - Fee Related
- 2004-11-12 WO PCT/NO2004/000347 patent/WO2005050130A1/en active Application Filing
- 2004-11-12 AU AU2004291813A patent/AU2004291813B2/en not_active Ceased
- 2004-11-12 KR KR1020067008598A patent/KR101109966B1/en not_active IP Right Cessation
- 2004-11-12 EP EP04800195.2A patent/EP1692459B1/en not_active Expired - Fee Related
- 2004-11-12 EP EP12155191A patent/EP2472218A1/en not_active Withdrawn
- 2004-11-12 US US10/579,334 patent/US7339684B2/en not_active Expired - Fee Related
-
2011
- 2011-04-19 JP JP2011093177A patent/JP5461470B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
AU2004291813B2 (en) | 2009-05-14 |
JP2011141296A (en) | 2011-07-21 |
JP5461470B2 (en) | 2014-04-02 |
US20070127039A1 (en) | 2007-06-07 |
NO20035142D0 (en) | 2003-11-19 |
AU2004291813A1 (en) | 2005-06-02 |
EP1692459B1 (en) | 2017-03-15 |
WO2005050130A1 (en) | 2005-06-02 |
CA2544600C (en) | 2011-09-13 |
CN100437025C (en) | 2008-11-26 |
JP2007514144A (en) | 2007-05-31 |
KR101109966B1 (en) | 2012-02-24 |
CN1882820A (en) | 2006-12-20 |
NO20035142L (en) | 2005-05-20 |
NO320062B1 (en) | 2005-10-17 |
US7339684B2 (en) | 2008-03-04 |
KR20060111482A (en) | 2006-10-27 |
EP2472218A1 (en) | 2012-07-04 |
EP1692459A1 (en) | 2006-08-23 |
JP4832311B2 (en) | 2011-12-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |
Effective date: 20181113 |