ES2196397T3 - Red de paso variable para sistema de telemetria por difraccion. - Google Patents
Red de paso variable para sistema de telemetria por difraccion.Info
- Publication number
- ES2196397T3 ES2196397T3 ES97955059T ES97955059T ES2196397T3 ES 2196397 T3 ES2196397 T3 ES 2196397T3 ES 97955059 T ES97955059 T ES 97955059T ES 97955059 T ES97955059 T ES 97955059T ES 2196397 T3 ES2196397 T3 ES 2196397T3
- Authority
- ES
- Spain
- Prior art keywords
- diffaction
- reticle
- receiver
- telemetry system
- variable step
- 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.)
- Expired - Lifetime
Links
Classifications
-
- 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
- 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
- G01S11/00—Systems for determining distance or velocity not using reflection or reradiation
- G01S11/12—Systems for determining distance or velocity not using reflection or reradiation using electromagnetic waves other than radio waves
-
- 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
- G01S17/06—Systems determining position data of a target
- G01S17/08—Systems determining position data of a target for measuring distance only
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/18—Diffraction gratings
- G02B5/1828—Diffraction gratings having means for producing variable diffraction
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/18—Diffraction gratings
- G02B5/1866—Transmission gratings characterised by their structure, e.g. step profile, contours of substrate or grooves, pitch variations, materials
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Optics & Photonics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Measurement Of Optical Distance (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Electron Beam Exposure (AREA)
Abstract
SE DESCRIBE UN MEDIO PARA CONTRARESTAR LA REDUCCION DE PERSPECTIVA EN EL RECEPTOR DE UN TELEMETRO DE DIFRACCION UTILIZANDO UN RETICULO DE DIFRACCION DE PITIDOS. EN UN TELEMETRO DE DIFRACCION, UN RETICULO DE DIFRACCION CON VARIACIONES DE PASO DE MANERA QUE EL DESPLAZAMIENTO DE IMAGENES DE DIFRACCION DE ORDEN SUPERIOR EN UN RECEPTOR (200) ESTAN SEPARADAS DE SU IMAGEN DE ORDEN 0 ASOCIADA EN UN DESPLAZAMIENTO ARBITRARIO CON RESPECTO A UNA DISTANCIA DE BLANCO O ARBITRARIA. SE DESCRIBE UN SISTEMA PARA MEDIR LA DISTANCIA DE UN BLANCO QUE COMPRENDE UN RETICULO DE PASO VARIABLE (122) Y UN RECEPTOR (200) DE LAS IMAGENES DE DIFRACCION FORMADAS POR EL RETICULO.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US3411296P | 1996-12-30 | 1996-12-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2196397T3 true ES2196397T3 (es) | 2003-12-16 |
Family
ID=21874378
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES97955059T Expired - Lifetime ES2196397T3 (es) | 1996-12-30 | 1997-12-29 | Red de paso variable para sistema de telemetria por difraccion. |
Country Status (7)
Country | Link |
---|---|
US (1) | US6490028B1 (es) |
EP (1) | EP0963541B1 (es) |
JP (1) | JP3902796B2 (es) |
CA (1) | CA2277211C (es) |
DE (1) | DE69723110T2 (es) |
ES (1) | ES2196397T3 (es) |
WO (1) | WO1999044013A1 (es) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6603561B2 (en) | 2001-02-20 | 2003-08-05 | Thomas D. Ditto | Chromatic diffraction range finder |
US20030002043A1 (en) | 2001-04-10 | 2003-01-02 | Kla-Tencor Corporation | Periodic patterns and technique to control misalignment |
US20060056028A1 (en) * | 2004-09-13 | 2006-03-16 | Wildnauer Kenneth R | Apodized diffraction grating with improved dynamic range |
CA2613993C (en) * | 2005-07-13 | 2014-06-17 | Venkata Guruprasad | Distance-dependent spectra with uniform sampling spectrometry |
US8520191B2 (en) * | 2008-09-05 | 2013-08-27 | 3Dewitt, Llc | Slit aperture for diffraction range finding system |
US20100110445A1 (en) * | 2008-09-05 | 2010-05-06 | 3Dewitt, Llc | Slit aperture for diffraction range finding system and method for using the slit aperture to form a focused image |
TW201115183A (en) * | 2009-10-20 | 2011-05-01 | Ind Tech Res Inst | Stereovision system and calculation method for the distance between object and diffractive optical element |
TW201132932A (en) * | 2010-03-26 | 2011-10-01 | Ind Tech Res Inst | Adjustable range finder and the method thereof |
CN102221340A (zh) * | 2010-04-19 | 2011-10-19 | 财团法人工业技术研究院 | 可调式影像判距装置及方法 |
JP5833546B2 (ja) * | 2010-11-09 | 2015-12-16 | パナソニック株式会社 | 距離計測装置および距離計測方法 |
CN106104318B (zh) * | 2014-04-09 | 2019-05-03 | 拉姆伯斯公司 | 低功率图像改变检测器 |
JP2016150081A (ja) * | 2015-02-17 | 2016-08-22 | ソニー株式会社 | 光学ユニット、測定システムおよび測定方法 |
GB201610647D0 (en) | 2016-06-17 | 2016-08-03 | Univ York | Improved sensor and associated methods |
US10021372B2 (en) * | 2016-09-16 | 2018-07-10 | Qualcomm Incorporated | Systems and methods for improved depth sensing |
CN110118971B (zh) * | 2019-04-26 | 2020-12-18 | 华中科技大学 | 基于光栅多级衍射ccd分段复用的激光三角测距装置及方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4678324A (en) * | 1985-12-04 | 1987-07-07 | Thomas De Witt | Range finding by diffraction |
JP2619566B2 (ja) * | 1990-11-20 | 1997-06-11 | オ−クマ株式会社 | 光学式位置検出器 |
US5227625A (en) * | 1992-09-16 | 1993-07-13 | International Business Machines Corporation | Retro-reflective variable-pitch diffraction grating for use in a rotary actuator disk file |
US5422723A (en) * | 1992-09-21 | 1995-06-06 | Texas Instruments Incorporated | Diffraction gratings for submicron linewidth measurement |
US5349183A (en) * | 1993-07-12 | 1994-09-20 | Rockwell International Corporation | Diffraction grating rotary speed sensor having a circumferentially variable pitch diffraction grating |
-
1997
- 1997-12-29 JP JP53250099A patent/JP3902796B2/ja not_active Expired - Fee Related
- 1997-12-29 EP EP97955059A patent/EP0963541B1/en not_active Expired - Lifetime
- 1997-12-29 DE DE69723110T patent/DE69723110T2/de not_active Expired - Lifetime
- 1997-12-29 ES ES97955059T patent/ES2196397T3/es not_active Expired - Lifetime
- 1997-12-29 US US09/331,348 patent/US6490028B1/en not_active Expired - Fee Related
- 1997-12-29 WO PCT/US1997/023841 patent/WO1999044013A1/en active IP Right Grant
- 1997-12-29 CA CA002277211A patent/CA2277211C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE69723110D1 (de) | 2003-07-31 |
EP0963541B1 (en) | 2003-06-25 |
EP0963541A1 (en) | 1999-12-15 |
DE69723110T2 (de) | 2004-05-06 |
CA2277211C (en) | 2008-10-07 |
JP3902796B2 (ja) | 2007-04-11 |
JP2001513899A (ja) | 2001-09-04 |
US6490028B1 (en) | 2002-12-03 |
WO1999044013A1 (en) | 1999-09-02 |
CA2277211A1 (en) | 1999-09-02 |
EP0963541A4 (en) | 2001-07-25 |
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