FR2257915A1 - - Google Patents
Info
- Publication number
- FR2257915A1 FR2257915A1 FR7500778A FR7500778A FR2257915A1 FR 2257915 A1 FR2257915 A1 FR 2257915A1 FR 7500778 A FR7500778 A FR 7500778A FR 7500778 A FR7500778 A FR 7500778A FR 2257915 A1 FR2257915 A1 FR 2257915A1
- Authority
- FR
- France
- 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
Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/42—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect
- G02B27/4233—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having a diffractive element [DOE] contributing to a non-imaging application
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
- G02B26/0808—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more diffracting elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/42—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect
- G02B27/4272—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having plural diffractive elements positioned sequentially along the optical path
- G02B27/4277—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having plural diffractive elements positioned sequentially along the optical path being separated by an air space
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/29—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the position or the direction of light beams, i.e. deflection
- G02F1/33—Acousto-optical deflection devices
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Measurement Of Optical Distance (AREA)
- Instruments For Measurement Of Length By Optical Means (AREA)
- Optical Transform (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2401476A DE2401476A1 (de) | 1974-01-12 | 1974-01-12 | Anordnung zur modulation von licht |
| DE2431551A DE2431551C2 (de) | 1974-07-01 | 1974-07-01 | Anordnung zur Messung von Bewegungen und Geschwindigkeiten |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2257915A1 true FR2257915A1 (ru) | 1975-08-08 |
| FR2257915B1 FR2257915B1 (ru) | 1979-07-20 |
Family
ID=25766457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7500778A Expired FR2257915B1 (ru) | 1974-01-12 | 1975-01-10 |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS5845687B2 (ru) |
| CH (1) | CH601799A5 (ru) |
| FR (1) | FR2257915B1 (ru) |
| GB (1) | GB1474049A (ru) |
| NL (1) | NL7500316A (ru) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2552895A1 (fr) * | 1983-10-03 | 1985-04-05 | Hutchin Richard | Microscope pour l'obtention d'images de haute resolution sans optique de precision |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57157118A (en) * | 1981-03-24 | 1982-09-28 | Mitsutoyo Mfg Co Ltd | Photoelectric type displacement detecting device |
| GB8320629D0 (en) * | 1983-07-30 | 1983-09-01 | Pa Consulting Services | Displacement measuring apparatus |
| GB8413955D0 (en) * | 1984-05-31 | 1984-07-04 | Pa Consulting Services | Displacement measuring apparatus |
| DE3706277C2 (de) * | 1986-02-28 | 1995-04-27 | Canon Kk | Drehungsmeßgeber |
| DE3633574A1 (de) * | 1986-10-02 | 1988-04-14 | Heidenhain Gmbh Dr Johannes | Lichtelektrische winkelmesseinrichtung |
| GB8729246D0 (en) * | 1987-12-15 | 1988-01-27 | Renishaw Plc | Opto-electronic scale-reading apparatus |
| DE3938639A1 (de) * | 1988-11-21 | 1990-05-23 | Ricoh Kk | Optische aufzeichnungs-/wiedergabeeinrichtung |
| GB2239088B (en) * | 1989-11-24 | 1994-05-25 | Ricoh Kk | Optical movement measuring method and apparatus |
| DE59004252D1 (de) * | 1990-10-20 | 1994-02-24 | Heidenhain Gmbh Dr Johannes | Interferentielle Messeinrichtung für wenigstens eine Messrichtung. |
| AT395914B (de) * | 1991-04-18 | 1993-04-26 | Rsf Elektronik Gmbh | Photoelektrische positionsmesseinrichtung |
| DE69325799T2 (de) * | 1992-05-05 | 2000-04-13 | Microe, Inc. | Apparat zum detektieren einer relativen bewegung |
| US5486923A (en) * | 1992-05-05 | 1996-01-23 | Microe | Apparatus for detecting relative movement wherein a detecting means is positioned in the region of natural interference |
| JPH0727543A (ja) * | 1993-07-12 | 1995-01-27 | Canon Inc | 光学式変位センサー |
| JP3028716B2 (ja) * | 1993-09-29 | 2000-04-04 | キヤノン株式会社 | 光学式変位センサ |
| GB9424969D0 (en) * | 1994-12-10 | 1995-02-08 | Renishaw Plc | Opto-electronic scale reading apparatus |
| GB0004120D0 (en) | 2000-02-23 | 2000-04-12 | Renishaw Plc | Opto-electronic scale reading apparatus |
| CN110530283A (zh) * | 2018-05-23 | 2019-12-03 | 宁波舜宇光电信息有限公司 | 结构光投射装置以及其制造方法 |
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1974
- 1974-12-19 GB GB5487974A patent/GB1474049A/en not_active Expired
- 1974-12-19 CH CH1694574A patent/CH601799A5/xx not_active IP Right Cessation
-
1975
- 1975-01-08 JP JP451175A patent/JPS5845687B2/ja not_active Expired
- 1975-01-10 NL NL7500316A patent/NL7500316A/xx unknown
- 1975-01-10 FR FR7500778A patent/FR2257915B1/fr not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2552895A1 (fr) * | 1983-10-03 | 1985-04-05 | Hutchin Richard | Microscope pour l'obtention d'images de haute resolution sans optique de precision |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS50104037A (ru) | 1975-08-16 |
| JPS5845687B2 (ja) | 1983-10-12 |
| CH601799A5 (ru) | 1978-07-14 |
| FR2257915B1 (ru) | 1979-07-20 |
| NL7500316A (nl) | 1975-07-15 |
| GB1474049A (en) | 1977-05-18 |