GB1343483A - Optical demodulation system - Google Patents

Optical demodulation system

Info

Publication number
GB1343483A
GB1343483A GB2173871A GB1343483DA GB1343483A GB 1343483 A GB1343483 A GB 1343483A GB 2173871 A GB2173871 A GB 2173871A GB 1343483D A GB1343483D A GB 1343483DA GB 1343483 A GB1343483 A GB 1343483A
Authority
GB
United Kingdom
Prior art keywords
receptor
diffracted
apertures
central aperture
diffraction order
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
Application number
GB2173871A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xerox Corp
Original Assignee
Xerox Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Xerox Corp filed Critical Xerox Corp
Publication of GB1343483A publication Critical patent/GB1343483A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G02B27/4238—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 in optical recording or readout devices
    • 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
    • G02B27/46—Systems using spatial filters
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G16/00—Electrographic processes using deformation of thermoplastic layers; Apparatus therefor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
GB2173871A 1970-02-13 1971-04-19 Optical demodulation system Expired GB1343483A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1125170A 1970-02-13 1970-02-13

Publications (1)

Publication Number Publication Date
GB1343483A true GB1343483A (en) 1974-01-10

Family

ID=21749530

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2173871A Expired GB1343483A (en) 1970-02-13 1971-04-19 Optical demodulation system

Country Status (8)

Country Link
US (1) US3687535A (enExample)
JP (1) JPS5289337A (enExample)
BE (1) BE762859A (enExample)
CA (1) CA961682A (enExample)
DE (1) DE2106274A1 (enExample)
FR (1) FR2078808A5 (enExample)
GB (1) GB1343483A (enExample)
NL (1) NL7101732A (enExample)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2449314A1 (fr) * 1979-02-13 1980-09-12 Thomson Csf Dispositif d'affichage electro-optique
FR2570518B1 (fr) * 1984-09-19 1987-03-20 Elf Aquitaine Procede et dispositif d'enregistrement d'une image sur un film thermoplastique
US5130213A (en) * 1989-08-07 1992-07-14 At&T Bell Laboratories Device manufacture involving lithographic processing
US5258246A (en) * 1989-08-07 1993-11-02 At&T Bell Laboratories Device manufacture involving lithographic processing
US5253236A (en) * 1991-10-03 1993-10-12 International Business Machines Corporation Optical beam focusing and tracking system for an optical disk information storage device
US6678085B2 (en) * 2002-06-12 2004-01-13 Eastman Kodak Company High-contrast display system with scanned conformal grating device
CN120938361A (zh) * 2025-10-14 2025-11-14 西南医科大学附属医院 一种基于数据反馈的康复评估系统及其方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3378633A (en) * 1965-06-24 1968-04-16 Stanford Research Inst Monochrome photography system for color television
US3493287A (en) * 1966-04-26 1970-02-03 Ibm Optical detour phase system
US3470310A (en) * 1966-05-23 1969-09-30 Rca Corp Color image display system utilizing a light valve
US3533340A (en) * 1967-06-19 1970-10-13 Stanford Research Inst Photographic coding-decoding system
US3536376A (en) * 1968-03-06 1970-10-27 Raytheon Co Optical modulation apparatus having a phase retarding spatial filter

Also Published As

Publication number Publication date
DE2106274A1 (de) 1971-08-26
NL7101732A (enExample) 1971-08-17
JPS5289337A (en) 1977-07-26
US3687535A (en) 1972-08-29
BE762859A (fr) 1971-08-12
CA961682A (en) 1975-01-28
FR2078808A5 (enExample) 1971-11-05

Similar Documents

Publication Publication Date Title
GB1330709A (en) Spatial filter
GB1488691A (en) Opto-electronic positioning-system
GB1335250A (en) Light beam switching arrangements
US3795768A (en) Holographic image scanner/recorder system
GB1163313A (en) Detection System for Coherent Light Beams
GB1138128A (en) Positioning systems
US3408143A (en) Storage and readout of multiple interlaced images
FR2312794A1 (fr) Appareil de balayage optique, notamment pour enregistrement d'image par faisceaux lumineux module
US4707077A (en) Real time image subtraction with a single liquid crystal light valve
GB1188976A (en) Information Storage.
GB1343483A (en) Optical demodulation system
US3603668A (en) Composite diffraction grating formed from superimposed aligned gratings
GB1313314A (en) Arrangement for the transmission of a beam of light modulated in accordance with data to be transmitted
GB1398150A (en) Method and device for recording superimposed holograms
GB1497714A (en) Optical image reconstruction apparatus
US3903360A (en) Reduction by polarization noise techniques
US2575742A (en) Device for copying records on a proportional scale
GB1535858A (en) Magnetic bubble display system
US3946433A (en) Phase image scanning method
GB1343024A (en) System for constructing a hologram using an optical grating
GB1378759A (en) Photo-electric automatic positioning device
GB1485584A (en) Property of relative displacement between diffraction gratings
ES411830A1 (es) Un sistema para la produccion de facsimiles.
Wieder et al. Electron beam writing of spatial filters
GB1290577A (enExample)

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees