BE832654A - Appareil optique - Google Patents

Appareil optique

Info

Publication number
BE832654A
BE832654A BE159384A BE159384A BE832654A BE 832654 A BE832654 A BE 832654A BE 159384 A BE159384 A BE 159384A BE 159384 A BE159384 A BE 159384A BE 832654 A BE832654 A BE 832654A
Authority
BE
Belgium
Prior art keywords
optical device
optical
Prior art date
Application number
BE159384A
Other languages
English (en)
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 filed Critical
Publication of BE832654A publication Critical patent/BE832654A/fr

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/28—Systems for automatic generation of focusing signals
    • G02B7/36—Systems for automatic generation of focusing signals using image sharpness techniques, e.g. image processing techniques for generating autofocus signals
    • G02B7/365—Systems for automatic generation of focusing signals using image sharpness techniques, e.g. image processing techniques for generating autofocus signals by analysis of the spatial frequency components of the image

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Automatic Focus Adjustment (AREA)
  • Focusing (AREA)
BE159384A 1974-08-27 1975-08-22 Appareil optique BE832654A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/500,869 US3941996A (en) 1974-08-27 1974-08-27 Automatic focus apparatus

Publications (1)

Publication Number Publication Date
BE832654A true BE832654A (fr) 1975-12-16

Family

ID=23991278

Family Applications (1)

Application Number Title Priority Date Filing Date
BE159384A BE832654A (fr) 1974-08-27 1975-08-22 Appareil optique

Country Status (6)

Country Link
US (1) US3941996A (fr)
JP (1) JPS5146935A (fr)
BE (1) BE832654A (fr)
CA (1) CA1039094A (fr)
FR (1) FR2283457A1 (fr)
GB (1) GB1500385A (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5172329A (en) * 1974-12-19 1976-06-23 Minolta Camera Kk Jidoshotenkenshutsusochi
US4132948A (en) * 1977-03-17 1979-01-02 Teradyne, Inc. Test fixture using stock printed circuit board having test pins mounted thereon
JPS5590934A (en) * 1978-12-29 1980-07-10 Nippon Kogaku Kk <Nikon> Operating device of camera having automatic focusing device
JPS5793307A (en) * 1980-12-02 1982-06-10 Olympus Optical Co Ltd Automatic focusing system
DD234340A3 (de) * 1984-05-02 1986-04-02 Zeiss Jena Veb Carl Automatische fokussiereinrichtung
IT1201256B (it) * 1985-03-19 1989-01-27 Consiglio Nazionale Ricerche Perfezionamento nei dispositivi per la messa a fuoco automatica dei sistemi ottici,in particolare microspopi e strumenti per l'acquisizione elettronica di immagini microscopiche
US5210565A (en) * 1991-06-21 1993-05-11 Eastman Kodak Company Oscillating pupil autofocus method and apparatus
US5648652A (en) * 1993-09-22 1997-07-15 Asahi Kogaku Kogyo Kabushiki Kaisha Optical focus evaluation and focus adjustment methods, focus evaluation and focus adjustment apparatus, and screen apparatus
US7800079B2 (en) * 2003-12-22 2010-09-21 Asml Netherlands B.V. Assembly for detection of radiation flux and contamination of an optical component, lithographic apparatus including such an assembly and device manufacturing method
CN103765868B (zh) 2011-06-03 2018-05-08 汤姆逊许可公司 一种微型投影仪及微型投影仪的操作方法
JP6392117B2 (ja) * 2011-06-03 2018-09-19 トムソン ライセンシングＴｈｏｍｓｏｎ Ｌｉｃｅｎｓｉｎｇ 小型プロジェクタおよびそれに適用される方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3555280A (en) * 1966-04-19 1971-01-12 Hycon Mfg Co Automatic focus sensor and control
US3541335A (en) * 1967-11-22 1970-11-17 Control Data Corp Radiation star detector with coded optical scanner
US3538334A (en) * 1968-01-24 1970-11-03 Hycon Mfg Co Automatic focusing device with a photosensitive error detector
US3700902A (en) * 1971-01-13 1972-10-24 Itek Corp Optical information processing using variable electro-optic spatial filter

Also Published As

Publication number Publication date
JPS5146935A (en) 1976-04-22
FR2283457A1 (fr) 1976-03-26
GB1500385A (en) 1978-02-08
US3941996A (en) 1976-03-02
CA1039094A (fr) 1978-09-26

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