GB1396712A - Image testing device - Google Patents

Image testing device

Info

Publication number
GB1396712A
GB1396712A GB4938472A GB4938472A GB1396712A GB 1396712 A GB1396712 A GB 1396712A GB 4938472 A GB4938472 A GB 4938472A GB 4938472 A GB4938472 A GB 4938472A GB 1396712 A GB1396712 A GB 1396712A
Authority
GB
United Kingdom
Prior art keywords
grating
image
components
detectors
focusing
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
GB4938472A
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.)
Ernst Leitz Wetzlar GmbH
Original Assignee
Ernst Leitz Wetzlar GmbH
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
Priority claimed from DE2156617A external-priority patent/DE2156617C3/de
Priority claimed from DE19722201092 external-priority patent/DE2201092C3/de
Application filed by Ernst Leitz Wetzlar GmbH filed Critical Ernst Leitz Wetzlar GmbH
Publication of GB1396712A publication Critical patent/GB1396712A/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
    • G02B27/46—Systems using spatial filters
    • 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
    • G02B27/40—Optical focusing aids

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Eye Examination Apparatus (AREA)
GB4938472A 1971-11-15 1972-10-26 Image testing device Expired GB1396712A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2156617A DE2156617C3 (de) 1971-11-15 1971-11-15 Einrichtung zur Bestimmung der Lage der Ebene maximaler Amplitude einer Ortsfrequenz, beispielsweise bei einem Entfernungsmesser
DE19722201092 DE2201092C3 (de) 1972-01-11 1972-01-11 Einrichtung zur Bestimmung der relativen Lage der Ebene maximaler Amplitude einer Ortsfrequenz

Publications (1)

Publication Number Publication Date
GB1396712A true GB1396712A (en) 1975-06-04

Family

ID=25762020

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4938472A Expired GB1396712A (en) 1971-11-15 1972-10-26 Image testing device

Country Status (4)

Country Link
AT (1) AT349775B (enExample)
CH (1) CH553421A (enExample)
FR (1) FR2160399B1 (enExample)
GB (1) GB1396712A (enExample)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2426272A1 (fr) * 1978-05-18 1979-12-14 Siemens Ag Procede et dispositif pour realiser la mise au point automatique ou semi-automatique de l'image d'un objet dans un plan image
GB2123238A (en) * 1982-06-30 1984-01-25 Honeywell Inc An optical imaging system
GB2158317A (en) * 1984-05-02 1985-11-06 Zeiss Jena Veb Carl Automatic focusing
GB2239707A (en) * 1989-11-17 1991-07-10 Applied Magnetics Corp Flat plate focus sensing apparatus
US5568315A (en) * 1991-05-28 1996-10-22 Discovision Associates Optical beamsplitter
CN113188775A (zh) * 2021-07-02 2021-07-30 成都康拓兴业科技有限责任公司 一种航空防撞灯闪光频率测试仪

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2506531C2 (de) * 1974-02-19 1983-07-28 The Marconi Co. Ltd., Chelmsford, Essex Vorrichtung zur Entfernungsbestimmung
FR2442447A1 (fr) * 1978-11-22 1980-06-20 Hamel Bernard Procede et dispositif de mesure d'accelerations

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2426272A1 (fr) * 1978-05-18 1979-12-14 Siemens Ag Procede et dispositif pour realiser la mise au point automatique ou semi-automatique de l'image d'un objet dans un plan image
GB2123238A (en) * 1982-06-30 1984-01-25 Honeywell Inc An optical imaging system
GB2158317A (en) * 1984-05-02 1985-11-06 Zeiss Jena Veb Carl Automatic focusing
GB2239707A (en) * 1989-11-17 1991-07-10 Applied Magnetics Corp Flat plate focus sensing apparatus
US5568315A (en) * 1991-05-28 1996-10-22 Discovision Associates Optical beamsplitter
US5646778A (en) * 1991-05-28 1997-07-08 Discovision Associates Optical beamsplitter
US5650874A (en) * 1991-05-28 1997-07-22 Discovision Associates Optical beamsplitter
US5657164A (en) * 1991-05-28 1997-08-12 Discovision Associates Optical beamsplitter
US5771122A (en) 1991-05-28 1998-06-23 Discovision Associates Optical beamsplitter
CN113188775A (zh) * 2021-07-02 2021-07-30 成都康拓兴业科技有限责任公司 一种航空防撞灯闪光频率测试仪

Also Published As

Publication number Publication date
ATA905972A (de) 1978-09-15
FR2160399A1 (enExample) 1973-06-29
CH553421A (de) 1974-08-30
FR2160399B1 (enExample) 1979-04-27
AT349775B (de) 1979-04-25

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee