FR2160399A1 - - Google Patents

Info

Publication number
FR2160399A1
FR2160399A1 FR7239003A FR7239003A FR2160399A1 FR 2160399 A1 FR2160399 A1 FR 2160399A1 FR 7239003 A FR7239003 A FR 7239003A FR 7239003 A FR7239003 A FR 7239003A FR 2160399 A1 FR2160399 A1 FR 2160399A1
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
Application number
FR7239003A
Other languages
French (fr)
Other versions
FR2160399B1 (enExample
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 FR2160399A1 publication Critical patent/FR2160399A1/fr
Application granted granted Critical
Publication of FR2160399B1 publication Critical patent/FR2160399B1/fr
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)
FR7239003A 1971-11-15 1972-11-03 Expired FR2160399B1 (enExample)

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 (2)

Publication Number Publication Date
FR2160399A1 true FR2160399A1 (enExample) 1973-06-29
FR2160399B1 FR2160399B1 (enExample) 1979-04-27

Family

ID=25762020

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7239003A Expired FR2160399B1 (enExample) 1971-11-15 1972-11-03

Country Status (4)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2442447A1 (fr) * 1978-11-22 1980-06-20 Hamel Bernard Procede et dispositif de mesure d'accelerations
FR2479975A1 (fr) * 1974-02-19 1981-10-09 Marconi Co Ltd Telemetre perfectionne fonctionnant dans l'infrarouge

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2821722C2 (de) * 1978-05-18 1981-09-17 Siemens AG, 1000 Berlin und 8000 München Einrichtung zur automatischen oder halbautomatischen Scharfeinstellung der Abbildung eines Gegenstandes auf eine Bildebene
US4474446A (en) * 1982-06-30 1984-10-02 Honeywell Inc. Focal sensor having optical low pass filter
DD234340A3 (de) * 1984-05-02 1986-04-02 Zeiss Jena Veb Carl Automatische fokussiereinrichtung
US4998011A (en) * 1989-11-17 1991-03-05 Applied Magnetics Corporation Flat plate focus sensing apparatus
US5657164A (en) 1991-05-28 1997-08-12 Discovision Associates Optical beamsplitter
CN113188775B (zh) * 2021-07-02 2022-02-01 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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2479975A1 (fr) * 1974-02-19 1981-10-09 Marconi Co Ltd Telemetre perfectionne fonctionnant dans l'infrarouge
FR2442447A1 (fr) * 1978-11-22 1980-06-20 Hamel Bernard Procede et dispositif de mesure d'accelerations

Also Published As

Publication number Publication date
ATA905972A (de) 1978-09-15
AT349775B (de) 1979-04-25
CH553421A (de) 1974-08-30
FR2160399B1 (enExample) 1979-04-27
GB1396712A (en) 1975-06-04

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Legal Events

Date Code Title Description
ST Notification of lapse