CH608109A5 - Method and device for automatically focusing an optical instrument having a scanning grid - Google Patents

Method and device for automatically focusing an optical instrument having a scanning grid

Info

Publication number
CH608109A5
CH608109A5 CH736976A CH736976A CH608109A5 CH 608109 A5 CH608109 A5 CH 608109A5 CH 736976 A CH736976 A CH 736976A CH 736976 A CH736976 A CH 736976A CH 608109 A5 CH608109 A5 CH 608109A5
Authority
CH
Switzerland
Prior art keywords
optical instrument
automatically focusing
scanning grid
grid
scanning
Prior art date
Application number
CH736976A
Inventor
Werner Dr Holle
Walter Dipl Ing Bletz
Horst Dr Hartmann
Original Assignee
Leitz Ernst 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 DE19752528441 external-priority patent/DE2528441C2/en
Priority claimed from DE2528515A external-priority patent/DE2528515C3/en
Application filed by Leitz Ernst Gmbh filed Critical Leitz Ernst Gmbh
Publication of CH608109A5 publication Critical patent/CH608109A5/en

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
    • G02B7/34—Systems for automatic generation of focusing signals using different areas in a pupil plane

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Automatic Focus Adjustment (AREA)
  • Focusing (AREA)
  • Eye Examination Apparatus (AREA)
CH736976A 1975-06-26 1976-06-10 Method and device for automatically focusing an optical instrument having a scanning grid CH608109A5 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19752528441 DE2528441C2 (en) 1975-06-26 1975-06-26 Device for focusing the lens in a photographic camera
DE2528515A DE2528515C3 (en) 1975-06-26 1975-06-26 Method and device for the automatic focusing of an optical device with a scanning grating

Publications (1)

Publication Number Publication Date
CH608109A5 true CH608109A5 (en) 1978-12-15

Family

ID=25769072

Family Applications (1)

Application Number Title Priority Date Filing Date
CH736976A CH608109A5 (en) 1975-06-26 1976-06-10 Method and device for automatically focusing an optical instrument having a scanning grid

Country Status (3)

Country Link
JP (1) JPS6032846B2 (en)
CH (1) CH608109A5 (en)
FR (1) FR2315706A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59164514A (en) * 1983-03-10 1984-09-17 Nippon Kogaku Kk <Nikon> Focusing device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1472454A (en) * 1973-06-18 1977-05-04 Leitz Ernst Gmbh Method for determining the position of a focussing plane
DE2334181A1 (en) * 1973-07-05 1975-01-23 Leitz Ernst Gmbh Automatic focussing system for projector - uses oscillating optical grating in front of photocells

Also Published As

Publication number Publication date
JPS525521A (en) 1977-01-17
FR2315706B1 (en) 1980-09-12
FR2315706A1 (en) 1977-01-21
JPS6032846B2 (en) 1985-07-30

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Legal Events

Date Code Title Description
PL Patent ceased