CH601773A5 - - Google Patents

Info

Publication number
CH601773A5
CH601773A5 CH827374A CH827374A CH601773A5 CH 601773 A5 CH601773 A5 CH 601773A5 CH 827374 A CH827374 A CH 827374A CH 827374 A CH827374 A CH 827374A CH 601773 A5 CH601773 A5 CH 601773A5
Authority
CH
Switzerland
Application number
CH827374A
Inventor
Ludwig Leitz
Knut Heitmann
Eckart Schneider
Klaus D Schaefer
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 DE19732330940 external-priority patent/DE2330940C3/en
Application filed by Leitz Ernst Gmbh filed Critical Leitz Ernst Gmbh
Publication of CH601773A5 publication Critical patent/CH601773A5/xx

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
    • 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
    • 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
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B21/00—Teaching, or communicating with, the blind, deaf or mute
    • G09B21/001—Teaching or communicating with blind persons
    • G09B21/003—Teaching or communicating with blind persons using tactile presentation of the information, e.g. Braille displays

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • General Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • Theoretical Computer Science (AREA)
  • Measurement Of Optical Distance (AREA)
  • Length Measuring Devices By Optical Means (AREA)
CH827374A 1973-06-18 1974-06-17 CH601773A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732330940 DE2330940C3 (en) 1973-06-18 Method and device for photoelectrically determining the position of at least one focal plane of an image

Publications (1)

Publication Number Publication Date
CH601773A5 true CH601773A5 (en) 1978-07-14

Family

ID=5884325

Family Applications (1)

Application Number Title Priority Date Filing Date
CH827374A CH601773A5 (en) 1973-06-18 1974-06-17

Country Status (7)

Country Link
CA (1) CA1009072A (en)
CH (1) CH601773A5 (en)
FR (1) FR2233640B1 (en)
GB (1) GB1472454A (en)
IT (1) IT1011983B (en)
NL (1) NL182100C (en)
SE (1) SE399126B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0105209A1 (en) * 1982-09-06 1984-04-11 Siemens Aktiengesellschaft Optical arrangement for the recognition and evaluation of the position of an object

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2315706A1 (en) * 1975-06-26 1977-01-21 Leitz Ernst Gmbh METHOD AND DEVICE FOR AUTOMATIC FOCUSING OF AN OPTICAL APPARATUS INCLUDING A DETECTION NETWORK
DE2813905A1 (en) * 1977-04-05 1978-10-12 Georges Ducommun AID DEVICE FOR DETECTING THE SURROUNDINGS BY THE BLIND OR VISUALLY IMPAIRED PERSONS
DE3039425A1 (en) * 1980-10-18 1982-05-19 Ernst Leitz Wetzlar Gmbh, 6330 Wetzlar DEVICE FOR PHOTOELECTRICALLY DETERMINING THE POSITION OF AT LEAST ONE FOCUS OF AN IMAGE
US4310227A (en) * 1981-01-05 1982-01-12 Polaroid Corporation Diffracted energy auto-ranging system for a camera
DE3706286A1 (en) * 1987-02-26 1988-09-08 Friedrich Horst Ing Papenmeier ELECTROMECHANICAL BRAILLE LINE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0105209A1 (en) * 1982-09-06 1984-04-11 Siemens Aktiengesellschaft Optical arrangement for the recognition and evaluation of the position of an object

Also Published As

Publication number Publication date
SE399126B (en) 1978-01-30
NL182100C (en) 1988-01-04
GB1472454A (en) 1977-05-04
SE7407984L (en) 1974-12-19
CA1009072A (en) 1977-04-26
FR2233640A1 (en) 1975-01-10
DE2330940B2 (en) 1976-01-02
NL7408136A (en) 1974-12-20
IT1011983B (en) 1977-02-10
FR2233640B1 (en) 1978-11-17
DE2330940A1 (en) 1975-01-02

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Legal Events

Date Code Title Description
PL Patent ceased