FR2233640A1 - - Google Patents

Info

Publication number
FR2233640A1
FR2233640A1 FR7421001A FR7421001A FR2233640A1 FR 2233640 A1 FR2233640 A1 FR 2233640A1 FR 7421001 A FR7421001 A FR 7421001A FR 7421001 A FR7421001 A FR 7421001A FR 2233640 A1 FR2233640 A1 FR 2233640A1
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
FR7421001A
Other languages
French (fr)
Other versions
FR2233640B1 (xx
Inventor
Ludwig Leitz
Knut Heitmann
Eckart Schneider
Klaus D Schaefer
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
Ernst Leitz 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/de
Application filed by Ernst Leitz Wetzlar GmbH, Ernst Leitz GmbH filed Critical Ernst Leitz Wetzlar GmbH
Publication of FR2233640A1 publication Critical patent/FR2233640A1/fr
Application granted granted Critical
Publication of FR2233640B1 publication Critical patent/FR2233640B1/fr
Expired legal-status Critical Current

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)
FR7421001A 1973-06-18 1974-06-17 Expired FR2233640B1 (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732330940 DE2330940C3 (de) 1973-06-18 Verfahren und Einrichtungen zur fotoelektrischen Bestimmung der Lage mindestens einer Schärfenebene eines Bildes

Publications (2)

Publication Number Publication Date
FR2233640A1 true FR2233640A1 (xx) 1975-01-10
FR2233640B1 FR2233640B1 (xx) 1978-11-17

Family

ID=5884325

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7421001A Expired FR2233640B1 (xx) 1973-06-18 1974-06-17

Country Status (7)

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

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2315706A1 (fr) * 1975-06-26 1977-01-21 Leitz Ernst Gmbh Procede et dispositif pour la mise au point automatique d'un appareil optique comportant un reseau de detection
FR2386878A1 (fr) * 1977-04-05 1978-11-03 Ducommun Georges Dispositif d'aide a la reconnaissance de l'environnement pour personnes aveugles
FR2492544A1 (fr) * 1980-10-18 1982-04-23 Leitz Ernst Gmbh Dispositif pour la determination photoelectrique de la position d'au moins un plan de nettete d'une image
FR2497569A1 (fr) * 1981-01-05 1982-07-09 Polaroid Corp Systeme d'evaluation automatique de distance pour un appareil photographique de prise de vues
EP0281746A1 (de) * 1987-02-26 1988-09-14 Friedrich Horst Papenmeier Elektromechanische Braille-Zeile

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3233013A1 (de) * 1982-09-06 1984-03-08 Siemens AG, 1000 Berlin und 8000 München Optische anordnung zur erkennung und auswertung der lage eines objekts

Non-Patent Citations (1)

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

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2315706A1 (fr) * 1975-06-26 1977-01-21 Leitz Ernst Gmbh Procede et dispositif pour la mise au point automatique d'un appareil optique comportant un reseau de detection
FR2386878A1 (fr) * 1977-04-05 1978-11-03 Ducommun Georges Dispositif d'aide a la reconnaissance de l'environnement pour personnes aveugles
FR2492544A1 (fr) * 1980-10-18 1982-04-23 Leitz Ernst Gmbh Dispositif pour la determination photoelectrique de la position d'au moins un plan de nettete d'une image
FR2497569A1 (fr) * 1981-01-05 1982-07-09 Polaroid Corp Systeme d'evaluation automatique de distance pour un appareil photographique de prise de vues
EP0281746A1 (de) * 1987-02-26 1988-09-14 Friedrich Horst Papenmeier Elektromechanische Braille-Zeile

Also Published As

Publication number Publication date
GB1472454A (en) 1977-05-04
CA1009072A (en) 1977-04-26
SE399126B (sv) 1978-01-30
DE2330940B2 (de) 1976-01-02
CH601773A5 (xx) 1978-07-14
NL7408136A (nl) 1974-12-20
IT1011983B (it) 1977-02-10
DE2330940A1 (de) 1975-01-02
NL182100C (nl) 1988-01-04
FR2233640B1 (xx) 1978-11-17
SE7407984L (sv) 1974-12-19

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Legal Events

Date Code Title Description
ST Notification of lapse