GB1354030A - Range finding system - Google Patents

Range finding system

Info

Publication number
GB1354030A
GB1354030A GB1758071A GB1758071A GB1354030A GB 1354030 A GB1354030 A GB 1354030A GB 1758071 A GB1758071 A GB 1758071A GB 1758071 A GB1758071 A GB 1758071A GB 1354030 A GB1354030 A GB 1354030A
Authority
GB
United Kingdom
Prior art keywords
reflected light
reflected
photodetector
focusing
lens
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
GB1758071A
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.)
Canon Inc
Original Assignee
Canon Inc
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 JP45045812A external-priority patent/JPS5219091B1/ja
Priority claimed from JP4581470A external-priority patent/JPS549054B1/ja
Priority claimed from JP4581370A external-priority patent/JPS5146405B1/ja
Application filed by Canon Inc filed Critical Canon Inc
Publication of GB1354030A publication Critical patent/GB1354030A/en
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
    • G02B7/30—Systems for automatic generation of focusing signals using parallactic triangle with a base line
    • G02B7/32—Systems for automatic generation of focusing signals using parallactic triangle with a base line using active means, e.g. light emitter

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Measurement Of Optical Distance (AREA)
  • Focusing (AREA)
  • Automatic Focus Adjustment (AREA)
GB1758071A 1970-05-27 1971-05-27 Range finding system Expired GB1354030A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP45045812A JPS5219091B1 (enrdf_load_stackoverflow) 1970-05-27 1970-05-27
JP4581470A JPS549054B1 (enrdf_load_stackoverflow) 1970-05-27 1970-05-27
JP4581370A JPS5146405B1 (enrdf_load_stackoverflow) 1970-05-27 1970-05-27

Publications (1)

Publication Number Publication Date
GB1354030A true GB1354030A (en) 1974-06-05

Family

ID=27292391

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1758071A Expired GB1354030A (en) 1970-05-27 1971-05-27 Range finding system

Country Status (3)

Country Link
DE (1) DE2126178B2 (enrdf_load_stackoverflow)
FR (1) FR2096760B1 (enrdf_load_stackoverflow)
GB (1) GB1354030A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4303320A (en) 1976-12-10 1981-12-01 Osawa Precision Industries, Ltd. Automatic focus adjusting device

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54140532A (en) * 1978-04-23 1979-10-31 Canon Inc Automatic focus adjustor
JPS54143670A (en) * 1978-04-28 1979-11-09 Canon Inc Distance measuring system
DE3009534A1 (de) * 1980-03-12 1981-09-17 Siemens AG, 1000 Berlin und 8000 München Anordnung zur optoelektronischen entfernungsmessung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4303320A (en) 1976-12-10 1981-12-01 Osawa Precision Industries, Ltd. Automatic focus adjusting device

Also Published As

Publication number Publication date
DE2126178B2 (de) 1978-11-30
DE2126178C3 (enrdf_load_stackoverflow) 1979-08-09
FR2096760B1 (enrdf_load_stackoverflow) 1975-01-17
DE2126178A1 (de) 1971-12-09
FR2096760A1 (enrdf_load_stackoverflow) 1972-02-25

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years