JPS6466511A - Photodetector for measuring distance of camera - Google Patents

Photodetector for measuring distance of camera

Info

Publication number
JPS6466511A
JPS6466511A JP22488487A JP22488487A JPS6466511A JP S6466511 A JPS6466511 A JP S6466511A JP 22488487 A JP22488487 A JP 22488487A JP 22488487 A JP22488487 A JP 22488487A JP S6466511 A JPS6466511 A JP S6466511A
Authority
JP
Japan
Prior art keywords
light receiving
light
strip
strips
receiving surfaces
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.)
Granted
Application number
JP22488487A
Other languages
Japanese (ja)
Other versions
JPH06103179B2 (en
Inventor
Minoru Ishiguro
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.)
Fujinon Corp
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film Co Ltd
Fuji Photo Optical Co Ltd
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
Application filed by Fuji Photo Film Co Ltd, Fuji Photo Optical Co Ltd filed Critical Fuji Photo Film Co Ltd
Priority to JP22488487A priority Critical patent/JPH06103179B2/en
Priority to US07/228,227 priority patent/US4868591A/en
Publication of JPS6466511A publication Critical patent/JPS6466511A/en
Publication of JPH06103179B2 publication Critical patent/JPH06103179B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Photo Coupler, Interrupter, Optical-To-Optical Conversion Devices (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Measurement Of Optical Distance (AREA)
  • Focusing (AREA)
  • Automatic Focus Adjustment (AREA)

Abstract

PURPOSE:To enable impartment of distance information to an object and canceling information on changes in brightness of reflected light, by combining two light receiving bodies in strips to vary the area of a strip-like light receiving surface of one light receiving body for a displacement of a received light image with a light shielding body. CONSTITUTION:First and second light receiving bodies 11 and 12 are arranged having a plurality of strip-shapes light receiving surfaces 14 and 16 in a parallel array along with a specified width thereof while made independent electrically of each other to be combined in strips with the respective strip-shaped light receiving surfaces 14 and 16 alternately arranged. Then, a light shielding body 18 is provided on the light receiving surface 16 in such a manner that the light receiving area of the light receiving surfaces 14 and 16 in the light receiving body 12 is minimal on one side in the direction of crossing the light receiving surfaces 14 and 16 and increases from one to other side while being equal to that of the light receiving surface 14 on the other side. This can eliminate the need for due consideration to a parallax attributed to the use of the two light receiving elements, variation in the production of elements and lenses.
JP22488487A 1987-08-04 1987-09-08 Light-receiving element for camera distance measurement Expired - Fee Related JPH06103179B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP22488487A JPH06103179B2 (en) 1987-09-08 1987-09-08 Light-receiving element for camera distance measurement
US07/228,227 US4868591A (en) 1987-08-04 1988-08-04 Photodetector element for optical rangefinders

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22488487A JPH06103179B2 (en) 1987-09-08 1987-09-08 Light-receiving element for camera distance measurement

Publications (2)

Publication Number Publication Date
JPS6466511A true JPS6466511A (en) 1989-03-13
JPH06103179B2 JPH06103179B2 (en) 1994-12-14

Family

ID=16820675

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22488487A Expired - Fee Related JPH06103179B2 (en) 1987-08-04 1987-09-08 Light-receiving element for camera distance measurement

Country Status (1)

Country Link
JP (1) JPH06103179B2 (en)

Also Published As

Publication number Publication date
JPH06103179B2 (en) 1994-12-14

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