JPS5737337A - Camera provided with automatic focus detector - Google Patents

Camera provided with automatic focus detector

Info

Publication number
JPS5737337A
JPS5737337A JP11323080A JP11323080A JPS5737337A JP S5737337 A JPS5737337 A JP S5737337A JP 11323080 A JP11323080 A JP 11323080A JP 11323080 A JP11323080 A JP 11323080A JP S5737337 A JPS5737337 A JP S5737337A
Authority
JP
Japan
Prior art keywords
pair
fixedly disposed
range finding
plane
horizon
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.)
Pending
Application number
JP11323080A
Other languages
Japanese (ja)
Inventor
Yasuhisa Sato
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
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP11323080A priority Critical patent/JPS5737337A/en
Publication of JPS5737337A publication Critical patent/JPS5737337A/en
Pending 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

Abstract

PURPOSE:To provide range finding capacity for the horizon and to improve focusing accuracy by setting the plane inclusive of both optical axes of a pair of imaging optical systems at an angle of approximately 45 deg. with respect to a horizontal plane. CONSTITUTION:The images of the same object are formed on a fixedly disposed photosensor array 6 by a pair of imaging optional systems 3, 4 and 3', 4' which are fixedly disposed by leaving a constant spacing, and the relative position relation between the images are read electrically, to calculate the distance up to the object. At this time, the plane inclusive of both optical axes of a pair of the fixedly disposed imaging optical systems is so formed as to assume an angle of approximately 45 deg. with respect to a horizontal plane. Hence, the range finding field in the finder field is reduced to an inclined rectangular shape, and since horizontal and vertical patterns are imaged with 45 deg. inclination on the array 6 and both of these are measurable, the improvement in focusing rate owing to a decrease in erroneous range finding for horizon is realized.
JP11323080A 1980-08-18 1980-08-18 Camera provided with automatic focus detector Pending JPS5737337A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11323080A JPS5737337A (en) 1980-08-18 1980-08-18 Camera provided with automatic focus detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11323080A JPS5737337A (en) 1980-08-18 1980-08-18 Camera provided with automatic focus detector

Publications (1)

Publication Number Publication Date
JPS5737337A true JPS5737337A (en) 1982-03-01

Family

ID=14606854

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11323080A Pending JPS5737337A (en) 1980-08-18 1980-08-18 Camera provided with automatic focus detector

Country Status (1)

Country Link
JP (1) JPS5737337A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0312150A (en) * 1989-06-09 1991-01-21 Kiyoshi Inoue Artificial dental root
US10048138B2 (en) 2012-08-16 2018-08-14 Temptime Corporation Freeze indicator employing light scattering and method of making same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0312150A (en) * 1989-06-09 1991-01-21 Kiyoshi Inoue Artificial dental root
US10048138B2 (en) 2012-08-16 2018-08-14 Temptime Corporation Freeze indicator employing light scattering and method of making same

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