JPS5452529A - Range finder - Google Patents

Range finder

Info

Publication number
JPS5452529A
JPS5452529A JP11879577A JP11879577A JPS5452529A JP S5452529 A JPS5452529 A JP S5452529A JP 11879577 A JP11879577 A JP 11879577A JP 11879577 A JP11879577 A JP 11879577A JP S5452529 A JPS5452529 A JP S5452529A
Authority
JP
Japan
Prior art keywords
observation system
light
lens
range finding
subject
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
JP11879577A
Other languages
Japanese (ja)
Inventor
Hideo Yokota
Mitsuya Hosoe
Shuichi Tamura
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 JP11879577A priority Critical patent/JPS5452529A/en
Publication of JPS5452529A publication Critical patent/JPS5452529A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To achieve miniaturization by organically coupling an observation system and a range finding system by way of a light splitter. CONSTITUTION:The reflecting mirror 5 of the image light of the field frame 4 of the range finding system, the field frame 4 coupled by a semi-transparent mirror 3 forming a light splitter and the subject are observed by the eyepiece lens 2 of the observation system. The coincidence of the resistance value between the resistance 10 and brush 11 changing with the movement of a lens-barrel 8 and the count value of an arithmetic circuit 20 to which the detection signal by the photoelectric conversion means 19 through receiving of the light image of the subject formed by the optical path installed in a specified base line length at the same focal length is applied causes the light emitting diode 5, etc. by which the distance (g) proportional to the subject distance at the focusing is determined to be lighted, whereby the movement stop of the lens-barrel 8 is displayed. At the same time, this lighting is visually observed through the eyepiece lens 22 of the observation system, and distinct photographing is thus accomplished. This constitution enables the range finding system and the observation system to be approached, thus the range finder becomes smaller in size and the parallax of both systems may be reduced.
JP11879577A 1977-10-03 1977-10-03 Range finder Pending JPS5452529A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11879577A JPS5452529A (en) 1977-10-03 1977-10-03 Range finder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11879577A JPS5452529A (en) 1977-10-03 1977-10-03 Range finder

Publications (1)

Publication Number Publication Date
JPS5452529A true JPS5452529A (en) 1979-04-25

Family

ID=14745287

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11879577A Pending JPS5452529A (en) 1977-10-03 1977-10-03 Range finder

Country Status (1)

Country Link
JP (1) JPS5452529A (en)

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