JPS5438159A - Distance measurement apparatus - Google Patents

Distance measurement apparatus

Info

Publication number
JPS5438159A
JPS5438159A JP10532477A JP10532477A JPS5438159A JP S5438159 A JPS5438159 A JP S5438159A JP 10532477 A JP10532477 A JP 10532477A JP 10532477 A JP10532477 A JP 10532477A JP S5438159 A JPS5438159 A JP S5438159A
Authority
JP
Japan
Prior art keywords
distance measurement
measurement apparatus
letting
paths
partially
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
JP10532477A
Other languages
Japanese (ja)
Inventor
Yoshi Kobayakawa
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 JP10532477A priority Critical patent/JPS5438159A/en
Publication of JPS5438159A publication Critical patent/JPS5438159A/en
Pending legal-status Critical Current

Links

Landscapes

  • Measurement Of Optical Distance (AREA)
  • Focusing (AREA)
  • Automatic Focus Adjustment (AREA)

Abstract

PURPOSE: To make possible use even when the visual angle to the object is small by letting the paths of the projection beam to the object and the reflected light beam therefrom differ at least partially with respect to the optical axes in a distance measuring apparatus of active system.
COPYRIGHT: (C)1979,JPO&Japio
JP10532477A 1977-09-01 1977-09-01 Distance measurement apparatus Pending JPS5438159A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10532477A JPS5438159A (en) 1977-09-01 1977-09-01 Distance measurement apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10532477A JPS5438159A (en) 1977-09-01 1977-09-01 Distance measurement apparatus

Publications (1)

Publication Number Publication Date
JPS5438159A true JPS5438159A (en) 1979-03-22

Family

ID=14404524

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10532477A Pending JPS5438159A (en) 1977-09-01 1977-09-01 Distance measurement apparatus

Country Status (1)

Country Link
JP (1) JPS5438159A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55111929A (en) * 1979-02-21 1980-08-29 Ricoh Co Ltd Automatic focusing device
JPS55166609A (en) * 1979-06-12 1980-12-25 Olympus Optical Co Ltd Method of focusing of optical system having lighting device
JPS5617329A (en) * 1979-07-23 1981-02-19 Canon Inc Distance-measuring instrument
JPS56165126A (en) * 1980-05-23 1981-12-18 Minolta Camera Co Ltd Device for focusing
JPS5735709A (en) * 1980-08-13 1982-02-26 Mitsutoyo Mfg Co Ltd Measuring method of microscopic displacement and microscopic inclination
US4630927A (en) * 1983-02-15 1986-12-23 General Electric Company Optical projector
JPS6237709U (en) * 1985-08-27 1987-03-06
JP2009139694A (en) * 2007-12-07 2009-06-25 Olympus Corp Focus detecting apparatus

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55111929A (en) * 1979-02-21 1980-08-29 Ricoh Co Ltd Automatic focusing device
JPS55166609A (en) * 1979-06-12 1980-12-25 Olympus Optical Co Ltd Method of focusing of optical system having lighting device
JPS5617329A (en) * 1979-07-23 1981-02-19 Canon Inc Distance-measuring instrument
JPS56165126A (en) * 1980-05-23 1981-12-18 Minolta Camera Co Ltd Device for focusing
JPH0419530B2 (en) * 1980-05-23 1992-03-30 Minolta Camera Kk
JPS5735709A (en) * 1980-08-13 1982-02-26 Mitsutoyo Mfg Co Ltd Measuring method of microscopic displacement and microscopic inclination
US4630927A (en) * 1983-02-15 1986-12-23 General Electric Company Optical projector
JPS6237709U (en) * 1985-08-27 1987-03-06
JP2009139694A (en) * 2007-12-07 2009-06-25 Olympus Corp Focus detecting apparatus

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