JPS6418117A - Range finder for camera - Google Patents

Range finder for camera

Info

Publication number
JPS6418117A
JPS6418117A JP17395487A JP17395487A JPS6418117A JP S6418117 A JPS6418117 A JP S6418117A JP 17395487 A JP17395487 A JP 17395487A JP 17395487 A JP17395487 A JP 17395487A JP S6418117 A JPS6418117 A JP S6418117A
Authority
JP
Japan
Prior art keywords
light emission
distance measurement
light
short
light emitting
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
JP17395487A
Other languages
Japanese (ja)
Other versions
JPH0738048B2 (en
Inventor
Yoshiaki Takahashi
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.)
Konica Minolta Inc
Original Assignee
Konica Minolta 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 Konica Minolta Inc filed Critical Konica Minolta Inc
Priority to JP62173954A priority Critical patent/JPH0738048B2/en
Priority to US07/192,719 priority patent/US4827302A/en
Priority to DE88304321T priority patent/DE3886811T2/en
Priority to EP88304321A priority patent/EP0291312B1/en
Publication of JPS6418117A publication Critical patent/JPS6418117A/en
Publication of JPH0738048B2 publication Critical patent/JPH0738048B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE:To use a light emitting element which has smaller light emission intensity than an element for long-distance measurement and to accurately measure a short distance by making light emitting elements illuminate selectively by a light emission circuit and outputting light beams for long-distance measurement and short-distance measurement. CONSTITUTION:An infrared light emitting LED 6 as a light emitting element is provided with two light emission parts L1 and L2 at different positions in the direction of a base line A. The light emission part L1 is for the long-distance measurement and the light emission part L2 is for the short-distance measurement; and the light emission intensity of the light emission part L1 is made larger than that of the light emission part L2, which is installed except on the side of a PSD 5. Even reflected light from a subject at a short distance is therefore accurately caught. Consequently, the short distance can accurately be measured.
JP62173954A 1987-05-15 1987-07-14 Camera rangefinder Expired - Lifetime JPH0738048B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP62173954A JPH0738048B2 (en) 1987-07-14 1987-07-14 Camera rangefinder
US07/192,719 US4827302A (en) 1987-05-15 1988-05-11 Distance measurement apparatus for camera
DE88304321T DE3886811T2 (en) 1987-05-15 1988-05-12 Distance measuring device for a camera.
EP88304321A EP0291312B1 (en) 1987-05-15 1988-05-12 Distance measurement apparatus for camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62173954A JPH0738048B2 (en) 1987-07-14 1987-07-14 Camera rangefinder

Publications (2)

Publication Number Publication Date
JPS6418117A true JPS6418117A (en) 1989-01-20
JPH0738048B2 JPH0738048B2 (en) 1995-04-26

Family

ID=15970134

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62173954A Expired - Lifetime JPH0738048B2 (en) 1987-05-15 1987-07-14 Camera rangefinder

Country Status (1)

Country Link
JP (1) JPH0738048B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01250813A (en) * 1988-03-31 1989-10-05 Olympus Optical Co Ltd Multipoint distance measuring instrument
JPH041523U (en) * 1990-04-17 1992-01-08
JP2008107284A (en) * 2006-10-27 2008-05-08 Omron Corp Reflection-type photoelectric sensor
US9643453B2 (en) 2010-12-29 2017-05-09 Compagnie Generale Des Etablissements Michelin Annular structure having multiple reinforcement bands

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59129838A (en) * 1983-01-17 1984-07-26 Canon Inc Automatic focus photographing device
JPS60151507A (en) * 1984-01-18 1985-08-09 Canon Inc Distance measuring instrument

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59129838A (en) * 1983-01-17 1984-07-26 Canon Inc Automatic focus photographing device
JPS60151507A (en) * 1984-01-18 1985-08-09 Canon Inc Distance measuring instrument

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01250813A (en) * 1988-03-31 1989-10-05 Olympus Optical Co Ltd Multipoint distance measuring instrument
JPH041523U (en) * 1990-04-17 1992-01-08
JP2008107284A (en) * 2006-10-27 2008-05-08 Omron Corp Reflection-type photoelectric sensor
US9643453B2 (en) 2010-12-29 2017-05-09 Compagnie Generale Des Etablissements Michelin Annular structure having multiple reinforcement bands

Also Published As

Publication number Publication date
JPH0738048B2 (en) 1995-04-26

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