JPS5665121A - Distance measuring and photometric device of camera - Google Patents

Distance measuring and photometric device of camera

Info

Publication number
JPS5665121A
JPS5665121A JP14110779A JP14110779A JPS5665121A JP S5665121 A JPS5665121 A JP S5665121A JP 14110779 A JP14110779 A JP 14110779A JP 14110779 A JP14110779 A JP 14110779A JP S5665121 A JPS5665121 A JP S5665121A
Authority
JP
Japan
Prior art keywords
focusing
luminance
signal
inputted
shift register
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
JP14110779A
Other languages
Japanese (ja)
Other versions
JPS601603B2 (en
Inventor
Kunihiko Araki
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP14110779A priority Critical patent/JPS601603B2/en
Priority to US06/201,528 priority patent/US4387975A/en
Priority to DE3041098A priority patent/DE3041098C2/en
Priority to DE3050920A priority patent/DE3050920C2/en
Publication of JPS5665121A publication Critical patent/JPS5665121A/en
Publication of JPS601603B2 publication Critical patent/JPS601603B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Focusing (AREA)
  • Automatic Focus Adjustment (AREA)
  • Exposure Control For Cameras (AREA)

Abstract

PURPOSE: To enable distance measurement and photometry to be accomplished simultaneously be detecting focusing from the phase difference of the output signals of a pair of photoelectric arrays to which the peripheral light of the exit pupil of a taking lens enters and detecting luminance from the magnitude thereof.
CONSTITUTION: Luminance is measured by photoelectric element arrays 32, and self-scanning is made by a shift register 33. Focusing detection is performed by an automatic focus control circuit 35 via a sample holding circuit 34. The results of the detection are displayed by a display device 36, and focusing is performed by motor control 37 based on said results. On the other hand, an integrated value 38 and a mean value 39 are obtained from one signal of the sample holding, and if the mean value is smaller than a reference value as a result of the comparison with a level detector 40, the time signal is inputted to the shift register, whereby the power level by each signal is enhanced. The level detector output is inputted as luminance information to an automatic exposure control circuit 42, by which it is arithmetically processed.
COPYRIGHT: (C)1981,JPO&Japio
JP14110779A 1979-10-31 1979-10-31 Camera distance metering device Expired JPS601603B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP14110779A JPS601603B2 (en) 1979-10-31 1979-10-31 Camera distance metering device
US06/201,528 US4387975A (en) 1979-10-31 1980-10-28 Automatic focusing position detection apparatus
DE3041098A DE3041098C2 (en) 1979-10-31 1980-10-31 Device for determining the focus of an optical system on an object
DE3050920A DE3050920C2 (en) 1979-10-31 1980-10-31 Device for the automatic focusing of an optical system on an object

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14110779A JPS601603B2 (en) 1979-10-31 1979-10-31 Camera distance metering device

Publications (2)

Publication Number Publication Date
JPS5665121A true JPS5665121A (en) 1981-06-02
JPS601603B2 JPS601603B2 (en) 1985-01-16

Family

ID=15284332

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14110779A Expired JPS601603B2 (en) 1979-10-31 1979-10-31 Camera distance metering device

Country Status (1)

Country Link
JP (1) JPS601603B2 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5855909A (en) * 1981-09-29 1983-04-02 Takeomi Suzuki Detector for optical image
US4882601A (en) * 1986-05-16 1989-11-21 Minolta Camera Kabushiki Kaisha Camera with an automatic focusing device
US4888609A (en) * 1985-01-17 1989-12-19 Minolta Camera Kabushiki Kaisha Automatic focus adjusting apparatus
US4910548A (en) * 1986-05-16 1990-03-20 Minolta Camera Kabushiki Kaisha Camera with a multi-zone focus detecting device
US5168299A (en) * 1986-05-16 1992-12-01 Minolta Camera Co., Ltd. Camera with a multi-zone focus detecting device
US5218395A (en) * 1986-05-16 1993-06-08 Minolta Camera Kabushiki Kaisha Camera with a multi-zone focus detecting device
JP2012113248A (en) * 2010-11-26 2012-06-14 Canon Inc Imaging apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61205600A (en) * 1985-03-08 1986-09-11 岡本　譲治 Shortening device for ground run on landing of aircraft

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5855909A (en) * 1981-09-29 1983-04-02 Takeomi Suzuki Detector for optical image
US5079582A (en) * 1985-01-14 1992-01-07 Minolta Camera Kabushiki Kaisha Automatic focus adjusting apparatus
US4888609A (en) * 1985-01-17 1989-12-19 Minolta Camera Kabushiki Kaisha Automatic focus adjusting apparatus
US5001509A (en) * 1985-01-17 1991-03-19 Minolta Camera Kabushiki Kaisha Automatic focus adjusting apparatus
US4882601A (en) * 1986-05-16 1989-11-21 Minolta Camera Kabushiki Kaisha Camera with an automatic focusing device
US4910548A (en) * 1986-05-16 1990-03-20 Minolta Camera Kabushiki Kaisha Camera with a multi-zone focus detecting device
US5168299A (en) * 1986-05-16 1992-12-01 Minolta Camera Co., Ltd. Camera with a multi-zone focus detecting device
US5218395A (en) * 1986-05-16 1993-06-08 Minolta Camera Kabushiki Kaisha Camera with a multi-zone focus detecting device
JP2012113248A (en) * 2010-11-26 2012-06-14 Canon Inc Imaging apparatus

Also Published As

Publication number Publication date
JPS601603B2 (en) 1985-01-16

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