JPS60120675A - Signal extractor of optical device - Google Patents

Signal extractor of optical device

Info

Publication number
JPS60120675A
JPS60120675A JP58227965A JP22796583A JPS60120675A JP S60120675 A JPS60120675 A JP S60120675A JP 58227965 A JP58227965 A JP 58227965A JP 22796583 A JP22796583 A JP 22796583A JP S60120675 A JPS60120675 A JP S60120675A
Authority
JP
Japan
Prior art keywords
signal
area
circuit
lens
image
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
JP58227965A
Inventor
Mitsuki Sagane
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 JP58227965A priority Critical patent/JPS60120675A/en
Publication of JPS60120675A publication Critical patent/JPS60120675A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To prevent shortage of object information and unnecessary information from being introduced and to improve accuracy such as automatic focusing and automatic photometry.
CONSTITUTION: An area-type solid-state image element 11 converts photoelectrically an image projected to an effective light-receiving area by a lens 12, and transmits an output signal as an image signal to an image processing circuit through an amplifier 13. At this moment, a signal extraction area is preset preliminarily in horizontal and vertical clock counters 16 and 17 by an area setting circuit 20, and only when the signal extraction area is scanned, a gate circuit 21 generates a pulse. An output signal from a waveform processing circuit 24 is added to an integrating circuit 25 through an analogue switch 22 only when said signal scans the signal extraction area. The signal is compared with the value which is set in a comparison decision circuit 26, outputted as a focusing signal or a photometry signal, and a moving amount of the lens 12 is calculated. As a result, the lens 12 or a diaphragm is shifted by a motor 29.
COPYRIGHT: (C)1985,JPO&Japio
JP58227965A 1983-12-02 1983-12-02 Signal extractor of optical device Pending JPS60120675A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58227965A JPS60120675A (en) 1983-12-02 1983-12-02 Signal extractor of optical device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58227965A JPS60120675A (en) 1983-12-02 1983-12-02 Signal extractor of optical device

Publications (1)

Publication Number Publication Date
JPS60120675A true JPS60120675A (en) 1985-06-28

Family

ID=16869029

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58227965A Pending JPS60120675A (en) 1983-12-02 1983-12-02 Signal extractor of optical device

Country Status (1)

Country Link
JP (1) JPS60120675A (en)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4768054A (en) * 1986-02-14 1988-08-30 Minolta Camera Kabushiki Kaisha Focus condition detecting device
US4904854A (en) * 1987-01-12 1990-02-27 Minolta Camera Kabushiki Kaisha Automatic focus detecting device having deviation compensation
US4905032A (en) * 1987-11-06 1990-02-27 Minolta Camera Kabushiki Kaisha Automatic focus detecting device
JPH02163715A (en) * 1988-12-16 1990-06-25 Kyocera Corp Automatic focus adjustor
US4942418A (en) * 1986-02-14 1990-07-17 Minolta Camera Kabushiki Kaisha Focus condition detecting device
US4977423A (en) * 1988-02-08 1990-12-11 Minolta Camera Kabushiki Kaisha Exposure calculating apparatus
US5053801A (en) * 1987-05-21 1991-10-01 Minolta Camera Kabushiki Kaisha Device for automatically adjusting focus or detecting object distance or camera having such function
EP0454354A2 (en) * 1990-04-19 1991-10-30 Mitsubishi Denki Kabushiki Kaisha Photographic optical system controlling apparatus
US5097282A (en) * 1987-02-06 1992-03-17 Minolta Camera Kabushiki Kaisha Automatic focusing apparatus
US5128768A (en) * 1987-09-11 1992-07-07 Canon Kabushiki Kaisha Automatic focusing device having a settable focus detection area
US5144357A (en) * 1987-11-06 1992-09-01 Minolta Camera Kabushiki Kaisha Automatic focus detecting means
US5162835A (en) * 1988-02-08 1992-11-10 Minolta Camera Kabushiki Kaisha Exposure calculating apparatus
US5214465A (en) * 1988-02-08 1993-05-25 Minolta Camera Kabushiki Kaisha Exposure calculating apparatus
US5227833A (en) * 1990-04-17 1993-07-13 Minolta Camera Kabushiki Kaisha Apparatus having an automatic focus detecting device
US5243375A (en) * 1987-05-21 1993-09-07 Minolta Camera Kabushiki Kaisha Automatic focus adjusting device for adjusting the focus of the main object to be photographed
US5363169A (en) * 1990-04-17 1994-11-08 Minolta Camera Kabushiki Kaisha Camera operated in one of a plurality of photographing modes
JPH08179192A (en) * 1995-09-08 1996-07-12 Canon Inc Optical equipment provided with line-of-sight detecting means

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5814677A (en) * 1981-07-18 1983-01-27 Copal Co Ltd Diaphragm control circuit for video camera
JPS5857867A (en) * 1981-09-30 1983-04-06 Copal Co Ltd Photometric region display circuit for stop control in video camera
JPS58153465A (en) * 1982-03-09 1983-09-12 Copal Co Ltd Still camera using solid-state image pickup element

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5814677A (en) * 1981-07-18 1983-01-27 Copal Co Ltd Diaphragm control circuit for video camera
JPS5857867A (en) * 1981-09-30 1983-04-06 Copal Co Ltd Photometric region display circuit for stop control in video camera
JPS58153465A (en) * 1982-03-09 1983-09-12 Copal Co Ltd Still camera using solid-state image pickup element

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4942418A (en) * 1986-02-14 1990-07-17 Minolta Camera Kabushiki Kaisha Focus condition detecting device
US4835562A (en) * 1986-02-14 1989-05-30 Minolta Camera Kabushiki Kaisha Focus condition detecting device
US4768054A (en) * 1986-02-14 1988-08-30 Minolta Camera Kabushiki Kaisha Focus condition detecting device
US4904854A (en) * 1987-01-12 1990-02-27 Minolta Camera Kabushiki Kaisha Automatic focus detecting device having deviation compensation
US5097282A (en) * 1987-02-06 1992-03-17 Minolta Camera Kabushiki Kaisha Automatic focusing apparatus
US5053801A (en) * 1987-05-21 1991-10-01 Minolta Camera Kabushiki Kaisha Device for automatically adjusting focus or detecting object distance or camera having such function
US5243375A (en) * 1987-05-21 1993-09-07 Minolta Camera Kabushiki Kaisha Automatic focus adjusting device for adjusting the focus of the main object to be photographed
US5128768A (en) * 1987-09-11 1992-07-07 Canon Kabushiki Kaisha Automatic focusing device having a settable focus detection area
US6088060A (en) * 1987-09-11 2000-07-11 Canon Kabushiki Kaisha Automatic focusing device
US4905032A (en) * 1987-11-06 1990-02-27 Minolta Camera Kabushiki Kaisha Automatic focus detecting device
US4994841A (en) * 1987-11-06 1991-02-19 Minolta Camera Kabushiki Kaisha Automatic focus detecting means
US5144357A (en) * 1987-11-06 1992-09-01 Minolta Camera Kabushiki Kaisha Automatic focus detecting means
US5097281A (en) * 1988-02-08 1992-03-17 Minolta Camera Kabushiki Kaisha Exposure calculating apparatus
US5214465A (en) * 1988-02-08 1993-05-25 Minolta Camera Kabushiki Kaisha Exposure calculating apparatus
US4977423A (en) * 1988-02-08 1990-12-11 Minolta Camera Kabushiki Kaisha Exposure calculating apparatus
US5162835A (en) * 1988-02-08 1992-11-10 Minolta Camera Kabushiki Kaisha Exposure calculating apparatus
US5142317A (en) * 1988-02-08 1992-08-25 Minolta Camera Kabushiki Kaisha Exposure calculating apparatus
JPH02163715A (en) * 1988-12-16 1990-06-25 Kyocera Corp Automatic focus adjustor
US5227833A (en) * 1990-04-17 1993-07-13 Minolta Camera Kabushiki Kaisha Apparatus having an automatic focus detecting device
US5363169A (en) * 1990-04-17 1994-11-08 Minolta Camera Kabushiki Kaisha Camera operated in one of a plurality of photographing modes
EP0454354A2 (en) * 1990-04-19 1991-10-30 Mitsubishi Denki Kabushiki Kaisha Photographic optical system controlling apparatus
JPH08179192A (en) * 1995-09-08 1996-07-12 Canon Inc Optical equipment provided with line-of-sight detecting means

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