JPS5739673A - Image sensor - Google Patents

Image sensor

Info

Publication number
JPS5739673A
JPS5739673A JP55115567A JP11556780A JPS5739673A JP S5739673 A JPS5739673 A JP S5739673A JP 55115567 A JP55115567 A JP 55115567A JP 11556780 A JP11556780 A JP 11556780A JP S5739673 A JPS5739673 A JP S5739673A
Authority
JP
Japan
Prior art keywords
luminance
image
circuit
signal
sensor
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
JP55115567A
Other languages
Japanese (ja)
Inventor
Takashi Kondo
Seiji Yamada
Original Assignee
Minolta Camera 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 Minolta Camera Co Ltd filed Critical Minolta Camera Co Ltd
Priority to JP55115567A priority Critical patent/JPS5739673A/en
Publication of JPS5739673A publication Critical patent/JPS5739673A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/30Transforming light or analogous information into electric information

Abstract

PURPOSE:To extend the luminance area, by making the signal levels having a part of superposed area equal and synthesizing them, for two image sensing means having the superposed part and having sensitivity at the different luminance areas each other. CONSTITUTION:An image of objective is simultaneously given to image sensors 6, 8 from a semitransparent mirror 4. Since the sencor 8 is attenuated with the strength of incident light by an ND filter 10, the video signal at higher luminance side is decreased to output. A substraction circuit 12 substratcs a voltage Vs corresponding to the luminance B of the sensor 8 and a clipper circuit 16 keeps ground level at the luminance B or lower. Two image signals outputted from the sensor 6 and the circuit 16 are added at an addition circuit 18 and the image signals of high and low luminance side are synthesized to one signal arranged on the same straight line. The slope of the synthesized signal is compensated with a slope conversion circuit 20 so as to match it with the input level width of the image reproducing device.
JP55115567A 1980-08-21 1980-08-21 Image sensor Pending JPS5739673A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55115567A JPS5739673A (en) 1980-08-21 1980-08-21 Image sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55115567A JPS5739673A (en) 1980-08-21 1980-08-21 Image sensor

Publications (1)

Publication Number Publication Date
JPS5739673A true JPS5739673A (en) 1982-03-04

Family

ID=14665746

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55115567A Pending JPS5739673A (en) 1980-08-21 1980-08-21 Image sensor

Country Status (1)

Country Link
JP (1) JPS5739673A (en)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58209273A (en) * 1982-05-31 1983-12-06 Mitsutoshi Hatori X-ray television image pickup device
JPS5952235A (en) * 1982-09-20 1984-03-26 Hitachi Medical Corp X-ray film picture reader
JPS59210775A (en) * 1983-05-16 1984-11-29 Fuji Photo Film Co Ltd Solid-state image pickup device
JPS6052171A (en) * 1983-09-01 1985-03-25 Olympus Optical Co Ltd Image pickup device
JPS6052172A (en) * 1983-09-01 1985-03-25 Olympus Optical Co Ltd Image pickup device
JPS61219270A (en) * 1985-03-25 1986-09-29 Nippon Kogaku Kk <Nikon> Device for converting optical signal to electrical one
JPS62108678A (en) * 1985-10-30 1987-05-19 Polaroid Corp Electronic camera
JPS6398286A (en) * 1986-10-14 1988-04-28 Olympus Optical Co Ltd Image signal processor
FR2606242A1 (en) * 1986-10-31 1988-05-06 Thomson Csf VIDEO MIXER CIRCUIT, USEFUL FOR HIGH RESOLUTION IMAGING WITH SOLID MATRIX SENSOR CAMERAS
JPS63123282A (en) * 1986-11-13 1988-05-27 Olympus Optical Co Ltd Image signal processor
JPS6489770A (en) * 1987-09-30 1989-04-04 Fuji Photo Film Co Ltd Electronic still camera
JPH0547878A (en) * 1991-08-07 1993-02-26 Nec Yamagata Ltd Inspecting device for surface of semiconductor wafer
US6219097B1 (en) 1996-05-08 2001-04-17 Olympus Optical Co., Ltd. Image pickup with expanded dynamic range where the first exposure is adjustable and second exposure is predetermined
US6456317B1 (en) 1997-12-03 2002-09-24 Olympus Optical Co., Ltd. Endoscopic apparatus
US6677992B1 (en) 1997-10-23 2004-01-13 Olympus Corporation Imaging apparatus offering dynamic range that is expandable by weighting two image signals produced during different exposure times with two coefficients whose sum is 1 and adding them up
JP2011099788A (en) * 2009-11-06 2011-05-19 Nec Corp Pattern inspection device and pattern inspection method

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0376070B2 (en) * 1982-05-31 1991-12-04 Eiichi Takenaka
JPS58209273A (en) * 1982-05-31 1983-12-06 Mitsutoshi Hatori X-ray television image pickup device
JPS5952235A (en) * 1982-09-20 1984-03-26 Hitachi Medical Corp X-ray film picture reader
JPS59210775A (en) * 1983-05-16 1984-11-29 Fuji Photo Film Co Ltd Solid-state image pickup device
JPS6052171A (en) * 1983-09-01 1985-03-25 Olympus Optical Co Ltd Image pickup device
JPS6052172A (en) * 1983-09-01 1985-03-25 Olympus Optical Co Ltd Image pickup device
JPS61219270A (en) * 1985-03-25 1986-09-29 Nippon Kogaku Kk <Nikon> Device for converting optical signal to electrical one
JPS62108678A (en) * 1985-10-30 1987-05-19 Polaroid Corp Electronic camera
JPS6398286A (en) * 1986-10-14 1988-04-28 Olympus Optical Co Ltd Image signal processor
FR2606242A1 (en) * 1986-10-31 1988-05-06 Thomson Csf VIDEO MIXER CIRCUIT, USEFUL FOR HIGH RESOLUTION IMAGING WITH SOLID MATRIX SENSOR CAMERAS
EP0267104A1 (en) * 1986-10-31 1988-05-11 Thomson-Csf Video mixing circuit for high resolution imaging with solid-state cameras organized in a matrix form
US4794457A (en) * 1986-10-31 1988-12-27 Thomson-Csf Video signal mixer circuit for high-resolution imaging with solid-state matrix sensor cameras
JPS63123282A (en) * 1986-11-13 1988-05-27 Olympus Optical Co Ltd Image signal processor
JPS6489770A (en) * 1987-09-30 1989-04-04 Fuji Photo Film Co Ltd Electronic still camera
JPH0547878A (en) * 1991-08-07 1993-02-26 Nec Yamagata Ltd Inspecting device for surface of semiconductor wafer
US6219097B1 (en) 1996-05-08 2001-04-17 Olympus Optical Co., Ltd. Image pickup with expanded dynamic range where the first exposure is adjustable and second exposure is predetermined
US6771312B2 (en) 1996-05-08 2004-08-03 Olympus Optical Co., Ltd. Image processing apparatus
US6677992B1 (en) 1997-10-23 2004-01-13 Olympus Corporation Imaging apparatus offering dynamic range that is expandable by weighting two image signals produced during different exposure times with two coefficients whose sum is 1 and adding them up
US6456317B1 (en) 1997-12-03 2002-09-24 Olympus Optical Co., Ltd. Endoscopic apparatus
JP2011099788A (en) * 2009-11-06 2011-05-19 Nec Corp Pattern inspection device and pattern inspection method

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