JPS56153220A - Photometer - Google Patents

Photometer

Info

Publication number
JPS56153220A
JPS56153220A JP18001580A JP18001580A JPS56153220A JP S56153220 A JPS56153220 A JP S56153220A JP 18001580 A JP18001580 A JP 18001580A JP 18001580 A JP18001580 A JP 18001580A JP S56153220 A JPS56153220 A JP S56153220A
Authority
JP
Japan
Prior art keywords
unit
connector
photodetector
light
variance
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
JP18001580A
Other languages
Japanese (ja)
Inventor
Toshio Arai
Shunzo Inoue
Yasuo Kuroda
Michio Kasuya
Motofumi Konishi
Mitsuo Nakamura
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 JP18001580A priority Critical patent/JPS56153220A/en
Publication of JPS56153220A publication Critical patent/JPS56153220A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/72—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera

Abstract

PURPOSE:To ensure a quick compensation in a wide range for the variance of characteristics of a photodetector, by disposing a light diffusing plate plus plural polarizing plate in front of the photodetector and then giving a relative shift among these polarizing plates. CONSTITUTION:The camera unit 1 is connected to the film entrance of the processor unit 2 via the connection tube 106. At the same time, a connection is secured between the connector of unit 1 and the connector 4 of the support unit 3 as well as between the connector 5 of unit 3 and the connector 5' of unit 2, respectively. As a result, both units 1 and 2 are connected to the main body basement 6 in an electrical way. For the camera 1, a relative rotation is given between the polarizing plates 410 and 411 so that the output voltage of the photodetector 401 reaches a certain set value when a certain volume of light is irradiated to the light diffusing come 400. Thus the volume of light passing through the polarizing plate is controlled to give a compensation to the variance of characteristics of the detector 401.
JP18001580A 1980-12-19 1980-12-19 Photometer Pending JPS56153220A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18001580A JPS56153220A (en) 1980-12-19 1980-12-19 Photometer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18001580A JPS56153220A (en) 1980-12-19 1980-12-19 Photometer

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP11304178A Division JPS5540433A (en) 1978-09-14 1978-09-14 Camera

Publications (1)

Publication Number Publication Date
JPS56153220A true JPS56153220A (en) 1981-11-27

Family

ID=16075961

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18001580A Pending JPS56153220A (en) 1980-12-19 1980-12-19 Photometer

Country Status (1)

Country Link
JP (1) JPS56153220A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4772124A (en) * 1987-04-24 1988-09-20 Fusion Systems Corporation Probe for a radiometer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4772124A (en) * 1987-04-24 1988-09-20 Fusion Systems Corporation Probe for a radiometer

Similar Documents

Publication Publication Date Title
JPS5591268A (en) Blooming reduction device for image pickup device
ES8607923A1 (en) Improvements in or relating to perester compounds.
GB1418917A (en) Light measurement apparatus and method
JPS56153220A (en) Photometer
JPS5732426A (en) Photometric method of camera
JPS56168399A (en) X-ray photographic equipment
JPS54154384A (en) Infrared ray detector
JPS5734511A (en) Photographing lens device having focusing function
JPS55144228A (en) Full surface exposure device
JPS5711361A (en) Copying apparatus
JPS56153219A (en) Device for photometry
JPS57133411A (en) Detecting device for focus of camera
JPS56147578A (en) Correction system of mixed color for solidstate color image pickup device
JPS5392621A (en) Color solid image pickup unit
DE3379601D1 (en) Improved hybrid camera arrangement
JPS5695224A (en) Flash exposure control device
SU859885A1 (en) Nuclear absortion optical cell
JPS5364032A (en) Photography
JPS5664567A (en) Automatic control unit for image pickup device
JPS5362500A (en) Photoelectric type smoke detector
JPS5732428A (en) Photometric device for photography using auxiliary light
JPS57172333A (en) Focusing display device for camera
JPS5451578A (en) Photometer
JPS55127554A (en) Film cassette of camera for endoscope
JPS5738430A (en) X-ray photographing device