TRANSMISSION TYPE OPTICAL SENSOR

PROBLEM TO BE SOLVED: To obtain a transmission type optical sensor which eliminates the need to provide a connection line for inputting a synchronizing signal from outside even when a synchronous detection system is employed so as to reduce the influence of disturbing light and to obtain a transmiss...

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Bibliographic Details
Main Authors AIDA RYUICHI, NISHIMURA MITSUO
Format Patent
LanguageEnglish
Published 30.01.2001
Edition7
Subjects
BASIC ELECTRONIC CIRCUITRY
COLORIMETRY
DETECTING MASSES OR OBJECTS
ELECTRICITY
GEOPHYSICS
GRAVITATIONAL MEASUREMENTS
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT
MEASURING
PHYSICS
PULSE TECHNIQUE
RADIATION PYROMETRY
TESTING
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Summary:PROBLEM TO BE SOLVED: To obtain a transmission type optical sensor which eliminates the need to provide a connection line for inputting a synchronizing signal from outside even when a synchronous detection system is employed so as to reduce the influence of disturbing light and to obtain a transmission type optical sensor which is prevented from malfunctioning owing to disturbing light without using the synchronous detection system. SOLUTION: A detection part 1 and an electron mirror pat 2 are installed opposite each other and both emit and receive light; and the electron mirror part 2 emits light when receiving light from the detection part 1 and the detection part 1 receives light from the electron mirror part 2 in synchronism with its light emission, and does not detect an object 3 when the synchronous light reception is carried on, but detects the object 3 when the synchronous light reception is ceased.
Bibliography:Application Number: JP19990254929