OPTICAL DETECTION DEVICE

PROBLEM TO BE SOLVED: To provide a simple optical detection device applied to an electronic apparatus requiring detection of a position of a member moving relative to a photoelectric conversion element and detection of a movement amount.SOLUTION: An optical detection device comprises: a photoelectri...

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1. Verfasser:	TAKANASHI TATSUO
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS MEASURING MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS TARIFF METERING APPARATUS TESTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a simple optical detection device applied to an electronic apparatus requiring detection of a position of a member moving relative to a photoelectric conversion element and detection of a movement amount.SOLUTION: An optical detection device comprises: a photoelectric conversion element including a light emitting part and a light receiving part; a detected member moving relative to the photoelectric conversion element; a concave side that is provided on the detected member, that is composed of a portion of a curved surface of a spheroid, and that has the light emitting part placed near a position of a first focal point of the curved surface of the spheroid and the light receiving part placed near a position of a second focal point, when facing the photoelectric conversion element.