ORIGINAL DETECTING DEVICE

PURPOSE:To accurately detect whether or not an original is placed by reducing regularly reflected light from an original platen glass and receiving the regularly reflected light from the original even when the original is made of a material which is difficult to generate scattered light. CONSTITUTIO...

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Bibliographische Detailangaben
1. Verfasser:	MITSUI TERUO
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES THEREFOR APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM CINEMATOGRAPHY ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY ELECTROGRAPHY ELECTROPHOTOGRAPHY HOLOGRAPHY MAGNETOGRAPHY PHOTOGRAPHY PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION
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Beschreibung
Zusammenfassung:	PURPOSE:To accurately detect whether or not an original is placed by reducing regularly reflected light from an original platen glass and receiving the regularly reflected light from the original even when the original is made of a material which is difficult to generate scattered light. CONSTITUTION:In an original detecting device 1 provided with the original platen glass 6 on which the original 7 is placed and a detection circuit 3 having a light emitting means 4 and a light receiving means 5, the light receiving means 5 is arranged at a position where the light radiated from the light emitting means 4 is cast on the original 7, regularly reflected and comes. Then, coating for enhancing the transmissivity of the light radiated from the light emitting means 4 is performed to the surface of the glass 6.