Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1988-09-27
1989-10-17
Westin, Edward P.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
250211R, 357 30, H01J 4014
Patent
active
048749575
ABSTRACT:
A contact type image sensor includes a plurality of opaque metallic films formed on top of a transparent insulating substrate. Each opaque metallic film is located between adjacent lower electrodes formed on a transparent insulating film so as to prevent light emitted from a light source from being irradiated on a document to be scanned. Further, each opaque metallic film is located between adjacent upper extension electrodes connected to transparent conductive films formed on photoelectric conversion layers, so as to prevent the light from being irradiated on the document. Only light which is emitted from the light source and then passes through the light window, is irradiated on the document.
REFERENCES:
patent: 4672221 (1987-06-01), Saito et al.
patent: 4719345 (1988-01-01), Arita
Ishida Tsutomu
Sasaki Saburo
Yamamoto Kenji
Ricoh & Company, Ltd.
Ricoh Research Institute of General Electronics
Shami Khaled
Westin Edward P.
LandOfFree
Contact type image sensor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Contact type image sensor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Contact type image sensor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1745118