Static information storage and retrieval – Radiant energy – Photoconductive
Patent
1991-10-15
1994-09-27
LaRoche, Eugene R.
Static information storage and retrieval
Radiant energy
Photoconductive
2502081, 365114, G11C 1304
Patent
active
053512090
ABSTRACT:
An apparatus for converting optical information into an electrical information signal includes a plurality of one-dimensional conversion arrays arranged in parallel form. Each one-dimensional conversion array has first and second photoelectric conversion structures integrally formed. The first photoelectric conversion structure has photoelectric conversion elements each having a light receiving surface onto which an information light is projected. The second photoelectric conversion structure has photoelectric conversion elements each having a sweep light receiving surface onto which a sweep light is projected. The sweep light has a cross section which simultaneously scans the sweep light receiving surface of one of the photoelectric conversion elements included in each of the one-dimensional conversion arrays. The electrical information signal is read out from the photoelectric conversion elements provided in the first photoelectric conversion structure when the sweep light is projected onto the photoelectric conversion elements provided in the second photoelectric conversion structure.
REFERENCES:
patent: 3932025 (1976-01-01), Lakatos et al.
patent: 4778985 (1988-10-01), Modisette et al.
patent: 4827117 (1989-05-01), Uchida
patent: 4999484 (1991-03-01), Kaneko
Fujita Shunsuke
Hamaguchi Iwao
Hayashi Yutaka
Agency of Industrial Science and Technology
Glembocki Christopher
LaRoche Eugene R.
Ricoh Company, Inc.
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