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Title: Photoelectric punched card reading device
Abstract:
A photoelectric punched card reading device adapted to insert the punched card by hand, for reading the punched card photoelectrically in a static state comprising a matrix of light sensors each adapted to be in register with a hole in a punched card, an aperture mask in close contact with the light sensor matrix a card loading section having, a punched card insertion slot for holding a punched card in correct position with respect to the light sensor matrix and aperture mask, and a light source for uniformly illuminating the light sensor matrix, wherein the card loading section, the light sensor matrix and the light source are assembled integrally.
Other info: Inventors: Yamashita, Toshio (Hirakata, JA) Kotake, Toshiro (Higashi-Osaka, JA) Hasegawa, Nobuo (Uji, JA) Yoshida, Manabu (Osaka, JA) Kitamura, Saburo (Kyoto, JA) Application Number: 456472 Filing Date: 1974-04-01 Publication_date: 1976-03-09 Assignee: Matsushita Electric Industrial Company, Ltd. (Osaka, JA) Primary Class(es): 235/460 Other Classes: US Patent Ref:
Other Refs: Other References: Arrabito et al., Security Lock-Actuating System; IBM Tech. Bull., Vol. 12, No. 9, Feb. 1970, pp. 1473-1474. | |