1991-06-19
1993-08-17
Gellner, Michael L.
354437, G03B 708
Patent
active
052373649
ABSTRACT:
A camera shutter system includes a matrix memory, an arrangement for determining the initial speed of a shutter sector, and a source of exposure values. The memory stores shutter-exposure pulse data elements, and is addressed by functions of the determined speed and the exposure values. A motor coupled to the sector is controlled in response to an accessed pulse data element. The data elements may relate only to variable portions of movement of the shutter, and be added to fixed values in order to minimize the size of the memory.
REFERENCES:
patent: 3950765 (1976-04-01), Nanba et al.
patent: 4325614 (1982-04-01), Grimes
patent: 4354748 (1982-10-01), Grimes et al.
patent: 4763155 (1988-08-01), Oda et al.
patent: 4907027 (1990-03-01), Kobe et al.
patent: 4989030 (1991-01-01), Naka et al.
patent: 5014082 (1991-05-01), Farrington
Akimoto Kazuo
Ito Kanji
Matsushita Katsuhiko
Tagami Shigeru
Gellner Michael L.
Noh Jae N.
Seikosha Co. Ltd.
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