1977-05-12
1978-09-12
Griffin, Donald A.
354 32, 354196, G03B 716, G03B 1503, G03B 1302
Patent
active
041141709
ABSTRACT:
A flash mechanism for use with cameras comprising a program shutter, a diaphragm linkage lever, an intermediate linkage lever for a flash illumination device, a distance ring, and an exposure correction member, such as a correction element for the guide numbers of the illumination device or a correction element for film sensitivity on which the distance ring is mounted, wherein the rotation center of the distance ring is slightly deviated from the rotation center of the exposure correction member so that the distance ring may be used in both the focussing operation and the film sensitivity setting with a flash illumination device.
REFERENCES:
patent: 3037439 (1962-06-01), Rentschler
patent: 3118356 (1964-01-01), Sauer et al.
patent: 3162111 (1964-12-01), Koppen et al.
patent: 3169464 (1965-02-01), Koppen
patent: 3257920 (1966-06-01), Greger et al.
patent: 3620151 (1971-11-01), Kitai
Griffin Donald A.
Ricoh & Company, Ltd.
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