发明名称 Energy efficient charging apparatus for an electronic flash
摘要 A camera having electronic flash apparatus for flash photography includes a rangefinder for measuring distance to a subject to be photographed, and circuitry for regulating a DC to DC converter to limit charging of the flash apparatus to a voltage corresponding to flash illumination that is necessary to effect a predetermined flash exposure of a subject situated at the distance measured by the rangefinder.
申请公布号 US4470684(A) 申请公布日期 1984.09.11
申请号 US19830484118 申请日期 1983.04.11
申请人 EASTMAN KODAK COMPANY 发明人 HARVEY, DONALD M.
分类号 G03B15/05;(IPC1-7):G03B15/05 主分类号 G03B15/05
代理机构 代理人
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