Camera-responsive charging apparatus for an electronic strobe fl

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Details

354145, 354267, G03B 1505, G03B 1738

Patent

active

043613896

ABSTRACT:
An electronic strobe flash unit in a camera is charged in response to actuation of a shutter-release member, and also in response to termination of a post-exposure film advance operation. These charging intervals are limited, respectively, by the actuation speed of the release member and by the time lapse between successive exposures. For supplementary charging of the flash unit, a potential charging delay is established, prior to exposure, when the release member is moved to a position in which the exposure operation is irreversibly initiated. This delay is potentially long enough to assure that the flash unit is charged sufficiently to produce a flash regardless of its previous condition, but is sufficiently brief to avoid disturbing the camera operator.

REFERENCES:
patent: 3953864 (1976-04-01), Iwata et al.
patent: 4084167 (1978-04-01), Iwata
patent: 4085413 (1978-04-01), Karikawa

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