1979-09-26
1981-07-28
Hix, L. T.
354 33, 354 41, 354 43, 354127, 354149, 354196, 354289, G03B 724, G03B 726, G03B 1505
Patent
active
042807603
ABSTRACT:
A flash camera having features that an aperture control is made in accordance with the factors whether a film sensitivity is high or low and besides whether a flash apparatus is used, that a constant-voltage circuit of small power consumption is employed thereby enabling to flow current to a meter either continuously or before a photographing and to be free from exposure errors arising from a damping movement of a pointer of the meter and so on, and that an operation of the constant-voltage circuit is controlled by a change-over switch to compensate light intensity variations of a strobe apparatus when power source voltage varies.
REFERENCES:
patent: 3678829 (1972-07-01), Kaneko
patent: 4021824 (1977-05-01), Uchiyama et al.
patent: 4153355 (1979-05-01), Ikawa et al.
patent: 4162836 (1979-07-01), Harrison
Iwata Hiroshi
Mitsui Hajime
Yamaoka Tetsuo
Hix L. T,.
Perkey William B.
West Electric Company Ltd.
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