Camera with partial exposed frame film detector and battery moni

Details Camera with partial exposed frame film detector and battery moni Camera with partial exposed frame film detector and battery moni

1999-08-04

2000-12-19

Gray, David M.

Photography

Battery insertion/removal/depletion responsive

396390, 396408, G03B 726

Patent

active

061636541

ABSTRACT:
A camera which determines whether a film cartridge loaded in the camera is a partial cartridge, containing photographic film having an exposed frame and an unexposed frame, or not, and feeds the photographic film from the loaded film cartridge up to a first unexposed frame if determining that the loaded film cartridge is a partial cartridge, the camera includes a first battery checking unit defined by a first determination means for determining whether voltage of a battery in the camera is more than a first threshold level, and first prohibiting means for prohibiting photographing if the loaded film cartridge is not determined as being the partial cartridge and determining, the first determination means determines that the voltage of the battery is less than the first threshold level. The camera also including a second battery checking unit defined by a second determination means for determining whether the voltage of the battery is more than a second threshold level, which is higher than the first threshold level, and second prohibiting means for prohibiting photographing if the loaded film cartridge is determined as being the partial cartridge and the second determination means determines that the voltage of the battery is less than the second threshold.

REFERENCES:
patent: 5130745 (1992-07-01), Cloutier et al.
patent: 5335029 (1994-08-01), Itoh et al.
patent: 5412444 (1995-05-01), Kazami
patent: 5434634 (1995-07-01), Yoshida
patent: 5649249 (1997-07-01), Yoshida
patent: 5721987 (1998-02-01), Ozawa
patent: 5727240 (1998-03-01), Mizumoto et al.
patent: 5729778 (1998-03-01), Sasaki
patent: 5760876 (1998-06-01), Farling et al.

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