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US 5,113,216 AGranted
Camera
AssigneeCanon Kabushiki Kaisha
InventorYoshitaka Murata
Life of this patent
Estimating the term…
Abstract
A camera comprising a semi-open type shutter which also serves as a diaphragm, a flash device, a setting circuit for setting an aperture value for flash photography, and a control circuit for varying the opening speed of the shutter in accordance with the aperture value set by the setting circuit, whereby the previously set aperture value is established with high accuracy and reliability during the flash emission.
Claims33
A camera comprising:
- (a) a shutter which also serves as a diaphragm;
- (b) a flash device;
- (c) a distance measuring device;
- (d) setting means for setting a size of opening of said shutter for flash photography on the basis of measured distance information obtained from said distance measuring device and a guide number of said flash device, said setting means retaining said size of opening of said shutter under the condition that said flash device is emitting flash light;
- and
- (e) control means for varying the opening speed of said shutter according to said size of opening of said shutter set by said setting means.
3 more elements
A camera comprising:
- (a) a shutter which also serves as a diaphragm;
- (b) a flash device;
- (c) setting means for setting a size of opening of said shutter for flash photography, said setting means retaining said size of opening of said shutter under the condition that said flash device is emitting flash light;
- and
- (d) control means for varying the opening speed of said shutter according to said size of opening of said shutter set by said setting means.
2 more elements
A camera capable of emitting flash light, comprising:
- (a) a shutter which also serves as a diaphragm;
- (b) setting means for setting a size of opening of said shutter for flash photography, said setting means retaining said size of opening of said shutter under the condition that flash light is emitted;
- and
- (c) control means for varying the opening speed of said shutter according to said size of opening of said shutter set by said setting means.
1 more element
Dependencies are inferred from the claim text.