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Title:
CAMERA WITH BUILT-IN ELECTRONIC FLASH AND ELECTRONIC FLASH DEVICE
Document Type and Number:
Japanese Patent JP2001350169
Kind Code:
A
Abstract:

To provide a camera with a built-in electronic flash with an automatic light control circuit whose light control level is sufficient in a practical use, irrespective of a certain extent of variation.

As for the camera with a built-in electronic flash equipped with the automatic light control circuit where electronic flash light emitted and reflected by a subject is received by a light receiving element and the emission of the electronic flash is stopped when the reflected light reaches a prescribed light quantity, the light is controlled by the light control circuit so that the minimum exposure to a recording medium for recording the subject may be -1 EV to 0.5 EV with reference to a theoretical exposure at photographing a prescribed subject positioned within an range up to a distance decided based on a guide number and a diaphragm when the light is fully emitted from a prescribed near distance.


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Inventors:
NAKANISHI HIROMI
Application Number:
JP2000167446A
Publication Date:
December 21, 2001
Filing Date:
June 05, 2000
Export Citation:
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Assignee:
KONISHIROKU PHOTO IND
International Classes:
G03B7/16; G03B15/05; G03B17/04; G03C3/00; (IPC1-7): G03B7/16; G03B15/05; G03B17/04; G03C3/00