Patent
1991-09-10
1992-12-15
Perkey, W. B.
3541271, 354465, G03B 1318
Patent
active
051721562
ABSTRACT:
A camera with a too-close-subject-distance alarm display device, further comprising a flash device for flashing the light to a subject to be photographed; a selection device for selecting at least the flash exposure mode in which the flash device is permitted to flash or the flash inhibit mode in which the flash device is inhibited to flash; a subject-distance measuring instrument for measuring a subject distance; a decision device for detecting whether the subject distance measured by said distance measuring instrument is less than a predetermined distance or not; an alarm device for alarming when said subject distance measured by said subject-distance measuring instrument is detected to be shorter than said predetermined subject distance by said decision device; and a setting device for setting said predetermined distance to a first predetermined distance when said selection device has selected the flash exposure mode and for setting said predetermined distance to a second predetermined distance longer than the first predetermined distance when the selection device has selected the flash inhibit mode.
REFERENCES:
patent: 3696721 (1972-10-01), Wagner
patent: 4557578 (1985-12-01), Seely
patent: 4688921 (1987-08-01), Wakabayashi
patent: 5051766 (1991-09-01), Nonaka et al.
Higaki Riichi
Iida Yoshikazu
Katayama Akira
Tsuru Hiroyuki
Nikon Corporation
Perkey W. B.
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