Distance measuring apparatus

Details Distance measuring apparatus Distance measuring apparatus

1997-06-17

1999-07-13

Metjahic, Safet

Photography

With exposure objective focusing means, focusing aid, or...

Single focus area with variable size or location

396123, 396120, 396 92, G03B 1336, G03B 1300

Patent

active

059239107

ABSTRACT:
A distance measuring apparatus in a lens-shutter type camera is provided with a photographic lens having variable focal length. The device includes a pair of image forming lenses each forming a subject image, a pair of line sensors on which the subject images are respectively formed through the pair of image forming lenses, the pair of line sensors each having a plurality of light receiving elements. The unit also includes a plurality of light receiving areas formed correspondingly on each of the pair of line sensors, the plurality of light receiving areas each including a predetermined number of the plurality of light receiving elements. The plurality of light receiving areas respectively receive different areas of a corresponding one of the subject images formed by the pair of image forming lenses, and each adjacent pair of light receiving areas of the plurality of light receiving areas overlap each other. A device for detecting a current focal length of the photographic lens, and a device for shifting at least one of the plurality of light receiving areas on each of the pair of line sensors in accordance with the current focal length detected by the detecting device areas provided. Each light receiving element converts received light into an electrical signal which is integrated to output image data.

REFERENCES:
patent: 4349254 (1982-09-01), Jyojiki et al.
patent: 4621191 (1986-11-01), Suzuki et al.
patent: 4746790 (1988-05-01), Sorimachi
patent: 4771308 (1988-09-01), Tejima et al.
patent: 4812869 (1989-03-01), Akashi et al.
patent: 4851657 (1989-07-01), Taniguchi et al.
patent: 4924247 (1990-05-01), Suzuki et al.
patent: 4959726 (1990-09-01), Miida et al.
patent: 5051767 (1991-09-01), Honma et al.
patent: 5068682 (1991-11-01), Utagawa
patent: 5113215 (1992-05-01), Nishibe
patent: 5202718 (1993-04-01), Uchiyama
patent: 5247327 (1993-09-01), Suzuka et al.
patent: 5278602 (1994-01-01), Homma et al.
United Kingdom Search Report.

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