Television – Camera – system and detail – Optics
Patent
1995-04-18
1998-05-12
Faile, Andrew
Television
Camera, system and detail
Optics
348296, 348350, 348353, 348364, 348365, 348367, H04N 5232, H04N 5235, H04N 5238
Patent
active
057513546
ABSTRACT:
A digital electronic camera has a first stroke switch and a second stroke switch. When the first stroke switch is pressed, adjustment of focus, coarse adjustment of exposure and detection of light-source flicker are detected using a signal from an image sensing device such as a CCD. When the second stroke switch is pressed, main exposure is performed in accordance with the conditions that have been set. Thus, adjustment of focus and exposure can be performed by relying solely upon the image sensing device and without using various sensors. Moreover, processing is completed in a short period of time by the second stroke switch, which is pressed following the first stroke switch. As a result, focus and exposure adjustments can be carried out in a short period of time using solely an image sensing device without relying upon a rangefinder sensor and photometric sensor, and release time lag can be reduced.
REFERENCES:
patent: 5223935 (1993-06-01), Tsuji et al.
patent: 5368137 (1994-11-01), Suga et al.
patent: 5376964 (1994-12-01), Soga et al.
patent: 5473375 (1995-12-01), Takayama et al.
patent: 5565917 (1996-10-01), Takayama et al.
Nakazato Saburo
Suzuki Masao
Canon Kabushiki Kaisha
Faile Andrew
Vu Ngoc-Yen
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