Imaging apparatus and method for controlling flash emission

Details Imaging apparatus and method for controlling flash emission Imaging apparatus and method for controlling flash emission

2009-09-29

2011-10-18

LaBalle, Clayton E (Department: 2862)

Photography

With object illumination for exposure

Having preexposure illumination

C348S371000

Reexamination Certificate

active

08041206

ABSTRACT:
An imaging apparatus includes: flash driving means for driving a flash during a set preliminary emission period and a set main emission period; and an image sensor constituted by a plurality of photoelectric converting elements which are arranged in a matrix and capable of being accessed randomly. The charge accumulation initiation timing and the charge accumulation cessation timing of the photoelectric converting elements are controlled line by line or pixel by pixel. The imaging apparatus forms images employing pixel signals output from the photoelectric converting elements, and extracts pixel signals output from photoelectric converting elements in which charge accumulation is initiated prior to the preliminary emission period and ceased after the preliminary emission period. An emission amount to be employed during the main emission period is determined by executing predetermined calculations based on the extracted pixel signals. Main emission of flash is performed with the determined emission amount.

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EXIF Specification version 2.2, dated Apr. 2002. Relevant sections.

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