Exposure control method of imaging apparatus

Details Exposure control method of imaging apparatus Exposure control method of imaging apparatus

2004-07-16

2008-11-11

Vu, Ngoc-Yen (Department: 2622)

Television

Camera, system and detail

Optics

C348S229100, C348S360000, C348S364000, C396S213000

Reexamination Certificate

active

07450170

ABSTRACT:
When a brightness level of an object is below a predetermined level, an ND filter is removed from an iris opening to fully open the iris opening, and when the brightness level of the object is above a predetermined level, the ND filter is placed to the iris opening to fully close the iris opening. When the ND filter is moved between the fully-opened state and the fully-closed state, an exposure change amount corresponding to an amount offsetting the exposure change amount due to a state transition is generated by controlling iris blades.

REFERENCES:
patent: 6930723 (2005-08-01), Tsuda et al.
patent: 2007/0065135 (2007-03-01), Takei et al.
patent: 10210487 (1998-07-01), None
patent: 11-220652 (1999-08-01), None
patent: 2000-10150 (2000-01-01), None
patent: 2001-222039 (2001-08-01), None
patent: 2002-135650 (2002-05-01), None

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