Focus detection apparatus having an auxiliary light

Details Focus detection apparatus having an auxiliary light Focus detection apparatus having an auxiliary light

1993-01-27

1994-03-08

Gray, David M.

354403, G03B 1300

Patent

active

052931943

ABSTRACT:
A focus detection apparatus for a camera in which a plurality of focus sensors detect the focus states of a plurality of different areas within the scene. A processor determines whether the focus can or cannot be obtained to a specific area of the scene on the basis of the outputs of the focus sensors. An auxiliary light is emitted to assist in focusing, if the specific one of the different areas is, for example, the central area.

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