Light emission device for focus detection having a chart and an

Details Light emission device for focus detection having a chart and an Light emission device for focus detection having a chart and an

1994-01-28

1995-10-17

Perkey, W. B.

G03B 1336

Patent

active

054595517

ABSTRACT:
A device for projecting, by a light projection lens, a pattern chart image toward an object focus-detected by a focus detecting device comprises a chart having a predetermined pattern, and an illuminator for illuminating the chart non-uniformly.

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