System for controlling an illuminating angle of a flashlight

Details System for controlling an illuminating angle of a flashlight System for controlling an illuminating angle of a flashlight

1989-05-11

1990-06-19

Gellner, Michael L.

G03B 1505

Patent

active

049357590

ABSTRACT:
A system for controlling an illuminating angle of a flashlight includes a stepping motor by which a relative position between a panel and a reflector is controlled to change the illuminating angle. Further, in setting the illuminating angle, the widest angle is set as the starting point, and whereby an unevenness of exposure is not caused though a sudden photography operation is performed.

REFERENCES:
patent: 4423940 (1984-01-01), Kashihara et al.
patent: 4512644 (1985-04-01), Yoshida
patent: 4743929 (1988-05-01), Taniguchi et al.
patent: 4812727 (1989-03-01), Sakai et al.

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