Flasher capable of varying a light distribution angle

Details Flasher capable of varying a light distribution angle Flasher capable of varying a light distribution angle

1996-10-18

1998-12-29

Lee, Eddie C.

Photography

With object illumination for exposure

Reflector detail

G03B 1506

Patent

active

058549498

ABSTRACT:
A stationary reflecting mirror (reflecting umbrella 2) is provided for reflecting light, emitted from a xenon discharge tube (3), to the side of an object to be photographed. An upper reflector plate (5) is provided above and in front of the stationary reflecting umbrella (2) and a lower reflector plate (6) is provided below and in front of the stationary reflecting umbrella (2). The upper and lower deflector plates (5, 6) are constructed so as to be pivoted in interlock with a change in the focal length of a photographic lens. With the upper and lower deflector plates (5, 6), part of light emitted from an opening (2A) is reflected and the direction of the reflected light that is emitted to the object is varied, and thereby the distribution angle of the light emitted to the object is varied. In this way, there is obtainable a flasher which is structurally simple and inexpensive without using high-performance lenses or an accurate moving mechanism.

REFERENCES:
patent: 4821053 (1989-04-01), Dowe et al.
patent: 5652920 (1997-07-01), Kaihara et al.

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