Illumination – Light source and modifier – Adjustable or repositionable modifier
Patent
1989-11-07
1991-05-07
Husar, Stephen F.
Illumination
Light source and modifier
Adjustable or repositionable modifier
362186, 362293, 362319, F21V 900
Patent
active
050141716
ABSTRACT:
A flashlight is provided that can be switched between a white light mode wherein it produces white light and a color mode wherein it produces primarily light of a particular color such as red, which can be easily operated with the same hand that holds the flashlight. A hood (34 of FIG. 2) of material that passes only red light is mounted on the lens (40) of the flashlight, and the periphery of the lens is mounted on a select member (46) that can be moved forwardly and rearwardly with respect to the rest of the flashlight. When the select member is moved to its rearward position, the hood intercepts substantially all of the light passing between a lamp (32) and the reflector (36) of the flashlight, so that primarily red light is produced by the flashlight. When the select member is moved to a forward position (46A), the hood lies forward of most of the light rays passing between the lamp and the reflector, so the flashlight produces primarily white light. A person holding a flashlight in the usual manner, can use fingers of the same hand holding the flashlight to move the select member.
REFERENCES:
patent: 2420307 (1947-05-01), Fristoe
patent: 4307439 (1981-12-01), Sassmannshausen
patent: 4530039 (1985-07-01), Shin-Shi
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