Lamp assembly with light pipe, light pipe and light pipe/lens as

Details Lamp assembly with light pipe, light pipe and light pipe/lens as Lamp assembly with light pipe, light pipe and light pipe/lens as

1997-01-15

1998-08-11

Lazarus, Ira S.

Illumination

Light modifier

Refractor

362 31, 362 74, 362 833, 362339, F21V 500

Patent

active

057917728

ABSTRACT:
The invention relates to a light pipe which includes a more effective light collector which transmits a larger amount of illumination to a lens located adjacent the light pipe. A lamp assembly includes a housing having walls defining a chamber and an open front. A lamp is mounted in the housing as well as a lens which covers the open front of the housing. The lens has a portion which extends laterally of the housing chamber. A light pipe is mounted to the housing adjacent the lens for collecting and distributing the light from the lamp along the laterally-extending portion of the lens. For more effective transmission of the light in a light distribution portion of the light pipe, the light-distributing portion can be provided with grooves along a surface distal from the lens to direct light from the light-collecting portion toward the lens. A light-collecting portion of the light pipe can be provided with a parabolic collecting surface facing the lamp to increase the light collection capabilities of the light-collecting portion of the light pipe.

REFERENCES:
patent: 4371916 (1983-02-01), De Martino
patent: 4918577 (1990-04-01), Furudate
patent: 4933818 (1990-06-01), Eckmann
patent: 4965950 (1990-10-01), Yamada
patent: 5150960 (1992-09-01), Redick
patent: 5184888 (1993-02-01), Sakuma et al.
patent: 5377083 (1994-12-01), Tada
patent: 5434754 (1995-07-01), Li et al.
patent: 5590945 (1997-01-01), Simms

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