Illumination device

Details Illumination device Illumination device

1995-09-27

1997-01-14

Lazarus, Ira S.

Illumination

Modifier mountable on light source envelope

362326, 362375, 362800, F21M 314

Patent

active

055932231

ABSTRACT:
An illumination device consists of a light emitting element, a casing for supporting the light emitting element, and a colored cap which covers the light emitting element. The cap has a flat top surface so that the device can be held by suction stably at the top surface by means of a suction nozzle that is used commonly for other electronic parts and can be carried and mounted on a circuit board by the automatic part mounting equipment. The cap also has the formation of a curving surface section between the flat top surface and cylindrical section so that an increased amount of light is transmitted in the up-oblique direction through the curving surface section, thereby compensating the degraded light distribution caused by the formation of the flat top surface.

REFERENCES:
patent: 4195330 (1980-03-01), Savage, Jr.
patent: 4959761 (1990-09-01), Critelli et al.
patent: 5113329 (1992-05-01), Lin

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