Light source

Details Light source Light source

1986-07-07

1988-08-23

Jones, Larry

Illumination

Modifier mountable on light source envelope

362257, 362293, 362296, 362300, 362317, F21M 314, F21V 700

Patent

active

047665262

ABSTRACT:
A light source which is capable of improving lightening efficiency is disclosed. The light source includes a phosphor layer provided at a part of a filter arranged adjacent to a light emitting lamp or arranged so as to serve as a reflection layer so that it may transmit light of the lamp required and be excited by a part of light of the lamp to emit light of a visible region to increase the intensity of light discharged from the light source.

REFERENCES:
patent: 2103029 (1937-12-01), Davies
patent: 2176151 (1939-10-01), Ruttenauer
patent: 3527974 (1970-09-01), Cooper
patent: 3619695 (1971-11-01), Nameda
patent: 3712980 (1973-01-01), Norton
patent: 4047069 (1977-09-01), Akutsu et al.
patent: 4315186 (1982-02-01), Hirano et al.
patent: 4366407 (1982-12-01), Walsh

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