Illumination – Plural light sources – With modifier
Patent
1989-02-08
1990-09-04
Husar, Stephen F.
Illumination
Plural light sources
With modifier
362234, 362263, 362309, 362812, 40560, F21V 500
Patent
active
049549359
ABSTRACT:
A new and improved lighting system for illuminating signs such as billboards and the like which increases the amount of light illuminating the light from a light source by 15 to 20% as compared with previous systems and decreases the variance of illumination intensity by 50%.
REFERENCES:
patent: 2746187 (1956-05-01), Ennever
patent: 4037341 (1977-07-01), Odle et al.
patent: 4451875 (1984-05-01), Odle et al.
patent: 4575783 (1986-03-01), Hammond
Hammond Douglas S.
Odle Herbert A.
Holophane Company, Inc.
Husar Stephen F.
Quinn Cornelius P.
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