Brightness compensation for a lamp shade in an optical scanner

Details Brightness compensation for a lamp shade in an optical scanner Brightness compensation for a lamp shade in an optical scanner

1994-06-07

1995-11-21

Dzierzynski, Paul M.

Optical: systems and elements

Miscellaneous

355 71, 362260, 362296, G02B 2700

Patent

active

054693039

ABSTRACT:
An improvement of brightness compensation for a lamp shade in an optical scanner includes a plurality of projections to make a reflector in the lamp shade to form a greater curvature on its lateral sides, thus increase the light-condensing capability of the reflector, and thereby improve brilliance uniformity of a lamp tube.

REFERENCES:
patent: 4891664 (1990-01-01), Kanai

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