LAMP

One or the two surfaces of the lamp tube are provided with high and low reflectance layers alternatively arraged to form a film to reflect infrared but pass visible ray. The thickness of the film is 0.21-0.31 for high reflectance and 1/2x(0.21-0.31) for the top layer of low reflectance, 2x(0.21-0.31...

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Bibliographic Details
Main Authors YUGE YOJI, KAWAKATSU AKIRA, WATANABE TSUDOMU
Format Patent
LanguageEnglish
Korean
Published 21.11.1989
Edition4
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC INCANDESCENT LAMPS
ELECTRICITY
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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Summary:One or the two surfaces of the lamp tube are provided with high and low reflectance layers alternatively arraged to form a film to reflect infrared but pass visible ray. The thickness of the film is 0.21-0.31 for high reflectance and 1/2x(0.21-0.31) for the top layer of low reflectance, 2x(0.21-0.31) for at least one low reflectance layer and 0.21-0.31 for other low reflectance layers. The lamp has high efficiency of lighting with enhanced infrared reflection and visible ray transmission.
Bibliography:Application Number: KR19850003191