EVALUATION OF A NEW ELLIPSOIDAL INCANDESCENT REFLECTOR LAMP.

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作者：
Evans, M.W.
LaGiusa, F.F.
Putz, J.M.
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Lighting Design and Application: LD and A | 1977年 / 7卷 / 03期
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摘要：
An ellipsoidal reflector incandescent lamp design can save energy and also achieve a lower face luminance than other reflectorized lamps. The new lamp is designated 75ER30, i. e. , 75 watts, ellipsoidal reflector, 30 eighths of an inch in diameter (95 mm), with a maximum overall length of 6- one quarter in (158 mm) and a light center of 3-1/16 in (77 mm). The lamp consists of a partially silvered, blown-ribbon bulb of soda lime and lightly frosted glass. The lamp is rated at 850 lumens and 2,000 hours life.
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页码：22 / 25
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