发明名称 Glide path lighting system
摘要 Disclosed is a glide path lighting system which is provided with a lens, a light source, and a screen whether or not constructed as a color filter disposed in the focal plane of the lens between the lens and the light source. The lens is provided with a diaphragm having an opening which is wider in the horizontal direction than in the vertical direction.
申请公布号 US4222027(A) 申请公布日期 1980.09.09
申请号 US19770797869 申请日期 1977.05.17
申请人 U.S. PHILIPS CORPORATION 发明人 MIKKERS, JOHANNES C. J.
分类号 G02B27/00;B64F1/18;B64F1/20;(IPC1-7):B64F1/18;F21V11/08 主分类号 G02B27/00
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