Light signaling device

Details Light signaling device Light signaling device

1996-04-19

1997-04-01

Phan, James

Optical: systems and elements

Signal reflector

359527, 359529, 116 20, G02B 512

Patent

active

056172478

ABSTRACT:
A method and apparatus is described for producing a signaling device which uses sunlight or moonlight to signal a target by retroreflecting light through a window provided on the light reflective material of a mirror. A specular light reflective material with an opening coincident with the first opening is provided on the light reflective side of the mirror to aid in alignment of the mirror with the target.

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patent: 4755425 (1988-07-01), Huang
patent: 5528421 (1996-06-01), Kashibuchi

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