Direction dependent line light source

Details Direction dependent line light source Direction dependent line light source

1990-01-10

1991-08-27

Lazarus, Ira S.

Illumination

Illuminated scale or dial

Edge illuminated modifier or light rod/pipe

362 32, 362 27, 362242, 362243, 362293, F21V 800

Patent

active

050438506

ABSTRACT:
A light source substantially longer than its diameter exhibits two different optical characteristics, such as two different colors, depending upon the direction along the long axis from which it is viewed. The light source comprises a light conduit employing total internal reflection and two illumination sources directing light into the light conduit from opposite ends.

REFERENCES:
patent: 3386043 (1968-05-01), Marcatili et al.
patent: 3436141 (1969-04-01), Comte
patent: 3506331 (1970-04-01), Kompfner
patent: 3583786 (1971-06-01), Marcatili
patent: 3832029 (1974-08-01), Bryngdahl
patent: 3913872 (1975-10-01), Weber
patent: 3973828 (1976-08-01), Onoda et al.
patent: 4120332 (1978-12-01), Rowe
patent: 4157209 (1979-06-01), Amendolia
patent: 4422719 (1983-12-01), Orcutt
patent: 4453803 (1984-06-01), Hidaka et al.
patent: 4459642 (1984-07-01), Mori
patent: 4464705 (1984-08-01), Horowitz
patent: 4636036 (1987-01-01), Pasquali
patent: 4805984 (1989-02-01), Cobb, Jr.

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