Device and method for creating an areal light source

Details Device and method for creating an areal light source Device and method for creating an areal light source

1990-06-19

1992-08-04

Lazarus, Ira S.

Illumination

Illuminated scale or dial

Internal light source

362 31, 362330, 362331, 362332, 362800, G02B 528, F21V 800

Patent

active

051364794

ABSTRACT:
A device and method to convert light from a point source into an areal source of displayed light. The reflective faces of dielectric mirrors enclose a point source of light. The mirrors repeatedly reflect the light from the point source inside the enclosure without significant absorption, thereby achieving a random distribution of position coordinates for the light rays departing the areal transmissive surface on the outside of the enclosure. The device and method may be used for backlighting a display or for other areal lighting systems.

REFERENCES:
patent: 3752974 (1973-08-01), Baker et al.
patent: 3853386 (1974-12-01), Ritter et al.
patent: 3910681 (1975-10-01), Elliott et al.
patent: 4043636 (1977-08-01), Eberhardt et al.
patent: 4059916 (1977-11-01), Tachihara et al.
patent: 4524410 (1985-06-01), Kawakatsu et al.
patent: 4573766 (1986-03-01), Bournay, Jr. et al.
patent: 4659183 (1987-04-01), Suzawa
patent: 4729068 (1988-03-01), Ohe
patent: 4933814 (1990-06-01), Sandi
patent: 4937716 (1990-06-01), Whitehead

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