Illumination – Illuminated scale or dial – Edge illuminated modifier or light rod/pipe
Patent
1989-06-12
1990-02-20
Husar, Stephen F.
Illumination
Illuminated scale or dial
Edge illuminated modifier or light rod/pipe
362 30, 362 31, 116287, G01D 1128
Patent
active
049031716
ABSTRACT:
A panel for illuminating an object such as an instrument in at least one aperture therein while minimizing the amount of light directly transmitted toward the front of the panel. A portion of the panel is integrally formed of light transmitting material with at least one aperture having a cylindrical portion extending partially into the front of the panel towards the object to be viewed and outwardly beveled edges on at least a portion of the remainder of the aperture toward the object for emitting light and illuminating the object, the angle of the beveled edges and the depth of the cylindrical portion being selected such that transmission of the emitted light in the direction of the front of the panel is minimized.
REFERENCES:
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patent: 4658690 (1987-03-01), Ohe
Horst Everett J.
Livezey Jerry L.
Husar Stephen F.
Meier Harold E.
SFENA Corporation
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