Illumination – Light modifier – Refractor
Patent
1998-09-18
2000-12-26
Cariaso, Alan
Illumination
Light modifier
Refractor
362 31, 362327, 362339, F21V 502
Patent
active
061647993
ABSTRACT:
A separation optics structure comprising a transparent unitary body portion extending between a first wide end and a second distal end defines a wedge-shaped structure. The body portion includes a front portion defining a generally planar front illumination surface, a back portion having a plurality of beveled redirecting facets spaced apart by intermediate areas, and a plurality of optics elements disposed within the intermediate areas. A first light source is coupled at the wide end to transmitted light longitudinally through the body portion toward the redirecting facets. The redirecting facets having reflective surfaces transverse to the planar front illumination surface to reflect and scatter the light toward the front surface in a relatively low intensity light distribution. A second light source is coupled adjacent the back portion behind the intermediate areas. The optics elements transmit the light directly through the intermediate areas toward the front surface in a relative high intensity light distribution. The optics elements may also include concave, convex and/or facet for shaping the direct light toward the front illumination surface.
REFERENCES:
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patent: 5128842 (1992-07-01), Kenmochi
patent: 5197792 (1993-03-01), Jiao et al.
patent: 5227773 (1993-07-01), Wu et al.
patent: 5434754 (1995-07-01), Li et al.
patent: 5521796 (1996-05-01), Osakada et al.
Hirmer Gerhard F.
Passera Robert
Cariaso Alan
Decoma International Inc.
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