Optical illumination module

Details Optical illumination module Optical illumination module

2011-08-30

2011-08-30

Truong, Bao Q (Department: 2875)

Illumination

Light source and modifier

Including translucent or transparent modifier

C362S311020, C362S311100, C362S335000

Reexamination Certificate

active

08007139

ABSTRACT:
The present invention relates to an optical illumination module that includes a fixed light source and a plano-convex lens. The fixed light source is a light emitting diode. The plano-convex lens is an aspheric lens with rotational symmetry, and disposed to a specific distance of an optical axis of the fixed light source. The specific distance is greater than or equal to 13.5 millimeter, and is smaller than or equal to 17.5 millimeter. The plane of the plano-convex lens is a light-beam incident plane, and a convex end is a light-beam exit plane. When the fixed light source is disposed at a coordinate origin, the convex curve of the plano-convex lens is composed of a series of points having specific coordinates. When the plano-convex lens shifts within the specific distance, a parallel light beam form the fixed light source can be refracted to achieve an effect of enhancing the uniformity of luminous brightness.

REFERENCES:
patent: 2008/0310166 (2008-12-01), Chinniah et al.

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