Light pipe assembly including a plurality of lenses and...

Details Light pipe assembly including a plurality of lenses and... Light pipe assembly including a plurality of lenses and...

2008-06-30

2009-08-11

Lester, Evelyn A. (Department: 2873)

Optical: systems and elements

Lens

With field curvature shaping

C359S618000, C359S599000, C385S146000, C353S031000, C353S098000, C353S122000

Reexamination Certificate

active

07573644

ABSTRACT:
A light pipe assembly includes a lens set and a holder. The lens set includes a first lens, a second lens, a third lens, and a fourth lens. The first lens has a first surface and a fifth surface adjacent to the first surface. The second lens has a second surface and a sixth surface adjacent to the second surface, and the fifth surface covers the second surface. The third lens has a third surface and a seventh surface adjacent to the third surface, and the sixth surface covers the third surface. The fourth lens has a fourth surface and an eighth surface adjacent to the fourth surface. The seventh surface covers the fourth surface and the eighth surface covers the first surface. Furthermore, the holder is used for encompassing and abutting the lens set.

REFERENCES:
patent: 2005/0046807 (2005-03-01), Hanano
patent: 2005/0111818 (2005-05-01), Wang et al.
patent: 2006/0215265 (2006-09-01), Miyatake et al.

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