Side-emitting light-emitting element and packaging lens thereof

Details Side-emitting light-emitting element and packaging lens thereof Side-emitting light-emitting element and packaging lens thereof

2006-07-14

2008-10-21

Ton, Anabel M (Department: 2875)

Illumination

Light modifier

Refractor

C362S337000, C362S331000, C362S326000

Reexamination Certificate

active

07438445

ABSTRACT:
A side-emitting light-emitting element and a packaging lens thereof, wherein the packaging lens comprises an incident surface, a reflective surface, a first refractive surface, and a second refractive surface. The first refractive surface has zigzag surfaces. After a light from a light source enters into the packaging lens through the incident surface, a portion of the light is reflected by the reflective surface to the first refractive surface via total internal reflection to vertically penetrate the first refractive surface and then proceeds along a first optical path. The other portion of the light is refracted by the second refractive surface to penetrate the second refractive surface and then proceeds along a second optical path, which is parallel to the first optical path. A zigzag surface of the first refractive surface avoids from undesired lights reflected by the first refractive surface.

REFERENCES:
patent: 6598998 (2003-07-01), West et al.
patent: 6679621 (2004-01-01), West et al.
patent: 2004/0141323 (2004-07-01), Aynie et al.

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