Polarized light emitting device

Details Polarized light emitting device Polarized light emitting device

2006-06-14

2009-02-24

Patel, Vip (Department: 2889)

Electric lamp and discharge devices

With optical device or special ray transmissive envelope

Reflector

C313S512000

Reexamination Certificate

active

07495375

ABSTRACT:
A polarized light emitting device including a first reflector, an LED chip, a fluorescent layer, a second reflector and a polarizer with corrugation structure is provided. In the polarized light emitting device, the LED chip emits a first light (e.g. ultraviolet light) confined within a resonant chamber configured by the first reflector and the second reflector, therefore the fluorescent layer can be adequately illuminated by the first light, thus emitting more second light (visible light) and improving the electro-optical transforming efficiency. The second reflector is adapted for reflecting the first light, and allows most of the second light to pass through. The polarizer with corrugation structure disposed outside the resonant chamber is adapted for efficiently polarizing the second light.

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patent: 5962971 (1999-10-01), Chen
patent: 2001/0010449 (2001-08-01), Chiu et al.
patent: 2004/0080808 (2004-04-01), Kawakami et al.
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patent: 2003279746 (2003-10-01), None
patent: 569467 (2004-01-01), None
patent: 569479 (2004-01-01), None
patent: I239671 (2005-09-01), None

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