IP Library › Granted Patent US 7,766,495
Granted Patent B2
US 7,766,495 · App. 12/213,791 · Granted Aug 3, 2010

Reflector shapes for light emitting diode-polarized light sources

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 7,766,495
App. No.
12/213,791
Granted
Aug 3, 2010
Kind
B2
Abstract

A light-emitting device including a light source that exhibits polarization anisotropy and a reflector that is shaped so that for light emitted in at least two directions from the light source, the angle between the dominant polarization directions after reflecting from the reflector is smaller than the angle between the dominant polarization directions before reflecting from the reflector. In the light-emitting device the light source may be a light-emitting diode chip or one of a plurality of light sources.

Claims (5)

1. A light-emitting device comprising:

a light source that exhibits polarization anisotropy; and

a reflector that is shaped so that for light emitted in at least two directions from the light source, the angle between the dominant polarization directions after reflecting from the reflector is smaller than the angle between the dominant polarization directions before reflecting from the reflector.

2. The device in claim 1 , wherein the light source is a light-emitting diode chip.

3. The device in claim 1 , wherein the light source is one of a plurality of light sources.

Assignments (3)
MERGER Recorded Aug 7, 2012
From: SAMSUNG LED CO., LTD.
To: SAMSUNG ELECTRONICS CO., LTD.
Reel/Frame 028744/0272 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 22, 2010
From: SAMSUNG ELECTRO-MECHANICS CO., LTD.
To: SAMSUNG LED CO., LTD.
Reel/Frame 024723/0532 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 24, 2008
From: SCHUBERT, MARTIN F.; CHHAJED, SAMEER; KIM, JONG KYU; SCHUBERT, E. FRED; CHO, JAEHEE
To: RENSSELAER POLYTECHNIC INSTITUTE; SAMSUNG ELECTRO-MECHANICS CO., LTD.
Reel/Frame 021189/0216 →