Invention Grant
- Patent Title: Light distribution using a light emitting diode assembly
- Patent Title (中): 使用发光二极管组件进行配光
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Application No.: US11962995Application Date: 2007-12-21
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Publication No.: US07712918B2Publication Date: 2010-05-11
- Inventor: Dennis Siemiet , John Ivey , Francis Palazzolo
- Applicant: Dennis Siemiet , John Ivey , Francis Palazzolo
- Applicant Address: US MI Troy
- Assignee: Altair Engineering , Inc.
- Current Assignee: Altair Engineering , Inc.
- Current Assignee Address: US MI Troy
- Agency: Young Basile
- Main IPC: F21V7/00
- IPC: F21V7/00

Abstract:
A fluorescent light tube retrofit with light emitting diodes (LEDs) that evenly distribute light to avoid bright spots is disclosed. One tube in the form of a conventional fluorescent tube includes two LEDs mounted to the tube on opposite sides of a single circumference of the tube. The LEDs can face the center of the tube, or the LEDs can be offset facing relative to the center of the tube. A reflecting surface can be disposed inside the tube to reflect light evenly toward an arc of the tube. Alternatively, at least one LED can be oriented to direct light into a light pipe that curves around the interior of the tube.
Public/Granted literature
- US20090161359A1 LIGHT DISTRIBUTION USING A LIGHT EMITTING DIODE ASSEMBLY Public/Granted day:2009-06-25
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