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Illumination device with light emitting diodes

A technology of light-emitting diodes and lighting devices, which is applied in the field of general lighting and can solve the problems of expensive lighting devices

Inactive Publication Date: 2010-09-08
XICATO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, lighting fixtures using LEDs are expensive, in part due to the need for the necessary color control electronics and / or sensors to maintain the color point of the light source or to use only the selection of LEDs produced that match the color and / or generality of the application. quantity needs

Method used

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  • Illumination device with light emitting diodes
  • Illumination device with light emitting diodes
  • Illumination device with light emitting diodes

Examples

Experimental program
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Embodiment Construction

[0031] figure 1 and figure 2 Illustrates a perspective view of an embodiment of a light emitting diode (LED) lighting device 100, wherein figure 2 A cutaway view is shown illustrating the inside of the LED lighting device 100 . It should be understood that the LED lighting device defined here is not an LED, but an LED light source or fixture or an integral part of an LED light source or fixture, and that it includes an LED board that includes one or more LED dies or encapsulated LEDs. image 3 A perspective exploded view of the LED lighting device 100 is illustrated. Figure 4A and 4B Illustrated are perspective and cross-sectional views of an embodiment of an LED lighting device 100 in which multiple heat sinks are used. LED lighting device 100 includes one or more solid state light emitting elements, such as light emitting diodes (LEDs) 102 mounted on an LED board 104 that is connected or bonded to a heat spreader or heat sink 130 (shown in image 3 , Figure 4A and...

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Abstract

A light emitting device is produced using a plurality of light emitting diodes within a light mixing cavity formed by surrounding sidewalls. The sidewalls may be integrally formed as part of a surrounding heat sink or alternatively may be an insert into a cavity within a heat sink. The reflective sidewalls may be coated with a diffusing material and / or covered with one or more phosphors. Multiple phosphors are located at different locations of the cavity, e.g., on the sidewalls, a window covering the output port, or on a reflector attached to the bottom of the cavity. The light emitting diodes may be positioned rotationally symmetrically around the optical axis on a board.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefits of Provisional Application No. 60 / 999,496 filed October 17, 2007, Provisional Application No. 61 / 062,223 filed January 23, 2008, and Provisional Application No. 61 / 042,680 filed April 4, 2008 benefit, and is a continuation-in-part of US Application No. 12 / 137,494, filed June 11, 2008, which is hereby incorporated by reference in its entirety. technical field [0003] The present invention relates generally to the field of general lighting and, more particularly, to lighting devices using light emitting diodes (LEDs). Background technique [0004] Due to the limited maximum temperature of the LED chip and the requirement of service life, which is mainly related to the temperature of the LED chip, the use of light-emitting diodes in general lighting is still limited due to the limitation in the light output level or flux produced by the lighting device. . The temperature of the LED ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V9/00F21V7/00F21V29/00F21Y101/02F21V9/40
CPCF21K9/54F21K9/137F21V29/2275F21V29/262H05K1/0206F21Y2103/022F21V29/2231F21V29/02F21V7/22F21V29/004F21K9/56F21V29/2293F21Y2101/02F21V23/0457F21V29/713F21V29/773F21V29/80F21V29/83F21K9/233F21K9/62F21K9/64F21Y2103/33F21Y2115/10F21V7/26F21V7/30
Inventor 杰勒德·哈伯斯马克·A·普曼尼·T·德罗思约翰·S·日贝里彼特·K·曾
Owner XICATO INC