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Apparatus and methods for combining light emitters

A technology of light emitters and light-emitting devices, which is applied in the field of lighting, and can solve problems such as waste, increased manufacturing costs, and reduced usable parts of emitters

Active Publication Date: 2014-02-19
CREELED INC (N D GES D STAATES DELAWARE NEWARK)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, selecting emitters from one or a few bins to provide specific chromaticity and / or luminance characteristics can reduce the usable portion of a batch of emitters, potentially resulting in inefficiencies, waste, and / or increased manufacturing costs

Method used

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  • Apparatus and methods for combining light emitters
  • Apparatus and methods for combining light emitters
  • Apparatus and methods for combining light emitters

Examples

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Embodiment Construction

[0038] Preferred embodiments of the invention will now be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the invention are shown. However, this invention may be embodied in some different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Like numbers refer to like elements throughout.

[0039] It will be understood that although the terms first, second etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish elements. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present invention. As used herein, the term "an...

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PUM

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Abstract

Provided are methods and apparatus for combining light emitters and devices including the same. Embodiments include methods of selecting combinations of multiple light emitters that are grouped into multiple bins. The multiple bins correspond to multiple emitter group regions in a multiple axis color space and multiple luminosity ranges. Such methods may include prioritizing multiple combinations of light emitters from at least two of the bins, each of the combinations including chromaticity values corresponding to a desired color region and a luminosity value corresponding to a specified luminosity range.

Description

technical field [0001] The present invention relates to lighting, and more particularly to selecting lighting elements for use in lighting assemblies. Background technique [0002] Panel lighting assemblies are used in many lighting applications. For example, the lighting panel can be used for general lighting or as a backlight unit (BLU) for LCD displays. Lighting panels typically employ an arrangement of multiple light emitters, such as fluorescent tubes and / or light emitting diodes (LEDs). Important properties of multiple emitters may include uniformity of color and / or brightness in the displayed output. Currently, light emitters may be tested and grouped and / or binned according to their respective output and / or performance characteristics. Grouping can be performed using, for example, chromaticity values ​​such as x, y values ​​used in the CIE 1931 color space created in 1931 by the International Commission on Illumination. In this way, each light emitter can be char...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B33/08G09G3/00H05B44/00
CPCG09G5/026G09G2340/06H05B33/08F21V9/00G09G2320/0626G09G2320/0666H05B33/0803F21V9/20H05B45/20H05B45/00
Inventor 尤晨华J·K·罗伯茨
Owner CREELED INC (N D GES D STAATES DELAWARE NEWARK)