Lighting device and method for producing white light

A lighting device and white light technology, applied in electrical components, electric solid state devices, circuits, etc., can solve problems such as inability to operate flexibly, increase production costs, and obvious deviations in white light color, and achieve size reduction, price reduction, and quantity reduction. Effect

Inactive Publication Date: 2017-04-05
DELTA ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The object of the present invention is to provide a lighting device and a method for generating white light, so as to prevent the occurrence of obvious deviations in the color of white light, solve the problem that the operation of mixing light cannot be performed flexibly, and avoid the increase in production costs

Method used

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  • Lighting device and method for producing white light
  • Lighting device and method for producing white light
  • Lighting device and method for producing white light

Examples

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Embodiment Construction

[0028] The following examples are described in detail with reference to the accompanying drawings, but the provided examples are not intended to limit the scope of the present invention, and the description of the structure and operation is not intended to limit the order of its execution, any structure recombined by components, The resulting devices with equivalent effects are within the scope of the present invention. In addition, the drawings are for illustration purposes only and are not drawn to original scale.

[0029] As used herein, "about", "approximately" or "approximately" generally means that the error or range of the value is within 20%, preferably within 10%, and more preferably within five percent. If there is no explicit statement in the text, the numerical values ​​mentioned are regarded as approximate values, that is, the error or range indicated by "about", "approximately" or "approximately".

[0030] In addition, regarding the "coupling" or "connection" u...

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Abstract

The invention discloses a lighting device and a method for generating a white light. The lighting device includes a first light emitting element, a second light emitting element, and a third light emitting element. Light emitted by the third light emitting element is selectively mixed with the light emitted by the first light emitting element and the second light emitting element, to form white light with chroma coordinate points locating approximately on a blackbody curve, and the color of the light emitted by the third light emitting element is determined by a linear relation of light wavelengths of the light emitted by the first light emitting element and the second light emitting element and corresponding coordinate points of the white light color temperature. With the lighting device and the method for generating the white light, distinct color difference of the white light is avoided.

Description

technical field [0001] The present invention relates to a lighting device, and in particular to a lighting device with variable color temperature. Background technique [0002] With the advancement of science and technology, users' demand for lighting is increasing day by day, and their requirements for lighting quality are also gradually increasing. In recent years, light-emitting diodes (LEDs) have gradually replaced traditional light sources. Compared with traditional light sources, light-emitting diodes have the advantages of good luminous efficiency, long life, high reliability, and small size, so their application range very broad. [0003] As for the current lighting device that generates white light, it can mix light through components that generate cool white light and components that generate warm white light, so that the lighting device can emit corresponding white light according to different settings. [0004] However, in the above method, the chromaticity coo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L25/075
Inventor 廖文甲林立凡薛清全陈世鹏
Owner DELTA ELECTRONICS INC
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