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Light conversion member and lighting device including the light conversion member

A technology of light conversion and components, which is applied in lighting devices, components of lighting devices, semiconductor devices of light-emitting elements, etc., and can solve problems such as excitation light loss

Active Publication Date: 2018-05-11
LG INNOTEK CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At the same time, some excitation light may be lost due to Fresnel reflection from the incident surface when it is incident on the light converting member

Method used

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  • Light conversion member and lighting device including the light conversion member
  • Light conversion member and lighting device including the light conversion member
  • Light conversion member and lighting device including the light conversion member

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Embodiment Construction

[0018] Although the invention is capable of various modifications and has several embodiments, specific exemplary embodiments are shown in the drawings and will be described in detail in the detailed description. However, the present invention is not limited to these examples, and it should be understood that the present invention includes all equivalents and substitutions included in the technical scope and spirit of the present invention.

[0019] Various components may be described using terms including ordinal numbers such as 'first', 'second', etc., but the components are not limited by these terms. These terms are only used for the purpose of distinguishing one component from another. For example, a first component may be called a second component, and similarly a second component may be called a first component, without departing from the scope of rights of the present invention. The term "and / or" includes a combination of multiple items or any one of multiple items. ...

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Abstract

Disclosed are a light conversion member and a lighting device including the light conversion member. The light converting member includes: an incident surface on which the laser beam is incident, including a concave portion; and an output surface, in which the wavelength of the laser beam is converted, and output has a converted a laser beam of a later wavelength, wherein the shape of the concave portion is formed to correspond to the wavefront shape of the laser beam.

Description

technical field [0001] The present invention relates to a light converting member and a lighting device comprising the same. Background technique [0002] A light emitting element is a device that converts electricity into light. Light emitting diodes (LEDs), laser diodes (LDs), lasers, etc. are typical light emitting elements. [0003] Recently, since the demand for high-efficiency low-power light sources has increased, active research on lasers, LDs, and high-power LEDs is underway. [0004] Generally, high-efficiency low-power light sources emit excitation light having a wavelength of 500 nm or less, and light conversion members such as phosphors and quantum dots can convert the excitation light into visible light for use in lighting devices. [0005] At the same time, some excitation light may be lost due to Fresnel reflection from the incident face when it is incident on the light converting member. Contents of the invention [0006] The present invention relates t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21K9/64F21V13/12
CPCF21V9/40F21S2/00H01L33/507F21V7/06F21Y2115/30F21Y2115/10F21V9/30F21K9/64F21V13/08H01S5/0087H01S5/005
Inventor 李昌奕
Owner LG INNOTEK CO LTD