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Diffuser, laser light source module using same and manufacturing method thereof

A manufacturing method, technology of laser light source, applied in the field of diffuser

Inactive Publication Date: 2020-11-13
DELTA ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the scattering angle of the laser beam needs to be set to a small angle, the manufacturing process of the diffuser will be a big challenge

Method used

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  • Diffuser, laser light source module using same and manufacturing method thereof
  • Diffuser, laser light source module using same and manufacturing method thereof
  • Diffuser, laser light source module using same and manufacturing method thereof

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Embodiment Construction

[0045] A number of implementations of the present invention will be disclosed below with the accompanying drawings. For the sake of clarity, many practical details will be described together in the following description. It should be understood, however, that these practical details should not be used to limit the invention. That is, in some embodiments of the present invention, these practical details are unnecessary. In addition, for the sake of simplifying the drawings, some conventional structures and elements will be shown in a simple and schematic way in the drawings.

[0046] In order to provide a laser beam with a small angle of spread, an embodiment of the present invention provides a laser light source module, including a laser light source and a diffuser. The diffuser contains a colloidal layer, and the laser beam can diffuse through the microstructure of the colloidal layer, and adjust the diffusion angle of the laser beam through the refractive index configuratio...

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Abstract

The invention provides a diffuser comprising a first substrate and a colloid layer. The first refractive index of the first substrate is n1. The colloid layer includes a body and a microstructure. The body is arranged on the first substrate; and the microstructure is arranged on the body, wherein the size of the microstructure is less than the size of the body and the body is arranged between the microstructure and the first substrate. The body and the microstructure are integrated. A second refractive index of the colloid layer is n2. The n1 is larger than the n2.

Description

technical field [0001] The invention relates to a diffuser, a laser light source module using the diffuser and a manufacturing method thereof. Background technique [0002] In recent years, lasers have been used in many fields, for example, lasers are used in lighting and displays, lasers can be modulated into laser light sources, and used in related consumer electronics products, such as optical projectors . [0003] In addition, in the application where the laser is modulated into a laser light source, since the laser beam provided by the laser light source can be focused into a small spot, it can have a very high irradiance. On the other hand, for different requirements, the laser beam provided by the laser light source can have a scattering angle through the diffuser, so that the laser light source can be further applied to spotlights, headlights, projection technology or flat display. However, when the scattering angle of the laser beam needs to be set to a small angl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B5/02G02B1/11G02B1/00
CPCG02B1/00G02B1/11G02B5/0205G02B5/021G02B5/0278
Inventor 张克苏吕俊贤周彦伊陈琪
Owner DELTA ELECTRONICS INC