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Laser projector

A technology of laser projection and blue laser, which is applied in the direction of projection devices, optics, optical components, etc., can solve the problems of laser projection device volume increase, and achieve the effect of saving occupied space and reducing volume

Inactive Publication Date: 2014-10-29
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in a conventional laser projection device, three beam splitters need to be provided, resulting in an increase in the volume of the entire laser projection device

Method used

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Experimental program
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Embodiment Construction

[0013] see figure 1 A laser projection device 1 in an embodiment of the present invention includes a substrate 10 , a light emitting element 20 disposed on the substrate 10 , and a beam splitter 30 disposed on the light output path of the light emitting element 20 .

[0014] The substrate 10 is a flat board. The light emitting element 20 and the beam splitter 30 are disposed on one surface of the substrate 10 , and a circuit structure (not shown) is disposed on the surface. In this embodiment, the substrate 10 may be made of insulating materials such as silicone resin or epoxy resin.

[0015] The light emitting element 20 includes a first light emitting chip 21 , a second light emitting chip 23 and a third light emitting chip 25 . The first light-emitting chip 21 , the second light-emitting chip 23 and the second light-emitting chip 25 are all laser light-emitting chips, and are arranged on the substrate 10 at intervals. The light emitting chips 21 , 23 , 25 are electricall...

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PUM

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Abstract

A laser projector comprises a substrate, a first luminous chip, a second luminous chip and a third luminous chip which are arranged on the substrate and a spectroscope which is disposed on the substrate and positioned on a light-emitting path of the luminous chips. The spectroscope contains a first side surface, a second side surface and a third side surface for connecting the first side surface and the second side surface. The first side surface, the second side surface and the third side surface are respectively arranged corresponding to the three luminous chips one to one. Light emitted from the luminous chips pass through the spectroscope to be corrected to the same direction for emission and mixing.

Description

technical field [0001] The invention relates to a projection device, in particular to a laser projection device. Background technique [0002] The laser projection device is a new type of projection equipment, and has received widespread attention because the projected image has a larger color gamut, higher brightness, contrast and color saturation. [0003] A traditional laser projection device includes a substrate, a green light emitting diode, a red light emitting diode, a blue light emitting diode arranged at intervals on the substrate in sequence, and three beam splitters located on one side of these light emitting diodes and correspondingly arranged at intervals. The light emitted by the light emitting diodes is corrected by the corresponding three beam splitters to emerge in the same direction and mixed. [0004] However, in a conventional laser projection device, three beam splitters need to be provided, resulting in an increase in the volume of the entire laser pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/18G02B27/10G03B21/20
Inventor 吴开文
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD