Unlock instant, AI-driven research and patent intelligence for your innovation.

Lens and laser projection system to prevent light spot deformation

A lens and spot technology, applied in the field of lenses and laser projection systems, can solve problems such as spot deformation

Active Publication Date: 2022-02-18
东莞市万德光电科技有限公司
View PDF12 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Please refer to Figure 8 , the current fly-eye lens generally has two rows of identical small lenses on the light incident surface and the light-emitting surface. When the size of the fly-eye lens is too small and requires a large spot, it is easy to cause spot deformation

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Lens and laser projection system to prevent light spot deformation
  • Lens and laser projection system to prevent light spot deformation
  • Lens and laser projection system to prevent light spot deformation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Please refer to figure 1 and figure 2 , the present invention provides a lens 100 for preventing spot deformation, including a lens body 10, and the opposite sides of the lens body 10 are respectively a light incident surface 11 and a light exit surface 12, wherein the light incident surface 11 of the lens body 10 is provided with multiple A light incident lens part 20, a plurality of light incident lens parts 20 form a light incident lens array, the light exit surface 12 of the lens body 10 is provided with a plurality of light exit lens parts 30, a plurality of light exit lens parts 30 form a light exit lens array, light incident The radius of curvature of the lens portion 20 is smaller than the radius of curvature of the corresponding light emitting lens portion 30 .

[0030] Please refer to Figure 7 , the above-mentioned lens for preventing spot deformation, enters through a lens with a small radius of curvature, and then exits through a lens with a large radiu...

Embodiment 2

[0042] Please refer to Figure 5 The lens for preventing spot deformation described in this embodiment is basically the same as that of Embodiment 1, the difference is that the light incident surface 11 of the lens body 10 has a first area 13, a second area 14 and a third area 15 arranged in sequence , the incident lens portion 20 includes a first lens 21 located in the first area 13, a second lens 22 located in the second area 14, and a third lens 23 located in the third area 15, and the radius of curvature of the first lens 21 is larger than that of the second lens 21. The radius of curvature of the lens 22 , the radius of curvature of the second lens 22 is greater than the radius of curvature of the corresponding third lens 23 . In this way, the light is distributed in different areas, so that the luminous flux of each area is distributed regularly, and the beam angle of the light projected from each area is different and can be distributed regularly. It is more suitable fo...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
radiusaaaaaaaaaa
radiusaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a lens and a laser projection system for preventing light spot deformation. The above-mentioned lens for preventing light spot deformation includes a lens body, the lens body has a relative light incident surface and a light exit surface, and the light incident surface is provided with a plurality of light incident lens parts, and a plurality of the light incident lens parts form an entrance A light lens array, the light-emitting surface of the lens body is provided with a plurality of light-emitting lens parts, a plurality of the light-emitting lens parts form a light-emitting lens array, and the light-receiving lens parts correspond to the light-emitting lens parts one by one. The radius of curvature of the light lens part is smaller than the radius of curvature of the corresponding light-emitting lens part; the laser projection system includes a laser and a screen, and also includes the lens for preventing spot deformation, and the lens is arranged between the laser and the screen between. The lens of the invention can prevent the light spot from being deformed.

Description

technical field [0001] The invention relates to the technical field of optical lenses, in particular to a lens and a laser projection system for preventing light spot deformation. Background technique [0002] The fly-eye lens is formed by a series of small lenses. Applying the double-row fly-eye lens array to the lighting system can obtain high light energy utilization rate and uniform illumination of a large area. Fly-eye lenses have broad application prospects in the fields of microdisplays and projection displays. The key to achieving uniform illumination with a double-row fly-eye lens array is to improve its uniformity and illumination brightness. [0003] Please refer to Figure 8 , the current fly-eye lens generally has two rows of identical small lenses on the light-incoming surface and the light-emitting surface. When the size of the fly-eye lens is too small and requires a large spot, it is easy to cause spot deformation. Contents of the invention [0004] Base...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G02B3/00G02B27/09G03B21/20
CPCG02B3/0006G02B27/0961G03B21/2033G03B21/208
Inventor 刘剑廖水莲雷强
Owner 东莞市万德光电科技有限公司