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Target reflection type diffusion sheet head-up display device

A head-up display, reflective technology, used in optical components, optics, instruments, etc., can solve the problems of the image brightness cannot be maximized, the interference phenomenon cannot be effectively solved, and the cost increases.

Inactive Publication Date: 2020-12-04
E LEAD ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In the above-mentioned previous patents, most of them have been able to improve the technology of the current head-up display device, but there are still some deficiencies that need to be overcome, such as the inability to effectively solve the problem of uneven brightness caused by interference phenomena, or the cost increase caused by large structures. problems, as well as the inability to maximize the image brightness, etc., are technical bottlenecks to be broken through

Method used

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  • Target reflection type diffusion sheet head-up display device
  • Target reflection type diffusion sheet head-up display device
  • Target reflection type diffusion sheet head-up display device

Examples

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Effect test

no. 3 example

[0090] Such as Figure 17 As shown, it is the third embodiment of the target reflective diffuser head-up display device of the present invention, including:

[0091] A projection module 1, projecting an image light source L;

[0092] A target reflective diffuser 2 is provided with an elliptical surface, and the elliptical surface is provided with an array of micromirrors 21. The image light source L is projected onto the target reflective diffuser 2, and the target reflective diffuser 2 reflects The image light source L reaches the user's eye box E.

[0093] The feature of the present invention is that the image light source L is projected onto the elliptic surface of the target reflective diffuser 2, and then converged at another focal position of the equivalent target reflective diffuser 2. E position.

no. 4 example

[0094] Such as Figure 18 As shown, it is the fourth embodiment of the target reflective diffuser head-up display device of the present invention, including:

[0095] A projection module 1, projecting an image light source L;

[0096] A target reflective diffuser 2 is an array of micromirrors 21 on a plane or a curved surface, and the image light source L is projected onto the target reflective diffuser 2;

[0097] A reflector 3, which can be a concave mirror, a convex mirror or a plane mirror, the target reflective diffuser 2 reflects the image light source L to the reflector 3, and the reflector 3 reflects the image light source L to the user's eye box E position.

no. 5 example

[0098] Such as Figure 19 As shown, it is the fifth embodiment of the target reflective diffuser head-up display device of the present invention, including:

[0099] A projection module 1, projecting an image light source L;

[0100] A target reflective diffuser 2 is provided with a plane or a curved surface, the plane or curved surface is provided with 21 arrays of the micromirrors, and the image light source L is projected onto the target reflective diffuser 2;

[0101] A reflector 3, which can be a concave mirror, a convex mirror or a plane mirror, and the target reflective diffuser 2 reflects the image light source L to the reflector 3;

[0102] A windshield 4, the reflector 3 reflects the image light source to the windshield 4, and the windshield 4 reflects the image light source L to the position of the user's eye box E.

[0103] The above-mentioned windshield 4 is provided with a reflective film 41 having a translucent and semi-reflective effect, so as to increase the...

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Abstract

The invention discloses a target reflection type diffusion sheet head-up display device, which comprises a projection module and a target reflection type diffusion sheet, and is characterized in thatthe target reflection type diffusion sheet is provided with an array of micromirrors, an image light source projected by the projection module can be reflected and diffused to a designed diffusion area, and the intersection range of the diffusion areas is an eye box, and the projected image can be seen as long as human eyes are within the range of the eye box. Thus, the problem of uneven brightness caused by an interference phenomenon is solved, and the effect of maximizing the image brightness is achieved.

Description

technical field [0001] The present invention relates to a head-up display device with a target reflective diffuser, especially a target reflective diffuser head-up display device that can reduce interference phenomena, so as to reduce the problem of uneven brightness caused by the interference phenomenon, and There is no redundant structure, so the cost is low, and the brightness of the image can be maximized. Background technique [0002] The head-up display technology used in automobiles today is an optical system, generally composed of two main devices: a projector and a stacking mirror; the projector is composed of a signal light source, a projection mirror and other optical components; the signal light source of the projector, It is composed of LCD liquid crystal display or projector and display screen and other devices. The light is emitted from the signal light source, and then projected by the projector onto the combiner on the glass or a special transparent screen, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/01G02B17/02
CPCG02B17/02G02B27/01
Inventor 陈锡勋
Owner E LEAD ELECTRONICS
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