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Automobile head-up display device

A head-up display and automotive technology, applied in projection devices, vehicle parts, transportation and packaging, etc., can solve the problems of poor far-focus imaging effect, difficult to popularize, and large volume, and achieve the goals of improving utilization, relieving fatigue, and reducing volume Effect

Active Publication Date: 2014-05-07
SHENZHEN DIANSHI INNOVATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a car head-up display device, which aims to solve the problems in the prior art that the imaging effect of the far focus of the HUD product is poor and the volume is difficult to popularize

Method used

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Embodiment Construction

[0030] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0031] like figure 1 As shown, from the realization principle of optical mirroring, it can be known that the distance of the image reflected in the eye 203 is the distance c from the human eye 203 to the mirror surface plus the distance b from the mapped image A to the mirror surface. It can be understood that usually the distance from the eye 203 to the reflective mirror cannot be changed, that is, the eye 203 is in a relatively fixed position relative to the reflective mirror. The distance b from A to the reflective mirror, and the distance b from the mapped image A to the reflective mirror is e...

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Abstract

The invention belongs to the technical field of automobile display, and particularly relates to an automobile head-up display device. The automobile head-up display device comprises a shell which is internally provided with an inner cavity. An opening communicated with the inner cavity is formed in one side of the shell. A light source and a light guiding assembly are arranged inside the inner cavity, wherein the light source emits laser in a scanning mode, and the light guiding assembly reflects the laser in a reciprocating mode so as to form multi-stage reciprocating light paths, projects the multi-stage reciprocating light paths to a windscreen of an automobile through the opening and displays an image in the front of the automobile. Therefore, the light source is arranged inside the shell and emits the laser in the scanning mode, and the laser is reflected repeatedly in the reciprocating mode through the light guiding assembly to form the multi-stage light paths, so that the length of the light paths is extended, and telephoto imaging display is achieved. In this way, the display content can be projected in the distance at the front end of the automobile, alternating conversion between head drop and head up and variation adjustment of the focal length of the eyes of a driver are avoided, an excessively-large heat radiation structure does not need to be adopted, the size of the automobile head-up display device is greatly reduced, the light utilization rate is improved, and it is ensured that the display content can be clear and visible even under the strong sunlight.

Description

technical field [0001] The invention belongs to the technical field of automobile display, and in particular relates to an automobile head-up display device. Background technique [0002] Car head-up display (HUD) is a new type of display technology, which uses the principle of optical reflection to project driving information such as vehicle speed in front of the driver, and the projected text and images are adjusted to a long focal distance, which can be convenient It integrates the scene of the outside world with the data displayed on the HUD. [0003] There are two main types of HUD devices currently on the market: [0004] One is the near-throw HUD, which uses LED digital display tubes to form simple graphics and projects the displayed content on the windshield glass. This type of HUD is cheap and easy to install, but the displayed content is single, and the displayed content is close to the windshield. People need to adjust from the far focus on the far road to the c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/01G03B21/20G03B21/14B60R11/02
Inventor 张佳康栋杜振凯李关
Owner SHENZHEN DIANSHI INNOVATION TECH CO LTD
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