Narrow-angle diffuser head up display

Abstract

The invention discloses a narrow-angle diffuser head up display, comprising a projecting module, a narrow-angle diffuser and a reflecting mirror. By means of the array of a micro-concave mirror, the most ideal narrow-angle diffuser can be provided for optimizing visual effect. The projecting module is disposed near the reflecting mirror, and the narrow-angle diffuser faces towards the projecting module and the reflecting mirror so that problems of use limit and luminance of the head up display can be resolved, accordingly, driving safety can be further raised.

Description

technical field [0001] The invention relates to a head-up display device with a narrow-angle diffuser, especially a head-up display device that can optimize visual effects. It uses an array of micro-concave mirrors to form a near-ideal narrow-angle diffuser to overcome the HUD head-up display device. To optimize the visual effect and improve driving safety. Background technique [0002] At present, the head-up display technology used in automobiles is an optical system, usually composed of a projector and a stacking mirror, wherein the projector is composed of a signal light source, a projection mirror and other optical components; the projector The signal light source is composed of an LCD liquid crystal display, or a projector and a display screen or a diffuser. Mirror combiner (special semi-transparent concave mirror), and then the superimposed mirror displays text or images overlapping with the real scene in front of you. This combined head-up display is called CHUD (co...

AI Technical Summary

Problems solved by technology

[0009] In the above-mentioned prior patents, most of them have been able to improve the use function of the current head-up display device, but there are still some bottlenecks that are not easy to overcome, such as:

[0010] 1. In the aforementioned published patent cases, although some technologies have been applied to mirror arrays, there is still a visual gap between the projected standard distance image and the actual distance image. The visual drop phenomenon, for some drivers, is easy to produce visual dizziness, which will affect the safety of driving

[0011] 2. In the application of known technology, due to the long space and distance required for the projection of the light source, this limitation often does not meet this requirement for every model, resulting in the need to use more expensive equipment. Improving the efficiency and brightness of reflection, such as using a projection module (or projector) with a wide viewing angle, to overcome the limitations of the use of HUD head-up display equipment, this method only increases the cost of the equipment, and the projection efficiency is also low, which is Problems commonly faced by current head-up display devices

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