HUD stray light test equipment

Abstract

The invention discloses HUD stray light test equipment, and belongs to the field of test equipment. The HUD stray light test equipment includes an observation eye box bracket 8, an observation eye boxframe 9 mounted on a steering wheel, and a light source position adjustment mechanism arranged in front of a car, and the light source position adjustment mechanism realizes movement of a light source 16 at any points within a certain range in front of the car to simulate the movement track of the sun in a day. According to the professional stray light test equipment, through combination of translation and rotation, the three primary color light source is used for simulating the movement track of the sun in a day, and each angle can be guaranteed to be fully detected; the test process is completely carried out in a dark room, and is not affected by the external environment, separate testing at different times is not required, the period is short, and the efficiency is high; by adjusting the position of the light source for testing, testers can detect in the observation eye box frame 9 without dead angle, and observation of most drivers can be simulated; and a HUD assembly can be tested on a sample car before loading, manufactured products are ensured to be qualified, replacement problems after real car assembling are solved, and costs are lowered.

Description

technical field [0001] The invention relates to HUD stray light testing equipment, which belongs to the field of testing equipment. Background technique [0002] A car windshield head-up display is a superimposed display that can present vehicle information on the car's front windshield without the driver shifting his or her gaze from the usual viewpoint. Head-up displays were first used on military aircraft. With the development of technology, head-up displays are gradually being used in the automotive field and other fields. When a typical windshield-type HUD (Head-Up Display) is used in different environments, the sunlight reflected on the surface of the dustproof plate is focused and the sunlight is reflected back and forth between the LCD, the small reflector, and the large reflector before exiting to the human eye The resulting stray light causes bright spots in the imaging area of ​​the HUD, which reduces the comfort of the driver. In order to avoid the above situa...

AI Technical Summary

Problems solved by technology

[0004] The test methods in the prior art cannot fully detect whether the sun has stray light at various angles, and there are loopholes in the test

[0005] The test method in the prior art needs to be irradiated by sunlight outdoors, there are many environmental uncertainties, the test cycle is long, and the test efficiency is low

[0006] The test method in the prior art can only detect whether there is stray light within the range of a driver's fixed eyes, which has great limitations

[0007] The test method in the prior art needs to install the HUD into the whole vehicle for testing, and when stray light is found, the vehicle needs to be dismantled and adjusted, which is costly

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