Full-automatic DLP (Digital Light Processing) light machine position adjusting method and device

Abstract

The invention relates to the field of optical projection system and in particular to a full-automatic DLP (Digital Light Processing) light machine position adjusting method and a device. The method comprises: taking a picture of a screen picture image of a DLP play test picture; processing the taken image to obtain an adjusting parameter; and controlling an electric six-axis adjusting platform to adjust the relative position of a light machine and a screen in the DLP according to the adjusting parameter so as to adjust the screen picture. The method provided by the invention can full-automatically adjust the relative position of the light machine and the screen of the DLP to greatly improve the adjusting efficiency and save a large amount of manpower and physical resources. Besides, the adjusting parameter of the light machine position in the invention is obtained by processing the picture image actually displayed according to the picked up screen, thereby eliminating the individual subjectivity and improving the light machine position adjusting accuracy so as to improve the screen display effect.

Description

technical field [0001] The invention relates to the field of optical projection systems, in particular to a fully automatic DLP optical machine position adjustment method and device. Background technique [0002] DLP is an optical projection system. The position and size of the projection screen are closely related to the optical path. Therefore, before DLP leaves the factory, in order to ensure that the screen is in the middle of the screen and displayed on the full screen to achieve the best display effect, it is necessary to adjust the distance between the optical machine and the screen. Relative position; the adjustment of light and machine has gone through two stages of development: 1. Manual six-axis adjustment, fix the DLP on the precision mechanical six-axis adjustment table, and manually adjust the six-axis adjustment according to the relative position of the projected picture on the screen The offset of the table in six directions in space (up, down, left, right, f...

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Problems solved by technology

[0003] At present, these two methods require testers to observe the display effect of the screen in real time in front of the screen to determine which of the six axes needs to be adjusted, the adjustment direction and the adjustment amount, and experienced testers need to adjust many times to achieve a better Good effect. At the same time, because different testers are more subjective in observing the screen, the effect adjusted by different testers will be different.

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