A head-up display adjustment method and a device dedicated to implementing the method

Abstract

The invention discloses a head-up display adjustment and calibration method, and a special apparatus for applying the method. The head-up display adjustment and calibration method comprises: the step 1: fixing a datum lens before a head-up display device which does not change a CRT kinescope, wherein the datum lens is a telescope with a reticle or a borescope and a test frame aligns to the datum lens when the head-up display device is energized and displays the test frame; the step 2: deenergizing the head-up display device, and dismounting and changing the CRT kinescope in the head-up display device; and the step 3: energizing the head-up display which changes the CRT kinescope, and adjusting the position of the CRT kinescope until that the datum lens aligns to the test frame. The head-up display adjustment and calibration method takes the telescope or the borescope as the external reference to dismount and change the CRT kinescope in the head-up display device, that is, before dismounting, the test frame displayed on the glass through the old CRT kinescope is taken as the datum; and after a new CRT kinescope is exchanged and the reticle of the datum lens is the datum target position so that the difficulty in precise adjustment and calibration of the character precision of the head-up display is reduced.

Description

technical field [0001] The invention relates to a head-up display adjustment method and a device specially used for implementing the method. Background technique [0002] Head Up Display (HUD), referred to as HUD, is a flight aid commonly used in aircraft. Head-up means that the pilot can see the important information he needs without looking down. HUD uses the principle of optical reflection to project important flight-related information on a piece of transparent glass. This piece of glass is located at the front of the cockpit, and its height is roughly at the level of the pilot's eyes. The projected text and images are adjusted to the infinite focal distance. When the pilot looks forward through the HUD, he can easily compare the outside scene with the HUD. The displayed characters are fused together. The purpose of the HUD design is to prevent the pilot from looking down at the display and data of the instruments, and keep his head up all the time, so as to reduce th...

AI Technical Summary

Problems solved by technology

At present, after replacing the CRT tube or spare ring of the head-up display in the outfield, it is necessary to re-adjust the character accuracy of the replaced head-up display, but there is no special equipment for testing in the outfield, so it is necessary to return the head-up display to repair or carry a theodolite, Large field of view collimator and other equipment are replaced in the field, and the operability and efficiency of this kind of adjustment head-up display device are poor

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