Projection screen machining device and projection screen assembly

Abstract

The invention relates to the technical field of flight simulation, in particular to a projection screen machining device and a projection screen assembly. The projection screen machining device comprises a controller, a heating mechanism, a driving mechanism, an adjusting mechanism and a pressurization mechanism; the driving mechanism and the adjusting mechanism are both connected with the controller; the pressurization mechanism is used for fixing a plane screen body and applying pressure to the plane screen body; the heating mechanism is connected with the driving mechanism and is used for heating the plane screen body; the driving mechanism is used for driving the heating mechanism to rotate in a horizontal face; and the adjusting mechanism is connected with the heating mechanism and is used for adjusting the rotating radius of the heating mechanism. According to the projection screen machining device in the embodiment, the aim of machining a double-curved-surface back projection screen is achieved through the heating mechanism, the driving mechanism, the adjusting mechanism and the pressurization mechanism; and the device is a device special for machining the double-curved-surface back projection screen, the automatic degree is high, and the machining efficiency is improved. Meanwhile, automatic adjustment control can be achieved through the controller, and convenience is further brought to use.

Description

technical field [0001] The invention relates to the technical field of flight simulation, in particular to a projection screen processing device and a projection screen assembly. Background technique [0002] At present, the flight simulators of passenger planes, transport planes and helicopters usually use off-axis virtual image viewing systems. The super large collimating mirrors of the viewing system are aspheric curved mirrors pumped by polyester film, and the curvature radius of each surface is It varies with the horizontal angle of the mirror. In order to enable pilots to obtain visual images with the same viewing distance, the curvature radius of the rear projection screen combined with the collimating mirror imaging changes synchronously with the horizontal angle, which is a hyperboloid special-shaped rear projection screen. The radius of curvature changes synchronously with the horizontal angle. The hyperboloid rear projection screen and special-shaped rear project...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a projection screen processing device and a projection screen assembly to solve the technical problem of low processing efficiency in the prior art that there is no special processing device to process and manufacture a hyperboloid rear projection screen

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