Graphics Reference
In-Depth Information
Fig. 5. The principle diagram of front projection image display optical system
The projector output graphics is imaged on the scattering screen through the plane
imaging mirror, the scattering screen is located in the 1 times plane of spherical
mirror, the graphics is imaged to infinity reflected by the spherical mirror. Because
reflected only 3 times, the loss of brightness is small, the imaging effect is good.
3.2 The Construction of Horizontal Wide Field Angle
Restricted by the production technics, producing the wide area virtual mirror is
difficult. The system adopts the mode of "3+2", namely the combination of 3 blocks
of large virtual mirror and 2 blocks of small virtual mirror, the center angle of large
virtual mirror is 35 degrees, the center angle of small virtual mirror is half of the large
mirror, the overall angle is 140 degrees, the overall is symmetrical. The eye point is
on the front position, viewing angle is 160 degrees. The cost is relatively high,
splicing method is shown in figure 6.
Fig. 6. The splicing scheme of virtual mirror
4
The Transmission Fusion of Video Signal
In the simulator, there has a lot of passenger scene windows, and the scene display
terminal is distant from scene computer, if we use the traditional video cable
transmission, it will cause the interference between the signals, also affect the quality
of the image, and the motion of the platform will cause damage of the cable or
connector, the reliability of system will be greatly reduced.
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