发明授权
US07589904B2 Projection type image display device 有权
投影型图像显示装置

Projection type image display device
摘要:
Both ends of a transparent cover which is formed of a curved member are fitted to a lens guard and a mirror guard, and a free-shaped surface mirror and a free-shaped surface lens are housed in a sealed space defined within a projection type image display device.
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