| 摘要 |
An optical projection system is provided to prevent a DMD(Digital Micro-mirror Device) substrate from coming into contact with a metal buffering member by interposing an insulating member between the DMD substrate and the buffering member to prevent short-circuiting. An optical projection system includes an optical engine(10), a DMD substrate(20), a DMD bracket(30), a buffering member(40), and an insulating member(50). The DMD substrate is combined with the optical engine. The DMD bracket is combined with the DMD substrate to protect the DMD substrate. The buffering member is interposed between the DMD substrate and the DMD bracket. The insulating member is placed between the buffering member and the DMD substrate. The insulating member includes a rectangular insulating sheet.
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