An electro-optical device is disclosed. The electro-optical device includes a frame body, a reflection unit and a first laser emitter. The reflection unit is set on a surface of inner side of the frame body. The first laser emitter is set on the surface of inner side of the frame body corresponding to the reflection unit. The first laser emitter emits laser light. A first net of laser light is formed by reflecting the laser light continuously.一種光電裝置包含框形本體、反射單元以及第一雷射發射器。反射單元設置於框形本體的內側表面。第一雷射發射器對應於該反射單元設置於框形本體的內側表面，第一雷射發射器發射雷射光，雷射光經連續地反射而形成第一雷射光網。
