| 摘要 |
PURPOSE: A screen optical structure for a dashboard is provided to uniform the brightness of a screen by removing hot-spot phenomenon and to improve the brightness by twice to twelve times. CONSTITUTION: A screen optical structure for a dashboard comprises a small size projector(5) and a lens screen(100). The lens screens comprises a condensing lens(1) and a screen plane(2). A back mirror(8) is formed between the small size projector and the lens screens. A secondary condensing lens is formed on the tip end of the condensing lens. A surface lens and a surface film are formed on the front side of the screen plane. The lens screens are made of a transparent material of plastic and glass. |
