| 摘要 |
PURPOSE:To manufacture a reflection plate for condensing of light without degrading the rate of light condensing by supporting a flat plate material at both ends, and exerting force at the center thereby bending the same in such a way that the sectional shape formed by this satisfies prescribed conditions. CONSTITUTION:Both ends 3 of a flat plate material 2 for reflection are supported and the material is so bent by applying load W at the center that the sectional shape 1 formed by this satisfies f=aL<2>/Y. Here, (f) is focal length, (a) is a constant, L is the length of the material, and Y is the max. deflection rate. Thereby, the reflection plate for condensing of light is obtained easily without degrading the rate of light condensing. |
