| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a light transmission window device for preventing snow accretion being a cover window which is not expensive, prevents the snow accretion with small energy consumption, and transmits sunlight without strong attenuation in an intensity of the sunlight. <P>SOLUTION: A light transmission window device for preventing snow accretion on a solar cell is arranged to cover a surface which receives sunlight in a solar cell module, and transmits the sunlight. The light transmission window device has: a frame constituting the light transmission window device; and a light transmission sheet or a thin plate-like window material which is provided inside of the frame, and has far lighter weight than that of the frame. The window material part vibrates and flicks off snow fallen to adhere or adhered snow by vibrating the light weight window material part by a vibrator which is driven by receiving output from a sensor which detects snowfall and temperature. <P>COPYRIGHT: (C)2013,JPO&INPIT |
