If it does from the transparent sheet and glass window null optical viewpoint which has

摘要

(57) Abstract The transparent seat (1), especially, the coating which reflects emission is had, is transmitted in high frequency emission the glass window which also possesses one window little to possess the area which lacks coating, ratio of the area where the window (10) we are formed inside area of the continual area where the seat (1) is limited by this invention, confronts all area, lacks coating, to be small also is 25% at the time of, being distributed in uniform case of non coating area and coating area.