| 摘要 |
PURPOSE:To realize an effective application of the light without securing a close distribution of optical detectors, by providing a light converging film to converge the beams given from the luminant at several areas and then distribution an optical detector at each light converging area on the said light converging film. CONSTITUTION:A surface of the luminant 11 that radiates the fluorescent or phosphorous light with a mutual function to the radiant rays is used for the incident surface of the radiant rays; and a light converging film 12 is provided on the other surface to ensure a convergence of the beams from the luminant 11 at several areas. At the same time, the optical detectors 131-13n are provided at the converging areas. The beams radiated from the luminant 11 and spreading in a 2-dimentional way are converged by the film 12 and then led to the detectors 131-13n. |
