プラスチック視感度補正フィルター(UCF)

概要

論文の詳細を見る
Sensitivity to light, i.e. quantum efficiency, of photodiode and CCD which are used for photodetector of camera and for image sensor of video camera, respectively, shows different dependence on wavelength from human luminosity. Therefore, adjustment of luminous efficiency with photometric filters or luminous efficiency filters is required to actual use for camera and video camera. Hitherto, the optical filters made of specific phosphate glass incorporated with metal ions or sputtered glass have been used as the luminous efficiency filters. However, as to the conventional filters made of glass, several problems such as ghost appearance attributed to reflex, wrong adjustment to luminosity, high hygroscopicity and costly complicated production process have been pointed out. Kureha Chemical Industry Co., Ltd. realized the luminous efficiency filter made of synthetic resin named UCF which has solved the problems mentioned above, and began marketing in 1993 as the first plastic product in the world. In this presentation, the characteristics and the production process of the UCF are discussed.
社団法人映像情報メディア学会の論文
1995-03-17