The point light sources are set on the lightincident surface.
该多个点光源设置于该导光板光入射面。
2
A photographic filter made of colored glass that modifies the lightincident on a film by selectively absorbing colors. It is used when taking photographs through haze.
有色玻璃镜片，能够有选择地吸收某些色来修正胶片对光的感应效果。用于在烟雾中摄影。
3
As the pump lightincident port of the heating cylinder is provided with the convex lens to increase the light intensity of pump light, the performance of the cavity-cell system is guaranteed.