... /triangle/triangular/ rectangular/roof/wedge/dove/cube corner prism reflector/front surface mirror Prism is used for changing the light direction, inverting ... light, etc.Optical prism types: right angle prism, triangle prism, quadrilateral prism, penta prism, hexagonal prism, roof prism, wedge prism, dove prism, cube corner prism, cube prism, cemnented prism. Optical coatings such ...