Roof Prism

We are offering roof prism.
The roof prism make the imaging deviate or deflect to be 90°.in fact, roof prism may regard as a right prism, and the bevel replaced as the 90°whole internal reflection roof. The cleanliness and quality of the suface in the whole internal reflection roof is very importance. Only the ray which plumb the plane of incidence and exit facet can circumvolve 90°, and all the other ray, use the similar way with the common right prism produce the different deflexion. The roof prism applyed in the instance which not only need 90°deflexion but also erection imaging. Such as the viewfinder in some instrument.
optical index
material bk7
diameter tolerance +0/-0.2mm
angle tolerance+/-3a
surface flatness i»/4@632.8nm
surface quality 60/40