Right-angle optical prism

BK7custom

The right angle prisms are often preferable to an inclined mirror in applications involving severe acoustic or inertial loads, because they are easier to mount, and deform much less than mirror in response to external mechanical stress. As long as acceptance angle limitations for TIR from the roof faces are not exceeded, the right angle prisms can serve as a retro reflector, turning beams back to the original direction. Right-angle prism is the most common type of prisms. It is used to re-direct a beam of light at 90 degrees from the the incident direction or used as a 180 beam retro-reflector. They are often coated with various optical coatings to form cubic beam splitters and color separation cubes used in various projection systems. Specifications: Material BK7, UVFS Dimensional tolerances ±0.01mm Clear aperture ≥95%@central area 90˚ angle tolerance ±2 arcmin (General type) ±5 arcsec (Precision type) Pyramidal tolerance ±1 arcmin (General type) ±30 arcsec (Precision type) Surface quality 40-20 S-D Surface flatness <λ/4 @ 632.8 nm Protective chamfers <0.25 mm x 45° Coatings Call us