Siaon Optoelectronic provide a series of precision optical components

Polarizing Cube Beamsplitters split randomly polarized beams into two orthogonal,linearly, polarized components-S-polarizedlight is reflected at a 90deg. Angle while P-polarized light is transmitted. Each beamsplitter consists of a pair of precision high tolerance right angle prisms cemented together with a dielectric coating on the hypotenuse of one of prisms.

Fuzhou Siaon Optoelectronic Technology Co., Ltd. provide Right Angle Prisms

Right angle prisms are used to deviate light by 90 degree or 180 degree. Depending on the orientation of the prisms, right angle prisms produce the inverted left handed image. Utilizing the character of critical angle, highly-efficient reflection inside is one of basic function of right angle prisms. Right angle prisms are easy to be mounted, have better stability and hardness for mechanical stress, are used in telescope and other optical system.
Material: BK7 A Grade Optical Glass
Dimension Tolerance:+0.0, -0.2mm
Clear Aperture: >80%
Flatness: λ/4 632.8nm 
Surface Quality:60-40
Bevel:0.2mm to 0.5mm x 45°
Coating :Uncoated

website:http://siaon.com/optical-component.html