Detailed Product Wanted Description
Changchun Hengyi Optics co., Ltd could manufacture various Optical Prisms, such as Penta Prisms, Right Angle Prisms, Dove Prisms, PBS Substrate Right Angle Prisms, 45 Degree Reflection Prisms, Roof Prisms, Corner Cube Retroreflectors, Wedges prism, etc.
Right Angle Prisms are usually used to deflect a light beam 90 degree and 180degree as shown. The images passing through the prism are made erect, reversed for 90 degree deflection and inverted for 180 degree deflection, respectively.
Angles: 45 degree, 90 degree and 30" more or less
Material: BK7, fine annealed
Flatness: 1/8 wave
Surface Quality: 10-5 scratch-dig
Clear Aperture: 90%
Penta Prisms
Neither inverting nor reverse imaging
Constant 90 degree deviation
The penta Prism is a five-sided prism, featuring two important properties. First, the image is neither inverted nor reversed while it is deviated by 90 degree. Secondly, it is a constant deflection device,i.e. all the transmitted rays are deviated by the same exact 90 degrees. Slight movement of the prisms does not affect the true right angle. This feature makes the prism useful in range-finders. It is also used in viewfinders of single reflex cameras. The reflecting surfaces are enhanced aluminum coated with black paint overcoat for protection.
Beam Deflection: 90 degree and 3'more or less or 30"more or less
Material: BK7, fine annealed
Dimension: 0.1mm more or less
Flatness: 1/8 wave at reflection surface; 1/4 more or less at transmission surface
Surface Quality: 10-5 scratch-dig
Clear Aperture: 90%
Coatings: Reflecting surfaces are aluminum coated with black paint overcoat. Entrance and exit surfaces are MgF2 AR coated
45 degree Reflection Prisms
Constant 45 degree deviation
The prism is used for 45 degree beam deflection. The reflection face is aluminum coated with black paint for protection.
Beam Deviation: 45 degree and 3' more or less
Material: BK7, fine annealed
Dimension: 0.1mm more or less
Flatness: 1/8 wave at reflection surface; 1/4 wave at transmission surface
Surface Quality: 10-5 scratch-dig
Clear Aperture: 90%
Coatings: specified by customers
