Optical Glass N-BK7 Dove prisms 

Dove prism is a kind of image rotator. After the light passes through the prism, the image is reversed by 180°. In addition, when the prism is rotated about its optical axis, the rotation angle of the image is twice the rotation angle of the prism. Specifications: Material : N-BK7 Diameter : 1mm ~ 300mm Dimension Tolerance :+0.0/-0.1mm Surface Quality :40/20 or better Angle Tolerance :<3 arcmin Clear Aperture :>90% Surface Flatness : λ/8 , λ/4 Bevel : Protective bevel as needed Coating :Upon your request Realpoo Optics is a professional manufacturer of optical glass lenses, such as Spherical Lens, Glass Rod, Fresnel Lens, Diffraction Grating etc. The optics can be offered with coating or without coating. Welcome to send your inquiry.