1Material:optical glass,fused silica,CaF2 Angle tolerance:5" 2Optical parallelism:3' 3Flatness:0.1wavelength

Roof prism is combined with a right angle

prism and a totally internally reflecting roof

attached to the hypotenuse. It can invert and

reverse an image, also, deflect the image

90... Therefore, it is often used in terrestrial

telescopes, viewing systems and  rangefinders.

Material:optical glass,fused silica,CaF2 and optical crystal

Size:10mm-200mm

Dimension tolerance:±0.2mm

Angle tolerance:±5arc sec—5arc min

Optical parallelism:3arc min

Flatness:λ/10—1λ

Surface quality:60—40scratch and dig

Coating:available upon request