It is used for optical lens,with high quality and best service.

optical Prism

Penta prism

Material: BK7
A = h = 15 x 15mm
Dimension Tolerance: +0.1mm
Parallelism: 3 sides
Penta angle: 90 degrees +/-2 arc Sec
Flatness: λ/10 at 632.8nm Surface Quality: 20 to 10 scratch and dig
Coating surface polished
Anti reflective AR coated R0 less than 0.5 % at 650(+/-10)nm
Reflectivity: R more than 98% per face at 650nm