penta prism

penta prism
The custom-made is available upon requests

Material: BK7 A = h = 20 x 20mm

Dimension Tolerance: +0.1mm

Parallelism: 3 sides

Penta angle: 90 degrees +/-5 arc Sec

Flatness: λ/4 at 632.8nm

Surface Quality: 60 to 40

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