Corner Cube Prisms

Diameter: 12.7 +/-0.2mm
Height: 9.5+/-0.2mm
Material:BK7 Grade A
Clear Aperture: >85% of dimension
Surface Quality:60-40 scratch and dig
Flatness: ??/4 @ 632.8nm
Deviation: +/-20 arc sec
Bevel: 0.25mmx45deg

For Golf RangeFinder
For Golf Flagsticks
 

To enhance the reflective rate of " Corner Cube Prisms coated silver and black paint" of the 3 roof surfaces,we usually coat the roof suface with silver,so that to make it more than 99.9% reflecting the incoming light beam.Evenmore,after coating silver,we put a layer of black paint on the coating to protect it.