Glue Red Dot Sight Lens

Material

Bk7

Focal length range

R=61.6-214

Transmittance

Red dot 400-600  T>90% 640

R>90%  Red green dot 400-700 T>50%

Surface quality

60/40

Surface flatness

<2λ@635nm

Dimesion tolerance

+/- 0.1