Product Features
Black arrow on periphery. Front and back surfaces coated with magnesium fluoride. Chamfer edges 0.010 in. To 0.015 in. By 40 to 50 deg. Rim and chamfers ground.
Detail Specifications
Diameter:
Between 2.123 inches and 2.125 inches
Axial Thickness:
Between 0.464 inches and 0.472 inches and 0.278 inches and 0.286 inches
Compound Lensaxial Thickness:
Between 0.742 inches and 0.758 inches
Equivalent Focal Length:
8.126 inches
Back Focal Length:
7.772 inches
Front Focal Length:
7.992 inches
Refraction Index:
1.5310 and 1.6030
Abbe Constant:
62.100 and 38.000
Compound Lens Style:
Doublet
Individual Lens Style:
Double convex and meniscus diverging
Element Left Surface Radius:
-3.167 inches and 5.391 inches
Element Right Surface Radius:
-3.167 inches and 12.399 inches
Material:
Glass, optical, mil-g-174, class 1, grade b, type 531-621 and type 603-380
Material:
Glass, optical, mil-g-174, class 1, grade b, type 531-621 and type 603-380
Fsc Application Data:
Receiver-transmitter, laser
Item Name:
Lens,telescope
Manufacturer Part Numbers
No other part numbers with same form, fit, and function found.