SY-820PT Quartz glass plano convex lens, Optical lens, Flat convex lens, dia:25.4mm, f:40.0mm
Amazon.com Price: $53.50 (as of 12/27/2020 20:46 PST- Details)
Description
Quartz glass plano-convex lens
Materials: UV quartz glass
Diameter: 25.4mm
Deviation of Diameter: +0.0 / -0.20
Aperture:> 90%
Focal Length (f ‘): 40.0mm
Deviation of Focal length(Df): ± 2.0%
Back focal length(fb): 35.48
Thickness of center(Tc): 6.6
Deviation of thickness of center(DTc): ± 0.1
Thickness of edge (Te): 1.49
Deviation of center: 3 ‘
Diaphragm: 1~5
Local diaphragm: 0.2~0.5
Clearing: IV stand
Coating: no coating (coated lens can be provided if needed)
Weight: 4.7
Additional information
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