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Features
The Plano Concave lenses are made from Fused Silica material, which are manufactured with one concave surface and one plane surface. These lenses have negative focal lengths. These lenses diverge collimated incident light. They form virtual images which are seen through the lens. They are often used to expand light or to increase focal lengths in existing systems. We also offer precision grade plano convcave lens with tighter manufacturing tolerances.

Specifications
Specifications:
Material: Fused Silica
Design Wavelength: 546.1nm, n=1.46008
Diameter Tolerance: +0.0/-0.1mm
Paraxial Focal Length: ±2%
Centration: 3 arc minutes
Surface Figure : l/4 @ 633 nm
Surface Quality: 60/40
Clear Aperture: >80%
Bevel: <0.25mm X 45°
Coating: Uncoated


 
Item# φ(mm) f(mm) R(mm) Tc Te Fb
PCV2-101 12.7 -15.0 6.92 2.0 6.17 -16.41
PCV2-102 12.7 -20.0 9.20 2.0 4.54 -21.38
PCV2-103 12.7 -25.0 11.51 2.0 3.91 -26.38
PCV2-104 12.7 -30.0 13.80 2.0 3.55 -31.37
PCV2-105 12.7 -40.0 18.41 2.0 3.13 -41.38
PCV2-201 25.4 -35.0 16.11 2.0 8.20 -36.36
PCV2-202 25.4 -50.0 23.01 2.0 5.82 -51.38
PCV2-203 25.4 -75.0 34.51 2.0 4.42 -76.38
PCV2-204 25.4 -100.0 46.03 2.0 3.79 -101.42
PCV2-205 25.4 -150.0 69.02 2.0 3.18 -151.39
PCV2-206 25.4 -175.0 80.54 2.0 3.01 -176.43
PCV2-207 25.4 -200.0 92.04 2.0 2.88 -201.42
PCV2-208 25.4 -250.0 115.08 2.0 2.70 -251.50
PCV2-209 25.4 -300.0 138.04 2.0 2.59 -301.41
PCV2-210 25.4 -500.0 230.10 2.0 2.35 -501.50
PCV2-211 25.4 -1000.0 460.10 2.0 2.18 -1001.42
PCV2-401 38.0 -50.0 23.01 3.0 13.03 -52.07
PCV2-402 38.0 -100.0 46.03 3.0 7.10 -102.10
PCV2-403 38.0 -150.0 69.02 3.0 5.67 -152.07
PCV2-404 38.0 -200.0 92.04 3.0 4.98 -202.11
PCV2-405 38.0 -350.0 161.06 3.0 4.13 -352.13
PCV2-406 38.0 -500.0 230.10 3.0 3.79 -502.19