Product Description

Fused Silica Double-Concave Lenses

Specification:

Material: BK7 Grade A Optical Glass
Design Wavelength: 546.1nm
Design Index: 1.46008±0.0005
Diameter Tolerance: +0.0, -0.15mm
Paraxial Focal Length: ±2%
Centration: 3 arc minutes
Clear Aperture: >80%
Surface Figure: lambda/4 at 632.8nm
Surface Quality: 60-40 scratch and dig
Protective Bevel

lens15

Part No. f (mm) Φ (mm) R 1/2 (mm) t c (mm) t e (mm) f b (mm)
DCV1201 -15.0 12.7 14.11 2.0 5.0 -15.7
DCV1202 -20.0 12.7 18.71 2.0 4.2 -20.7
DCV1203 -25.0 12.7 23.32 2.0 3.7 -25.7
DCV1204 -30.0 12.7 27.92 2.0 3.5 -30.7
DCV1205 -40.0 12.7 37.12 2.0 3.1 -40.7
DCV1301 -25.0 25.4 23.32 2.0 9.5 -25.7
DCV1302 -35.0 25.4 32.52 2.0 7.2 -35.7
DCV1303 -50.0 25.4 46.32 2.0 5.6 -50.7
DCV1304 -75.0 25.4 69.33 2.0 4.3 -75.7
DCV1305 -100.0 25.4 92.33 2.0 3.8 -100.7
DCV1306 -150.0 25.4 138.34 2.0 3.2 -150.7
DCV1307 -200.0 25.4 184.35 2.0 2.9 -200.7
DCV1308 -250.0 25.4 230.36 2.0 2.7 -250.7
DCV1309 -300.0 25.4 276.36 2.0 2.6 -300.7
DCV1311 -500.0 25.4 460.40 2.0 2.4 -500.7
DCV1312 -1000.0 25.4 920.48 2.0 2.2 -1000.7
DCV1401 -50.0 38.0 46.48 3.0 11.1 -51.0
DCV1402 -100.0 38.0 92.49 3.0 6.9 -101.0
DCV1403 -150.0 38.0 138.50 3.0 5.6 -151.0
DCV1404 -200.0 38.0 184.50 3.0 5.0 -201.0
DCV1405 -350.0 38.0 322.53 3.0 4.1 -351.0
DCV1406 -500.0 38.0 460.55 3.0 3.8 -501.0

Other sizes (and coatings) are available upon request. Ring mounts also available.