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₪ BK7 Double Convex Lenses


BK7 Double-Convex Lens

Specifications

Material: BK7 grade A optical glass
Design Wavelength: 546.1nm
Design Index: 1.5183 ±0.0005
Diameter Tolerance: +0.0, -0.15mm
Paraxial Focal Length: ±2%
Centration: 3 arc minutes
Clear Aperture: >80%
Surface Figure: l/4@632.8nm
Surface Quality: 60-40 scratch and dig
Protective Bevel

Part No. f(mm) (mm) R 1 =R 2 (mm) t c (mm) t e (mm) f b (mm) Price Order
DCX0209 10.0 10.0 9.45 4.9 2.0 8.2 £5.60 order
DCX0201 15.0 12.7 14.66 4.9 2.0 13.3 £5.60 order
DCX0202 20.0 12.7 20.01 4.0 2.0 18.6 £5.60 order
DCX0203 25.0 12.7 25.28 3.6 2.0 23.8 £5.60 order
DCX0204 30.0 12.7 30.52 3.3 2.0 28.9 £5.60 order
DCX0205 40.0 12.7 40.95 3.0 2.0 39.0 £5.60 order
DCX0206 50.0 12.7 51.35 2.8 2.0 49.1 £5.60 order
DCX0207 75.0 12.7 77.30 2.6 2.0 74.1 £5.60 order
DCX0208 100.0 12.7 103.25 2.4 2.0 99.2 £5.60 order
DCX0343 25.4 20.0 25.265 6.1 2.0 23.3 £5.60 order
DCX0342 22.0 20.0 21.577 6.9 2.0 19.6 £5.60 order
DCX0341 20.0 21.0 19.239 8.2 2.0 17.1 £5.60 order
DCX0332 40.0 22.4 40.57 5.1 1.9 38.3 £5.60 order
DCX0325 125.0 25.0 129.132 3.2 2.0 123.9 £5.60 order
DCX0314 31.7 25.4 31.56 7.3 2.0 29.2 £7.00 order
DCX0301 35.0 25.4 35.09 6.8 2.0 32.7 £6.30 order
DCX0302 50.0 25.4 50.92 5.2 2.0 48.3 £5.60 order
DCX0303 75.0 25.4 77.04 4.1 2.0 73.6 £5.60 order
DCX0304 100.0 25.4 103.05 3.6 2.0 98.8 £5.60 order
DCX0305 125.0 25.4 129.02 3.3 2.0 123.9 £5.60 order
DCX0306 150.0 25.4 154.97 3.0 2.0 149.0 £5.60 order
DCX0307 175.0 25.4 180.91 2.9 2.0 174.0 £5.60 order
DCX0308 200.0 25.4 206.84 2.8 2.0 199.0 £5.60 order
DCX0309 250.0 25.4 258.70 2.6 2.0 249.1 £5.60 order
DCX0310 300.0 25.4 310.55 2.5 2.0 299.2 £5.60 order
DCX0311 500.0 25.4 517.91 2.3 2.0 499.2 £5.60 order
DCX0312 1000.0 25.4 1036.23 2.2 2.0 999.3 £5.60 order
DCX0313 25.4 25.4 24.712 9.0 2.0 22.2 £6.30 order
DCX0432 50.0 30.0 50.731 6.5 2.0 47.8 £7.00 order
DCX0435 500.0 30.0 518.306 2.4 2.0 499.2 £7.00 order
DCX0454 110.0 35.0 113.31 4.7 2.0 108.4 £9.90 order
DCX0401 50.0 38.0 49.97 10.5 3.0 46.4 £8.50 order
DCX0402 100.0 38.0 102.52 6.5 3.0 97.8 £8.50 order
DCX0403 150.0 38.0 154.57 5.4 3.0 148.2 £8.50 order
DCX0404 200.0 38.0 206.51 4.8 3.0 198.4 £8.50 order
DCX0405 350.0 38.0 362.13 4.0 3.0 348.7 £8.50 order
DCX0406 500.0 38.0 517.67 3.7 3.0 498.8 £8.50 order
DCX0407 700.0 38.0 725.02 3.5 3.0 698.8 £8.50 order
DCX0411 45.0 38.0 44.836 10.4 2.0 41.4 £8.50 order
DCX0433 50.8 38.1 51.063 9.3 1.9 47.6 £8.50 order
DCX0422 63.5 40.0 64.38 8.3 1.9 60.7 £10.60 order
DCX0501 100.0 50.0 102.06 9.2 3.0 96.9 £12.70 order
DCX0502 150.0 50.0 154.27 7.1 3.0 147.6 £12.00 order
DCX0503 200.0 50.0 206.28 6.0 3.0 198.0 £12.00 order
DCX0504 250.0 50.0 258.22 5.4 3.0 248.2 £12.00 order
DCX0505 400.0 50.0 413.87 4.5 3.0 398.5 £12.00 order
DCX0506 450.0 50.0 465.73 4.3 3.0 448.6 £12.00 order
DCX0507 500.0 50.0 517.58 4.2 3.0 498.6 £12.00 order
DCX0508 600.0 50.0 621.28 4.0 3.0 598.7 £12.00 order
DCX0509 800.0 50.0 828.64 3.8 3.0 798.7 £12.00 order
DCX0608 500.0 80.0 517.678 6.1 2.0 498.0 £12.00 order
DCX0705 250.0 100.0 257.0 13.7 3.9 245.4 £31.70 order


Prices exclude VAT and Carriage - POA for larger quantities for our BK7 Double Convex Lens
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Interesting laser and optics facts ...
The first determination of the speed of light was made by the Danish astronomer Romer in the late 17th century.

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