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Home » Products » Lens » BK7 Double Convex Lens
BK7 Double Convex Lens

BK7 Double Convex Lens

The BK7 double-convex lens can be used in many aspects such as laser and imaging. It has two outwardly curved surfaces with equal curvature and a positive focal length, suitable for 1:1 imaging and multi elements systems. Thousands of ready-made radiuses of curvature models are available for selection. In addition, we can manufacture new models as per customers' requirements.

Technical Specifications
Material: BK7
Diameter Tolerance: +0/-0.1mm
Thickness Tolerance: ±0.2mm
Flatness: λ/4 @632.8nm
Clear Aperture: 90%
Focal Length Tolerance: +/-1%
Surface Quality: 40-20
Bevel: <0.25mm x 45 º
Design Wavelength: 587.6nm
Centration: 3 arc min

Note: The price per run of common single wavelength anti-reflection coating is shown below. However, the actual price will fluctuate frequently because of the influence of size, time, quantity, and exchange rate. If you want to know of the current price, you can contact us immediately. Moreover, please skim through the page of coating film on our website for more information.

Catalog No.Diameter
(mm)
Effective FL(mm)Back FL(mm)Radius R1=-R2
(mm)
Center Thickness
(mm)
Edge Thickness
(mm)
Price-UncoatedAR@1064nm double Sides
5--1050-10010.0 50.0 100.0
BJP-L2B-06-01261211.22 12.00 2.30 1.54 $19.4$12.9$51.6$21.0$17.7
BJP-L2B-06-01861817.19 18.19 2.40 1.90 $19.4$12.9$51.6$21.0$17.7
BJP-L2B-06-02462423.20 24.39 2.40 2.03 $19.4$12.9$51.6$21.0$17.7
BJP-L2B-06-03063029.16 30.58 2.50 2.20 $19.4$12.9$51.6$21.0$17.7
BJP-L2B-06-03663635.30 36.85 2.10 1.86 $19.4$12.9$51.6$21.0$17.7
BJP-L2B-10-015101513.62 14.79 4.00 2.26 $21.0$13.7$53.2$21.8$18.5
BJP-L2B-10-020102018.81 20.06 3.50 2.23 $21.0$13.7$53.2$21.8$18.5
BJP-L2B-10-030103028.82 30.40 3.50 2.67 $21.0$13.7$53.2$21.8$18.5
BJP-L2B-10-040104039.20 40.93 2.40 1.79 $21.0$13.7$53.2$21.8$18.5
BJP-L2B-10-050105049.10 51.22 2.70 2.21 $21.0$13.7$53.2$21.8$18.5
BJP-L2B-10-080108078.97 82.16 3.10 2.80 $21.0$13.7$53.2$21.8$18.5
BJP-L2B-15-025152523.50 25.07 4.40 2.10 $21.0$13.7$53.2$21.8$18.5
BJP-L2B-15-030153028.65 30.31 4.00 2.11 $21.0$13.7$53.2$21.8$18.5
BJP-L2B-15-040154038.78 40.71 3.65 2.26 $21.0$13.7$53.2$21.8$18.5
BJP-L2B-15-060156058.90 61.45 3.30 2.38 $21.0$13.7$53.2$21.8$18.5
BJP-L2B-15-080158078.97 82.16 3.10 2.41 $21.0$13.7$53.2$21.8$18.5
BJP-L2B-15-1001510098.92 102.80 3.25 2.70 $21.0$13.7$53.2$21.8$18.5
BJP-L2B-20-030203028.16 30.06 5.40 1.98 $24.2$15.3$56.5$23.4$20.2
BJP-L2B-20-040204038.49 40.56 4.50 2.00 $22.6$14.5$54.8$22.6$19.4
BJP-L2B-20-055205553.93 56.30 3.20 1.41 $22.6$14.5$54.8$22.6$19.4
BJP-L2B-20-070207068.64 71.65 4.10 2.70 $22.6$14.5$54.8$22.6$19.4
BJP-L2B-20-080208078.97 82.16 3.10 1.88 $22.6$14.5$54.8$22.6$19.4
BJP-L2B-20-1002010098.92 102.80 3.25 2.27 $22.6$14.5$54.8$22.6$19.4
BJP-L2B-30-040304037.39 40.00 7.65 1.81 $27.4$17.7$59.7$25.8$22.6
BJP-L2B-30-055305552.92 55.77 6.20 2.09 $24.2$15.3$56.5$23.4$20.2
BJP-L2B-30-070307067.94 71.29 6.15 2.96 $24.2$15.3$56.5$23.4$20.2
BJP-L2B-30-080308078.01 81.66 5.95 3.17 $24.2$15.3$56.5$23.4$20.2
BJP-L2B-30-1003010098.47 102.57 4.60 2.39 $24.2$15.3$56.5$23.4$20.2
BJP-L2B-30-12030120118.37 123.19 4.90 3.07 $24.2$15.3$56.5$23.4$20.2
BJP-L2B-40-060406057.13 60.53 8.50 1.70 $30.6$21.0$62.9$29.0$25.8
BJP-L2B-40-080408077.52 81.41 7.40 2.41 $25.8$17.7$58.1$25.8$22.6
BJP-L2B-40-1004010097.55 102.09 7.35 3.39 $25.8$17.7$58.1$25.8$22.6
BJP-L2B-40-15040150148.31 154.17 5.10 2.49 $25.8$17.7$58.1$25.8$22.6
BJP-L2B-40-20040200198.30 205.84 5.15 3.20 $25.8$17.7$58.1$25.8$22.6
BJP-L2B-40-30040300298.33 309.22 5.05 3.76 $25.8$17.7$58.1$25.8$22.6
BJP-L2B-50-080508076.20 80.72 11.25 3.31 $33.9$22.6$66.1$30.6$30.6
BJP-L2B-50-12050120117.48 122.73 7.55 2.40 $32.3$21.8$64.5$29.8$29.8
BJP-L2B-50-18050180178.36 185.20 4.95 1.56 $30.6$21.0$62.9$29.0$29.0
BJP-L2B-50-25050250248.18 257.46 5.50 3.07 $30.6$21.0$62.9$29.0$29.0
BJP-L2B-50-30050300298.33 309.22 5.05 3.03 $30.6$21.0$62.9$29.0$29.0
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  • Fused Silica Double Convex LensExquisitely manufactured from UV-grade synthetic fused silica, this fused double convex lens comes with outstanding thermal properties, exceptional purity, and excellent environmental durability. Also, it exhibits outstanding transmission property over the ultraviolet waveband, suitable for laser and imaging system.
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