Bi-Concave Lenses is like the Plano-Concave lenses in that they are used to produce divergent light. The Bi-Concave is best used when the input beam is converging.
Specifications:
| Material: | Grade A optical glass or Fused Silica |
| Dimension Tolerance: | +0.0, -0.1mm |
| Center Thickness Tolerance: | ±0.1mm |
| Paraxial Focal Length: | ±2% |
| Surface quality: | 60/40 |
| Clear Aperture: | >85% |
| Surface Figure: | λ/4 @633nm |
| Centration: |
3 arc minutes |
| Bevel: | <0.25mm×45° |
| Coating: |
Upon requirement |
Typical Sizes
| ItemNo. | Φ(mm) | f(mm) | R2=R2(mm) | Tc(mm) | Te(mm) | Fb(mm) |
| Material | N-BK7 | |||||
| BICV001 | 6.0 | -15.0 | 15.20 | 2.10 | 1.5 | 14.30 |
| BICV002 | 6.0 | -30.0 | 30.83 | 1.79 | 1.5 | 29.42 |
| BICV101 | 12.7 | -15.0 | 14.65 | 4.89 | 2.0 | 13.27 |
| BICV102 | 12.7 | -20.0 | 20.04 | 4.07 | 2.0 | 18.62 |
| BICV103 | 12.7 | -25.0 | 25.35 | 3.62 | 2.0 | 23.82 |
| BICV104 | 12.7 | -30.0 | 30.55 | 3.33 | 2.0 | 28.89 |
| BICV105 | 12.7 | -40.0 | 41.02 | 2.99 | 2.0 | 39.04 |
| BICV106 | 12.7 | -50.0 | 51.40 | 2.79 | 2.0 | 49.08 |
| BICV107 | 12.7 | -75.0 | 77.45 | 2.52 | 2.0 | 74.24 |
| BICV108 | 12.7 | -100.0 | 103.28 | 2.39 | 2.0 | 99.16 |
| BICV201 | 25.4 | -25.0 | 24.72 | 9.02 | 2.0 | 22.24 |
| BICV202 | 25.4 | -31.7 | 31.55 | 7.34 | 2.0 | 29.15 |
| BICV203 | 25.4 | -35.0 | 35.08 | 6.76 | 2.0 | 32.66 |
| BICV204 | 25.4 | -50.0 | 50.93 | 5.22 | 2.0 | 48.22 |
| BICV205 | 25.4 | -75.0 | 77.09 | 4.11 | 2.0 | 73.63 |
| BICV206 | 25.4 | -100.0 | 103.04 | 3.57 | 2.0 | 98.73 |
| BICV207 | 25.4 | -125.0 | 129.12 | 3.25 | 2.0 | 123.92 |
| BICV208 | 25.4 | -150.0 | 155.10 | 3.04 | 2.0 | 149.00 |
| BICV209 | 25.4 | -175.0 | 181.13 | 2.89 | 2.0 | 174.12 |
| BICV210 | 25.4 | -200.0 | 207.00 | 2.78 | 2.0 | 199.07 |
| BICV211 | 25.4 | -250.0 | 258.90 | 2.62 | 2.0 | 249.12 |
| BICV212 | 25.4 | -300.0 | 310.80 | 2.52 | 2.0 | 299.17 |
| BICV213 | 25.4 | -500.0 | 518.30 | 2.31 | 2.0 | 499.21 |
| BICV214 | 25.4 | -1000.0 | 1037.10 | 2.16 | 2.0 | 999.32 |
| BICV301 | 38.0 | -45.0 | 44.87 | 10.44 | 2.0 | 41.46 |
| BICV302 | 38.0 | -50.0 | 49.97 | 10.50 | 3.0 | 46.40 |
| BICV303 | 38.0 | -100.0 | 102.57 | 6.55 | 3.0 | 97.78 |
| BICV304 | 38.0 | -150.0 | 154.70 | 5.34 | 3.0 | 148.23 |
| BICV305 | 38.0 | -200.0 | 206.70 | 4.75 | 3.0 | 198.46 |
| BICV306 | 38.0 | -350.0 | 362.40 | 4.00 | 3.0 | 348.66 |
| BICV307 | 38.0 | -500.0 | 518.10 | 3.70 | 3.0 | 498.79 |
| BICV308 | 38.0 | -700.0 | 725.60 | 3.50 | 3.0 | 698.84 |
| BICV401 | 40.0 | -63.5 | 64.42 | 8.27 | 1.9 | 60.70 |
| BICV501 | 50.0 | -100.0 | 102.06 | 9.20 | 3.0 | 96.90 |
| BICV502 | 50.0 | -150.0 | 154.27 | 7.10 | 3.0 | 147.60 |
| BICV503 | 50.0 | -200.0 | 206.28 | 6.00 | 3.0 | 198.00 |
| BICV504 | 50.0 | -250.0 | 258.22 | 5.40 | 3.0 | 248.20 |
| BICV505 | 50.0 | -400.0 | 413.87 | 4.50 | 3.0 | 398.50 |
| BICV506 | 50.0 | -450.0 | 465.73 | 4.30 | 3.0 | 448.60 |
| BICV507 | 50.0 | -500.0 | 517.58 | 4.20 | 3.0 | 448.60 |
| BICV508 | 50.0 | -600.0 | 621.28 | 4.00 | 3.0 | 598.70 |
| BICV509 | 50.0 | -800.0 | 828.64 | 3.8 | 3.0 | 798.70 |
| Material | Fused Silica | |||||
| BICV-FS01 | 6.0 | -15.0 | 14.03 | 1.5 | 2.15 | 15.50 |
| BICV-FS02 | 6.0 | -30.0 | 27.84 | 1.5 | 1.82 | 30.51 |
| BICV-FS03 | 12.7 | -15.0 | 14.11 | 2.0 | 5.02 | 15.67 |
| BICV-FS04 | 12.7 | -20.0 | 18.71 | 2.0 | 4.22 | 20.67 |
| BICV-FS05 | 12.7 | -25.0 | 23.32 | 2.0 | 3.76 | 25.68 |
| BICV-FS06 | 12.7 | -30.0 | 27.92 | 2.0 | 3.46 | 30.68 |
| BICV-FS07 | 12.7 | -40.0 | 37.12 | 2.0 | 3.09 | 40.68 |
| BICV-FS08 | 25.4 | -25.0 | 23.32 | 2.0 | 9.52 | 25.68 |
| BICV-FS09 | 25.4 | -35.0 | 32.52 | 2.0 | 7.17 | 35.68 |
| BICV-FS10 | 25.4 | -50.0 | 46.32 | 2.0 | 5.55 | 50.68 |
| BICV-FS11 | 25.4 | -75.0 | 69.33 | 2.0 | 4.35 | 75.69 |
| BICV-FS12 | 25.4 | -100.0 | 92.33 | 2.0 | 3.76 | 100.68 |
| BICV-FS13 | 25.4 | -150.0 | 138.34 | 2.0 | 3.17 | 150.68 |
| BICV-FS14 | 25.4 | -200.0 | 184.35 | 2.0 | 2.88 | 200.69 |
| BICV-FS15 | 25.4 | -250.0 | 230.36 | 2.0 | 2.70 | 250.69 |
| BICV-FS16 | 25.4 | -300.0 | 276.36 | 2.0 | 2.58 | 300.68 |
| BICV-FS17 | 25.4 | -500.0 | 460.40 | 2.0 | 2.35 | 500.69 |
| BICV-FS18 | 25.4 | -1000.0 | 920.48 | 2.0 | 2.18 | 1000.69 |
| BICV-FS19 | 38.0 | -50.0 | 46.48 | 3.0 | 11.12 | 51.02 |
| BICV-FS20 | 38.0 | -100.0 | 92.49 | 3.0 | 6.95 | 101.03 |
| BICV-FS21 | 38.0 | -150.0 | 138.50 | 3.0 | 5.62 | 151.03 |
| BICV-FS22 | 38.0 | -200.0 | 184.50 | 3.0 | 4.96 | 201.02 |
| BICV-FS23 | 38.0 | -350.0 | 322.53 | 3.0 | 4.13 | 351.03 |
| BICV-FS24 | 38.0 | -500.0 | 460.55 | 3.0 | 3.78 | 501.02 |
| BICV-FS25 | 38.0 | -750.0 | 690.59 | 3.0 | 3.52 | 751.02 |
| BICV-FS26 | 38.0 | -1000.0 | 920.64 | 3.0 | 3.39 | 1001.04 |