- Home >
- Welcome to Dayoptics Company!
Lens
BK7 Lenses
| Specifications | |
|---|---|
| Material: | BK7 |
| Design Wavelength: | 546.1nm |
| Design Index: | 1.5183 ± 0.0005 |
| Diameter Tolerance: | +0.0, -0.15mm |
| Paraxial Focal Length Tolerance: | ±2% |
| Centration: | 3 arc minutes |
| Clear Aperture: | >85% |
| Surface Figure: | λ/4@632.8nm |
| Surface Quality: | 60/40 scratch/dig |
| Bevel: | 0.25 mm x 45° |
| Coating: | Uncoated |
BK7 Double Convex Lens
| Part No. | f (mm) | dia (mm) | R1=R2 (mm) | t c (mm) | t e (mm) | t b (mm) | Illustration |
|---|---|---|---|---|---|---|---|
| DCX1201 | 20.0 | 12.7 | 20.01 | 4.0 | 2.0 | 18.6 |  |
| DCX1202 | 25.0 | 12.7 | 25.28 | 3.6 | 2.0 | 23.8 | |
| DCX1203 | 30.0 | 12.7 | 30.52 | 3.3 | 2.0 | 28.9 | |
| DCX1204 | 40.0 | 12.7 | 40.95 | 3.0 | 2.0 | 39.0 | |
| DCX1301 | 25.4 | 25.4 | 24.71 | 9.0 | 2.0 | 22.2 | |
| DCX1314 | 35.0 | 25.4 | 35.09 | 6.8 | 2.0 | 32.8 | |
| DCX1315 | 40.0 | 25.4 | 40.40 | 6.1 | 2.0 | 37.9 | |
| DCX1302 | 50.0 | 25.4 | 50.92 | 5.2 | 2.0 | 48.3 | |
| DCX1316 | 60.0 | 25.4 | 61.40 | 4.7 | 2.0 | 58.5 | |
| DCX1303 | 75.0 | 25.4 | 77.04 | 4.1 | 2.0 | 73.6 | |
| DCX1304 | 100.0 | 25.4 | 103.05 | 3.6 | 2.0 | 98.8 | |
| DCX1305 | 125.0 | 25.4 | 129.02 | 3.3 | 2.0 | 123.9 | |
| DCX1306 | 150.0 | 25.4 | 154.97 | 3.0 | 2.0 | 149.0 | |
| DCX1307 | 200.0 | 25.4 | 206.84 | 2.8 | 2.0 | 199.0 | |
| DCX1308 | 250.0 | 25.4 | 258.70 | 2.6 | 2.0 | 249.1 | |
| DCX1309 | 300.0 | 25.4 | 310.55 | 2.5 | 2.0 | 299.2 | |
| DCX1310 | 400.0 | 25.4 | 413.80 | 2.4 | 2.0 | 399.0 | |
| DCX1311 | 500.0 | 25.4 | 517.91 | 2.3 | 2.0 | 499.2 | |
| DCX1312 | 750.0 | 25.4 | 774.30 | 2.3 | 2.0 | 748.8 | |
| DCX1313 | 1000.0 | 25.4 | 1036.23 | 2.2 | 2.0 | 999.3 |