Plano Concave Lenses
Plano Concave Lenses have one concave surface. It has negative focal length. They are often used to expand light or to increase focal length in existing systems.
| Specifications | |||
|---|---|---|---|
| Material | BK7 |  |
|
| Dimension Tolerance | +0.0, -0.05mm | ||
| Clear Aperture | >85% | ||
| Flatness | λ/4@632.8nm | ||
| Surface Quality | 60-40 | ||
| Centration | 3 arc min | ||
| Design Wavelength | 546.1nm | ||
| Design Index | 1.5183+/-0.0005 | ||
| Paraxial Focal Length Tolerance | +/-2% | ||
| Bevel | 0.25mm x 45° | ||
| Coating | Uncoated | ||
| Part No | Φ(mm) | f (mm) | R1 (mm) | tc (mm) | te (mm) | fb (mm) |
|---|---|---|---|---|---|---|
| PCV1201 | 12.7 | -15.0 | 7.78 | 2.0 | 5.3 | -16.3 |
| PCV1202 | 12.7 | -20.0 | 10.37 | 2.0 | 4.1 | -21.3 |
| PCV1203 | 12.7 | -25.0 | 12.96 | 2.0 | 3.7 | -26.3 |
| PCV1204 | 12.7 | -30.0 | 15.55 | 2.0 | 3.4 | -31.3 |
| PCV1205 | 12.7 | -40.0 | 20.73 | 2.0 | 3.0 | -41.3 |
| PCV1206 | 12.7 | -50.0 | 25.92 | 2.0 | 2.8 | -51.3 |
| PCV1301 | 25.4 | -25.0 | 12.97 | 2.0 | 10.9 | -26.3 |
| PCV1302 | 25.4 | -35.0 | 18.14 | 2.0 | 7.2 | -36.3 |
| PCV1303 | 25.4 | -50.0 | 25.92 | 2.0 | 5.3 | -51.3 |
| PCV1305 | 25.4 | -75.0 | 38.87 | 2.0 | 4.1 | -76.3 |
| PCV1306 | 25.4 | -100.0 | 51.83 | 2.0 | 3.6 | -101.3 |
| PCV1307 | 25.4 | -150.0 | 77.75 | 2.0 | 3.0 | -151.3 |
| PCV1308 | 25.4 | -200.0 | 103.66 | 2.0 | 2.7 | -201.3 |
Note: Other sizes, material and coatings are available upon request.
