|
|
|
UV Projection Lenses
A range of UVFS+CaF2 triplet lenses designed specifically for high-quality UV micromachining applications.
Key features
- Demagnification range 4 – 20x, optimised at 10x
- Long working distance >75 mm for safe machining
- <1.5 µm resolution with 50%/µm edge contrast
- 2 mm image field
- Perfectly visible correction for through the lens (TTL) viewing
- Fully coated for high efficiency at both UV and visible wavelengths
- High energy-handling capacity
- Models available at popular UV machining wavelengths
Specification
| N° of elements | 3 |
| Materials | UVFS+CaF2 |
| Clear aperture | 22 mm |
| Length | 15.6 mm |
| Mount shoulder to s1 | 7 mm |
| Shoulder thread | M45 x 0.75 |
| Effective focal length | 86.9 mm |
| Demagnification | Range = 4 – 20xOptimum = 10x |
| Object-image distance | 1 055 mm |
| Back focal distance | 88.4 mm |
| N.A. | 0.105 |
| Field | 2 x 2 mm |
| Image distortion | 5 x 10-5 |
| Resolution 15–85% | <1.5 µm |
| Point spread function |  |
| Edge contrast profile |
|
