OPTICS
Near Ultra-violet (NUV) Objective Lenses
PAL-NUV
This objective lens can be used for laser machining using pulsed laser of THG (355nm) YAG laser. Chromatic aberration is suppressed in both the visible and UV laser wavelength, achieving a high transmittance.
Optics & Optical Coatings
- With its long working distance and field curvature corrected, its natural observation image is obtained to the periphery of the visual field.
- With its long working infinity correction function; this objective lens can be used for a laser system and coaxial observation.
- It is also used for the observation of near ultra-violet light.
- This objective lens can be used with a pulse laser of visible light (532nm).
- Laser Damage Threshold (Typical) 0.05J/cm2 (355nm), 0.1J/cm2 (532nm) (Laser pulse width 10ns, repetition frequency 20Hz)
Key Specifications
| Magnification (PAL-20-NUV-A) | 20x |
| Focal length f[mm] | 10 |
| Numerical aperture NA | 0.40 |
| Working distance WD[mm] | 17.25 |
| Resolution (λ=550nm)[μm] | 0.69 |
| Focal depth (λ=550nm)[μm] | ±1.7 |
