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.
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)
Specifications
| Part Number | Item name | Magnification | Focal length | NA | Working Distance WD |
Resolution (λ=550nm) |
Focal Depth (λ=550nm) |
Real field of view (Eyepiece φ24mm) |
Real field of view (Imaging device1/2-inch) |
Weight |
|---|---|---|---|---|---|---|---|---|---|---|
| PAL-10-NUV | PlanApo NUV 10x | 10x | 20mm | 0.28 | 30.5mm | 0.98μm | ±3.5μm | φ2.4mm | 0.48×0.64mm | 0.27kg |
| PAL-20-NUV-B | PlanApo NUV 20x | 20x | 10mm | 0.4 | 17.36mm | 0.69μm | ±1.7μm | φ1.2mm | 0.48×0.64mm | 0.29kg |
| PAL-50-NUV-A | PlanApo NUV 50x | 50x | 4mm | 0.45 | 15.1mm | 0.61μm | ±1.4μm | φ0.48mm | 0.10×0.13mm | 0.36kg |
| PAL-100-NUV-A | PlanApo NUV 100x | 100x | 2mm | 0.57 | 11.23mm | 0.48μm | ±0.8μm | φ0.24mm | 0.05×0.06mm | 0.38kg |
| PAL-50-NUV-HR-L-B | PlanApo NUV HR 50x | 50x | 4mm | 0.65 | 9.11mm | 0.42μm | ±0.7μm | φ0.48mm | 0.10×0.13mm | 0.5kg |
| PAL-100-NUV-HR | PlanApo NUV HR 100x | 100x | 2mm | 0.7 | 10mm | 0.39μm | ±0.6μm | φ0.24mm | 0.05×0.06mm | 0.53kg |
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