Infrared (NIR) Objective Lens / PAL-10-NIR
This is a high NA infinity corrected objective lens for laser processing (femtosecond laser and fundamental of YAG laser). You can also observe the laser beam coaxially with a laser processed surface that is designed to reduce the aberration of the visible wavelength.
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Part Number
PAL-10-NIR
◦With its long working distance and field curvature corrected, its natural observation image is obtained to the periphery of the visual field.
◦It is the long working infinity correction function that is used to introduce a laser system and coaxial observation.
◦It is also used for the observation of infrared light.
◦PAL-20-NIR-LC00/PAL-20-NIR-HR-LC00/PAL-50-NIR-HR-LC00 include protective glass unit (t=1.8mm). The protective glass will help protect the objective lens from debris spattering and scattered by laser processing. The protective glass unit can be replaced.
◦These variety of objective lens can be used with a pulse laser of visible light such as 532nm. The damage threshold of each lens is 0.1J/cm2 at 532nm, 0.2J/cm2 at 1064nm (reference). (Laser pulse width 10nSec, repetition frequency 20Hz)
◦It is the long working infinity correction function that is used to introduce a laser system and coaxial observation.
◦It is also used for the observation of infrared light.
◦PAL-20-NIR-LC00/PAL-20-NIR-HR-LC00/PAL-50-NIR-HR-LC00 include protective glass unit (t=1.8mm). The protective glass will help protect the objective lens from debris spattering and scattered by laser processing. The protective glass unit can be replaced.
◦These variety of objective lens can be used with a pulse laser of visible light such as 532nm. The damage threshold of each lens is 0.1J/cm2 at 532nm, 0.2J/cm2 at 1064nm (reference). (Laser pulse width 10nSec, repetition frequency 20Hz)
Catalog Code | W3457 |
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RoHS | Yes |
CE | No |
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Guide | ▶Available fixed objective lens holder (LHO-26). WEB Reference Catalog Code/W4024 ▶When the objective lens is fixed to a 2 axis holder, please consult our Sales Division. ▶▶For laser processing |
Attention | ▶When an objective lens is used in laser processing, use the diameter of the incident beam to extend to a size of half the pupil diameter (1/e2). A small light spot cannot be achieved when the incident beam is too narrow. Please note if there is a laser energy density increase, there will be a high possibility of damage to the objective lens. ▶The surface of an objective lens can be contaminated by debris during processing. To avoid this, please have sufficient working distance (WD) and insert a thin protective glass on the objective. ▶If the incident laser beam femtosecond is below 100fs |
Laser Damage Threshold | 0.2J/cm2 at 1064nm |
Numerical aperture (NA) | 0.3 |
Real field of View (Eyepiece φ24mm) | φ2.4mm |
Real field of View (Imaging device 1/2-inch) | 0.48×0.64mm |
Item name | MPlanApo NIR 10x |
Pupil diameter | φ12.0mm |
Working distance (WD) | 31.0mm |
Weight | 0.30kg |
Focal length f | 20mm |
Focal depth | ±3.1μm |
Magnification | 10× |
Resolution | 0.92μm |