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PAL-NIR
Item name
Magnification
Numerical aperture (NA)
Working distance (WD)
Focal length f
Resolution
Focal depth
Pupil diameter
Real field of View (Eyepiece φ24mm)
Real field of View (Imaging device 1/2-inch)
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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.

◦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)

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Guide

▶Available fixed objective lens holder (LHO-26).
W4024
▶When the objective lens is fixed to a 2 axis holder, please consult our Sales Division.
▶▶For laser processing, we offer a dichroic block (DIMC W2041) and for laser unit with coaxial illumination and observation (OUCI-2).

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, there is a possibility that the pulse width will spread.
▶Magnification is the value when using the imaging lens f=200mm. When used in a microscope lens barrel from other manufacturers there may be different magnifications. The actual magnification should be calculated from the ratio of the focal length of the objective lens and the focal length of the imaging lens to verify the focal length of the imaging lens barrel to be used.
▶PAL-20-NIR-HR-LC00/PAL-50-NIR-HR-LC00 is designed in consideration of the thickness of including protective glass. If user removes the protective glass, the objective will not meet the performance specifications noted.

Outline Drawing
■PAL-10-NIR

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■PAL-100-NIR

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■PAL-20-NIR-LC00

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■PAL-20-NIR-HR-LC00

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■PAL-50-NIR-L

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■PAL-50-NIR-HR-LC00

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Typical Transmittance Data
■PAL-NIR

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T: Transmission
How to replace the protective glass unit ofPAL-20-NIR-HR-LC00/PAL-50-NIR-HR-LC00

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Spec
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Part Number
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    JP Yen Stock Qty
PAL-10-NIR
PAL-20-NIR-LC00
PAL-20-NIR-HR-LC00
PAL-50-NIR-L
PAL-50-NIR-HR-LC00
PAL-100-NIRNEW

MplanApo NIR 10x

10×

0.3

31.0mm

20mm

0.92μm

±3.1μm

φ12.0mm

φ2.4mm

0.48×0.64mm

0.2J/cm2  at 1064nm

0.30kg

MplanApo NIR 20x

20×

0.4

20.2mm

10mm

0.69μm

±1.7μm

φ8.0mm

φ1.2mm

0.24×0.32mm

0.2J/cm2  at 1064nm

0.36kg

MplanApo NIR HR 20x

20×

0.45

20.0mm

10mm

0.6μm

±1.4μm

φ9mm

φ1.2mm

0.24×0.32mm

0.2J/cm2  at 1064nm

0.44kg

MplanApo NIR 50x

50×

0.45

15.1mm

4mm

0.61μm

±1.4μm

φ3.6mm

φ0.48mm

0.10×0.13mm

0.2J/cm2  at 1064nm

0.34kg

MplanApo NIR HR 50x

50×

0.67

10.0mm

4mm

0.41μm

±0.61μm

φ5.4mm

φ0.48mm

0.10×0.13mm

0.2J/cm2  at 1064nm

0.48kg

MplanApo NIR 100x

100×

0.53

12.14mm

2mm

0.52μm

±0.98μm

φ2.12mm

φ0.24mm

0.05×0.06mm

0.2J/cm2  at 1064nm

0.34kg

RoHS  

¥105,000

IN STOCK
RoHS  

¥200,000

CONTACT
US
RoHS  

¥200,000

IN STOCK
RoHS  

¥300,000

LOW
RoHS  

¥550,000

CONTACT
US
RoHS  

¥350,000

LOW