50X, 2nd and 3rd YAG Harmonic Objective Lens

PFL-50-UV-AG-A

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This objective lens can be used for laser machining using pulsed laser of SHG (532nm) YAG laser and FHG (266nm) YAG. Chromatic aberration is suppressed in both the visible and UV laser wavelength, achieving a high transmittance.

Details

◦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 ultra-violet light.
◦Laser Damage Threshold (Typical) 0.09 J/cm² (266nm), 0.2J/cm² (532nm) (Laser pulse width 10ns, repetition frequency 20Hz)

More Information

More Information
Name	50X, 2nd and 3rd YAG Harmonic Objective Lens
Weight	0.4100kgs
Standard Coatings Available	No
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, we offer a dichroic block (DIMC WEB Reference Catalog Code/W2041) and for laser unit with coaxial illumination and observation (OUCI-2).
Remark	-
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. 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.
Image Label	Ultra-violet Objective Lens（NPAL-50-UV-YSF）
Focal length	4mm
Magnification	50×
Numerical Aperture	0.42
Working Distance WD	12mm
Item name	Mplan UV 50x
Design wavelength	266nm
Resolution (λ=550nm)	0.65μm
Focal depth (λ=550nm)	±1.6μm
Pupil diameter	φ3.4mm
Real field of View (Eyepiece φ24mm)	φ0.48mm
Real field of View (Imaging device 1/2-inch)	0.10×0.13mm
Weight	0.41kg

In stock

SKU

PFL-50-UV-AG-A

£9,179.00

50X, 2nd and 3rd YAG Harmonic Objective Lens

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