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NYTL/NYDL
Maximum lens Diameter φD
Focal length f
Diameter φDc
Clear aperture De
Length L
Lens mounting thread Ma
Protective window thread Mb
Thread length A
Numerical aperture (NA)
Working distance (WD)
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YAG laser focusing lenses are air spaced triplets or doublets for YAG wavelengths. The elements are made of crown glass of lower dispersion and flint glass of higher dispersion. These lenses are optimized for spherical aberration and coma. With its spot size designed to be smaller than or equal to the diffraction limited spot size for beams at 1064nm.

◦These lenses are chromatically corrected so that any He-Ne guided beam or visible video monitor beam will remain focused in the same position as the YAG beam. All elements are coated with a laser-resistant narrowband multi-layer anti-reflection for YAG: 1064nm and He-Ne: 633nm.
◦We offer optical protective windows to prevent damage to the lens by absorbing high levels of energy from inadvertent back reflection of the incident beam. These protective windows can be easily installed to the focusing side of the lens.

Related product
Products
Technical Data
Documents/Downloads
Guide

▶Please contact our Sales Division for customized products. (Customized on size etc.)
▶Please check the “wavelength characteristic of the focal length data” on “Technical Data” for the focal lengths of each wavelength.

Attention

▶Since the focal length and working distance of the lens is calculated at 1064nm, it will change at other wavelengths due to the refractive index of the material shift.
▶The F number of a lens is calculated by f (effective focal length) / De (effective clear aperture). The value represents “Brightness of the lens”. The lower the value, the brighter the lens is.
▶Be sure to wear laser safety goggles when checking optical path and adjusting optical axis.

Common Specifications
MaterialCrown Glass − (Air Gap) − Flint Glass
Material of frameAluminum (Finishing: Black anodized)
Design wavelength1064nm, 632.8nm
CoatingNarrow band Multilayer Antireflection Coating for the 1064nm and 632.8nm
Acceptance angle±1°
Laser Damage Threshold1J/cm2 
(Laser pulse width 10ns, repetition frequency 20Hz)
Outline Drawing
■NYTL-25/30

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■NYDL-30

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Schematic

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Reference Data
Spec
Compare
Part Number
Add to cart Cart
    JP Yen Stock Qty
NYTL-25-20PY1
NYTL-30-30PY1
NYTL-30-40PY1
NYTL-30-50PY1
NYDL-30-60PY1
NYDL-30-80PY1
NYDL-30-100PY1
NYDL-30-150PY1

φ25mm

20mm

φ32mm

φ20mm

22mm

M29 P0.75

M22 P0.75

6mm

0.5

9mm

φ30mm

30mm

φ36mm

φ27mm

22mm

M34 P0.75

M28 P0.75

6.5mm

0.45

19.1mm

φ30mm

40mm

φ36mm

φ26.5mm

19mm

M34 P0.75

M28 P0.75

4mm

0.33

30.9mm

φ30mm

50mm

φ36mm

φ25.5mm

19mm

M34 P0.75

M28 P0.75

3.5mm

0.25

41.4mm

φ30mm

59.9mm

φ36mm

φ27mm

17mm

M34 P0.75

M34 P0.75

4mm

0.23

41.1mm

φ30mm

79.9mm

φ36mm

φ27mm

15mm

M34 P0.75

M34 P0.75

4mm

0.17

67.6mm

φ30mm

100.1mm

φ36mm

φ27mm

14mm

M34 P0.75

M34 P0.75

4mm

0.14

88.4mm

φ30mm

149.3mm

φ36mm

φ27mm

12mm

M34 P0.75

M34 P0.75

4mm

0.09

140mm

RoHS  

¥95,000

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US
RoHS  

¥95,000

CONTACT
US
RoHS  

¥95,000

CONTACT
US
RoHS  

¥95,000

CONTACT
US
RoHS  

¥80,000

CONTACT
US
RoHS  

¥80,000

CONTACT
US
RoHS  

¥80,000

CONTACT
US
RoHS  

¥80,000

CONTACT
US