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TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More

25.4mm Dia x 50.8mm FL, 532nm V-Coat, λ/40 Laser Grade Aspheric Lens

TECHSPEC® λ/40 Laser Grade Aspheric Lenses

TECHSPEC® λ/40 Laser Grade Aspheric Lenses

Stock #39-558
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Qty 1+
$750.00
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Diameter (mm):
25.40 +0.00/-0.05
Effective Focal Length EFL (mm):
50.80 @ 532nm
Numerical Aperture NA:
0.25
Back Focal Length BFL (mm):
45.36
Center Thickness CT (mm):
7.90
Coating:
Laser V-Coat (532nm)
Coating Specification:
Rabs <0.25% @ 532nm
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Clear Aperture CA (mm):
21.40
Asphere Figure Error (μm RMS):
0.016
Surface Quality:
10-5
Edge Thickness ET (mm):
4.40
Centering (arcmin):
<1
Bevel:
Protective bevel as needed
f/#:
2
Design Wavelength DWL (nm):
532
Shape of Back Surface:
Plano
Damage Threshold, Pulsed:
10 J/cm2 @ 532nm, 20ns, 20Hz
Strehl Ratio:
>0.8
Spot Size (μm):
See Technical Information Tab
Conjugate Distance:
Infinite
Note:
Strehl Ratio is >0.8 by design and tested
Asphere Figure Error (λ, RMS @ 632.8nm):
0.025

Regulatory Compliance

RoHS:

Product Family Description

  • 532 and 1064nm Designs with Tested Strehl Ratio >0.8

TECHSPEC® λ/40 Laser Grade Aspheric Lenses are polished through precision magnetorheological finishing (MRF), providing them with an ultra-smooth aspheric surface with an aspheric surface tolerance of λ/40 RMS. The aberration free aspheric surfaces produced through this super-polishing process result in these aspheric lenses having diffraction-limited performance at their design wavelengths. A high-performance Laser Line V-Coat minimizes reflection when these aspheric lenses are used at their Nd:YAG wavelengths. TECHSPEC λ/40 Laser Grade Aspheric Lenses feature substrates designed and shaped at their laser wavelength to optimize the entire lens design, not just the anti-reflection coating, for the laser wavelength. Standard imperial sizes of these laser grade aspheres with f/2 designs, made from fused silica, are available.

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