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

25.4mm Dia x 50.8mm FL, 1064nm V-Coat, High Precision Laser Grade Aspheric Lens

High Precision Laser Grade Aspheric Lenses

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Stock #39-560 3-4 days
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£701.25
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£701.25
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Diameter (mm):
25.40 +0.00/-0.05
Effective Focal Length EFL (mm):
50.80 @ 1064nm
Numerical Aperture NA:
0.25
Back Focal Length BFL (mm):
45.03
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Fused Silica (Corning 7980)
Aspheric Design Wavelength (nm):
1064
Asphere Figure Error, RMS @ 632.8nm:
λ/40
Coating:
Laser V-Coat (1064nm)
Coating Specification:
Rabs <0.25% @ 1064nm
Centering (arcmin):
<1
Surface Quality:
10-5
Clear Aperture CA (mm):
21.40
Edge Thickness ET (mm):
4.70
Center Thickness CT (mm):
8.40
f/#:
2
Bevel:
Protective bevel as needed
Shape of Back Surface:
Plano
Type:
Aspheric Lens
Strehl Ratio:
>0.8
Spot Size (μm):
See Technical Information Tab
Conjugate Distance:
Infinite
Note:
Strehl Ratio is >0.8 by design and tested
Damage Threshold, By Design: Damage threshold for optical components varies by substrate material and coating. Click here to learn more about this specification.
15 J/cm2 @ 1064nm, 20ns, 20Hz
Power (diopters):
19.69

Regulatory Compliance

RoHS:
Certificate of Conformance:

Product Family Description

  • Substrate Shape and Coating Optimized for Nd:YAG Laser Wavelengths
  • High Precision Aspheric Surface
  • Strehl Ratio > 0.8

TECHSPEC® High Precision 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 High Precision 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.