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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

25mm Dia 0.23 NA, UV-VIS Coated, UV Fused Silica Aspheric Lens

TECHSPEC UV Fused Silica Aspheric Lenses

TECHSPEC UV Fused Silica Aspheric Lenses
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Stock #21-917 3-4 days
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Other Coating Options
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£277.95 £463.25
Qty 1-5
£277.95 £463.25
Qty 6+
£236.64 £394.40
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Diameter (mm):
25.00 +0/-0.025
Effective Focal Length EFL (mm):
50.00 @ 355nm
Numerical Aperture NA:
0.23
Back Focal Length BFL (mm):
45.10 @ 355nm
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Fused Silica (Corning 7980)
Aspheric Design Wavelength (nm):
355
Asphere Figure Error, RMS @ 632.8nm:
0.4λ
Coating:
UV-VIS (250-700nm)
Coating Specification:
Ravg <2.5% @ 250 - 700nm
Centering (arcmin):
<1
Surface Quality:
40-20
Clear Aperture CA (mm):
22.5
Edge Thickness ET (mm):
3.82
Center Thickness CT (mm):
7.20 ±0.1
f/#:
2
Bevel:
Protective bevel as needed
Shape of Back Surface:
Plano
Type:
Aspheric Lens
Wavelength Range (nm):
250 - 700
Conjugate Distance:
Infinite
Power (diopters):
20.00

Regulatory Compliance

RoHS 2015:
Compliant
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Certificate of Conformance:
View
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Reach 235:
Compliant
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Product Family Description

  • Low Coefficient of Thermal Expansion
  • Precision and High Precision Options
  • High Numerical Apertures to Maximize Throughput

TECHSPEC® UV Fused Silica Aspheric Lenses offer the benefits of an aspheric element combined with the manufacturing precision of state-of-the-art grinding and polishing equipment. These fused silica optics can be easily designed and integrated into complex optical systems with the available prescription data. Featuring low f/#’s, which allow for a larger aperture and thus more light gathering and focusing performance, these fused silica lenses are computer-optimized to eliminate spherical and minimize higher order aberrations. TECHSPEC® UV Fused Silica Aspheric Lenses offer a low coefficient of thermal expansion, making them ideal for applications in metrology, beam-focusing or collimating, and OEM integration.  These lenses are available in a variety of coating options and are offered in sizes ranging from 10-50mm.  

UV FS Transmission Curve
UV FS Transmission Curve