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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

15mm Dia x 22.5mm FL, VIS EXT+, High Precision Aspheric Lens

TECHSPEC® High Precision Aspheric Lenses

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Stock #22-891 5 In Stock Other Coating Options
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Quantity Selector - Use the plus and minus buttons to adjust the quantity. +
£559.20
Volume Pricing
Qty 1-5 £559.20 each
Qty 6-10 £503.20 each
Qty 11+ £469.60 each
Need More? Request Quote
Prices shown are exclusive of VAT/local taxes
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Specifications

General

Type:
Aspheric Lens
Note:
3D Surface Profile not included with coated lenses

Physical & Mechanical Properties

Diameter (mm):
15.00 +0.00/-0.025
Centering (arcmin):
<1
Clear Aperture CA (mm):
13.50
Edge Thickness ET (mm):
6.25
Center Thickness CT (mm):
8.79
Bevel:
Protective as needed
Shape of Back Surface:
Plano

Optical Properties

Effective Focal Length EFL (mm):
22.50 @ 587.6nm
Numerical Aperture NA:
0.33
Back Focal Length BFL (mm):
16.71
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
N-BK7
Aspheric Design Wavelength (nm):
587.6
Asphere Figure Error, RMS @ 632.8nm:
λ/40
Coating:
VIS-EXT+ (350-700nm)
Coating Specification:
Ravg <0.5% @ 350 - 700nm @ ±30° AOI
Rabs <1.5% @ 350 - 700nm @ ±30° AOI
Surface Quality:
40-20
f/#:
1.5
Wavelength Range (nm):
350 - 700
Conjugate Distance:
Infinite
Power (diopters):
44.44

Regulatory Compliance

RoHS 2015:
Compliant
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Certificate of Conformance:
View
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Reach 250:
Compliant
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Custom

Edmund Optics offers comprehensive custom manufacturing services for optical and imaging components tailored to your specific application requirements. Whether in the prototyping phase or preparing for full-scale production, we provide flexible solutions to meet your needs. Our experienced engineers are here to assist—from concept to completion.

Our capabilities include:

  • Custom dimensions, materials, coatings, and more
  • High-precision surface quality and flatness
  • Tight tolerances and complex geometries
  • Scalable production—from prototype to volume

Learn more about our custom manufacturing capabilities or submit an inquiry here.

Product Details

  • High Precision Aspheric Surface
  • 3D Surface Profiles Included with Uncoated Lenses
  • Uncoated and <0.25% Reflectance V-Coat Available

TECHSPEC® High Precision Aspheric Lenses guarantee better than λ/40 wave aspheric figure error. Achieved via precision magneto-rheological finishing (MRF), these aspheres offer high numerical apertures with diameters ranging from 15 to 50mm and are ideal for a variety of imaging and low light level applications. Each TECHSPEC High Precision Aspheric Lens is individually measured. 3D surface profiles are included with uncoated lenses. For diffraction-limited aspheres designed at specific Nd:YAG laser wavelengths, see our TECHSPEC High Precision Laser Grade Aspheric Lenses.

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