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

25mm Diameter x 40mm EFL, Inked, Aspherized Achromatic Lens

Aspherized Achromatic Lenses

Aspherized Achromatic Lenses
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Stock #49-664-INK 3-5 days
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$168.00
Qty 1-5
$168.00
Qty 6+
$134.50
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Diameter (mm):
25.00 ±0.025
Effective Focal Length EFL (mm):
40.00
Focal Length Tolerance (%):
±1
Back Focal Length BFL (mm):
33.23
Focal Length Specification Wavelength (nm):
587.6
Clear Aperture CA (mm):
23.00
Centering (arcmin):
≤5
Center Thickness CT (mm):
11.58
Center Thickness CT 1 (mm):
9.00
Center Thickness CT 2 (mm):
2.58
Radius R1 (mm):
24.80
Radius R2 (mm):
37.60
Radius R3 (mm):
102.34
Edge Thickness ET (mm):
7.54
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Surface Quality:
60-40, glass surfaces only
f/#:
1.6
Numerical Aperture NA:
0.31
Coating:
VIS 0° (425-675nm)
Coating Specification:
Ravg ≤0.4% @ 425 - 675nm
Note:
VIS 0° Coating on First Surface, Second Surface is Aspheric Polymer
Operating Temperature (°C):
-20°C to 80°C
Type:
Achromatic Lens
Wavelength Range (nm):
425 - 675

Regulatory Compliance

RoHS:
Certificate of Conformance:

Product Family Description

  • Unique Innovative Design, Low Cost, Color-Corrected Asphere
  • Better Color Correction than Standard Achromatic Lenses
  • Similar Spherical Aberration Correction to Machined Aspheres
  • Prescription Information Available

TECHSPEC® Aspherized Achromats bridge the gap between color-corrected achromats and spherical aberration-corrected aspheres. This unique design results in a cost-effective, color-corrected aspheric component. The doublet lenses consist of two cemented elements matched for their color-correction ability and small RMS spot size.   The second surface of the doublet is fused with a molded polymer aspheric surface. These molds create a stable aspheric contour, removing or reducing wavefront errors present in typical achromats while boosting numerical aperture. TECHSPEC Aspherized Achromats’ typical applications include fiber optic focusing or collimation, image relay, inspection, scanning, and high numerical aperture imaging. 

These lenses were honored with the PhAST/Laser Focus World Innovation Award for Optics and Optical Components. 

CT: Center Thickness, ET: Edge Thickness, R: Radius, P: Principal Plane, BFL: Back Focal Length, EFL: Effective Focal Length
CT: Center Thickness, ET: Edge Thickness, R: Radius, P: Principal Plane, BFL: Back Focal Length, EFL: Effective Focal Length