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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

12.5mm Diameter x 20mm EFL Aspherized Achromatic Lens

Aspherized Achromatic Lenses

Aspherized Achromatic Lenses
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Stock #49-659 In Stock
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€124,00
Qty 1-5
€124,00
Qty 6+
€99,50
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Specifications

General

Note:
VIS 0° Coating on First Surface, Second Surface is Aspheric Polymer
Type:
Achromatic Lens

Physical & Mechanical Properties

Diameter (mm):
12.50 +0.00/-0.05
Clear Aperture CA (mm):
11.00
Centering (arcmin):
≤5
Center Thickness CT (mm):
6.58
Center Thickness CT 1 (mm):
5.00
Center Thickness CT 2 (mm):
1.58
Edge Thickness ET (mm):
5.01

Optical Properties

Effective Focal Length EFL (mm):
20.00
Back Focal Length BFL (mm):
16.07
Focal Length Specification Wavelength (nm):
587.6
Radius R1 (mm):
13.30
Radius R2 (mm):
20.00
Radius R3 (mm):
204.48
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
Wavelength Range (nm):
425 - 675

Environmental & Durability Factors

Operating Temperature (°C):
-20°C to 80°C

Regulatory Compliance

RoHS 2015:
Reach 219:
Certificate of Conformance:

Product Details

  • 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. 

Technical Information

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

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