Compare Model Drawings, CAD & Specs Diameter Effective Focal Length (EFL) Surface Quality Availability Price
Achromatic Lens, NIR, 12.0 mm Diameter, 18.0 mm EFL, 750-1550 nm
$112
In Stock
12.0 mm 18.0 mm 40-20 scratch-dig
In Stock
Achromatic Lens, NIR, 12.0 mm Diameter, 20.0 mm EFL, 750-1550 nm
$112
In Stock
12.0 mm 20.0 mm 40-20 scratch-dig
In Stock
Achromatic Lens, NIR, 12.0 mm Diameter, 25.0 mm EFL, 750-1550 nm
$112
In Stock
12.0 mm 25.0 mm 40-20 scratch-dig
In Stock
Achromatic Lens, NIR, 12.0 mm Diameter, 30.0 mm EFL, 750-1550 nm
$112
In Stock
12.0 mm 30.0 mm 40-20 scratch-dig
In Stock
Achromatic Lens, NIR, 12.0 mm Diameter, 35.0 mm EFL, 750-1550 nm
$112
In Stock
12.0 mm 35.0 mm 40-20 scratch-dig
In Stock
Achromatic Lens, NIR, 12.0 mm Diameter, 40.0 mm EFL, 750-1550 nm
$112
In Stock
12.0 mm 40.0 mm 40-20 scratch-dig
In Stock
Achromatic Lens, NIR, 12.0 mm Diameter, 50.0 mm EFL, 750-1550 nm
$112
In Stock
12.0 mm 50.0 mm 40-20 scratch-dig
In Stock
Achromatic Lens, NIR, 12.0 mm Diameter, 75.0 mm EFL, 750-1550 nm
$112
In Stock
12.0 mm 75.0 mm 40-20 scratch-dig
In Stock
Achromatic Lens, NIR, 25.0 mm Diameter, 100.0 mm EFL, 750-1550 nm
$130
In Stock
25.0 mm 100 mm 60-40 scratch-dig
In Stock
Achromatic Lens, NIR, 25.0 mm Diameter, 200.0 mm EFL, 750-1550 nm
$130
In Stock
25.0 mm 200 mm 60-40 scratch-dig
In Stock
Achromatic Lens, NIR, 25.0 mm Diameter, 35.0 mm EFL, 750-1550 nm
$130
In Stock
25.0 mm 35.0 mm 60-40 scratch-dig
In Stock
Achromatic Lens, NIR, 25.0 mm Diameter, 40.0 mm EFL, 750-1550 nm
$130
In Stock
25.0 mm 40.0 mm 60-40 scratch-dig
In Stock
Achromatic Lens, NIR, 25.0 mm Diameter, 45.0 mm EFL, 750-1550 nm
$130
In Stock
25.0 mm 45.0 mm 60-40 scratch-dig
In Stock
Achromatic Lens, NIR, 25.0 mm Diameter, 50.0 mm EFL, 750-1550 nm
$130
In Stock
25.0 mm 50.0 mm 60-40 scratch-dig
In Stock
Achromatic Lens, NIR, 25.0 mm Diameter, 60.0 mm EFL, 750-1550 nm
$130
In Stock
25.0 mm 60.0 mm 60-40 scratch-dig
In Stock
Achromatic Lens, NIR, 25.0 mm Diameter, 75.0 mm EFL, 750-1550 nm
$130
In Stock
25.0 mm 75.0 mm 60-40 scratch-dig
In Stock
Achromatic Lens, NIR, 50.0 mm Diameter, 100.0 mm EFL, 750-1550 nm
$232
In Stock
50.0 mm 100 mm 60-40 scratch-dig
In Stock
Achromatic Lens, NIR, 50.0 mm Diameter, 150.0 mm EFL, 750-1550 nm
$232
In Stock
50.0 mm 150 mm 60-40 scratch-dig
In Stock
Achromatic Lens, NIR, 50.0 mm Diameter, 200.0 mm EFL, 750-1550 nm
$232
In Stock
50.0 mm 200 mm 60-40 scratch-dig
In Stock
Achromatic Lens, NIR, 25.0 mm Diameter, 150.0 mm EFL, 750-1550 nm
$130
In Stock
25.0 mm 150 mm 60-40 scratch-dig
In Stock

Specifications

  • Lens Type
    Achromatic Doublet
  • Lens Shape
    Plano-Convex
  • Antireflection Coating
    750-1550 nm
  • Coating Type
    NIR Multilayer
  • Coating Code
    AR.16E
  • Damage Threshold
    7.5 J/cm2, 10 ns pulses, 10 Hz at 1064 nm
  • Lens Material
    N-LaK22/N-SF6
  • Centration
    3-5 arc-min
  • Chamfers Angle/Tolerance
    45°
  • Diameter Tolerance
    +0.0/-0.1 mm
  • Focal Length Tolerance
    ±2.0%

Features

Achromatic Lenses

An Achromat, or Achromatic lens, is usually made up of multiple optical elements, which can be air-spaced or cemented together. These typically alternate a positive lens of low index material, such as crown glass, and a negative lens of high index material, such as flint glass. The elements are selected and optimized so that dispersion in the positive element is corrected by the negative element, resulting in minimized chromatic aberration at two well-separated wavelengths. Achromats offer a nearly constant focal length across the visible spectrum, providing superior off-axis performance. Doublet lenses offer users many more design options than singlet lenses, which allows for superior performance in visual imaging and laser beam manipulation applications. Our lenses are computer designed, minimizing aberrations and providing a smaller focused spot size. They are offered with multi-layer or single-layer AR coatings. Standard diameters and focal lengths may be interchanged with our singlet lenses. Further, achromats are available in a wide variety of configurations, including positive, negative, triplet, and aspherized. These lenses are produced as doublets or triplets (three elements).

NIR-IR Antireflection Coating

Our NIR to IR antireflection coating has the following specifications: Rabs<1.5% @ 750-800 nm, Rabs<1.0% @ 800-1550 nm, and Ravg<0.7% @ 750-1550 nm. Common applications for these near IR achromatic lenses include Imaging, Microscopy, and various spectroscopic methods in the near IR spectrum.

Design Wavelengths

Our NIR Achromatic Lenses are computer optimized at infinite conjugate ratios for applications in the near-IR spectrum, producing the smallest spot size possible for polychromatic light sources between 750 to 1100 nm. Spherical and chromatic aberrations are minimized to provide superior performance. For most applications, diffraction-limited spot size can be achieved when using with monochromatic light sources of wavelength up to 2 µm.