Compare Model Drawings, CAD & Specs Diameter Lens Material Effective Focal Length (EFL) Availability Price
Achromatic Doublet Lens, Visible, 6.35 mm, 12.7 mm EFL, 400-700 nm
$92
In Stock
6.35 mm N-BAF10/N-SF10 12.7 mm
In Stock
Achromatic Doublet Lens, Visible, 6.35 mm, 19.0 mm EFL, 400-700 nm
$92
In Stock
6.35 mm N-BaK4/N-SF10 19.0 mm
In Stock
Achromatic Doublet Lens, Visible, 6.35 mm, 25.4 mm EFL, 400-700 nm
$92
In Stock
6.35 mm N-BK7/N-SF5 25.4 mm
In Stock
Achromatic Doublet Lens, Visible, 12.7 mm, 19.0 mm EFL, 400-700 nm
$90
In Stock
12.7 mm N-BaF10/N-SF14 19.0 mm
In Stock
Achromatic Doublet Lens, Visible, 12.7 mm, 25.4 mm EFL, 400-700 nm
$90
In Stock
12.7 mm N-BAF10/N-SF10 25.4 mm
In Stock
Achromatic Doublet Lens, Visible, 12.7 mm, 31.8 mm EFL, 400-700 nm
$90
In Stock
12.7 mm N-BAF10/N-SF10 31.8 mm
In Stock
Achromatic Doublet Lens, Visible, 12.7 mm, 38.1 mm EFL, 400-700 nm
$100
In Stock
12.7 mm N-BaK4/N-SF10 38.1 mm
In Stock
Achromatic Doublet Lens, Visible, 12.7 mm, 50.8 mm EFL, 400-700 nm
$90
In Stock
12.7 mm N-BK7/N-SF5 50.8 mm
In Stock
Achromatic Doublet Lens, Visible, 12.7 mm, 63.5 mm EFL, 400-700 nm
$90
In Stock
12.7 mm N-BK7/N-SF5 63.5 mm
In Stock
Achromatic Doublet Lens, Visible, 12.7 mm, 76.2 mm EFL, 400-700 nm
$90
In Stock
12.7 mm N-BaK4/N-SF10 76.2 mm
In Stock
Achromatic Doublet Lens, Visible, 12.7 mm, 88.9 mm EFL, 400-700 nm
$90
In Stock
12.7 mm N-BK7/N-SF5 88.9 mm
In Stock
Achromatic Doublet Lens, Visible, 25.4 mm, 50.8 mm EFL, 400-700 nm
$95
In Stock
25.4 mm N-BAF10/N-SF10 50.8 mm
In Stock
Achromatic Doublet Lens, Visible, 25.4 mm, 63.5 mm EFL, 400-700 nm
$95
In Stock
25.4 mm N-BAF10/N-SF10 63.5 mm
In Stock
Achromatic Doublet Lens, Visible, 25.4 mm, 76.2 mm EFL, 400-700 nm
$95
In Stock
25.4 mm N-BaK4/N-SF10 76.2 mm
In Stock
Achromatic Doublet Lens, Visible, 25.4 mm, 88.9 mm EFL, 400-700 nm
$95
In Stock
25.4 mm N-BK7/N-SF5 88.9 mm
In Stock
Achromatic Doublet Lens, Visible, 25.4 mm, 100 mm EFL, 400-700 nm
$95
In Stock
25.4 mm N-BK7/N-SF5 100 mm
In Stock
Achromatic Doublet Lens, Visible, 25.4 mm, 125 mm EFL, 400-700 nm
$95
In Stock
25.4 mm N-BK7/N-SF5 125 mm
In Stock
Achromatic Doublet Lens, Visible, 25.4 mm, 150 mm EFL, 400-700 nm
$95
In Stock
25.4 mm N-BK7/N-SF5 150 mm
In Stock
Achromatic Doublet Lens, Visible, 25.4 mm, 175 mm EFL, 400-700 nm
$95
In Stock
25.4 mm N-BK7/N-SF5 175 mm
In Stock
Achromatic Doublet Lens, Visible, 25.4 mm, 200 mm EFL, 400-700 nm
$95
In Stock
25.4 mm N-BK7/N-SF5 200 mm
In Stock
Achromatic Doublet Lens, Visible, 25.4 mm, 250 mm EFL, 400-700 nm
$95
In Stock
25.4 mm N-BK7/N-SF5 250 mm
In Stock
Achromatic Doublet Lens, Visible, 38.1 mm, 76.2 mm EFL, 400-700 nm
$131
In Stock
38.1 mm N-BAF10/N-SF10 76.2 mm
In Stock
Achromatic Doublet Lens, Visible, 38.1 mm, 100 mm EFL, 400-700 nm
$131
In Stock
38.1 mm N-BaF10/N-SF10 100 mm
In Stock
Achromatic Doublet Lens, Visible, 38.1 mm, 125 mm EFL, 400-700 nm
$131
In Stock
38.1 mm N-BaF10/N-SF10 125 mm
In Stock
Achromatic Doublet Lens, Visible, 38.1 mm, 150 mm EFL, 400-700 nm
$131
In Stock
38.1 mm N-BK7/N-SF5 150 mm
In Stock
Achromatic Triplet Lens, Visible, 38.1 mm, 125 mm EFL, 400-700 nm
$343
In Stock
38.1 mm N-BaSF2/N-SF3/N-BaSF2 125 mm
In Stock
Achromatic Doublet Lens, Visible, 38.1 mm, 200 mm EFL, 400-700 nm
$131
In Stock
38.1 mm N-BK7/N-SF5 200 mm
In Stock
Achromatic Doublet Lens, Visible, 38.1 mm, 250 mm EFL, 400-700 nm
$131
In Stock
38.1 mm N-BK7/N-SF5 250 mm
In Stock
Achromatic Doublet Lens, Visible, 38.1 mm, 300 mm EFL, 400-700 nm
$131
In Stock
38.1 mm N-BK7/N-SF5 300 mm
In Stock
Achromatic Doublet Lens, Visible, 38.1 mm, 400 mm EFL, 400-700 nm
$131
In Stock
38.1 mm N-BK7/N-SF5 400 mm
In Stock
Achromatic Doublet Lens, Visible, 50.8 mm, 150 mm EFL, 400-700 nm
$151
In Stock
50.8 mm N-BK7/N-SF5 150 mm
In Stock
Achromatic Doublet Lens, Visible, 50.8 mm, 200 mm EFL, 400-700 nm
$151
In Stock
50.8 mm N-BK7/N-SF5 200 mm
In Stock
Achromatic Doublet Lens, Visible, 50.8 mm, 250 mm EFL, 400-700 nm
$151
In Stock
50.8 mm N-BK7/N-SF5 250 mm
In Stock
Achromatic Doublet Lens, Visible, 50.8 mm, 300 mm EFL, 400-700 nm
$151
In Stock
50.8 mm N-BK7/N-SF5 300 mm
In Stock
Achromatic Doublet Lens, Visible, 50.8 mm, 400 mm EFL, 400-700 nm
$151
In Stock
50.8 mm N-BK7/N-SF5 400 mm
In Stock
Achromatic Doublet Lens, Visible, 50.8 mm, 500 mm EFL, 400-700 nm
$151
In Stock
50.8 mm N-BK7/N-SF5 500 mm
In Stock
Achromatic Doublet Lens, Visible, 50.8 mm, 750 mm EFL, 400-700 nm
$151
In Stock
50.8 mm N-BK7/N-SF5 750 mm
In Stock
Achromatic Doublet Lens, Visible, 76.2 mm, 250 mm EFL, 400-700 nm
$373
In Stock
76.2 mm N-BK7/N-F2 250 mm
In Stock
Achromatic Doublet Lens, Visible, 76.2 mm, 500 mm EFL, 400-700 nm
$373
In Stock
76.2 mm N-BK7/N-SF5 500 mm
In Stock
Achromatic Doublet Lens, Visible, 76.2 mm, 750 mm EFL, 400-700 nm
$373
In Stock
76.2 mm N-BK7/N-SF5 750 mm
In Stock

Specifications

  • Lens Type
    Achromatic Doublet
  • Lens Shape
    Plano-Convex
  • Antireflection Coating
    400-700 nm
  • Coating Code
    MgF2
  • Damage Threshold
    750 W/cm2 CW, 0.75 J/cm2 with 10 nsec pulses, typical, cement limitation
  • Transmission
    T>95% visible, T>92% at 1064 nm
  • Surface Quality
    40-20 scratch-dig
  • Surface Flatness
    λ/4
  • Surface Accuracy, Power
    1.5 λ
  • Orientation
    Steepest convex surface should face the infinite conjugate
  • Design Wavelengths
    486.1, 546.1, 656.3 nm
  • Centration
    ≤3 arc min
  • Diameter Tolerance
    +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).

MgF2 Visible Antireflection Coating

Our single layer Magnesium Fluoride visible AR coating is the most common choice that offers extremely broad wavelength range at a reasonable price. It is standard on achromats and optional on our N-BK7 plano-convex spherical lenses and cylindrical lenses. Comparing to the uncoated surface, the MgF2 provides a significant improvement by reducing the reflectance to less than 1.5%. It works extremely well over a wide range of wavelengths (400 nm to 700 nm) at angles of incidence less than 15 degrees.

Superior Performance in Monochromatic Applications

Achromats are superior to singlet lenses for monochromatic applications at any visible wavelength. Negative achromatic lenses are used primarily to extend focal lengths, which is often combined with positive achromatic mirror systems and imaging lenses. Generally a diffraction limited spot may be achieved when using a monochromatic source such as laser.

IR Performance

Visible achromats are still usable in the IR, although they are not optimized. An achromat will not be diffraction limited at 1064 nm but performance will still be superior to a singlet lens. At 1064 nm, the focal length of a typical achromat increases by approximately 0.75%. Choosing these optics for image relay or optical processing applications will be more desirable than single element lenses.

Design Wavelengths

Newport's visible achromatic doublet lenses are design around the following visible wavelengths 486.1, 546.1, and 656.3 nm.