Achromatic Double Lens

  • Achromatic Double Lens
  • Achromatic Double Lens
  • Achromatic Double Lens

An achromatic lens or achromat is a lens that is designed to limit the effects of chromatic andspherical aberration. Achromatic lenses are corrected to bring two wavelengths (typically red and blue) into focus in the same plane.

A-Star photonics  is the professional Achromatic Double Lens supplier in China and can customized various optical lens products with different shape, dimension and precision. Including spherical lens, Plano-convex Lenses, achromatic doublet lenses, cylindrical lenses and coating.  Hope we can provide the best service for you.

A-Star’s Achromatic Double Lens

Achromatic Lenses are a very common type of viewer lens. They consist of two or more lens elements, which have been corrected for chromatic aberration with respect to two selected wavelengths, The elements must be fixed in relation to one another by either mounting or cement.

Achromatic Double Lenses are designed to specifically function within the infrared, visible, or ultraviolet wavelength ranges, and they are not symmetric devices. They must be installed with the correct front-to-back orientation (the thicker element usually faces the eyes). If installed incorrectly with the lens orientation installed backwards, the result will be extensive distortion and aberration.

Negative Acromatec Lenses

Negative Acromatec Lenses

Positive Achromatic Lenses

Positive Achromatic Lenses

Achromatic Double Lens

Part No.F(mm)F(mm)R1(mm)R2=R3(mm)R4(mm)t c1(mm)t c2(mm)FB(mm)Lens ALens B
ALN0201-25.012.7-15.613.0944.163.02.67-27.5N-BK7F2
ALN0202-40.012.7-24.4517.9766.63.02.34-42.5N-BK7F2
ALN0301-50.025.4-31.1924.8985.313.04.22-53.3N-BK7F2
Part No.F(mm)F(mm)R1(mm)R2=R3(mm)R4(mm)t c1(mm)t c2(mm)FB(mm)Lens ALens B
ALP010115.06.08.831-6.546-19.772.71113.066N-BK7N-SF5
ALP010220.06.012.356-8.511-24.382.6118.288N-BK7N-SF5
ALP010325.06.015.704-10.666-29.992.3123.455N-BK7N-SF5
ALP010430.06.018.88-12.942-36.481.9128.695N-BK7N-SF5
ALP010525.08.015.596-10.814-30.482.9123.125N-BK7N-SF5
ALP010630.08.018.88-12.882-36.222.7128.277N-BK7N-SF5
ALP010720.010.012.3-9.02-25.233.6117.625N-BK7N-SF5
ALP020125.012.015.346-11.35-31.924.21.322.286N-BK7N-SF5
ALP020225.012.715.596-11.402-31.054.31.322.251N-BK7N-SF5
ALP020330.012.718.535-13.49-37.8441.327.36N-BK7N-SF5
ALP020440.012.725.23-17.539-48.753.41.337.778N-BK7N-SF5
ALP020550.012.731.26-21.93-62.373.11.347.992N-BK7N-SF5
ALP020660.012.737.33-26.42-75.862.81.358.127N-BK7N-SF5
ALP020775.012.746.77-32.96-94.622.61.373.227N-BK7N-SF5
ALP020865.020.040.09-29.58-83.596.3260.868N-BK7N-SF5
ALP030160.025.437.33-27.16-75.867255.565N-BK7N-SF5
ALP0302120.025.473.28-54.33-159.964.22117.103N-BK7N-SF5

 

An achromatic lens or achromatic

An achromatic lens or achromatic is a lens that is designed to limit the effects of chromatic and spherical aberration. Achromatic lenses are corrected to bring two wavelengths (typically red and blue) into focus in the same plane.

In the most common type (shown), the positive power of the crown lens element is not quite equalled by the negative power of the flint lens element. Together they form a weak positive lens that will bring two different wavelengths of light to a common focus. Negative doublets, in which the negative-power element predominates, are also made.

China Achromatic lens

Product nameAchromatic lens
MaterialBK7 glass and ZF2 or ZF4
EFL+/- 2%
Diameter+0, -0.18
Center thickness tolerance+/- 0.20
Surface quality40/20 scratch/dig
Generation2 arc minimum
Achromatic Double Lens

Achromatic Double Lens

Achromatic Double Lens Specification:

  • An achromatic lens or achromatic is an optical lens that is designed to limit the effects of  chromatic and spherical aberration.
  • Achromatic  lenses are corrected to bring two wavelengths (typically red and blue) into focus in the same plane.
  • An achromatic lens is usually composed of  two individual lenses made from glasses with different amounts of      dispersion.
  • One element  is a concave lens made of flint glass, the other element is made of crown  glass.