λ/2 Achromats

Achromatic Cemented Double Lens
from BRD Optical Co., Ltd.

Achromatic Lenses are used to minimize or eliminate chromatic aberration. The achromatic design also helps minimize spherical aberrations. Achromatic Lenses are ideal for a range of applications, including fluorescence microscopy, image relay, inspection, or spectroscopy. An Achromatic Lens, which... [See More]

  • Surface Flatness: λ/2; λ/4; λ/5; λ/8; λ/10
  • Lens Application: Visible
  • Achromat Type: Doublet
  • Focal Length: 50 to 2000
Achromatic Cemented Triple Lens / Acromats
from BRD Optical Co., Ltd.

Achromatic Lenses are used to minimize or eliminate chromatic aberration. The achromatic design also helps minimize spherical aberrations. Achromatic Lenses are ideal for a range of applications, including fluorescence microscopy, image relay, inspection, or spectroscopy. An Achromatic Lens, which... [See More]

  • Surface Flatness: λ/2; λ/4; λ/5; λ/8; λ/10
  • Focal Length: 50 to 2000
  • Achromat Type: Triplet
  • Center Thickness: 2 to 50
Negative Achromats -- L-AON003
from Ross Optical Industries

Negative Achromats consist of two optical components, a crown and a flint glass lens, cemented together. The crown is usually a bi-concave lens. As is true to all Achromats, they are corrected for color and on-axis spherical aberration. They are used predominantly to extend focal lengths in... [See More]

  • Surface Flatness: λ/2
  • Lens Application: Infrared (optional feature); Visible; Ultraviolet (optional feature)
  • Achromat Type: Doublet
  • Focal Length: -20
Standard Achromats -- L-AOC000
from Ross Optical Industries

These lenses consist of two optical elements, usually of crown and flint glass types, cemented together to form an achromatic doublet. Most often, the crown lens is a biconvex positive lens. Due to the difference in refractive indices, chromatic aberration with respect to two selected wavelengths... [See More]

  • Surface Flatness: λ/2
  • Lens Application: Infrared (optional feature); Visible; Ultraviolet (optional feature)
  • Achromat Type: Doublet
  • Focal Length: 10
Steinheil Triplets -- L-AST001
from Ross Optical Industries

The Steinheil triplets are made of a low index crown element cemented in between two identical meniscus flint elements. Specially designed for 1:1 conjugation, they perform well for conjugate ratios up to 5. These lenses make good relay optics for both on- and off-axis application and are often used... [See More]

  • Surface Flatness: λ/2
  • Lens Application: Infrared (optional feature); Visible; Ultraviolet (optional feature)
  • Achromat Type: Triplet
  • Focal Length: 7.5