λ/2 Achromats

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 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

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

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