High Precision Achromatic Lenses
High Precision Achromatic Lenses are designed to minimize chromatic aberration by bringing two wavelengths (typically visible spectrum) into the same focus, ensuring sharp and high-contrast imaging.
These lenses are commonly made from carefully matched optical glass pairs (e.g., crown and flint) and feature high surface accuracy and tight centration tolerances.
Typical specifications include:
- Diameter: custom or standard sizes (e.g., 3–50 mm)
- Focal length tolerance: ±1% or better
- Surface accuracy: up to λ/4 @ 632.8 nm or better
- Coating: broadband AR coating (e.g., 400–700 nm or customized)
- Centration: < 3 arcmin
Applications:
Widely used in laser systems, imaging optics, medical devices, optical instruments, and precision measurement systems where reduced chromatic aberration and high image quality are critical.
