What is an Achromatic Lens?

The achromatic lens is different because of the unique way that it corrects chromatic aberrations. A chromatic aberration is when a lens cannot focus different wavelengths of light, which equates to different colors, into a single convergence point. This particular lens adjust for this wavelength differentiation, allowing the colors to focus into the same plane or focal point. Typically, the lens corrects for red and blue. When color fringing, another term for chromatic aberration, occurs a lens with a flexible design is needed to configure and correct the wide array of dispersion and refractive indices. The lenses also aides in reducing spherical aberration by adjusting for aspheric properties. The flexibility of the lens’s unique design allows for the exact corrections needed for its application.

Why are achromatic lenses used for?

These lenses are known for their high resolution. They are often used in life sciences. They are most commonly used in telescopes. The lenses are optimal for use in surface inspecting as well as spectroscopy. The level of adjustment for chromatic aberration varies for use, therefore the lenses are available in a variety of configurations. They can be purchased as achromatic singlets, doublets, and triplets.

What types of achromatic lenses are available for purchase?

These specialized lenses are available in a variety of standard or specialized capabilities. The adjustable characteristics are available on a scale, or range of options. The specifications are available for dimension tolerance, center thickness tolerance, radius tolerance, surface quality, irregularity, and centration. Achromatic lenses are sold with coatings that enhance the optimization of the lenses. These lenses are often used for special scientific research; therefore, achromatic lenses are often sold with custom specifications that account for exact corrections. This ensures that the product is perfect for the project at hand.