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Achromatic Doublet Lenses


A single lens used to form an image will always show some chromatic aberration, that is variation of focal length with wavelength. Achromatic doublet lenses correct for this as they are constructed from two different glass types and designed to remove first order chromatic aberration. Generally spherical aberration is reduced at the same time. Achromatic doublets are probably the most economical way of achieving quality white light illumination and imaging.

Our custom achromatic doublet lenses are designed and optimised for performance and are available as positive and negative focal length types. Custom achromatic doublets are available to your specific requirements in a range of major manufacturer’s glass type combinations and AR coated to meet your specific wavelength requirements.

Knight Optical also stock a full range of doublet lenses from small 3mm dia up to 110mm dia to meet a range of demanding applications which can be edge down at short notice to meet your specific custom requirement.

Typical applications where achromatic doublet lenses are used are imaging, analysers, fibre-optic lighting, laser range finders, telescope objectives, endoscopes and borescopes and also to focus laser beams. We can offer custom achromatic doublet lenses to meet these applications or your specific application requirement. For educational and experimental applications, you may require a more cost effective commercial grade doublet lens to meet your budget; well we can also help here.

Contact our multilingual technical sales team and discover how Knight Optical’s high quality custom achromatic doublet lenses can improve your product and supply chain experience.

Our 2018/2019 Catalogue

Inside Knight Optical’s catalogue you’ll find details of the industries we serve as well as the many other services we can offer. It also showcases hundreds of our most popular products, supported by useful technical information, to help you choose the right part for your application.
Click below to view our digital catalogue now.

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