Achromatic Cemented Lens

Achromatic Doublet Lens

An Achromatic Doublet Lens, also referred to as an achromat, typically consists of two optical components cemented together, The achromatic design also helps minimize spherical aberrations.  In comparison to a singlet lens, or singlet for short, which only consists of a single piece of glass, the additional design freedom provided by using a doublet design allows for further optimization of performance. Therefore, an achromatic doublet lens will have noticeable advantages over a comparable diameter and focal length singlet.

We can provide customized achromatic doublet lenses to meet your requirements or edge stock lenses for quick turnaround, please inquire.

Types of achromatic lenses

An achromatic lens is available in doublet (two components) or triplet (three components) configurations with round or cylindrical design options. High performance achromatic lenses may also have an aspherical surface for additional spherical aberration correction.

Uncoated achromatic lenses and achromatic lenses with specific wavelength anti-reflection (AR) coatings. Uncoated achromatic lenses are typically designed for infrared (IR) and ultraviolet (UV) and offer superior performance compared to standard UV/IR coated achromatic lenses.

Achromatic Lens Applications

Surgical Magnifiers

Microscopes

Multispectral imaging

Telescopes

LASIK Devices

Machine Vision

Ophthalmology

Threat Detection

Laser Target Indicator

Product parameter

Achromatic Lens Manufacturing

We follow a step-by-step process and conduct rigorous quality checks throughout the process. 

Optical Design: Work with our engineers to validate your print or rely on our expertise to get your design just right. We'll recommend the right optical material and send it off to production.

Crown and flint fabrication: we'll use materials with lower dispersion for convex crowns and higher dispersion materials for concave flints.  

Optical alignment and assembly: After the optical and mechanical axes have been accurately aligned, the lenses are bonded together using specialised refractive index optical adhesives. UV-cured optical adhesive is then used.

Centring: After assembly, some doublet lenses are centred to their final diameter, while others are pre-centred before gluing. After assembly, the bimodal lenses can also be darkened to reduce scattering, which is useful in some optical applications. 

Tests and Measurements: Interferometry, surface roughness, radius of curvature, aberration, etc.