Where to Buy Lenses

Knight Optical offers a wide range of high quality lenses for a variety of applications, from aspheric lenses to correct spherical aberrations, to thin Fresnel lenses and large condenser lenses. We can supply from stock or bespoke, in a range of materials to suit and where necessary we can edge existing stock lenses for a fast turnaround, all QA assured.

Standard plano-convex, plano-concave, biconvex, biconcave, cylindrical lenses and lens kits made of BK7, UVFS or CaF₂ optical materials. Lenses of custom design can be produced in our CNC lens polishing facility and later coated for your application.

See us at Photonics. World of Lasers and Optics 2019 in Moscow, March 4–7 (booth 73A23) and Laser World of Photonics China 2019 in Shanghai, March 20–22 (booth W3.3610)!

DPM Photonics offers precision lenses for collimating the output of high power fiber devices. We also sell focusing objective lenses.

The Model 02-014-1 is an air spaced, computer designed multi-element lens that is diffaction-limited when used with fibers having core diameters as large as 1200 microns. Operational wavelength is 1064 nm. The 02-014 reimages the emitting surface of the fiber with a 0.67× demagnification. Focused spot sizes are significantly smaller than those achievable with single-element lenses used in a similar collimating/focusing configuration. All optical elements are fabricated from high laser-damage resistant glasses and are anti-reflection coated to reduce reflectance per surface to 0.13%. The working distance between the lens and the target is sufficiently large to allow use of a gas nozzle to enhance the cutting or welding process and to prevent debris from depositing on the lens surface.