UV Fused Silica (JGS1)
Plano-Convex Lenses

Plano-convex (PCX) lenses have a positive focal length and can be used to focus collimated light, to collimate a point source, or to reduce the divergence angle of a diverging source. When image quality is not critical, plano-convex lenses can also be used as a substitute for achromatic doublets. To minimize the introduction of spherical aberration, a collimated light source should be incident on the curved surface of the lens when being focused and a point light source should be incident on the planar surface when being collimated.
When deciding between a plano-convex lens and a bi-convex lens, both of which cause collimated incident light to converge, it is usually preferable to choose a plano-convex lens if the desired absolute magnification is either less than 0.2 or greater than 5. Between these two values, bi-convex lenses are generally preferred.

Each UVFS lens presented here can be offered with a 532/1064 nm, 405 nm, 532 nm, or 633, or 1064 nm, or 1550 nm nm laser line V-coating. Our V-coats have a minimum reflectance of less than 0.25% per surface at the coating wavelength and are designed for angles of incidence (AOI) between 0° and 20°. Compared to our broadband AR coatings, V-coatings achieve lower reflectance over a narrower bandwidth when used at the specified AOI. For more information on other AR coatings such as broadband of 245 – 400 nm, 350 – 700 nm, or 650 – 1050 nm, please contact us for details.

Paralight Optics offers UV or IR-Grade Fused Silica (JGS1 or JGS3) Plano-Convex (PCX) lenses available in different sizes, either uncoated lenses or with a high-performance multi-layer antireflection (AR) coating optimized for the ranges of 245-400nm, 350-700nm, 650-1050nm, 1050-1700nm, 532/1064nm, 405nm, 532nm, 633nm deposited on both surfaces, this coating greatly reduces the high surface reflectivity of the substrate less than 0.5% across the entire AR coating range for angles of incidence (AOI) between 0° and 30°. For optics intended to be used at large incident angles, consider using a custom coating optimized at a 45° angle of incidence; this custom coating is effective from 25° to 52°. Check the following Graphs for your references.