Reasonable spherical biconvex lens φ10mm uncoated focal length f:10.8mm S-SLB-10B-10P 1 piece

This product has a surface quality one rank lower than that of the spherical convex lens (SLB-P). It can be used in optical systems that do not require high surface quality, such as for lighting or observation purposes. Specifications other than surface quality are almost the same as those of spherical convex lenses (SLB-P). We recommend this lens unless you are using it for high-precision experiments using lasers. This is a biconvex lens that can provide large refraction and a short focal length. In addition to uncoated products, we also offer lenses with three types of anti-reflective coating: for the visible range, near infrared range, and infrared range. *Spherical plano-convex lenses and spherical biconvex lenses have chromatic aberration, and the focal length changes depending on the wavelength. * Plano-convex lenses have a direction in which light enters. * Always make sure that parallel light is incident from the convex side. *If you do it the other way around, the spherical aberration will increase, the focused spot will become larger, and the image may appear blurred. *Uncoated lenses have a transmittance of about 90% due to the loss caused by reflections on the front and back surfaces of the lens. [Common specifications for <Reasonable spherical convex lenses>] Material: BK7 Design wavelength: 546.1nm Refractive index: ne=1.519 Eccentricity: <3' Coating: Uncoated Effective diameter: 85% of outer diameter (83% of outer diameter φD＜φ10mm) Scratch-Dig: 60-40 [Individual specifications] Anti-reflection coating Wavelength range: Uncoated Outer diameter φD: φ10mm Focal length f: 10.8mm Edge thickness te: 2mm Center thickness tc: 4.6mm Back Focus fb: 9.2mm Radius of curvature r: 10.38mm RoHS Compliant