45-886 20mm Dia. x 40mm FL; VIS-NIR Coated; Double-Convex Lens VIS-NIR 400-1000nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 20 mm
- EFL
- 40 mm
- BFL
- 38.44 mm
- R1
- 40.67 mm
- R2
- -40.67 mm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5167984379050088
- λ
- 587.6 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
45-886 20mm Dia. x 40mm FL; VIS-NIR Coated; Double-Convex Lens VIS-NIR 400-1000nm
The 45-886 is a high-quality double-convex lens, boasting a 20mm diameter and a 40mm focal length. This lens is sourced from the reputable vendor, Edmund Optics, and is designed for use within the visible to near-infrared spectrum, covering wavelengths from 400 to 1000nm.
The lens is constructed from Schott's n-BK7 glass, a material renowned for its excellent optical properties, including a high refractive index and low dispersion. This makes the lens ideal for a wide range of applications, particularly where high image quality and low chromatic aberration are critical.
The lens features a front and back coating of edm visnir0sp2002000, a multi-layer anti-reflection coating optimized for the visible to near-infrared range. This coating enhances the lens's performance by reducing surface reflections, thereby increasing transmission and improving overall image contrast.
The geometry of the lens is meticulously designed, with an edge thickness of 2.8mm and a center thickness of 5.3mm. The lens's front and back radii of curvature are 40.67mm and -40.67mm, respectively, contributing to a back focal length of 38.44mm. The lens's shape is spherical, ensuring excellent focus and minimal distortion.
