LB4821-UV 50.8 mm Dia. UVFS Double-Convex Lens; EFL=100mm 245-400nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 50.8 mm
- EFL
- 100 mm
- R1
- 90.4 mm
- R2
- -90.4 mm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.458448271212196
- λ
- 588 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
LB4821-UV 50.8 mm Dia. UVFS Double-Convex Lens; EFL=100mm 245-400nm
The LB4821-UV is a high-quality double-convex lens, boasting a diameter of 50.8 mm and a focal length of 100 mm. This lens is designed for use in the ultraviolet spectrum, specifically between 245-400 nm, making it an ideal choice for applications requiring precise UV light manipulation.
This lens is sourced from Thorlabs, a trusted name in the optical components industry, and is crafted from UVFS, a material with a refractive index of 1.49 at 588 nm. The lens features a front and back coating of THo UVFS UV Bbar, enhancing its durability and performance in UV applications.
The lens geometry includes an edge thickness of 3 mm and a center thickness of 10.3 mm, providing robust structural integrity. The radii of curvature for the front and back surfaces are 90.4 mm and -90.4 mm, respectively, contributing to the lens's double-convex shape. The lens has no inner or outer radius, further emphasizing its robust design.