LB4140-UV 50.8 mm Dia. UVFS Double-Convex Lens; EFL=150mm 245-400nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 50.8 mm
- EFL
- 150 mm
- R1
- 136.8 mm
- R2
- -136.8 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
LB4140-UV 50.8 mm Dia. UVFS Double-Convex Lens; EFL=150mm 245-400nm
The LB4140-UV is a high-quality double-convex lens, boasting a diameter of 50.8 mm and a focal length of 150 mm. This lens is specifically designed for use in the ultraviolet (UV) spectrum, with a wavelength range of 245-400 nm. Manufactured by Thorlabs, a leading vendor in the optical industry, this lens is made from UVFS material, ensuring optimal performance in UV applications.
The lens features a UV-optimized broadband anti-reflection (BBAR) coating on both the front and back surfaces, which significantly reduces surface reflections and increases transmission. The geometry of the lens includes a thickness of 3 mm at the edge and 7.8 mm at the center, providing excellent optical performance.
The LB4140-UV is a spherical lens, with radii of curvature of 136.8 mm on both the front and back surfaces. This design ensures a wide field of view and low distortion. The lens is also available with an optional protective window for added durability.
