LB1862-C N-BK7 Bi-Convex Lens; Dia:2 in; f=400.0 mm ARC 1050-1700nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 50.8 mm
- EFL
- 175 mm
- BFL
- 398.5 mm
- R1
- 411.3 mm
- R2
- -411.3 mm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5150823520020043
- λ
- 633 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
LB1862-C N-BK7 Bi-Convex Lens; Dia:2 in; f=400.0 mm ARC 1050-1700nm
The LB1862-C is a high-quality bi-convex lens from Thorlabs, designed with a base shape of a circle and a spherical geometry. This lens boasts a diameter of 2 inches (50.8 mm) and a thickness of 3 mm at the edge, transitioning to 7.2 mm at the center. The effective focal length (EFL) of this lens is 175 mm, and the back focal length (BFL) is 398.5 mm.
The LB1862-C is crafted from N-BK7 glass, a popular material in the optical industry due to its excellent optical properties. This lens is designed to work optimally with a wavelength of 633 nm. The lens features anti-reflection (AR) coatings on both the front and back surfaces, specifically designed for the wavelength range of 1050-1700 nm. These coatings help to minimize surface reflections, thereby increasing the amount of light transmitted through the lens.
The LB1862-C is currently in stock and available for immediate purchase from the Thorlabs website. With its superior optical performance and robust design, this lens is an excellent choice for a wide range of optical applications.