LA1301-B N-BK7 Plano-Convex Lens; Dia:2 in; f=250.0 mm ARC 650-1050nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 50.8 mm
- EFL
- 250 mm
- BFL
- 245.5 mm
- R1
- 128.8 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
LA1301-B N-BK7 Plano-Convex Lens; Dia:2 in; f=250.0 mm ARC 650-1050nm
The LA1301-B is a Plano-Convex lens, a type of spherical lens, sourced from Thorlabs, a renowned vendor in the optical industry. This lens is characterized by its circular base shape and is designed for use in a wide range of applications due to its versatile specifications.
The lens has a diameter of 2 inches (50.8 mm) and a thickness that varies from 3 mm at the edge to 5.5 mm at the center. It boasts an effective focal length (EFL) of 250 mm, making it suitable for applications that require a longer focal length. The lens's front radius of curvature (R1) is 128.8 mm, and the back focal length (BFL) is 245.5 mm, providing a clear understanding of its curvature and focusing capabilities.
The LA1301-B is made from N-BK7, a popular optical glass from Schott, known for its excellent optical properties and high damage threshold. This material is particularly suitable for applications in the visible and near-infrared spectrum, with a central wavelength of 587.6 nm.
The lens features broadband anti-reflection (BBAR) coatings on both the front and back surfaces, specifically designed for the 650-1050 nm range. These coatings reduce surface reflections, thereby increasing transmission and improving overall system performance.
