LC1259-B N-BK7 Plano-Concave Lens; Dia:25 mm; f=-50.0 mm ARC 650-1050nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 25 mm
- EFL
- -50 mm
- BFL
- -52.3 mm
- R1
- -25.7 mm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5150891983370924
- λ
- 632.8 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
LC1259-B N-BK7 Plano-Concave Lens; Dia:25 mm; f=-50.0 mm ARC 650-1050nm
The LC1259-B is a plano-concave lens with a diameter of 25 mm and a focal length of -50.0 mm, making it ideal for applications that require light to be focused or dispersed over a wide area. This lens is made from N-BK7, a type of glass commonly used in optical systems due to its excellent optical properties. The lens is sourced from Thorlabs, a reputable vendor known for their high-quality optical components.
The lens features an antireflection coating (ARC) designed for the wavelength range of 650-1050nm. This coating reduces unwanted reflections, improving the efficiency and clarity of the lens. The lens has a thickness of 6.7mm at the edge and 3.5mm at the center, providing a robust structure while maintaining a low profile.
The LC1259-B is a spherical lens, meaning it has a curved surface that allows light to be focused or dispersed. The radius of curvature for the first surface is -25.7mm, and the back focal length is -52.3mm. The lens does not have an inner or outer radius, indicating a uniform curvature across the entire surface.