SLB-50.8-250NIR1 50.8 mm Dia. x -250.0 mm FL; Coated; Plano-Concave Lens 633-1064nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 50.8 mm
- EFL
- -250 mm
- BFL
- -252 mm
- R1
- -129.75 mm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.518720636186463
- λ
- 546.1 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
SLB-50.8-250NIR1 50.8 mm Dia. x -250.0 mm FL; Coated; Plano-Concave Lens 633-1064nm
The SLB-50.8-250NIR1 is a Plano-Concave Spherical Lens, sourced from OptoSigma, with a diameter of 50.8 mm and a focal length of -250.0 mm. This lens is designed for use within the wavelength range of 633-1064nm, making it suitable for a variety of applications within this spectrum.
The lens is fabricated from n-bk7 schott, a popular material in optical applications due to its excellent optical properties. The lens features a plano surface on one side and a concave surface on the other, with a center thickness of 3mm and an edge thickness of 5.5mm. The inner and outer radii are both 0mm, indicating a uniform curvature across the concave surface.
The lens is coated with Opt IR1 on both the front and back surfaces, enhancing its performance within the specified wavelength range. This coating helps to reduce reflection and increase transmission, improving the overall efficiency of the lens.