SLB-50.8-70NM 50.8 mm Dia. x -70.0 mm FL; Coated; Plano-Concave Lens 400-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 50.8 mm
- EFL
- -70 mm
- BFL
- -72 mm
- R1
- -36.33 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-50.8-70NM 50.8 mm Dia. x -70.0 mm FL; Coated; Plano-Concave Lens 400-700nm
The SLB-50.8-70NM is a Plano-Concave Spherical Lens, boasting a 50.8 mm diameter and a focal length of -70.0 mm. This lens is sourced from OptoSigma, a renowned vendor in the optical industry. The lens is made from n-bk7 schott, a high-quality material known for its excellent optical properties.
The lens's geometry is meticulously designed, with a thickness of 13.4 mm at the edge and 3 mm at the center. The front and back surfaces of the lens are coated with an opt m coating, which enhances its performance in the 400-700nm wavelength range. This coating ensures high transmission and low reflection, making the lens suitable for various applications.
The lens's base shape is circular, and its shape is spherical, which is a common choice for many optical systems due to its ease of manufacturing and high optical quality. The lens's inner and outer radii are 0, indicating a flat surface on one side and a concave surface on the other.
The lens's effective focal length (EFL) is -70 mm, and its back focal length (BFL) is -72 mm. These parameters are crucial in determining the lens's performance in a specific optical system.