SLB-50.8-300NIR2 50.8 mm Dia. x -300.0 mm FL; Coated; Plano-Concave Lens 750-1550nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 50.8 mm
- EFL
- -300 mm
- BFL
- -302 mm
- R1
- -155.7 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-50.8-300NIR2 50.8 mm Dia. x -300.0 mm FL; Coated; Plano-Concave Lens 750-1550nm
The SLB-50.8-300NIR2 is a Plano-Concave Spherical Lens, designed with a 50.8 mm diameter and a focal length of -300.0 mm. This lens is sourced from OptoSigma, a renowned vendor in the optical industry, and is currently in stock. The lens is made of n-bk7 schott material, a popular choice for its high refractive index and low dispersion.
The lens features a thickness of 5.1 mm at the edge and 3 mm at the center, providing a balanced structure for various applications. The front and back surfaces of the lens are coated with opt ir2, a coating specifically designed for the 750-1550nm wavelength range, enhancing its performance in the near-infrared spectrum.
The lens's geometry is circular, with an inner radius of 0 mm and an outer radius of 0 mm, indicating a simple and straightforward design. The back focal length (bfl) is -302 mm, slightly longer than the focal length, which is typical for Plano-Concave lenses.