SLB-50.8B-60NIR2 50.8 mm Dia. x -59.5 mm FL; Coated; Double-Concave Lens 750-1550nm
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 50.8 mm
- EFL
- -59.5 mm
- BFL
- -60.5 mm
- R1
- -62.28 mm
- R2
- 62.28 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-50.8B-60NIR2 50.8 mm Dia. x -59.5 mm FL; Coated; Double-Concave Lens 750-1550nm
The SLB-50.8B-60NIR2 is a high-quality double-concave lens offered by OptoSigma, a renowned vendor in the optical industry. This lens, designed for use in the 750-1550nm wavelength range, is a spherical lens with a base shape of a circle, making it suitable for a wide range of optical applications.
The lens has a diameter of 50.8mm and a center thickness of 3mm, with an edge thickness of 13.8mm. The effective focal length (EFL) is -59.5mm, and the back focal length (BFL) is -60.5mm. The first radius of curvature (R1) is -62.28mm, and the second radius of curvature (R2) is 62.28mm. The lens is made of n-BK7 Schott, a popular material known for its excellent optical properties.
The SLB-50.8B-60NIR2 comes with a coating of opt IR2 on both the front and back surfaces, enhancing its performance in the infrared spectrum. This coating is specifically designed for use in the 750-1550nm range, ensuring optimal performance in this wavelength band.