SLB-50.8B-300PIR2 50.8 mm Dia. x 300.8 mm FL; Coated; Double-Convex Lens 750-1550nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 50.8 mm
- EFL
- 300.8 mm
- BFL
- 299.1 mm
- R1
- 311.4 mm
- R2
- -311.4 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-300PIR2 50.8 mm Dia. x 300.8 mm FL; Coated; Double-Convex Lens 750-1550nm
This is a high-quality lens from OptoSigma, designed for use in the 750-1550nm wavelength range. The lens, identified as SLB-50.8B-300PIR2, has a base shape of a circle and features a double-convex geometry, making it suitable for a wide range of optical applications.
The lens has a diameter of 50.8 mm and a thickness at the edge of 2.9 mm. The center thickness is 5 mm, providing a robust structure for efficient light transmission. The effective focal length (EFL) of this lens is 300.8 mm, and the back focal length (BFL) is 299.1 mm, offering a long focal length for various optical systems.
The lens is made of n-BK7 Schott, a popular optical glass due to its excellent optical properties and high transmittance in the visible and near-infrared regions. The lens's front and back surfaces are coated with Opt IR2, a broadband anti-reflection coating designed for the 750-1550nm wavelength range, further enhancing its performance and suitability for infrared applications.
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