SLB-50.8B-250PIR1 50.8 mm Dia. x 251.0 mm FL; Coated; Double-Convex Lens 633-1064nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 50.8 mm
- EFL
- 251 mm
- BFL
- 249.1 mm
- R1
- 259.5 mm
- R2
- -259.5 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-250PIR1 50.8 mm Dia. x 251.0 mm FL; Coated; Double-Convex Lens 633-1064nm
This is a high-quality spherical lens, specifically a double-convex lens, offered by OptoSigma. It is designed with a base shape of a circle and has a diameter of 50.8 mm. The lens has a thickness of 2.9 mm at the edge and 5.4 mm at the center, making it suitable for various optical applications.
The effective focal length (EFL) of this lens is 251 mm, and the back focal length (BFL) is 249.1 mm. The first radius of curvature (R1) is 259.5 mm, and the second radius of curvature (R2) is -259.5 mm. The lens is made of n-BK7 Schott, a popular optical glass due to its excellent optical properties.
The lens is coated with Opt IR1 on both the front and back surfaces, providing superior performance in the wavelength range of 633-1064 nm. This coating enhances the lens's durability and resistance to environmental factors, making it an ideal choice for applications that require high-performance optics.
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