SLB-50.8B-120PIR2 50.8 mm Dia. x 121.3 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
- 121.3 mm
- BFL
- 118.6 mm
- R1
- 124.56 mm
- R2
- -124.56 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-120PIR2 50.8 mm Dia. x 121.3 mm FL; Coated; Double-Convex Lens 750-1550nm
The SLB-50.8B-120PIR2 is a high-quality lens offered by OptoSigma, designed for use in the 750-1550nm wavelength range. This lens, with a base shape of a circle, is a spherical lens of the convex-convex type, making it suitable for a wide range of optical applications.
The lens has a diameter of 50.8mm and a thickness at the edge of 2.8mm, ensuring durability and stability. The thickness at the center is 8mm, providing a good balance between weight and optical performance. The effective focal length (EFL) of this lens is 121.3mm, which is a crucial factor in determining the lens's magnification power.
The lens's first radius of curvature (R1) is 124.56mm, and the second radius of curvature (R2) is -124.56mm, indicating its double-convex nature. The back focal length (BFL) is 118.6mm, which is the distance between the lens's rear surface and its focal point. The lens's inner and outer radii are both 0mm, suggesting a symmetrical design.
The lens is made of n-bk7 schott, a popular material for optical lenses due to its excellent optical properties. The lens is coated with opt ir2 on both the front and back, which enhances its performance in the infrared spectrum.
