SLB-25B-90PIR2 25.0 mm Dia. x 90.6 mm FL; Coated; Double-Convex Lens 750-1550nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 25 mm
- EFL
- 90.6 mm
- BFL
- 89.4 mm
- R1
- 93.42 mm
- R2
- -93.42 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-25B-90PIR2 25.0 mm Dia. x 90.6 mm FL; Coated; Double-Convex Lens 750-1550nm
The SLB-25B-90PIR2 is a 25.0 mm diameter, double-convex lens with a focal length of 90.6 mm, specifically designed for use within the wavelength range of 750-1550nm. This lens is sourced from OptoSigma, a renowned vendor known for their high-quality optical components.
The lens is constructed from n-bk7 schott, a popular material in the optical industry due to its excellent optical properties. The base shape of the lens is circular, with a thickness of 2 mm at the edge and 3.7 mm at the center. The effective focal length (EFL) is 90.6 mm, while the back focal length (BFL) is 89.4 mm. The radii of curvature for the first and second surfaces are 93.42 mm and -93.42 mm respectively.
The SLB-25B-90PIR2 features a coating of opt ir2 on both the front and back surfaces. This coating enhances the lens' performance within the specified wavelength range, providing improved transmission and reduced reflection. The lens is designed for use in spherical geometry, with no inner or outer radius specified.