SLB-25.4B-200PM 25.4 mm Dia. x 200.5 mm FL; Coated; Double-Convex Lens 400-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- 200.5 mm
- BFL
- 199.6 mm
- R1
- 207.6 mm
- R2
- -207.6 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-25.4B-200PM 25.4 mm Dia. x 200.5 mm FL; Coated; Double-Convex Lens 400-700nm
The SLB-25.4B-200PM is a high-quality spherical lens from OptoSigma, designed for use in the 400-700nm wavelength range. This lens, with a base shape of a circle, is a double-convex lens, featuring two convex surfaces. The lens has a diameter of 25.4mm and a thickness of 2mm at the edge, while the center thickness is 2.8mm.
The effective focal length (EFL) of this lens is 200.5mm, making it suitable for a variety of optical applications. The first radius of curvature (R1) is 207.6mm, and the second radius of curvature (R2) is -207.6mm, indicating the lens's double-convex nature. The back focal length (BFL) is 199.6mm. The lens is made from n-bk7 schott material, a popular choice for its high refractive index and low dispersion.
The lens features a coating on both the front and back surfaces, specifically an opt m coating. This coating enhances the lens's performance by reducing reflection and increasing transmission in the specified wavelength range. The lens's shape is spherical, which is a common choice for its ease of manufacturing and versatility in optical systems.