SLB-25B-70PIR2 25.0 mm Dia. x 70.7 mm FL; Coated; Double-Convex Lens 750-1550nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 25 mm
- EFL
- 70.7 mm
- BFL
- 69.3 mm
- R1
- 72.66 mm
- R2
- -72.66 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-70PIR2 25.0 mm Dia. x 70.7 mm FL; Coated; Double-Convex Lens 750-1550nm
The SLB-25B-70PIR2 is a high-quality lens from OptoSigma, designed for use in the 750-1550nm wavelength range. This lens is a Spherical Lens (Convex-Convex) type, featuring a base shape of a circle.
The lens has a diameter of 25.0 mm and a thickness at the edge of 2.0 mm. The thickness at the center is 4.2 mm, and the Effective Focal Length (EFL) is 70.7 mm. The first radius of curvature (R1) is 72.66 mm, and the second radius of curvature (R2) is -72.66 mm, indicating a double-convex lens. The Back Focal Length (BFL) is 69.3 mm.
The lens is made of n-bk7 schott material, a popular choice for its excellent optical properties. The front and back of the lens are coated with opt ir2, a coating that enhances the lens' performance in the infrared spectrum.
This lens is currently in stock and available for immediate purchase. For more information, please refer to the vendor's website using the provided weblink.