SLB-20B-25PIR2 20.0 mm Dia. x 26.0 mm FL; Coated; Double-Convex Lens 750-1550nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 20 mm
- EFL
- 26 mm
- BFL
- 24 mm
- R1
- 25.95 mm
- R2
- -25.95 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-20B-25PIR2 20.0 mm Dia. x 26.0 mm FL; Coated; Double-Convex Lens 750-1550nm
The SLB-20B-25PIR2 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 Circular and a Sub Type of Spherical Lens (Convex-Convex).
The lens has a diameter of 20.0 mm and a thickness edge of 2.0 mm, with a thickness center of 6.0 mm. The Effective Focal Length (EFL) is 26.0 mm, and the Radius of Curvature (RoC) for the first surface is 25.95 mm, while for the second surface it is -25.95 mm. The Back Focal Length (BFL) is 24.0 mm.
The lens is made from n-bk7 schott material, a popular choice for its high refractive index and low dispersion. The lens is coated with opt ir2 on both the front and back surfaces, enhancing its 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 at https://www.optosigma.com/us_en/n-bk7-biconvex-lenses-ar-750-1550nm-SLB-B-P-IR2.html.