SLB-20B-20PIR1 20.0 mm Dia. x 21.2 mm FL; Coated; Double-Convex Lens 633-1064nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 20 mm
- EFL
- 21.2 mm
- BFL
- 18.8 mm
- R1
- 20.76 mm
- R2
- -20.76 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-20PIR1 20.0 mm Dia. x 21.2 mm FL; Coated; Double-Convex Lens 633-1064nm
The SLB-20B-20PIR1 is a high-quality lens from OptoSigma, designed for use in a wide range of optical applications. This lens, with a diameter of 20.0 mm and a focal length of 21.2 mm, is a spherical lens of the convex-convex type, featuring a base shape that is circular.
The lens is made from n-bk7 schott, a material well-known for its excellent optical properties. The geometry of the lens includes a thickness of 2.0 mm at the edge and 7.1 mm at the center, with an effective focal length (EFL) of 21.2 mm. The radii of curvature are 20.76 mm for the first surface and -20.76 mm for the second, resulting in a back focal length (BFL) of 18.8 mm.
The SLB-20B-20PIR1 comes with a coating of opt ir1 on both the front and back surfaces, providing enhanced performance within the wavelength range of 633-1064nm. This coating ensures optimal light transmission and reduces unwanted reflections, making it an ideal choice for various applications.