SLB-20B-40PIR1 20.0 mm Dia. x 40.7 mm FL; Coated; Double-Convex Lens 633-1064nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 20 mm
- EFL
- 40.7 mm
- BFL
- 39.3 mm
- R1
- 41.52 mm
- R2
- -41.52 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-40PIR1 20.0 mm Dia. x 40.7 mm FL; Coated; Double-Convex Lens 633-1064nm
The SLB-20B-40PIR1 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 40.7 mm, is a Spherical Lens of the Sub Type Spherical Lens (Convex-Convex).
The lens is circular in base shape and features a geometry that includes a thickness edge of 2 mm and a thickness center of 4.4 mm. The effective focal length (EFL) is 40.7 mm, with a front radius (R1) of 41.52 mm and a back radius (R2) of -41.52 mm. The back focal length (BFL) is 39.3 mm, with an inner radius of 0 mm and an outer radius of 0 mm.
The lens is made from n-bk7 schott, a material known for its excellent optical properties. It is designed to work with a wavelength of 546.1 nm. The lens features a coating on both the front and back, specifically an opt ir1 coating, which enhances its performance in the 633-1064nm range.