SLB-20B-70PIR2 20.0 mm Dia. x 70.6 mm FL; Coated; Double-Convex Lens 750-1550nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 20 mm
- EFL
- 70.6 mm
- BFL
- 69.4 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-20B-70PIR2 20.0 mm Dia. x 70.6 mm FL; Coated; Double-Convex Lens 750-1550nm
The SLB-20B-70PIR2 is a high-quality lens offered by OptoSigma, designed for use in the 750-1550nm wavelength range. This lens, with a diameter of 20.0 mm and a focal length of 70.6 mm, is a Spherical Lens of the Sub Type Spherical Lens (Convex-Convex).
The lens is made from the material n-bk7 schott, a popular choice for its excellent optical properties. The base shape of the lens is circular, and it features a double-convex geometry. The edge thickness of the lens is 2.0 mm, while the center thickness is 3.4 mm. The effective focal length (EFL) is 70.6 mm, and the back focal length (BFL) is 69.4 mm.
The lens is coated with opt ir2 on both the front and back surfaces, enhancing its performance in the specified wavelength range. This coating is designed to reduce reflection and increase transmission, making the lens ideal for use in various optical applications.
The SLB-20B-70PIR2 is currently in stock and available for immediate purchase from the OptoSigma website. With its superior optical properties and robust design, this lens is an excellent choice for users seeking a high-performance lens in the 750-1550nm range.