SLB-20B-60PIR2 20.0 mm Dia. x 60.6 mm FL; Coated; Double-Convex Lens 750-1550nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 20 mm
- EFL
- 60.6 mm
- BFL
- 59.4 mm
- R1
- 62.28 mm
- R2
- -62.28 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-60PIR2 20.0 mm Dia. x 60.6 mm FL; Coated; Double-Convex Lens 750-1550nm
The SLB-20B-60PIR2 is a high-quality lens offered by 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 20.0 mm and a thickness at the edge of 2.0 mm. The thickness at the center is 3.6 mm, and it boasts an effective focal length (EFL) of 60.6 mm. The first radius of curvature (R1) is 62.28 mm, while the second radius of curvature (R2) is -62.28 mm. The back focal length (BFL) is 59.4 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, which is ideal for infrared applications.
Please note that the inner and outer radii are both 0, indicating that this lens does not have any special features such as a thread or a flange. The shape of the lens is spherical, which is the most common type of lens due to its ease of manufacture and versatility.
This lens is currently in stock and can be purchased directly from the OptoSigma website using the provided weblink.
