SLB-25B-170PIR1 25.0 mm Dia. x 170.5 mm FL; Coated; Double-Convex Lens 633-1064nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 25 mm
- EFL
- 170.5 mm
- BFL
- 169.5 mm
- R1
- 176.46 mm
- R2
- -176.46 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-25B-170PIR1 25.0 mm Dia. x 170.5 mm FL; Coated; Double-Convex Lens 633-1064nm
The SLB-25B-170PIR1 is a high-quality lens offered by OptoSigma, designed with a 25.0 mm diameter and a focal length of 170.5 mm. This lens is made of n-bk7 schott material, a popular choice for its excellent optical properties and versatility.
The lens features a double-convex geometry, meaning it has two spherical surfaces that curve outwards. This design is often used to increase the convergence of light rays, making it ideal for various applications that require a tight focus. The lens has an inner radius of 0 and an outer radius of 0, indicating a symmetrical design.
The SLB-25B-170PIR1 comes with a coating of opt ir1 on both the front and back surfaces. This coating is specifically designed to enhance the lens' performance in the infrared spectrum, between 633 and 1064 nm. This makes the lens particularly suitable for applications that involve infrared light, such as thermal imaging or spectroscopy.
In terms of dimensions, the lens has a thickness of 2 mm at the edge and 2.9 mm at the center. This slight curvature is typical of double-convex lenses and contributes to their focusing power. The back focal length (BFL) is 169.5 mm, which is the distance between the lens's rear surface and its focal point.