SLB-25B-70NIR1 25.0 mm Dia. x -69.7 mm FL; Coated; Double-Concave Lens 633-1064nm
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 25 mm
- EFL
- -69.7 mm
- BFL
- -70.3 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-25B-70NIR1 25.0 mm Dia. x -69.7 mm FL; Coated; Double-Concave Lens 633-1064nm
The SLB-25B-70NIR1 is a high-quality double-concave lens, 25.0 mm in diameter, and featuring a focal length of -69.7 mm. This lens is sourced from OptoSigma, a renowned vendor known for their precision optical components.
The lens is made from n-bk7 schott, a popular material in the optical industry due to its excellent optical properties. The base shape of the lens is circular, and it has a center thickness of 2 mm and an edge thickness of 4.2 mm. The inner and outer radii are both 0, indicating a uniform curvature.
The SLB-25B-70NIR1 is designed for use with a wavelength of 546.1 nm. It comes with a coating of opt ir1 on both the front and back surfaces, enhancing its performance in the 633-1064nm spectral range. This coating is specifically designed to optimize the lens's performance in the near-infrared region, making it ideal for a wide range of applications in this spectrum.