SLB-40B-100NM 40.0 mm Dia. x -99.7 mm FL; Coated; Double-Concave Lens 400-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 40 mm
- EFL
- -99.7 mm
- BFL
- -100.3 mm
- R1
- -103.8 mm
- R2
- 103.8 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-40B-100NM 40.0 mm Dia. x -99.7 mm FL; Coated; Double-Concave Lens 400-700nm
The SLB-40B-100NM is a high-quality double-concave lens offered by OptoSigma, a renowned vendor in the optical industry. This lens, designed for use within the wavelength range of 400-700nm, is made from the popular material n-BK7 Schott, known for its excellent optical properties.
The lens boasts a diameter of 40.0 mm and a back focal length of -99.7 mm, making it suitable for a variety of applications. The center thickness is 2 mm, while the edge thickness is 5.9 mm, providing a robust structure that can withstand typical handling and usage.
The SLB-40B-100NM features a double-concave geometry, with radii of curvature of -103.8 mm for the first surface and 103.8 mm for the second. This particular shape is ideal for use in systems where beam divergence or convergence is required.
The lens is coated with Opto-M, a broadband anti-reflection coating that enhances its performance by reducing surface reflections. This coating is applied to both the front and back surfaces of the lens, ensuring optimal light transmission and minimal loss.