SLB-40-70NIR1 40.0 mm Dia. x -70.0 mm FL; Coated; Plano-Concave Lens 633-1064nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 40 mm
- EFL
- -70 mm
- BFL
- -71.3 mm
- R1
- -36.33 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-40-70NIR1 40.0 mm Dia. x -70.0 mm FL; Coated; Plano-Concave Lens 633-1064nm
OptoSigma presents the SLB-40-70NIR1, a Plano-Concave Spherical Lens with a 40.0 mm diameter and a focal length of -70.0 mm. This lens is designed for use within the wavelength range of 633-1064nm, making it suitable for various applications within the near-infrared spectrum.
The lens is made from the highly versatile material n-BK7 Schott, a borosilicate crown glass known for its excellent optical properties, including low dispersion and high transmission across a wide range of wavelengths. This material makes the lens particularly suitable for use in laser applications and interferometry.
The SLB-40-70NIR1 features a front and back coating of opt IR1, providing enhanced performance and durability. This coating is specifically designed to improve the lens's performance within the infrared region, ensuring optimal transmission and reducing unwanted reflections.
The lens's geometry includes an edge thickness of 8mm and a center thickness of 2mm, providing a robust structure while maintaining a sleek profile. The lens's inner and outer radii are both 0mm, indicating a uniform curvature throughout.