SLB-40-100NIR2 40.0 mm Dia. x -100.0 mm FL; Coated; Plano-Concave Lens 750-1550nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 40 mm
- EFL
- -100 mm
- BFL
- -101.3 mm
- R1
- -51.9 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-40-100NIR2 40.0 mm Dia. x -100.0 mm FL; Coated; Plano-Concave Lens 750-1550nm
OptoSigma presents the SLB-40-100NIR2, a Plano-Concave Spherical Lens designed with a 40.0 mm diameter and a focal length of -100.0 mm. This lens is specifically coated for the infrared spectrum, optimized for use within the 750-1550nm wavelength range.
The lens is fabricated from n-BK7 Schott, a widely used optical glass due to its excellent optical properties. The Plano-Concave geometry, characterized by a flat front surface and a curved back surface with a radius of -51.9 mm, results in a Back Focal Length of -101.3 mm. This geometry is ideal for applications requiring beam divergence or collimation.
The lens features a 6 mm edge thickness and a 2 mm center thickness, providing robustness and structural integrity. The Inner and Outer Radius are both 0, indicating a uniform curvature across the lens surface.
The lens is equipped with Opt IR2 coating on both the front and back surfaces, enhancing its performance within the infrared spectrum. This coating reduces surface reflections and increases transmission, making it suitable for various applications, including optical imaging, beam shaping, and laser systems.