SLB-40-50NIR1 40.0 mm Dia. x -50.0 mm FL; Coated; Plano-Concave Lens 633-1064nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 40 mm
- EFL
- -50 mm
- BFL
- -51.3 mm
- R1
- -25.95 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-40-50NIR1 40.0 mm Dia. x -50.0 mm FL; Coated; Plano-Concave Lens 633-1064nm
The SLB-40-50NIR1 is a Plano-Concave Spherical Lens, sourced from the reputable vendor OptoSigma. This lens boasts a diameter of 40.0 mm and a focal length of -50.0 mm, making it suitable for a wide range of optical applications.
The lens is crafted from n-bk7 schott, a high-quality optical glass known for its excellent transmittance and homogeneity. The base shape of the lens is circular, and it features an inner radius of 0 mm and an outer radius of 0 mm. The edge thickness of the lens is 11.4 mm, while the center thickness is a mere 2 mm, contributing to its lightweight and compact design.
The lens's geometry is further defined by its radius of curvature (r1) of -25.95 mm and back focal length (bfl) of -51.3 mm. The effective focal length (efl) is -50 mm, indicating that the lens will diverge light rays.
The SLB-40-50NIR1 is coated with opt ir1 on both the front and back surfaces, enhancing its performance in the 633-1064nm wavelength range. This coating ensures high transmission and low reflection, making the lens ideal for use in laser applications.
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