SLB-50.8B-50NIR1 50.8 mm Dia. x -49.5 mm FL; Coated; Double-Concave Lens 633-1064nm
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 50.8 mm
- EFL
- -49.5 mm
- BFL
- -50.5 mm
- R1
- -51.9 mm
- R2
- 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-50.8B-50NIR1 50.8 mm Dia. x -49.5 mm FL; Coated; Double-Concave Lens 633-1064nm
The SLB-50.8B-50NIR1 is a high-quality double-concave lens, boasting a diameter of 50.8 mm and a focal length of -49.5 mm. This lens is sourced from the reputable vendor, OptoSigma, and is crafted from the renowned material, n-bk7 schott.
The lens features a base shape of a circle, with an edge thickness of 16.3 mm and a center thickness of 3 mm. The inner and outer radii are both 0, indicating a uniform curvature. The back focal length (BFL) is -50.5 mm, and the effective focal length (EFL) is -49.5 mm.
The SLB-50.8B-50NIR1 is coated with opt ir1 on both the front and back, providing excellent transmission and protection in the wavelength range of 633-1064nm. This coating enhances the lens's performance, making it suitable for a wide range of applications.
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