SLB-20B-40NIR1 20.0 mm Dia. x -39.7 mm FL; Coated; Double-Concave Lens 633-1064nm
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 20 mm
- EFL
- -39.7 mm
- BFL
- -40.3 mm
- R1
- -41.52 mm
- R2
- 41.52 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-20B-40NIR1 20.0 mm Dia. x -39.7 mm FL; Coated; Double-Concave Lens 633-1064nm
The SLB-20B-40NIR1 is a high-quality double-concave lens, boasting a diameter of 20.0 mm and a focal length of -39.7 mm. This lens is sourced from OptoSigma, a renowned vendor known for its precision optical components.
The lens is made from n-bk7 schott, a popular material in the optical industry due to its excellent optical properties. The base shape of the lens is circular, and it features a spherical geometry, with inner and outer radii of 0 mm each. The thickness at the edge of the lens is 4.4 mm, while the center thickness is 2 mm.
The SLB-20B-40NIR1 is coated with opt ir1 on both the front and back surfaces, providing enhanced performance within the wavelength range of 633-1064nm. This coating ensures optimal light transmission and reduces unwanted reflections, making it ideal for various applications.
This lens is currently in stock and available for immediate purchase. For more information, please refer to the vendor's website or contact their sales team directly.
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