LC1120-B N-BK7 Plano-Concave Lens; Dia:1 in; f=-100.0 mm ARC 650-1050nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- -100 mm
- BFL
- -102.6 mm
- R1
- -51.5 mm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5167984379050088
- λ
- 587.6 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
LC1120-B N-BK7 Plano-Concave Lens; Dia:1 in; f=-100.0 mm ARC 650-1050nm
The LC1120-B is a plano-concave lens made from N-BK7 Schott glass, a popular material for optical elements due to its excellent optical properties. This lens, sourced from Thorlabs, features a diameter of 1 inch (25.4 mm) and a focal length of -100.0 mm, making it suitable for a wide range of applications.
The lens's geometry includes a thickness of 5.6 mm at the edge and 4 mm at the center, with an effective focal length (EFL) of -100 mm. The radius of curvature (R1) is -51.5 mm, and the back focal length (BFL) is -102.6 mm. The lens's inner and outer radii are both 0, indicating a flat surface on one side and a curved surface on the other.
The LC1120-B is coated with Thorlabs' BBAR coating (Broadband Anti-Reflection Coating) on both the front and back surfaces, specifically designed for the 650-1050 nm wavelength range. This coating reduces reflection and increases transmission, enhancing the lens's performance in its intended application.
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