LA1765-C N-BK7 Plano-Convex Lens; Dia:30.0 mm; f=75.0 mm ARC 1050-1700nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 30 mm
- EFL
- 75 mm
- BFL
- 71.1 mm
- R1
- 38.6 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
LA1765-C N-BK7 Plano-Convex Lens; Dia:30.0 mm; f=75.0 mm ARC 1050-1700nm
The LA1765-C is a high-quality plano-convex lens from Thorlabs, designed for use in a wide range of optical applications. This lens is fabricated from N-BK7 Schott glass, a popular material known for its excellent optical properties and versatility.
The lens has a diameter of 30.0 mm and a focal length of 75.0 mm, making it suitable for applications that require a long focal length. The plano-convex geometry, where one side is flat and the other is curved, is a common design for lenses used in beam shaping, focusing, and collimation.
The LA1765-C features a front and back coating of tho c bbar, which provides anti-reflection properties across the 1050-1700nm wavelength range. This coating helps to minimize losses due to reflection, thereby improving the overall efficiency of the optical system.
The lens has a central thickness of 5.5 mm and an edge thickness of 2.5 mm, providing a robust and durable design. The inner and outer radii are both 0 mm, indicating a sharp curvature on the convex side.
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