LA1608-B N-BK7 Plano-Convex Lens; Dia:1 in; f=75.0 mm ARC 650-1050nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- 75 mm
- BFL
- 72 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
LA1608-B N-BK7 Plano-Convex Lens; Dia:1 in; f=75.0 mm ARC 650-1050nm
The LA1608-B is a high-quality plano-convex lens from Thorlabs, designed for use in a wide range of optical applications. This lens is made from N-BK7, a popular glass type known for its excellent optical properties, and is specifically designed for use in the 650-1050nm wavelength range.
The lens has a diameter of 1 inch (25.4mm) and a focal length of 75mm, making it a versatile choice for many setups. The plano-convex design features a flat front surface and a curved back surface with a radius of curvature of 38.6mm. This design, combined with the lens's thickness of 2mm at the edge and 4.1mm at the center, results in a back focal length of 72mm.
The LA1608-B is coated with Thorlabs' BBAR coating on both the front and back surfaces, which reduces reflection and increases transmission in the 650-1050nm range. This coating, along with the lens's high-quality N-BK7 glass, ensures excellent optical performance.
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