LA1145-A N-BK7 Plano-Convex Lens; Dia:2 in; f=75.0 mm ARC 350-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 50.8 mm
- EFL
- 75 mm
- BFL
- 66.5 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
LA1145-A N-BK7 Plano-Convex Lens; Dia:2 in; f=75.0 mm ARC 350-700nm
The LA1145-A 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 optical glass known for its excellent optical properties and high damage threshold. The lens has a diameter of 2 inches (50.8 mm) and a focal length of 75.0 mm, making it a versatile choice for many setups.
The lens features an antireflection coating, designed to reduce surface reflections and increase transmission in the 350-700 nm range. This coating is applied to both the front and back surfaces of the lens, ensuring optimal performance. The lens has a clear aperture of 50.8 mm, with a thickness of 3 mm at the edge and 12.5 mm at the center.
The curvature of the lens is spherical, with a radius of curvature (R1) of 38.6 mm. The back focal length (BFL) is 66.5 mm, and the effective focal length (EFL) is 75.0 mm. The lens is unmounted, allowing for easy integration into existing systems.