LA1172-A N-BK7 Plano-Convex Lens; Dia:1 in; f=400.0 mm ARC 350-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- 400 mm
- BFL
- 397.1 mm
- R1
- 206 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
LA1172-A N-BK7 Plano-Convex Lens; Dia:1 in; f=400.0 mm ARC 350-700nm
The LA1172-A is a plano-convex lens, a type of spherical lens, manufactured by Thorlabs. This lens boasts a diameter of 1 inch (25.4 mm) and a focal length of 400.0 mm, making it suitable for a wide range of optical applications. The lens is made from N-BK7, a popular glass type known for its excellent optical properties, particularly its high refractive index and low dispersion.
The lens's geometry is characterized by its edge thickness of 2 mm and center thickness of 2.4 mm. The lens's effective focal length (EFL) is 400 mm, and its back focal length (BFL) is 397.1 mm. The lens's inner and outer radii are both 0, indicating a plano-convex shape.
The LA1172-A is coated with a broadband anti-reflection coating, denoted as "tho a bbar," on both the front and back surfaces. This coating is designed to operate within the wavelength range of 350-700 nm, providing high transmission and low reflection, which is crucial for many optical systems.
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