LA1256-C N-BK7 Plano-Convex Lens; Dia:2 in; f=300.0 mm ARC 1050-1700nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 50.8 mm
- EFL
- 300 mm
- BFL
- 295.6 mm
- R1
- 154.5 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
LA1256-C N-BK7 Plano-Convex Lens; Dia:2 in; f=300.0 mm ARC 1050-1700nm
The LA1256-C is a Plano-Convex lens, a type of spherical lens, manufactured by Thorlabs. This lens boasts a diameter of 2 inches, or 50.8 millimeters, and a focal length of 300 millimeters. The lens is made from N-BK7, a popular glass type in the optical industry, specifically from Schott, a renowned glass manufacturer.
The lens's geometry is characterized by its edge thickness of 3 millimeters and center thickness of 5.1 millimeters. The effective focal length (EFL) is 300 millimeters, and the radius of curvature (ROC) of the curved surface is 154.5 millimeters. The back focal length (BFL) is 295.6 millimeters, and both the inner and outer radii are 0 millimeters.
The LA1256-C is coated with a broadband anti-reflection coating (ARC) that operates within the wavelength range of 1050 to 1700 nanometers. This coating is applied to both the front and back surfaces of the lens, reducing reflection and increasing transmission.
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