LA1289-C N-BK7 Plano-Convex Lens; Dia:0.5 in; f=30.0 mm ARC 1050-1700nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 12.7 mm
- EFL
- 30 mm
- BFL
- 27.8 mm
- R1
- 15.5 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
LA1289-C N-BK7 Plano-Convex Lens; Dia:0.5 in; f=30.0 mm ARC 1050-1700nm
The LA1289-C is a plano-convex lens offered by Thorlabs, a leading vendor in the optical industry. This lens is designed with a spherical surface and a base shape of a circle, featuring a diameter of 12.7 millimeters and a thickness at the edge of 1.8 millimeters. The center thickness of the lens is 3.2 millimeters, and it has an effective focal length (EFL) of 30 millimeters.
The lens is made of N-BK7, a popular glass type from Schott, which is known for its excellent optical properties. The radius of curvature (R1) of the lens is 15.5 millimeters, and the back focal length (BFL) is 27.8 millimeters. The lens does not have an inner or outer radius.
The LA1289-C is designed to operate at a wavelength of 587.6 nanometers. It comes with anti-reflection coating (ARC) for the wavelength range of 1050-1700 nanometers, ensuring high transmission and minimal reflection. The coating is applied to both the front and back surfaces of the lens.