LA1289-B N-BK7 Plano-Convex Lens; Dia:0.5 in; f=30.0 mm ARC 650-1050nm
- 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-B N-BK7 Plano-Convex Lens; Dia:0.5 in; f=30.0 mm ARC 650-1050nm
The LA1289-B is a Plano-Convex lens, a type of spherical lens, sourced from Thorlabs, a renowned optical components manufacturer. This lens boasts a diameter of 0.5 inches (12.7 mm) and a focal length of 30.0 mm, making it suitable for a wide range of optical applications.
The lens is made from N-BK7, a popular glass type in the optical industry, known for its excellent optical properties. The geometry of the lens includes a thickness of 1.8 mm at the edge and 3.2 mm at the center, providing a solid structure for efficient light transmission.
The LA1289-B is coated with a broadband anti-reflection coating (ARC), specifically designed for the 650-1050nm wavelength range. This coating reduces unwanted reflections, enhancing the overall transmission of light through the lens.
The lens is available in a circular base shape, which is a common form factor for many optical applications. The front and back surfaces of the lens are coated with the same broadband anti-reflection coating, ensuring optimal performance from both sides.