LA1238-B N-BK7 Plano-Convex Lens; Dia:75.0 mm; f=100.0 mm ARC 650-1050nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 75 mm
- EFL
- 100 mm
- BFL
- 87 mm
- R1
- 51.5 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
LA1238-B N-BK7 Plano-Convex Lens; Dia:75.0 mm; f=100.0 mm ARC 650-1050nm
The LA1238-B is a Plano-Convex lens, a type of spherical lens characterized by having one flat surface and one curved surface. This lens, sourced from Thorlabs, features a base shape of a circle, with a diameter of 75.0 mm and a thickness at the edge of 3.0 mm. The center thickness is 19.2 mm, and the effective focal length (EFL) is 100.0 mm.
The lens is made of N-BK7, a type of glass commonly used in optical applications due to its excellent optical properties. The inner radius of the lens is 0.0 mm, and the outer radius is also 0.0 mm. The lens is designed to operate at a wavelength of 587.6 nm.
The LA1238-B comes with anti-reflection (AR) coatings on both the front and back surfaces. These coatings, specifically the BBAR (Broadband Anti-Reflection) type, are designed to reduce reflection and increase transmission over a wide range of wavelengths, specifically from 650 to 1050 nm. This makes the lens ideal for use in various applications that require high transmission and low reflection.
