LA1740-B N-BK7 Plano-Convex Lens; Dia:75.0 mm; f=85.0 mm ARC 650-1050nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 75 mm
- EFL
- 85 mm
- BFL
- 68.8 mm
- R1
- 43.8 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
LA1740-B N-BK7 Plano-Convex Lens; Dia:75.0 mm; f=85.0 mm ARC 650-1050nm
The LA1740-B is a high-quality Plano-Convex lens, part of Thorlabs' extensive catalog of optical elements. This lens is designed with a diameter of 75.0 mm and a focal length of 85.0 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. This material, also known as Schott glass, is renowned for its low dispersion and high transmission across a broad spectrum, making it an ideal choice for many applications.
The LA1740-B features a Spherical shape, a common geometry in optical lenses due to its ability to focus light to a single point. The lens has an inner radius of 0 mm and an outer radius of 0 mm, indicating a uniform curvature across its surface.
The lens's geometry includes a thickness of 3 mm at the edge and 24.2 mm at the center. This design ensures a balanced distribution of light, reducing distortion and aberration. The lens's effective focal length (EFL) is 85 mm, a value that determines the lens's focusing power.
The LA1740-B is coated with a broadband anti-reflection coating (ARC) suitable for wavelengths between 650 and 1050 nm. This coating reduces surface reflections, enhancing the lens's transmission and overall performance.