LF1544-B 25.4 mm Dia. N-BK7 Negative Meniscus Lens; EFL=-400mm 650-1050nm
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Convex)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- -400 mm
- BFL
- -397 mm
- R1
- 250 mm
- R2
- 112.5 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
LF1544-B 25.4 mm Dia. N-BK7 Negative Meniscus Lens; EFL=-400mm 650-1050nm
The LF1544-B is a spherical lens with a concave-convex base shape and a circular design, sourced from the renowned optical component manufacturer, Thorlabs. This lens boasts a diameter of 25.4 mm and a thickness of 3.4 mm at the edge, tapering down to 3 mm at the center. The effective focal length (EFL) of this lens is -400mm, making it a negative meniscus lens.
The lens is crafted from N-BK7, a high-quality borosilicate glass manufactured by Schott AG, known for its excellent optical properties and versatility. The lens is designed to operate within the wavelength range of 650-1050nm, making it suitable for a wide range of optical applications.
The lens features broadband anti-reflection coatings on both the front and back surfaces, denoted as 'tho b bbar'. These coatings are designed to minimize surface reflections, thereby enhancing transmission and improving overall system performance.