LF1015-A 25.4 mm Dia. N-BK7 Negative Meniscus Lens; EFL=-300mm 350-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Convex)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- -300 mm
- BFL
- -297.8 mm
- R1
- 250 mm
- R2
- 95.1 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
LF1015-A 25.4 mm Dia. N-BK7 Negative Meniscus Lens; EFL=-300mm 350-700nm
The LF1015-A is a high-quality spherical lens from Thorlabs, featuring a negative meniscus design with a diameter of 25.4 mm. This lens is made from N-BK7, a popular glass type known for its excellent optical properties, particularly in the visible spectrum. The lens has a center thickness of 3 mm and an edge thickness of 3.5 mm, providing a robust and durable structure.
The lens's effective focal length (EFL) is -300mm, indicating that it is a diverging lens, often used in applications such as beam expansion or collimation. The lens is designed to work optimally in the wavelength range of 350-700nm, making it suitable for a wide range of applications in the visible spectrum.
The lens features anti-reflection coatings on both the front and back surfaces, denoted as 'tho a bbar'. These coatings are designed to reduce surface reflections and increase transmission, thereby enhancing the overall performance of the lens. The lens's shape is spherical, with radii of curvature of 250mm and 95.1mm for the first and second surfaces, respectively.
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