LF1015-C 25.4 mm Dia. N-BK7 Negative Meniscus Lens; EFL=-300mm 1050-1700nm
- 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-C 25.4 mm Dia. N-BK7 Negative Meniscus Lens; EFL=-300mm 1050-1700nm
The LF1015-C is a high-quality spherical lens from Thorlabs, featuring a concave-convex base shape and a circular geometry. With a diameter of 25.4 mm, this lens is designed for use in the 1050-1700nm wavelength range, making it suitable for a wide range of optical applications.
The lens has a center thickness of 3 mm and an edge thickness of 3.5 mm, providing a robust and durable structure. The effective focal length (EFL) of this lens is -300mm, indicating its negative meniscus nature. The first radius of curvature (R1) is 250 mm, while the second radius (R2) is 95.1 mm, contributing to its unique optical properties.
The lens is made from n-BK7 Schott, a popular optical glass known for its excellent transmission properties and low auto-fluorescence. This material is widely used in various optical systems due to its superior optical performance.
The lens is coated with THo C Bbar on both the front and back surfaces, enhancing its durability and performance in the specified wavelength range. This coating helps to reduce reflection and increase transmission, making the lens more efficient in transmitting light.