LE1156-A 25.4 mm Dia. N-BK7 Positive Meniscus Lens; EFL=125mm 350-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Concave)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- 125 mm
- BFL
- 121.2 mm
- R1
- 40.6 mm
- R2
- 106.9 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
LE1156-A 25.4 mm Dia. N-BK7 Positive Meniscus Lens; EFL=125mm 350-700nm
The LE1156-A is a 25.4 mm diameter Spherical Lens with a Positive Meniscus shape, sourced from the reputable vendor Thorlabs. This lens is specifically designed for use within the wavelength range of 350-700nm, with a central wavelength of 587.6nm.
The lens is made from N-BK7 Schott, a high-quality optical glass, and features a double-sided Anti-Reflection coating (AR coating), denoted as 'tho a bbar' for both the front and back surfaces. This coating enhances the lens's performance by reducing surface reflections and increasing transmission.
The lens's geometry is characterized by a diameter of 25.4mm, an edge thickness of 2mm, and a center thickness of 3.3mm. The Effective Focal Length (EFL) is 125mm, and the Back Focal Length (BFL) is 121.2mm. The first radius of curvature (R1) is 40.6mm, while the second radius (R2) is 106.9mm. The lens's design is Circular, and it features a Spherical shape.
The item data indicates that this lens is in stock, according to the vendor's website. For more detailed information, users are encouraged to visit the provided weblink: https://www.thorlabs.com/thorproduct.cfm?partnumber=LE1156-A
