LE1202-A 25.4 mm Dia. N-BK7 Positive Meniscus Lens; EFL=200mm 350-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Concave)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- 200 mm
- BFL
- 196.5 mm
- R1
- 66.2 mm
- R2
- 182.2 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
LE1202-A 25.4 mm Dia. N-BK7 Positive Meniscus Lens; EFL=200mm 350-700nm
The LE1202-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, a high-quality glass material from Schott, ensuring excellent optical performance. It features a double-sided Anti-Reflection coating (AR coating), denoted as 'tho a bbar' on both the front and back surfaces. This coating enhances transmission and reduces unwanted reflections, further optimizing the lens's performance.
The lens's geometry is characterized by a diameter of 25.4mm, an edge thickness of 2mm, and a center thickness of 2.8mm. The Effective Focal Length (EFL) is 200mm, and the Back Focal Length (BFL) is 196.5mm. The first radius of curvature (R1) is 66.2mm, while the second radius (R2) is 182.2mm. The lens's design is Circular, and it features a Spherical shape.
The lens's data is currently in stock, according to the vendor's website link provided: https://www.thorlabs.com/thorproduct.cfm?partnumber=LE1202-A. This information is subject to change, and we recommend checking the vendor's website for the most up-to-date status.
