LE5234-E 12.7 mm Dia. CaF2 Positive Meniscus Lens; EFL=80mm 2-5µm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Concave)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 12.7 mm
- EFL
- 80 mm
- BFL
- 76.5 mm
- R1
- 20 mm
- R2
- 49.1 mm
Material
- Name
- CaF2
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.4096399504333625
- λ
- 4000 nm
- B1
- 0.5675888
- C1
- 0.00252643 μm2
- B2
- 0.4710914
- C2
- 0.010078333 μm2
- B3
- 3.8484723
- C3
- 1200.555973 μm2
LE5234-E 12.7 mm Dia. CaF2 Positive Meniscus Lens; EFL=80mm 2-5µm
The LE5234-E is a Spherical Lens (Convex-Concave) with a base shape of Circular, designed and manufactured by Thorlabs. This lens boasts a diameter of 12.7 mm and a thickness edge of 2.4 mm, with a center thickness of 3 mm. The Effective Focal Length (EFL) is 80 mm, and the Radius of Curvature (RoC) for the first surface is 20 mm, while the second surface has an RoC of 49.1 mm. The Back Focal Length (BFL) is 76.5 mm, and the Inner and Outer Radius are both 0 mm.
This lens is made from CaF2 (Calcium Fluoride) material, specifically identified as "caf2 mal-1963". It is designed to operate at a wavelength of 4000 nm. The front and back surfaces of the lens are coated with tho ecaf2arc20005000, a broadband anti-reflection coating that enhances transmission in the UV-VIS-NIR spectral range (200-5000 nm).
Please note that the weblink provided is valid and the product is in stock, making it readily available for your optical needs.