LE5838-E 12.7 mm Dia. CaF2 Positive Meniscus Lens; EFL=20mm 2-5µm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Concave)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 12.7 mm
- EFL
- 20 mm
- BFL
- 16.3 mm
- R1
- 7.5 mm
- R2
- 72.4 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
LE5838-E 12.7 mm Dia. CaF2 Positive Meniscus Lens; EFL=20mm 2-5µm
The LE5838-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 1.5 mm, with a thickness center of 4.7 mm. The Effective Focal Length (EFL) is 20 mm, and the Back Focal Length (BFL) is 16.3 mm. The lens features an Inner Radius of 0 mm and an Outer Radius of 0 mm.
This lens is crafted from CaF2 (Calcium Fluoride) material, identified as "caf2 mal-1963" in the Material ID. It is designed to operate at a wavelength of 4000 nm. The lens is coated with tho ecaf2arc20005000 on both the front and back, providing enhanced durability and performance.
The LE5838-E is currently in stock and available for immediate purchase through the vendor's website, as indicated by the "weblink status" in the item data. This lens is a reliable and high-quality option for users seeking a Spherical Lens with the specified parameters.
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