LE7117-F 25.4 mm Dia. ZnSe Positive Meniscus Lens; EFL=750mm 8-12µm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Concave)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- 750 mm
- BFL
- 742 mm
- R1
- 219.6 mm
- R2
- 274.5 mm
Material
- Name
- ZnSe
- Dispersion Equation
- Sellmeier
- n (λ)
- 2.402780893783937
- λ
- 10600 nm
- B1
- 4.45813734
- C1
- 0.040344681 μm2
- B2
- 0.467216334
- C2
- 0.15317139 μm2
- B3
- 2.8956629
- C3
- 2221.822369 μm2
LE7117-F 25.4 mm Dia. ZnSe Positive Meniscus Lens; EFL=750mm 8-12µm
The LE7117-F is a Spherical Lens (Convex-Concave) with a base shape of Circular, designed and manufactured by Thorlabs. This lens boasts a diameter of 25.4 mm and a thickness at the edge of 3.9 mm, while the center thickness is slightly more at 4 mm. The Effective Focal Length (EFL) is a substantial 750 mm, making it suitable for a range of applications.
The lens's geometry is defined by its radii; the first radius (R1) is 219.6 mm, and the second radius (R2) is 274.5 mm. The Back Focal Length (BFL) is 742 mm, and both the inner and outer radii are 0 mm. The lens is made from ZnSe (Zinc Selenide) material, specifically the connolly variant, and is designed to operate at a wavelength of 10600 nm.
The LE7117-F comes with anti-reflective coatings on both the front and back surfaces, specifically the tho znse-arced 8-12 coating. This coating enhances the lens's performance in the 8-12 µm wavelength range, making it ideal for infrared applications.
More Lens
