LD7671-E3 25.4 mm Dia. ZnSe Double-Concave Lens; EFL=-25.4mm 7-12µm
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- -25.4 mm
- R1
- -71.8 mm
- R2
- 71.8 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
LD7671-E3 25.4 mm Dia. ZnSe Double-Concave Lens; EFL=-25.4mm 7-12µm
The LD7671-E3 is a high-quality spherical lens from Thorlabs, designed for use in the 7-12 µm wavelength range. This lens is a double-concave type, featuring a base shape of a circle, and is constructed from ZnSe material, specifically the ZnSe CONNOLLY variant.
The lens has a diameter of 25.4 mm and a center thickness of 2 mm. The effective focal length (EFL) is -25.4 mm, indicating that it is a diverging lens. The first radius of curvature (R1) is -71.8 mm, and the second radius of curvature (R2) is 71.8 mm. The lens does not have an inner or outer radius.
The LD7671-E3 is coated with the THo E3ZnSeARC7000120 coating on both the front and back surfaces, which enhances its performance in the specified wavelength range. This lens is currently in stock and available for immediate shipping. For more information, please refer to the vendor's website using the provided weblink.