LB7002-E3 12.7 mm Dia. ZnSe Double-Convex Lens; EFL=40mm 7-12µm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 12.7 mm
- EFL
- 40 mm
- R1
- 111.5 mm
- R2
- -111.5 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
LB7002-E3 12.7 mm Dia. ZnSe Double-Convex Lens; EFL=40mm 7-12µm
The LB7002-E3 is a high-quality spherical lens from Thorlabs, designed for use in the 7-12 µm wavelength range. This lens is a double-convex type, featuring a base shape of a circle, and is constructed from ZnSe (Zinc Selenide) material, specifically identified as "znse connolly" in the material database.
The lens has a diameter of 12.7 mm and a thickness of 2 mm at the edge, while the center thickness is slightly more at 2.4 mm. The effective focal length (EFL) of this lens is 40 mm, making it suitable for a variety of optical applications. The first radius of curvature (R1) is 111.5 mm, while the second radius (R2) is -111.5 mm, indicating a concave-convex shape.
The LB7002-E3 comes with anti-reflection coatings on both the front and back surfaces. The coating type is "tho e3znsearc7000120", which is specifically designed for use in the 7-12 µm wavelength range, further enhancing the lens' performance in its intended application.