LA8949-E 25.4 mm Dia. Silicon Plano-Convex Lens; EFL=75mm 2-5µm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- 75 mm
- R1
- 181.9 mm
Material
- Name
- Silicon
- Dispersion Equation
- Sellmeier
- n (λ)
- 3.4253004915192267
- λ
- 4000 nm
- B1
- 10.6684293
- C1
- 0.090912191 μm2
- B2
- 0.003043475
- C2
- 1.287660172 μm2
- B3
- 1.54133408
- C3
- 1218816 μm2
LA8949-E 25.4 mm Dia. Silicon Plano-Convex Lens; EFL=75mm 2-5µm
The LA8949-E is a Spherical Lens (Plano-Convex) with a circular base shape, sourced from the reputable vendor Thorlabs. This lens boasts a diameter of 25.4 mm and a thickness of 3.6 mm at the edge, with a center thickness of 4 mm. The Effective Focal Length (EFL) is 75 mm, designed for use with a wavelength of 4000 nm.
The lens is constructed from Silicon, specifically Silicon Sal Vil 1957, and features a coating on both the front and back surfaces. The front coating is THo ESIARC20005000, while the back coating is also THo ESIARC20005000. This coating enhances the lens's performance and durability.
The lens's geometry is spherical, with an inner radius of 0 mm and an outer radius of 0 mm. The curvature radius of the first surface (R1) is 181.9 mm. The lens is designed for use with a wavelength range of 2 to 5 µm, making it suitable for a variety of applications.
For more information, including availability and pricing, please refer to the vendor's website at https://www.thorlabs.com/thorproduct.cfm?partnumber=LA8949-E. The link has been verified and the product is currently in stock.