AC254-300-B 25.4 mm Dia. SF5/N-SF6HT Unmounted Achromatic Doublet; EFL=300mm 650-1050nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- R1
- 62.4 mm
- R2
- -77.4 mm
Material 1
- Name
- SF5
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.6771178435097918
- λ
- 550 nm
- B1
- 1.46141885
- C1
- 0.0111826126 μm2
- B2
- 0.247713019
- C2
- 0.0508594669 μm2
- B3
- 0.949995832
- C3
- 112.041888 μm2
Material 2
- Name
- N-SF6HT
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.811866267147773
- λ
- 550 nm
- B1
- 1.77931763
- C1
- 0.0133714182 μm2
- B2
- 0.338149866
- C2
- 0.0617533621 μm2
- B3
- 2.08734474
- C3
- 174.01759 μm2
AC254-300-B 25.4 mm Dia. SF5/N-SF6HT Unmounted Achromatic Doublet; EFL=300mm 650-1050nm
The AC254-300-B is a high-quality unmounted achromatic doublet lens, designed and manufactured by Thorlabs. This lens is specifically engineered for use within the 650-1050nm wavelength range, making it suitable for a wide array of applications within the optical spectrum.
The lens features a base shape of a circle, with a diameter of 25.4mm. The edge thickness of the lens is 5.3mm, while the inner and outer radii are 0mm. The lens's first and second radii of curvature are 62.4mm and -77.4mm respectively, with a third radius of curvature at 134mm. The center thickness of the lens is 4mm for the first section and 2mm for the second.
The lens is composed of two materials: SF5 from Schott and N-SF6HT from Schott. These materials have been carefully selected to provide optimal performance within the specified wavelength range. The lens is coated with THo AC650-1050-B on both the front and back surfaces, further enhancing its performance and durability.
The lens is a multiplet, meaning it is composed of multiple elements. This design allows for the correction of chromatic aberrations, ensuring high-quality imaging and light transmission. The lens is unmounted, providing users with the flexibility to integrate it into their own systems and setups.
