AC508-400-AB 50.8 mm Dia. N-BAK4/N-SF10 Unmounted Achromatic Doublet; EFL=400mm 400-1100nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 50.8 mm
- R1
- 184.3 mm
- R2
- -274 mm
Material 1
- Name
- N-BAK4
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5709961571059783
- λ
- 550 nm
- B1
- 1.28834642
- C1
- 0.00779980626 μm2
- B2
- 0.132817724
- C2
- 0.0315631177 μm2
- B3
- 0.945395373
- C3
- 105.965875 μm2
Material 2
- Name
- N-SF10
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.7336618876174243
- λ
- 550 nm
- B1
- 1.62153902
- C1
- 0.0122241457 μm2
- B2
- 0.256287842
- C2
- 0.0595736775 μm2
- B3
- 1.64447552
- C3
- 147.468793 μm2
AC508-400-AB 50.8 mm Dia. N-BAK4/N-SF10 Unmounted Achromatic Doublet; EFL=400mm 400-1100nm
The AC508-400-AB is a high-quality unmounted achromatic doublet lens, sourced from the renowned optical component manufacturer, Thorlabs. This lens, with a diameter of 50.8 mm, is designed for use within the 400-1100nm wavelength range, making it suitable for a wide array of optical applications.
The lens is composed of two distinct materials, N-BAK4 and N-SF10, both from Schott, a leading manufacturer of high-quality optical glass. The use of these materials in the doublet design helps to correct chromatic aberrations, ensuring high-quality imaging across the specified wavelength range.
The lens features a focal length of 400mm, indicated by the 'EFL=400mm' in its name. This long focal length makes it ideal for use in applications requiring high magnification or narrow fields of view. The lens has a central thickness of 9mm and edge thickness of 11.2mm, providing robustness and durability.
The lens surfaces are coated with Thorlabs' Anti-Reflection (AR) coating, specifically the THo AB Achromatic AR coating. This coating reduces surface reflections, improving transmission and overall system performance. The coating is applied to both the front and back surfaces of the lens.
