PAC025 12.7 mm Dia. N-BAK4/N-SF10 Visible Achromatic Doublet; EFL=38.1mm MgF2 400-700nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- MKS/Newport
Properties
- Shape
- Circular
- Diameter
- 12.7 mm
- EFL
- 38.1 mm
- R1
- -18.58 mm
- R2
- -61.93 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
PAC025 12.7 mm Dia. N-BAK4/N-SF10 Visible Achromatic Doublet; EFL=38.1mm MgF2 400-700nm
The PAC025 is a high-quality optical lens from MKS/Newport, designed for visible light applications within the 400-700nm spectrum. This lens is a multiplet, specifically an achromatic doublet, which means it is composed of two separate lenses made from different materials to correct chromatic and spherical aberrations.
The lens features a 12.7 mm diameter and a total thickness of 3.3 mm at the edge. The inner radius is 0 mm, and the outer radius is also 0 mm, indicating a circular shape. The effective focal length (EFL) of this lens is 38.1 mm, making it suitable for a variety of optical applications.
The PAC025 is made from two different materials: N-BAK4 and N-SF10, both from Schott. These materials were chosen for their specific refractive indices and dispersion properties, which contribute to the lens's ability to correct chromatic aberrations.
The lens is coated with MgF2 on both the front and back surfaces. This coating, known as MgF2bk7fromfigur, is designed to reduce reflection and increase transmission, enhancing the overall performance of the lens.
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