PAC088 50.8 mm Dia. N-BK7/N-SF5 Visible Achromatic Doublet; EFL=250mm MgF2 400-700nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- MKS/Newport
Properties
- Shape
- Circular
- Diameter
- 50.8 mm
- EFL
- 250 mm
- R1
- -112.15 mm
- R2
- -335.97 mm
Material 1
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5185223876207927
- λ
- 550 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
Material 2
- Name
- N-SF5
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.6771143911586193
- λ
- 550 nm
- B1
- 1.52481889
- C1
- 0.011254756 μm2
- B2
- 0.187085527
- C2
- 0.0588995392 μm2
- B3
- 1.42729015
- C3
- 129.141675 μm2
PAC088 50.8 mm Dia. N-BK7/N-SF5 Visible Achromatic Doublet; EFL=250mm MgF2 400-700nm
The PAC088 is a high-quality achromatic doublet lens, designed and manufactured by MKS/Newport. This lens is specifically engineered for visible light applications, with a wavelength range of 400-700nm. The lens boasts a diameter of 50.8mm and an effective focal length (EFL) of 250mm, making it suitable for a wide range of optical systems.
The lens is composed of two elements, made from N-BK7 and N-SF5 Schott glass. These materials were chosen for their excellent optical properties, including high transparency and low dispersion. The lens features a complex geometry, with radii of curvature of r1=-112.149, r2=-335.971, and r=151.578. The edge thickness is 9.7mm, while the center thicknesses are 8.5mm and 4.33mm, contributing to the lens's robustness and durability.
The PAC088 is coated with a New MgF2BK7 from Figur coating on both the front and back surfaces. This coating enhances the lens's performance by reducing reflection and increasing transmission, thereby improving the overall efficiency and quality of the optical system.
