88-593 75 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=200mm VIS 0° 425-675nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 75 mm
- EFL
- 200 mm
- R1
- 118.81 mm
- R2
- -96.37 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
88-593 75 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=200mm VIS 0° 425-675nm
The 88-593 is a high-quality Achromatic Doublet lens, boasting a 75 mm diameter and an effective focal length (EFL) of 200mm, specifically designed for the visible light spectrum ranging from 425 to 675nm. This lens is sourced from the renowned optical vendor, Edmund Optics, and is available for purchase on their official website.
The lens is constructed from two types of materials, N-BK7 and N-SF5, both from Schott, ensuring superior optical performance. The front and back surfaces of the lens are coated with the EDM VIS-0 standard curve coating, providing excellent transmission and protection against environmental factors.
The lens geometry is meticulously designed, with a thickness of 15.42mm at the edge, a center thickness of 17.94mm, and a 6mm air gap at the center. The first and second radii are 118.81mm and -96.37mm respectively, while the third radius is -288.97mm. The lens is circular in shape and classified as a Multiplet due to its complex construction.
