88-595-INK 75 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=400mm VIS 0° 425-675nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 75 mm
- EFL
- 400 mm
- R1
- 246.5 mm
- R2
- -180.92 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
88-595-INK 75 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=400mm VIS 0° 425-675nm
The 88-595-INK is a high-quality achromatic doublet lens, boasting a 75 mm diameter and an effective focal length (EFL) of 400mm, 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 through their website.
The lens is constructed from two types of glass, N-BK7 and N-SF5, both from Schott, ensuring excellent optical performance. The front and back surfaces of the lens are coated with EDm VIS-0 std curve coatings, further enhancing its light transmission capabilities within the specified wavelength range.
The lens geometry is meticulously designed, with a thickness of 12.84mm at the edge, a center thickness of 11.05mm, and a thickness of 6mm at the center a. The lens's first and second radii are 246.5mm and -180.92mm, respectively, while the third radius is -526.7mm. The lens is circular in shape and is a multiplet, indicating it is composed of multiple elements.
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