35-993 9 mm Dia. N-FK5/F2HT Achromatic Doublet; EFL=18mm UV-VIS 345-700nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 9 mm
- EFL
- 18 mm
- R1
- 9.99 mm
- R2
- -8.07 mm
Material 1
- Name
- N-FK5
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.4889720412922705
- λ
- 550 nm
- B1
- 0.844309338
- C1
- 0.00475111955 μm2
- B2
- 0.344147824
- C2
- 0.0149814849 μm2
- B3
- 0.910790213
- C3
- 97.8600293 μm2
Material 2
- Name
- F2HT
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.6236551229276037
- λ
- 550 nm
- B1
- 1.34533359
- C1
- 0.00997743871 μm2
- B2
- 0.209073176
- C2
- 0.0470450767 μm2
- B3
- 0.937357162
- C3
- 111.886764 μm2
35-993 9 mm Dia. N-FK5/F2HT Achromatic Doublet; EFL=18mm UV-VIS 345-700nm
The 35-993 is a high-quality achromatic doublet lens, sourced from the renowned optical vendor, Edmund Optics. This lens is designed for use in the ultraviolet to visible light spectrum, spanning from 345 to 700 nanometers. The lens is crafted from two types of Schott glass, N-FK5 and F2HT, which are known for their excellent optical properties.
The lens features a 9 millimeter diameter and an effective focal length of 18 millimeters. The geometry of the lens is carefully designed, with a thickness of 4.02 millimeters at the edge and 4 millimeters at the center. The lens also features a central thickness of 1.5 millimeters and an inner radius of 0 millimeters, with the outer radius also being 0 millimeters.
The 35-993 lens is coated with Edmund Optics' standard UV-VIS coating on both the front and back surfaces. This coating enhances the lens's performance in the UV-VIS range, ensuring optimal light transmission and reducing unwanted reflections.
The lens is available in a multiplet configuration, offering superior optical performance and versatility. The multiplet design allows for precise control over the lens's optical properties, making it ideal for a wide range of applications.
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