89-203 50mm Dia. x 200mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 50 mm
- EFL
- 200 mm
- BFL
- 198.33 mm
- R1
- 205.86 mm
- R2
- -205.86 mm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5167984379050088
- λ
- 587.6 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
89-203 50mm Dia. x 200mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm
The 89-203 is a high-quality double-convex lens, boasting a 50mm diameter and a focal length of 200mm. This lens is sourced from the reputable vendor, Edmund Optics, and is currently in stock, as indicated by its weblink status.
The lens is designed with a base shape of a circle and features a geometry that includes an edge thickness of 2mm and a center thickness of 5.05mm. The effective focal length (EFL) is 200mm, while the back focal length (BFL) is 198.33mm. The first and second radii (R1 and R2) are 205.86mm and -205.86mm, respectively. The inner and outer radii are both zero.
The lens is made from the material n-bk7 schott, a common choice for optical elements due to its excellent optical properties. The wavelength of this lens is 587.6nm.
The lens features a VIS-EXT coating on both the front and back, providing enhanced performance in the visible light spectrum, specifically within the range of 350-700nm. This coating aids in reducing surface reflections, thereby improving transmission and image quality.