89-193 40mm Dia. x 40mm 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
- 40 mm
- EFL
- 40 mm
- BFL
- 37.54 mm
- R1
- 60.85 mm
- R2
- -60.85 mm
Material
- Name
- N-SF11
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.7847141030246312
- λ
- 587.6 nm
- B1
- 1.73759695
- C1
- 0.013188707 μm2
- B2
- 0.313747346
- C2
- 0.0623068142 μm2
- B3
- 1.89878101
- C3
- 155.23629 μm2
89-193 40mm Dia. x 40mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm
The 89-193 is a double-convex lens, characterized by its spherical shape and circular base. This lens, sourced from Edmund Optics, boasts a diameter of 40mm and a focal length of 40mm, making it a versatile choice for various optical applications. The lens is made from n-sf11 Schott, a high-index material known for its excellent optical properties.
The lens features a double-convex geometry, with radii of curvature of 60.85mm for the first surface and -60.85mm for the second. This geometry results in a back focal length of 37.54mm and an effective focal length of 40mm. The lens has a center thickness of 8.5mm and an edge thickness of 1.74mm, providing robustness and durability.
The 89-193 lens is coated with EDM VIS-EXT on both the front and back surfaces. This coating enhances its performance in the visible spectrum, specifically between 350nm and 700nm. The coating ensures high transmission, low reflectance, and protection against environmental factors, making the lens suitable for use in demanding optical systems.
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