34-190 25mm 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
- 25 mm
- EFL
- 200 mm
- BFL
- 198.35 mm
- R1
- 205.87 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
34-190 25mm Dia. x 200mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm
The 34-190 is a double-convex lens, characterized by its spherical shape and circular base. This lens, sourced from Edmund Optics, boasts a diameter of 25mm and a focal length of 200mm, making it a versatile choice for various optical applications. The lens is fabricated from n-BK7 Schott, a high-quality optical glass known for its excellent transparency and homogeneity.
The lens features a VIS-EXT coating on both the front and back surfaces. This anti-reflection coating is specifically designed for the visible spectrum, enhancing transmission and reducing surface reflections. The coating spans the wavelength range of 350-700nm, ensuring optimal performance in a broad array of applications.
The geometry of the lens is meticulously crafted, with an inner radius of 0 and an outer radius of 0. The edge thickness measures 4.24mm, while the center thickness is 5mm. The back focal length is 198.35mm, and the effective focal length is 200mm.
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