34-191 40mm Dia. x 80mm 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
- 80 mm
- BFL
- 77.32 mm
- R1
- 81.3 mm
- R2
- -81.3 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
34-191 40mm Dia. x 80mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm
The 34-191 is a high-quality double-convex lens, sourced from the reputable optical vendor, Edmund Optics. This lens boasts a 40mm diameter and a focal length of 80mm, making it a versatile choice for a variety of optical applications.
The lens is crafted from n-BK7 Schott, a high-grade optical glass known for its excellent transparency and low dispersion. This material ensures that the lens delivers sharp, clear images with minimal chromatic aberration.
The 34-191 features a VIS-EXT coating on both the front and back surfaces. This advanced coating enhances the lens's performance in the visible light spectrum, specifically within the 350-700nm range. It improves light transmission, reduces surface reflections, and increases the lens's overall durability.
The geometry of the lens is meticulously designed, with an edge thickness of 3mm and a center thickness of 8mm. The inner and outer radii are 0mm, and the back focal length is 77.32mm. These specifications contribute to the lens's high-performance capabilities.