88-691 12.7mm Dia. x 44.5mm FL; VIS-EXT Coated Plano-Convex Lens VIS-EXT 350-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 12.7 mm
- EFL
- 44.5 mm
- BFL
- 42.69 mm
- R1
- 23 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
88-691 12.7mm Dia. x 44.5mm FL; VIS-EXT Coated Plano-Convex Lens VIS-EXT 350-700nm
The 88-691 is a plano-convex lens, a type of spherical lens, sourced from Edmund Optics. This lens boasts a diameter of 12.7mm and a focal length of 44.5mm, making it suitable for a wide range of optical applications. The lens is made from n-BK7 Schott, a high-quality optical glass known for its excellent transparency and low dispersion.
The lens features a VIS-EXT coating on both the front and back surfaces. This coating is designed to extend the visible range of the lens, making it suitable for use in wavelengths between 350 and 700nm. The coating also helps to reduce surface reflections, improving the overall efficiency and performance of the lens.
The geometry of the lens includes a thickness of 1.86mm at the edge and 2.75mm at the center. The back focal length is 42.69mm, and the radius of curvature is 23mm. The lens has no inner or outer radius, indicating a simple, straightforward design.
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