49-902 20.0mm Dia. x 35.0mm FL; VIS 0deg Coated; Plano-Convex Lens VIS 0° 425-675nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 20 mm
- EFL
- 35 mm
- BFL
- 32.04 mm
- R1
- 18.09 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
49-902 20.0mm Dia. x 35.0mm FL; VIS 0deg Coated; Plano-Convex Lens VIS 0° 425-675nm
This is a Plano-Convex Lens, sourced from the renowned optical components vendor, Edmund Optics. The lens, identified as item number 49-902, boasts a diameter of 20.0mm and a focal length of 35.0mm, making it a compact yet powerful optical tool.
The lens is made from the high-quality material, n-BK7 Schott, a borosilicate glass known for its excellent optical properties, including high transparency and low dispersion. This makes the lens suitable for a wide range of applications, particularly in the visible spectrum, as it is coated for 0 degrees.
The coating on both the front and back surfaces of the lens is Edmund Optics' standard Vis-0 curve. This coating enhances the lens's performance in the visible light spectrum, specifically between 425-675nm, by reducing surface reflections and improving transmission.
The lens's geometry is another notable feature. It has a thickness of 1.48mm at the edge, increasing to 4.5mm at the center. The radius of curvature (R1) is 18.09mm, and the back focal length (BFL) is 32.04mm. The lens's base shape is circular, and its shape is spherical, which is ideal for focusing light onto a single point.