47-910 20mm Dia. x -50 FL; VIS 0deg Coated; Plano-Concave Lens 425-675nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 20 mm
- EFL
- -50 mm
- BFL
- -52.31 mm
- R1
- -25.84 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
47-910 20mm Dia. x -50 FL; VIS 0deg Coated; Plano-Concave Lens 425-675nm
The 47-910 is a Plano-Concave Lens with a 20mm diameter and a focal length of -50mm, sourced from the reputable optical components vendor, Edmund Optics. This lens is designed for use within the visible light spectrum, specifically between 425-675nm.
The lens's geometry is characterized by a thickness of 5.21mm at the edge, thinning to 3.5mm at the center. The front surface has a radius of curvature of -25.84mm, and the back focal length is -52.31mm. The lens's inner and outer radii are both zero, indicating a flat surface on the concave side.
The lens is made from N-BK7 Schott glass, a popular choice for its high refractive index and low dispersion. This makes it suitable for a wide range of optical applications.
The lens features a standard coating on both the front and back surfaces, specifically the 'edm vis-0 std curve' coating. This coating is designed to optimize performance within the visible light spectrum.
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