45-039 50.0mm Dia. x -125 FL; MgF2 Coated; Plano-Concave Lens 400-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 50 mm
- EFL
- -125 mm
- BFL
- -128.3 mm
- R1
- -64.6 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
45-039 50.0mm Dia. x -125 FL; MgF2 Coated; Plano-Concave Lens 400-700nm
The 45-039 is a plano-concave lens with a diameter of 50.0mm, a focal length of -125mm, and a central thickness of 5mm. The lens is sourced from Edmund Optics and is currently in stock. It is designed for use within the wavelength range of 400-700nm, making it suitable for a wide range of optical applications.
The lens is made from N-BK7 Schott, a popular optical glass due to its excellent optical properties and high Abbe number. The lens features a spherical shape, with a radius of curvature of -64.6mm on the front surface and an inner radius of 0mm. The back surface of the lens is flat.
The lens is coated with EDM MgF2 std curve on both the front and back surfaces. This coating is a standard coating that provides excellent optical performance, low reflectivity, and good environmental stability. The coating is designed to operate within the specified wavelength range, enhancing the overall performance of the lens.
The lens has a thickness of 9.87mm at the edge, providing structural rigidity and resistance to deformation. The back focal length of the lens is -128.3mm, which is the distance from the back surface of the lens to the focal point.
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