48-938 6mm Dia. x -9mm FL; VIS 0deg Coated; Double-Concave Lens 425-675nm
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 6 mm
- EFL
- -9 mm
- BFL
- -9.32 mm
- R1
- -9.47 mm
- R2
- 9.47 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
48-938 6mm Dia. x -9mm FL; VIS 0deg Coated; Double-Concave Lens 425-675nm
The 48-938 is a Spherical Lens (Concave-Concave) type of optical component, sourced from the renowned vendor Edmund Optics. This lens boasts a base shape of Circular geometry, designed to facilitate a variety of optical applications.
The lens has a diameter of 6mm, with a thickness at the edge of 1.79mm and a center thickness of 1mm. The effective focal length (EFL) is -9mm, making it a double-concave lens. The first radius of curvature (R1) is -9.47mm, while the second radius of curvature (R2) is 9.47mm. The back focal length (BFL) is -9.32mm. The lens does not have any inner or outer radius specified.
The lens is made of n-BK7 Schott material, a popular choice for its high refractive index and low dispersion. It is designed to operate within the visible light spectrum, specifically at a wavelength of 587.6nm.
The lens features a front and back coating of EDM VIS-0 STD CURVE, providing standard anti-reflection properties. This coating enhances the lens' performance by reducing surface reflections, thereby increasing transmission and improving image quality.
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