48-344 9mm 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
- 9 mm
- EFL
- -9 mm
- BFL
- -9.61 mm
- R1
- -14.6 mm
- R2
- 14.6 mm
Material
- Name
- N-SF11
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.7847141030246312
- λ
- 587.6 nm
- B1
- 1.73759695
- C1
- 0.013188707 μm2
- B2
- 0.313747346
- C2
- 0.0623068142 μm2
- B3
- 1.89878101
- C3
- 155.23629 μm2
48-344 9mm Dia. x -9mm FL; VIS 0deg Coated; Double-Concave Lens 425-675nm
The 48-344 is a spherical lens with a base shape of a circle, sourced from the reputable vendor Edmund Optics. This lens is a Double-Concave type, designed for use within the visible light spectrum, specifically at a wavelength of 587.6nm. The lens has a diameter of 9mm and a focal length of -9mm, making it a powerful tool for a variety of optical applications.
The lens features a center thickness of 2.25mm and an edge thickness of 3.48mm, providing a robust structure while maintaining a compact form factor. The inner and outer radii are both 0, indicating a symmetrical design. The back focal length (BFL) is -9.61mm, a critical specification for precise optical alignment.
The 48-344 lens is constructed from n-sf11 Schott material, a high-index glass known for its excellent optical properties. This material, combined with the lens's concave-concave geometry, allows for superior light bending and focusing capabilities.
The lens is coated with EDM Vis-0 std curve on both the front and back surfaces. This coating enhances the lens's performance within the visible light spectrum, providing improved transmission and reduced reflection. The coating is standard, ensuring reliability and consistency in its performance.