48-687 6mm Dia. x -12mm FL; MgF2 Coated; Double-Concave Lens 400-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 6 mm
- EFL
- -12 mm
- BFL
- -12.33 mm
- R1
- -12.57 mm
- R2
- 12.57 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
48-687 6mm Dia. x -12mm FL; MgF2 Coated; Double-Concave Lens 400-700nm
The 48-687 is a high-quality double-concave lens, boasting a 6mm diameter and a focal length of -12mm. This lens is sourced from the reputable vendor, Edmund Optics, and is available for immediate purchase, as indicated by its valid in-stock weblink status.
The lens is crafted from the renowned N-BK7 Schott material, a borosilicate crown glass known for its excellent optical properties. This material ensures high transmission and low dispersion, making it ideal for a wide range of applications.
The 48-687 features a double-concave geometry, with radii of curvature of -12.57mm and 12.57mm for the front and back surfaces, respectively. This geometry results in a back focal length of -12.33mm and an effective focal length of -12mm. The lens has a center thickness of 1mm and an edge thickness of 1.59mm, providing robustness and durability.
The lens is coated with MgF2, a standard coating that offers excellent optical performance. This coating enhances the lens's transmission in the 400-700nm wavelength range, making it suitable for use in various applications, including imaging, beam shaping, and laser systems.