48-701 12mm Dia. x -24mm FL; VIS-NIR Coated; Double-Concave Lens 400-1000nm
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 12 mm
- EFL
- -24 mm
- BFL
- -24.65 mm
- R1
- -25.14 mm
- R2
- 25.14 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
48-701 12mm Dia. x -24mm FL; VIS-NIR Coated; Double-Concave Lens 400-1000nm
The 48-701 is a high-quality double-concave lens, boasting a 12mm diameter and a focal length of -24mm. This lens is sourced from the reputable vendor, Edmund Optics, and is currently in stock. It is designed for use within the visible to near-infrared spectrum, spanning from 400 to 1000nm, making it a versatile choice for a wide range of optical applications.
The lens is constructed from Schott's n-BK7 glass, a popular material known for its excellent optical properties and high transmittance in the visible spectrum. The lens features a spherical shape, with radii of curvature of -25.14mm and 25.14mm for the first and second surfaces, respectively. This shape contributes to the lens's double-concave design, which is characterized by a central thickness of 2mm and edge thickness of 3.31mm.
The 48-701 lens is coated with Edmund Optics' VIS-NIR coating, specifically the edm visnir0sp2002000 coating, on both the front and back surfaces. This coating is designed to enhance the lens's performance within the visible to near-infrared spectrum, reducing surface reflections and improving overall transmission.