45-875 12mm Dia. x 30mm FL; VIS-NIR Coated; Double-Convex Lens VIS-NIR 400-1000nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 12 mm
- EFL
- 30 mm
- BFL
- 28.75 mm
- R1
- 30.36 mm
- R2
- -30.36 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
45-875 12mm Dia. x 30mm FL; VIS-NIR Coated; Double-Convex Lens VIS-NIR 400-1000nm
This is a 12mm diameter, double-convex lens with a focal length of 30mm, designed for use in the visible to near-infrared spectrum (VIS-NIR), specifically covering the wavelength range of 400-1000nm. The lens is sourced from the reputable vendor, Edmund Optics.
The lens is made from the popular optical material, n-BK7 Schott, which is known for its excellent optical properties and wide transparency range. The double-convex shape, with radii of curvature of 30.36mm for both the front and back surfaces, ensures a high level of light concentration and minimal spherical aberration.
The lens features a broadband anti-reflection coating, specifically the 'edm visnir0sp2002000' coating, on both the front and back surfaces. This coating is designed to reduce surface reflections and increase transmission in the VIS-NIR range, enhancing the overall performance of the lens.
The lens has a central thickness of 3.7mm and an edge thickness of 2.5mm, providing a robust and durable structure. The back focal length (BFL) is 28.75mm, and the effective focal length (EFL) is 30mm, which are crucial specifications for lens selection and system design.