45-899 30mm Dia. x 75mm 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
- 30 mm
- EFL
- 75 mm
- BFL
- 73.35 mm
- R1
- 76.67 mm
- R2
- -76.67 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
45-899 30mm Dia. x 75mm FL; VIS-NIR Coated; Double-Convex Lens VIS-NIR 400-1000nm
The 45-899 is a high-quality double-convex lens, designed and manufactured by Edmund Optics, a leading global supplier of optical components. This lens boasts a 30mm diameter and a focal length of 75mm, making it suitable for a wide range of applications.
The lens is constructed from N-BK7 Schott, a popular optical glass known for its excellent transparency and low dispersion. This material ensures high-quality imaging and minimal chromatic aberration. The lens features a double-convex geometry, with radii of curvature of 76.67mm and -76.67mm, respectively. This design provides a large numerical aperture, enhancing the lens' light-gathering capability.
The 45-899 is coated with a VIS-NIR coating, specifically the EDM VISNIR0SP2002000 coating, on both the front and back surfaces. This coating is designed to enhance the lens' performance in the visible and near-infrared regions of the spectrum, from 400nm to 1000nm. It provides high transmission, low reflectivity, and excellent environmental stability, making it ideal for use in demanding optical systems.
The lens has a thickness of 2mm at the edge and 4.96mm at the center, providing robustness and durability. The inner and outer radii are 0mm, indicating a uniform curvature throughout the lens. The effective focal length (EFL) is 75mm, and the back focal length (BFL) is 73.35mm.