49-491 25mm Dia. x 40mm FL; NIR I Coated; Double-Convex Lens NIR I 600-1050nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25 mm
- EFL
- 40 mm
- BFL
- 38.21 mm
- R1
- 40.42 mm
- R2
- -40.42 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
49-491 25mm Dia. x 40mm FL; NIR I Coated; Double-Convex Lens NIR I 600-1050nm
This is a 25mm diameter by 40mm focal length double-convex lens, coated with NIR I for the spectral range of 600-1050nm. The lens is sourced from Edmund Optics, a leading vendor in the optical industry.
The lens is spherical in shape, with a base shape of a circle. The geometry of the lens includes an edge thickness of 1.34mm and a center thickness of 5.3mm. The effective focal length (EFL) is 40mm, and the radii of curvature are 40.42mm for the first surface and -40.42mm for the second surface. The back focal length (BFL) is 38.21mm. The lens is made of n-BK7 Schott material, a common and reliable option in the industry.
The lens features a coating on both the front and back surfaces. The coating is Edmund Optics' standard NIR I coating, designed for the near-infrared spectrum. This coating enhances the lens' performance in the 600-1050nm range, providing improved transmission and reduced reflection.
Please note that the lens is in stock as per the vendor's website. For more detailed information, you can refer to the vendor's website using the provided weblink.