16-958 25mm Dia. N-BK7 Precision Aspheric Lens; EFL=37.5mm; NA=0.33 VIS-EXT Plus 350-700nm
- Type
- Lens
- Subtype
- Aspheric Lens
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25 mm
- EFL
- 37.5 mm
- BFL
- 31.09 mm
- R1
- 19.38 mm
- R2
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
16-958 25mm Dia. N-BK7 Precision Aspheric Lens; EFL=37.5mm; NA=0.33 VIS-EXT Plus 350-700nm
This is a high-precision asperic lens from Edmund Optics, with the catalog number 16-958. It is designed for use in the visible light spectrum, specifically between 350 and 700nm. The lens is made from N-BK7, a type of borosilicate glass known for its excellent optical properties.
The lens has a diameter of 25mm and a numerical aperture (NA) of 0.33. The effective focal length (EFL) is 37.5mm, making it suitable for a variety of optical applications. The lens is coated with Edmund Optics' VIS-EXT Plus coating, which is designed to enhance transmission in the specified wavelength range.
The lens geometry includes an inner radius of 0mm, an outer radius of 0mm, and a thickness at the edge of 5.49mm. The thickness at the center is 9.72mm. The aspheric surface is defined by a conic constant of -0.6698934 and a sagitta of 0 for a point at a distance of 0mm from the lens axis.
The coating on both the front and back surfaces of the lens is Edmund Optics' VIS-EXT Plus coating, which is designed to enhance transmission in the specified wavelength range. The lens is currently in stock and available for purchase through the provided weblink.
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