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16-958 25mm Dia. N-BK7 Precision Aspheric Lens; EFL=37.5mm; NA=0.33 VIS-EXT Plus 350-700nm

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
Product webpage
Edmund Optics products in the 3DOptix catalog

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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