17-328 25mm Dia. UVFS Aspheric Lens; EFL=50mm; NA=0.23 Uncoated
- Type
- Lens
- Subtype
- Aspheric Lens
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25 mm
- EFL
- 50 mm
- BFL
- 45.1 mm
- R1
- 23.81 mm
- R2
Material
- Name
- HPFS7980
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.4760888871717037
- λ
- 355 nm
- B1
- 0.683740494
- C1
- 0.00460352869 μm2
- B2
- 0.420323613
- C2
- 0.0133968856 μm2
- B3
- 0.58502748
- C3
- 64.4932732 μm2
17-328 25mm Dia. UVFS Aspheric Lens; EFL=50mm; NA=0.23 Uncoated
The 17-328 is a 25mm diameter, uncoated UV Fused Silica Aspheric Lens, available from Edmund Optics. This lens is designed for use at a wavelength of 355nm and has a numerical aperture (NA) of 0.23.
The lens geometry is characterized by its inner radius of 0mm, outer radius of 0mm, and a thickness at the edge of 3.82mm. The effective focal length (EFL) is 50mm, and the back focal length (BFL) is 45.1mm. The thickness at the center of the lens is 7.2mm.
The aspheric shape of the lens is defined by its first and second radii of curvature (R1 and R2), which are 23.805mm and 0mm respectively. The conic constant (K1) is -0.663.
The lens does not have any coating, as indicated by the empty 'coating' parameter in the item data. This could make it suitable for applications where coating might introduce unwanted reflections or alter the spectral properties of the light passing through.
The lens is available from Edmund Optics, as indicated in the 'vendor' parameter of the item data. The link to the product page is provided, and the status of the link is reported as 'Valid - in stock', suggesting that the lens is readily available for purchase.
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