49-694 15mm Dia. UVFS Aspheric Lens; EFL=20mm; NA=0.38 UV 250-425nm
- Type
- Lens
- Subtype
- Aspheric Lens
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 15 mm
- EFL
- 20 mm
- BFL
- 15.89 mm
- R1
- 9.17 mm
- R2
Material
- Name
- HPFS7980
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.4584656081538023
- λ
- 587.6 nm
- B1
- 0.683740494
- C1
- 0.00460352869 μm2
- B2
- 0.420323613
- C2
- 0.0133968856 μm2
- B3
- 0.58502748
- C3
- 64.4932732 μm2
49-694 15mm Dia. UVFS Aspheric Lens; EFL=20mm; NA=0.38 UV 250-425nm
This is the 49-694 model from Edmund Optics, a 15mm diameter UVFS (UV fused silica) Aspheric Lens. The lens is designed with a high numerical aperture (NA) of 0.38, making it suitable for applications that require a wide angle of view or high light-gathering capability.
The lens is coated with a UV coating that is effective in the 250-425nm range, enhancing its performance in UV applications. The lens's effective focal length (EFL) is 20mm, which is a common choice for many optical systems due to its versatility.
The lens's geometry is defined by its inner and outer radii, both of which are 0 in this case. The lens's diameter is 15mm, and it has a thickness of 2.68mm at the edge and 6mm at the center. The front and back surfaces of the lens are both coated with the same UV coating.
The lens's asphere is defined by its conic constant (k1) of -2.659391 and its aspheric coefficient (k2) of 0. The front surface of the lens has a curvature of 9.169mm, while the back surface is flat. The lens's back focal length (BFL) is 15.89mm.
This lens is a great choice for applications that require a high-performance UV lens with a wide angle of view and high light-gathering capability. It is available for purchase from Edmund Optics and is currently in stock.
