67-265 25mm Dia. UVFS Aspheric Lens; EFL=20mm; NA=0.63 Uncoated
- Type
- Lens
- Subtype
- Aspheric Lens
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25 mm
- EFL
- 20 mm
- BFL
- 10.4 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
67-265 25mm Dia. UVFS Aspheric Lens; EFL=20mm; NA=0.63 Uncoated
The 67-265 25mm Dia. UVFS Aspheric Lens is a high-quality optical component sourced from Edmund Optics. This lens, with a catalog number of 67-265, is currently in stock and available for purchase through the provided weblink.
The lens is made of UV Fused Silica (HPFS7980 Corning), a material known for its excellent transparency across a wide spectrum, including the ultraviolet range. This makes the lens suitable for applications that require high transmission in the UV region.
The lens features a base shape of a circle, with a diameter of 25mm. It has a thickness of 2.27mm at the edge and 14mm at the center. The effective focal length (EFL) of this lens is 20mm, and it has a numerical aperture (NA) of 0.63, indicating a wide acceptance angle and high light-gathering capability.
The lens's geometry includes an inner radius of 0mm and an outer radius of 0mm. The front surface of the lens has a radius of curvature of 9.17mm and a conic constant of -1.102626. The back focal length (BFL) is 10.4mm.
Notably, this lens is uncoated. While coatings can enhance the performance of lenses by reducing reflections and increasing transmission, an uncoated lens can be advantageous in certain applications where specific reflectance properties are required.
