22-768 12.5mm Dia. Germanium Infrared Aspheric Lens; EFL=12.5mm; NA=0.5 Uncoated
- Type
- Lens
- Subtype
- Aspheric Lens
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 12.5 mm
- EFL
- 12.5 mm
- BFL
- 11.75 mm
- R1
- 37.58 mm
- R2
Material
- Name
- Germanium
- Dispersion Equation
- Sellmeier
- n (λ)
- 4.006232253035364
- λ
- 8000 nm
- B1
- 0.4886331
- C1
- 1.393959 μm2
- B2
- 14.5142535
- C2
- 0.1626427 μm2
- B3
- 0.0091224
- C3
- 752.19 μm2
22-768 12.5mm Dia. Germanium Infrared Aspheric Lens; EFL=12.5mm; NA=0.5 Uncoated
This is a high-quality 22-768 12.5mm Dia. Germanium Infrared Aspheric Lens, sourced from the renowned optical vendor, Edmund Optics. The lens is characterized by its uncoated surface and features an EFL (Effective Focal Length) of 12.5mm, making it suitable for a wide range of optical applications.
The lens is made of Germanium burnett, a material known for its excellent transmission properties in the infrared spectrum, particularly at 8000nm. This makes the lens an ideal choice for infrared-based systems and applications.
The lens geometry is carefully designed with an inner radius of 0mm, an outer radius of 0mm, and a diameter of 12.5mm. It has a thickness of 2.5mm at the edge and 3mm at the center. The EFL of the lens is 12.5mm, and it has a back focal length (BFL) of 11.75mm.
The lens features an aspheric shape, which is characterized by its conic constant (k1) of -0.9 and its aspheric coefficient (k2) of 0. The na (Numerical Aperture) of the lens is 0.5. The lens does not have any coating, as indicated by the empty 'coating' parameter in the item data.
The lens is currently in stock and available for purchase. For more information, please refer to the vendor's website using the provided weblink.
