67-628 12mm Dia. x 72mm FL; NIR II Coated; Double-Convex Lens NIR II 750-1550nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 12 mm
- EFL
- 72 mm
- BFL
- 71.07 mm
- R1
- 73.97 mm
- R2
- -73.97 mm
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
67-628 12mm Dia. x 72mm FL; NIR II Coated; Double-Convex Lens NIR II 750-1550nm
This 12mm diameter by 72mm focal length double-convex lens, sourced from Edmund Optics, is specifically designed for use in the near-infrared (NIR) spectrum, covering the wavelength range of 750-1550nm. The lens is made from N-BK7 Schott glass, a popular choice for its high transmission and low auto-fluorescence in the NIR region.
The lens features a standard curve coating on both the front and back surfaces, identified as 'edm nir-ii std curve'. This coating is designed to enhance the lens' performance in the NIR region, improving transmission and reducing surface reflections.
The geometry of the lens includes a center thickness of 2.8mm and an edge thickness of 2.31mm. The front and back radii of curvature are 73.97mm and -73.97mm respectively, resulting in a back focal length of 71.07mm. The lens is spherical in shape, a common design for its ease of manufacturing and versatility.
According to the vendor's information, this lens is currently in stock, making it readily available for your optical system needs. For more detailed information, including technical drawings and performance data, please refer to the vendor's website using the provided weblink.