G313373000 12.7 mm Dia. N-BK7 Double-Concave Lens; EFL=-20mm Uncoated
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- Qioptiq Photonics
Properties
- Shape
- Circular
- Diameter
- 12.7 mm
- EFL
- -20 mm
- R1
- -20.98 mm
- R2
- 20.98 mm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5167817367777034
- λ
- 588 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
G313373000 12.7 mm Dia. N-BK7 Double-Concave Lens; EFL=-20mm Uncoated
The G313373000 is a 12.7 mm diameter N-BK7 double-concave lens with a focal length of -20mm, making it an ideal choice for applications that require a strong converging lens. This lens is sourced from Qioptiq Photonics, a reputable vendor known for their high-quality optical components.
The lens is made from N-BK7, a popular glass type in the optical industry due to its excellent optical properties and versatility. It has a refractive index of 1.5168 at 588nm, making it suitable for a wide range of applications. The lens's geometry features a center thickness of 1.5mm, and its concave-concave shape is defined by radii of -20.983mm and 20.983mm on each face, respectively.
Notably, this lens is uncoated, which means it does not have any anti-reflective coatings. While this may result in higher reflective losses, it also means the lens is more cost-effective and suitable for applications where such coatings are not necessary.
The lens's specifications are currently in stock and can be found on the Qioptiq Photonics website. For more information, please refer to the provided weblink.