G313373525 12.7 mm Dia. N-BK7 Double-Concave Lens; EFL=-20mm 725-1050nm
- 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
G313373525 12.7 mm Dia. N-BK7 Double-Concave Lens; EFL=-20mm 725-1050nm
This is a G313373525 model lens, a high-quality optical component sourced from Qioptiq Photonics. The lens is a symmetric concave-concave design, featuring a base shape of a circle, and is unmounted. It has a diameter of 12.7 mm and a center thickness of 1.5 mm, making it a compact and convenient option for various applications.
The lens has an effective focal length (EFL) of -20 mm, indicating its double-concave nature. This characteristic is further emphasized by its first and second radii of curvature, R1 and R2, which are -20.983 mm and 20.983 mm respectively. The lens's inner and outer radii are both zero, suggesting a uniform curvature throughout.
The lens is made of N-BK7, a type of borosilicate glass known for its excellent optical properties. This material is identified by the Material ID [n-bk7 schott] in the item data. The lens is designed to operate within the wavelength range of 588 nm.
The lens comes with front and back coatings of qio bbar arb2nirnbk7. These coatings are specifically designed to enhance the lens's performance within its operational wavelength range. The lens's shape is spherical, a common and versatile design in optical systems.