G314317331 22.4 mm Dia. N-BK7 Plano-Concave Lens; EFL=-150mm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- Qioptiq Photonics
Properties
- Shape
- Circular
- Diameter
- 22.4 mm
- EFL
- -150 mm
- R1
- -78.3 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
G314317331 22.4 mm Dia. N-BK7 Plano-Concave Lens; EFL=-150mm
This is a Plano-Concave lens, type N-BK7, with a diameter of 22.4 mm and a center thickness of 1.5 mm. The effective focal length (EFL) of this lens is -150mm, making it a negative or diverging lens. The radius of curvature (R1) for this lens is -78.298mm, indicating a concave shape. The inner and outer radii are both 0, suggesting that this lens has a uniform curvature.
This lens is made from N-BK7, a type of borosilicate glass commonly used in optical applications due to its low coefficient of thermal expansion and excellent homogeneity. The lens is coated with Qio AL RALVIS AOI 45 on both the front and back surfaces, which is designed to reduce reflection and improve transmission.
The lens is designed to operate at a wavelength of 588nm. The item data does not provide information about the lens's tolerance, clear aperture, or other specifications that might be relevant for certain applications. However, the vendor, Qioptiq Photonics, is a reputable supplier of precision optics, suggesting that this lens meets high standards of quality and performance.