G313214329 22.4 mm Dia. N-BK7 Double-Concave Lens; EFL=-40mm 1064nm
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- Qioptiq Photonics
Properties
- Shape
- Circular
- Diameter
- 22.4 mm
- EFL
- -40 mm
- R1
- -41.87 mm
- R2
- 41.87 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
G313214329 22.4 mm Dia. N-BK7 Double-Concave Lens; EFL=-40mm 1064nm
This is a G313214329 double-concave lens, featuring a 22.4 mm diameter and a center thickness of 1.5 mm. The lens is made of N-BK7, a popular optical glass from Schott, known for its excellent optical properties and wide transparency range.
The lens has a focal length of -40mm, indicating its double-concave nature, which means it diverges light rays. This type of lens is often used in applications where beam expansion or divergence is required.
The lens's surface radii are -41.867 mm for the first surface and 41.867 mm for the second, creating a symmetrical concave-concave geometry. The lens has no inner or outer radius, indicating it is a simple lens without any additional shaping.
The lens is coated with Qio HP Nbar ARHS-YAG on both the front and back surfaces. This coating is designed to reduce reflection and increase transmission at the 1064nm wavelength, making it suitable for use in Nd:YAG laser systems.
This lens is sourced from Qioptiq Photonics, a leading vendor in the field of precision optics. The web link provided leads to the product page on their official website, where you can find more information and purchase this lens. The link's status indicates that the lens is in stock, ensuring quick delivery.