G314335400 12.7 mm Dia. N-BK7 Plano-Concave Lens; EFL=-500mm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- Qioptiq Photonics
Properties
- Shape
- Circular
- Diameter
- 12.7 mm
- EFL
- -500 mm
- R1
- -260.39 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
G314335400 12.7 mm Dia. N-BK7 Plano-Concave Lens; EFL=-500mm
This is a Plano-Concave lens with a diameter of 12.7 mm, sourced from Qioptiq Photonics. The lens is made of N-BK7, a popular glass type in the optical industry, known for its excellent optical properties and high damage threshold. The lens has a center thickness of 1.5 mm and an effective focal length (EFL) of -500mm, making it suitable for applications that require a long focal length.
The lens's geometry includes a radius of curvature (R1) of -260.39 mm, indicating a concave shape. The inner and outer radii are both zero, suggesting that the lens is uniformly curved from the center to the edge.
The lens is coated with Qio Silver RAGV 45 on both the front and back surfaces, which enhances its reflectivity and durability. This coating is particularly useful in applications where high reflectivity and resistance to environmental conditions are required.
The lens is designed to operate at a wavelength of 588 nm, making it suitable for use in a wide range of applications, including but not limited to, spectroscopy, metrology, and beam shaping.