G063892322 25.4 mm Dia. N-BK7 Mounted Double-Concave Lens; EFL=-50mm 450-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- Qioptiq Photonics
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- -50 mm
- R1
- -52.33 mm
- R2
- 52.33 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
G063892322 25.4 mm Dia. N-BK7 Mounted Double-Concave Lens; EFL=-50mm 450-700nm
This is a G063892322 model double-concave lens, boasting a 25.4 mm diameter and a center thickness of 1.5 mm. The lens is made from N-BK7, a popular optical glass from Schott, known for its excellent optical properties and high transmittance in the visible spectrum.
The lens features a negative focal length (EFL) of -50mm, making it suitable for use in various applications that require image inversion or reduction, such as telescopic systems or camera objectives. The lens is designed to work optimally with light in the 450-700nm range, which covers the broad spectrum of visible light.
The lens's geometry is characterized by its concave-concave shape, with radii of curvature of -52.33mm for the first surface and 52.33mm for the second. This shape allows for effective light bending and focusing. The lens is mounted, ensuring ease of integration into optical systems.
The lens is coated with Qio Bbar Arb2visnbk7 on both the front and back surfaces. This coating is designed to enhance the lens's durability and optical performance, reducing reflection and increasing transmission in the visible spectrum.