LP11-18-75 18 mm Dia. N-BK7 Plano-Concave Lens; EFL=-75mm Uncoated
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- CeNing Optics
Properties
- Shape
- Circular
- Diameter
- 18 mm
- EFL
- -75 mm
- R1
- -38.9 mm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.518720636186463
- λ
- 546.1 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
LP11-18-75 18 mm Dia. N-BK7 Plano-Concave Lens; EFL=-75mm Uncoated
This is a Plano-Concave lens, type of spherical lens, with a circular base shape and a diameter of 18 mm. The lens has a center thickness of 2 mm and an effective focal length (EFL) of -75 mm, making it a diverging lens. The inner and outer radii are both 0, indicating a concave shape.
The lens is made of N-BK7, a high-quality borosilicate glass manufactured by Schott. This material is known for its excellent optical properties, making it a popular choice for various applications, including imaging systems, beam shaping, and laser applications.
The lens is designed to operate at a wavelength of 546.1 nm. It does not have any coating, which means it is uncoated. While uncoated lenses can be used in some applications, they may be more susceptible to surface reflections and could benefit from anti-reflective coatings to improve their performance.
The vendor for this lens is CeNing Optics, a reputable supplier of optical components. The lens is currently in stock, according to the vendor's website. For more information about this lens, including pricing and availability, please refer to the vendor's website.
