L-PCC042 20 mm Dia. Plano-Concave Lens; EFL=-50mm Uncoated
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- Ross Optical
Properties
- Shape
- Circular
- Diameter
- 20 mm
- EFL
- -50 mm
- R1
- -25.84 mm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5167984379050088
- λ
- 587.6 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
L-PCC042 20 mm Dia. Plano-Concave Lens; EFL=-50mm Uncoated
The L-PCC042 is a 20 mm diameter Plano-Concave lens, part of the extensive catalog offered by Ross Optical. This lens is designed with a negative focal length (EFL) of -50mm, making it suitable for applications that require light convergence or image reduction.
The lens is spherical in shape, with a base shape of circular. The geometry of the lens includes a center thickness of 2mm, an inner radius of 0mm, and an outer radius of 0mm. The curvature of the lens is defined by a radius of -25.84mm, which is the radius of the spherical surface that forms the concave shape of the lens.
The lens is made from N-BK7 Schott glass, a common material in optical applications due to its excellent optical properties and high Abbe number. The wavelength for this lens is 587.6nm, which is in the visible light spectrum.
Notably, this lens is uncoated. Coatings are often applied to lenses to enhance their optical properties, such as reducing reflection, increasing transmission, or protecting the lens surface. However, in this case, the lens is left uncoated, which may be desirable for certain applications where the natural properties of the glass are preferred.
The lens is currently in stock and more information can be found on the Ross Optical website.
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