What is the Plano Convex Lens?

1. What is the plano convex lens?


The plano convex lens is a positive lens in the optical system, whose main functions are beam expansion, imaging, beam collimation, focus collimation, the collimation of the point light source and other purposes.


2. The characteristics of plano convex lenses


The plano convex lenses have a convex surface on one side and a flat surface with a positive focal length. The plano convex lenses are often used in related applications such as beam reduction, focal length reduction, or image magnification.


In order to reduce spherical aberration, when the plano convex lens is used to focus the collimated beam, the beam should be incident on the curved surface of the lens; when the plano convex lens is used for the collimation of the point light source, the beam should be incident on the plane.


The plano convex lenses have a positive focal length and are often used in applications such as imaging or beam collimation. Coated lenses are also widely used in visible light and near-infrared applications. Conventional lens sizes are: 12.7mm, 25.4mm, 50.8mm.


3. Parameters of plano convex lens


Optional materials: K9, N-BK7, JGS series UV fused silica;

Working range: 400nm to 700nm (other wave bands can be customized);

Design wavelength: 546.1nm (n=1.519);

Focal length tolerance: ±2%;

Contour tolerance: +0.0/-0.02mm;

Thickness tolerance: ±0.02mm;

Curved aperture: 3;

Flatness of plane (aperture): 1;

Surface local aperture: 0.5;

Eccentricity: <3 arcmin;

Surface type: λ/4@632.8nm;

Surface finish: National standard level 3, US military standard 60-40;

Clear aperture:>90%;

Safety chamfering: <0.2×45°.

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