Concave convex laser focusing lenses are mainly used for focusing light and are commonly used in high-power laser fields. Some optical lenses are usually spherical optical elements made of glass or plastic, with flat and concave lenses used for external divergence, beam expansion, projection, and expansion of the focal length of the optical system; A flat convex lens for focusing a beam of light or imaging; The positive focal length is convex before and after, the biconvex lens focusing parallel beam, as well as the double glued Achromatic lens, meniscus lens and other optical lenses. While these optical elements are being processed and produced, they will go through many processing procedures. Today we will focus on what should be paid attention to when cleaning concave convex laser focusing lenses?
1. The lens should be gently wiped to prevent damage to the surface coating;
2. The wiping process should be handled with care to prevent dropping the high-power laser protective lens. Compared with the ordinary protective lens with anti reflection film, the protective lens used for fiber laser increases the laser endurance, anti laser film, combined laser focusing lens, high Anti-reflective coating, high temperature resistant film, and high damage threshold film.
The protective lens mainly serves as a focusing lens that does not change the beam characteristics, allowing the beam to pass through with high stability and unobstructed, allowing light to enter from one environment to another. For example, from air to water, or from vacuum to air, or from one environment to another, such as different temperatures, pressures, chemical composition, or cleanliness.
Both sides of the protective lens are precisely polished, yes λ / 10 surface accuracy and 5 second parallelism. Can be used for ultraviolet, visible, and near-infrared. Our company fully considers the material's transmittance, uniformity, subsurface defects, surface accuracy, and parallelism when manufacturing protective lenses; During the grinding process, the laser cutting machine focuses on the mirror, achieving high transmittance, wavelet surface difference, and low scattering. The main function of protective lenses is to not change the beam characteristics, allowing the beam to pass through in a highly stable and unobstructed manner, allowing light to enter from one environment to another.