Generally, the protective lens needs to be replaced regularly to ensure the accuracy requirements in laser processing.
Laser protective lens, also known as optical window lens. It is used in YAG/optical fiber laser cutting machine, laser marking machine, laser welding machine and other laser processing equipment to prevent potential damage of high-temperature splashes in processing to focusing lens, electronic sensors and semiconductor components. At the same time, the protective lens will not weaken the laser output energy. Mechanical properties such as light transmittance, surface accuracy, thickness, parallelism, substrate material are important parameters of laser protective lenses. As the last optical part, it is placed in the laser work area to protect the high-value internal parts of the laser output end. Generally, the protective lens needs to be replaced regularly to ensure the accuracy requirements in laser processing. The specific replacement cycle depends on the daily laser processing time, splashing during processing and other on-site conditions.

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