4000W Protective Lens

Laser protective lenses are essential optical components primarily designed to safeguard human eyes and critical components within laser equipment from laser radiation and other potential hazards. Also known as laser window panes, optical window panes, or laser dust-proof lenses, they serve as protective elements specifically engineered for use in laser devices. Their main function is to block or prevent high-temperature splashes, dust, and other impurities from damaging key components such as focusing lenses, electronic sensors, and semiconductor elements within the laser equipment.

Laser protective lenses find widespread application in various laser processing equipment, including laser cutting machines, laser welding machines, laser marking machines, and laser engraving machines. They also play a crucial protective role in fields such as laser medicine and laser experiments.

Transmittance: Transmittance is one of the key performance indicators of laser protective lenses, determining their ability to transmit laser light. Lenses with high transmittance can reduce laser loss during transmission, thereby enhancing the processing efficiency of laser equipment.

Surface Accuracy: Surface accuracy refers to the flatness of the lens surface, which directly impacts the imaging quality and laser focusing effect of the lens. Therefore, laser protective lenses must meet high standards of surface accuracy.

Thickness: The thickness of the lens is also a crucial factor affecting its performance. An appropriate thickness ensures that the lens has sufficient strength and stability, while avoiding excessive thickness that could lead to laser loss and increased costs.

Parallelism: Parallelism refers to the degree of parallelism between the lens surface and the direction of light propagation. Lenses with high parallelism can ensure that the laser maintains a stable direction during transmission, improving processing accuracy.

Substrate Material: The substrate material determines the physical and chemical stability of the lens. Common substrate materials include glass, quartz, and crystals, each with their own advantages and disadvantages, requiring selection based on specific application scenarios.