Red eyepiece (edge protection)

Maintenance method of protective glasses:
1. Placement method
       If the glasses are placed temporarily, please put the convex side of the glasses upward. If the glasses are placed with the convex side downward, the lenses will be worn.
2. Methods of lens cleaning
       Use a clean special mirror wiping cloth. Be sure to hold the frame edge wire on one side of the wiping mirror with your hand and gently wipe the lens. Avoid damage to the frame or lens caused by excessive force. When the lens is stained with dust or dirty things, it is easy to wear the lens by dry rubbing. It is recommended to wash the lens with clean water, and then use a paper towel to absorb the water, and then use a special eyewear cloth to dry it. When the lens is very dirty, it is recommended to clean it with low concentration neutral lotion, and then rinse and dry it with clean water. After using the glasses every day, please wash them with clean water in time, and wipe the drops with a special wiping cloth, so as to prolong the service life of the glasses.
3. Please do not use your own polished lenses
       It is recommended not to use the lens with scratches, stains, cracks and other conditions, otherwise it will lead to poor vision due to light dispersion.
4. Please don't look directly at the sun
       Even if the lens has color difference, do not look directly at the sun or strong light, otherwise it will hurt the eyes.
5. Please do not keep it in high temperature (above 60 ℃) for a long time
       High temperature is easy to cause lens deformation or surface film is easy to crack, please do not put it in the front window of the cab and other places with direct sunlight or high temperature.