Can the projector lens be wiped?

The projector lens can be wiped.

There is a coating on the surface of the projector lens, which is used to make the light transmittance better. It needs to be wiped with a special lens cloth. Do not wipe it with water, otherwise the coating on the lens will be wiped off or the lens will be scratched. .

As long as the lens is not misaligned due to wiping too hard, the entire picture will not be blurry. It may be that the lens rotates during wiping. You only need to adjust the focus ring on the lens until the picture is clear. .

Extended information

When the projector is in use, it is often necessary to install a hanging box and hang it in the sky. This environment is prone to accumulation of a large amount of dust, which can easily cause the projector to fail when it is turned on. Overheating protection occurs for half an hour and cannot be turned on. In hot and humid seasons or areas, the humidity will cause dust accumulated on the outer casing of the projection lamp to form a cement-like film, causing the projection lamp to explode due to excessive local temperature accumulation, thermal expansion and contraction during operation.

So ask professionals to clean the dust regularly and extend the service life. Based on the above reasons, the fundamental to extend the life of the light bulb is to first shut down safely and fully dissipate heat. Secondly, keep the use environment clean and tidy. It is also suitable to use it in places that are too humid. Will shorten the life of the lamp. However, in order to improve the utilization of light sources, many projector products are equipped with good heat dissipation designs and other means to extend the life of the lamp.

Baidu Encyclopedia-Projector (Projector)