【Treatment method of rear projection screen surface contamination】Engineering projection screen application skills

1. Use an air gun or vacuum cleaner to remove stains on the surface. If you do not have appropriate tools, use a clean and soft silk cloth to gently wipe it;

　2. If the screen is stained with oil that is difficult to wipe, you can use a silk cloth dipped in distilled water and a glass cleaner containing Amonia (ammonia) to clean it carefully. The amount of the cleaner must be strictly controlled to prevent the cleaner from being stuck. The light path of the rear projection screen forms a large area of u200bu200bpenetration.

　3. When wiping the lenticular lens (Lenticular Lens) on the front of the rear projection screen, the lenticular lens should be wiped up and down according to its lines, as shown in the figure below:

　4. When inserting the Fresnel lens (Fresnel Lens) on the back of the rear projection screen, follow its lines and insert and wipe in the direction of concentric circles, as shown in the figure below: