How to adjust projector blur

First, the focus of the projector is not adjusted properly.

Solution: Manually rotate the projector lens to focus the projection. Tip: Press the projector menu key to open the projector menu first, and then turn the lens to focus the debugging picture to the best, until you can see the subtitles on the menu clearly. In addition, some projectors can also adjust the projection focal length through the remote control.

Second, the distance between the projector and the screen or the white wall is not within the projection range of the projector.

Solution: Refer to the factory parameter description of the projector to see what the minimum projection distance and the maximum projection distance are, and adjust the distance between the projector and the curtain according to this range value.

Third, there is too much dust on the lens or dust filter of the projector.

Solution: After blowing the lens clean with a soot blower, clean the lens and dust filter. Oil or dust inside and outside the lens will seriously damage the picture effect and blur the picture. Tip: If a small part of the picture is clear and other pictures are not clear and fuzzy, it can generally be judged that the lens is stained with oil stains or thick dust.

Extended data:

The projection quality of the projector is not only related to the brightness of the projection bulb, but also related to the influence of the projection environment. The light intensity of the projector working environment will directly affect the projection effect. Therefore, before using the projector, we must first arrange the working environment of the projector and make the projection bulb work in dim light environment as much as possible. Bright ambient light will make the brightness effect of the projection bulb worse, making it difficult for students to watch.

In order to make the projector get better projection effect, we might as well install dark opaque curtains in the room to block the outdoor light, and use materials that are not suitable for reflection on the walls of the room. These details will enable the projector to produce a better projection effect with the same brightness of the projection bulbs.