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What does the projector focus mean and what is the use of the focus function?

  • 2022-04-22
What does projector focus mean:
Focusing is to find the focal length that makes the projector picture clearer. In short, the projector makes the picture clearer through focusing. At present, the projector has manual focusing and automatic focusing functions.

Manual focusing: that is, it is necessary to manually adjust the definition of the projection picture. Generally, it is necessary to press the up and down keys of the remote control to adjust the focusing until the picture is clear. This function adjusts the picture definition accurately, but the operation is slightly cumbersome.

Auto focus: as the name suggests, there is no need to manually adjust the definition of the picture. When the projector moves or other conditions cause the picture to be unclear, turn on the auto focus function of the projector and the picture will automatically adjust the definition until the picture is clear. The operation is convenient and intelligent.


When it comes to auto focus, I have to say that the recent intelligent micro projection is relatively popular for global insensitive focus. The realization of global insensitive focus benefits from TOF + CMOS camera algorithm. This function focuses on the word "insensitivity". The focusing pattern will appear in the middle of the screen in ordinary automatic focusing, while the focusing icon will not appear in the global insensitive focusing during the focusing function, so it will not affect the user's viewing experience and unknowingly adjust the picture to the clearest.



In addition, for non intelligent projectors, the way of focusing is to toggle the focusing ring. The focusing ring is generally located above the lens. The principle is to adjust the lens inside the projector lens by pulling the focusing ring to change the focal length of the lens to the projection wall, so as to make the picture clear.

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