Projection Technology of Laser Pointer Large Screen

The projector is an indispensable video output device in modern multimedia conference rooms and multimedia classrooms. Its role in the multimedia field is to magnify images for people to enjoy. It is unmatched by ordinary CRT and LCD TVs. It can convert traditional The video signal and the VGA signal of the computer are projected onto the screen for people to enjoy and use after passing through the interface. In today's modern office, which is pursuing high efficiency and fast-paced, projectors can be seen everywhere as new office equipment users. The projector can not only be used in temporary meetings, technical lectures, network centers, command and monitoring centers, but also can be connected to computers, workstations, etc., or connected to video recorders, televisions, DVD players, and physical exhibition stands. It can be said to be a kind of Large-screen imaging equipment with a wide range of applications. In medical teaching, laser pointers are commonly used teaching aids, and there are too many courses combining theory with practice in medical teaching. Often after the theoretical knowledge is taught, simple anatomical steps or other clinical trials will be demonstrated in the teaching class. At this time, Some test instruments are needed. Among them, the commonly used dissecting forceps, scalpels, scalpels, dissecting needles and other medical instruments are used to assist the test demonstration. This will cause the teachers to carry inconveniently during class, waste time, and reduce the efficiency of lectures. ; Moreover, the Laser pointer is easy to slip off, and it is difficult to find it after it rolls into a dark place.