Insight

Before the projector appeared, we mainly used slide projectors. In fact, current projectors are also special slide projectors. Some scholars have shown that the development of projectors, animation, and movies are inseparable. The earliest use of light and shadow technology...

Different subjects Home projector: a projector used at home. Commercial projectors: projectors optimized for business and office meeting environments and needs. the characteristics are different Home projector: Home projector, including mini home theater projector, can replace LCD, can play video online,...

Install USB scanner The installation of this kind of scanner is very simple, users with almost no experience can quickly install the USB scanner in a short time. Regardless of the model or brand of the scanner, the specific installation...

When we buy scanners, we often see this phenomenon. Many technical parameters, such as scanners with the same scanning format, optical resolution, and color bits, have very different prices, and some even tens of times. So, what are the differences...

The density range is a very important performance parameter for the scanner. The density range is also called pixel depth, which represents the range of bright light and dark tone that the scanner can distinguish. Generally, the density range of...

The so-called home projector, also known as a mini projector, TRT-3M portable projector, refers to a projector used at home, its roles are mainly used for home film, office, entertainment. It can replace the LCD, which can play videos online,...

CCD CCD is the core component of the scanner. CCD is called a photoelectric coupling device. It can output different currents according to the intensity of the irradiated light to complete the photoelectric conversion process. The scanner generally uses a...