ã€Maintenance】
1, dust and scratch
In the use of home smart projectors, dust protection is very important, and there must be smoke in the eyes because dust particles are more easily absorbed in the optical system. At the same time, care must be taken to prevent the lens from being scratched when the lens is wiped cleanly, as one carelessness will leave fingerprints, water marks, grease, etc. If the projection is a dirty lens, it will appear as if the light spilled out and the borders of the picture are very blurred.
2, avoid strong collision and extrusion
Strong vibration may cause the displacement of the LCD, affecting the convergence of the three LCDs during the screening, and the phenomenon of non-coincidence of colors. The lenses and mirrors in the optical system may also be deformed or damaged, affecting the image projection effect, and the zoom The lens will damage the track under strong impact, causing the lens to get stuck, and in severe cases it will cause the lens to break and cannot be used.
3, hot plug power plug
After the projector is turned off, it is best to allow it to cool for a while because the sealed design of the projector is difficult to dissipate heat automatically. After unplugging the power supply, the cooling fan will immediately stop working. This will cause the projector lamp to work for a long time. A large amount of heat will accumulate inside the projector, seriously affecting the electrical properties of the bulb and internal components, and largely affecting the life of the projector bulb.
4, the switching frequency can not be too high
There are dangers of "breakdown" in the switching of many electronic components. This is why we should avoid frequent switching when we use computers. The same projector bulb is even more “preciousâ€, especially for projectors that support fast booting, instantaneously using a large current to achieve a short preheating moment, which increases the risk factor. Therefore, we do not frequently turn on or off the projector when using the projector in daily life to prevent the projector lamp and circuit from receiving frequent current or voltage shocks.
ã€pay attention】
Home smart projector has high heat source, high value, high cost of late use, fear of dust, strict operating characteristics, so we must learn to maintain in daily use, so that you can reduce the replacement of the lamp frequency, improve the LCD panel, polarization The use of time-consuming components such as boards prolongs the life of the projector.
Smart TV/box information can focus on smart TV information network sofa butler (http://), China's influential TV box and smart TV website, providing information, communication, TV boxes, smart TVs, smart TV software, etc. Answering questions.
Optical fiber fusion splicer is mainly used for the construction and maintenance of optical cable in optical communication, so it is also called optical cable fusion splicer. The general working principle is to use a high-voltage arc to melt the sections of the two optical fibers while using a high-precision motion mechanism to gently advance the two optical fibers into one, so as to realize the coupling of the optical fiber mode fields.
Optical fiber fusion splicer is mainly used in:
Construction, maintenance and emergency repairs of optical cable lines of telecommunications operators, communication engineering companies, and public institutions;
Experiment, production and testing of optical devices;
research;
Teaching and research related to optical fiber communication in major colleges and universities.
Ordinary optical fiber fusion splicers generally refer to single-core optical fiber fusion splicers. In addition, there are ribbon optical fiber fusion splicers specially used to splice ribbon optical fibers, sheath fusion splicers for splicing sheathed optical cables and jumpers, and splice protection Polarization maintaining fiber fusion splicer for polarized fiber, etc.
According to different alignment methods, fiber fusion splicers can be divided into two categories: cladding-aligned and core-aligned. The cladding alignment type is mainly suitable for occasions such as low-requirement fiber to the home, so the price is relatively low; the core alignment type fiber fusion splicer is equipped with a precision six-motor core alignment mechanism, a specially designed optical lens and software algorithms, which can Accurately identify the fiber type and automatically select the matching splicing mode to ensure the splicing quality. The technical content is high, so the price will be relatively high.
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