Semiconductor laser is also known as laser diode, which uses semiconductor materials as lasers operation materials. When comparing with other lasers, laser diode has incomparable performances, such as low driving voltage, high efficiency and safe incentive mode, so that it can be widely used for long-distance communication, digital signal storage and recovery, laser range holographic application, etc. Semiconductor laser has strict demands on working conditions and it is much affected by the ope...(more)
Semiconductor laser is also known as laser diode, which uses semiconductor materials as lasers operation materials. When comparing with other lasers, laser diode has incomparable performances, such as low driving voltage, high efficiency and safe incentive mode, so that it can be widely used for long-distance communication, digital signal storage and recovery, laser range holographic application, etc. Semiconductor laser has strict demands on working conditions and it is much affected by the ope...(more)
A glass sealed NTC thermistor is a high reliability and sensitive device, based on the technology of glass sealed diodes. It has high mechanical strength and also can prevent the performance drift caused by sensitive chips exposed to the atmosphere and the physical and chemical adsorption. While the glass is relatively high, it can be good for overcurrent protection and temperature compensation of NTC thermistors. There are two types of glass sealed NTC thermistors: axial glass sealed NTC thermi...(more)
LED electronic display screen is an electronic display, which is combined with computer technology, information processing technology, electronic technology, phonology, chromatics and other high and new technologies. The LED display screen can be divided into monochrome screen, double color screen and full color display. As the name implies, the monochrome screen is composed of a single color of LED (see figure 1). A pixel display which is in the red and green LED is called double color screen o...(more)
With the rapid development of the photoelectric technology, laser products have widely used in medical treatment, national deense and measurement and other areas. The change of environment temperature has made a directly effect on wavelength of laser controleller. Put the main elements temperature limited in the narrow range which can increase the precision of the system. The semiconductor laser controller consists of controlled constant surrrent source, temperature monitoring, pilot circuit and...(more)
Power Supply can convert another form power into electrical energy. The generators convert mechanical energy into electrical energy, dry cell convert chemical energy into electrical energy. The battery itself has no electricity. There are positive and negative charges on its two poles. They will provide voltage; electrical conductor has voltage in itself. When we add voltage, it will produce electricity. When the batterys two poles connect with conductor, it releases charge so that generate elec...(more)
LED is the abbreviation of Light Emitting Diode, which uses solid semiconductor chips as light materials. When adding forward voltage to its two ends, carriers in semiconductors will campsite and release extra energy, which can cause photon emission and generate visible light. The advantage of LED including: efficient and energy-saving, long service lifetime, health light, green environmental protection and so on. LED has been developed for several years, but in the field of lighting, it still b...(more)
The application of SMT resistor automation equipment advanced computer industrial equipment automatic control device medical equipment communication equipment high-tech multimedia electronic equipment The advantage of SMT resistor 1. small volume light-weight 2. accommodate reflow soldering and wave soldering 3. electric nature stable high reliability 4. low cost fitting and effective matching 5. high mechanical strength and high frequency. The method of labeling SMT resistor SMT resistors resis...(more)
