Ceramic metal halide lamp The ceramic metal halide lamp […]
Ceramic metal halide lamp
The ceramic metal halide lamp is a metal halide lamp using translucent ceramics as an electric orphan tube. It is a relatively new high-quality illumination source that combines the advantages of both quartz ceramics and sodium lamps.
Advantages and disadvantages of ceramic metal halide lamps:
Since the ceramic tube can withstand higher temperatures and the chemical properties are very stable, the ceramic metal halide lamp has higher luminous efficiency, long life, more stable light color during the lifetime, small size, excellent color rendering, and Ra>80. advantage. And the ceramic tube can filter out most of the ultraviolet radiation, reducing the fading caused by the illumination. In view of these advantages, ceramic metal halide lamps are becoming an important source of light in the design of light effects.
Also known as light-emitting diodes, referred to as LEDs, is a new type of light source that converts electrical energy directly into visible light through the principle of electroluminescence through a semiconductor diode. Electroluminescence refers to the phenomenon of luminescence due to the interaction of an appropriate substance with an electric field.
Advantages and disadvantages of LED light-emitting diodes:
As a new type of semiconductor light source, the light-emitting diode has the following advantages compared with the conventional light source: long life, light-emitting time of up to 100,000 hours; short start-up time, response time of only several tens of nanoseconds; firm structure, as a solid whole The solid structure can withstand strong oscillation and impact; high luminous efficiency and low energy consumption is an energy-saving light source; the illuminant is close to the point source, and the radiation model of the light source is simple, which is beneficial to the design of the luminaire; the directionality of the illuminating is very strong, A reflector is needed to control the direction of illumination of the light, which can be made into a thin luminaire for applications where there is not much installation space. It is generally believed that the light-emitting diode is the fourth generation light source after incandescent lamps, fluorescent lamps, and high-pressure discharge lamps. With the advancement of new materials and manufacturing processes, the performance of LEDs is increasing and the range of applications is becoming wider and wider.