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随着发光科学的发展,显示器件的种类日益繁多。但是,当应用到野外工作的仪器上显示字符时,大多数器件的亮度在强烈日光下相形见绌。近年来LED半导体数码管亮度有很大提高,并制成光电组合件,但用在电池电源工作的野外小型化仪器中,耗电仍是一个很大的问题。荧光数码管兼有高亮度和低功耗两方面的优点,正好适用于这种工作环境。缺点是体积较大和抗震性能较差。
With the development of luminescent science, there are more and more kinds of display devices. However, the brightness of most devices is dwarfed by intense daylight when characters are displayed on instruments that are used in field work. LED semiconductor LED brightness in recent years has greatly improved, and made of optoelectronic components, but used in battery power field miniaturization equipment, power consumption is still a big problem. Fluorescent digital tube both the advantages of high brightness and low power consumption, just for this work environment. The disadvantage is the larger size and less seismic performance.