In recent years, the enhancement of public awareness of energy conservation along with the rapid development of LED technology, to some extent, promoted the initial formation of LED lighting market. This booming trend is still going forward at an amazing speed. However, LED lamps in the market still have wicked problems: the glare and spot problem and single direction problem. These problems are more obvious among LED fluorescent tubes.
Many LED Panel Light manufacturers put forward various solutions to solve the glare problem of LED lighting applications: using brushed PC covers, frosted covers, using special phosphor materials, etc.. But neither of them is satisfied. In spite that brushed PC covers could remove glare effects effectively, they exacerbate the spot phenomenon, making things even worse. Working long time under such LED fluorescent tubes will tried your eyes, even worse cause astigmatism. Frosted covers and special phosphor materials will reduce the luminous efficiency dramatically, which is inadvisable in large lighting projects.
LED lighting market is full of potentials and opportunities. In the first stage (initial formation stage), insiders concerned more about luminous efficiency, luminous flux and lifetime of LED lighting fixtures, and of course the comfort.
However, after applying optical diaphragm, single light source became brighter but not dazzling. This type of diaphragm is typically used on LED fluorescent tubes, making the light distribution more evenly and the beam angle wider. The working principle is converting uneven spot light sources into evenly distributed surface light source, and meanwhile solving the glare problem, spot problem and beam angle range problem. The transmittance rate of this type of diaphragm is more than 90%, having very limited impacts on luminance.
In addition, using optical diaphragm can widen the irradiation angle as well as eliminate spot phenomenon. LED has very strong directional properties, with beam angle around 120 degrees. Theoretically, this range will cause blind spots. Using assisted diaphragm can enlarge the beam angle range to 180 degrees, eliminating blind spot phenomenon effectively. Within a certain space, LED fluorescent tubes with diaphragm have much better lighting effects than ordinary tubes, since they have no blind spots and unevenly distributed light. The larger the area, the better the lighting effect.