LED bulbs are also a spherical light emitting semiconductor, which have the same characteristics as ordinary light-emitting semiconductors, which are composed of two PN nodes. The current can be converted to light energy through the semiconductor. Can send out visible light, infrared, ultraviolet. However, the light emitted from LED is not fixed, so we use glue glue to guide LED bulbs to give out the effect of lighting we want, that is to say, LED bulbs will not give out all kinds of light at once. The large precision dispensing machine only completes the dispensing equipment used in the process of dispensing, so why do we use the large precision dispenser? Of course, this is because the visual dispenser has a huge advantage in semiconductor dispensing and traditional semi automatic dispensing machine, CCD image vision system plays a role in the dispensing in time, and can be arranged on dispenser machine CCD camera image to display it on a page, the operating staff in visual LED the dispensing machine can achieve more effective and more convenient for precision dispensing.