The electrical control system of a programmable LED ring lamp and it´s application on vision measuring field

In this paper, The electrical control system of a programmable ring lamp and it´s application on vision measuring machine are introduced. The lamp is separated into five rings and eight sections. Every rings make the light reflection different because the LED eject light with different angle. Lamp control types are designed according to the controlling requirement. After the control styles have been made clear, a lamp control circuit were designed. We developed a program to control the lamp according to the hardware environment. The lamp control program is integrated into the auto-inspection parts in the vision measuring software. A lot of tests were done on the vision machine which is equipped with it. The results show that the multi-angle lighting and combination lighting styles make the measurement more accurate.