The light illumination field indicator should be installed in the x ray collimator with LED light according to the required distance from the focus to the installation plane, so that the illumination area indicated by the indicator can be accurate.
The x ray collimator with LED light is equipped with a button switch to control the indicator lamp. Now most of the x ray collimator with LED light use the self-closing lamp device, which will automatically close the lamp when it reaches the predetermined time after opening. In this way, the operation process can be shortened, forgetting can be avoided and the lamp life can be prolonged. There are two kinds of common automatic shut-off devices: mechanical and electronic.
Mechanical automatic light-closing device is divided into knob type and button type. The duration of the light is determined by the degree of rotation of the knob or press of the button. Normally, the light can last up to one minute. When the electronic automatic shut-off device uses the electronic timer, the time x ray collimator with LED light is adjusted, and the button is activated to automatically turn off the light at a predetermined time.