22-08-2012, 04:04 PM
IR Object Detection
IR Object.ppt (Size: 1,003.5 KB / Downloads: 144)
Infrared (IR) light leaving an LED reflects off an object. The reflected light travels
back to an IR receiver. The IR receiver “detects” the presence of the object. The object does not need to move to be detected.
Install an LED Shield
It is important to install the LED in an enclosure to properly direct the IR light. Your kit includes the black pieces shown. Insert the legs of the LED through the holes in the longer black cylinder, and then install the smaller top piece over the exposed end of the LED.
If you don’t have a shield, a piece of paper can be rolled up and taped around the LED.
IR Object.ppt (Size: 1,003.5 KB / Downloads: 144)
Infrared (IR) light leaving an LED reflects off an object. The reflected light travels
back to an IR receiver. The IR receiver “detects” the presence of the object. The object does not need to move to be detected.
Install an LED Shield
It is important to install the LED in an enclosure to properly direct the IR light. Your kit includes the black pieces shown. Insert the legs of the LED through the holes in the longer black cylinder, and then install the smaller top piece over the exposed end of the LED.
If you don’t have a shield, a piece of paper can be rolled up and taped around the LED.