ANALYSIS OF THE INFRARED LED CHIP APPLICATIONS(2)

Infrared light emitting diode  to control the controlled device when Infrared light emitting diode emitting infrared, controlled device has a electric conversion elements of corresponding infrared,
such as an infrared receiver diodes, transistors and other optoelectronic. as we use it that Emission and receiving of infrared  has paired two tubes. An infrared transmitting and receiving in two type, one is direct emitting, the second is reflective emitting.
the direct emitting and reflective emitting placed in opposite ends of a transmitting terminal with receiving terminal there a piece between the direct emitting and reflective emitting;and They tied together, usually receiving tube always no light, only to encounter a reflection in the infrared light emitted by light emitting diodes, receiving tube receives the reflected infrared light was working.Double infrared emission circuit, can improve the transmitting power, increase function that  the infrared emission  distance.
 According to the characteristics of the infrared LED chips, based on different wavelengths can be more widely used, such as:

1 Wavelength: 940nm, suitable for remote control, such as household electrical appliance remote controller;

2 Wavelength: 808nm, suitable for medical appliance, space optical communication, infrared lighting source, pumping solid laser

3 Wavelength: 830nm, automatic card system is suitable for high-speed road (night vision system is best, can see a little red, tube core is better than that of 850nm)

4 Wavelength: 840nm, suitable for color zoom IR waterproof camera

5 Wavelength: 850nm, suitable for the camera (video) digital photography, monitoring,building intercom, burglar alarm, infrared waterproof, ir led strip

6 Wavelength: 870nm, applicable to shopping malls, at the crossroads of camera