In the selection of infrared led light beads, what matters need to pay attention to, follow me to explore.

1.Wavelength

This is the primary concern of the parameter. led most common waves are 660nm 850nm 940nm, these wavelengths in the remote control, medical, cosmetic and monitoring is more common. 1000nm above the work of the use of more, such as 1050nm 1300nm 1450nm these are mostly used in the machine vision and heating purposes.

2. Package size

The package size of led beads is related to the chip and power used. Smaller chips such as 10mil or so are usually used for small power, due to the chip so the package bracket is also small, made out of led lamp bead power is usually within 0.2w, this plug-in lamp bead is common.

Larger chips can withstand greater current and voltage, the light-emitting area is also larger, the power is naturally greater. The package size of high power infrared led lamp beads are 2830 2835 3535 5050, etc., 3535 is more common. 3535 infrared led lamp beads bracket package size is 3.5*3.5mm, you can use 42mil and 45mil chip, single lamp bead power up to 3w, is a common model of high power lamp beads.

3. Electrical parameters

Hongshuo electro-optical 3535 high-power infrared lamp beads, for example, its operating voltage between 1-2v, current up to 1000ma, the theoretical value of the electric power in about 3w. Small power lamp bead current in a few milliamps to tens of milliamps ranging from power within 0.2w. When doing circuit design needs to be strictly in accordance with the specification of the infrared led lamp beads to design.

4. Photoelectric conversion efficiency

The photoelectric conversion efficiency of infrared led lamp beads is high, usually within 50%, which is related to its wavelength, the specific value to the specific wavelength of the test data shall prevail.

5. other parameters

Light emitting angle The light emitting angle is the angle of the light emitted from the batch of lamp beads through the lens, according to the use of different scenarios and optical design to choose the appropriate angle. The common angles are 120°90° 60°30°.

Service life means that in a particular environment, led use in the attenuation to its initial value of 50% of the time. Usually 30,000 hours, excessive current and voltage will accelerate the aging.

Heat dissipation The use of led is usually in a closed environment, the heat dissipation conditions will not be too ideal, the use of high-power infrared led lamp beads are bound to take into account this problem. Refer to the specifications in the design can be evaluated by simulation software, do sample stage through the infrared analyzer for measurement, try to make the shell temperature, circuit board temperature, core temperature control in a reasonable range.

Here is the official website of Hongshuo photoelectric, if you encounter doubts and problems in the selection, welcome to call our customer service phone to consult us.