The irradiation distance of the infrared lamp beads of the monitoring probe

huwei900823

The irradiation distance of the infrared lamp beads of the monitoring probe [Copy link]

Dear brothers, surveillance cameras have infrared at night. Is there any relationship between the specific irradiation distance of infrared lamp beads and the overall power of infrared lamp beads? What is the formula? Does anyone know? I am currently using 3W 3535 lamp beads, 3 pieces, the actual power used is 1W/piece, a total of 3W. Can the irradiation distance be 30m?

huwei900823

Where is the master?

chunyang

The lighting distance is obviously related to the luminous power of the lamp, but not only that, the scattering range also has a great influence. Whether the light is focused and the degree of focus directly affect the light intensity at a specific location, so there is no direct calculation formula. The best way is to test, but 3W needs to cover 30 meters, which requires a high ISO value for the camera.

huwei900823

chunyang posted on 2018-2-5 16:00 The lighting distance is obviously related to the luminous power of the lamp, but not only that, the scattering range also has a great influence, whether it is focused and the degree of focusing are directly affected...

OK. Thank you. I will test it.

qwqwqw2088

The parameters of infrared lamp beads include radiation mode and luminous flux, which are also factors affecting the distance.

cj_in

You can choose a large aperture lens, infrared light source plus focusing

huwei900823

cj_in posted on 2018-2-6 14:34 You can choose a large aperture lens, infrared light source plus focusing

Thank you 3W 30 meters is completely fine I have tested it at night. Thank you

huwei900823

qwqwqw2088 posted on 2018-2-6 08:56 Among the parameters of infrared lamp beads, radiation pattern and luminous flux are also factors that affect distance

Yes. Thank you

PowerAnts

This mainly depends on the illuminance lux (lumens/square meter). The brightness at a certain point is inversely proportional to the square of the distance. In fact, whether it can illuminate 30 meters away can be clearly seen by looking at the camera output.