It's a Chinese domestic bullet model, can't find the corresponding international model
Quoted from DarkFighterX
Specification:
SoC: Hisilicon Hi3519AV100
CMOS: Unknown dual 1/2.8" 2MP
RAM: 2GB
ROM: 8GB EMMC
Lens: 4mm F1.0 M14 + F1.6 M12
Light: White light + 750nm IR / Hybrid
Quick review:
1+1>2? No
The 750nm IR LED is too visible to human eyes, too bright, without turning on the 750nm IR, there's no any difference between the bi-spectrum combined image and color-only image. When I turn of the 750nm IR and set the camera to night mode, which only use the B/W sensor with M12 F1.6 lens, it's totally dark, nothing visible, image is worse than any $5 garbage camera
The meaning of using two sensors and bi-spectrum combined image is to get full color image WITHOUT any human eyes visible supplementary light, If I can use two red bulbs to get B/W image, why not use white light LED directly?
One 1/1.8" sensor is much better than two 1/2.8" sensors, 1+1<2
Teardown
↓ The bigger lens is M14 F1.0 for human eyes visible light, the other one with a M12 F1.6 lens for IR light only
↓ The LED in the middle seems to be fake, only for decoration. Differently from commonly used 850nm IR, it uses 750nm IR which is obviously visible to human eyes, like two red bulbs
↓ Huge heat sink
↓ Back of the main PCB board. SoC Hisilicon Hi3519AV100 with 2 Tops computing power
↓ Lens is sticked to the sensor board with glue, and then glued together. As you can see, there's no electronic IR-CUT filter for either lens
Quoted from DarkFighterX
Specification:
SoC: Hisilicon Hi3519AV100
CMOS: Unknown dual 1/2.8" 2MP
RAM: 2GB
ROM: 8GB EMMC
Lens: 4mm F1.0 M14 + F1.6 M12
Light: White light + 750nm IR / Hybrid
Quick review:
1+1>2? No
The 750nm IR LED is too visible to human eyes, too bright, without turning on the 750nm IR, there's no any difference between the bi-spectrum combined image and color-only image. When I turn of the 750nm IR and set the camera to night mode, which only use the B/W sensor with M12 F1.6 lens, it's totally dark, nothing visible, image is worse than any $5 garbage camera
The meaning of using two sensors and bi-spectrum combined image is to get full color image WITHOUT any human eyes visible supplementary light, If I can use two red bulbs to get B/W image, why not use white light LED directly?
One 1/1.8" sensor is much better than two 1/2.8" sensors, 1+1<2
Teardown
↓ The bigger lens is M14 F1.0 for human eyes visible light, the other one with a M12 F1.6 lens for IR light only
↓ The LED in the middle seems to be fake, only for decoration. Differently from commonly used 850nm IR, it uses 750nm IR which is obviously visible to human eyes, like two red bulbs
↓ Huge heat sink
↓ Back of the main PCB board. SoC Hisilicon Hi3519AV100 with 2 Tops computing power
↓ Lens is sticked to the sensor board with glue, and then glued together. As you can see, there's no electronic IR-CUT filter for either lens
