# OAK 4 SoM

## Specification

### Variant: OAK 4 SoM

[Shop](https://shop.luxonis.com/products/oak-4-som)

| Property | Value |
| --- | --- |
| Based on | RVC4 |
| Dot projector | Yes |
| Infrared | No |
| IMU | None |

## IR perception

The Pro version of this device has [notch IR filters at
940nm](https://github.com/luxonis/oak-hardware/assets/18037362/b3e5caf3-1dd9-4156-b9a9-d81041945230) on the stereo camera pair,
which allows both visible light and IR light from illumination LED/laser dot projector to be perceived by the camera.

#### IR Dot Projector

The IR laser dot projector projects many small dots in front of the device, which helps with disparity matching, especially for
low-visual-interest surfaces (blank surfaces with little to no texture), such as a wall or floor. The technique that we use is
called [ASV](https://en.wikipedia.org/wiki/Computer_stereo_vision#Conventional_active_stereo_vision_(ASV)) - conventional Active
Stereo Vision - as stereo matching is performed on the device the same way as on OAK-D (passive stereo).

On the image below there's a blank wall with no texture. Without the dot projector, (passive) depth perception is poor. With the
dot projector set to ~200mA, the (active) depth perception looks much better. If you look closely at the bottom left frame, you
can see little dots all around the wall.

#### IR Illumination LED

Flood IR LED illumination allows perceiving low-light and no-light environments. You can run your AI/CV processes on frames that
are illuminated by the IR LED. Note that the color camera doesn't perceive IR light, so you would need to use a mono camera stream
for your AI/CV processes.

## Power consumption

The RVC4 itself has a maximum power peaks of about 25W, which is mainly consumed by the SoC, Qualcomm's QCS8550, that is
integrated inside the RVC4.

 * Max peak: 25W
 * Max average: 10-15W
 * Average idle: 1.6W
 * Booting peak: 12W
 * Booting average: 2.3W (~15sec)

## Operating temperature

The validated ambient operating temperature of OAK4 devices is -20°C to +50°C for full-system deployment.

OAK4 cameras are designed for industrial environments with changing thermal conditions. Climate testing followed industrial
environmental test methods (IEC 60068 family), and performance remained stable during and after temperature variation testing.

To find out more, see our [Operating
Temperature](https://docs.luxonis.com/hardware/platform/environmental-specifications/operating-temperature.md) documentation.

## Laser Safety

This product is classified as a Class 1 Laser Product under the EN/IEC 60825-1, Edition 3 (2014) internationally.

 * Do not power on the product if any external damage was observed.
 * Do not attempt to open any portion of this laser product.
 * Invisible laser radiation when opened. Avoid direct exposure to the beam.
 * There are no user serviceable parts with this laser product.
 * Modification or service of the stereo module, specifically the infrared projector, may cause the emissions to exceed Class 1.
 * No magnifying optical elements, such as eye loupes and magnifiers, are allowed.
 * Do not try to update camera firmware that is not officially released for specific camera module and revision.