An SLS camera (Structured Light Sensor camera) is a type of device that uses infrared light and depth-sensing technology to map environments in 3D. It gained popularity in the paranormal investigation community due to its use in detecting what are believed to be "unseen" entities by mapping human-like shapes that aren't visible to the naked eye.

Here’s a breakdown of what an SLS camera is and how it works:

 

🔍 What is an SLS Camera?

SLS stands for Structured Light Sensor. The camera uses infrared (IR) light and depth mapping to create a 3D model of the environment, typically displaying it on a screen with a stick figure overlay where it detects a human form or shape.

 

🧠 How Does It Work?

• The device projects a grid of infrared dots (structured light) into the environment.

• A sensor (often from a Microsoft Kinect or similar device) reads how those dots are distorted when they hit objects.

• Using software (often based on Xbox Kinect SDK), it interprets the data to detect human-shaped forms.

• These forms are displayed as stick figures on the screen, overlaid on a live video feed.

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⚙️ Components:

• Infrared projector (typically from Kinect sensor)

• IR camera and RGB camera

• Depth sensor

• Tablet or display to show real-time data

• Software that interprets sensor data and identifies human shapes

 

👻 Use in Paranormal Investigations:

In ghost hunting, investigators use SLS cameras to:

• Detect unexplained stick figures or movement not visible to the eye.

• Interact with entities that appear as stick figures (e.g., asking them to wave or move).

• Validate paranormal activity when no physical person is present.