Foot scanners are optical 3D scanning devices. Below is a description of their working principles and radiation safety precautions:
How Laser Foot Scanners Work
Laser foot scanners project a laser beam onto the surface of the foot, capturing the foot’s 3D shape through changes in laser reflection. The specific process is as follows:
Laser Emission
The laser emits one or more laser beams, typically invisible or weakly visible, at low power.
Light Scanning
The laser scans the foot surface along a predetermined path. As the laser encounters different heights and curved surfaces on the foot, the reflection angle and distance change.
Sensor Reception
A sensor (such as a camera or photodetector) receives the reflected laser signal and records the reflection time or position change.
Data Processing
The spatial coordinates of each point on the foot are calculated through triangulation or time-of-flight (TOF) analysis, generating high-precision 3D point cloud data.
Model Generation
The software stitches, filters, and models the point cloud data to produce a complete and accurate 3D model of the foot.
Does a laser foot scanner emit radiation?
Laser radiation is non-ionizing, with energy far lower than X-rays and ultraviolet rays, and therefore poses no ionizing risk to the human body.
Low-power lasers (such as Class 1 lasers) are typically used, offering a high safety rating and preventing damage to skin and eyes (although direct viewing of the laser beam should be avoided).
Therefore, laser foot scanners are safe for the human body and pose no radiation hazards.
Laser foot scanners capture the three-dimensional shape of the foot through the reflection of a laser beam. They are safe, non-ionizing radiation devices that pose no risk to human health and are suitable for foot shape measurement and custom insoles.
