Time of Flight Illuminator (TOFi)
Structured Lighting Solutions
Structured light illuminator for time of flight applications in a self-contained module including high speed circuitry for industrial depth sensing applications.
- 2 Watts at 685nm, 808nm, and 860nm
- Rise/Fall times of <1 nanosecond through external digital signal
- Possibility of second level protection for eye safe applications
- Uniform illumination area with customizable field of views
- Compact platform
- Time of Flight Camera
- Industrial depth sensing
- Eye Safe gesture recognition
- Volume measurement
- High energy pulse delivery for long range applications
Time of flight
Time of flight applications are based upon the principle of time elapsed for waves of light to hit a target and return back to a sensor. Differences in light travel time defines depth in the scene, where the shorter the pulses, the more accurate the readings. Osela’s TOFI is designed for nano second pulsing which allows for high resolution imaging as well as motion detection. The laser based uniform illumination is ideal for maintaining optical power density over long ranges.
Modulation and camera synchronization
The TOFI is equipped with state of the art electronic circuitry to provide high current pulses by a simple low impedence high speed digital signal. This allows the TOFI to output 2 Watts of power with rise/fall times of less than 1 nanosecond. By calculating the difference in time from emission of light to reception on each pixel of the camera sensor, it is possible to determine the depth structure of the scene. Osela’s TOFI capabilities for sub nanosecond pulsing is a key feature that will allow
for excellent depth accuracy.
Illumination uniformity
Osela’s TOFI illuminator has proprietary beam shaping technology. It allows for uniform laser illumination across large, customizable, field of views while maintaining near perfect optical power throughput efficiency. The even area illumination aids to effectively illuminate the region of interest while maintaining the required dynamic needed in resolving depth.
Fonctional block diagram of the TOFI
