Scanned beam projector pulsed laser control
US9560328B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 6, 2015 |
| Grant date | Jan 31, 2017 |
| Priority date | — |
| Expiry date | Oct 6, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/3194
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Briefly, in accordance with one or more embodiments, a scanned beam projector comprises a laser diode to emit a beam, a scanning engine to scan the beam on a surface to project an image comprising virtual pixels on the surface, a digital-to-analog converter (DAC) coupled to the laser diode to cause the laser diode to emit the beam in response to a digital video signal provided to the DAC, and a pulsed pixel controller to provide the digital video signal to the DAC, the pulsed pixel controller to align the digital video signal provided to the DAC with the virtual pixels of the image, and to select an optimal waveform to be generated by the laser diode for each virtual pixel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.