Laser projection system with security protection mechanism
US9028072B2 · kind B2 · utility
5Cited by
4References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 17, 2013 |
| Grant date | May 12, 2015 |
| Priority date | — |
| Expiry date | Jan 8, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/3194
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A laser projection system comprising a laser light and a human body detection module is disclosed. The laser light source emits a laser light. The human body detection module detects a reflective light of the laser light irradiated on an object. The human body detection module determines whether the object is a human according to a relationship between several reflectivity indexes of the reflective light. If the relationship corresponds to predefined situation, the human body detection module reduces a laser output intensity of the laser light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.