Optical hazard avoidance and method
US8724097B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 14, 2012 |
| Grant date | May 13, 2014 |
| Priority date | — |
| Expiry date | Jun 25, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/8803
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A source of light that could cause ocular damage within a given range from the source of light, such as a first laser, is accompanied by an optical hazard avoidance device, such as a second laser, that stimulates voluntary, involuntary, or both voluntary and involuntary responses, either physiological or behavioral or both physiological and behavioral, within one or more hazard zones, such as by inducing gaze aversion within the viewer. For example, a visible laser beam induces gaze aversion, pupil contraction or a combination of gaze aversion and pupil contraction, reducing the dose rate or exposure of the ocular tissue to damaging radiation from a primary source. In one example, the primary source is a UV Raman detector and the visible laser beam is selected to induce gaze aversion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.