Gazing point illuminating device
US6554444B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 6, 2001 |
| Grant date | Apr 29, 2003 |
| Priority date | — |
| Expiry date | May 31, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21W2131/20
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A gazing point illuminating device is provided with: a light source; a direction changing mechanism for changing the lighting direction of the light source; a gazing direction detector for detecting the direction of the user's gazing line; and a controller for changing the lighting direction corresponding to the detected gazing direction. When, LEDs are used as the light source, and the light source is attached to the goggles worn by a user, the goggles can be useful gazing point illuminating device by themselves even if they do not include gazing point or direction detectors, because a person normally look straight ahead except for unusual occasions where he/she purposefully avert his/her gaze. Thus, an illuminating device fixed to a person's head for lighting forward is a gazing point illuminating device. It is preferred to provide an LED panel at the left and right ends of goggles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.