Notification appliance and method thereof
US8836532B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2009 |
| Grant date | Sep 16, 2014 |
| Priority date | — |
| Expiry date | Aug 8, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A notification appliance configured to emit a notification output based upon at least one detected environmental condition is provided that includes a sensor configured to detect the at least one environmental condition, at least one light emitting diode (LED) light source configured to emit light having an intensity during a pulse time period, and a controller in communicative connection with the sensor and the LED light source, wherein the controller is configured to control the LED light source so that the pulse time period is approximately less than or equal to two hundred milliseconds (200 ms), while substantially maintaining an effective intensity and enhancing a perceived brightness of the emitted light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.