Ventilation/illumination duct, ventilation/illumination system using the ventilation/illumination duct, and control method for the ventilation/illumination system
US7651256B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 19, 2006 |
| Grant date | Jan 26, 2010 |
| Priority date | — |
| Expiry date | Aug 29, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F2221/22
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A ventilation/illumination duct is disclosed which can not only ventilate an indoor space, but also can illuminate the indoor space. A ventilation/illumination system using the ventilation/illumination duct, and a control method for the ventilation/illumination system are also disclosed. The ventilation/illumination system includes a ventilation device for blowing air, a light supplying device for supplying light, a ventilation/illumination duct for not only guiding the air blown by the ventilation device, to ventilate an indoor space, but also totally reflecting the light, to illuminate an indoor space, and a cleaner arranged in the ventilation/illumination duct.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.