Control of the level of illumination premises
US5237168A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 13, 1992 |
| Grant date | Aug 17, 1993 |
| Priority date | — |
| Expiry date | May 13, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B80/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An installation for the control of the level of illumination of premises provided with openings towards the outside and acting on means for blocking the openings or on means for variable artificial illumination associated with controllable operating devices, on the one hand by means of contacts which can be actuated manually and, on the other hand, by an automatic control comprising a logical processing unit depending on a reference value corresponding to a level of illumination established by the user and recorded by the LPU. The photosensitive means measuring the illumination are mounted on a mobile module in which the LPU is also preferably mounted. The reference value is established by means of the contacts and is recorded in the LPU either automatically or by actuating a third contact.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.