Optical system and induction hob comprising an optical system
US11477862B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2018 |
| Grant date | Oct 18, 2022 |
| Priority date | — |
| Expiry date | Jul 15, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B2206/022
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to an optical system for an induction cooking device with at least one induction coil (2) and an at least partially transparent or semi-transparent top plate (3), the optical system (10) comprising at least one light source (11) to be arranged in a central area of said induction coil (2) in order to provide light through a central opening (2.1) of said induction coil (2), light deflecting means (12) configured to receive light from the light source (11) and provide said light at one or more openings (12.1) and light guiding means (13) for guiding light provided at said one or more openings (12.1) in an area between the upper side of the induction coil (2) and the lower side of the top plate (3), said light guiding means (13) being configured to guide the light into a space between the induction coil (2) and the top plate (3) and provide a light indicator at the top side of the top plate (3).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.