Lighting apparatus for vacuum apparatus
US9360205B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 21, 2011 |
| Grant date | Jun 7, 2016 |
| Priority date | — |
| Expiry date | Jun 27, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/50
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A lighting apparatus for a vacuum apparatus that allows light to enter the inside of the vacuum apparatus through an observation window and makes it possible to see the inside of the vacuum apparatus through the observation window by illuminating the inside of the vacuum apparatus includes a coupling adapter that is removably coupled to the observation window via a coupling unit, an opening that is formed in a central part of the coupling adapter and allows the inside of the vacuum apparatus to be seen through the observation window, and a plurality of LEDs (light-emitting diodes) that are placed in the coupling adapter and face the observation window. The lighting apparatus is attached to the observation window for seeing the inside of the vacuum apparatus and illuminates the inside of the vacuum apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.