Fluorescent material coating apparatus and method of coating fluorescent substance using the same
US7455733B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2006 |
| Grant date | Nov 25, 2008 |
| Priority date | — |
| Expiry date | Mar 3, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05D2254/04
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
There is provided a fluorescent material coating apparatus for a fluorescent lamp. The fluorescent material coating apparatus includes a cassette on which a plurality of glass tubes are detachably mounted, a delivery member having a delivery chamber communicating with first ends of the glass tubes, a negative pressure generating unit for allowing fluorescent solution to be drawn into the glass tubes by generating a negative pressure in the glass tubes communicating with the delivery chamber by lowering the pressure of the delivery chamber, a dry air supplying unit for supplying dry air to the delivery chamber to dry the fluorescent solution applied on inner surfaces of the glass tubes, a solution tank containing the fluorescent solution and disposed below the glass tubes mounted on the cassette, and a moving unit for allowing lower end portions of the glass tubes mounted in the delivery chamber to be dipped into the fluorescent solution contained in the solution tank.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.