Shatter-proof fluorescent lamp
US5124618A · kind A · utility
53Cited by
7References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 13, 1990 |
| Grant date | Jun 23, 1992 |
| Priority date | — |
| Expiry date | Nov 13, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A shatter-proof fluorescent lamp which includes a glass tube, electrodes connected to opposite terminal ends of the glass tube, a phosphor layer coated on the inside surface of the glass tube, a gaseous mixture containing mercury and rare gases confined in the glass tube, at least one ultraviolet ray absorbing layer capable of absorbing ultraviolet rays of 400 nm or less formed on the glass tube, and a transparent polymer resin layer formed on the ultraviolet ray absorbing layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.