基本信息:
- 专利标题： ILLUMINATING DEVICE COMBINING A WHITE LED AND A DIFFUSING SHEET
- 申请号：EP06742563.7 申请日：2006-03-23
- 公开(公告)号：EP1927098B1 公开(公告)日：2018-05-23
- 发明人： VLOTTES, Peter
- 申请人： ARKEMA FRANCE
- 申请人地址： 420, rue d'Estienne d'Orves 92700 Colombes FR
- 专利权人： ARKEMA FRANCE
- 当前专利权人： TRINSEO EUROPE GMBH
- 当前专利权人地址： TRINSEO EUROPE GMBH
- 优先权： FR0502985 20050325; US686841P 20050602
- 国际公布： WO2006100127 20060928
- 主分类号： G09F13/04
- IPC分类号： G09F13/04 ; F21V7/00 ; G02B5/02 ; B60R13/00 ; C08F265/06 ; C08F279/02 ; C08F279/04 ; C08L33/04 ; C08L51/00 ; C08L51/04 ; C08L55/02 ; F21V3/04 ; G02B1/04 ; F21Y115/10
摘要：
The invention relates to a luminous device, in particular an illuminated sign, comprising at least one white LED having a luminous flux of greater than 3 Lm, advantageously greater than 5 Lm, preferably greater than 10 Lm and even more preferably greater than 50 Lm, and to a cover made of a transparent plastic in which scattering particles with a content of 0.3 to 5%, preferably 0.3 to 4%, are dispersed, and having, when the LED is off, a luminosity L of less than 40, preferably less than 35, and when the LED is lit, a luminosity L of greater than 55, an a* value of between -7.5 and +7.5 and a b* value of between -7.5 and +7.5. The scattering particles may be of organic nature. In which case they may be polyamide or PTFE particles, methyl-methacrylate-based crosslinked particles, crosslinked styrene-based particles or silicone particles. The scattering particles may be of mineral nature. In this case they may be BaSO 4 , Ti0 2 , ZnO, CaCO 3 , MgO or AI 2 O 3 particles or hollow glass microspheres .
公开/授权文献:
IPC结构图谱:
| G | 物理 |
| --G09 | 教育；密码术；显示；广告；印鉴 |
| ----G09F | 显示；广告；标记；标签或铭牌；印鉴 |
| ------G09F13/00 | 有照明的标记；发光广告 |
| --------G09F13/04 | .后面有照明的标记、面板或牌 |