发明名称 |
A PORTABLE ILLUMINATION DEVICE |
摘要 |
A portable illumination device suitable for use as a writing surface comprises: a layered electroluminescence member (2); a thin printed circuit board (3); and a thin laminar structured battery (4). The thin printed circuit board (3) of the device includes, or is provided in association therewith, means to enable a DC current to be converted into an AC current. |
申请公布号 |
GB8924976(D0) |
申请公布日期 |
1989.12.28 |
申请号 |
GB19890024976 |
申请日期 |
1989.11.06 |
申请人 |
DOWTY ELECTRONIC COMPONENTS LTD |
发明人 |
|
分类号 |
F21K99/00;F21L4/00;F21V13/00;F21V23/00;F21Y101/00 |
主分类号 |
F21K99/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|