发明名称 |
Lentokentän valaistuslaite |
摘要 |
An airport lighting device (10) includes a light pipe (12) and a tungsten halogen reflector lamp (14) transmitting light beams parallel with the axis of the light pipe (12). This allows the use of a dichroic filter which provides for an increased transmission whereby low wattage lamps (36w) can be used instead of the more usual 100 to 200w light sources. A number of shaped prisms can be used as end arrangements whereby different effects are obtained, for example, bi-directional, omni-directional or angled beams can be provided. |
申请公布号 |
FI91103(B) |
申请公布日期 |
1994.01.31 |
申请号 |
FI19870000452 |
申请日期 |
1987.02.02 |
申请人 |
THORN EMI PLC |
发明人 |
SIMONS, RONALD HARVEY;WILKINSON, BASIL SIDNEY;HENRY, IVOR CHARLES |
分类号 |
F21S2/00;B64F1/20;E01F9/00;E01F9/06;F21S8/00;F21V8/00 |
主分类号 |
F21S2/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|