| 发明名称 | Surface light guide and planar emitter | ||
| 摘要 | A surface light guide includes a radiation exit area running along a main extension plane of the surface light guide and includes a light guiding region, which has scattering locations and a coating arranged on a first main area of the light guiding region, wherein radiation coupled in along the main extension plane impinging on the first main area after scattering at the scattering locations has an excessively increased radiation component and the coating reduces in a targeted manner an exit of the excessively increased radiation component from the radiation exit area. | ||
| 申请公布号 | US9488769(B2) | 申请公布日期 | 2016.11.08 |
| 申请号 | US201113642924 | 申请日期 | 2011.03.23 |
| 申请人 | OSRAM Opto Semiconductors GmbH | 发明人 | Brick Peter;Frank Joachim;Kaiser Stephan;Kuhn Gerhard;Markytan Ales;Muschaweck Julius;Neugirg Christian |
| 分类号 | G02B6/10;F21V8/00 | 主分类号 | G02B6/10 |
| 代理机构 | DLA Piper LLP (US) | 代理人 | DLA Piper LLP (US) |
| 主权项 | 1. A surface light guide comprising a radiation exit area running along a main extension plane of the surface light guide and comprising a light guiding region, which has scattering locations and a coating arranged on a first main area of the light guiding region, wherein radiation coupled in along the main extension plane impinges on the first main area after scattering at the scattering locations; an extent of the scattering locations is at least five times as large as a peak wavelength of the radiation in the light guiding region; the coating reduces transmission of radiation in a red spectral range and in a blue spectral range for angles of 20° to 40° compared to an untreated interface; and radiation impinging at an angle of 0° can pass through the coating virtually unimpeded. | ||
| 地址 | DE | ||