机构

• 长春光学精密机械与物... [1]
• 新疆天文台 [1]
• 上海光学精密机械研究... [1]

采集方式

• OAI收割 [3]

内容类型

• 会议论文 [1]
• 学位论文 [1]
• 期刊论文 [1]

发表日期

• 2015 [1]
• 2006 [1]

学科主题

• 光学工程 [1]

筛选

浏览/检索结果: 共3条，第1-3条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Wideband Conical-Beam Circularly Polarized Microstrip Antenna for Large Ground Plane 期刊论文  OAI收割 Ieee Transactions on Antennas and Propagation, 2015, 卷号: 63, 期号: 10, 页码: 4614-4619 作者:  Jiang, Wen;  Wan, Yang-Tao;  Gong, Shu-Xi;  Yu, Dan   |  收藏  |  浏览/下载：28/0  |  提交时间：2017/07/03 Circular-polarization  Conical-beam  Large Ground Plane  Modified  Elliptical-ring Slots  Shorting Vias  Wideband   The full hemisphere integrating measurement of the reflectance of black cavity (EI CONFERENCE) 会议论文  OAI收割 ICO20: Illumination, Radiation, and Color Technologies, August 21, 2005 - August 26, 2005, Changchun, China 作者:  Wang Y.;  Yu B.;  Wang Y.;  Wang Y.;  Wang Y. 收藏  |  浏览/下载：18/0  |  提交时间：2013/03/25 The conical black cavities are used in the Solar Irradiance Absolute Radiometers (SIARs) of the solar constant monitor aboard on the SZ spaceship and of the Solar Total Irradiance Monitor (STIM) aboard on sun-synchronous polar orbit weather satellites. A low reflectance measurement instrument which is used for making the integrating measurement on the reflectance of the conical black cavity in a high precision within the full hemisphere (include the entrance of the Ulbrichtsphere) has been constructed. The characteristic of the instrument is the employment of a semi-transparent mirror  which is mounted in an inclination angle of 45 degrees in front of the entrance of the Ulbrichtsphere. The incident beam is reflected to the black cavity or white board by the semi-transparent mirror. A portion of those  which is made diffused reflection through the black cavity or white board  is measured by the detector located in the side face of the Ulbrichtsphere  and the other portion which is reflected to the entrance is measured by the other detector  after passing through the semi-transparent mirror  and then being focused on by an ellipsoidal mirror. The two measurement data are added up to get the integrating reflectance within full hemisphere. The presentation and verification on the measurement result of the reflectance of the black cavity and its precision are described in this article. The absolute accuracy can reach 0.012%.   级联锥形折射环形泵浦的模式可调的涡旋光激光器 学位论文  OAI收割 作者:  吴勇晓   |  收藏  |  浏览/下载：83/0  |  提交时间：2018/12/26 涡旋光束  Vortex beam  环形光泵浦  annular pumping  Nd:YAG激光器  Nd:YAG laser  级联锥形折射  cascade conical refraction