公开(公告)号：US11133774B2

公开(公告)日：2021-09-28

申请号：US16614253

申请日：2018-01-03

申请人： JIANGSU UNIVERSITY

发明人： Mingyang Chen ,  Li Zhang ,  Pipi Liu ,  Guodong Cao ,  Xiaoming Xu

IPC分类号： H02S20/32 ,  H02S40/20 ,  G05D3/10

摘要： A solar tracking sensor includes lens and four fibers respectively representing four directions installed in a lens barrel to serve as a fine-positioning daylighting module, and four groups of fibers installed on the side of the lens barrel to serve as a coarse-positioning daylighting module. A circuit board and four photocells are installed at the bottom of a cassette. Each photocell is connected to fine positioning fibers located in the same direction as the photocell, and is connected to coarse positioning fibers located in a direction diagonal to the direction of the photocell. By using a daylighting method of combining fine-positioning daylighting and coarse-positioning daylighting, the number of the photocells is reduced, the design of the circuit board is simplified, and costs are reduced; moreover, because the coarse-positioning daylighting module can collect sunlight in a wide-angle range, the tracking angle range of the sensor is enlarged.

公开(公告)号：US10451797B2

公开(公告)日：2019-10-22

申请号：US16321844

申请日：2017-12-18

申请人： STATE GRID JIANGXI ELECTRIC POWER COMPANY INFORMATION & TELECOMMUNICATION BRANCH ,  STATE GRID CORPORATION OF CHINA ,  JIANGSU UNIVERSITY

发明人： Hua Wang ,  Mingyang Chen ,  Xiaosheng Wu ,  Renhua Li ,  Zhimin Cai ,  Guodong Cao ,  Shenyi Li ,  Luming Li ,  Jihai Yang ,  Pingping Fu ,  Meilan Zheng ,  Hui Xiao ,  Hongliang Chu ,  Jun Li ,  Fang Yin

IPC分类号： G02B6/036 ,  G02B6/02

摘要： Provided is a few-mode optical fiber. The optical fiber includes: a core and a cladding enclosing the core. The cladding includes: a first inner cladding surrounding the core; a first high-refractive-index mode filter layer surrounding the first inner cladding; a second inner cladding surrounding the first high-refractive-index mode filter layer; a second high-refractive-index mode filter layer surrounding the second inner cladding; and an outer cladding surrounding the second high-refractive-index mode filter layer.