公开(公告)号：US20220382213A1

公开(公告)日：2022-12-01

申请号：US17752328

申请日：2022-05-24

申请人： FENG CHIA UNIVERSITY

发明人： JING HENG CHEN ,  CHIEN YUAN HAN ,  FAN HSI HSU ,  KUN-HUANG CHEN ,  CHIEN HUNG YEH ,  HUNG LUNG TSENG

IPC分类号： G03H1/04 ,  G02B5/32 ,  G02B27/28

摘要： An apparatus for manufacturing a radial or azimuthal polarization conversion component includes a reflector having a truncated cone shape. The reflector has a top portion, a bottom portion, and a circumferential portion connected between the top portion and the bottom portion. When a light beam is incident vertically from above, a part of the light beam vertically passes through the top portion to the bottom portion, a part of the light beam enters the circumferential portion at an incident angle and forms a reflected light beam to enter the bottom portion at an incident angle, the reflected light enters the holographic recording material at a refraction angle to generate an exposure range;

公开(公告)号：US20220382212A1

公开(公告)日：2022-12-01

申请号：US17752285

申请日：2022-05-24

申请人： FENG CHIA UNIVERSITY

发明人： JING HENG CHEN ,  CHIEN YUAN HAN ,  FAN HSI HSU ,  KUN-HUANG CHEN ,  CHIEN HUNG YEH ,  HUNG LUNG TSENG

IPC分类号： G03H1/02 ,  G03H1/04 ,  G02B27/28

摘要： A method for manufacturing a radial or azimuthal polarization conversion component comprises the steps of: placing a holographic recording material between two right-angle prisms, wherein the holographic recording material is divided into at least four sector-shaped areas and is partially shielded, and only one of the sector-shaped areas is exposed each time; allowing a recording light to pass through the right-angle prisms and the exposed sector-shaped area of the holographic recording material and to interfere with a reflected object light on the holographic recording material; rotating the holographic recording material to expose the other sector-shaped areas one by one to be constructed for manufacturing volume holograms with diffraction angles of 48.19 degrees, 60 degrees or about 85 degrees.