公开(公告)号：US12298712B2

公开(公告)日：2025-05-13

申请号：US17752328

申请日：2022-05-24

Applicant: FENG CHIA UNIVERSITY

Inventor： Jing Heng Chen ,  Chien Yuan Han ,  Fan Hsi Hsu ,  Kun-Huang Chen ,  Chien Hung Yeh ,  Hung Lung Tseng

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

Abstract: 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.