The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 13, 2025
Filed:
May. 24, 2022
Feng Chia University, Taichung, TW;
Jing Heng Chen, Taichung, TW;
Chien Yuan Han, New Taipei, TW;
Fan Hsi Hsu, Hsinchu, TW;
Kun-Huang Chen, Taichung, TW;
Chien Hung Yeh, Taichung, TW;
Hung Lung Tseng, Taichung, TW;
Feng Chia University, Taichung, TW;
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.