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:
Oct. 03, 2023
Filed:
May. 10, 2022
Interface Technology (Chengdu) Co., Ltd., Sichuan, CN;
Interface Optoelectronics (Shenzhen) Co., Ltd., Guangdong, CN;
Interface Optoelectronics (Wuxi) Co., Ltd., Jiangsu, CN;
General Interface Solution Limited, Miaoli County, TW;
Chao-Yi Yeh, Guangdong, CN;
Jiangyun Zhou, Guangdong, CN;
Siqi Wang, Guangdong, CN;
Ya-Chu Yang, Guangdong, CN;
Interface Technology (ChengDu) Co., Ltd., Sichuan, CN;
Interface Optoelectronics (ShenZhen) Co., Ltd., Guangdong, CN;
Interface Optoelectronics (Wuxi) Co., Ltd., Jiangsu, CN;
General Interface Solution Limited, Miaoli County, TW;
Abstract
A method includes: transmitting an incident light to an object located on a stage, in which a first light and a second light are reflected; receiving the first light and the second light by an imaging lens group to obtain a third pattern corresponding to the first pattern and a fourth pattern corresponding to the second pattern; transmitting the third pattern and the fourth pattern to an image sensor, in which a center point of the third pattern and a center point of the fourth pattern are separated by a first distance on the image sensor; calculating a tilted angle between an optical axis of the imaging lens group and a normal direction of the stage according to the first distance; and adjusting the stage according to the tilted angle such that the normal direction is parallel to the optical axis.