| 发明名称 | Lens module testing method | ||
| 摘要 | A lens module testing method includes the following steps: providing a lens module having a lens and a barrel; determining whether a modulation transfer function value of the lens is in a predetermined range; if not, separating the lens and the barrel, and forming a first coating layer and a second coating layer on the lens to obtain a coated lens having a number of dots; capturing a first image of the coated lens; placing the coated lens in the barrel to obtain the lens module, and capturing a second image of the coated lens; randomly choosing one dot from the dots, and determining an actual moving distance of the chosen dot using a 3D-Digital Image Correlation according to the first image and the second image; adjusting a size of the lens according to the actual moving distance; and displaying the adjusted size of the lens to a user. | ||
| 申请公布号 | US9116073(B2) | 申请公布日期 | 2015.08.25 |
| 申请号 | US201314065441 | 申请日期 | 2013.10.29 |
| 申请人 | HON HAI PRECISION INDUSTRY CO., LTD. | 发明人 | Shen Hung-Tsan |
| 分类号 | G01M11/00;G01M11/02 | 主分类号 | G01M11/00 |
| 代理机构 | Novak Druce Connolly Bove + Quigg LLP | 代理人 | Novak Druce Connolly Bove + Quigg LLP |
| 主权项 | 1. A lens module testing method, comprising: providing a lens module comprising a barrel and a lens received in the barrel; measuring whether a modulation transfer function value of the lens module is in a predetermined range; if not, separating the lens and the barrel, and forming a first coating layer and a second coating layer on the lens to obtain a coated lens, wherein a color of the first coating layer is different from a color of the second coating layer, the first coating layer completely covers the lens, the second coating layer includes a plurality of dots formed on the first coating layer, shapes of the dots are different from each other, and sizes of the dots are different from each other; capturing a first image of the coated lens using a camera module; placing the coated lens in the barrel to obtain the lens module, and capturing a second image of the coated lens placed in the barrel; randomly choosing one dot from the dots, and determining an actual moving distance of the chosen dot using a 3D-Digital image correlation method according to the first image and the second image; adjusting a size of the lens according to the actual moving distance of the random dot; and displaying the adjusted size of the lens to a user. | ||
| 地址 | New Taipei TW | ||