公开(公告)号：US11435562B2

公开(公告)日：2022-09-06

申请号：US16689293

申请日：2019-11-20

Applicant: TRIPLE WIN TECHNOLOGY(SHENZHEN) CO.LTD.

Inventor： Jin-Ke Chen

IPC: G02B13/16 ,  G03B21/20 ,  G03B21/14

Abstract: A device for projecting a test pattern for evaluating the image-capturing properties of a lens module includes a light emitting assembly. The light emitting assembly includes a light emitter and a patterning plate on the light emitter. The patterning plate includes a first surface facing the light emitter and a second surface opposite to the first surface. The second surface is concave and defines a patterning groove. The light from the light emitter passes through the patterning groove to form an original pattern for testing, the display of a test pattern being instantly selectable and displayable.

公开(公告)号：US11323609B2

公开(公告)日：2022-05-03

申请号：US16847798

申请日：2020-04-14

Applicant: TRIPLE WIN TECHNOLOGY(SHENZHEN) CO.LTD.

Inventor： Jin-Ke Chen ,  Shin-Wen Chen

IPC: H04N5/232 ,  H04N5/225

Abstract: A method for testing an autofocus function of a camera module fixes a camera module and at least two test members sequentially spaced at different positions on an axis pointing straight away from the camera. The camera module is controlled to focus and capture images of each test member and record driving currents of the camera module to achieve those focuses at those distances. When a sharpness of image of a test member reaches a preset threshold value a correspondence table between the driving currents and object distances is generated. An autofocus testing device is further provided.

公开(公告)号：US20210181454A1

公开(公告)日：2021-06-17

申请号：US17023699

申请日：2020-09-17

Applicant: TRIPLE WIN TECHNOLOGY(SHENZHEN) CO.LTD.

Inventor： Jin-Ke Chen ,  Xing-Yuan Zhang ,  Wei Wang ,  Jie Wang ,  Peng-Qi Yu ,  Yi-Bo Xing

IPC: G02B7/04 ,  G02B7/02

Abstract: A focusing device includes a fixing base, a screw rod, a focusing gear, a height adjusting ring, and a focusing ring. A first through hole is defined in the fixing base, the screw rod with a first thread is movably mounted on the fixing base. The focusing gear is also mounted on the fixing base and defines a third through hole corresponding to the first through hole. An outer wall of the focusing gear has an engaging portion meshing with the first thread. The focusing ring is movably received in the third through hole and located on a side of the height adjusting ring away from the fixing base. The height adjusting ring can adjust a distance between the focusing ring and a lens module to avoid distortion of an optical lens in any circumstances during focusing.