公开(公告)号：US20250155319A1

公开(公告)日：2025-05-15

申请号：US18931867

申请日：2024-10-30

Applicant: CHROMA ATE INC.

Inventor： I-Chang Chiu ,  Hung-Ta Chien ,  Yu-Shuan Lin ,  Shih-Min Hsu ,  Li-Yang Chen ,  Tsung-Hsien Ou

IPC: G01M11/02 ,  H04N13/327

Abstract: A system and a method for calibration of optical measurement devices are described. In one embodiment, the optical measurement device comprises an imaging lens, and the calibration system includes a projection light source, a lens module, and a projection element. The light emitted from the projection light source passes through the projection element and is projected by the lens module, and then captured by the imaging lens of the optical measurement device. The exit pupil of the lens module in the calibration system is coincident with the entrance pupil of the imaging lens of the optical measurement device, providing a compact and highly efficient optical calibration mechanism.

公开(公告)号：US20240426656A1

公开(公告)日：2024-12-26

申请号：US18659429

申请日：2024-05-09

Applicant: CHROMA ATE INC.

Inventor： Hong-Yau Mong ,  Tsung-Hsien Ou ,  Yu-Shuan Lin ,  Shih-Yao Pan ,  Shih-Min Hsu

IPC: G01J1/44 ,  G01J1/42 ,  G01J3/50 ,  G09G3/00 ,  H04N23/67

Abstract: An automated optical measurement system and method for a near eye display are provided. A controller first controls the near eye display to display a specific pattern, then controls a displacement generation module to drive an image sensing module toward or away from an imaging module, and controls the image sensing module to capture the specific pattern to obtain focus images; and the controller performs focusing according to the focus images. Finally, the controller measures an optical characteristic of the near eye display. Accordingly, the focusing method used is to capture the specific pattern displayed by the near eye display while moving the image sensing module, and perform automatic focusing by comparing the capture results.