Jinhua Feng

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Chengdu, CN

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Patents Grantslast 30 patents

Information Patent Grant
High accuracy measurement system for focusing and leveling
- Patent number 9,846,373
- Issue date Dec 19, 2017
- The Institute of Optics and Electronics, The Chinese Academy of Sciences
- Yanli Li
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
ILLUMINATION FIELD NON-UNIFORMITY DETECTION SYSTEM, DETECTION METHO...
- Publication number 20240265500
- Publication date Aug 8, 2024
- The Institute of Optics and Electronics, The Chinese Academy of Sciences
- Xiangang LUO
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
HIGH ACCURACY MEASUREMENT SYSTEM FOR FOCUSING AND LEVELING
- Publication number 20170131641
- Publication date May 11, 2017
- The Institute of Optics and Electronics, The Chinese Academy of Sciences
- Yanli Li
- G02 - OPTICS