Assignee
ZHEJIANG CRYSTAL OPTECH CO LTD
CN·2 granted patents·5 pending applications·0 citations·filing 2016–2021
Top patents by PatentIndex Score
7 records- 0137US11643716B2High-refractive-index hydrogenated silicon film and methods for preparing the sameZHEJIANG CRYSTAL OPTECH CO LTD·Filed 2018·Granted May 9, 2023·0 cites·6 claims
- 0236US2023244014A1Optical element and optical moduleZHEJIANG CRYSTAL OPTECH CO LTD·Filed 2021·Application pending·0 cites
- 0334US2023178347A1Preparation method of hydrogenated composite film and optical filterZHEJIANG CRYSTAL OPTECH CO LTD·Filed 2021·Application pending·0 cites
- 0432US2023384585A1Optical module and optical system thereof for head-up display, and vehicleZHEJIANG CRYSTAL OPTECH CO LTD·Filed 2021·Application pending·0 cites
- 0530US2024201423A1Optical element and optical moduleZHEJIANG CRYSTAL OPTECH CO LTD·Filed 2021·Application pending·0 cites
- 0630US2023393414A1Medium-free projection systemZHEJIANG CRYSTAL OPTECH CO LTD·Filed 2021·Application pending·0 cites
- 0724US10606049B2Ultra-short distance projection lens with refractive meridional image surface and refractive sagittal image surface being isolatedZHEJIANG CRYSTAL OPTECH CO LTD·Filed 2016·Granted Mar 31, 2020·0 cites·7 claims
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