Liquid crystal based optical deflector and optical scanner using the same
US11609477B2 · kind B2 · utility
0Cited by
6References
12Claims
0Family size
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Key dates
| Filing date | Mar 10, 2020 |
| Grant date | Mar 21, 2023 |
| Priority date | — |
| Expiry date | Jul 24, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/1075
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A liquid crystal based optical deflector includes a light source array configured to generate a laser beam, an optical deflector including a plurality of liquid crystal cells, which transmit the laser beam, the optical deflector configured to deflect a transmission path of the laser beam depending on a gradually increased voltage profile applied to the plurality of liquid crystal cells, an optics assembly configured to scan the laser beam deflected by the optical defector in a horizontal direction, and a controller configured to adjust the voltage profile applied to the plurality of liquid crystal cells.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.