Irradiation apparatus
US11137594B2 · kind B2 · utility
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5Claims
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Assignee
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Key dates
| Filing date | Jul 17, 2019 |
| Grant date | Oct 5, 2021 |
| Priority date | — |
| Expiry date | Jan 12, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2310/04
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
There is provided an irradiation apparatus 1 including a laser light source 6, a light deflector 7, and a control unit 8. The light deflector 7 has a piezoelectric actuator 74 that include a plurality of piezoelectric cantilevers 79 in a meandering pattern arrangement. In the control unit 8, the driving voltage control unit 14 stops supplying a driving voltage to some piezoelectric cantilevers 79 when a designated drawing area designated by the drawing area designating unit 15 is an upper drawing area Fu and a lower drawing area Fd that are partial drawing areas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.