Speckle reduction device and method of reducing speckle
US10976565B2 · kind B2 · utility
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13Claims
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Key dates
| Filing date | Oct 23, 2017 |
| Grant date | Apr 13, 2021 |
| Priority date | — |
| Expiry date | Jan 4, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/0944
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A speckle reduction device includes: a beam-shaping lens to shape at least one laser beam emitted from at least one light source, and to transmit the shaped laser beam to a panel; and a vibration unit to vibrate the beam-shaping lens in directions of two or more vibration axes such that a direction of the laser beam to be transmitted to the panel is changed to forms a plurality of different patterns.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.