Two-dimensional optical scanner and light stimulus apparatus
US8643924B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 6, 2012 |
| Grant date | Feb 4, 2014 |
| Priority date | — |
| Expiry date | Aug 1, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/33
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Two-dimensional optical scanner includes: a first acousto-optical deflector (AOD) and a second AOD that deflects light according to a signal; a first driving unit that rotates the first AOD around axis perpendicular to a first plane including the light on and light from the first AOD; a first prism that is arranged adjacent to an emission end of the first AOD and compensates angular dispersion of the light; a second driving unit that rotates the second AOD around axis perpendicular to a second plane including the light on and light from the second AOD and perpendicular to the first plane; a second prism that is arranged adjacent to an emission end of the second AOD and compensates angular dispersion of the light; and a relay lens that allows the emission end of the first AOD and an incident end of the second AOD to be optically conjugate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.