| Original language | English |
|---|---|
| Patent number | EP2304491 |
| IPC | G02B 27/ 22 A I |
| Priority date | 9/07/09 |
| State | Published - 6 Apr 2011 |
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Research output: Patent
| Original language | English |
|---|---|
| Patent number | EP2304491 |
| IPC | G02B 27/ 22 A I |
| Priority date | 9/07/09 |
| State | Published - 6 Apr 2011 |