| 摘要 |
In order to align the optical components of a projection apparatus ( 1 ), more particularly a rear projection apparatus of a projection wall, wherein the projection apparatus ( 1 ) comprises a light mixing rod ( 8 ), it is proposed to arrange an alignment deflecting mirror ( 19 ) in the illumination path of the imaging device ( 11 ) between the lamp ( 3 ) and the light mixing rod ( 8 ), wherein said alignment deflecting mirror ( 19 ) can be adjusted by means of servo motors ( 23 ).
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