| 摘要 |
An optical system ( 10 ) comprises a camera ( 11 ) having an imaging means that in use faces downwardly, and an optical assembly. The optical assembly includes a support ( 14 ) that extends outwardly from the camera ( 11 ) and which has a lumen therethrough to allow transmission of light through the support ( 14 ) to the imaging means of the camera ( 11 ). The assembly further includes an optical unit ( 16 ) mountable to the support ( 14 ) and movable relative thereto towards and away from the imaging means of the camera ( 11 ). The optical unit ( 16 ) includes at least one lens ( 17 ) and a mirror assembly ( 22, 23 ) adapted to reflect at least some light entering the unit ( 16 ) that is at approximately a right angle to the orientation of the camera ( 11 ), through the lens ( 17 ) and into the lumen of the support ( 14 ) to the imaging means. The system ( 10 ) can be mounted to a headpiece worn by a user, such as a surgeon.
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