| 摘要 |
A suspension system 20 comprises two non-parallel hinged linkages 14, 15. Each linkage allows movement of eg a lens 21 only in the plane perpendicular to the hinges within that linkage. As the two linkages are non-parallel, movement of the lens is constrained to the line of intersection of the two movement planes. The suspension may be used to suspend a lens in a camera to allow movement of the lens along the optic axis for example during focussing or zooming. The suspension may be made as a plastic moulding, possibly integral with the lens barrel, forming a compact suspension suitable for use in a miniature camera, as used for example in portable devices such as mobile phones. Each hinged linkage comprises two link elements 16, 17, 18, 19 and three parallel hinges 111-113, 114-116. Support structure 12, moving piece 13 and lens barrel 22, 36 are shown. The suspension system may be moved using piezoelectric actuator 37. |
