A high-precision scanning device (1; 1001) comprising: a first linear scanner (11; 1011) for providing scanning movements along a first linear scanning axis (21; 1021), wherein said first linear scanner comprises a first base frame (31; 1031), a first scanning frame (41; 1041), two mutually parallel first piezoelectric bending plates (51A, 51B; 1051A, 1051B), and two first hinge joints (61A, 61B; 1061A, 1061B) having two mutually parallel first hinge axes (71A, 71B; 1071A, 1071B), respectively, and wherein: - said first linear scanning axis is orthogonal to said first piezoelectric bending plates as seen in unbent, straight conditions of said first piezoelectric bending plates; - said two mutually parallel first hinge axes are parallel to local bending axes about which said first piezoelectric bending plates are locally bending when piezoelectrically operated; - the two first piezoelectric bending plates have two mutually parallel first immovable plate portions (81A, 81B; 1081A, 1081B), respectively, which are immoveably connected relative to the first base frame; - the two first piezoelectric bending plates have two mutually parallel first moveable plate portions (91A, 91B; 1091A, 1091B), respectively, which are moveable relative to the first base frame in accordance with said locally bending of said first piezoelectric bending plates; - the two first hinge joints are hingingly connecting the first scanning frame to the two first moveable plate portions, respectively, whereby the first scanning frame is forming a hingeable bridge between the two first piezoelectric bending plates; - under influence of synchronic piezoelectric operation of the two first piezoelectric bending plates, the two first moveable plate portions together with the first scanning frame are being synchronically moved relative to the first base frame along said first linear scanning axis, while at the same time the two first immovable plate portions remain immoveably connected relative to the first base frame. a first linear scanner (11; 1011) for providing scanning movements along a first linear scanning axis (21; 1021), wherein said first linear scanner comprises a first base frame (31; 1031), a first scanning frame (41; 1041), two mutually parallel first piezoelectric bending plates (51A, 51B; 1051A, 1051B), and two first hinge joints (61A, 61B; 1061A, 1061B) having two mutually parallel first hinge axes (71A, 71B; 1071A, 1071B), respectively, and wherein: - said first linear scanning axis is orthogonal to said first piezoelectric bending plates as seen in unbent, straight conditions of said first piezoelectric bending plates; - said two mutually parallel first hinge axes are parallel to local bending axes about which said first piezoelectric bending plates are locally bending when piezoelectrically operated; - the two first piezoelectric bending plates have two mutually parallel first immovable plate portions (81A, 81B; 1081A, 1081B), respectively, which are immoveably connected relative to the first base frame; - the two first piezoelectric bending plates have two mutually parallel first moveable plate portions (91A, 91B; 1091A, 1091B), respectively, which are moveable relative to the first base frame in accordance with said locally bending of said first piezoelectric bending plates; - the two first hinge joints are hingingly connecting the first scanning frame to the two first moveable plate portions, respectively, whereby the first scanning frame is forming a hingeable bridge between the two first piezoelectric bending plates; - under influence of synchronic piezoelectric operation of the two first piezoelectric bending plates, the two first moveable plate portions together with the first scanning frame are being synchronically moved relative to the first base frame along said first linear scanning axis, while at the same time the two first immovable plate portions remain immoveably connected relative to the first base frame. - said first linear scanning axis is orthogonal to said first piezoelectric bending plates as seen in unbent, straight conditions of said first piezoelectric bending plates; - said two mutually parallel first hinge axes are parallel to local bending axes about which said first piezoelectric bending plates are locally bending when piezoelectrically operated; - the two first piezoelectric bending plates have two mutually parallel first immovable plate portions (81A, 81B; 1081A, 1081B), respectively, which are immoveably connected relative to the first base frame; - the two first piezoelectric bending plates have two mutually parallel first moveable plate portions (91A, 91B; 1091A, 1091B), respectively, which are moveable relative to the first base frame in accordance with said locally bending of said first piezoelectric bending plates; - the two first hinge joints are hingingly connecting the first scanning frame to the two first moveable plate portions, respectively, whereby the first scanning frame is forming a hingeable bridge between the two first piezoelectric bending plates; - under influence of synchronic piezoelectric operation of the two first piezoelectric bending plates, the two first moveable plate portions together with the first scanning frame are being synchronically moved relative to the first base frame along said first linear scanning axis, while at the same time the two first immovable plate portions remain immoveably connected relative to the first base frame.