Patent ID: 8014058
Filing Date: 2011-09-06
Classification: G02B,G09G

Abstract:
1. An optical deflecting device array, comprising: a plurality of optical deflecting devices arrayed in one or two dimensions, each including a plate member and an electrode group including a plurality of electrodes, wherein the electrode group is arranged to face the plate member, and each electrode at a same position for each electrode group is wired to have a same electric potential in an entire plurality of optical deflecting devices forming the optical deflecting device array; wherein the optical deflecting device array is driven by a method for driving the optical deflecting device array in that each of the plurality of optical deflecting devices in which a plate member having a light reflection area rotates on a rotation axis or a fulcrum being as a center, and a light deflection operation is conducted by changing a reflection direction of an incoming light flux in that the plate member includes a conductive layer, an electrode is contacted or fixed to the conductive layer to apply the electric potential, and each of the plurality of optical deflecting devices includes the electrode group including the plurality of electrodes arranged to face the plate member, and switching an inclination direction of the plate member due to an electrostatic attraction caused by an electric potential difference between an arbitrary electrode in the electrode group and the electrode applying the electric potential to the conductive layer; wherein an inclination direction of the plate member of an arbitrary optical deflecting device is switched to a first inclination direction or a second inclination direction, and a gradation of each pixel is defined based on a time length of the first inclination direction or the second inclination direction, wherein a switch of the first inclination direction of the plate member of the arbitrary optical deflecting device is conducted by applying an electric potential which satisfies a condition 1, a condition 2, a condition 3, and a condition 4, wherein a switch of the second inclination direction of the plate member of the arbitrary optical deflecting device is conducted by applying an electric potential which satisfies a condition 5, a condition 6, a condition 7, and a condition 8, and wherein: the condition 1 is a condition for selecting an electric potential V the condition 2 is a condition in which an electric potential V the condition 3 is a condition in which an electrostatic attraction F the condition 4 is a condition in which an electrostatic attraction F the condition 5 is a condition for selecting the electric potential V the condition 6 is a condition in which an electric potential V the condition 7 is a condition in which an electrostatic attraction F the condition 8 is a condition in which an electrostatic attraction F