Patent application number | Description | Published |
20120062969 | OPTICAL SCANNER, METHOD OF MANUFACTURING OPTICAL SCANNER, AND IMAGE FORMING APPARATUS - An optical scanner includes: a movable section which has a light reflecting member with a light reflecting surface and which is rotatable around the central axis of rotation; at least a pair of movable beams extending from the movable section along the light reflecting surface; a displacement section which is connected to the movable beams and has a through hole including two fixed surfaces crossing each other; two driving beams which extend from the displacement section along a surface direction of the light reflecting surface so as to be perpendicular to the movable beams; a support section connected to each of the driving beams; a driving section which drives the displacement section; and a permanent magnet which is inserted in the through hole and is fixed to the two fixed surfaces. | 03-15-2012 |
20120086996 | OPTICAL SCANNER, MIRROR CHIP, METHOD OF MANUFACTURING OPTICAL SCANNER, AND IMAGE FORMING APPARATUS - An optical scanner includes: a movable section which includes a light reflecting member with a light reflecting surface and which is rotatable around the central axis of rotation; four movable beams which extend from the movable section along the light reflecting surface and which are provided at angles of 90° along the circumferential direction of the movable section; a displacement section connected to each movable beam; two driving beams extending from the displacement section along the surface direction of the light reflecting surface so as to be perpendicular to the movable beams; a fixed section connected to each driving beam; an inner frame section formed in the displacement section; a permanent magnet fixed to the inner frame section; and a driving section which drives the displacement section. Each movable beam includes a bending section which deforms the moving beam by bending in a direction perpendicular to the light reflecting surface. | 04-12-2012 |
20120120458 | ACTUATOR, MANUFACTURING METHOD OF ACTUATOR, LIGHT SCANNER AND IMAGE FORMING APPARATUS - An actuator includes a light reflection part having light reflectivity, a movable part having the light reflection part and being rotatable around a rotation center axis, a pair of connection parts connected to the movable part, and a support part that supports the pair of connection parts, and each of the connection parts includes a pair of beam members, a distance between the pair of beam members gradually increases from a first surface side toward a second surface side of the movable part when seen from a direction in parallel to the rotation center axis of the movable part, and given that a distance between ends at the first surface side of the pair of beam members is W | 05-17-2012 |
20120243066 | ACTUATOR, OPTICAL SCANNER, AND IMAGE FORMING APPARATUS - An actuator includes: a movable portion that can oscillate around an oscillation axis; a connection portion that extends from the movable portion and is torsionally deformed in accordance with oscillation of the movable portion; and a support portion that supports the connection portion. The movable portion forms a cross shape in a plan view from a thickness direction of the movable portion. | 09-27-2012 |
20120257235 | ACTUATOR, OPTICAL SCANNER, AND IMAGE FORMING APPARATUS - An actuator including a movable portion that swings about a swing axis, a connecting portion that extends from the movable portion and torsionally deforms in response to the swinging of the movable portion, and a support portion that supports the connecting portion, wherein the movable portion is so shaped that the length thereof parallel to the swing axis decreases stepwise with distance from the swing axis in a plan view, and the movable portion, the support portion, and the connecting portion are formed by anisotropically etching a silicon substrate. | 10-11-2012 |
20120257261 | ACTUATOR AND OPTICAL SCANNER - An actuator includes a movable portion which can swing around a swing axis, a connecting portion which extends from the movable portion, and a support portion which supports the connecting portion, wherein the movable portion is formed in a cross shape which includes a pair of first protrusions protruding along a direction perpendicular to the swing axis and a pair of second protrusions protruding along a direction parallel to the swing axis, and when a length of the movable portion in the direction perpendicular to the swing axis is A, a length of the movable portion in the direction parallel to the swing axis is B, a length of the first protrusion in the direction perpendicular to the swing axis is a, and a length of the second protrusion in the direction parallel to the swing axis is b, the following equations (A) and (B) are satisfied. | 10-11-2012 |
20120257268 | ACTUATOR, OPTICAL SCANNER, AND IMAGE FORMING APPARATUS - An actuator includes a movable portion which can twist around an axis, a connecting portion which extends from the movable portion and is torsionally deformed according to the twisting of the movable portion, and a support portion which supports the connecting portion, wherein the movable portion has a cross shape in a plan view, and a cross-sectional width of the connecting portion perpendicular to the axis gradually increases from a first surface of the movable portion toward a second surface of the movable portion opposite the first surface. | 10-11-2012 |
20130033733 | ACTUATOR, LIGHT SCANNER, AND IMAGE FORMING DEVICE - An actuator includes a movable section swinging around a predetermined swing axis, a connecting section extending from the movable section, and being torsionally deformed in accordance with swing of the movable section, a support section supporting the connecting section, a magnet being disposed on a plate surface of the movable section, and a coil generating a magnetic field acting on the magnet to thereby swing the movable section, and the movable section has a cross shape in a plan view. | 02-07-2013 |
20130278985 | OPTICAL SCANNER AND IMAGE FORMING APPARATUS - An optical scanner includes: a movable body that is able to oscillate around a first axis; a first shaft member that is connected to the movable body along the first axis; and a drive unit that includes a permanent magnet, a coil that generates a magnetic field by application of voltage, and a voltage applying section that applies a voltage to the coil and oscillates the movable body around the first axis, wherein the movable body includes a light reflecting plate provided with a light reflecting section having light reflectivity, a support frame that surrounds the light reflecting plate and has a thickness that is, ten times or less, larger than the thickness of the light reflecting plate, and a plurality of connecting sections that connects the light reflecting plate and the support frame at a plurality of locations. | 10-24-2013 |
20130301099 | OPTICAL DEVICE, OPTICAL SCANNER, AND IMAGE DISPLAY DEVICE - An optical scanner is an optical device including a base portion that is rotatable about the Y-axis, a frame portion that is rotatable about the X-axis intersecting the Y-axis, and a shaft portion that supports the base portion so as to be rotatable about the Y-axis with respect to the frame portion. The optical scanner includes a light reflecting plate that is fixed to the base portion and includes a light reflecting portion with a light reflecting property. The frame portion is provided so as to surround the base portion. The shaft portion includes one end connected to the base portion and the other end connected to the frame portion. The light reflecting plate is separated from the shaft portion in the thickness direction of the light reflecting plate and overlaps the shaft portion, as viewed from the thickness direction. | 11-14-2013 |
20130301100 | OPTICAL DEVICE, OPTICAL SCANNER, AND IMAGE DISPLAY DEVICE - An optical scanner includes: a movable portion that includes a base portion and a light reflecting plate which is fixed to the base portion and includes a light reflecting portion with a light reflecting property and is rotatable about the Y-axis; a frame portion that is provided so as to surround the base portion and is rotatable about the X-axis perpendicular to the Y-axis; a shaft portion that supports the movable portion so as to be rotatable about the Y-axis with respect to the frame portion; and a permanent magnet that is provided in the frame portion. The light reflecting plate is provided such that it is separated from the shaft portion in a thickness direction and overlaps the shaft portion, as viewed from the thickness direction. The permanent magnet is fixed to a surface of the frame portion close to the light reflecting plate. | 11-14-2013 |
20140211289 | HEAD-MOUNTED IMAGE DISPLAY APPARATUS - A head-mounted image display apparatus includes: a light source that emits laser light; a splitter that splits the laser light into first laser light and second laser light having a different optical intensity than the first laser light; an image drawing section that causes the first laser light to be reflected off a mirror and causes the mirror to make pivotal motion to perform image drawing; a controller that controls the pivotal motion of the mirror; and a notification section that notifies other persons by diffusing the second laser light that the image drawing section is performing image drawing. | 07-31-2014 |