Abstract: An information terminal includes: a display section that displays an image; a light source that emits light; an optical signal generator that uses the light emitted from the light source to generate an optical signal with which an optical scanner scans an object; a drive signal generator that generates a drive signal for driving the optical scanner; and a switcher that switches the state of the information terminal between a first state in which the display section displays an image, the optical signal generator does not generate the optical signal, and the drive signal generator does not generate the drive signal and a second state in which the optical signal generator generates the optical signal, the drive signal generator generates the drive signal, and the display section displays no image.

Abstract: A head mounted image display device includes: a frame including a front section having a nose pad; a light transmitter supported by the front section and allowing visible light to pass therethrough; an optical scanner that receives signal light modulated according to an image signal and made incident thereon and that two-dimensionally scans the incident signal light toward the light transmitter; a half mirror on a surface on which the signal light from the optical scanner is incident and having a curved surface that reflects the signal light; and a condensing lens on an optical axis between the optical scanner and the half mirror and condensing the signal light from the optical scanner between the optical scanner and the half mirror to convert the signal light reflected by the half mirror into parallel light.

Abstract: An image forming apparatus includes: a projector configured to be capable of projecting light to thereby display an image on a rendering region formed on a display surface set around a guiding point to which a person should be guided and changing a position of the rendering region; a detecting unit that detects whether a person is present in a detection region set near the display surface and detects, when a person is present in the detection region, a moving state of the person; and a control unit that controls, on the basis of a detection result of the detecting unit, driving of the projector to guide the person present in the detection region to the guiding point.

Abstract: 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.

Abstract: 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. 0.8 × { 1 2 ? ( A - 1 3 A 2 + 1 B 2 ) } ? a ? 20 × { 1 2 ? ( A - 1 1 3 ? A 2 + 1 B 2 ) } ( A ) 0.

Abstract: An optical device includes: an axis member including a plate-shaped attachment portion and an elastic support portion that swingably supports the attachment portion around a predetermined axis; a rigid member attached to one side of the attachment portion; and a light reflecting member attached to the other side of the attachment portion and having an area larger than that of the attachment portion.

Abstract: An image display apparatus includes laser light sources, a light combining section that combines laser light from the laser light sources, and an optical scanner that deflects drawing laser light from the light combining section for two-dimensional scanning. The optical axes of the laser light outputted from the laser light sources and directed toward the optical scanner are present in the same plane. Further, the optical scanner has a light reflection surface configured to be perpendicular to the plane when the optical scanner is not driven. The optical scanner deflects the drawing laser light reflected off the light reflection surface for two-dimensional scanning by causing the light reflection surface to swing within the plane and in the direction perpendicular to the plane.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: An optical scanner includes: a light reflecting section having a light reflecting surface; a supporting section supporting the light reflecting section; a movable section supporting the supporting section; at least a pair of movable beams extending from the movable section and disposed in such a way that the movable beams face each other; a displacement section connected to the movable beam; two drive beams each extending from the displacement section; and a supporting frame supporting the drive beams, wherein the movable beams each include a bending section which is bent and deformed in a thickness direction of the supporting frame, and an end on the side of the movable section of the supporting section is fixed in a position more distant from the light reflecting section than an end face on the side of the light reflecting section of the movable section.

Abstract: A light deflecting element includes: a movable plate provided with a light reflecting section having light reflectivity; a support section; a coupling section adapted to couple the movable plate rotatably to the support section; and a magnet disposed on an opposite surface of the movable plate to the light reflecting section, wherein the coupling section has a shape having a width gradually increasing in a direction from a side of the light reflecting section toward a side of the magnet in a cross-sectional view perpendicular to a rotational axis of the movable plate.

Abstract: An actuator includes a mass section; a support section; a coupling section for coupling the mass section rotatably to the support section so as to support the mass section with cantilever structure; and a pair of driving sources including a piezoelectric element for rotating the mass section, wherein the pair of driving sources are provided separately from each other with respect to a central axis of rotation of the mass section, each of the driving sources is provided slidably with respect to the coupling section or the support section, and the actuator is structured such that it causes the pair of piezoelectric elements to expand and contract in phases opposite to each other, so as to rotate at least a part of the coupling section while torsionally deforming the mass section.

Abstract: An optical scanning projector includes: a raster scanning unit that draws an image in a drawing area on a display surface by scanning beams in a first direction on the display surface while scanning beams in a second direction on the display surface that is orthogonal to the first direction; and a vector scanning unit that draws an image by irradiating beams so as to sequentially form segments each connecting two different points positioned on the display surface.

Abstract: An image forming apparatus includes: a first projector that scans light on a first display section to thereby display an image; a second projector that scans the light on a second display section, which is set in a position different from a position of the first display section, to thereby display an image; and a switching section that switches plural states including a first state in which the first projector displays the image on the first display section and a second state in which the second projector displays an image on the second display section.

Abstract: An image forming apparatus includes: a screen having a display surface; and a projector that renders an image by scanning light on the display screen, wherein the screen selects, independently in respective regions of the display surface, a light transmission state in which the light is transmitted and a light diffusion state in which the light is diffused, the screen being configured such that the region where address light is irradiated is in the light diffusion state and the region where the address light is not irradiated is in the light transmission state, and the projector scans the address light on the display surface such that an area of the display surface corresponding to an image displayed on the display surface changes to the light diffusion state.

Abstract: An actuator includes: a first oscillatory system including a frame-shaped driving member and a pair of first axial members holding the driving member from both ends so as to allow the driving member to rotate around an X-axis; a second oscillatory system including a movable plate provided inside the driving member and a pair of second axial members holding the movable plate to the driving member from both ends so as to allow the movable plate to rotate around a Y-axis perpendicular to the X axis; and a driving unit including a permanent magnet provided on the driving member, a coil provided so as to face the permanent magnet, a voltage applying unit applying a voltage to the coil, and the permanent magnet has a relief section to avoid making contact with the movable plate.

Abstract: An actuator, includes: a movable plate; a supporter to support the movable plate; a pair of linking portions to link the movable plate and the supporter so as to allow the movable plate to rotate relative to the supporter; and a piezoelectric element to rotate the movable plate. The piezoelectric element elongated and contracted by an energization twists the pair of linking portions to rotate the movable plate, and each of the pair of the linking portions includes an axial member extending from the movable plate and a returned portion that links the axial member and the supporter and is formed so as to return to a side adjacent to the movable plate.

Abstract: 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.

Abstract: An actuator includes a mass section; a support section; a coupling section for coupling the mass section rotatably to the support section so as to support the mass section with cantilever structure; and a pair of driving sources including a piezoelectric element for rotating the mass section, wherein the pair of driving sources are provided separately from each other with respect to a central axis of rotation of the mass section, each of the driving sources is provided slidably with respect to the coupling section or the support section, and the actuator is structured such that it causes the pair of piezoelectric elements to expand and contract in phases opposite to each other, so as to rotate at least a part of the coupling section while torsionally deforming the mass section.