Class / Patent application number | Description | Number of patent applications / Date published |
359213100 | Oscillating reflective element | 55 |
20090174922 | LIGHT DEFLECTING METHOD AND APPARATUS EFFICIENTLY USING A FLOATING MIRROR - Method of deflecting light includes the steps of providing a substrate and forming a supporting member on the substrate. Next forming step forms electrodes at predetermined positions on the substrate. Next forming step forms a plate-like-shaped thin film member including light reflecting means. Placing step places the plate-like-shaped thin film member on the supporting member so that an opposite surface thereof faces the electrodes. Forming step forms space regulating members on edges of the substrate for regulating a space formed above the substrate in which the plate-like-shaped thin film member is freely movable. Applying step applies predetermined voltages to the electrodes to change a tilt direction of the plate-like-shaped thin film member in accordance with the voltages applied to deflect the input light in an arbitrary direction. Disclosure also describes light deflecting apparatuses, light deflecting array apparatuses, image forming apparatuses, image projection display apparatuses, and optical data transmission apparatuses. | 07-09-2009 |
20090237765 | OPTICAL ARRANGEMENT FOR THE PRODUCTION OF A LIGHT-SHEET - The invention is directed to an optical arrangement with a light source for emitting a light bundle and with optical elements for transforming this light bundle into the shape of a light sheet, particularly suitable for illuminating individual planes of a three-dimensional specimen in selective plane illumination microscopy (SPIM). According to the invention, means are provided for varying the cross section of the light sheet, for varying the length of the light sheet and/or for influencing the direction in which individual beam components extending within the light sheet are directed to the specimen substance. This makes it possible to adapt the geometry of the light sheet to the illumination requirements for observing one and the same specimen plane with a plurality of different objectives and, if required, to reduce shadows occurring within the observed specimen plane as a result of the illumination. | 09-24-2009 |
20090262409 | ACTUATOR, OPTICAL SCANNER, AND IMAGE FORMING APPARATUS - An actuator includes: a first vibration system including a driving member having a frame shape, and a pair of first axial members each one end of which supports the driving member so as to allow the driving member to rotate about an X-axis; a second vibration system including a movable plate provided inside the driving member, and a pair of second axial members each one end of which supports the movable plate so as to allow the movable plate to rotate about a Y-axis perpendicular to the X-axis; a driving unit including a ferromagnetic member, a coil generating a magnetic field on the ferromagnetic; and a positioning portion that places the ferromagnetic member or the coil symmetrical with respect to an intersection point of the X and Y-axes. | 10-22-2009 |
20100097681 | MICROMECHANICAL ELEMENT AND SENSOR FOR MONITORING A MICROMECHANICAL ELEMENT - A micromechanical element includes a movable functional element, a first retaining element, a second retaining element, a third retaining element, and a fourth retaining element. The first retaining element and the functional element are connected at a first junction, the second retaining element and the functional element are connected at a second junction, the third retaining element and the functional element are connected at a third junction, and the fourth retaining element and the functional element are connected at a fourth junction. In addition, the first retaining element and the second retaining element each include a piezoelectric driving element, the driving element of the first retaining element and the driving element of the second retaining element being configured to move the functional element in accordance with electric excitation. | 04-22-2010 |
20100118369 | Optical scanning device, image display device and retinal scanning display - An optical scanning device includes an optical scanning element which has a reflection mirror and is configured to perform reciprocating scanning of an optical flux radiated from a light source by resonance oscillations of the reflection mirror; a photo detector which is arranged at a position which a portion of the optical flux scanned by the optical scanning element in a reciprocating manner passes in both outgoing-path scanning and incoming-path scanning, and is configured to output a pulse signal having a predetermined width at a point of time that the scanned optical flux is detected; and the reference signal generator which is configured to detect timing between rising edge timing of one pulse signal and falling edge timing of the other pulse signal out of two pulse signals continuously outputted from the photo detector, and to generate the reference signal based on intermediate timing between the edge timings. | 05-13-2010 |
20100177369 | OSCILLATOR DEVICE, OPTICAL DEFLECTOR AND OPTICAL INSTRUMENT USING THE SAME - An oscillator device includes a supporting base plate, a torsion spring, and a movable member, wherein the movable member is supported by the torsion spring, for torsional oscillation relative to the supporting base plate about a torsional axis, wherein the torsion spring has an X-shaped section being perpendicular to the torsional axis and a top surface and a bottom surface each being defined by a (100)-equivalent surface of monocrystal silicon, and wherein a distance L1connecting bottoms of concavities formed at the top surface and bottom surface, respectively, and a distance L2 connecting bottoms of concavities defined at side surfaces of the X-shaped torsion spring as well as a rate of change αi of inertia moment of the movable member around the torsion axis, with a change of a thickness t of the supporting base plate, satisfy the following relation: L1/L2=C1−Exp{C2−(α | 07-15-2010 |
20100195181 | OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS - A disclosed optical scanning device includes a light beam generating unit configured to generate a light beam; a light beam deflecting unit configured to receive the light beam and deflect/emit the light beam with a deflecting mirror; a light beam ON/OFF control unit configured to control the light beam generating unit so that the light beam deflected by the light beam deflecting unit is turned ON/OFF in a particular light beam scanning region while the light beam is being reciprocally scanned; and a light beam scanning time measuring unit configured to obtain a measurement value by measuring a time at which the light beam passes a reference point provided on an edge part of the entire light beam scanning region that is away from a center part of the entire light beam scanning region. Timings at which the light beam is turned ON/OFF are controlled in accordance with the measurement value. | 08-05-2010 |
20100214639 | OPTICAL TOMOGRAPHY SYSTEM WITH HIGH-SPEED SCANNER - An object of interest is illuminated within the field of view of a microscope objective lens located to receive light passing through the object of interest. Light transmitted through the microscope objective lens impinges upon a variable power element. The variable power element is driven with respect to the microscope objective lens to scan through multiple focal planes in the object of interest. Light transmitted from the variable power element is sensed by a sensing element or array. | 08-26-2010 |
20100271680 | OSCILLATOR DEVICE, OPTICAL DEFLECTOR AND IMAGE FORMING APPARATUS USING THE OPTICAL DEFLECTOR - An oscillator device includes an oscillation system having a first oscillator, a second oscillator, a first resilient supporting member and a second resilient supporting member, wherein the oscillation system has at least two frequencies of natural oscillation mode around the torsion axis which include a first resonance frequency f | 10-28-2010 |
20100302612 | OSCILLATING STRUCTURE AND OSCILLATOR DEVICE USING THE SAME - An oscillating structure includes a supporting member, a first oscillating member, second oscillating member, a first resilient supporting member configured to connect the supporting member and the first oscillating member and to support the first oscillating member for oscillatory motion around the supporting member as a central axis, and a second resilient supporting member configured to connect the first oscillating member and the second oscillating member and to support the second oscillating member movably relative to the first oscillating member, wherein the direction in which the first resilient supporting member extends from the supporting member to the first oscillating member and the direction in which the second resilient supporting member extends from the first oscillating member to the second oscillating member are opposite to each other. | 12-02-2010 |
20100309537 | Scanning Optical System, Optical Scanning Device, and Image forming Device - A scanning optical system is provided with a light source device ( | 12-09-2010 |
20110013249 | MICRO ELECTRO-MECHANICAL SYSTEM (MEMS) BASED HIGH DEFINITION MICRO-PROJECTORS - In one aspect, a system for facilitating short depth projection is shown and described. In brief overview, the system comprises a MEMS scanner that produces a ray of light in communication with an illumination source. An oscillating micromirror receives the ray of light from the illumination source and reflects the ray to one or more points on a curved reflective surface. The micromirror comprises a silicon mirror reinforced by a high-stiffness material. The system further comprises a screen on which the curved reflective surface projects the ray of light received from the micromirror. | 01-20-2011 |
20110019256 | METHOD OF MANUFACTURING OSCILLATOR DEVICE, AND OPTICAL DEFLECTOR AND OPTICAL INSTRUMENT WITH OSCILLATOR DEVICE BASED ON IT - A method of manufacturing an oscillator device having an oscillator supported relative to a fixed member by a torsion spring for oscillation around a torsion axis and arranged to be driven at a resonance frequency, which method includes a first step for determining an assumed value of an inertia moment weight of the oscillator, a second step for measuring the resonance frequency, a third step for calculating a spring constant of the torsion spring, from the assumed value of the inertia moment weight and the measured resonance frequency obtained at said first and second steps, a fourth step for calculating an adjustment amount for the inertia moment of the oscillator or for the spring constant of the torsion spring, based on the spring constant calculated at said third step and a target resonance frequency determined with respect to the resonance frequency of the oscillator, so as to adjust the resonance frequency to the target resonance frequency, and a fifth step for adjusting the resonance frequency of the oscillator to the target resonance frequency based on the calculated adjustment amount. | 01-27-2011 |
20110109951 | METHOD AND DEVICE FOR MONITORING MOVEMENT OF MIRRORS IN A MEMS DEVICE - A method for monitoring movement of at least one moving mirror in a MEMS device comprising one or more moving mirrors, and wherein the monitoring is based upon capacitance changes over time in the MEMS device. The method comprises the steps of: if the at least one moving mirror is an in-plain mirror, then: a. providing DC voltage to the MEMS device in addition to a driving voltage required for the movement of that at least one moving mirror; b. measuring current proportional to capacitance changes associated with the movement of the at least one moving mirror; and c. monitoring the movement of the at least one moving mirror based on the measured current. If the at least one moving mirror is a staggered mirror, then: d. measuring a current associated with the movement of the at least one moving mirror; e. identifying a plurality of ripples associated with capacitance changes in the MEMS device over time, in the measured current; and f. monitoring the movement of the at least one moving mirror based on the identified plurality of ripples. | 05-12-2011 |
20110170156 | OPTICAL SCANNING DEVICE, IMAGE DISPLAY DEVICE AND METHOD OF DRIVING OPTICAL SCANNING DEVICE - An optical scanning device includes: a reflection part which is configured to scan a light beam by swinging; a drive part which is configured to generate a drive waveform for swinging the reflection part; a waveform information storage part which is configured to store a plurality of waveform informations used for the generation of the drive waveform; a drive waveform setting part which is configured to select one waveform information from the plurality of waveform informations, and is configured to set the drive waveform; and a detection part which detects an amount of ringing which is superimposed on swinging of the reflection part, wherein the drive waveform setting part sequentially supplies the plurality of waveform informations stored in the waveform information storage part to the drive part, and selects the waveform information with which the amount of ringing detected by the detector becomes smaller than a predetermined value. | 07-14-2011 |
20110181931 | MEMS DEVICE COMPRISING OSCILLATIONS MEASUREMENTS MEANS - A MEMS apparatus is provided for scanning an optical beam which comprises: a. at least one mirror operative to perform am oscillation motion to a pre-defined rotation angle around a mirror rotation axis; b. a sound sensing means; and c. a conversion means operative to convert sound vibrations detected by the sound sensing means into one or more electrical signals, and wherein the sound sensing means is located at the vicinity of the at least one mirror whereby the movement of the at least one mirror sensed by the sound sensing means and converted by the conversion means into the one or more electrical signals characterizing the oscillating motion of the at least one mirror. | 07-28-2011 |
20120008185 | LIGHT BEAM SCANNING DEVICE - An optical scanning device, having: a substrate main body; two cantilever beams protruded from the respective side portion of one side of the main body; a mirror supported by torsion bars from the respective side, between the beams; a drive source to causes the main body to vibrate; and a light source to project light onto the mirror, wherein a fixed end of the main body is fixed to a supporting member, on the opposite side from the mirror side, wherein the drive source is provided on a part of the main body, and wherein the mirror resonantly vibrates according to vibration applied to the substrate by the drive source, thereby to change a direction of reflection light of the light projected onto the mirror according to the vibration of the mirror, characterized in that a plurality of holes are provided in the main body and the beams. | 01-12-2012 |
20120044555 | VIBRATION-ACTUATED MICRO MIRROR DEVICE - The present invention provides a vibration-actuated micro mirror device comprising a substrate having a swinging frame and a reflection mirror, and a vibration part having a first and a second vibration structures coupled to the substrate, wherein the first vibration structure is driven to generate a first complex wave formed by a first and a second wave signals while the second vibration structure is driven to generate a second complex wave formed by a third and a fourth wave signals, and the first and the third wave signals are formed with the same frequency and phase while the second and the fourth wave signals are formed with the same frequency but opposite phases. The first and the second complex waves actuate the substrate such that the swinging frame is rotated about a first axis while the reflection mirror is rotated about a second axis. | 02-23-2012 |
20120188625 | MICROMECHANICAL DEVICE WITH TEMPERATURE STABILIZATION AND METHOD FOR ADJUSTING A DEFINED TEMPERATURE OR A DEFINED TEMPERATURE COURSE ON A MICROMECHANICAL DEVICE - A micromechanical device includes a micromechanical functional structure and an electromagnetic radiation heating associated with the micromechanical functional structure, which is formed to cause a spatially and temporally defined temperature or a spatially and temporally defined temperature course in the micromechanical functional structure. | 07-26-2012 |
20120250130 | PIEZOELECTRIC ACTUATOR, VARIABLE CAPACITOR, AND OPTICAL DEFLECTION DEVICE - A piezoelectric actuator of the presently disclosed subject matter can include: a first actuator including a first piezoelectric driving part; and a second actuator including a second piezoelectric driving part. A central portion of the first actuator can be supported. The first actuator can be bent and deformed by applying a first driving voltage to the first piezoelectric driving part, so that both end portions of the first actuator can be displaced in a thickness direction of the first actuator. Both end portions of the second actuator can be coupled to the both end portions of the first actuator. The second actuator can be bent and deformed in the opposite direction to the first actuator by applying a second driving voltage to the second piezoelectric driving part, so that a central portion of the second actuator can be displaced in a thickness direction of the second actuator. | 10-04-2012 |
20130107339 | OPTICAL REFLECTION ELEMENT | 05-02-2013 |
20130242366 | AUSGASAMER RESONATOR - The invention relates to an optical resonator made of low-outgassing materials, comprised of at least one chamber, a non-linear crystal arranged in the chamber, and an array of mirrors arranged in the chamber and comprised of a plurality of mirrors for deflecting a light beam. To specify such a resonator which is low-outgassing and which ensures fine adjustment of the optical elements at the same time, the present invention proposes that the non-linear crystal and at least one mirror of the array of mirrors is arranged on one movable carrier each, wherein the said carrier is fabricated from a low-outgassing material and seals the chamber. | 09-19-2013 |
20140049804 | MIRROR DEVICE - A mirror apparatus includes beams that support a mirror portion therebetween, the mirror portion having a mirror on a surface thereof, and drives the beams in a torsional direction to cause the mirror portion to oscillate at a predetermined resonance frequency, wherein thermally deformable materials that deform due to heating are provided on surfaces of the beams, and a spring constant of the beams is adjusted such that thermal deformations of the thermally deformable materials cause the mirror portion to oscillate at the predetermined resonance frequency. | 02-20-2014 |
20140333979 | LASER SCANNING DEVICE AND CONTROL METHOD THEREOF - A laser scanning device and a control method thereof are provided. The method includes: providing a control signal to an oscillating reflective mirror of the device; setting a frequency of the control signal gradually decreased from a maximal-setting-value of a resonant frequency of the mirror; judging whether a light detector receives a laser light reflected by the mirror according to an edge signal of the detector; judging whether a pulse width of the edge signal is equal to a predetermined pulse width when the detector receives the laser light: (1) increasing the frequency of the control signal when the pulse width of the edge signal is greater than the predetermined pulse width, (2) decreasing the frequency of the control signal when the pulse width of the edge signal is less than the predetermined pulse width. The time and labor for measuring the scanning frequency of the mirror may be saved. | 11-13-2014 |
20150049374 | MICROMIRROR SYSTEM AND METHOD OF MANUFACTURING A MICROMIRROR SYSTEM - A micromirror system that includes a chip frame, at least one spring element, and at least one mirror plate oscillatorily suspended in the chip frame via the at least one spring element. The chip frame and the at least one spring element include at least one microchannel which is provided with an inlet opening and an outlet opening for leading through a flowing coolant. | 02-19-2015 |
20150092257 | LASER SCANNING DEVICE AND CALIBRATION METHOD THEREOF - A laser scanning device and a calibration method thereof are provided. The laser scanning device includes a light-emitting element, an oscillating reflective element, a light receiving element and a micro processing unit. The oscillating reflective element is configured to swing back and forth in an adjustable oscillation frequency, such that laser beams emitted from the light-emitting element are reflected to a predetermined scan region. When a swing angle of the oscillating reflective element is affected by a change of the environment temperature, an oscillation frequency of the laser scanning device is directly changed corresponding to the current environment temperature by the micro processing unit such that the oscillating reflective element correctly swings in a predetermined angle range. | 04-02-2015 |
20150138616 | LASER SCANNER APPARATUS - The present invention relates to a reactionless, constant scanning velocity laser scanner having a scanning mirror and a counter-rotating mass trading kinetic energy as the mirror collides with the counter rotating mass rotating in opposite direction to reverse the direction of rotation of the mirror. The scanning mirror is rotatably mounted in a frame and spaced from a rotatably mounted counterweight such that in each direction of rotation the mirror will collide with the counterweight moving in the opposite direction of rotation. The counterweight has spring means thereon positioned to bump against the mirror in one direction and then the other direction of rotation to repel the mirror to cause a back and forth scanning motion in the mirror. The counterweight is moved by an actuator which replaces energy lost during scanning. | 05-21-2015 |
20150338646 | OPTICAL SCANNING OBSERVATION APPARATUS - An optical scanning observation apparatus ( | 11-26-2015 |
20160054577 | MICRO-PROJECTION DEVICE WITH ANTI-SPECKLE VIBRATION MODE - A micro-projection system for projecting light on a projection surface, comprising: at least one coherent light source ( | 02-25-2016 |
20160116733 | OPTICAL SCANNER APPARATUS - An optical scanner apparatus that oscillates a mirror to scan incident light, includes an optical scanner unit that includes a sensor that detects an oscillation angle of the mirror, and an interconnect connected to the sensor; and a shading unit that shades the sensor and the interconnect from stray light of the incident light and ambient light. | 04-28-2016 |
359214100 | Single plane mirror | 25 |
20090051997 | LASER RADAR AND BEAM IRRADIATION APPARATUS THEREFOR - A laser radar according to an embodiment of the invention includes a beam irradiation head which emits a laser beam and a control circuit which controls the beam irradiation head to perform scan in a two-dimensional direction with the laser beam. In the laser radar, the beam irradiation head includes a laser beam source; a mirror to which the laser beam emitted from the laser beam source is incident; and a driving mechanism which rotates the mirror in first and second directions about a first rotating axis and a second rotating axis perpendicular to the first rotating axis respectively. The control circuit controls the rotation of the mirror in the first direction and the second direction such that a scan region of the laser beam becomes a rectangular shape. | 02-26-2009 |
20090097091 | Sloped Cantilever Beam Electrode for a MEMS Device - A method of tilting a micromirror includes providing a substrate, a sloped electrode outwardly from the substrate, and a sloped electrode positioning system outwardly from the substrate. The method also includes applying, by the sloped electrode positioning system, forces sufficient to position the sloped electrode in an orientation that slopes away from the substrate. | 04-16-2009 |
20090168134 | IMAGE DISPLAY APPARATUS - An image display apparatus includes a laser light source that emits laser light, a focusing optical system that focuses the laser light emitted from the laser light source, a scanner that scans the light that has exited from the focusing optical system to form an intermediate image, a divergent angle converter on which the intermediate image is formed, the divergent angle converter enlarging the divergent angle of the incident laser light and outputting the laser light with the enlarged divergent angle, and a projection element that projects the laser light that has exited from the divergent angle converter toward a surface on which the laser light is projected. The focusing optical system focuses the laser light onto the divergent angle converter. | 07-02-2009 |
20090251754 | LIGHT SCANNING UNIT, IMAGE FORMING APPARATUS EMPLOYING THE SAME AND LIGHT SCANNING METHOD - A light scanning unit including a light source unit emitting a collimated light beam, and a beam deflector deflecting and scanning the collimated light beam and having a mirror surface that oscillates, a light scanning method and an image forming apparatus employing the light scanning unit are disclosed. The light source unit may be made to oscillate synchronously with the oscillation of the beam deflector so that the incident angle of the collimated light beam on the beam deflector changes in synchronization with the oscillation of the beam deflector, thereby allowing an increase of the maximum deflection angle of the light beam deflected and scanned by the beam deflector. | 10-08-2009 |
20090303563 | Method for Structuring a Device Layer of a Substrate - Method for structuring a device layer of a substrate, wherein the substrate includes a carrier layer, the device layer and an intermediate layer disposed between the carrier layer and the device layer. Thereby, the intermediate layer is structured for exposing, at least in one portion, a first surface of the carrier layer facing the device layer. Starting from a second surface of the carrier layer opposing the first surface, the thickness of the device layer is reduced to a predetermined thickness at those positions where the intermediate layer is removed. | 12-10-2009 |
20090310200 | ELECTROSTATIC ACTUATOR - An electrostatic actuator is provided with a movable part, and a connector. The movable part is in the form of a plate and is swingable around a swing axis which is parallel to the flat surface of the plate. The connector supports the movable part such that the movable part is swingable around the swing axis. The connector has a keeper that extends from the connector in a direction parallel to the swing axis. The movable part has a reflecting surface which reflects light and a rear surface which is the rear of the reflecting surface. The keeper supports the rear surface. | 12-17-2009 |
20090310201 | ELECTROSTATIC ACTUATOR - An electrostatic actuator as provided having a movable part, a supporter, a first connector, a second connector, first and second connector electrodes, and first and second supporter electrodes. The first and second connector electrodes project respectively from the first and second connectors towards the supporter, and are provided so as to be asymmetrical with respect to a line or a surface passing through the center of mass of the movable part, and which are perpendicular to the first axis. The first and second supporter electrodes project respectively from the supporter towards the first and second connectors, and that are provided so as to be asymmetrical with respect to a line and a surface which pass through the center of mass of the movable part and which are perpendicular to the first axis. | 12-17-2009 |
20100118370 | OSCILLATING BODY APPARATUS AND MANUFACTURING METHOD THEREOF, OPTICAL DEFLECTOR AND IMAGE FORMING APPARATUS - An oscillating body apparatus comprises an oscillating plate oscillatably supported around a torsion axis by a support portion for a fixing portion and driving the oscillating plate around the torsion axis by a resonance frequency, the oscillating plate having a region forming a groove portion for adjusting a mass of the oscillating plate, and, the resonance frequency being configured to be adjustable by the formation of the groove portion in the region. | 05-13-2010 |
20100177370 | Piezoelectric transducer element, actuator, sensor, optical scanning device, and optical scanning display device - In a piezoelectric transducer element, on a base body having a fixing part and a movable part which are connected with each other, a piezoelectric body which is sandwiched between a lower electrode and an upper electrode is formed in a state where the piezoelectric body extends between and over the fixing part and the movable part of the base body. The piezoelectric body converts a change in potential between the lower electrode and the upper electrode into mechanical displacement of the movable part relative to the fixing part or the mechanical displacement into the change in potential. The upper electrode includes a pad electrode for connection which is formed above the fixing part, and the lower electrode is not formed in a region above the fixing part and below the pad electrode. | 07-15-2010 |
20100277783 | MICRO SCANNER DEVICE AND METHOD FOR CONTROLLING MICRO SCANNER DEVICE - A mirror axis (MA) is displaced by deformation of a holder (HD) and with resonance of an optical scanner (LS) itself according to the frequency of a voltage applied to a piezoelectric element (PE). The frequency of the applied voltage for causing a resonance deforms the holder (HD) so as to generate at least one node intersecting with respect to the length of the holder (HD) itself. | 11-04-2010 |
20110205612 | Magnetically Actuated System - A magnetically actuated system includes a conductor and a magnetic field apparatus to generate a magnetic field. The magnetic field apparatus includes magnets and magnetically permeable materials to focus the magnetic field in areas of the conductor that produce a drive torque when the conductor carries a current. | 08-25-2011 |
20120044556 | OPTICAL SCANNING APPARATUS - An optical scanning apparatus includes a laser source configured to irradiate a laser beam, a prism configured to reflect the laser beam irradiated from the laser source, a mirror configured to move the laser beam reflected from the prism by oscillating with respect to a predetermined axis and reflecting the laser beam reflected from the prism, the laser beam reflected from the prism being substantially perpendicular to a plane of the mirror in a case where the mirror is in a non-oscillating state, a waveplate positioned between the prism and the mirror and configured to polarize the laser beam reflected from the prism and the laser beam reflected from the mirror. The waveplate includes an end plane inclined with respect to the laser beam reflected from the prism to the mirror. | 02-23-2012 |
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 |
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 |
20120320439 | OPTICAL REFLECTION ELEMENT - An optical reflection element has a frame, a pair of meandering-shaped vibration elements, a mirror having a reflection surface, and a pair of protective beams. The vibration elements have their respective outer ends supported by confronting portions of an inside of the frame. The vibration elements support the mirror with respective inner ends thereof. The protective beams extend from the respective confronting portions of the inside of the frame toward the mirror with a predetermined space from the vibration elements and in parallel with a vibration axis of the vibration elements. | 12-20-2012 |
20130250388 | SCANNING IMAGE PROJECTOR AND METHOD OF DRIVING SCANNING IMAGE PROJECTOR - A scanning image projector includes a laser light source, an MEMS scanner having a reflecting mirror which vibrates around first and second axes that are orthogonal to each other, and an MEMS control unit having a high speed drive circuit which causes resonant vibration of the reflecting mirror at high speed around the first axis, a low speed drive circuit which causes non-resonant vibration of the reflecting mirror at low speed around the second axis, and an offset drive circuit which offsets a position on the second axis in a non-resonant vibration region where the low-speed vibration is caused by a predetermined amount, wherein the MEMS control unit displays an image in a predetermined display region by drive signals from the high and the low speed drive circuits, and moves a position of the display region in the non-resonant vibration region by an offset signal from the offset drive circuit. | 09-26-2013 |
20140153073 | IMAGE PROJECTION METHOD AND MEMS IMAGE PROJECTION APPARATUS - An image projection method and a microelectromechanical system (MEMS) image projection apparatus are provided. The image projection method controls a MEMS scanning mirror swinging around a first swing axis to project an image light beam. The image projection method includes following steps. A resonance frequency and a damping coefficient of the MEMS scanning mirror at swinging are measured to calculate a first amplitude scale and a first maintaining period, and a periodic wave signal is generated accordingly. The periodic wave signal is output to the MEMS scanning mirror for controlling the MEMS scanning mirror to swing, and a swing speed error thereof is recorded. By adjusting the first amplitude scale and the first maintaining period, the periodic wave signal is also adjusted, and the corresponding swing speed error is recorded. According to the recorded swing speed errors, the corrected periodic wave signal is generated for controlling the MEMS scanning mirror. | 06-05-2014 |
20140168738 | PROJECTION CONTROLLING METHOD AND MEMS PROJECTION APPARATUS - A projection controlling method for controlling a MEMS scanning mirror to repeatedly scan an image light on a surface and form a projection image is provided. A resonance frequency of the MEMS scanning minor which swings around a first swing axis is detected and provided to a filter unit as a parameter of a filtering process. A first periodic control signal with a first frequency and a plurality of harmonic components is generated. The harmonic component with the resonance frequency is filtered from the first periodic control signal by the filter unit. The filtered first periodic control signal is provided to the MEMS scanning mirror to control the MEMS scanning mirror to swing around the first swing axis according to the first frequency and to scan the image light on the surface back and forth along a first direction. A MEMS projection apparatus is also provided. | 06-19-2014 |
20150055204 | OPTICAL SCANNING UNIT, AND APPARATUS INCLUDING THE OPTICAL SCANNING UNIT - An optical scanning unit includes a light source, an optical deflector that includes a light transmission window disposed on a light path from the light source and a rotatable mirror that includes a reflecting surface to reflect light that goes through the light transmission window into the light transmission window and to deflect the light from the light source toward a surface, and a light shield disposed on a light path of reflected light of the light from the light source reflected by a surface of the light transmission window. | 02-26-2015 |
20150109649 | LIGHT SCANNING METHOD AND LIGHT SCANNING UNIT - In a light scanning method of scanning a light beam emitted from a light source on a plane to be scanned, a focal distance of an optical element that converges light emitted from the light source onto the plane to be scanned is sequentially varied to uniform a beam spot diameter at each position on the plane to be scanned where a distance from the light source varies. | 04-23-2015 |
20150333478 | A LASER DRIVER AND METHOD OF OPERATING A LASER - According to the present invention there is provided a method of operating a laser comprising the steps of; defining an intensity value (K | 11-19-2015 |
20150355458 | MICRO-MACHINED OPTICAL MIRROR SWITCH - The present disclosure provides a micro-machined switchable optical mirror device with a fast response speed. The mirror device includes a substrate defining a gap space, and a mirror assembly disposed on the substrate and deflectable in the gap space, the mirror assembly including a free end cantilever and a reflector on the cantilever, wherein the cantilever is anchored on the substrate adjacent a side of the gap space through an elastic member. In one aspect, the mirror device further includes a stop spring at an end of the cantilever opposing the elastic member. | 12-10-2015 |
20150370085 | OPTICAL MEMS SCANNING MICRO-MIRROR WITH ANTI-SPECKLE COVER - Optical MEMS scanning micro-mirror comprising: —a movable scanning micro-mirror ( | 12-24-2015 |
20160124230 | IMAGE DISPLAY DEVICE AND DRAWING METHOD - An image display device includes: a light source section adapted to emit a laser beam; a drawing section adapted to make a mirror reflect the laser beam, and rotate the mirror to draw an image; a display section adapted to reflect the laser beam to form a virtual image; a moving section adapted to move the drawing section and the display section in conjunction with each other; a visual line detection section adapted to detect a visual line of an observer observing the virtual image; and a control section adapted to control the moving section in accordance with a movement of the visual line. | 05-05-2016 |
359215100 | With imaging lens | 1 |
20140368897 | MEMS-BASED RAPIDSCAN DEVICE AND PROJECTOR HAVING SAME - A device projecting images by micro electro-mechanical system (MEMS) technology mirrors includes a base, a rotating seat, a substrate, a reflective mirror, a driver, and a controller. The rotating seat is rotably positioned on the base. The substrate is positioned on the rotating seat. The at least one MEMS reflective mirror is formed on the substrate and configured for rotating in two directions under control of the attached driver and controller to form two-dimensional images in a range. | 12-18-2014 |