Class / Patent application number | Description | Number of patent applications / Date published |
359198000 | Particular mount or driver for element | 52 |
20080198433 | MICROSCANNER AND OPTICAL EQUIPMENT WITH THE SAME - An optical scanner including a mirror part for reflecting light, a main axis part for supporting the mirror part in a pivotable manner, and a deformable holding part for holding the main axis part. A torsion bar for converting a deformation of the holding part itself into a deformation in torsion is disposed adjacent to the main axis part and is formed in at least one of the holding part and the mirror part. The deformation in torsion generated in the torsion bar makes the mirror part tilt. | 08-21-2008 |
20080212155 | Optical scanning device and image forming apparatus using the same - An optical scanning device including a light beam emission unit configured to emit a light beam, a main scanning line deflection unit configured to deflect the light beam in a main scanning direction to emit a scanning beam, a scanning lens configured to focus the scanning beam in the main scanning direction and a sub-scanning direction, a reflective optical element configured to deflect the scanning beam, a tilt adjustment unit configured to change a position of the reflective optical element to adjust a tilt of a scanning line of the scanning beam irradiating a target to be irradiated, and a curve adjustment unit configured to bend the reflective optical element to adjust a curve in the scanning line of the scanning beam irradiating the target to be irradiated. | 09-04-2008 |
20080218823 | ACTUATOR, OPTICAL SCANNER AND IMAGE FORMING APPARATUS - An actuator includes: a first vibrating system having a frame-like driving member and a pair of first axis members holding the driving member from both sides so that the driving member is rotatable about an X axis; a second vibrating system having a movable plate provided inside the driving member and a pair of second axis members holding the movable plate on the driving members from both sides so that the movable plate is rotatable about a Y axis orthogonal to the X axis; a driving unit including a permanent magnet provided on the driving member, a coil provided to oppose the permanent magnet and a voltage applying unit applying voltage to the coil; and a spacer sandwiched between the driving member and the permanent magnet so as to form space preventing intervention by the movable plate. The permanent magnet is provided such that a line segment connecting both poles of the permanent magnet inclines, in a plan view of the movable plate, with respect to the X axis and the Y axis. The voltage applying unit includes a voltage generating portion generating a first alternating voltage and a second alternating voltage having different frequencies and a voltage superimposing portion superimposing the first voltage and the second voltage. The voltage superimposed at the voltage superimposing portion is applied to the coil so that the movable plate rotates about the X axis with a frequency of the first voltage and about the Y axis with a frequency of the second voltage. | 09-11-2008 |
20080239431 | MICROMECHANICAL DEVICE OF INCREASED RIGIDITY - A micromechanical device includes a deflectable micromechanical functional structure and a non-rigid biased suspension positioning the micromechanical functional structure in the micromechanical device. | 10-02-2008 |
20080266627 | Non-resonant drive for adaptive trajectory of a scanner system having a MEMS device - Briefly, in accordance with one or more embodiments, a MEMS device for a scanner system may be driven in a non-resonant mode of operation. The drive signal provided to the MEMS device may be tailored to prevent the MEMS device from exhibiting resonance characteristics and to cause the MEMS device to operate non-resonantly. In one or more embodiments, a filter may be used to tailor the frequency components of the drive signal, for example to sufficiently attenuate frequency components at or near the resonant frequency of the drive signal. A direct current signal may be provided to the MEMS device to provide an offset to scanned light beam for example to provide beam steering, and the sweep range and/or sweep frequency may be adjusted for example to steer the scanning field of view off axis from the user pointing axis. | 10-30-2008 |
20080266628 | MEMS device having a drive coil with curved segments - Briefly, in accordance with one or more embodiments, a coil for a MEMS device, and/or a structure on which the coil is disposed, may have one or more linear segments and one or more non-linear segments. One or more of the non-linear segments may be curved to increase a responsiveness of the coil to the magnetic field in which the coil is operating to provide an increased torque on the rotation of the mirror of the MEMS device in response to a drive signal applied to the coil in the presence of the magnetic field. The non-linear coil may have other shapes and may be any arbitrary shape. | 10-30-2008 |
20080266629 | MEMS device of a scanner system having magnetic components disposed opposite to reflectance path - Briefly, in accordance with one or more embodiments, a MEMS device for a scanner system may include one or more magnets disposed on the side of the MEMS die opposite to the reflectance path of the scanning mirror without requiring magnets to be disposed on the side of the die that is the same side of the reflectance path of the scanning mirror. As a result of such an arrangement of the one or more magnets, there is no optical obstruction of the incoming and/or outgoing light beams. Likewise, fewer parts may be required for MEMS device and/or the scanning module, and the assembly process of scanning module may be substantially simplified. | 10-30-2008 |
20080266630 | Suspension for maintaining mirror flatness of a MEMS device in a scanner systenm or the like - Briefly, in accordance with one or more embodiments, a MEMS device may comprise a coil frame having a drive coil disposed thereon and being supported by one or more suspension arms disposed along an axis of the coil frame, and a mirror platform having a mirror disposed thereon. The mirror platform may be coupled to the coil frame at connection points generally disposed along the axis in order to reduce deflection of the mirror platform to reduce stress on the mirror in order to maintain the relative flatness of the mirror surface. Furthermore, the mirror platform may include flexible members disposed near an edge of the mirror platform generally along the axis to isolate the mirror platform and the mirror from warping of the coil frame and twist of the suspension arms to further maintain the relative flatness of the mirror. | 10-30-2008 |
20080278781 | Optical Device With Vibration Compensation - The present invention relates to an optical device, in particular a microscope ( | 11-13-2008 |
20080278782 | METHOD FOR DRIVING OPTICAL DEFLECTING DEVICE ARRAY, OPTICAL DEFLECTING DEVICE ARRAY, OPTICAL DEFLECTING DEVICE, AND IMAGE PROJECTION DISPLAYING APPARATUS - A method for driving an optical deflecting device array is disclosed, including in a series of processes for the light deflection operation, at least, a state of a first stage writing and recording data for indicating an inclination direction of the plate member to incline in a first inclination direction or a second inclination direction, into a semiconductor memory device arranged immediately under or adjacent to each of the plurality of optical deflecting devices; a state of a second stage switching the inclination direction of the plate member of the arbitrary optical deflecting device to the first inclination direction based on an indication of the data, and deflecting light; and a state of a third stage switching the inclination direction of the plate member of the arbitrary optical deflecting device to the second inclination direction based on the indication of the data, and deflecting light. | 11-13-2008 |
20080285101 | LIGHT SCANNING DEVICE AND THRUST-DIRECTION FORCE CANCELING METHOD - In a light scanning technique of reflecting and deflecting incident light by a rotary deflector, a technique to reduce adverse effects of a thrust-direction force generated by air resistance received by a reflection surface of the rotary deflector is provided. | 11-20-2008 |
20080291515 | SCANNING OPTICAL APPARATUS - A scanning optical apparatus includes a deflection element configured to deflect a laser beam emitted from a light source for scanning, a mirror member configured to directly reflect the laser beam deflected by the deflection element toward a surface to be scanned, and an optical box configured to house the deflection element and the mirror member. The optical box includes a bottom plate portion and a sidewall portion that encloses the bottom plate portion. The scanning optical apparatus further includes a plate-shaped connection portion configured to connect an opening surface of the optical box that faces the bottom plate portion from one side to the other side of the sidewall portion. The connection portion is provided at a position where it does not overlap with the mirror member in a direction orthogonal to the bottom plate portion. | 11-27-2008 |
20080297867 | METHOD FOR ADJUSTING DRIVE CHARACTERISTICS OF SCANNER DRIVER OF GALVANOMETRIC SCANNER - A scanner driver of a galvanometric scanner system includes an analog drive circuit; a control unit | 12-04-2008 |
20080304124 | ACTUATOR, OPTICAL SCANNER AND IMAGE FORMING DEVICE - An actuator includes a movable plate having a plate shape, a pair of axial parts that is elastically deformable and supporting the movable plate rotatable, and a tension adjuster adjusting tension on an axial direction of the pair of the axial parts and including a torsional axis that is formed jointly or integrally with one of the axial parts and disposed orthogonally to the axial direction of the axial parts, and a drive source that torsionally deforms the torsional axis, wherein the torsional axis is torsionally deformed through the action of the drive source and a spring constant of the pair of the axial parts is adjusted by adjusting the tension on the pair of the axial parts. | 12-11-2008 |
20080310001 | DEVICES, SYSTEMS AND METHODS FOR ACTUATING A MOVEABLE MINIATURE PLATFORM - An actuatable platform system may include a platform assembly coupled to a support element through a ball-and-socket joint. The system may also include a sensor for determining a position of the platform assembly. | 12-18-2008 |
20080316559 | LASER SCANNING DEVICE AND IMAGE FORMING APPARATUS - A laser scanning device having a light emitting element, an optical element for shaping a laser beam emitted from the light emitting element, a radiator which holds the light emitting element, and a holder to which the radiator and the optical element are fixed. The radiator is planar extending from a flange of the light emitting element. The radiator and the holder are located with a specified space in-between, and resin columns are placed in the specified space. After the radiator holding the light emitting element is positioned in relative the holder in three axial directions, the resin columns are hardened. After the resin columns are hardened, the holder is fixed in a housing. | 12-25-2008 |
20090015891 | Optical systems and methods using large microelectromechanical-systems mirrors - A detector and aperture determine radiation characteristics, including angular direction throughout a specified range, of external articles. Preferably an afocal aperture element enlarges/reduces the article and volume FOR. Mirror(s) along a path between detector and aperture, rotatable about plural axes, make the detector address varying regions. Preferably each mirror is MEMS, exceeding five to thirty microns. The detector “sees” articles throughout the range, at constant magnification. Other aspects rotate magnetically controlled dual-axis MEMS mirrors, each with electrical coils opposed across an axis, and anther magnet whose field interacts with coil-current fields, generating force components: one includes oppositely directed forces, torquing the mirrors; another thrusts mirrors outward from the array rest plane, causing variable “piston”. Alternatively, other forces pull mirror(s) outward—and the second component attracts them inward. Components are adjusted to steer a beam in a desired direction, and wavefronts from adjacent mirrors are in phase for finer diffraction limit. | 01-15-2009 |
20090015892 | OPTICAL SCANNING APPARATUS, CONTROL METHOD THEREOF, AND IMAGE FORMING APPARATUS - The light beam deflection cycle of a rotational polygonal mirror includes first and third sections in which a latent image is not formed, and a second section in which the latent image is formed. A driving signal supply unit supplies a driving signal of a frequency less than the resonance frequency of a resonant driving type mirror to the resonant driving type mirror in the first section. The driving signal supply unit keeps the deflection angle of the resonant driving type mirror at the first target deflection angle in the second section. The driving signal supply unit supplies a driving signal of a frequency less than the resonance frequency of the resonant driving type mirror to the resonant driving type mirror in the third section. The optical scanning apparatus is used in an image forming apparatus. | 01-15-2009 |
20090015893 | Optical Scanning Apparatus and Image Forming Apparatus - A mirror driver drives deflection mirror surfaces into a pivoting action at a frequency belonging to a first drive frequency band in which the high-frequency side of a first resonance frequency band partially overlaps the low-frequency side of a second resonance frequency band, so that the deflection mirror surfaces deflect a light beam. Hence, the deflection angles of light beams change, while canceling out each other the changes of the deflection angles of the light beams deflected by the deflection mirror surfaces owing to changes of resonance characteristics. Because of this, even when the resonance characteristics change, it is possible to stabilize the deflection angle of the light beam deflected by the first deflection mirror surface and further deflected by the second deflection mirror surface. | 01-15-2009 |
20090034038 | OSCILLATING DEVICE, LIGHT DEFLECTOR, AND IMAGE FORMING APPARATUS USING THE LIGHT DEFLECTOR - An oscillating device is disclosed that maintains the flatness of a movable portion during driving. The oscillating device has a supporting portion, a movable portion, a torsion spring connecting the movable portion to the supporting portion in a manner allowing the movable portion to torsionally oscillate about a torsional axis, and a driving unit configured to oscillate the movable portion. The movable portion is made of single-crystal silicon. The principal surface of the movable portion lies in the (110) crystal plane, and the crystal orientation of the movable portion parallel to the principal surface and perpendicular to the torsional axis is the [111] orientation. | 02-05-2009 |
20090046341 | SCANNING OPTICAL SYSTEM ADJUSTING DEVICE AND SCANNING OPTICAL SYSTEM ADJUSTING METHOD - As a light beam of a scanning optical system unit is adjusted in the state where the scanning optical system unit is assembled, its adjustment work and the assembly work of the scanning optical system are prevented from being useless. Thus, a scanning optical system adjusting device which can adjust the scanning optical system quickly and at a low cost is to be provided. A scanning optical system adjusting device according to the invention includes a static angle control unit configured to maintain a rotation angle of a rotary polygon mirror in the assembly unit of the scanning optical system at a predetermined angle and make the rotary polygon mirror static there, and a light beam parameter measuring unit configured to measure a predetermined parameter of a light beam reflected by the rotary polygon mirror maintained at the predetermined angle by the static angle control unit. | 02-19-2009 |
20090046342 | Light Scanning Device - A light scanning device includes: a light source which emits light; a frame which supports the light source; an oscillating mirror which rotationally oscillates about a first axis to reflect the light emitted from the light source; a mirror holder which holds the oscillating mirror; a beam member which extends in a first direction orthogonal to the first axis and which is longer than the mirror holder in the first direction; a first fixing member which fixes the mirror holder to the beam member; and a second fixing member which fixes the beam member to the frame. | 02-19-2009 |
20090059334 | PROJECTION SYSTEM AND PORTABLE ELECTRONIC DEVICE USING SAME - A projection system ( | 03-05-2009 |
20090059335 | Holding mechanism for long length optical element, optical scanning device, and image forming device - A holding mechanism for a long length optical element, which extends in a main scanning direction that is a movement direction of a deflected luminous flux by an optical deflector, and leads the deflected luminous flux to a scanned surface, includes; a holding member which is placed in a sub-scanning direction orthogonal to the main scanning direction and holds the long length optical element in at least two places. The holding member has, an adjusting section which deflects the long length optical element in the sub-scanning direction and controls a tilt of the long length optical element in a sub-scanning cross-section and/or occurrences of a tilt distribution in a longitudinal direction in the sub-scanning cross-section. | 03-05-2009 |
20090067019 | SWING MEMBER DEVICE, AND OPTICAL DEFLECTOR AND IMAGE-FORMING APPARATUS EMPLOYING THE SWING MEMBER DEVICE - A swing member device comprises a swingable part supported by a supporting part to be swingable around a torsional axis on a supporting base in at least one intrinsic oscillation mode: the swing member device having a temperature-raising unit for raising the temperature of ambient atmosphere in the region of swing motion of the swingable part, the temperature-raising unit raising the temperature of the ambient atmosphere to enable decrease of an influence of an unsteady dragging force caused by the ambient atmosphere. | 03-12-2009 |
20090067020 | EXPOSING DEVICE AND IMAGE FORMING APPARATUS HAVING THE SAME - A light source, a polygon mirror mechanism, a deflection lens, and a mirror unit are housed in a casing. The mirror unit includes a base member of metal fixed to the casing and a mirror supporting plate attached to the base member. The mirror supporting plate is formed by a metal flat plate and includes a mirror supporting section. A holder member is attached to the mirror supporting section. An end of the mirror is held in the holder member by a spring member. The holder member is rotatable around an axis of the mirror. When the holder member is rotated, an angle of the mirror changes. After the angle of the mirror is adjusted, the holder member is fixed to the mirror supporting section by a fixing member. | 03-12-2009 |
359199000 | Particular oscillating driver | 23 |
20080204839 | Optical scanning device, optical scanning display device, and optical scanning method - An optical scanning device is provided with a scanning unit including an oscillating element which is elastically and rotatably supported so as to rotatably oscillate, a light beam incident on the scanning unit being deflected to scan as the oscillating element oscillates, a scanning signal generating unit which generates a scanning signal, the scanning signal including a sawtooth wave part and a corrective wave part which is formed based on a resonance frequency intrinsic to the scanning unit, and a driving unit which drives the scanning unit to oscillate the oscillating element in accordance with the scanning signal. | 08-28-2008 |
20080218824 | METHODS OF DRIVING A SCANNING BEAM DEVICE TO ACHIEVE HIGH FRAME RATES - The present invention provides methods and systems for scanning an illumination spot over a target area. The present invention removes stored energy from a scanning element to stop the scanning element from vibrating and to substantially return the scanning element to its starting position so as to enable high frame rates. | 09-11-2008 |
20080218825 | Optical Scanning Apparatus and Image Display Apparatus Using the Same - The optical scanning apparatus converts a rotational motion of a motor to a reciprocating linear motion such that light modulated by a light source is scanned in two dimensions. In addition, direction changers are formed on both ends of a route of the linear reciprocating motion of the light source so as to change the moving direction of the light source. | 09-11-2008 |
20080225363 | OPTICAL DEFLECTOR AND OPTICAL DEVICE - An optical deflector includes a plurality of piezoelectric unimorph oscillating bodies ( | 09-18-2008 |
20080259423 | Scanner Arrangement and Method for Optically Scanning an Object - A scanner arrangement ( | 10-23-2008 |
20080266631 | Light Scanning Device and Image Forming Apparatus - A light scanning device includes: a light source which emits a light beam; an oscillating mirror which oscillates rotationally to reflect the light beam; an optical system which is configured to convert the light beam reflected by the oscillating mirror to be scanned over a scanning line on a target at a constant speed when an oscillation amplitude of the light beam by the oscillating mirror is a reference value; a detection unit which detects the light beam at least one position; a modulation controller which controls modulation of the light beam based on external data; and a timing correction unit which corrects a modulation timing based on two consecutive detection times of the light beam detected by the detection unit and detection times of the light beam detected by the detection unit when the oscillation amplitude is the reference value. | 10-30-2008 |
20080266632 | OPTICAL DEFLECTOR AND OPTICAL INSTRUMENT USING THE SAME - An optical deflector includes an oscillating system and a driving system for driving the oscillating system, the oscillating system including a first oscillator, a first torsion spring, a second oscillator, a second torsion spring and a supporting member, the first oscillator including a first movable element having a light deflecting element configured to deflect light, the second oscillator including a second movable element having a mass adjusting member configured to adjust a mass, wherein the first movable element is resiliently supported by the second movable element through the first torsion spring, for torsional oscillation about an oscillation axis, wherein the second movable element is resiliently supported by the supporting member through the second torsional spring, for torsional oscillation about the oscillation axis, and wherein the oscillating system has at least two natural oscillation modes having different frequencies, about the oscillation axis. | 10-30-2008 |
20080273230 | Optical Scanning Device, Printing Apparatus, and Method for Adjusting Oscillation Amplitude of Oscillating Mirror - An optical scanning device is provided. The optical scanning device includes an oscillating mirror which has a pair of electrodes and a mirror oscillator, and which deflects a light beam; a driving unit which applies a wave-like driving signal to the pair of electrodes so as to oscillate the mirror oscillator by an electrostatic force corresponding to the driving signal; and an adjusting unit which changes a duty ratio of the driving signal to adjust an oscillation amplitude of the oscillating mirror. | 11-06-2008 |
20080278783 | STABILIZING OSCILLATION AMPLITUDE OF TORSION OSCILLATOR AT PREDETERMINED FREQUENCY - A control method of stabilizing the oscillation amplitude of a torsion oscillator is described. The method includes the steps of: driving a torsion oscillator at a predetermined frequency with a drive energy level by a control module to generate a scanning angle of the incident light beam, wherein the drive energy level is associated with the predetermined frequency; comparing the scanning angle corresponding to the drive energy level with a designate scanning angle by the control module; and adjusting the drive energy level based on the comparison result until the scanning angle of the torsion oscillator is equal to the designate scanning angle. | 11-13-2008 |
20080278784 | Optical Scanning Device and Printing Apparatus - An optical scanning device comprises: an oscillating mirror which has a pair of electrodes and a mirror oscillator; a driving unit which applies a wave-like driving signal to the electrodes so as to oscillate the mirror oscillator correspondingly to the driving signal; a detecting unit which detects an oscillation amplitude of the oscillating mirror; an adjusting unit which changes a value of at least one of a duty ratio, a driving frequency, an amplitude, and a bias voltage of the driving signal as a parameter so as to adjust the oscillation amplitude detected by the detecting unit to a target value; and a storing unit which stores the value of the parameter changed by the adjusting unit as a reference value, wherein when the oscillating mirror is activated, the adjusting unit starts the adjusting of the oscillation amplitude with using the driving signal based on the reference value. | 11-13-2008 |
20080285102 | OSCILLATOR DEVICE, OPTICAL DEFLECTOR AND DRIVING SIGNAL GENERATING METHOD - An oscillator device includes an oscillation system | 11-20-2008 |
20080285103 | IMAGE DISPLAY APPARATUS - An image display apparatus includes first and second actuators that cause a mirror (movable part) to oscillate about first and second axes intersecting with each other. The first actuator is driven based on a drive signal having a frequency component around a resonant frequency relevant to oscillatory motion of the mirror, to cause the mirror to oscillate about the first axis, thereby scanning a light beam reflected off the mirror in a horizontal direction of the raster scanning. The drive signal is generated by regulating a reference drive signal based on a correction signal for use in correcting distortion of a displayed image, the distortion occurring when the first actuator is driven based on the reference drive signal for use as the drive signal to cause oscillatory motion of the mirror. This consequently simplifies distortion correction in the horizontal direction (the main scanning direction). | 11-20-2008 |
20080297868 | IMAGE DISPLAY APPARATUS - An image display apparatus capable of displaying an image on a plane of projection by beam raster scanning associated with resonant oscillation in a horizontal scanning direction (the main scanning direction), includes a resonance-point detector for detecting a mechanical resonant frequency in the horizontal scanning direction. Out of frequencies that are multiples of a vertical synchronizing frequency in image display, for example a frequency nearest to the mechanical resonant frequency detected in the resonance-point detector is determined as a horizontal scanning frequency of the raster scanning. The image display apparatus can thus provide a stable image display with ease. | 12-04-2008 |
20080297869 | OSCILLATOR DEVICE AND DRIVE CONTROL METHOD FOR OSCILLATION SYSTEM OF OSCILLATOR DEVICE - An oscillator device includes an oscillation system having at least one oscillator configured to oscillate, the oscillation system having a plurality of natural oscillation modes with a plurality of frequencies which frequencies are mutually in a relationship of integral-number ratio, a driving system configured to drive the at least one oscillation system, and a drive control system configured to control the driving system, wherein the drive control system applies to the driving system a driving signal in the form of a rectangular pulse based on combining a plurality of rectangular pulse signals corresponding to the plurality of natural oscillation modes, respectively. | 12-04-2008 |
20080316560 | OPTICAL DEFLECTOR - The optical deflector includes a deflector, a vibration detector, a driving signal generator, a modulation timing signal generator, and a deflection detector. The deflector has a vibrational system having a movable body with a light deflecting member, and deflects light from a light source by the movable body. The vibration detector detects the vibration condition of the vibrational system of the deflector. The driving signal generator generates a driving signal for driving the vibrational system of the deflector. The modulation timing signal generator generates a modulation timing signal as the reference time for regulating the amount of light from the light source. The deflection detector detects the deflection condition of light deflected by the deflector. The driving signal generator generates the driving signal based on information of the vibration condition detected by the vibration detector, and the modulation timing signal generator generates the modulation timing signal based on information of the deflection condition detected by the deflection detector. | 12-25-2008 |
20090015894 | OPTICAL FIBER SCANNING APPARATUS - A scanning apparatus and method, the apparatus comprising a light transmitter, a mount for supporting the light transmitter located remotely from its exit tip, a drive for driving the light transmitter to vibrate resonantly in a first direction and to vibrate non-resonantly in a second direction orthogonal to the first direction, and a synchronizer for synchronizing vibration of the light transmitter in the first and second directions so that the exit tip of the light transmitter executes a scan pattern. The drive applies a driving force to the light transmitter between the mount and the exit tip. | 01-15-2009 |
20090015895 | IMAGE FORMING APPARATUS, CONTROL METHOD THEREFOR, AND COMPUTER PROGRAM - An image forming apparatus which forms an image by scanning a light beam in a main-scan direction of a photosensitive member, the apparatus including: | 01-15-2009 |
20090027748 | MEMS Oscillator Having A Combined Drive Coil - A MEMS oscillator, such as a MEMS scanner, has an improved and simplified drive scheme and structure. Drive impulses may be transmitted to an oscillating mass via torque through the support arms. For multi-axis oscillators drive signals for two or more axes may be superimposed by a driver circuit and transmitted to the MEMS oscillator. The oscillator responds in each axis according to its resonance frequency in that axis. The oscillator may be driven resonantly in some or all axes. Improved load distribution results in reduced deformation. A simplified structure offers multi-axis oscillation using a single moving body. Another structure directly drives a plurality of moving bodies. Another structure eliminates actuators from one or more moving bodies, those bodies being driven by their support arms. | 01-29-2009 |
20090034039 | IMAGE FORMING APPARATUS - An image forming apparatus includes a drive control unit configured to control drive of a vibrating mirror in such a manner that vibration of the vibrating mirror becomes a reference vibration; a determination unit configured to determine an equilibrium convergence state of the vibrating mirror driven by the drive control unit; and a correction unit configured to correct magnification of an image in one scanning interval based upon result of determination by the determination unit. | 02-05-2009 |
20090051992 | OSCILLATOR DEVICE, OPTICAL DEFLECTING DEVICE AND METHOD OF CONTROLLING THE SAME - Disclosed is an oscillator device that includes an oscillating system having a first oscillator, a second oscillator, a first torsion spring for connecting the first and second oscillators each other, and a second torsion spring being connected to the second oscillator and having a common torsional axis with the first torsion spring; a supporting system for supporting the oscillating system; a driving system for driving the oscillating system so that at least one of the first and second oscillators produces oscillation as can be expressed by an equation that contains a sum of a plurality of time functions; a signal producing system for producing an output signal corresponding to displacement of at least one of the first and second oscillators; and a drive control system for controlling the driving system on the basis of the output signal of the signal producing system so that at least one of amplitude and phase of the time function takes a predetermined value. | 02-26-2009 |
20090059336 | System and Method for Display Illumination - System and method for increasing display brightness in laser illuminated display systems. An illumination source includes a light source to produce light, a disk having a set of lens elements arranged in a circular ring around a center of the disk, a motor coupled to the disk, and an external lens positioned in a light path of the coherent light source. As the disk rotates, the lens elements are moved sequentially through the light, angularly deflecting the light, which may be corrected by the external lens into a spatial deflection. The spatially deflected light may be used to simultaneously illuminate a surface with more than one color of light, thereby increasing the brightness of the light source. | 03-05-2009 |
20090080046 | OPTICAL SCANNING ELEMENT, DRIVING METHOD FOR SAME, AND OPTICAL SCANNING PROBE EMPLOYING OPTICAL SCANNING ELEMENT - An optical scanning element is provided and includes: a substrate; a first movable section supported on the substrate so as to be capable of rocking displacement about a first axis parallel to a surface of the substrate; a second movable section arranged integrally on the first movable section and supported so as to be capable of rocking displacement about a second axis perpendicular to the first axis, the second movable section having a micro mirror on an upper surface thereof; and a driving section that applies a physical action force on the first movable section and the second movable section so as to cause the micro mirror to perform rocking displacement in two axial directions about the first axis and the second axis. | 03-26-2009 |
20090086300 | FEEDBACK DRIVE FOR RESONANT OSCILLATION OF SCANNER MECHANISM - A drive for oscillating a reflector in a beam scanner, and for other similar oscillating devices, forms a feedback loop synchronized to the natural resonance of a resiliently movable flipper strip carrying the reflector. A magnet on the free end of the flipper generates a current in a sensing coil coupled to an amplifier upon passage of the magnet. The triggering signal is phase delayed by one or more integrators or timers, whereupon a driving current is generated, for example in a different winding on the same spool as the sensing coil. The driving current is applied at a phase delay that maintains oscillation up to a high operational frequency in a range. Synchronizing the drive to the natural frequency and phase of the flipper substantially reduces power consumption compared to forcing oscillation to a different reference. | 04-02-2009 |
359200000 | Bearing or shaft for rotary driver | 3 |
20080225364 | MOVING APPARATUS - A moving apparatus includes a cylindrical cam barrel provided with a cam groove; a moving member configured to be rotated relative to the cam barrel and moved in a perpendicular direction that is an axis direction of the cam barrel; and a bearing for supporting a support shaft fixed on the moving member in the cam groove, wherein when viewed from the axis direction of the support shaft, a contact position F between the bearing and the cam groove is located closer to the side of the rotation center axis of the moving member than the axis line of the support shaft. | 09-18-2008 |
20080259424 | HYDRODYNAMIC BEARING UNIT, AND OPTICAL DEFLECTOR, OPTICAL SCANNER AND IMAGE FORMING APPARATUS USING THE SAME - A hydrodynamic bearing unit using oil includes a shaft to be driven, a bearing member configured to support the shaft in a non-contact manner through a bearing gap by a hydrodynamic pressure of the oil, which is generated in the bearing gap while the shaft relatively rotate with respect to the bearing member, a housing configured to house the bearing member and having an opening at one end thereof, another end thereof being enclosed, a sealing member configured to seal a part of the opening of the housing, a channel configured to communicate a space formed between the shaft, the bearing member and the housing with an outside air, and a pressing member configured to press and fix the bearing member on the housing. At least one open part configured to release an air bubble contained in the housing is provided between the bearing member and the sealing member. | 10-23-2008 |
20090034040 | Method and apparatus for directing energy based range detection sensors - A directing apparatus having a mechanism for producing steerable energy and a scanning mechanism for scanning the energy. | 02-05-2009 |