Class / Patent application number | Description | Number of patent applications / Date published |
359212000 | Including reflective type moving element | 28 |
20080225366 | Distortion and Polarization Alteration in MEMS Based Projectors or the Like - Briefly, in accordance with one or more embodiments, a prism capable of being utilized in a scanned beam projector comprises a first window disposed on a first surface through which the beam is capable of passing to impinge upon a scan engine at an angle of incidence off axis from an axis normal to a plane of the scan engine, and a second window disposed on a second surface through which the beam is capable of passing. The first surface of the prism is disposed at a non-parallel angle with respect to the second surface to reduce distortion of the scan pattern or image from the scan engine. The prism may further comprise one or more internal surfaces capable of reflecting the beam onto the scan engine off axis, where such reflecting may impart a desired polarization state to the beam reflected onto the scan engine. | 09-18-2008 |
20080239441 | MIRROR DEVICE AND OPTICAL APPARATUS - The present mirror device for suppressing PDL on the assumption of multiple modes of angles of input light and output light to movable mirrors with respect to the crystal axis of a crystal member at the time light passes through the crystal member. The mirror device includes a mirror system | 10-02-2008 |
20080252955 | STEREOSCOPIC DISPLAY APPARATUS AND SYSTEM - A stereoscopic display apparatus includes a source of illumination for emitting light, an imaging system for imaging the source of illumination at a viewing region, a spatial light modulator for modulating light from the source of illumination with two-dimensional images, and a control unit for controlling a relative position of the “active” source of illumination related to the imaging system. The stereoscopic display apparatus further includes a controller to vary the relative position of the “active” source of illumination in three directions which are orthogonal to each other, without physically moving a light source for inducing the source of illumination to emit light. | 10-16-2008 |
20080285105 | LASER SCANNING UNIT AND IMAGE FORMING APPARATUS - A laser scanning unit and an image forming apparatus that include a deflector to deflect incident light; and a plurality of sub-scanning optical systems using the same reflective surface of the deflector. Each of the sub-scanning optical systems includes a light source, an entrance optical unit disposed between the light source and the deflector to direct light to the deflector, and an exit optical unit to direct the deflected light to imaging surfaces. Optical paths of the sub-scanning optical systems are asymmetric with reference to the deflector. | 11-20-2008 |
20080316562 | Mems Scanner System and Method - A MEMS scanner system and method, the system for deflecting an incident laser beam including a MEMS mirror 26 operable to receive the incident laser beam and to generate a reflected laser beam, and an opaque plate 28 having an aperture 30, the opaque plate 28 being opposite the MEMS mirror 26. The aperture 30 is sized to permit the incident laser beam and the reflected laser beam to pass through the aperture 30. | 12-25-2008 |
20090009843 | OPTICAL BEAM SCANNING DEVICE, IMAGE FORMING APPARATUS - To provide a technique that can appropriately correct an optical characteristic according to fluctuation in an environmental temperature. | 01-08-2009 |
20090040583 | LIGHT SCANNING UNIT, CONTROL METHOD THEREOF AND IMAGE FORMING APPARATUS HAVING THE SAME - A light scanning unit, a method of controlling, and an image forming apparatus having the same are provided. The light scanning unit includes: a light source; a beam deflector which reciprocally scans a light beam radiated from the light source to form an image range and a first non-image range and a second non-image range on opposite sides of the image range; a reflecting member which reflects a light beam deflected from the beam deflector to the first non-image range; and a sensor which senses the light beam deflected from the beam deflector to the second non-image range and the light beam reflected on the reflecting member. | 02-12-2009 |
20090040584 | LIGHT SCANNING UNIT, CONTROL METHOD THEREOF, AND IMAGE FORMING APPARATUS HAVING THE SAME - A light scanning unit includes a light source, a beam deflecting unit which reciprocatingly scans a light beam which is emitted from the light source to form an image sector and a first non-image sector and a second non-image sector disposed at opposite sides of the image sector, a sensor which senses the light beam which is deflected and scanned toward the first non-image sector, and a controller which adjusts a horizontal synchronization of the image sector which is formed by the light beam which is scanned in a first direction and a second direction which is the opposite direction to the first direction based on a time period of a signal which is outputted from the sensor. | 02-12-2009 |
20090040585 | OPTICAL SCANNING APPARATUS AND IMAGE DISPLAYING APPARATUS HAVING THE SAME - The object of the present invention is to provide an optical scanning apparatus which is not limited in the disposition of a scanning device, can reduce the adherence of dust to each member of the scanning device, and is enhanced in the reliability of the scanning device, and an image displaying apparatus having the same. The optical scanning apparatus includes a housing for containing and holding therein a scanning device provided with a movable mirror, an elastic supporting portion for supporting the movable mirror swingably about a swinging center, and a supporting base for supporting the elastic supporting portion, an optical member OE constituting a first optical system for directing a beam to the scanning device in the housing, and an optical member OX constituting a second optical system for emerging the beam passed through the scanning device. At least a part of the optical member OE and at least a part of the optical member OX constitute a part of the housing, and are provided so that a space in which the scanning device is contained in the housing configures a sealed space. | 02-12-2009 |
20090051996 | OPTICAL BEAM SCANNING APPARATUS AND IMAGE FORMING APPARATUS - An optical beam scanning apparatus of the present invention includes a body housing; a light source that emits one or more light fluxes; a pre-deflection optical system; an optical beam deflecting device; a sensor that detects a portion of the light flux deflected by the optical beam deflecting device; a holder base fixed to the body housing by a screw; a rotating holder attached to the holder base and provided with a shaft; a sensor substrate fixed to the rotating holder by a screw, the sensor being fixed to the sensor substrate; a rotation adjusting mechanism that rotationally adjusts the rotating holder around the shaft with respect to the holder base; and a fixing mechanism that fixes the rotating holder to the holder base. With this configuration, it is possible to properly adjust deviation of a recording position while making precise rotational adjustment of a horizontal synchronization sensor. | 02-26-2009 |
20090080049 | 2-AXIS DRIVING ELECTROMAGNETIC SCANNER - A 2-axis driving electromagnetic scanner, having a structure in which a mirror is separated from a driving unit and directly driven, is provided. The electromagnetic scanner includes: an outer driving unit which is capable of rotating around a first axis; an inner driving unit which is suspended from the outer driving unit so as to rotate around a second axis perpendicular to the first axis; and a stage which is located on an upper surface of the inner driving unit so as to rotate together with the inner driving unit. In the electromagnetic scanner, the stage is connected to the inner driving unit by a link unit protruding from a center of a lower surface of the stage. | 03-26-2009 |
359213000 | Having oscillating element | 11 |
20080204843 | MICRO-OSCILLATING MEMBER, LIGHT-DEFLECTOR, AND IMAGE-FORMING APPARATUS - The present invention provides a resonance type micro-oscillating member capable of retraining a fluctuation of angular velocity, and specifically provides a micro-oscillating member, which is a nested micro-oscillating member, wherein there exist a reference oscillation mode which is the characteristic oscillation mode of a reference frequency, and an even numbered oscillation mode which is the characteristic oscillation mode of a frequency being approximate even number times the reference frequency. | 08-28-2008 |
20080266634 | Light Scanning Device and Image Forming Apparatus - A light scanning device is provided. The light scanning device includes: an oscillating mirror which oscillates rotationally and reflects a light beam to be scanned over a scanning range, the scanning range including a first scanning range and a second scanning range set across a center of the scanning range; a detection unit including a light receiving face, on which the light beam is incident, to detect the light beam; and first and second stationary mirrors which reflect the light beam reflected by the oscillating mirror to the first scanning range and the second scanning range, respectively, to be incident on the light receiving face, wherein an incident pattern of the light beam reflected by the first stationary mirror incident on the light receiving face is different from an incident pattern of the light beam reflected by the second stationary mirror incident on the light receiving face. | 10-30-2008 |
20080278785 | MICROMECHANICAL DEVICE, MICROMECHANICAL SYSTEM, APPARATUS FOR ADJUSTING SENSITIVITY OF A MICROMECHANICAL DEVICE, METHOD FOR PRODUCING A MICROMECHANICAL DEVICE - A micromechanical device has a layer; at least a first slot formed in the layer to define a first oscillation element oscillatably suspended via a first spring portion of the layer; and at least a second slot formed in the layer to define a second oscillation element oscillatably suspended via a second spring portion of the layer, wherein a trench is formed in the spring portion pair in a main surface of the layer, wherein a resonance frequency of the first oscillation element is different from that of the second oscillation element, and the first and second spring portions and the trench are formed such that, in an anisotropic lateral material removal and/or addition of the first and second spring portions, a ratio of a relative change of the resonance frequency of the second oscillation element to that of the first oscillation element ranges from 0.8 to 1.2. | 11-13-2008 |
20080285106 | Apparatus and Method For Nanoradian Metrology of Changes In Angular Orientation of A Vibrating Mirror Using Multi-Pass Optical Systems - A new and useful metrology system is provided, of a type that comprises an optical cavity of the hemispherical or spherical type, with a vibrating mirror not located at or near a focus of the optical cavity, and which is particularly useful as a non interferometric metrology system. In one of its basic aspects, the metrology system measures changes in orientation of a vibrating mirror, by providing an optical cavity that includes reflection of a measurement beam from the vibrating mirror, where the optical cavity is configured such that an object space that includes the vibrating mirror is a conjugate image of the same object space. In another of its basic aspects, a metrology system according to the present invention has a measurement beam that is reflected from the vibrating mirror, where the vibrating mirror and a reference mirror are in a relationship in which reflection of the measurement beam from the vibrating mirror is then reflected from the reference mirror in a manner that establishes a local reference system for measuring changes in the orientation of the vibrating mirror. | 11-20-2008 |
20080291516 | Light Scanning Apparatus, Method of Controlling the Same and Image Forming Apparatus Equipped with the Same - A light scanning apparatus makes a light beam scan along a main scanning direction on an effective scanning region which has a predetermined width. The apparatus comprises: a light source which emits the light beam; a deflector which includes an oscillation mirror which oscillates about an oscillatory axis which is orthogonal or approximately orthogonal to the main scanning direction, deflects the light beam emitted from the light source using the oscillation mirror, and makes the light beam scan a second scanning range which contains but extends beyond a first scanning range which corresponds to the effective scanning region; a detector which detects the scanning light beam which moves through a position which is outside the first scanning range but is within the second scanning range, and outputs a signal; and a controller which controls a mirror drive signal fed to the oscillation mirror based on the output signal from the detector and accordingly adjusts the amplitude of the oscillation mirror. In the apparatus above, the controller stops driving the oscillation mirror when confirming based on the output signal that the oscillation mirror is under abnormal control. | 11-27-2008 |
20090002794 | RECEIVER APERTURE BROADENING FOR SCANNED BEAM IMAGING - A scanning beam assembly includes a beam generator to generate a beam of radiation; at least one reflector configured to deflect the beam across a field of view; and a plurality of multi-mode optical fibers for receiving radiation reflected from the field of view, wherein the optical fibers have end surfaces that face in at least two different directions, or wherein the optical fibers are configured to receive scattered radiation from an angular field of view larger than that determined by their individual numerical apertures. | 01-01-2009 |
20090021817 | Light Scanning Apparatus, Method of Controlling the Same and Image Forming Apparatus Equipped with the Same - A light scanning apparatus makes a light beam scan along a main scanning direction on an effective scanning region which has a predetermined width. The apparatus comprises: a light source which emits the light beam; a deflector which includes an oscillation mirror which oscillates about an oscillatory axis which is orthogonal or approximately orthogonal to the main scanning direction, deflects the light beam emitted from the light source using the oscillation mirror, and makes the light beam scan a second scanning range which contains but extends beyond a first scanning range which corresponds to the effective scanning region; a detector which detects the scanning light beam which moves through a position which is outside the first scanning range but is within the second scanning range, and outputs a signal; and a controller which controls a mirror drive signal fed to the oscillation mirror based on the output signal from the detector and accordingly adjusts the amplitude of the oscillation mirror. In the apparatus above, the controller stops driving the oscillation mirror when confirming based on the output signal that the oscillation mirror is under abnormal control. | 01-22-2009 |
359214000 | Single plane mirror element | 4 |
20080310002 | Scanning Type Image Display Apparatus - In a scanning type image display apparatus, in which the shape of a reflecting surface of a mirror as a scanning unit and the spot shape of a light beam on the reflecting surface are adapted to each other to reduce the mirror size and increase the resonance frequency of the mirror, thereby enabling higher-resolution image display, the scanning type image display apparatus includes a laser light source emitting a light beam; and a scanning unit that pivots to scan the light beam in a first direction and a second direction substantially perpendicular to the first direction. A pivot width of the light beam in the first direction is larger than a pivot width of the light beam in the second width. A sectional shape of the light beam in the vicinity of the scanning unit is elliptical with a side ( | 12-18-2008 |
359215000 | With imaging lens | 3 |
20080259429 | IMAGE GENERATING APPARATUS - The present invention relates to an image generating apparatus ( | 10-23-2008 |
20080291517 | OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS USING THE SAME - An optical scanning device having a deflector with an oscillating element wherein a relation 0.85<(dY/dθ)/(dY | 11-27-2008 |
20090051998 | OPTICAL SCANNING APPARATUS AND METHOD FOR ADJUSTING THE SAME - An optical scanning apparatus includes a light source having a light-emitting point; a light-beam converting unit configured to convert a state of a light beam emitted from the light-emitting point of the light source into another state; a deflecting unit configured to deflect and scan the light beam emitted from the light-beam converting unit, the deflecting unit including a resonant deflecting element having a single deflecting surface that reciprocates around an axis; and an imaging optical unit configured to cause the light beam deflected and scanned by the deflecting surface of the deflecting unit to form an image on a surface to be scanned. The distance between the light-emitting point of the light source and the light-beam converting unit is adjusted based on information obtained by a detector that detects the light beam emitted from the light source and deflected by the deflecting surface of the deflecting unit. | 02-26-2009 |
359216000 | Having multifaceted rotating element | 6 |
20080225367 | OPTICAL DEFLECTING DEVICE - An optical deflecting device including a mirror member having a light reflective area. The optical deflecting device includes a plurality of electrodes that are formed on a substrate, a fulcrum member that functions as an electrode and a regulation member. The range of movement to a respect direction of the substrate is regulated by the regulation member, which includes a conductive material at least in the surface thereof. | 09-18-2008 |
20080225368 | Scanning Device for an Optical Code Reader - A scanning device ( | 09-18-2008 |
20080252956 | Optical Pattern Generator Using a Single Rotating Component - An optical pattern uses a single rotating component. The rotating component includes a number of deflection sectors. Each sector deflects an incident optical beam by a substantially constant angular amount although this amount may vary from one sector to the next. The rotating component may be combined with an imaging lens group that produces, for example, image points, spots, or lines displaced along a line locus. | 10-16-2008 |
20080259430 | Light-scanning device and image-forming apparatus - A light-scanning device includes a polygon scanner having a rotatable polygon mirror which deflects a laser beam emitted from a light source, an optical image-forming element which images the deflected laser beam on a predetermined position, and an optical housing which supports the light source, the polygon scanner and the optical image-forming element, a non-rotational cylindrical shielding member for covering an upper part of the polygon scanner. | 10-23-2008 |
20080291518 | Optical Pattern Generator Using a Single Rotating Optical Component with Ray-Symmetry-Induced Image Stability - An optical pattern generator uses a rotating component that includes a number of deflection sectors containing optical elements. Each sector deflects an incident optical beam by a substantially constant angle although this angle may vary from one sector to the next. The constant deflection angle is achieved by symmetry within the deflection sector, specifically gut-ray symmetry. The rotating component may be combined with an imaging group that produces, for example, image points, spots, or lines displaced along a line locus. The image spots can also be displaced to either side of a line, for example by introducing a tilt in the orthogonal direction or by introducing light beams at various angles to the plane of symmetry. | 11-27-2008 |
20090009844 | Scanning optical system, optical scanning apparatus and image forming apparatus - A scanning optical system includes: a light source for emitting a light flux with a wavelength λ; a polygon mirror comprising a plurality of reflection surfaces for deflecting the light flux emitted from the light source for scanning the scanning surface; a light-converging lens group in a two-element structure. The light-converging lens group is arranged between the polygon mirror and the scanning surface and forms a light spot on the scanning surface. In the scanning optical system, the wavelength λ is not larger than 600 nm, and the scanning optical system satisfies a conditional expression relating to a number of the reflection surfaces of the polygon mirror, a scanning width of the scanning optical system, and a focal length of the light-converging lens group in a main scanning direction. | 01-08-2009 |