| Entries |
| Document | Title | Date |
|---|
| 20090153930 | OPTICAL SCANNING DEVICE, OPTICAL SCANNING METHOD, AND IMAGE FORMING APPARATUS - An optical scanning device includes a laser light source that emits a laser beam; a light deflector that deflects the laser beam; a scan-imaging optical system that focuses the laser beam deflected from the light deflector on a scanning surface to optically scan the scanning surface; a diffractive optical element receives the laser beam and diffracts a portion of the laser beam as a diffracted light; and a detecting unit that detects the diffracted light. The laser light source is a surface-emitting laser light source. Moreover, the diffractive optical element is made of plastic material having a linear expansion coefficient within a temperature variation range of the optical scanning device nearly equal to a rate of wavelength change of an emission wavelength of the laser light source within the temperature variation range. | 06-18-2009 |
| 20100033787 | OPTICAL SCANNER AND IMAGE FORMING APPARATUS INCLUDING SAME - An optical scanner includes a light source, an optical element, a deflector, a casing, and a first cover. The deflector deflects the light beam emitted from the light source to scan a photoreceptor through the optical element. The casing includes an upper opening, walls including a transparent plate defining a deflector compartment to accommodate the deflector, and an optical element mounting portion to accommodate the light source and the optical element. The first cover covers the upper opening of the casing and includes a recessed portion recessed toward the bottom of the casing and including a first opening at the bottom thereof facing the deflector. The recessed portion and the walls are directly or indirectly connected to define a single continuous space isolating the deflector compartment from the optical element mounting portion. The recessed portion and the deflector compartment communicate via the first opening. | 02-11-2010 |
| 20100060963 | OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS - A light beam splitting element that is arranged on an optical path of a light beam emitted from a VCSEL element splits an incident light beam into a first light beam and a second light beam. An optical system focuses the first light beam on the scanning surface and moves an optical spot formed by a focused light beam on the scanning surface in the main scanning direction. A light receiving element that is mounted on a circuit board receives the second light beam. A dust-proof member bridges a space between the circuit board and a circuit-board holding member that holds the circuit board and surrounds the light receiving element. | 03-11-2010 |
| 20100172004 | Drive Control Method for Galvano-Scanner - A galvano-scanner system ( | 07-08-2010 |
| 20100214636 | Method of Manufacturing Oscillator Device, and Optical Deflector and Image Forming Apparatus - A method of manufacturing an oscillator device having a fixed member and an oscillation plate supported by the fixed member through a supporting member for oscillation around a torsion axis, the oscillation plate being driven at a resonance frequency around the torsion axis, includes a frequency regulating step based on an extension member for adjustment of a mass of the oscillation plate, for forming the extension member on the oscillation plate and for adjusting the mass of the oscillation plate by cutting a portion of the extension member with the irradiation of a laser beam, an oscillator assembling step for fixing the fixed member to a fixed base, and a driving member assembling step for fixing a driving member for driving the oscillation plate to the fixed base, wherein at least the driving member assembling step is carried out after the frequency regulating step based on the extension member is performed. | 08-26-2010 |
| 20100253988 | LASER SCANNING MICROSCOPE AND SCANNER DRIVE DEVICE - A laser scanning microscope scans a plurality of scanning areas based on a drive table to indicate time series data for driving a scanner used for performing scanning with laser light. The laser scanning microscope includes a drive table creation unit and a drive control unit. The drive table creation unit is applied for creating an interpolating drive table for specifying a scanning path between an end point of a first scanning area and a start point of a second scanning area which is scanned next to the first scanning area. The drive control unit is applied for controlling driving of the scanner based on the interpolating drive table between the first scanning area and the second scanning area. | 10-07-2010 |
| 20100259805 | METHODS AND SYSTEMS FOR REDUCING SCANNER IMAGE DISTORTION - A scanning apparatus includes a sample stage that faces an optical scanning head or stage at a scanning plane; a first actuator that translates the sample stage or the optical stage along a first axis that is substantially parallel to the scanning plane; a sensor that senses the deviation from the first axis; and a controller coupled to the first actuator, the sensor, and the optical stage. The controller is programmed to operate the first actuator and the optical stage to acquire a scan of a sample at the sample stage; and modify the scan to compensate for a deviation from the first axis in translation of the sample stage or the optical stage along the first axis by the first actuator. Also included are methods of modifying scans to compensate for translation deviations. | 10-14-2010 |
| 20100290100 | CONFOCAL OPTICAL SYSTEM - A confocal optical system comprising a scanning fiber is provided. The scanning fiber is a single-mode fiber of which a first end is shaped as a curved surface. The scanning fiber transmits illumination light to the first end. The illumination light is emitted toward an observation area. The illumination light emanates from the first end. The illumination light emanates from the first end striking a target area within the observation area. The first end receives at least one of reflected light and fluorescence from the target area. The reflected light is the illumination light reflected from the target area. The fluorescence is induced at the target area by illumination from the illumination light. | 11-18-2010 |
| 20110051209 | BEAM IRRADIATION APPARATUS AND LASER RADAR - A beam irradiation apparatus includes a light source which outputs a laser beam, a convergent lens into which the laser beam output from the light source is entered, and a scanning portion which makes the laser beam transmitted through the convergent lens scan on a target region. In the beam irradiation apparatus, the laser light source is arranged such that a pn junction surface of a laser chip is parallel with the vertical direction. Length of the laser beam in the vertical direction on the target region is set by length of a light emitting portion of the laser light source in the vertical direction. Further, a wavefront aberration of the convergent lens with respect to the laser beam is set to be 0.15 λrms or less. | 03-03-2011 |
| 20110069363 | Laser Projector - A laser projector can generate a pulse signal capable of being generated according to the resolution of the clock signal, the pulse signal having a basic period and a basic pulse width each infinitely approximated to the characteristics of the resonance frequency. Moreover, because the laser projector can generate a pulse signal capable of correcting the errors led to be included in the approximated pulse signal, the laser projector can drive the scanning section with a horizontal vibration width corresponding to the resonance frequency, and can suitably display a projected image on a projection plane. | 03-24-2011 |
| 20110116145 | METHOD OF MANUFACTURING OSCILLATOR DEVICE, AND OPTICAL DEFLECTOR AND OPTICAL INSTRUMENT WITH OSCILLATOR DEVICE - A method of manufacturing an oscillator device having first and second oscillators being driven at first and second driving resonance frequencies gf1 and gf2, the method including a first step for processing the two oscillators, wherein, when the two oscillators are going to be processed as oscillators having first and second resonance frequencies different from the two driving resonance frequencies with a certain dispersion range, the two oscillators are so processed that the first and second resonance frequencies different from the two driving resonance frequencies become equal to first and second resonance frequencies f1 and f2, respectively, which are included in adjustable resonance frequency ranges, respectively, and a second step for adjusting the first and second resonance frequencies f1 and f2 so that they become equal to the first and second driving resonance frequencies gf1 and gf2, respectively. | 05-19-2011 |
| 20110176191 | SCANNING OPTICAL DEVICE - A scanning optical device that scans a light beam through a relay optical system, the relay optical system comprising: front group lenses arranged at a light source side; rear group lenses arranged at a side of a surface to be scanned; and first and second minors arranged between the front group lenses and the rear group lenses and supported by a common supporting member, wherein a normal vector of a minor surface of the first minor makes an angle (180−ω) with an incident optical axis from the front group lenses, a normal vector of the second minor makes an angle α (α≠180×m) with the normal vector of the first minor, and the supporting member includes a mechanism being linearly movable in a direction which makes an angle (ω−α+90) with the normal vector of the first mirror. | 07-21-2011 |
| 20110211240 | IMAGE DISPLAY DEVICE - An image display device which can, even when a laser beam source which has a kink region in the input-output characteristic thereof is used, easily reproduce a low gradation level with high accuracy, and can reduce undesired radiation due to a high-frequency signal is provided. The image display device includes a signal generation part which generates the image signal at a period corresponding to the scanning speed of the scanning part in accordance with every pixel, and a signal adjustment part which superposes a high-frequency signal having a period equal to or more than a period at which the image signal is generated. The signal adjustment part superposes the high-frequency signal on the image signal by changing the period of the high-frequency signal corresponding to the period at which the image signal is generated. | 09-01-2011 |
| 20110235142 | Light Scanning Apparatus - A light scanning apparatus includes: a light source configured to emit a light beam; a deflector configured to deflect and scan the light beam from the light source in a main scanning direction; a control substrate that is configured to control driving of the light source and includes a first connection part to which the light source is connected and a second connection part for connecting an external terminal; and a housing that supports the control substrate. The first connection part is arranged within the housing and the second connection part is exposed and arranged at the outside of the housing. | 09-29-2011 |
| 20110279879 | IMAGE FORMING APPARATUS - An image forming apparatus that is configured so as to display an image by scanning light for a drawing area formed on a display surface includes: a light emitting unit that emits the light; an optical scanning unit that two-dimensionally scans the light emitted from the light emitting unit for the drawing area by scanning the light in a first direction and scanning the light in a second direction that is orthogonal to the first direction at a speed lower than a scanning speed for the first direction; and a driving control unit that drives the optical scanning unit by allowing a swing width of the scanning on the drawing area in the first direction so as to be in correspondence with a maximum width of the image displayed in the drawing area on the drawing area in the first direction. | 11-17-2011 |
| 20120002258 | OPTICAL ELEMENT - An optical element has a plurality of first machining portions and a plurality of second machining portions. The plurality of first machining portions is aligned in a first direction and the first machining portions each have a convex shape. The plurality of second machining portions is aligned in the first direction along the plurality of first machining portions and the second machining portions each have a convex shape. Ends of the second machining portions in the first direction are adjacent to the corresponding first machining portions, in a second direction perpendicular to the first direction. The ends of the second machining portions in the first direction are disposed further from end of the corresponding first machining portions in the first direction, than the length of the first machining portions or the second machining portions in the second direction. | 01-05-2012 |
| 20120019885 | OPTICAL SCANNING APPARATUS - In an optical scanning apparatus, when air flow from a deflecting device is suppressed by a shielding member such as a transparent member, an image of a light beam is not formed at a predetermined position. In view of this, a first wall portion having a wall surface shaped concentrically with a center axis of a deflecting device is provided on an optical path directed from a laser light source toward the deflecting device. By providing at least the first wall portion having laser beam passing portions as openings passing through the wall surface of the first wall portion and providing a second wall portion connected to the first wall portion to define a closed surface except for the laser beam passing portions, warm air flow directed from the deflecting device to the laser light source is blocked. | 01-26-2012 |
| 20120075683 | CYLINDRICAL LENS, OPTICAL BEAM SCANNING APPARATUS USING THE SAME, IMAGE FORMING APPARATUS, AND METHOD OF MANUFACTURING THE LENS - A cylindrical lens according to the present invention is a cylindrical lens of a bi-concave type in which both of a surface on which light is made incident and a surface from which the light is emitted are formed as concave surfaces, wherein, in at least one of the concave surfaces, both ends of the concave surface projecting to outer sides are formed to coincide with a plane, a normal of the plane being an optical axis of the cylindrical lens. | 03-29-2012 |
| 20120188623 | SCANNING IMAGE DISPLAY DEVICE AND METHOD OF CONTROLLING THE SAME - A scanning image display device includes a laser source, a scanning section, a light detecting section, and a current control section. The laser source configured to emit laser light. The scanning section configured to scan the laser light within a scanning area. The light detecting section configured to detect the laser light. The a current control section configured to control a bias current and a modulated current which changes in accordance with an image signal and to adjust a modulation width of the modulated current to set a minimum value of the laser light emitted by the light source as a first target value. | 07-26-2012 |
| 20130063797 | OPTICAL LINE OF SIGHT TOGGLE MODULE - An optical LOS toggle uses two refractive optical elements located in the afocal space of an optical sensor. Optical surfaces of the two elements are shaped appropriately to work in combination with lateral displacements of the two elements such that the LOS angle is shifted. For a prescribed, discrete LOS shift, the optical image quality of the toggle module is corrected by a combination of aspheric shapes and diffractive surfaces on the optical surfaces of the two elements. To maintain performance along any radial direction and simplify fabrication, these aspheric or spheric shapes and diffractive surfaces should be rotationally symmetrical. Image quality is further improved through proper selection of the optical materials used to construct the optical elements. | 03-14-2013 |
| 20130088764 | LIGHT POSITION CONTROLLING APPARATUS AND METHOD OF MANUFACTURING THE SAME - A light position controlling apparatus and a method of manufacturing the same. The light position controlling apparatus includes a substrate; first and second electrodes that are arranged on the substrate and configured to generate an electric field; and a piezoelectric nano wire configured to operate as optical waveguide. The piezoelectric nano wire includes a first portion disposed on the substrate, and a second portion that extends from the first portion and bends according to the electric field generated by the first and second electrodes to change a travel direction of light transmitted by the piezoelectric nano wire. | 04-11-2013 |
| 20130155478 | LIGHT SCANNING APPARATUS - A light scanning apparatus, including: a light source configured to emit a light beam; a light deflector configured to deflect the light beam emitted from the light source so that the light beam scans a photosensitive member; a housing which contains the light source and the light deflector, and which is provided with an opening portion through which the light beam deflected by the light deflector passes; a transparent member mounted on the housing to close the opening portion and configured to transmit the light beam deflected by the light deflector; and a fixing member having an elastic portion configured to cover an outer circumferential portion of the transparent member, the fixing member being configured to fix the transparent member to the housing by pressing the elastic portion to the transparent member. | 06-20-2013 |
| 20130194647 | MOTION AXIS CONTROL AND METHOD FOR BIOSENSOR SCANNING - A motion control system and a method for biosensor scanning which scans a light beam spot over one or more of the biosensors supported by a microplate with an optical scanner system, the method including: | 08-01-2013 |
| 20130215486 | ENERGY EFFICIENT ILLUMINATION APPARATUS AND METHOD FOR ILLUMINATING SURFACES - A system for illuminating an object is provided, the system comprising a coherent or semi-coherent light source and a first diffuser positioned relative to the coherent or semi-coherent light source so as to receive said coherent or semi-coherent light. The first diffuser may diffuse the light to produce diffused light. An actuator having a moveable element, such as a moveable reflective surface, may be positioned to project the diffused light onto an object, and may be moved to project light onto different portions of the object. This movement may be performed with such rapidity that it is not perceived by a person viewing the object. Rather, the entire object would appear to be illuminated. Movement of the element may be controlled by a computer, and may be performed according to a predefined routine. | 08-22-2013 |
| 20130235440 | VIRTUAL IMAGE DISPLAY DEVICE - Image lights formed by a light emitting device and a virtual-image forming member and external light transmitted through a visibility adjusting member and the virtual-image forming member can be observed in parallel in a see-through manner. In the observation of the external light, the visibility adjusting member enables visibility adjustment corresponding to the eyesight of a wearer. Therefore, the wearer can observe the external light without wearing a device for visibility adjustment such as glasses. Therefore, it is possible to suppress an increase in the size of a virtual image display device. | 09-12-2013 |
| 20130308171 | OPTICAL SCANNING APPARATUS WITH OPTICAL BOX SEALED BY A DEFORMABLE SEALING MEMBER - A scanning optical apparatus includes an optical box accommodating a deflection device for scanningly deflecting a laser beam emitted by a light source and an optical part for directing the laser beam toward a member-to-be-scanned; a cap mounted to the optical box; a sealing member extending from the cap, wherein the sealing member is made of a material exhibiting easier deformation than the cap, and is contacted to a wall of the optical box in a deformed state. | 11-21-2013 |
| 20140118808 | LASER SCANNING UNIT AND IMAGE FORMING APPARATUS INCLUDING THE SAME - A light scanning unit includes: a light source emitting a light beam according to an image signal; a light deflector deflecting and scanning the light beam emitted from the light source; and a synchronization detection optical system comprising a synchronization detection sensor detecting a synchronization signal by receiving a portion of the light beam that is deflected and scanned by the light deflector and a synchronization detection lens disposed between the light deflector and the synchronization detection sensor, wherein the synchronization detection lens is an anamorphic lens in which refractive power in a first direction and refractive power in a second direction different from the first direction are different, and wherein the first direction of the synchronization detection lens is inclined with respect to a main scanning direction in which a light beam incident on the synchronization detection lens is scanned. | 05-01-2014 |
| 20140177019 | MOUNTING AUXILIARY MEMBER AND OPTICAL SCANNING DEVICE INCLUDING THE SAME - A mounting auxiliary member includes a rotary member and a stationary member. The rotary member is provided in an optical scanning device, and interposed between a light source holding member holding a light source and a head part of a screw. The rotary member has a first through hole through which a shaft part of the screw penetrates and is configured so as to co-rotate with the screw as the head part of the screw comes into contact with a peripheral edge part of the first through hole. The stationary member is interposed between the rotary member and light source holding member, has a second through hole into which the shaft part of the screw penetrating through the first through hole is movably inserted, and is configured to hold the rotary member while permitting the rotary member to slidably rotate. | 06-26-2014 |
| 20140247472 | SCANNING DEVICE - The invention concerns a scanning device for focusing a beam of rays in defined regions of a defined volume, comprising an input optics wherein the beam of rays penetrates first, having at least one first optical element; a focusing optics for focusing the beam of rays exiting from the input optics; and a deflecting device arranged between the first optical element and the focusing optics, for deflecting the beam of rays after it has passed through the first optical element, based on a position of the focus to be adjusted in lateral direction. In order to adjust the position of the focus of the beam of rays in the direction of the beam of rays, and optical element of the input optics can be displaced relative to the deflecting device. | 09-04-2014 |
| 20140285864 | OPTICAL SCANNER MANUFACTURING METHOD, OPTICAL SCANNER, IMAGE DISPLAY DEVICE, AND HEAD-MOUNTED DISPLAY - An optical scanner manufacturing method includes overlapping a first substrate including a base portion region that becomes a base portion, a shaft portion region that becomes a shaft portion, and a support portion region that becomes a support portion, and a second substrate in which a frame-like concave portion, a first portion that is positioned inside the concave portion, and a frame-like second portion that is positioned outside the concave portion and has a light reflectance reduction function are formed on one surface, to bond the base portion region to the first portion and to bond the support portion region to the second portion, patterning the first substrate to form the base portion, the shaft portion, and the support portion, and cutting the second substrate from the other surface side to separate the first portion and the second portion from each other. | 09-25-2014 |
