| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 347246000 | Feedback of light for intensity control | 20 |
| 20080273076 | LIGHT BEAM SCANNING APPARATUS AND IMAGE FORMING APPARATUS - An image forming apparatus is provided with a modulator producing a modulated signal of a pulse width decided on given image data and a driver driving an optical generator such as laser to generate a light beam. The image forming apparatus is further provided with a scanner periodically scanning the light beam generated by the optical generator and a power detector detecting information indicative of a power of the light beam scanned by the scanner. A pulse width adjustor uses the information detected by the power detector, in order to adjust the pulse width of the light beam. | 11-06-2008 |
| 20090135240 | System and Method for Focused Ion Beam Data Analysis - A system and method for improving FIB milling endpointing operations. The methods involve generating real-time images of the area being milled and real-time graphical plots of pixel intensities with an increased sensitivity over native FIB system generated images and plots. The images and plots are generated with raw signal data obtained from the native FIB system. More specifically, the raw signal data is processed according to specific algorithms for generating images and corresponding intensity graphs which can be reliably used for accurate endpointing. In particular, the displayed images will display more visual information regarding changes in milled material, while the intensity graphs will plot aggregate pixel intensity data on a dynamically adjusting scale to dramatically highlight relative changes in milled material. | 05-28-2009 |
| 20100238261 | IMAGE FORMING APPARATUS, OPTICAL WRITING PROCESS CONTROL METHOD, AND OPTICAL WRITING PROCESS CONTROL PROGRAM - An image forming apparatus includes light sources, a light intensity controller, an optical writing unit, a controller, and an image forming unit. The light sources are switchable between activated and deactivated conditions according to supplied image data. The light intensity controller controls light intensity of the light sources. In the optical writing unit, light beams output from the light sources are deflected in a main scanning direction. The controller sets a given number of light sources to activated condition to write a latent image on an image bearing member according to an image forming line speed. The controller instructs the given number of light sources to emit light beams onto an image area on the image bearing member, and instructs all of the light sources to emit light beams at a blank area on the image bearing member to execute a light intensity control for all of the light sources. | 09-23-2010 |
| 20100289865 | SYSTEM FOR OPTICALLY ADJUSTING AN IMAGING HEAD - The present invention relates to a system for optically adjusting a computer-to-plate (CTP) imaging head which includes an a light source ( | 11-18-2010 |
| 20100309280 | IMAGING PATTERNS OF FEATURES WITH VARYING RESOLUTIONS - A method is provided for forming an image of a pattern of features on media with radiation beams emitted by an imaging head while scanning over the media along a scan direction. The method includes determining a pitch of a pattern of features along a first direction and controlling the imaging head to selectively emit the radiation beams to form the pattern of features on the media with a plurality of pixels that can include imaged pixels and non-imaged pixels. The plurality of pixels can include a first pixel having a first size along the scan direction and a second pixel having a second size along the scan direction. The second size can be different from the first size and is determined based at least on the pitch of the features along the first direction and the first size. | 12-09-2010 |
| 20110032323 | IMAGE FORMING APPARATUS, LIGHT-INTENSITY CORRECTION METHOD, AND COMPUTER PROGRAM PRODUCT - An image forming apparatus includes a light source that emits light beam; an illumination-current generating unit that generates an illumination current that causes the light source to emit the light beam; a deflecting optical unit, thereby forming a light spot and scanning the scanned surface; a detecting unit that detects a scanning position of the light spot on the scanned surface; a control unit that calculates a relation between a value of the illumination current and an intensity of light based on a plurality of intensities of emitted light, each intensity of the plurality of intensities being close to or equal to a prescribed light intensity, and causes the illumination-current generating unit to generate the illumination current based on the relation. | 02-10-2011 |
| 20110043594 | OPTICAL WRITING DEVICE AND OPTICAL WRITING METHOD - An optical writing device includes a light source that emits multiple laser beams; a separating unit that separates each of the multiple laser beams into a monitor beam and a scanning beam; a photoelectric converting element | 02-24-2011 |
| 20110141217 | LIGHT SOURCE DEVICE, OPTICAL SCANNING DEVICE, AND IMAGE FORMING APPARATUS - In a light source device including an aperture member that regulates a light beam, |(Pap | 06-16-2011 |
| 20110228036 | SEMICONDUCTOR LASER DRIVER AND IMAGE FORMING APPARATUS INCORPORATING SAME - A semiconductor laser driver to drive at least one semiconductor laser, the semiconductor laser including a storage device, an emission-intensity setting device, and a drive circuit. The storage device stores emission-intensity switching data to control light-emission intensity of the semiconductor laser, the emission-intensity setting device sets the light-emission intensity based on the emission-intensity switching data stored in the storage device, and, the drive circuit generates a driving current to drive the semiconductor laser based on the light-emission intensity set in the emission-intensity setting device. | 09-22-2011 |
| 20110249071 | Apparatuses and methods for irradiating a substrate to avoid substrate edge damage - Apparatuses and methods are provided for processing a substrate having an upper surface that includes a central region, a peripheral region, and an edge adjacent to the peripheral region. An image having an intensity sufficient to effect thermal processing of the substrate is scanned across the upper surface of the substrate. The image scanning geometry allows processing the central region of the substrate at a substantially uniform temperature without damaging the outer edge. In some instances, the image may be formed from a beam traveling over at least a portion of the central region so that no portion thereof directly illuminates any portion of the edge when the image is scanned across the periphery region. The substrate may be rotated 180° or the beam direction may be switched after part of the scanning operation has been completed. | 10-13-2011 |
| 20120013701 | IMAGE PROCESSING METHOD AND IMAGE PROCESSING APPARATUS - An image processing method including calculating a density of a character to be recorded based on information of a type, size and line width of the character; adjusting an irradiation energy of a laser beam for recording the character based on the density of the character; and irradiating a recording medium with the laser beam whose irradiation energy is adjusted so as to record the character thereon. | 01-19-2012 |
| 20120176463 | IMAGE PROCESSING METHOD, AND IMAGE PROCESSOR - The present invention provides an image processing method which includes at least any one of image recording and image erasing, wherein a light irradiation intensity at a center position of the laser beam irradiated in the image recording is controlled; in the image recording, a first auxiliary line extended by a predetermined distance from a start point of each of image lines constituting an image in the opposite direction from the scanning direction and a second auxiliary line extended by a predetermined distance from an end point of each of the image lines in the scanning direction are prepared, and when the first and second auxiliary lines including an image line are continuously scanned, the image line is scanned with irradiating the laser beam, and the first and the second auxiliary lines are scanned without irradiating the laser beam to thereby record the image. | 07-12-2012 |
| 20130038672 | IMAGE FORMING APPARATUS, AND LIGHT BEAM POWER ADJUSTING METHOD AND PROGRAM - An image forming apparatus to form an image by optical scanning includes a light emitter to emit a light beam; a rotary reflective mirror to reflect the light beam; a photoreceptor to receive the light beam reflected by the rotary reflective mirror to form a latent image; a light sensor to detect the light beam; and an optical scanning controller to control scanning of the light beam. In such an image forming apparatus, the optical scanning controller causes the light emitter to emit the light beam when the light beam does not expose an area of the photoreceptor where a latent image is formed and adjusts a power of the light beam in discrete increments to a predetermined level appropriate for optical scanning. | 02-14-2013 |
| 20130044178 | PRINTER APPARATUS AND PRINTER HEAD - A disclosed device printer apparatus includes a recording sheet conveying block holding a recording sheet and including a light emitting element, and a first light receiving element; a head block printing characters, graphics or the like on the recording sheet including a second light receiving element positioned to face the light emitting element so as to directly receive the light; and a control circuit connected to the light emitting element, the first light receiving element, and the second light receiving element, wherein the control circuit determines, when the light is detected by the second light receiving element, that the recording sheet does not exist between the light emitting element and the second light receiving element, and when the light is not detected by the second light receiving element and is detected by the first light receiving element, that the recording sheet exists. | 02-21-2013 |
| 20130335504 | OPTICAL WRITER FOR FLEXIBLE FOILS - The technology disclosed relates to patterning of flexible substrate. One implementation can be applied for production of flexible displays and other electronic devices on flexible substrates. The substrate may be plastic film typically 50-150 microns thick and the size of the pattern features may typically be in the range 1-10 microns across. Larger and smaller structures are possible. The patterning is done by means of optical exposure, either by exposure of a photosensitive resist or lacquer, or by other thermal or photochemical interaction between the light and the substrate. The substrate may typically be loaded as a roll and after exposure and other processing it may be rolled up on a second output roll, so called roll-to-roll (R-to-R) processing. | 12-19-2013 |
| 20140002572 | METHODS AND SYSTEMS FOR GENERATING DIFFERENTIAL GLOSS IMAGE USEFUL FOR DIGITAL PRINTING | 01-02-2014 |
| 20140240439 | LASER LIGHT CONTROL DEVICE AND IMAGE FORMING APPARATUS - A laser light control device includes: a photodiode disposed, along with a semiconductor laser, at a location capable of receiving laser light reflected on a polygon mirror after emitted from the semiconductor laser can be received; a semiconductor laser drive control section; and a comparison circuit configured to compare an output voltage of the photodiode and a reference voltage corresponding to a reference amount of light of the semiconductor laser. The semiconductor laser drive control section uses a timing with which the semiconductor laser drive control section receives from the comparison circuit an output indicating that the voltage output from the photodiode is larger than the reference voltage to generate a light emission start timing with which the semiconductor laser starts to emit laser light based on an image signal. | 08-28-2014 |
| 20140292993 | RECORDING-MEDIUM IMAGING DEVICE AND IMAGE FORMING APPARATUS - An effective image area can be properly corrected in accordance with the quantity of light from an irradiation unit by selecting, as the effective image area, pixels having light quantities more than or equal to a threshold value that allows accurate acquisition of a surface image of a recording medium, on the basis of a light quantity distribution of the light from the irradiation unit. This reduces the influence of mounting accuracy of the irradiation unit, and allows the recording medium to be identified accurately. | 10-02-2014 |
| 20160067995 | METHOD AND DEVICE FOR LASER MARKING WITH GREY LEVEL CALIBRATION - The invention provides a method and a device which enable laser markings to be performed and reduce the need of intervention by a service technician and still enable accurate grey scale markings to be performed reliably. Embodiments of the invention relate to a method and a device such that the device for laser marking is equipped with a measuring head which measures a laser output or laser pulse energy absolutely and using a measurement result thus obtained in order to change and suitably adapt an assignment function which assigns laser control values to grey scale values. | 03-10-2016 |
| 20160193851 | METHOD AND SYSTEM FOR EMITTING OFFSET ILLUMINATION FOR REDUCED STRAY LIGHT | 07-07-2016 |
