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Class 347/130 - Light emitting diodes


Subclass of Class 347 - Incremental printing of symbolic information
Definition: Subject matter wherein the writing beam is emitted from
No. of patents: 269
Last issue date: 12/13/2011


1              
NumberTitleIssue Date
8077190Exposure head, an image forming apparatus and an image forming method
An exposure head, includes: imaging optical systems which are arranged in a first direction; light emitting elements which are arranged in a second direction orthogonal to or substantially orthogonal to the first direction and emit lights to be imaged by the imaging...
12/13/2011
8063924Image forming apparatus
An image forming apparatus having; a photoconductive drum, a LED print head to write an image on a surface of the photoconductive drum, and a positioning device to locate the LED print head in a relative position in respect to the photoconductive drum, includes; cen...
11/22/2011
8035668Exposure apparatus and device manufacturing method
An exposure apparatus which forms a pattern on an object. The apparatus includes an exposure head structure in which a plurality of elemental exposure units are arrayed, each elemental exposure unit including (i) at least one light source for emitting exposure light...
10/11/2011
7948509Line head and image forming device using the same
A line head, includes a light-emitting element row, having a plurality of light-emitting elements arranged in a first direction; a plurality of feeding portions; a first power supply line for power supply, connected to a first feeding portion for a power supply of t...
05/24/2011
7859555Image forming apparatus
An image forming apparatus according to this invention prevents adverse effects on peripheral circuits and speeds up data transfer by preventing a mutual interference among signals. In the image forming apparatus, a transfer controller which converts into a differen...
12/28/2010
7800805Optical Scanning apparatus and image forming apparatus
In an optical scanning apparatus, when it is assumed that a scanning direction of light beams defected from a deflector is a main scanning direction, and a direction orthogonal to the main scanning direction and to optical axes of both a first and a second optical s...
09/21/2010
7787002Digital writing apparatus
In transfer of even pixel data, focusing on even-number data, only the even data is selected out of eight pixels of image data read out from a storage circuit and transferred to an LED head in a unit of four bits. Four pixel data are simply selected out of eight pix...
08/31/2010
7782347Light source using large area LEDs
A printing apparatus (100) for printing digital images onto a photosensitive medium (140) employing, for exposure energy, a light source (20) that uses various arrays of LEDs (32). The printing apparatus (100) may form the print im...
08/24/2010
7760215Line head and an image forming apparatus using the line head
A line head, includes: a substrate which is transmissive and includes a first surface and a second surface facing the first surface; a plurality of light emitting elements which are arranged on the first surface of the substrate and emit light beams; a wiring which ...
07/20/2010
7719553Exposure apparatus and image forming apparatus
An exposure apparatus comprises: a plurality of light sources; a first condensing unit, arranged to contact a light emitting surface of each of the light sources, that condenses the lights emitted from the plurality of light sources; and a second condensing unit tha...
05/18/2010
7675531Image forming apparatus
An image forming apparatus capable of forming wide images, includes: an exposing unit having a plurality of LED (light-emitting diode) heads arranged alternately in a main scanning direction, in which the resolution of an LED row formed in at least one of the plural...
03/09/2010
7564471Line head module, exposure apparatus, and image forming apparatus
Provided is a line head module including line heads on which a plurality of light emission elements are arrayed and exposing a photosensitive body by the light from the light emission elements, including: a support having a rotation axis parallel to the photosensiti...
07/21/2009
7508403Image forming apparatus
An image forming apparatus utilizing a light-emitting diode (LED). The image forming apparatus includes: an LED head including an LED array that has a plurality of dots, in which a resolution a (dpi) of the LED array and a resolution b (dpi) in a main scanning direc...
03/24/2009
7499067Line head and image forming device using the same
A line head, includes a light-emitting element row, having a plurality of light-emitting elements arranged in a first direction; a plurality of feeding portions; a first power supply line for power supply, connected to a first feeding portion for a power supply of t...
03/03/2009
7479973Method and apparatus for producing an image
An image producing apparatus includes a photoconductor. A photonic energy device is positioned adjacent the photoconductor. A reflecting member is located adjacent the photonic energy device, whereby at least a portion of the reflecting member is operable to deform ...
01/20/2009
7466327Line head and image forming apparatus
A line head includes pixel circuits each of which has a plurality of light-emitting elements and circuit elements arranged in a line, and which allow the light-emitting elements to selectively emit light, based on selection signals and data signals; data lines that ...
12/16/2008
7411598Line head and image forming apparatus
A line head includes pixel circuits each of which has a plurality of light-emitting elements and circuit elements arranged in a line, and that make the light-emitting elements emit light selectively, based on selecting signals and data signals; selecting circuits th...
08/12/2008
7403735Image formation apparatus using an electrophotographic process
An image formation apparatus using an elecrophotographic process for obtaining a high quality image with tone value R2 of equal to or more than 0.98 is provided. The resolution for light-writing is equal to or more than 1200 dpi and/or light-writing is pe...
07/22/2008
7382391Line head module and image forming apparatus
A line head module faces a photoconductor drum, and is disposed such that light-emitting elements are arranged parallel to a rotational axis of the photoconductor drum to carry out exposure on the photoconductor drum, and the photoconductor drum is rotatably dispose...
06/03/2008
7315396Systems and methods for generating banner pages
Disclosed are systems and methods for generating customized banner pages. In one embodiment, a system and a method pertain to creating a banner page document on a word processing application such that the document includes at least one token that is indicative of dy...
01/01/2008
7286147Line head and image forming device using the same
A line head, includes a light-emitting element row, having a plurality of light-emitting elements arranged in a first direction; a plurality of feeding portions; a first power supply line for power supply, connected to a first feeding portion for a power supply of t...
10/23/2007
7286764Reconfigurable modulator-based optical add-and-drop multiplexer
An optical add and drop multiplexer system comprising a first module for providing a first signal; a second module for providing a second signal; and a modulator for receiving a channel of the first signal at a first location, the first location configured to actuat...
10/23/2007
7286148Line head and image forming apparatus incorporating the same
A first power line is adapted to be electrically connected to a power source. A second power line is adapted to be grounded. A plurality of photo emitters are arrayed in a first direction, each of which is electrically connected between the first power line and the ...
10/23/2007
7277106Scanning apparatus having a fluorescent lamp and control method thereof
A scanning apparatus having a cold cathode fluorescent lamp includes a central processing unit (CPU) controlling a scan unit to be in one of the stand-by mode, a scan mode and a sleep mode and outputting a PWM signal having a variable duty ratio based on an operatio...
10/02/2007
7271402Optical module and methods for optically aligning and assembling the same
An optical alignment method is for an optical module including a housing unit, a light-sensing unit, and a lens unit. The method includes: (a) through image-capturing techniques, finding a light-sensing component of the light-sensing unit and a predetermined referen...
09/18/2007
7269375Image transfer device and method for cleaning a part thereof
An image transfer device for a sheet-fed image reproduction system is disclosed in which an improved removal of contaminants from the surface of an image transfer member is possible by using a tacky surface cleaning member contacting the image transfer member surfac...
09/11/2007
7265769Device and method for registering multiple LED bar imagers in an image-on-image system
A method and apparatus adjusting the lateral position of an LED bar may minimize image banding in image-on-image systems having multiple LED bar imagers. A photoreceptor may be transported past a plurality of marking stations. At each marking station an LED bar imag...
09/04/2007
7239333LED array package structure and method thereof
According to the method, a trench structure is formed in a substrate. LED arrays and driver ICs are located in the corresponding trenches. An insulating layer is formed over the substrate, the LED arrays and the driver ICs. A photolithography process forms an electr...
07/03/2007
7236845Selecting OLED devices using figure of merit
A method of selecting an OLED device to be manufactured based on customer requirements, including the customer providing first and second sets of requirements, providing a plurality of OLED device constructions based on the first and second sets of requirements, dev...
06/26/2007
7207677Image display device and projector
A display device using a tilt-mirror device and a projector. The image display device may include a first color-ray light-source for supplying a G-ray, a second color-ray light-source for supplying a R-ray or B-ray, and a tilt-mirror device having a plurality of mov...
04/24/2007
7201472Inkjet nozzle having fluidic seal between ink ejection member and stationary member
An inkjet nozzle is provided. The nozzle comprises: a nozzle chamber having an ink ejection aperture defined therein; a stationary member; and an ink ejection member for ejecting ink from the aperture. The ink ejection member is moveable relative to the stationary m...
04/10/2007
7188922Recording apparatus equipped with heatsink
A recording apparatus having: (a) a head unit including an actuator which generates energy required for recording predetermined patterns of image on a recording medium; (b) a circuit board including a driver element which drives the actuator of the head unit; and (c...
03/13/2007
7180103III-V power field effect transistors
A field effect transistor configured for use in high power applications and a method for its fabrication is disclosed. The field effect transistor is formed of III-V materials and is configured to have a breakdown voltage that is advantageous for high power applicat...
02/20/2007
7177081High contrast grating light valve type device
A grating light valve has with a plurality of spaced reflective ribbons are spatially arranged over a substrate with reflective surfaces. The grating light valve is configured to optimized the conditions for constructive and destructive interference with an incident...
02/13/2007
7165845Image display device and projector
An image display device and a projector using th image display device includes a tilt-mirror device having a plurality of movable mirror elements. A first color-ray light-source may be arranged so that a first color-ray light is reflected in a predetermined directio...
01/23/2007
7161611Exposure system
In an exposure system for exposing a color photosensitive body including first, second and third photosensitive materials which respectively develop into cyan, magenta and yellow, the same parts of the photosensitive body are exposed a plurality of times respectivel...
01/09/2007
7158161Organic electroluminescence element and an exposure unit and image-forming apparatus both using the element
Providing an exposure unit using an organic electroluminescence element with a large emitted light quantity. The organic electroluminescence element has, on a substrate 31, an anode 32 acting as a hole injection electrode, a cathode 33 ac...
01/02/2007
7157741Silicon optoelectronic device and optical signal input and/or output apparatus using the same
A silicon optoelectronic device and an optical transceiver, wherein the silicon optoelectronic device includes an n- or p-type silicon-based substrate and a doped region formed in a first surface of the substrate and doped to an opposite type from that of the substr...
01/02/2007
7145590Apparatus with offset light source for forming images on photosensitive surface
Disclosed is an image forming apparatus which provides an image of an excellent quality which has a less variation in resolution and suppressed linear irregularity. A rod lens array includes two rows of rod lenses stacked one on the other. An LED array is offset by ...
12/05/2006
7131748Decorative lights with addressable color-controllable LED nodes and control circuitry, and method
A decorative lighting apparatus includes a decorative light strand having a plurality of addressable color-controllable red-green-blue (RGB) light-emitting diode (LED) nodes positioned therealong; a decorating selector which provides a plurality of user-selectable s...
11/07/2006
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