Patent application number | Description | Published |
20080204840 | OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS - An optical scanning device includes a light source, a deflector, and an image-forming optical system. The deflector includes a deflecting surface for deflecting light beams in a main scanning direction. The image-forming optical system includes two relay lenses having a positive power in the main scanning direction. The relay lenses cause main light beams of light beams emitted from the light source to cross near the deflecting surface in the main scanning direction. | 08-28-2008 |
20080204841 | OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS - An optical scanning device includes a deflecting unit, a first sensor, and a modulating system. The deflecting unit deflects a plurality of beams in a main scanning direction to a writing area of a surface to be scanned for scanning the writing area. The first sensor detects a beam to be incident on a point on a first side of the writing area, and outputs a signal in response to detected beam. The modulating system modulates the beams in synchronization with the signal output from the first sensor. | 08-28-2008 |
20080204842 | OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS - By setting elements within the range that predetermined conditions are satisfied, for example, so that a size of a rotating polygon mirror is minimized, the rotating polygon mirror is made compact while the eclipse of light beams in the main scanning direction is prevented. The cost reduction of an apparatus is thus realized. The compact rotating polygon mirror reduces the consumption energy and the amount of heat generated in its drive system. Deteriorations in various optical characteristics including an increase in spot diameter of the light beam by temperature variation, uneven scanning pitch, and sub-scanning direction variation in beam pitch are suppressed. | 08-28-2008 |
20080218827 | OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS - An optical scanning device includes a light source, a light-beam splitting unit, a deflector, and a scanning optical system. The light-beam splitting unit splits a light beam from the light source into a plurality of light beams, so that the light beams are each incident to any one of reflecting surfaces of the deflector while having a phase difference of approximately π/2. The scanning optical system receives the light beams from the deflector and projects each of the light beams onto a corresponding target surface. | 09-11-2008 |
20080219601 | OPTICAL SCANNER AND IMAGE FORMING APPARATUS - An optical scanner includes a housing and an intermediate member that includes a first joining surface and a second joining surface. The first joining surface is attached to the housing and the second joining surface is attached to at least one optical element of any one of a first optical system and a second optical system. In a three-dimensional coordinate in which a first one of coordinate axes is a direction that is parallel to both the first joining surface and the second joining surface, a second range on the first coordinate axis corresponding to the second joining surface includes a center point of a first range on the first coordinate axis corresponding to the first joining surface. | 09-11-2008 |
20090002792 | Optical scanning device and image forming apparatus - An optical scanning device includes a first optical element that converts a cross-section shape of a light beam from a semiconductor laser to a desired shape; a second optical element that guides the light beam output from the first optical element to an optical deflector that deflects the light beam; and a third optical element that gathers the light beam deflected by the optical deflector onto a surface to be scanned to form a light spot thereby optically scanning the surface. At least one of the first optical element, the second optical element, and the third optical element includes a resin-made lens, at least one of the resin-made lenses has a power diffracting surface, and a surface shape of at least one of power diffracting surfaces is formed so that a power of a diffracting portion and a power of a refractive portion are cancelled out. | 01-01-2009 |
20090051942 | Image output apparatus using radio contact element - An image output apparatus includes a receiving unit that receives first information from a first radio contact element that performs a close-range radio contact; an image processing unit that forms image data of an image to be output from the first information; and an image output unit that outputs the image to an output medium from the image data. | 02-26-2009 |
20090074459 | Optical Scanning Device and Image Forming Apparatus - A common photodetecting unit detects a plurality of beams scanned by a plurality of polyhedral reflection mirrors provided in a multiple stages with a common rotation axis, and generates a synchronization detection signal based on detected beams. The reflection mirrors make a predetermined angle θ1 in a direction of rotation of the reflection mirrors. When time between two consecutive synchronization detection signals on a time line generated by the common photodetecting unit is ti, where i is a positive integer equal to or smaller than number of split beams, at least one of ti is different from others. | 03-19-2009 |
20090141316 | IMAGE FORMING APPARATUS - A deflector deflects a light beam from a light source. A scanning optical system focuses the light beam deflected by the deflector. An image carrying member is located at a focal position of the light beam and includes a surface that is scanned in a main scanning direction with the light beam focused by the scanning optical system. One pixel of an image is formed by a plurality of light spots having different focal positions in at least a sub-scanning direction. At least one light spot from among the light spots is formed on the surface of the image carrying member at a scan timing different from those of rest of the light spots. | 06-04-2009 |
20090175657 | OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS - In an optical scanning device, when pixel density is taken to be n, number of the light beams is taken to be b, and number of the deflection surfaces of a deflecting unit is taken to be p, a spatial frequency S denoted by S=1/(1/(25.4/n×b×p) is within a range of a spatial frequency characteristic for a visual perception system of a high relative luminous efficiency. When spacing between ends in a sub-scanning direction of a scanning line formed by one scan by the deflection unit is taken to be L | 07-09-2009 |
20090177415 | Surface Roughness Inspection System - [Problem] To provide a surface roughness inspection system enabling suitable inspection even when the surface of the object being inspected is curved. | 07-09-2009 |
20090214261 | OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS - An optical scanning device that scans a scanning surface with a light beam includes a light source that emits the light beam and a pre-deflector optical system that includes at least one diffractive optical element including a diffraction surface having no power at room temperature. The diffraction surface has a multi-step shape having a plurality of zone surfaces substantially perpendicular to an optical axis and a plurality of step surfaces each adjacent to each of the zone surfaces. On a cross sectional plane of the diffraction surface including the optical axis, each of the zone surfaces and each of the step surfaces makes an obtuse angle. | 08-27-2009 |
20090251753 | OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS - An optical scanning device includes a diffractive optical element. The diffractive optical element is a hybrid lens in which a resin layer is joined to a glass-lens base material, and a diffractive surface is provided in the resin layer. The diffractive surface has a multi-step structure including a plurality of zonal surfaces and a plurality of step surfaces. | 10-08-2009 |
20090304258 | Visual Inspection System - [Problems] To provide a visual inspection system able to greatly suppress the increase of the amount of processing and detect scratches or other defects of the surface of an object being inspected by a suitable resolution and able to judge the state of formation of films on that object surface. | 12-10-2009 |
20090315967 | OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS - An optical scanning device includes a lens having a negative optical power at least in a sub-scanning direction and a lens having a positive optical power at least in the sub-scanning direction between a light source and a deflecting unit. The optical scanning device further includes a coupling lens and an adjusting lens whose positions can be adjusted in an optical axis direction and then bonded with ultraviolet curing resin. Therefore, the magnification of an optical system can be adjusted and consequently a desired scan-line interval can be obtained. | 12-24-2009 |
20100026997 | APPARATUS AND METHOD FOR INSPECTING EDGE OF SEMICONDUCTOR WAFER - A linear actuator which can make a bed flat in emergency. A linear actuator ( | 02-04-2010 |
20100034563 | OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS - P-polarized light beam passing through an fθ lens passes through a polarization beam splitter, is converted into S-polarized light beam by a quarter-wave plate and a reflecting mirror, re-enters the polarization beam splitter, and is reflected at the polarization beam splitter in the −Z direction. An optical path of a light beam between a polygon mirror and the fθ lens, between the fθ lens and the polarization beam splitter, between the polarization beam splitter and the quarter-wave plate, between the quarter-wave plate and a reflecting mirror, between the reflecting mirror and the quarter-wave plate, and between the quarter-wave plate and the polarization beam splitter are in the same plane. | 02-11-2010 |
20100060712 | SURFACE-EMISSION LASER ARRAY, OPTICAL SCANNING APPARATUS AND IMAGE FORMING APPARATUS - A surface-emission laser array comprises a plurality of surface-emission laser diode elements arranged in the form of a two-dimensional array, wherein a plurality of straight lines drawn perpendicularly to a straight line extending in a first direction from respective centers of the plurality of surface emission laser diode elements aligned in a second direction perpendicular to the first direction, are formed with generally equal interval in the first direction, the plurality of surface-emission laser diode elements are aligned in the first direction with an interval set to a reference value, and wherein the number of the surface-emission laser diode elements aligned in the first direction is smaller than the number of the surface-emission laser diode elements aligned in the second direction. | 03-11-2010 |
20100066998 | SURFACE INSPECTION APPARATUS - [Problem] To provide a surface inspection apparatus able to suitably inspect the outer circumference edge part of a semiconductor wafer or other plate-shaped member. | 03-18-2010 |
20100074514 | WAFER CONTAINING CASSETTE INSPECTION DEVICE AND METHOD - To provide a wafer containing cassette inspection device capable of expressing external view attributes such as shapes of respective inspection object portions of water containing cassettes of different types under the same condition without changing imaging conditions for each of the types. A wafer containing cassette inspection device includes an imaging device ( | 03-25-2010 |
20100075442 | SEMICONDUCTOR WAFER PROCESSING APPARATUS, REFERENCE ANGULAR POSITION DETECTION METHOD, AND SEMICONDUCTOR WAFER - [Problems] To provide a semiconductor wafer processing apparatus and reference angular position detection method able to suitably detect a reference angular position for a semiconductor wafer for which a reference angular position is set and a semiconductor wafer for which a reference angular position is suitably set. | 03-25-2010 |
20100091083 | OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS - An optical scanning device includes an optical housing in which a polygon mirror that is rotated by a motor is accommodated and an air inlet that includes a filter. An airflow guiding member is arranged at a position opposite to a surface of the polygon mirror on the air inlet side. An air inducing path is provided, which includes a first flowing path and a second flowing path. The first flowing path includes a first end linked to the air inlet and a second end arranged close to a mirror surface of the polygon mirror. The second flowing path is formed with a surface of the airflow guiding member on an opposite side of the air inlet and a top surface of the polygon mirror. | 04-15-2010 |
20100177953 | DISC WAFER INSPECTING DEVICE AND INSPECTING METHOD - [Problem] An inspecting device and an inspecting method enabling better precision inspection for a processing region formed on a surface of a semiconductor wafer or other disc wafer are provided. | 07-15-2010 |
20100194843 | OPTICAL SCANNING DEVICE, IMAGE FORMING APPARATUS, CONTROL METHOD, AND COMPUTER PROGRAM PRODUCT - In an optical scanning device including a vertical cavity surface emitting laser (VCSEL), an optical scanning device controls so as to satisfy P | 08-05-2010 |
20100214633 | SURFACE-EMITTING LASER ARRAY, OPTICAL SCANNING DEVICE, AND IMAGE FORMING DEVICE - A surface-emitting laser array includes a plurality of light emitting parts arranged in a two-dimensional formation having two orthogonal directions. When the plurality of light emitting parts are orthogonally projected on a virtual line parallel to one of the two orthogonal directions, a spacing between two of the plurality of light emitting parts along the virtual line is equal to an integral multiple of a predetermined value. The plurality of light emitting parts include a first light emitting part, a second light emitting part adjacent to the first light emitting part, and a third light emitting part adjacent to the second light emitting part, and a spacing between the first and second light emitting parts differs from a spacing between the second and third light emitting parts. | 08-26-2010 |
20100245810 | INSPECTION METHOD BASED ON CAPTURED IMAGE AND INSPECTION DEVICE - A method of inspection and inspection apparatus able to use a captured image to more precisely inspect the state of film, defect parts, etc. at a surface of an object under inspection are provided. | 09-30-2010 |
20100246934 | INSPECTION DEVICE FOR DISK-SHAPED SUBSTRATE - An inspection apparatus of a disk-shaped substrate able to precisely quantitatively inspect positions of formation of film layers formed on the surface of a disk-shaped substrate is provided, that is, an inspection apparatus of a disk-shaped substrate on which film layers are formed designed to generate captured image data expressing a captured image corresponding to a field of view based on image signals successively output from an image capturing unit capturing an image of a predetermined surface at an outer circumference part of the disk-shaped substrate and to generate film layer edge position information Y | 09-30-2010 |
20100310150 | FEATURE ANALYZING APPARATUS - A feature analysis apparatus which enables visual confirmation of features of an inspected object and which enables limitations on the degree of freedom of classification based on the features to made relatively smaller is provided. It acquires inspected object information of an inspected object (S | 12-09-2010 |
20100310152 | SUBSTRATE SURFACE INSPECTING APPARATUS AND SUBSTRATE SURFACE INSPECTING METHOD - A substrate surface inspection apparatus and method enabling judgment and analysis of the state of even portions of a substrate supported by supports using a captured image are provided. A support mechanism | 12-09-2010 |
20110069137 | OPTICAL SCANNER AND IMAGING APPARATUS USING THE SAME - An optical scanner includes a light source modulated based on image data, an optical deflection and scanning part deflecting a light beam emitted from the light source, and a scanning and imaging optical system condensing the deflected light beam toward a scanning surface so as to form a light spot optically scanning the scanning surface. The effective scanning region of the scanning surface is divided into a plurality of regions according to a scanning line curving characteristic. Suitable image data for optically scanning the divided regions are selected from image data of a plurality of image lines every time the light spot optically scans the effective scanning region, so that the image data of each of the image lines is written with scanning line curving being corrected. | 03-24-2011 |
20110134500 | OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS - An optical scanning device includes a coupling optical system, a light source including a plurality of light emitting units for emitting light beams, and a deflector including a deflecting surface for deflecting the light beams. The coupling optical system is arranged on an optical path between the light source and the deflector so that the light beams enter the deflector at an angle with respect to a normal direction of the deflecting surface in a sub-scanning direction. The light emitting units are arranged two-dimensionally, and a distance between two light emitting units at opposite ends in a main scanning direction is smaller than a distance between two light emitting units at opposite ends in the sub-scanning direction. | 06-09-2011 |
20110228368 | OPTICAL SCANNING DEVICE, OPTICAL WRITING DEVICE, AND IMAGE FORMING APPARATUS - An optical scanning device includes a first optical system for guiding light beams emitted from a plurality of light emitting units to an optical deflector, and a second optical system for focusing the light beams to optically scan a surface to be scanned. At least one of the first optical system and the second optical system includes a resin lens having a diffractive surface. The diffractive surface includes a diffractive portion and a refractive portion. A power of the diffractive portion and a power of the refractive portion cancel each other. | 09-22-2011 |
20120069416 | SURFACE-EMISSION LASER ARRAY, OPTICAL SCANNING APPARATUS AND IMAGE FORMING APPARATUS - A surface-emission laser array comprises a plurality of surface-emission laser diode elements arranged in the form of a two-dimensional array, wherein a plurality of straight lines drawn perpendicularly to a straight line extending in a first direction from respective centers of the plurality of surface emission laser diode elements aligned in a second direction perpendicular to the first direction, are formed with generally equal interval in the first direction, the plurality of surface-emission laser diode elements are aligned in the first direction with an interval set to a reference value, and wherein the number of the surface-emission laser diode elements aligned in the first direction is smaller than the number of the surface-emission laser diode elements aligned in the second direction. | 03-22-2012 |
20120182373 | OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS - An optical scanning device for an image forming apparatus includes plurality light sources, a deflecting unit that deflects light beams from the light sources with a common deflecting reflection surface, a scanning optical system that guides the light beams deflected from the common deflecting reflection surface of the deflecting unit onto the optical scanning portions on stations different for each light source in order to form an optical spot with each light beam, monitoring units that monitor light intensities of the light beams from the light sources, and a splitting unit that splits each light beam into a split light beam toward one monitoring unit. The light beams enter the monitoring unit at different timings and enter the deflecting unit at different incident angles. | 07-19-2012 |
20130286150 | SURFACE-EMISSION LASER ARRAY, OPTICAL SCANNING APPARATUS AND IMAGE FORMING APPARATUS - A surface-emission laser array comprises a plurality of surface-emission laser diode elements arranged in the form of a two-dimensional array, wherein a plurality of straight lines drawn perpendicularly to a straight line extending in a first direction from respective centers of the plurality of surface emission laser diode elements aligned in a second direction perpendicular to the first direction, are formed with generally equal interval in the first direction, the plurality of surface-emission laser diode elements are aligned in the first direction with an interval set to a reference value, and wherein the number of the surface-emission laser diode elements aligned in the first direction is smaller than the number of the surface-emission laser diode elements aligned in the second direction. | 10-31-2013 |
20140204166 | OPTICAL SCANNING APPARATUS AND IMAGE FORMING APPARATUS - An optical scanning apparatus includes a light source; and a rotational polygon mirror having N reflecting surfaces, the rotational polygon mirror being configured to reflect a light flux emitted from the light source so that a scanning surface is scanned along a main-scanning direction with reflected from the rotational polygon mirror. A width of the light flux incident on the rotational polygon mirror in a direction corresponding to the main-scanning direction is smaller than a width of each reflecting surface of the rotational polygon mirror in the direction corresponding to the main-scanning direction. | 07-24-2014 |