| Patent Number |
Title Of Patent |
Date Issued |
| 7433095 |
Reflective scanning optical system |
October 7, 2008 |
| In a reflective scanning optical system employing an imaging optical system having a curved mirror with a rotationally symmetrical reflecting surface configuration, the change in magnification of the imaging optical system in the auxiliary scanning direction is reduced and thereby the |
| 7106484 |
Scanning optical system |
September 12, 2006 |
| An scanning optical system includes a light source having a plurality of light emitting points each of which emits a beam, a first optical system that collimates the beams emitted by the light emitting points in regard to a main scanning direction while converging the beams in an auxilia |
| 7066437 |
Portable bookstand |
June 27, 2006 |
| The base of a conventional bookstand on which to support a book is a rectangular base having an area substantially as large as an opened book whereas the invention employs a method of placing a book on a crisscross form defined by a horizontal base and a vertical base crossing each o |
| 6999216 |
Reflective scanning optical system |
February 14, 2006 |
| There is provided a reflective scanning optical system, which includes a light source unit for emitting a beam, a polygon mirror, and a single f.theta. optical element. Magnification m.sub.z of the f.theta. optical element in an auxiliary scanning direction is set to satisfy: -4<m |
| 6975441 |
Scanning optical system |
December 13, 2005 |
| A scanning optical system has a scanning optical apparatus, which is provided with a laser diode, a collimating lens that collimates a laser beam emitted by the laser diode, a support member that holds and supports the laser diode and the collimating lens, a deflection member that dy |
| 6954222 |
Manufacturing method of scanning optical system |
October 11, 2005 |
| A laser beam emitted by a light source is incident on one of reflecting surfaces of a polygon mirror. The laser beam reflected by the reflecting surface is dynamically deflected in a main scanning direction due to the revolution of the polygon mirror and enters a scanning lens. The first |
| 6937374 |
Scanning optical system |
August 30, 2005 |
| A scanning optical system includes a polygonal mirror that deflects the even number of beams, which are incident thereon along optical paths arranged symmetrically with respect to a plane perpendicular to a rotation axis thereof. An imaging optical system for converging the beams include |
| 6937373 |
Scanning optical system |
August 30, 2005 |
| A multi-beam scanning optical system is provided with light sources that emit a plurality of laser beams having different wavelengths, respectively, a single deflector which deflects the plurality of laser beams simultaneously, an imaging optical system that converges the plurality o |
| 6934062 |
Scanning optical system |
August 23, 2005 |
| A scanning optical system includes a light source that emits a plurality of beams, a deflector disposed on optical paths of the beams emitted from light source, which deflector deflects the beams toward an object surface so that beam spots formed by the beams scan on the object surface i |
| 6882453 |
Scanning optical system |
April 19, 2005 |
| There is provided a scanning optical system for emitting a plurality of beams scanning in a main scanning direction. The scanning optical system includes a first and a second light emitting devices each of which has a linear array of light emitting points. The first and second light emit |
| 6816292 |
Scanning optical system |
November 9, 2004 |
| Laser beams emitted from a plurality of light emitting points of a light source unit are converged by a first optical system to be focused in an auxiliary scanning direction in the vicinity of a reflecting surface of a polygon mirror, dynamically deflected by the polygon mirror, and conv |
| 6771406 |
Scanning optical system |
August 3, 2004 |
| A scanning optical system includes a polygonal mirror that deflects the even number of beams, which are incident thereon along optical paths arranged symmetrically with respect to a plane perpendicular to a rotation axis thereof. An imaging optical system for converging the beams include |
| 6731417 |
Scanning optical system |
May 4, 2004 |
| A multi-beam scanning optical system is provided with a plurality of light sources that emit a plurality of laser beams having different wavelengths, respectively, a single deflector which deflects the plurality of laser beams simultaneously, an imaging optical system that converges the |
| 6714332 |
Scanning optical system |
March 30, 2004 |
| There is provided a scanning optical system, which is provided with a light source, a cylindrical lens that converges the beam emitted by the light source in an auxiliary scanning direction, a polygonal mirror, and an optical element that has a reflection surface to reflect the beam |
| 6697068 |
Game screen display control method and character movement control method |
February 24, 2004 |
| Provided is a game screen display controlling method comprising the steps of displaying a first game screen obtained from a first projection of a virtual 3-D space; comparing the priority of the first projection with the priority of a second projection correlated with a predetermined are |
| 6643044 |
Scanning optical system |
November 4, 2003 |
| In a scanning optical system, which is provided with an imaging optical system having first and second anamorphic optical elements to converge a deflected light beam from a deflector onto an object surface, a power of the first anamorphic optical element in the auxiliary scanning directi |
| 6624837 |
Scanning optical element and scanning optical system |
September 23, 2003 |
| A scanning optical element made of light transmitting material has alight transmissive first surface, and a reflective second surface. The first and second surfaces have first and second intersection points with first and second reference planes, respectively. The first and second refere |
| 6607445 |
Game execution method and equipment using player data |
August 19, 2003 |
| A game execution method and game equipment are disclosed. A central processing unit is provided to control the execution of a game program. Information related to a player is employed among a plurality of application programs to control displayed images of a character etc. according |
| 6563847 |
Laser optical system |
May 13, 2003 |
| Disclosed is a laser optical system including a multiline laser source that emits a laser beam having a plurality of peak wavelengths, an imaging optical system that converges the laser beam emitted from the multiline laser source to form beam spots of respective peak wavelengths on an |
| 6561909 |
Game in which telephone signals act as semaphores signaling game moves |
May 13, 2003 |
| When an event is generated in a game progressing in a first game device, the first game device sends a call signal to a second game device through network. When the second game device receives the call signal, an event is generated in the game progressing in the second game device. In th |
| 6556348 |
Multibeam optical system |
April 29, 2003 |
| A multibeam optical system that employs a multiline laser source emitting a laser beam at predetermined wavelengths, such as, for example, at wavelengths 488.0 nm and 514.5 nm, and a diffractive beam-dividing element having diffractive grating to divide the incident beam into nine di |
| 6538247 |
Method of detecting arrangement of beam spots |
March 25, 2003 |
| A positional relationship of a plurality of beam spots for a multi-beam imaging apparatus is detected. The imaging apparatus including a light source, a beam splitter that divides a received beam into a plurality of beams, a deflecting system that deflects the beams to scan, and an imagi |
| 6525295 |
Laser imaging apparatus |
February 25, 2003 |
| A laser imaging apparatus for forming an image on a surface of a substrate is provided with a laser source that emits a laser beam, a table mounting the substrate, the table being movable in a first direction within a predetermined plane, a scanning optical system which receives and defl |
| 6493130 |
Laser imaging device |
December 10, 2002 |
| A laser imaging device is provided with a laser source that emits a laser beam including a plurality of wavelength components. The wavelength components are divided by a dividing optical system, and at least two wavelength components are extracted and each of which is directed to a b |
| 6493126 |
Scanning lens and scanning optical system |
December 10, 2002 |
| Disclosed is a scanning optical system, which is provided with a light source portion, a deflector, which deflects a beam emitted from said light source portion, and a scanning lens for converging the beam deflected by the deflector onto a surface to be scanned. The scanning lens has a |
| 6473233 |
Multi-beam optical system |
October 29, 2002 |
| A multi-beam optical systems forms a plurality of beam spots on an object surface to be exposed. The system includes a light source that emits a light beam having a plurality of peak wavelengths, a diffraction beam-dividing element that divides the light beam into a plurality of ligh |
| 6469831 |
Multibeam optical system |
October 22, 2002 |
| A multibeam optical system that employs a laser source emitting a laser beam, a diffractive beam-dividing element that diffracts the laser beam emitted from the laser source to be divided into a plurality of diffracted beams exiting at different diffraction angle, and a compensating opti |
| 6466351 |
Multi-beam optical system |
October 15, 2002 |
| Disclosed is a multi-beam optical system that includes a laser source, a diffractive beam dividing element that divides the light beam emitted from the laser source into a plurality of light beams, a propagation optical system through which the divided light beams propagate, a polygon mi |
| 6466350 |
Scanning optical system |
October 15, 2002 |
| Disclosed is a scanning optical system that includes a semiconductor laser; a polygon mirror that deflects and scans a light beam emitted from the laser; and an imaging optical system that forms a beam spot on a photoconductive drum. The imaging optical system consists of a curved su |
| 6426824 |
Scanning optical system |
July 30, 2002 |
| A scanning optical system for scanning a light beam on an object surface in a main scanning direction is provided. The scanning optical system includes a light source, a polygonal mirror, and an optical system for focusing the light beam deflected by the polygonal mirror on the object |
| 6417953 |
Laser optical system |
July 9, 2002 |
| Disclosed is a laser optical system including a multiline laser source that emits a laser beam having a plurality of peak wavelengths, a wavelength separating optical system that separates the laser beam emitted from the laser source into two monochromatic beams, a pair of modulating opt |
| 6400486 |
Scanning optical system having diffractive lens surface |
June 4, 2002 |
| A scanning optical system is provided with a laser diode, a polygonal mirror and a scanning lens system. The scanning lens system has positive power. Further, the scanning lens system has a plurality of lens surfaces, one of which is formed with a diffractive lens structure for compensat |
| 6396646 |
Multi-beam optical system |
May 28, 2002 |
| A multi-beam optical system has a beam-dividing element that divides a light beam emitted by a light source into a plurality of light beams, which are emerged therefrom at different angles, respectively. A propagation optical system, through which the divided light beams propagate, i |
| 6388811 |
Diffractive optical element including a diffractive grating pattern |
May 14, 2002 |
| Disclosed is a diffractive optical element which includes a diffractive grating pattern on a base plate. The diffractive grating pattern includes a plurality of phase gratings arranged in parallel lines extending along a predetermined direction to cause diffraction of an incident beam. E |
| 6377264 |
Game screen display control method and character movement control method |
April 23, 2002 |
| Provided is a game screen display controlling method comprising the steps of displaying a first game screen obtained from a first projection of a virtual 3-D space; comparing the priority of the first projection with the priority of a second projection correlated with a predetermined are |
| 6310726 |
Image projecting device |
October 30, 2001 |
| An image projecting device is provided with a light source, a modulating device that modulates the light emitted by the light source in accordance with an image to be projected, and a projecting lens that receives the light emitted by the light source and modulated by the modulating devi |
| 6288831 |
Laser modulating optical system |
September 11, 2001 |
| Disclosed is a laser modulating optical system, which includes an argon laser that emits at a plurality of peak wavelengths, an acoustooptic modulator (AOM) that changes a direction of an emergent light by diffraction caused by input ultrasonic wave to take out a diffracted beam as a |
| 6264333 |
Reflection type projector |
July 24, 2001 |
| A reflection type projector includes a light source, a micro mirror device having many micromirrors two-dimensionally arranged, a separation prism and a projection lens. The separation prism is disposed between the light source and the micro mirror device. The separation prism is provide |
| 6219169 |
Beam shape compensation optical system |
April 17, 2001 |
| A beam shape compensation optical system includes a first anamorphic beam expander which expands a cross section of a parallel beam incident along a predetermined direction at a first magnification ratio M1 at least in a first direction which is perpendicular to the predetermined directi |
| 6212010 |
Diffractive optical element including a diffractive grating pattern |
April 3, 2001 |
| Disclosed is a diffractive optical element which includes a diffractive grating pattern ion a base plate. The diffractive grating pattern includes a plurality of phase gratings arranged in parallel lines extending along a predetermined direction to cause diffraction of an incident beam. |
| 6166843 |
Optical scanning system with single element refractive/reflective f.theta. lens and single elem |
December 26, 2000 |
| A scanning optical system includes a light deflector and a light emitter which emits a beam of light which scans a scanning surface along a main scanning direction. The beam of light emitted by the emitter is incident onto the light deflector as a non-convergent beam of light in the main |
| 6130782 |
Beam splitting element including a corrugated-surface-diffraction-grading |
October 10, 2000 |
| A beam splitting element includes a transparent substrate and a diffractive grating formed on the substrate for dividing an incident beam into a plurality of diffracted beams. The diffractive grating has a plurality of identically formed belt-shaped phase patterns that are arranged in |
| 6115146 |
Scanning-type image reading device |
September 5, 2000 |
| A scanning-type image reading device is provided which includes an image sensor, a rotating-type scanning system, a focusing mechanism, and a controller. The controller may control the focusing mechanism for each rotational position of the rotating-type scanning system. In a particular |
| 6113240 |
Reflection type projector |
September 5, 2000 |
| A reflection type projector includes a light source, a reflection type light modulating element, a projection lens, a condenser lens, and first and second adjusting mechanisms. An illumination light emitted from the light source passes through the condenser lens and enters into the r |
| 6104521 |
Scanning optical systems |
August 15, 2000 |
| A scanning optical system includes a light source for emitting a beam of light and a first optical system that changes a cross-sectional shape of the beam into an oblong shape along a main scanning direction. A light deflector deflects the oblong cross-sectioned beam of light in the main |
| 6091533 |
Reflection type scanning optical system |
July 18, 2000 |
| Disclosed is a scanning optical system, which is provided with a light source that emits a light beam, a deflector that deflects the light beam emitted by the light source to scan along a main scanning direction, and a single mirror that reflects the light beam deflected by the deflector |
| 6028688 |
Scanning optical system |
February 22, 2000 |
| A scanning optical system includes a light source for emitting a beam of light and a first optical system that changes a cross-sectional shape of the beam into an oblong shape along a main scanning direction. A light deflector deflects the oblong cross-sectioned beam of light in the main |
| 6021000 |
Beam splitting diffractive optical element |
February 1, 2000 |
| Disclosed is a diffractive optical element which includes a diffractive grating pattern on a base plate. The diffractive grating pattern includes a plurality of phase gratings arranged in parallel lines extending along a predetermined direction to cause diffraction of an incident beam. E |
| 5969347 |
Synchronizing apparatus of a cascade scanning optical system having tilting measurement of refle |
October 19, 1999 |
| A cascade scanning optical system which includes: a first laser scanning optical system having a first polygon mirror, provided with a plurality of first reflecting surfaces, for deflecting a first scanning laser beam to scan a part of a scanning surface to generate a first scanning line |
| 5963355 |
Optical scanning system with single element refractive/reflective F.theta. l .theta. lens |
October 5, 1999 |
| A scanning optical system includes a light deflector and a light emitter which emits a beam of light which scans a scanning surface along a main scanning direction. The beam of light emitted by the emitter is incident onto the light deflector as a non-convergent beam of light in the main |
