| Patent Number |
Title Of Patent |
Date Issued |
| 7554709 |
Optical scanning apparatus and image forming apparatus employing this apparatus |
June 30, 2009 |
| An optical scanning apparatus including a light source, deflection unit configured to deflect a light flux emitted by the light source, a first optical system configured to condense a divergent light flux emitted by the light source, a second optical system configured to focus the de |
| 7548252 |
Optical scanning apparatus and color image forming apparatus using the same |
June 16, 2009 |
| An optical scanning apparatus and a color image forming apparatus using the same, in which streak-shaped density unevenness is reduced to prevent image deterioration: each of scanning surfaces is simultaneously scanned with light beams emitted from light source units and scanning lines a |
| 7542189 |
Light scanning apparatus and image forming apparatus using the light scanning apparatus |
June 2, 2009 |
| A light scanning apparatus including a semiconductor laser which emits a light beam having a wavelength equal to or less than 450 nm, an incidence optical system which makes the light beam, emitted from the semiconductor laser, incident on a deflector for scanning in deflection, an imagi |
| 7522324 |
Optical scanning device and image forming apparatus using the same |
April 21, 2009 |
| An optical scanning device and an image forming apparatus having the same include a light source, a deflecting system, an imaging optical system with at least one imaging optical element for imaging a light beam deflected by the deflecting system on a surface to be scanned, and at le |
| 7508563 |
Optical scanning device and image forming apparatus using the same |
March 24, 2009 |
| An optical scanning device includes plural light source devices, a deflecting device having deflecting surfaces, an input optical system and a plurality of imaging optical systems, wherein a plurality of scan surfaces are simultaneously scanned by the deflecting device, wherein each |
| 7453616 |
Optical scanner configured so a principal ray of an incident beam from a light source to a defle |
November 18, 2008 |
| Optical scanners are configured so a principal ray of an incident beam from a light source device to a deflector and a principal ray of a scanning beam from the deflector to a scanned surface travel on the same side (or opposite sides) of an optical axis of an optical element(s) resp |
| 7397590 |
Optical scanning apparatus and image forming apparatus employing this apparatus |
July 8, 2008 |
| At least one exemplary embodiment is directed to an optical scanning apparatus that employs a short wave light source to constantly maintain a spot having a tiny diameter, even when an environmental temperature change occurs, by employing a lens and/or a diffractive optical element. |
| 7380720 |
Optical scanning system and image forming apparatus using the same |
June 3, 2008 |
| An optical scanning system having an imaging optical system for imaging a plurality of light beams deflected by a deflecting surface of a optical deflector upon different scan surfaces. The imaging optical system includes an imaging optical element which has at least one optical surf |
| 7355771 |
Optical scanning apparatus |
April 8, 2008 |
| An optical scanning device has a light shield plate where a scanning line emitted from a light source passes through a scanning lens, and is reflected by a rotation polygon mirror, and after that, passes through the scanning lens again, and is reflected by the scanning lens at the op |
| 7034859 |
Optical scanning device and image forming apparatus using the same |
April 25, 2006 |
| Disclosed is an optical scanning device which includes a light source device, a deflecting system for deflecting a light beam emitted from the light source device, and a scanning optical system for scanning a surface to be scanned, with the light beam deflected by the deflecting system, |
| 6774924 |
Scanning optical device with single lens scanning optical element |
August 10, 2004 |
| Disclosed is a scanning optical device and an image forming apparatus using the same, wherein the scanning optical device includes a scanning optical element provided by a single lens. In relation to a predetermined one of two optical surfaces of the single lens having a larger refractiv |
| 6239885 |
Image reading apparatus and adjusting method for the same |
May 29, 2001 |
| In an image reading apparatus having an easy-toad-just optical system, a unit is composed of a first sub-unit including an image forming lens and a second sub-unit including a solid-state image pickup element. The first sub-unit and the second sub-unit are mutually adjusted in position i |
| 6064057 |
Color image reading apparatus |
May 16, 2000 |
| In a color image reading apparatus, a plurality of line sensors are arranged on a same substrate and an image of an object is formed on the sensors by an imaging optical system. A blazed diffraction grating is disposed in an optical path between the imaging optical system and the sen |
