公开(公告)号：US11720010B2

公开(公告)日：2023-08-08

申请号：US17539204

申请日：2021-12-01

申请人： Kazuhiro Fujita ,  Yohei Takano ,  Makoto Hirakawa ,  Shigeaki Imai

发明人： Kazuhiro Fujita ,  Yohei Takano ,  Makoto Hirakawa ,  Shigeaki Imai

IPC分类号： G03B21/20 ,  H04N9/31 ,  G02B26/00 ,  G02B27/14

CPC分类号： G03B21/204 ,  G02B26/008 ,  G02B27/141 ,  G03B21/208 ,  G03B21/2013 ,  G03B21/2066 ,  H04N9/3158 ,  H04N9/3161

摘要： A light source device includes a light source, a plurality of wavelength conversion units, and a plurality of optical systems. The plurality of wavelength conversion units each includes a wavelength conversion region configured to receive light emitted from the light source and emit light with a wavelength different from a wavelength of the received light. The plurality of optical systems are configured to form images of wavelength conversion regions of the plurality of wavelength conversion units. The light source is configured to irradiate the wavelength conversion units with light at a same timing. The plurality of optical systems are configured to cause the images of the wavelength conversion regions of the plurality of wavelength conversion units to be adjacent to or superimposed on each other.

公开(公告)号：US11537037B2

公开(公告)日：2022-12-27

申请号：US17509106

申请日：2021-10-25

申请人： Yohei Takano ,  Kazuhiro Fujita ,  Makoto Hirakawa ,  Shigeaki Imai

发明人： Yohei Takano ,  Kazuhiro Fujita ,  Makoto Hirakawa ,  Shigeaki Imai

IPC分类号： G03B21/20 ,  G02B27/10 ,  G03B33/12

摘要： A light source device includes: multiple light source units each including a light source to emit a first color light beam, each of the multiple light source units configured to: convert at least part of the first color light beam into a second color light beam emitted from an emitting region; and emit the second color light beam to form a conjugate image; and a light combiner to combine the conjugate images formed by the multiple light source units to form a combined image, in which the conjugate images partially overlap each other, on a plane of an entrance surface of a light uniformizing element along a central axis of the light uniformizing element. A conditional expression below is satisfied: 1.3>SC/SI>0.7 where SC is an area of the combined image, and SI is an area of the entrance surface of the light uniformizing element.

公开(公告)号：US11874592B2

公开(公告)日：2024-01-16

申请号：US17692208

申请日：2022-03-11

申请人： Kasumi Nakamura ,  Yohei Takano ,  Kazuhiro Fujita ,  Takashi Sasaki ,  Shigeaki Imai ,  Makoto Hirakawa

发明人： Kasumi Nakamura ,  Yohei Takano ,  Kazuhiro Fujita ,  Takashi Sasaki ,  Shigeaki Imai ,  Makoto Hirakawa

IPC分类号： G03B21/20 ,  G02B26/00

CPC分类号： G03B21/204 ,  G02B26/008 ,  G03B21/208 ,  G03B21/2013 ,  G03B21/2066

摘要： A light source device includes: a first light source to emit first color light; a second light source to emit second color light; a wavelength conversion unit to convert at least a portion of the first color light into a third color light; a light incident element to which the first color light, the second color light, and the third color light enter; a first filter to reflect the first color light toward the wavelength conversion unit; and a second filter to reflect the second color light toward the light incident element. The first filter and the second filter are separately disposed on an optical path of the third color light between the wavelength conversion unit and the light incident element.

公开(公告)号：US11812201B2

公开(公告)日：2023-11-07

申请号：US17724514

申请日：2022-04-20

申请人： Takashi Sasaki ,  Yohei Takano ,  Kasumi Nakamura ,  Kazuhiro Fujita ,  Makoto Hirakawa ,  Shigeaki Imai

发明人： Takashi Sasaki ,  Yohei Takano ,  Kasumi Nakamura ,  Kazuhiro Fujita ,  Makoto Hirakawa ,  Shigeaki Imai

IPC分类号： G02B27/09 ,  G02B27/10 ,  G03B21/20 ,  H04N9/31 ,  F21V8/00

CPC分类号： H04N9/317 ,  G02B6/0096 ,  G02B27/0994 ,  G02B27/10 ,  G03B21/204 ,  G03B21/2013 ,  G03B21/2066

摘要： A light guide optical device includes an optical path combiner including: a first deflector to deflect first light incident from a first direction to an emission direction; a second deflector to deflect second light incident from a second direction different from the first direction, to the emission direction; and a transmission portion between the first deflector and the second deflector, the transmission portion to transmit third light incident from a third direction different from each of the first direction and the second direction, to the emission direction. The optical path combining unit combines the first light, the second light, and the third light, and emits the combined light to the mission direction.

公开(公告)号：US11630288B2

公开(公告)日：2023-04-18

申请号：US17462109

申请日：2021-08-31

申请人： Yohei Takano ,  Shigeaki Imai ,  Kazuhiro Fujita ,  Makoto Hirakawa

发明人： Yohei Takano ,  Shigeaki Imai ,  Kazuhiro Fujita ,  Makoto Hirakawa

IPC分类号： G02B13/16 ,  G02B5/00 ,  G02B7/02 ,  G02B26/08 ,  G03B21/00 ,  G02B13/22 ,  G03B21/20

摘要： An image projection apparatus includes: a light source; an image display element including multiple micromirrors arranged in two dimensions, the multiple micromirrors forming an image display plane, each micromirror having a reflecting surface; and a projection optical system. Conditional expressions (1) and (2) below are satisfied: θ1≥14(deg)  (1) 1.2

公开(公告)号：US09283771B2

公开(公告)日：2016-03-15

申请号：US14598800

申请日：2015-01-16

申请人： Shigeaki Imai

发明人： Shigeaki Imai

IPC分类号： B41J2/47 ,  G01J1/44 ,  G01J1/16 ,  B41J2/447

CPC分类号： B41J2/47 ,  B41J2/447 ,  G01J1/16 ,  G01J2001/161

摘要： A method of manufacturing a print head includes a first step of finding first light quantity related data showing a light quantity in a light spot formed by lighting up each of light-emitting units by a driving unit by using a first threshold, a second step of finding first magnitude related data showing a magnitude in the light spot formed by lighting up the light-emitting unit by the driving unit by using a second threshold, a third step of finding first ratio data showing a ratio between the first light quantity related data and the first magnitude related data, a fourth step of finding light quantity correction data to the light-emitting unit forming the light spot as a target by using the first ratio data, and a fifth step of retaining the found light quantity correction data to the print head.

摘要翻译： 一种制造打印头的方法包括：第一步骤，找到第一光量相关数据，其显示通过使用第一阈值由驱动单元点亮每个发光单元形成的光点中的光量;第二步骤 找到第一幅度相关数据，显示通过使用第二阈值由驱动单元点亮发光单元而形成的光斑中的大小;第三步骤，找到第一比率数据，其示出第一光量相关数据与第一光量相关数据之间的比率 第一幅度相关数据，第四步骤，通过使用第一比率数据将形成光点的发光单元找到光量校正数据作为目标;以及第五步骤，将找到的光量校正数据保存到打印机 头。

公开(公告)号：US09013531B2

公开(公告)日：2015-04-21

申请号：US13795534

申请日：2013-03-12

申请人： Shinsuke Miyake ,  Shigeaki Imai

发明人： Shinsuke Miyake ,  Shigeaki Imai

IPC分类号： B41J15/14 ,  B41J27/00 ,  G03G15/04 ,  G02B26/10 ,  G02B3/00 ,  G02B26/12 ,  G03G15/043 ,  G02B13/00

CPC分类号： G03G15/04036 ,  G02B3/0087 ,  G02B13/0005 ,  G02B26/10 ,  G02B26/125 ,  G03G15/0435

摘要： An optical device includes: a light source that emits a light beam; a deflector that deflects the light beam in a main-scanning direction; and a scanning/image-forming optical system that includes a scanning lens that causes the light beam deflected by the deflector to converge to a scanned surface to form an image on the scanned surface. The scanning lens has refractive index gradient. At least one surface of the scanning lens is a tilt-decentered surface that has a tilt angle, which depends on a position in the main-scanning direction, in a sub-scanning direction. The tilt angle is set so as to compensate for variation, which results from the refractive index gradient, in direction of the light beam in the sub-scanning direction.

摘要翻译： 光学装置包括：发射光束的光源; 偏转器，其在主扫描方向上偏转光束; 以及包括扫描透镜的扫描/图像形成光学系统，其使由偏转器偏转的光束会聚到扫描表面，以在扫描表面上形成图像。 扫描透镜具有折射率梯度。 扫描透镜的至少一个表面是在副扫描方向上具有取决于主扫描方向上的位置的倾斜角的倾斜偏心表面。 倾斜角被设定为补偿在副扫描方向上的光束的方向上由折射率梯度引起的变化。

公开(公告)号：US08964240B2

公开(公告)日：2015-02-24

申请号：US13852109

申请日：2013-03-28

申请人： Shigeaki Imai

发明人： Shigeaki Imai

IPC分类号： H04N1/40 ,  G03G15/04

CPC分类号： G03G15/04045 ,  G03G15/04054

摘要： The method for producing an image forming apparatus includes emitting light beams from a printhead; optionally irradiating a photoreceptor with the light beams to form a latent image; optionally forming a visible image on a recording medium corresponding the latent image; obtaining plural pieces of information concerning a property of the light beams or lightness of the visible image at different positions in a direction; calculating variation width of N pieces of information corresponding to an attention area having a predetermined length in the direction; determining the number of pieces of information used for subjecting each of the N pieces of information to moving averaging, based on the variation width; when the number is two or more, subjecting each of the N pieces of information to moving averaging; and correcting quantities of light beams corresponding to the N pieces of information based on the average values.

摘要翻译： 用于制造图像形成装置的方法包括从打印头发射光束; 可选地用光束照射感光体以形成潜像; 可选地在对应于潜像的记录介质上形成可见图像; 获得关于光束的属性或可见图像在不同位置的方向的亮度的多条信息; 计算与在该方向上具有预定长度的关注区域对应的N条信息的变化宽度; 基于所述变化宽度来确定用于使所述N条信息中的每一个进行移动平均化的信息数; 当该数目为两个或更多时，使N条信息中的每一个移动平均; 以及基于平均值校正与N条信息对应的光束的量。

公开(公告)号：US20140036071A1

公开(公告)日：2014-02-06

申请号：US13956748

申请日：2013-08-01

申请人： Tadashi NAKAMURA ,  Shigeaki Imai

发明人： Tadashi NAKAMURA ,  Shigeaki Imai

IPC分类号： G01J1/04

CPC分类号： G01J1/0422 ,  G01C3/08 ,  G01S7/4811 ,  G01S7/4815 ,  G01S7/4817 ,  G01S17/42 ,  G01S17/936

摘要： Disclosed is an optical measurement device including a first light source, an optical element that condenses a light beam emitted from the first light source, a light irradiator that irradiates the light beam onto an object; and a photo detector that detects reflected light or scattered light of the light beam from the object through an imaging system, the light beam being irradiated onto the object, wherein a first optical path length from the first light source to a first conjugate image of the first light source by the optical element is different from a second optical path length from the photo detector to a second conjugate image of the photo detector by the imaging system at least in a first direction.

摘要翻译： 公开了一种光学测量装置，包括第一光源，冷凝从第一光源发射的光束的光学元件，将光束照射到物体上的光照射器; 以及光检测器，其通过成像系统检测来自物体的光束的反射光或散射光，所述光束照射到所述物体上，其中，从所述第一光源到所述第一光源的第一共轭图像的第一光路长度 光学元件的第一光源不同于至少在第一方向上由成像系统从光电检测器到光电检测器的第二共轭图像的第二光程长度。

公开(公告)号：US08411125B2

公开(公告)日：2013-04-02

申请号：US12908388

申请日：2010-10-20

申请人： Shigeaki Imai

发明人： Shigeaki Imai

IPC分类号： B41J2/47

CPC分类号： B41J2/451 ,  G03G15/04054 ,  G03G15/326 ,  G06K15/1247

摘要： Each of a plurality of pixels is formed with a group of a plurality of spots or a single spot. The barycentric position of each pixel is determined by the distribution of the spots or the position of the single spot. While the number of pixels on the exposure object is maintained in a first direction corresponding to the array direction of the light sources, an exposure feasible width on an exposure object can be adjusted in the first direction by setting the barycentric position at least in the first direction out of the first direction and a second direction that is the moving direction of the exposure object.

摘要翻译： 多个像素中的每一个形成有一组多个点或单个点。 每个像素的重心位置由点的分布或单个点的位置确定。 虽然曝光对象上的像素数量保持在对应于光源阵列方向的第一方向上，但曝光物体上的曝光可行宽度可以通过将重心位置至少设置在第一方向上而在第一方向上被调节 方向离开第一方向，第二方向是曝光对象的移动方向。