公开(公告)号：US20080068690A1

公开(公告)日：2008-03-20

申请号：US11853397

申请日：2007-09-11

Applicant: Daisuke ICHII

Inventor： Daisuke ICHII

IPC: G02B26/10 ,  B41J27/00

CPC classification number: G02B26/123 ,  B41J2/471 ,  G02B19/0014 ,  G02B19/0057 ,  G02B19/0095 ,  G02B26/124 ,  G02B27/0966

Abstract: A deflecting unit deflects a plurality of light fluxes from a light source including a plurality of light emitting elements arranged in two-dimensional array. An coupling optical system between the light source and the deflecting unit includes an optical coupling element that collimates the light fluxes and a line-imaging element that images the light fluxes near the deflecting unit in a sub-scanning direction. A holding unit holds the line-imaging element in a state that a position of the line-imaging element is adjusted with respect to a direction parallel to the sub-scanning direction. A scanning optical system condenses the deflected light fluxes on the scanning surface.

Abstract translation: 偏转单元从包括以二维阵列排列的多个发光元件的光源偏转多个光束。 在光源和偏转单元之间的耦合光学系统包括准直光束的光耦合元件和在副扫描方向上对偏转单元附近的光束进行成像的线成像元件。 保持单元将行成像元件保持在相对于与副扫描方向平行的方向调整线摄像元件的位置的状态。 扫描光学系统将偏转的光束聚集在扫描表面上。

公开(公告)号：US20080024849A1

公开(公告)日：2008-01-31

申请号：US11780762

申请日：2007-07-20

Applicant: Yoshinori Hayashi ,  Shunichi Sato ,  Daisuke Ichii

Inventor： Yoshinori Hayashi ,  Shunichi Sato ,  Daisuke Ichii

IPC: G02B26/08

CPC classification number: G02B26/123 ,  B82Y20/00 ,  H01S5/18311 ,  H01S5/18358 ,  H01S5/3211 ,  H01S5/3432 ,  H01S5/3434 ,  H01S5/3436 ,  H01S5/423

Abstract: 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 systems is a sub scanning direction, a distance between the outermost light emitting diodes of a light source in the main scanning direction is longer than that in the sub scanning direction.

Abstract translation: 在光扫描装置中，当假设从偏转器缺陷的光束的扫描方向为主扫描方向，并且与主扫描方向正交的方向和第一和第二光学系统的光轴为 副扫描方向，主扫描方向上的光源的最外侧的发光二极管之间的距离比副扫描方向的长。

公开(公告)号：US20070253048A1

公开(公告)日：2007-11-01

申请号：US11740070

申请日：2007-04-25

Applicant: Kohji SAKAI ,  Yoshinori Hayashi ,  Takeshi Ueda ,  Daisuke Ichii ,  Kenichiroh Saisho

Inventor： Kohji SAKAI ,  Yoshinori Hayashi ,  Takeshi Ueda ,  Daisuke Ichii ,  Kenichiroh Saisho

IPC: G02B26/08

CPC classification number: G02B27/42 ,  G02B26/124 ,  G02B27/4227 ,  G02B27/4283

Abstract: 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.

Abstract translation: 光学扫描装置包括用于将从多个发光单元发射的光束引导到光学偏转器的第一光学系统和用于聚焦光束以光学扫描要扫描的表面的第二光学系统。 第一光学系统和第二光学系统中的至少一个包括具有衍射面的树脂透镜。 衍射面包括衍射部分和折射部分。 衍射部分的功率和折射部分的功率彼此抵消。

公开(公告)号：US10783606B2

公开(公告)日：2020-09-22

申请号：US15346133

申请日：2016-11-08

Applicant: Hiromichi Atsuumi ,  Yuki Hayashi ,  Daisuke Ichii ,  Naoki Nakamura

Inventor： Hiromichi Atsuumi ,  Yuki Hayashi ,  Daisuke Ichii ,  Naoki Nakamura

IPC: G06T3/00 ,  B60K35/00 ,  G02B26/10 ,  G02B27/01 ,  G09G3/02 ,  G02B27/10 ,  G02B27/28 ,  G02B30/26 ,  G09G3/00

Abstract: An image display apparatus includes an image forming unit and a vehicle provided with the image display apparatus. The image forming unit includes a light source unit configured to emit light, an optical scanner configured to scan the light emitted from the light source unit two-dimensionally in a main scanning direction and a sub-scanning direction, and an intermediate image forming unit configured to form an intermediate image by the light scanned by the optical scanner. The image forming unit satisfies 0.3

公开(公告)号：US20200241294A1

公开(公告)日：2020-07-30

申请号：US16715932

申请日：2019-12-16

Applicant: Daisuke Ichii

Inventor： Daisuke Ichii

IPC: G02B27/01 ,  B60R1/00 ,  G02B27/00 ,  G02B26/10

Abstract: An optical scanner, a display system, and a mobile object. The optical scanner includes a light source to emit irradiation light, a light deflector to scan the irradiation light emitted from the light source in a first scanning direction and in a second scanning direction intersecting with the first scanning direction, circuitry to turn on the light source for a predetermined length of time, and a photodetector to detect the irradiation light for the predetermined length of time. The predetermined length of time includes a timing at which the light deflector turns a scanning direction in the first scanning direction or the second scanning direction. The display system includes the optical scanner, a divergent part through which the irradiation light scanned by the light deflector is projected and diverges, and an imaging optical system to reflect projection light projected through the divergent part.

公开(公告)号：US09864195B2

公开(公告)日：2018-01-09

申请号：US15066448

申请日：2016-03-10

Applicant: Naoki Nakamura ,  Daisuke Ichii ,  Hiromichi Atsuumi ,  Naoki Miyatake ,  Yuki Hayashi

Inventor： Naoki Nakamura ,  Daisuke Ichii ,  Hiromichi Atsuumi ,  Naoki Miyatake ,  Yuki Hayashi

IPC: G02B27/14 ,  G09G5/00 ,  G02B27/01 ,  G02B27/10 ,  G02B26/10 ,  G03B21/20

CPC classification number: G02B27/0101 ,  G02B26/10 ,  G02B26/101 ,  G02B26/105 ,  G02B27/01 ,  G02B27/104 ,  G02B2027/011 ,  G02B2027/013 ,  G02B2027/0141 ,  G02B2027/0145 ,  G03B21/2013 ,  G03B21/2033 ,  G09G5/00

Abstract: An image display apparatus includes a light source device including a light source unit; a scanning optical system including an image forming unit on which an intermediate image is formed by light from the light source unit; and a virtual image optical system configured to guide light of the intermediate image by using a reflecting mirror and a curved transmissive reflection member. The scanning optical system includes an optical scanning unit configured to scan the light from the light source unit in a main scanning direction and a sub-scanning direction of the image forming unit. The image forming unit is a transmissive member curved with a convex surface toward the reflecting mirror.

公开(公告)号：US20150055204A1

公开(公告)日：2015-02-26

申请号：US14456161

申请日：2014-08-11

Applicant: Daisuke ICHII

Inventor： Daisuke ICHII

IPC: G02B26/10 ,  G02B26/08

CPC classification number: G02B26/0833 ,  G02B26/0841 ,  G02B26/101 ,  G02B27/0018 ,  G02B27/0101

Abstract: An optical scanning unit includes a light source, an optical deflector that includes a light transmission window disposed on a light path from the light source and a rotatable mirror that includes a reflecting surface to reflect light that goes through the light transmission window into the light transmission window and to deflect the light from the light source toward a surface, and a light shield disposed on a light path of reflected light of the light from the light source reflected by a surface of the light transmission window.

Abstract translation: 光学扫描单元包括光源，光偏转器，其包括设置在来自光源的光路上的透光窗和可旋转反射镜，该反射镜包括反射表面，以将透过透光窗的光反射到光传输 并且使来自光源的光朝向表面偏转;以及光罩，其设置在来自光源的光的反射光的光路上，该光源由透光窗的表面反射。

公开(公告)号：US08670472B2

公开(公告)日：2014-03-11

申请号：US12698522

申请日：2010-02-02

Applicant: Hibiki Tatsuno ,  Daisuke Ichii

Inventor： Hibiki Tatsuno ,  Daisuke Ichii

IPC: H01S3/10

CPC classification number: G02B26/123 ,  G02B26/124 ,  H01S5/005

Abstract: An optical scanning device includes a vertical-cavity surface-emitting laser light source that emits laser beams perpendicular to a top surface thereof; a first optical system that couples the beams from the light source; a deflecting unit that deflects the beams; a second optical system that guides the beams from the first optical system to the deflecting unit; a third optical system that focuses the beams deflected by the deflecting unit into an optical spot on a scanned surface; and a light-quantity adjusting element disposed between the light source and the deflecting unit and having a substrate formed of a first and second surfaces. The first surface of the light-quantity adjusting element is coated with neutral density coating and the second surface is coated with antireflection coating so that reflectance of the second surface is made smaller than reflectance of the first surface.

Abstract translation: 光学扫描装置包括发射垂直于其顶表面的激光束的垂直腔表面发射激光光源; 耦合来自光源的光束的第一光学系统; 偏转单元，其使梁偏转; 将光束从第一光学系统引导到偏转单元的第二光学系统; 第三光学系统，其将由偏转单元偏转的光束聚焦到扫描表面上的光点中; 以及光量调节元件，其设置在所述光源和所述偏转单元之间，并具有由第一表面和所述第二表面形成的基板。 光量调节元件的第一表面涂覆有中性密度涂层，并且第二表面涂覆有抗反射涂层，使得第二表面的反射率小于第一表面的反射率。

公开(公告)号：US08134766B2

公开(公告)日：2012-03-13

申请号：US11853397

申请日：2007-09-11

Applicant: Daisuke Ichii

Inventor： Daisuke Ichii

IPC: G02B26/08

CPC classification number: G02B26/123 ,  B41J2/471 ,  G02B19/0014 ,  G02B19/0057 ,  G02B19/0095 ,  G02B26/124 ,  G02B27/0966

Abstract: A deflecting unit deflects a plurality of light fluxes from a light source including a plurality of light emitting elements arranged in two-dimensional array. An coupling optical system between the light source and the deflecting unit includes an optical coupling element that collimates the light fluxes and a line-imaging element that images the light fluxes near the deflecting unit in a sub-scanning direction. A holding unit holds the line-imaging element in a state that a position of the line-imaging element is adjusted with respect to a direction parallel to the sub-scanning direction. A scanning optical system condenses the deflected light fluxes on the scanning surface.

Abstract translation: 偏转单元从包括以二维阵列排列的多个发光元件的光源偏转多个光束。 在光源和偏转单元之间的耦合光学系统包括准直光束的光耦合元件和在副扫描方向上对偏转单元附近的光束进行成像的线成像元件。 保持单元将行成像元件保持在相对于与副扫描方向平行的方向调整线摄像元件的位置的状态。 扫描光学系统将偏转的光束聚集在扫描表面上。

公开(公告)号：US20110221857A1

公开(公告)日：2011-09-15

申请号：US13042935

申请日：2011-03-08

Applicant: Hibiki TATSUNO ,  Daisuke Ichii ,  Nobuyuki Arai

Inventor： Hibiki TATSUNO ,  Daisuke Ichii ,  Nobuyuki Arai

IPC: B41J27/00

CPC classification number: B41J2/471 ,  G02B26/125

Abstract: An optical scanner includes a light source, a deflector and a scanning optical system. The scanning optical system includes a first optical system including at least one resin scanning lens, and a second optical system between the target surface and one resin scanning lens. The second optical system includes at least one of a folding mirror(s) and a glass sheet(s), wherein m1+g2=m2+g1 is satisfied wherein m1 and g1 are respectively number of the folding mirror(s) and number of the glass sheet(s) to which the first ray has a shorter optical path than the second ray does, m2 and g2 are respectively number of the folding mirror(s) and number of the glass sheet(s) to which the first ray has a longer optical path than the second ray does.

Abstract translation: 光学扫描器包括光源，偏转器和扫描光学系统。 扫描光学系统包括包括至少一个树脂扫描透镜的第一光学系统和在目标表面和一个树脂扫描透镜之间的第二光学系统。 第二光学系统包括折射镜和玻璃板中的至少一个，其中m1 + g2 = m2 + g1，其中m1和g1分别是折叠镜的数量和 第一光线具有比第二光线短的光路的玻璃板，m2和g2分别是折射镜的数量和第一光线具有的玻璃板的数量 比第二根光线更长的光路。