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。

公开(公告)号：US20090002792A1

公开(公告)日：2009-01-01

申请号：US12230077

申请日：2008-08-22

Applicant: Kohji Sakai ,  Yoshinori Hayashi ,  Daisuke Ichii

Inventor： Kohji Sakai ,  Yoshinori Hayashi ,  Daisuke Ichii

IPC: G02B26/10

CPC classification number: G02B26/125 ,  G02B26/124 ,  G02B27/0031 ,  G02B27/0037 ,  G02B27/4227 ,  G02B27/4283

Abstract: 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.

公开(公告)号：US07417777B2

公开(公告)日：2008-08-26

申请号：US11844643

申请日：2007-08-24

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

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

IPC: G02B26/08

CPC classification number: G02B26/124 ,  G02B5/1876 ,  H04N1/1135 ,  H04N2201/0471 ,  H04N2201/04729 ,  H04N2201/04732 ,  H04N2201/04744

Abstract: A coupling lens arranged on an optical path of an optical beam from a VCSEL, which has a refraction plane and a diffraction plane that respectively change a power according to a temperature change and suppresses a beam-waist position change in a main-scanning direction and a sub-scanning directions on the scanning surface caused by the temperature change, by a wavelength change of the optical beam caused by power changes of the refraction plane and the diffraction plane and the temperature change. A deflecting unit deflects the optical beam that passed through the coupling lens. A scanning optical system condenses a deflected optical beam on the scanning surface.

Abstract translation: 耦合透镜，布置在来自VCSEL的光束的光路上，所述光束具有根据温度变化分别改变功率的折射面和衍射面，并抑制主扫描方向上的束腰位置变化， 通过由折射平面和衍射面的功率变化引起的光束的波长变化和温度变化，由温度变化引起的扫描表面上的副扫描方向。 偏转单元使通过耦合透镜的光束偏转。 扫描光学系统将偏转的光束冷凝在扫描表面上。

公开(公告)号：US20070211325A1

公开(公告)日：2007-09-13

申请号：US11712400

申请日：2007-03-01

Applicant: Daisuke Ichii

Inventor： Daisuke Ichii

IPC: G02B26/08

CPC classification number: G02B26/125

Abstract: A second scanning lens has a refracting power in a sub-scanning direction, and an optical element-deforming unit that changes a position of the center of curvature of the second scanning lens in the sub-scanning direction to a direction substantially parallel to the sub-scanning direction. Further, a function Cs(y) of a curvature in the sub-scanning direction of the scanning lens deformed by the optical element-deforming unit in the scanning lens is set to have only one extreme value within a mirror surface region on a first surface of the lens.

Abstract translation: 第二扫描透镜在副扫描方向上具有折射力，以及光学元件变形单元，其将副扫描方向上的第二扫描透镜的曲率中心的位置改变为与子扫描方向基本平行的方向 扫描方向。 此外，由扫描透镜中的光学元件变形单元变形的扫描透镜的副扫描方向的曲率的函数Cs（y）被设定为在第一表面的镜面区域内仅具有一个极限值 的镜头。

公开(公告)号：US11016294B2

公开(公告)日：2021-05-25

申请号：US16715932

申请日：2019-12-16

Applicant: Daisuke Ichii

Inventor： Daisuke Ichii

IPC: G02B27/01 ,  B60R1/00 ,  G02B26/10 ,  G02B27/00 ,  B60R11/00 ,  G03B21/625 ,  G03B33/06 ,  G03B21/10

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：US20190156454A1

公开(公告)日：2019-05-23

申请号：US16255575

申请日：2019-01-23

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

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

IPC: G06T3/00 ,  B60K35/00 ,  G02B27/10 ,  G02B27/22 ,  G02B27/01 ,  G02B26/10 ,  G02B27/28

CPC classification number: G06T3/005 ,  B60K35/00 ,  B60K2370/31 ,  B60K2370/334 ,  B60K2370/70 ,  G02B26/105 ,  G02B27/0101 ,  G02B27/0149 ,  G02B27/106 ,  G02B27/225 ,  G02B27/283 ,  G02B2027/0141 ,  G09G3/002 ,  G09G3/025 ,  G09G2380/10 ,  G09G2380/12

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：US10078217B2

公开(公告)日：2018-09-18

申请号：US14885246

申请日：2015-10-16

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

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

IPC: G02B27/01 ,  G02B3/00

CPC classification number: G02B27/0101 ,  G02B3/0006 ,  G02B2027/011 ,  G02B2027/0118 ,  G02B2027/013 ,  G02B2027/0145

Abstract: An image display device includes an image forming unit configured to emit light forming an image; and a concave mirror configured to reflect the light emitted from the image forming unit toward a transparent reflecting member. The image forming unit includes a transparent member on which the image is formed or which forms the image, the transparent member being curved bulging toward the concave mirror.

公开(公告)号：US20160266384A1

公开(公告)日：2016-09-15

申请号：US15066448

申请日：2016-03-10

Applicant: Naoki NAKAMURA ,  Daisuke Ichii ,  Hiromichi Atsumi ,  Naoki Miyatake ,  Yuki Hayashi

Inventor： Naoki NAKAMURA ,  Daisuke Ichii ,  Hiromichi Atsumi ,  Naoki Miyatake ,  Yuki Hayashi

IPC: G02B27/01 ,  G02B26/10

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.

Abstract translation: 一种图像显示装置，包括：光源装置，包括光源单元; 扫描光学系统，包括：图像形成单元，其中来自所述光源单元的光形成中间图像; 以及虚拟图像光学系统，被配置为通过使用反射镜和弯曲透射反射构件来引导中间图像的光。 扫描光学系统包括：光扫描单元，被配置为沿着图像形成单元的主扫描方向和副扫描方向扫描来自光源单元的光。 图像形成单元是朝向反射镜弯曲成凸面的透射构件。