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11. 发明申请

US20160085174A1 OPTICAL DEVICE AND METHOD OF MANUFACTURING THE SAME 审中-公开
标题翻译：光学装置及其制造方法
公开(公告)号：US20160085174A1
公开(公告)日：2016-03-24
申请号：US14891182
申请日：2014-07-09
申请人： CANON KABUSHIKI KAISHA
发明人： Masayasu Teramura , Takeyoshi Saiga , Yu Miyajima
IPC分类号： B41J2/385
CPC分类号： G03G15/0415 , B41J2/447 , B41J2/45 , B41J2/451 , H04N1/036
摘要： Provided is an optical device capable of adjusting astigmatism due to a manufacturing error to attain excellent imaging performance while securing optical efficiency. The optical device includes: an imaging optical system including multiple lens arrays in an optical axis direction, the multiple lens arrays each including multiple lens units arrayed in a first direction perpendicular to the optical axis direction; a light source including multiple light-emitting points arrayed in the first direction; and first changing means for changing a first distance in the optical axis direction between the light source and one of the lens arrays, closest to the light source. The imaging optical system is configured to image the light source at equal magnification as an erecting image within a first cross-sectional plane, and image, within a second cross-sectional plane perpendicular to the first direction, the light source at a different magnification than at the first cross-sectional plane.
摘要翻译：提供一种光学装置，其能够由于制造误差而调节散光，以在确保光学效率的同时获得优异的成像性能。光学装置包括：成像光学系统，其在光轴方向上具有多个透镜阵列，所述多个透镜阵列具有沿与所述光轴方向垂直的第一方向排列的多个透镜单元; 光源，其包括沿所述第一方向排列的多个发光点; 以及第一改变装置，用于改变光源与最靠近光源的一个透镜阵列之间的光轴方向上的第一距离。成像光学系统被配置为以与第一横截面内的竖立图像相等的倍率成像光源，并且在垂直于第一方向的第二截面平面内的图像在与在第一个横截面。

12. 发明申请

US20150261119A1 EXPOSURE DEVICE AND IMAGE FORMING APPARATUS 审中-公开
标题翻译：曝光装置和图像形成装置
公开(公告)号：US20150261119A1
公开(公告)日：2015-09-17
申请号：US14433595
申请日：2013-09-27
申请人： CANON KABUSHIKI KAISHA
发明人： Noa Sumida , Takeyoshi Saiga , Yu Miyajima , Nobutaka Mizuno , Yojiro Matsuda
IPC分类号： B41J2/385
CPC分类号： G03G15/0409 , B41J2/451 , H01L51/50 , H04N1/02865 , H04N1/02895
摘要： An exposure device includes an element array that includes a plurality of organic electroluminescent elements and a lens array optical system that uses a lens array that includes a plurality of lenses, which forms images of light from the element array on a photosensitive body. In the exposure device, each electroluminescent element has a first electrode disposed on a light emitting side, a second electrode disposed on a light reflecting side, and a light emitting layer. In the exposure device, in each organic electroluminescent element, an optical path length L1 between a light emitting position of the light emitting layer and the second electrode is an optical path length within ±10% of an optical path length at which variation in light amount during light exposure is minimized.
摘要翻译：曝光装置包括包括多个有机电致发光元件的元件阵列和使用包括多个透镜的透镜阵列的透镜阵列光学系统，该透镜阵列在感光体上形成来自元件阵列的光的图像。在曝光装置中，每个电致发光元件具有设置在发光侧的第一电极，设置在光反射侧的第二电极和发光层。在曝光装置中，在各有机电致发光元件中，发光层的发光位置与第二电极之间的光路长度L1为光路长度的±10％以内的光程长度，在曝光期间最小化。

13. 发明授权

US08873114B2 Lens array, imaging apparatus, and image reading apparatus 有权
标题翻译：透镜阵列，成像装置和图像读取装置
公开(公告)号：US08873114B2
公开(公告)日：2014-10-28
申请号：US14139652
申请日：2013-12-23
申请人： Canon Kabushiki Kaisha
发明人： Yu Miyajima
IPC分类号： H04N1/04 , H04N1/46 , G02B5/32 , H01L31/00 , B41J2/435 , G02B3/00
CPC分类号： G02B3/0037
摘要： A lens array including: a plurality of imaging portions arrayed in a first direction; wherein each of the plurality of imaging portions includes a first optical system configured to form an intermediate image of an object and a second optical system configured to re-form the intermediate image of the object in a first cross section parallel to the first direction and a direction of optical axes of the imaging portions, and wherein in each of the plurality of imaging portions, an optical flux from an object height at which a light available efficiency becomes 90% is restricted by at least one of a first aperture surface of the first optical system and a second aperture surface of the second optical system, and the optical flux from an object height at which the light available efficiency becomes 10% is restricted by the aperture surface which restricts the optical flux from the object height at which the light available efficiency becomes 90%.
摘要翻译：一种透镜阵列，包括：沿第一方向排列的多个成像部分; 其中所述多个成像部分中的每一个包括构造成形成物体的中间图像的第一光学系统和被配置为在平行于所述第一方向的第一横截面中重新形成所述物体的中间图像的第二光学系统，以及成像部分的光轴的方向，并且其中在多个成像部分的每一个中，从光可获得效率变为90％的物体高度的光通量由第一孔径的第一孔径表面中的至少一个限制光学系统和第二光学系统的第二孔径表面，并且来自光可用效率变为10％的物体高度的光通量被限制光束从可用光的物体高度的孔径面限制效率达到90％。

14. 发明申请

US20220128938A1 METHOD FOR DETERMINING TYPE OF SHEET BY IMAGING SHEET 有权
公开(公告)号：US20220128938A1
公开(公告)日：2022-04-28
申请号：US17568748
申请日：2022-01-05
申请人： CANON KABUSHIKI KAISHA
发明人： Masafumi Monde , Mizuki Ishimoto , Yu Miyajima , Norio Matsui
IPC分类号： G03G15/00 , H05B47/115 , G03G15/04 , G02B17/08 , G03G15/043
摘要： A first light guide guides first light in a first light guiding path. The first light is of light irradiated from the light source to a sheet. A first detection unit receives reflected light from the sheet and outputs an image signal indicating an image of a surface of the sheet. A second light guide guides second light in a second light guiding path different from the first light guiding path. The second light is of the light irradiated from the light source and is different from the first light. A second detection unit receives the second light and output a detection signal corresponding to a light amount of the second light. A control unit controls a light emission amount of the light source based on the detection signal.

15. 发明申请

US20210218859A1 LIGHT SCANNING APPARATUS AND IMAGE FORMING APPARATUS 有权
公开(公告)号：US20210218859A1
公开(公告)日：2021-07-15
申请号：US17140356
申请日：2021-01-04
申请人： CANON KABUSHIKI KAISHA
发明人： Yu Miyajima
IPC分类号： H04N1/028 , H04N1/04
摘要： Provided is a light scanning apparatus including a deflector deflecting a light flux to scan a scanned surface, and an imaging optical element including an optical surface and guiding light flux from deflector to scanned surface. The light scanning apparatus causes a first marginal ray on a side closer to a first deflection point on deflector in a first cross section including first deflection point and being perpendicular to a main scanning section and a sub-scanning section, the first marginal ray being included in an on-axis light flux reflected by the optical surface after being deflected at first deflection point, to travel toward a position spaced apart from first deflection point in a sub-scanning direction by 4 mm or more in first cross section. A sub-scanning width of on-axis light flux on first cross section is smaller than a sub-scanning width of on-axis light flux on optical surface.

16. 发明授权

US10761450B2 Optical scanning apparatus and image forming apparatus 有权
公开(公告)号：US10761450B2
公开(公告)日：2020-09-01
申请号：US16539462
申请日：2019-08-13
申请人： CANON KABUSHIKI KAISHA
发明人： Masayasu Teramura , Yu Miyajima
IPC分类号： G03G15/04 , G02B26/12
摘要： The optical scanning apparatus includes a deflecting unit that scans first and second (FaS) scanned surfaces in main scanning direction by deflecting FaS light fluxes incident on a first deflecting surface at different angles with respect to main scanning section in sub-scanning section, and a first optical element including FaS optical portions which guide FaS light fluxes deflected by deflecting unit to FaS scanned surfaces, respectively. An incident surface of first optical element projects most toward deflecting unit at a position of surface vertex on the incident surface in sub-scanning section including the surface vertex. At least one of FaS exit surfaces of FaS optical portions is a sagittal tilt surface. A distance between surface vertices on FaS exit surfaces in sub-scanning section including an incident position of axial ray is larger than the corresponding distance in sub-scanning section including an incident position of outermost off-axis ray.

17. 发明申请

US20200057402A1 OPTICAL SCANNING APPARATUS AND IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：US20200057402A1
公开(公告)日：2020-02-20
申请号：US16539462
申请日：2019-08-13
申请人： CANON KABUSHIKI KAISHA
发明人： Masayasu Teramura , Yu Miyajima
IPC分类号： G03G15/04 , G02B26/12
摘要： The optical scanning apparatus includes a deflecting unit that scans first and second (FaS) scanned surfaces in main scanning direction by deflecting FaS light fluxes incident on a first deflecting surface at different angles with respect to main scanning section in sub-scanning section, and a first optical element including FaS optical portions which guide FaS light fluxes deflected by deflecting unit to FaS scanned surfaces, respectively. An incident surface of first optical element projects most toward deflecting unit at a position of surface vertex on the incident surface in sub-scanning section including the surface vertex. At least one of FaS exit surfaces of FaS optical portions is a sagittal tilt surface. A distance between surface vertices on FaS exit surfaces in sub-scanning section including an incident position of axial ray is larger than the corresponding distance in sub-scanning section including an incident position of outermost off-axis ray.

18. 发明授权

US10054790B2 Imaging optical system 有权
公开(公告)号：US10054790B2
公开(公告)日：2018-08-21
申请号：US15467295
申请日：2017-03-23
申请人： CANON KABUSHIKI KAISHA
发明人： Noa Sumida , Yu Miyajima
IPC分类号： G02B27/00 , G02B3/00
CPC分类号： G02B27/0018 , G02B3/0056 , G02B3/0062 , G02B5/003 , G02B13/24 , G03B27/522 , G03G15/0409
摘要： Provided is imaging optical system, including: a first lens array including a plurality of lens rows each having a plurality of lenses arrayed in main array direction, the plurality of lens rows arranged in sub-array direction; and a second lens array including a plurality of lens rows each having a plurality of lenses arrayed in main array direction, the plurality of lens rows being arranged in sub-array direction. The imaging optical system forms an erect image of object in main array cross section, and forms an inverted image of object in sub-array cross section. At least one of first and second lens arrays includes at least one of a scattering and light-shielding portions arranged between adjacent lens rows. D/Rs≤0.2 is satisfied, where D represents length of at least one of scattering and light-shielding portions in sub-array direction, and Rs represents an effective diameter of imaging optical system in sub-array direction.

19. 发明授权

US09541756B2 Optical apparatus, image forming apparatus, and image reading apparatus 有权
标题翻译：光学装置，图像形成装置和图像读取装置
公开(公告)号：US09541756B2
公开(公告)日：2017-01-10
申请号：US14655082
申请日：2013-12-18
申请人： CANON KABUSHIKI KAISHA
发明人： Takeyoshi Saiga , Masayasu Teramura , Yu Miyajima
IPC分类号： G03G15/04 , G02B27/00 , G02B3/00 , G02B13/08 , G02B13/26 , G02B13/24 , H04N1/024 , H04N1/028
CPC分类号： G02B27/0075 , G02B3/005 , G02B3/0062 , G02B13/08 , G02B13/24 , G02B13/26 , G02B27/0018 , G03G15/04036 , G03G15/04054 , G03G15/04063 , H04N1/02409 , H04N1/02418 , H04N1/0282
摘要： An optical apparatus includes: a light source including multiple light-emitting points arrayed in a first direction; and an imaging optical system including multiple lens optical systems arrayed in the first direction. The imaging optical system forms images of the multiple light-emitting points on a light-receiving surface. In a first cross-section and in a second cross-section, half-value of a maximum value of angle of divergence of an imaging optical flux input to the light-receiving surface, resolution, and a size of each image of the plurality of light-emitting points formed on the light-receiving surface, satisfy predetermined conditions.
摘要翻译：光学装置包括：光源，其包括沿第一方向排列的多个发光点; 以及包括沿第一方向排列的多个透镜光学系统的成像光学系统。成像光学系统在光接收表面上形成多个发光点的图像。在第一横截面和第二横截面中，输入到光接收表面的成像光通量的发散角的最大值的半值，分辨率和多个图像的每个图像的大小在受光面上形成的发光点满足规定的条件。

20. 发明授权

US09217947B2 Image forming device 有权
公开(公告)号：US09217947B2
公开(公告)日：2015-12-22
申请号：US14747970
申请日：2015-06-23
申请人： CANON KABUSHIKI KAISHA
发明人： Tomokazu Morita , Takeyoshi Saiga , Yu Miyajima , Seiji Mishima
IPC分类号： G03G15/01 , G03G15/04 , G03G15/043
CPC分类号： G03G15/04036 , G03G15/04063 , G03G15/043 , G03G2215/0132
摘要： An exposure unit includes a lens group having a plurality of lenses arrayed in a first direction and an element array which is arranged to face the lens group and includes a plurality of organic EL elements arrayed in parallel with the first direction on a substrate, a drive circuit including a plurality of TFT circuits for controlling luminance per unit time of the organic EL element is arranged on the substrate, and the TFT circuit controls the luminance of the organic EL element based on a signal created by an area gray scale method.

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