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公开(公告)号：US09036261B2
公开(公告)日：2015-05-19
申请号：US13972027
申请日：2013-08-21
CPC分类号： F21V5/002 , F21V5/004 , G02B5/0215 , G02B5/0221 , G02B5/0278 , G09G5/10
摘要： An optical element using visible light from wavelengths λS to λL (λL>λS), is formed of a translucent material having refractive indexes nS and nL, respectively, for light having the wavelengths λS and λL. The optical element includes an incident face; an exit face; and a micro convexo-concave structure used as an anti-reflection structure (ARS), being formed at least one of the incident face and the exit face. An average distance P between adjacent micro convexo-concave structures satisfies condition (1) P≦0.8·λS/nS. Dimensionless parameters mS and mL satisfy condition (2) 0.8≦mS≦1.1 and condition (3) 0.8≦mL≦1.1. The parameters mS and mL, an average height H, the wavelengths λS and λL, and the refractive indexes nS and nL of the micro convexo-concave structure satisfy condition (4) mS·λS/(2·nS)≦H≦mL·λL/(2·nL).
摘要翻译： 使用波长λS〜λL（λL>λS）的可见光的光学元件分别由具有波长λS和λL的光的折射率nS和nL的半透明材料形成。 光学元件包括入射面; 出口面 以及用作防反射结构（ARS）的微型凹凸结构，形成入射面和出射面中的至少一个。 相邻的微凹凸结构之间的平均距离P满足条件（1）P＆nlE; 0.8·λS/ nS。 无量纲参数mS和mL满足条件（2）0.8＆nlE; mS＆nlE; 1.1和条件（3）0.8＆nlE; mL＆nlE; 1.1。 微凹凸结构的参数mS和mL，平均高度H，波长λS和λL以及折射率nS和nL满足条件（4）mS·λS/（2·nS）＆nlE; H＆nlE; mL ·λL/（2·nL）。
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公开(公告)号：US20140071026A1
公开(公告)日：2014-03-13
申请号：US13972027
申请日：2013-08-21
CPC分类号： F21V5/002 , F21V5/004 , G02B5/0215 , G02B5/0221 , G02B5/0278 , G09G5/10
摘要： An optical element using visible light from wavelengths λS to λL (λL>λS), is formed of a translucent material having refractive indexes nS and nL, respectively, for light having the wavelengths λS and λL. The optical element includes an incident face; an exit face; and a micro convexo-concave structure used as an anti-reflection structure (ARS), being formed at least one of the incident face and the exit face. An average distance P between adjacent micro convexo-concave structures satisfies condition (1) P≦0.8·λS/nS. Dimensionless parameters mS and mL satisfy condition (2) 0.8≦mS≦1.1 and condition (3) 0.8≦mL≦1.1. The parameters mS and mL, an average height H, the wavelengths λS and λL, and the refractive indexes nS and nL of the micro convexo-concave structure satisfy condition (4) mS·λS/(2·nS)≦H≦mL·λL/(2·nL).
摘要翻译： 使用波长λS到λL（λL>λS）的可见光的光学元件分别由具有λS和λL波长的光的折射率为nS和nL的半透明材料形成。 光学元件包括入射面; 出口面 以及用作防反射结构（ARS）的微型凹凸结构，形成入射面和出射面中的至少一个。 相邻的微凹凸结构之间的平均距离P满足条件（1）P @0..8λ/λ。 无量纲参数mS和mL满足条件（2）0.8 @ mS @ 1.1和条件（3）0.8 @ mL @ 1.1。 微凸凹结构的参数mS和mL，平均高度H，波长λS和λL以及折射率nS和nL满足条件（4）mS·λS/（2·nS）@ H @ mL· lambdaL /（2·nL）。
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公开(公告)号：US09500778B2
公开(公告)日：2016-11-22
申请号：US14163224
申请日：2014-01-24
摘要： An optical element having an antireflection effect includes an incident plane and an emission plane and a conical microstructure formed on at least one plane of the incident plane and the emission plane. The conical microstructure includes a first structure formed of a plurality of conical microprojections with an average height H1 and a second structure formed of a plurality of conical microrecesses with an average height H2. The average height H1 satisfies an inequality H1≦1/3*λ/n and the average height H2 satisfies an inequality H2≦1/3*λ/n. An average pitch P between the first structure and the second structure satisfies following conditions: H1/2≦P≦1/3*λ/n, and H2/2≦P≦1/3*λ/n, in which the use wavelength is defined as λ and the refractive index relative to the use wavelength is n.
摘要翻译： 具有防反射效果的光学元件包括在入射面和发射面的至少一个平面上形成的入射面和发射面以及圆锥形微结构。 圆锥形微结构包括由具有平均高度H1的多个锥形微喷射体形成的第一结构和由具有平均高度H2的多个锥形微过程形成的第二结构。 平均高度H1满足不等式H1≤1/ 3 *λ/ n，平均高度H2满足不等式H2≤1/ 3 *λ/ n。 第一结构和第二结构之间的平均间距P满足以下条件：H1 /2≤P≤1/ 3 *λ/ n，H2 /2≤P≤1/ 3 *λ/ n，其中使用波长 被定义为λ，相对于使用波长的折射率为n。
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公开(公告)号：US09935420B2
公开(公告)日：2018-04-03
申请号：US14869336
申请日：2015-09-29
申请人： Kazuma Izumiya , Tsuyoshi Suzudo , Naoto Jikutani , Yasuhiro Higashi , Kentaroh Hagita , Masayuki Numata , Nobuyuki Arai
发明人： Kazuma Izumiya , Tsuyoshi Suzudo , Naoto Jikutani , Yasuhiro Higashi , Kentaroh Hagita , Masayuki Numata , Nobuyuki Arai
IPC分类号： H01S3/113 , H01S3/16 , H01S3/067 , H01S5/183 , H01S5/00 , G02B27/09 , F02P23/04 , H01S3/094 , H01S5/022 , H01S5/42 , H01S3/06 , H01S3/0941
CPC分类号： H01S3/113 , F02P23/04 , G02B27/0955 , H01S3/0612 , H01S3/0627 , H01S3/06708 , H01S3/094049 , H01S3/094053 , H01S3/09415 , H01S3/1611 , H01S3/1643 , H01S5/005 , H01S5/02284 , H01S5/183 , H01S5/423
摘要： A laser device is provided including a surface emitting laser array configured to emit light, an optical system disposed in an optical path of light that is emitted from the surface emitting laser, a laser resonator which the light passed through the optical system enters, where the optical system includes a first optical element configured to collimate the light emitted from the surface emitting laser, and a second optical element configured to collect and condense the light collimated by the first optical element.
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公开(公告)号：US11075497B2
公开(公告)日：2021-07-27
申请号：US15889434
申请日：2018-02-06
申请人： Kentaroh Hagita , Yoichi Ishikawa , Naoto Jikutani , Toshiyuki Ikeoh , Yuzuru Sasaki , Yusuke Okura
发明人： Kentaroh Hagita , Yoichi Ishikawa , Naoto Jikutani , Toshiyuki Ikeoh , Yuzuru Sasaki , Yusuke Okura
IPC分类号： F02P23/00 , F02P23/04 , H01S3/034 , H01S3/094 , H01S3/02 , G02B1/118 , H01T13/06 , H01S3/06 , H01S3/00 , H01S3/0941 , H01S3/16 , F02P13/00 , H01S3/113 , H01S5/42
摘要： Laser devices include a light source that emits a laser beam, an optical system that concentrates the laser beam emitted from the light source, an optical window through which the laser beam exited from the optical system passes, a housing that accommodates the optical system, and an optical window holding member fixed to the housing. The optical window holding member holds the optical window. In the first laser device, the optical window has a face or a protruding face through which the laser beam passes. When the optical window has the face, the face is flush with an edge of the optical window holding member and a film is formed on the face. When the optical window has the protruding face, the protruding face protrudes with reference to the edge of the optical window holding member and a film is formed on the protruding face.
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公开(公告)号：US11047292B2
公开(公告)日：2021-06-29
申请号：US16253694
申请日：2019-01-22
摘要： An ignition device configured to ignite a fuel included in an air-fuel mixture supplied to a main combustion chamber of an internal combustion engine. The ignition device includes a partition member that forms a precombustion chamber that encloses an ignition point of a fuel. The partition member has a plurality of communicating holes communicating between the main combustion chamber and the precombustion chamber. The ignition device further includes a first interference member that protrudes inward from an inner surface of the partition member.
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公开(公告)号：US10559942B2
公开(公告)日：2020-02-11
申请号：US15919254
申请日：2018-03-13
申请人： Kentaroh Hagita , Naoto Jikutani , Masaki Hiroi
发明人： Kentaroh Hagita , Naoto Jikutani , Masaki Hiroi
IPC分类号： F02P23/00 , H01S5/183 , F02P23/04 , G02B19/00 , H01S5/42 , H01S3/094 , H01S3/0941 , G03G15/04
摘要： A laser device and an internal combustion engine. The laser device includes a light source configured to emit light, an optical system configured to concentrate the light emitted from the light source, a housing configured to accommodate the optical system, and a window disposed to the housing, to which the light passed through the optical system is incident. The window includes an optical window through which the light exited from the optical system passes, an optical window holding member configured to hold the optical window, a joint configured to join the optical window to the optical window holding member, and a protective layer disposed to a face of the joint. The internal combustion engine includes the laser device according to claim, and a combustion chamber configured to burn fuel to produce inflammable gas. In the internal combustion engine, the fuel is ignited by the laser device.
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公开(公告)号：US20180269656A1
公开(公告)日：2018-09-20
申请号：US15919254
申请日：2018-03-13
申请人： Kentaroh Hagita , Naoto Jikutani , Masaki Hiroi
发明人： Kentaroh Hagita , Naoto Jikutani , Masaki Hiroi
CPC分类号： H01S5/18313 , F02P13/00 , F02P23/04 , G02B19/0057 , G03G15/04 , H01S3/094053 , H01S3/09415 , H01S3/113 , H01S5/18377 , H01S5/423
摘要： A laser device and an internal combustion engine. The laser device includes a light source configured to emit light, an optical system configured to concentrate the light emitted from the light source, a housing configured to accommodate the optical system, and a window disposed to the housing, to which the light passed through the optical system is incident. The window includes an optical window through which the light exited from the optical system passes, an optical window holding member configured to hold the optical window, a joint configured to join the optical window to the optical window holding member, and a protective layer disposed to a face of the joint. The internal combustion engine includes the laser device according to claim, and a combustion chamber configured to burn fuel to produce inflammable gas. In the internal combustion engine, the fuel is ignited by the laser device.
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