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161 US2020271920A1
OPTICAL SCANNING DEVICE AND METHOD OF ADJUSTING OPTICAL SCANNING DEVICE
Publication/Patent Number: US2020271920A1 Publication Date: 2020-08-27 Application Number: 16/608,035 Filing Date: 2018-03-16 Inventor: Hirata, Yoshiaki   Konno, Nobuaki   Ito, Takahiko   Ishida, Kozo   Kajiyama, Yoshitaka   Assignee: Mitsubishi Electric Corporation   IPC: G02B26/08 Abstract: An optical scanning device includes a mirror part having a mirror surface configured to reflect light, N support cantilevers supporting the mirror part swingably, N drive cantilevers, and a plurality of driving piezoelectric elements secured on N drive cantilevers. The mirror part precesses by setting the frequency of AC voltage applied to each of a plurality of piezoelectric elements to a determined common value and setting the phase of AC voltage applied to each of a plurality of piezoelectric elements to a value determined according to the position of each piezoelectric element.
162 CN111130638A
一种定向可见光通信系统
Under Examination
Publication/Patent Number: CN111130638A Publication Date: 2020-05-08 Application Number: 201911313957.0 Filing Date: 2019-12-19 Inventor: 汪扬帆   杜双龙   赵晶若   Assignee: 汪扬帆   IPC: H04B10/116 Abstract: 本发明主要涉及通信领域,公开了一种定向可见光通信系统,包括照明光源、扫描镜、控制器,扫描镜上包括反射面,照明光源出射调制照明光至扫描镜的反射面上,控制器根据通信接收设备的位置控制扫描镜转动,使扫描镜反射的调制照明光照射至通信接收设备所在的位置处,从而实现利用单套照明光源和一个扫描镜进行跟踪式定向可见光通信,系统简单稳定可靠。
163 CN210776030U
一种基于光电反馈的谐振式扫描镜
Valid
Publication/Patent Number: CN210776030U Publication Date: 2020-06-16 Application Number: 201922073796.4 Filing Date: 2019-11-26 Inventor: 夏长锋   何耀军   宋秀敏   郑文会   乔大勇   Assignee: 西安知微传感技术有限公司   IPC: G02B26/10 Abstract: 本实用新型属于微光机电领域,具体涉及一种基于光电反馈的谐振式扫描镜。解决了现有技术中谐振式扫描镜反馈集成难,反馈成本高,精度差等问题。包括扫描镜、扫描镜驱动模块、控制器、光发射模块以及光接收模块;扫描镜驱动模块的输出端与扫描镜电连接,扫描镜驱动模块的输入端与控制器的输出端电连接;光发射模块用于发射准直光源至扫描镜背面;光接收模块用于接收经扫描镜背面反射的光束,并转换为同步扫描电脉冲信号;光接收模块的输出端与控制器的输入端电连接。本实用新型基于较电容式角度反馈装置的谐振式扫描镜具有高信噪比,电路简易的优点。较基于光学PSD式的角度反馈装置的谐振式扫描镜具有低成本,易集成的优点。
164 CN109633894B
光学扫描设备和图像形成设备
Valid
Publication/Patent Number: CN109633894B Publication Date: 2020-07-17 Application Number: 201811633814.3 Filing Date: 2018-12-29 Inventor: 王超   邵哲   Assignee: 珠海奔图电子有限公司   IPC: G02B26/10 Abstract: 本发明提供一种光学扫描设备和图像形成设备,包括光源,用于发射光束;第一光学单元,用于使所述光源发出的光束在主扫描方向上准直,在副扫描方向上聚焦;光学偏转器,用于偏转所述光源发射的光束;成像光学系统,用于将所述光学偏转器偏转的光束引导至被扫描面上成像;所述光学偏转器在以最大偏转角度对所述光源发射的光束进行偏转时,所述成像光学系统的出射光束在所述主扫描方向上与被扫描面的法线形成最大入射夹角φ,且成像光学系统成像在被扫描面上的光斑的光斑倾斜率满足:从而降低转印图像边缘模糊的可能性,提高了光学扫描成像质量。
165 US2020301129A1
SEMICONDUCTOR DEVICE
Publication/Patent Number: US2020301129A1 Publication Date: 2020-09-24 Application Number: 16/552,207 Filing Date: 2019-08-27 Inventor: Kwon, Honam   Ishii, Koichi   Fujiwara, Ikuo   Suzuki, Kazuhiro   Assignee: Kabushiki Kaisha Toshiba   IPC: G02B26/08 Abstract: According to an embodiment, a semiconductor device includes a first actuator, a second actuator, a first frame provided between the first actuator and the second actuator, a first connection member connecting the first actuator and the first frame to each other, a second connection member connecting the first actuator and the first frame to each other at a position different from a position at which the first connection member connects the first actuator and the first frame to each other, a third connection member connecting the second actuator and the first frame to each other, a fourth connection member connecting the second actuator and the first frame to each other at a position different from a position at which the third connection member connects the second actuator and the first frame to each other.
166 CN211506028U
一种兼具环向扫描功能的显微成像系统
Publication/Patent Number: CN211506028U Publication Date: 2020-09-15 Application Number: 202020627821.9 Filing Date: 2020-04-23 Inventor: 余谢飞   Assignee: 余谢飞   IPC: G02B26/10 Abstract: 本实用新型公开了一种兼具环向扫描功能的显微成像系统,包括轴向竖直的采集筒和光源筒,采集筒整体固定不动,光源筒能够环绕采集筒转动,光源筒内部出射光入射至待成像面后,再发射入采集筒并入射至采集筒内的图像传感器,当光源筒环向转动时实现环向成像功能。本实用新型能够保持待成像不动的情况下实现环向区域的采集成像,并且具有成像清晰可靠的优点。
167 EP3713227A1
VARIABLE AND INTERLEAVED SCANNING IN LASER PROJECTORS
Publication/Patent Number: EP3713227A1 Publication Date: 2020-09-23 Application Number: 20174727.6 Filing Date: 2012-05-26 Inventor: Rumreich, Mark   Assignee: Thomson Licensing   IPC: H04N9/31 Abstract: A method of operating a miniature projector that comprises: receiving image data to project; generating light beams responsive to the image data; scanning the light beams according to a first pattern from a first edge to an ending edge in the screen to form at least one image, the first pattern being a wave pattern of scan lines such that amplitudes oscillate along a first axis as the beams progressively scan along a second axis, the second axis being substantially perpendicular to the first axis, wherein the first pattern has a first oscillation from the first edge that is directed in a first direction along the first axis; and scanning the light beams according to a second pattern from a second edge to a second ending edge for the screen to form at least another image, the second pattern being a wave pattern of scan lines such that amplitudes oscillate along the first axis as the beams progressively scan along the second axis, wherein the second pattern has a first oscillation from the second edge that is directed in a second direction along the first axis that is opposite the first direction, wherein a scan velocity modulation is employed in the second axis by causing the light beams to spend more time on a bright area than on a dark area of an image.
168 EP3712684A1
DISPLAY SYSTEM, MOBILE OBJECT, AND OPTICAL ELEMENT
Publication/Patent Number: EP3712684A1 Publication Date: 2020-09-23 Application Number: 20161616.6 Filing Date: 2020-03-06 Inventor: Ogino, Shimpei   Assignee: Ricoh Company, Ltd.   IPC: G02B27/01 Abstract: A display system (1) includes an optical device (15) through which light diverges, a light deflector (13) configured to scan a light emitted from a light source (11) in a main scanning direction and a sub-scanning direction orthogonal to the main scanning direction to form an intermediate image (40) on the optical device (15), and an imaging optical system (30) configured to project diverging light (153, 157, 158) diverging through the optical device (15) to form an image. An effective diameter a of a mirror of the light deflector (13) for the intermediate image (40) and a ratio c of a size of an image (45) formed by the imaging optical system (30) to the effective diameter a satisfy a condition in an equation given below.
169 CN211627939U
一种基于声光偏转器的快速阵列扫描成像装置
Publication/Patent Number: CN211627939U Publication Date: 2020-10-02 Application Number: 202020699554.6 Filing Date: 2020-04-30 Inventor: 程雍   罗华   Assignee: 武汉铢寸科技有限公司   IPC: G02B26/10 Abstract: 本实用新型公开了一种基于声光偏转器的快速阵列扫描成像装置,包括安装座、安装板和安装杆,所述安装座的底端固定安装有安装板,且安装板的底端中心位置处开设有安装槽,所述安装槽的内壁中间位置处固定安装有固定杆,所述固定杆的外壁套接有安装杆,所述安装板的内部开设有通孔,且通孔的内部插设有转杆,所述转杆靠近安装槽的一端外壁套接有挤压套,所述转杆的远离安装槽的外壁套接有轴套。本实用新型通过设置有安装板和安装槽,可以方便对扫描成像仪整体进行安装,且安装快速,方便对扫描成像仪进行更换,使用方便,转杆和支撑杆可以对安装杆进行支撑,使扫描成像仪在快速使用时的稳定性更好,使用方便。
170 EP3712679A1
OPTICAL SCANNER, DISPLAY SYSTEM, AND MOBILE OBJECT
Publication/Patent Number: EP3712679A1 Publication Date: 2020-09-23 Application Number: 20161859.2 Filing Date: 2020-03-09 Inventor: Tanaka, Hiroaki   Assignee: Ricoh Company, Ltd.   IPC: G02B26/10 Abstract: An optical scanner (10) includes a light source (11); a light deflector (13) configured to deflect light emitted from the light source (11) to scan in a main scanning direction and a sub-scanning direction perpendicular to the main scanning direction; a photosensor (61) having a detection field, configured to detect the light scanning the detection field; and a controller (17). The controller (17) is configured to control the light source (11) to emit light to scan an irradiation area; and shift the irradiation area between a first position overlapping with the detection field and a second position other than the first position in the sub-scanning direction.
171 US10634582B2
Lens characteristic evaluation device and method of operating lens characteristic evaluation device
Publication/Patent Number: US10634582B2 Publication Date: 2020-04-28 Application Number: 16/139,101 Filing Date: 2018-09-24 Inventor: Saika, Makoto   Assignee: TOPCON CORPORATION   IPC: G01M11/02 Abstract: A lens characteristic evaluation device includes: a scanning optical system configured to scan a surface of a test lens with a linear luminous flux; a Hartmann plate provided on a side opposite to the scanning optical system with respect to the test lens and having a plurality of two-dimensionally arranged pinholes, the Hartmann plate being configured to transmit the linear luminous flux which has passed through the test lens and radiated on the pinholes by the scanning performed by the scanning optical system; a screen on which the linear luminous flux having passed through the Hartmann plate is projected; and a photographing optical system provided on a side opposite to the Hartmann plate with respect to the screen and configured to photograph the screen while the scanning with the linear luminous flux is being performed by the scanning optical system.
172 US2020159143A1
OPTICAL WRITING DEVICE AND IMAGE FORMING APPARATUS
Publication/Patent Number: US2020159143A1 Publication Date: 2020-05-21 Application Number: 16/673,842 Filing Date: 2019-11-04 Inventor: Taniyama, Akira   Takahashi, Masahiko   Tajima, Naoki   Kurosawa, Takashi   Taniguchi, Hajime   Assignee: KONICA MINOLTA, INC.   IPC: G03G15/04 Abstract: An optical writing device includes: a deflector that deflects and scans light; optical elements; and a housing that holds the deflector and the optical element, wherein a support plate of the housing has an enclosed inner region that is substantially surrounded by a vibration suppressor and a vibration transmission blocker and supports the deflector, and the support plate also has a flat portion having a peninsular shape facing the vibration transmission blocker in the enclosed inner region, and an element holder for at least one or more of the optical elements having optical sensitivity in a vibration direction of the housing is disposed outside the enclosed inner region.
173 US2020168181A1
Tracking System and Related Positioning and Calibration Methods
Publication/Patent Number: US2020168181A1 Publication Date: 2020-05-28 Application Number: 16/556,216 Filing Date: 2019-08-29 Inventor: Lin, Jia-yu   Chen, Chih-chiang   Assignee: ACER INCORPORATED   IPC: G09G5/38 Abstract: A tracking system for positioning a user's location comprise a scan device including a light scanning module for generating a scan light source, where the light scanning module includes a point light source, a prism, a reflector and a synchronization processing module, the prism rotates with a rotation speed, the synchronization processing module is used to control the reflector to rotate with an angle according to the rotation speed, so that the light emitted to the prism is reflected to a specific direction to form the scan light source, a head mounted displayer, which includes a plurality of receivers for detecting the scan light source, for generating information about the scan light source, and an computing device for calculating the location of the user based on the information.
174 US2020201029A1
OPTICAL SCANNING DEVICE
Publication/Patent Number: US2020201029A1 Publication Date: 2020-06-25 Application Number: 16/702,734 Filing Date: 2019-12-04 Inventor: Maruyama, Yuki   Assignee: MITSUMI ELECTRIC CO., LTD.   IPC: G02B26/08 Abstract: An optical scanning device includes a mirror that includes a mirror reflection surface, and torsion bars that support the corresponding sides of the mirror and cause the mirror to rotate. The torsion bars are formed of a silicon active layer whose surface is exposed.
175 US2020124823A1
ACTUATOR FRAME FOR SCANNING MIRROR
Publication/Patent Number: US2020124823A1 Publication Date: 2020-04-23 Application Number: 16/164,526 Filing Date: 2018-10-18 Inventor: Wang, Jincheng   Davis, Wyatt Owen   Nystrom, Michael James   Miller, Joshua Owen   James, Richard Allen   Assignee: Microsoft Technology Licensing, LLC   IPC: G02B7/182 Abstract: Examples are disclosed that relate to actuator frames for scanning mirror systems. In one example an actuator frame for a scanning mirror assembly comprises a mounting member comprising a first side and an opposite second side. A first moveable member comprises a first interior side that defines a first gap and a second gap with the first side of the mounting member. A second moveable member comprises a second interior side that defines a third gap and a fourth gap with the second side of the mounting member. A first hinge connects a central portion of the mounting member with the first moveable member, and a second hinge connects the central portion of the mounting member with the second moveable member.
176 US2020150243A1
LASER SCANNER
Publication/Patent Number: US2020150243A1 Publication Date: 2020-05-14 Application Number: 16/098,419 Filing Date: 2017-05-03 Inventor: Di, Chele Andrea   Aprile, Paolo   Rigoni, Giacomo   Pattini, Luca   Alessi, Nicola   Assignee: Datalogic IP Tech S.r.l.   IPC: G01S7/481 Abstract: A laser scanner (10) including a housing (12) having a window (14), a light source (34) for emitting a light beam (32), the window (14) being transparent to the wavelength(s) of the light beam (32), a scanning mirror (30) rotatable about an axis of rotation (X) for deflection of the light beam (32) toward a scanning area (SC) so that the light beam (32) periodically sweeps at least one sweep surface, and for deflection of return light from objects or persons in the scanning area (SC) into a light collection path, a motor (24) for rotating the scanning mirror (30), a photodetector element (42) for generating an electric signal, arranged in said light collection path, wherein the motor (24), the light source (34), and the photodetector element (42) are all housed within the housing (12) on a same side with respect to said at least one sweep surface.
177 US2020049978A1
MOVABLE REFLECTIVE ELEMENT
Publication/Patent Number: US2020049978A1 Publication Date: 2020-02-13 Application Number: 16/340,366 Filing Date: 2017-11-01 Inventor: Ogata, Kenji   Kurogi, Shogo   Assignee: DAI-ICHI SEIKO CO., LTD.   IPC: G02B26/08 Abstract: An actuator includes an arm starting end having a piezoelectric element, a first end of the arm starting end connected to an inner side of a fixed frame the arm starting end extending in a straight line, along a Y-axis direction through a gap between the fixed frame and a mirror surface, from the first end to beyond a middle point of an outer side of the mirror surface; an arm terminating end including a first end connected to the middle point of the outer side of the mirror surface, the arm terminating end extending parallel to the arm starting end; and an arm relay that connects a second end of the arm starting end to a second end of the arm terminating end, the arm relay being formed in a zigzag.
178 US2020249470A1
MIRROR UNIT
Publication/Patent Number: US2020249470A1 Publication Date: 2020-08-06 Application Number: 16/775,467 Filing Date: 2020-01-29 Inventor: Suzuki, Daiki   Ide, Tomoyuki   Morinaga, Yuki   Assignee: HAMAMATSU PHOTONICS K.K.   IPC: G02B26/10 Abstract: In a mirror unit, a first wall portion is higher than a second wall portion. A window member is disposed on a top surface of the first wall portion and a top surface of the second wall portion and is inclined with respect to a mirror surface. When any one of first to fourth wall portions is set as a first reference wall portion, in a cross-section perpendicular to the first reference wall portion, a first line passing through a first end at a side of the first reference wall portion in the mirror surface and a first corner portion formed at the side of the first reference wall portion by an outer surface and a first side surface in the window member intersects the first wall portion. A wiring portion includes a portion extending inside a base and leads outside a frame member.
179 US2020026069A1
SYSTEMS, DEVICES, AND METHODS FOR LASER PROJECTION IN WEARABLE HEADS-UP DISPLAYS
Publication/Patent Number: US2020026069A1 Publication Date: 2020-01-23 Application Number: 16/508,850 Filing Date: 2019-07-11 Inventor: Nicholson, Stuart James Myron   Assignee: North Inc.   IPC: G02B26/10 Abstract: There is provided a wearable heads-up display (WHUD) having a laser projector to generate a display image. The display image can have a pixel having a pixel on-time. Furthermore, the laser projector can have a laser diode to emit laser light. The WHUD can also include a controller communicatively coupled to the laser diode. The controller can modulate the laser diode during the pixel on-time to be off during a laser off-time of the pixel on-time and on during a laser on-time of the pixel on-time. Moreover, the WHUD can include a holographic optical element to receive the laser light from the laser projector and redirect the laser light towards an eye of a user of the WHUD.
180 US2020004010A1
MICROSTRUCTURED FIBER OPTIC OSCILLATOR AND WAVEGUIDE FOR FIBER SCANNER
Publication/Patent Number: US2020004010A1 Publication Date: 2020-01-02 Application Number: 16/565,119 Filing Date: 2019-09-09 Inventor: Dalrymple, Timothy Mark   Carlisle, Clinton   Schaefer, Jason   Duenner, Andrew C.   Mathur, Vaibhav   Assignee: Magic Leap, Inc.   IPC: G02B26/10 Abstract: Described are optical fibers and scanning fiber displays comprising optical fibers. The disclosed optical fibers include a plurality of mass adjustment regions, such as gas-filled regions, positioned between a central waveguiding element and an outer periphery for reducing a mass of the optical fiber as compared to an optical fiber lacking the plurality of mass adjustment regions.