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121 CN111077668A
一种大幅面激光扫描系统的校正方法
Public
Publication/Patent Number: CN111077668A Publication Date: 2020-04-28 Application Number: 201911413737.5 Filing Date: 2019-12-31 Inventor: 王建刚   董义   徐章地   王亮   周宇   李创业   Assignee: 江苏华工激光科技有限公司   IPC: G02B26/10 Abstract: 本发明属于激光精密加工技术领域,具体提供了一种大幅面激光扫描系统的校正方法,包括:获取激光扫描系统的成像坐标幅面的理论坐标系,在所述成像坐标幅面上设置阵列标记以均匀等分所述成像幅面;在所述激光扫描系统的激光聚焦平面处设置平板,根据阵列标记在理论坐标系中的坐标调整激光参数射出激光,将所述阵列标记的各标记点一一对应打标至所述平板上;扫描所述平板得到带有打标点的电子图像;获取所述电子图像中各所述打标点的实际坐标系,将所述实际坐标系与理论坐标进行比对,并输出所述理论坐标系中各标记点的校正补偿值。该方案成本低廉,不受机械结构本身对校正精度的影响,更不会引入新的影响校正精度的因素,随时随地可以进行校正。
122 CN211149067U
一种基于MEMS微振镜结构的激光扫描生成设备
Valid
Publication/Patent Number: CN211149067U Publication Date: 2020-07-31 Application Number: 201922289168.X Filing Date: 2019-12-18 Inventor: 程进   徐乃涛   孙其梁   李宋泽   Assignee: 无锡微视传感科技有限公司   IPC: G02B26/10 Abstract: 一种基于MEMS微振镜结构的激光扫描生成设备,包括激光发射器、透镜单元、MEMS微振镜、反射单元、反馈结构和核心控制器,所述激光发射器发出点激光投射到透镜单元上,形成准直点激光或均匀线激光,投射到所述MEMS微振镜上,生成线结构光或面结构光,部分线结构光或面结构光被反射单元反射至所述反馈结构,反馈结构传输MEMS微振镜位置信息至核心控制器,核心控制器实时控制激光发射器和MEMS微振镜,投射目标图案。本方案通过设置反射单元改变光路,将反馈结构与MEMS微振镜集成在一起,从而缩小设备体积、降低装配难度,具有精度高、装配难度小、一体化程度高及稳定性好的优点。
123 CN111338077A
一种光纤扫描器、光纤扫描系统及驱动方法
Under Examination
Publication/Patent Number: CN111338077A Publication Date: 2020-06-26 Application Number: 201811553284.1 Filing Date: 2018-12-19 Inventor: 岳钟宇   王重阳   Assignee: 成都理想境界科技有限公司   IPC: G02B26/10 Abstract: 本发明公开了一种光纤扫描器、光纤扫描系统及驱动方法,用于降低光纤扫描器中光纤断裂的风险。所述光纤扫描器包括致动器和固定在致动器上的光纤,所述光纤的一端超出所述致动器形成光纤悬臂;所述致动器在驱动信号的作用下能同时产生第一方向和第二方向的振动,并带动所述光纤悬臂在所述第一方向和所述第二方向的合成方向上扫动;所述驱动信号中包含所述第一方向对应的第一预设驱动频率及所述第二方向对应的第二预设驱动频率,所述第一预设驱动频率大于等于所述第二预设驱动频率,所述光纤悬臂的N阶固有频率与所述第一预设驱动频率之间的差值处于第一阈值范围内,所述N为大于等于2的整数。
124 CN111190283A
一种扫描镜监测系统及方法
Under Examination
Publication/Patent Number: CN111190283A Publication Date: 2020-05-22 Application Number: 202010108275.2 Filing Date: 2020-02-21 Inventor: 周兴   王兆民   马宣   孙瑞   杨神武   Assignee: 深圳奥比中光科技有限公司   IPC: G02B26/10 Abstract: 本发明公开了一种扫描镜监测系统,包括控制器和扫描装置;其中,控制器包括处理器以及控制电路;扫描装置包括光学发射器/接收器以及扫描组件;所述处理器用于向控制电路发送命令控制输出;所述控制电路接收扫描组件的信号并根据处理器的命令控制输出;所述发射器/接收器用于向扫描组件发射光脉冲并接收反馈回的光信息;所述扫描组件用于将接收的光脉冲向外投射以及监测扫描装置的工作状态,并将监测信号发送至控制电路,其包括有安装框架、设置于安装框架上的扫描镜、触点以及与触点连接的监测电路。本发明通过对扫描组件进行实时监控,在系统出现异常或损坏时停止其工作、发起检查和矫正,可有效地保证人眼的安全,避免事故的发生。
125 CN210954481U
一种微型投影扫描系统
Valid
Publication/Patent Number: CN210954481U Publication Date: 2020-07-07 Application Number: 201922298574.2 Filing Date: 2019-12-19 Inventor: 徐丹慧   方国明   黄印   向思桦   Assignee: 成都英飞睿技术有限公司   IPC: G02B26/08 Abstract: 本申请公开了一种微型投影扫描系统,包括:第一MEMS扫描镜、中继反射装置、准直透镜、第二MEMS扫描镜和投影屏幕;其中,激光光束经第一MEMS扫描镜在水平方向进行第一扫描角度谐振运动一维扫描,再经中继反射装置多次反射,扩展和折叠第一MEMS扫描镜的水平方向视场,再经准直透镜对多次反射后的激光光束进行准直,以及对像素点的尺寸进行控制,最后经第二MEMS扫描镜将激光光束在垂直方向进行第二扫描角度准静态运动另一维扫描照射到投影屏幕上;第一扫描角度的最大值小于第二扫描角度的最大值。上述微型投影扫描系统结构简单,不仅可以实现二维图像扫描,还可以实现高分辨率和大视场角显示。
126 CN110832380A
用于校准数据眼镜的投影装置的方法以及用于执行方法的数据眼镜的投影装置
Under Examination
Title (English): A projection device for calibrating data glasses and a projection device for performing data glasses.
Publication/Patent Number: CN110832380A Publication Date: 2020-02-21 Application Number: 201880046465.7 Filing Date: 2018-06-21 Inventor: A.彼得森   T.格拉夫   Assignee: 罗伯特·博世有限公司   IPC: G02B26/10 Abstract: 本发明涉及用于校准数据眼镜的投影装置(100)的方法。该方法具有下列步骤:借助反射元件(112)在扫描角范围上扫描由光源(104)发出的光束(106),使得由反射元件(112)偏转的光束(106)扫过数据眼镜(400)的布置在数据眼镜(400)的眼镜片(402)上的转向元件的表面区域,该表面区域具有至少两个布置在数据眼镜(400)上的校正标记(132),其中,每个校正标记(132)布置在相对于布置在数据眼镜(400)的眼镜片(402)上的转向元件的表面的、预定的位置上;并且确定(520)至少两个校正标记(132)分别在反射元件(112)的哪种扫描调整中被光束(106)击中。本发明还涉及用于数据眼镜的投影装置(100)、数据眼镜以及转向元件。
127 JP6627994B2
OPTICAL DEFLECTOR, OPTICAL SCANNING DEVICE, IMAGE FORMING APPARATUS, AND VEHICLE
Publication/Patent Number: JP6627994B2 Publication Date: 2020-01-08 Application Number: 2019001588 Filing Date: 2019-01-09 Inventor: Ichii, Daisuke   Assignee: RICOH CO LTD   IPC: G02B27/01 Abstract: To provide an optical scanning device that can prevent occurrence of abnormal images on a scanning target surface, and stably scan the scanning target surface.SOLUTION: An optical scanning device 5 includes an LD 10, cover glass 20b arranged on an optical path of laser light (emission light) from the LD 10, and a mirror 20c that can be oscillated and has a reflection surface for reflecting the laser light transmitted through the cover glass 20b toward the cover glass 20b. The optical scanning device further includes a light deflector 20 that deflects the laser light from the LD 10 toward a scanning target surface, and a light shielding member 30 that is arranged on a light path of reflection light (surface reflection light) that is the laser light emitted from the LD 10 and reflected on the surface of the cover glass 20b.SELECTED DRAWING: Figure 1
128 WO2020005467A1
ADJUSTING A RESONANT FREQUENCY OF A SCANNING MIRROR
Publication/Patent Number: WO2020005467A1 Publication Date: 2020-01-02 Application Number: 2019035165 Filing Date: 2019-06-03 Inventor: Champion, Mark Alan   Baran, Utku   Gibson, Gregory Theodore   Miller, Joshua Owen   Davis, Wyatt Owen   Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC   IPC: G02B26/08 Abstract: Examples are disclosed that relate to scanning display systems. One example provides a display device comprising a controller, a light source, and a scanning mirror system. The scanning mirror system comprises a scanning mirror configured to scan light from the light source in at least one direction at a resonant frequency of the scanning mirror, and an electromechanical actuator system coupled with the scanning mirror and being controllable by the controller to adjust the resonant frequency of the scanning mirror.
129 JP2020008698A
光走査装置
Publication/Patent Number: JP2020008698A Publication Date: 2020-01-16 Application Number: 2018129200 Filing Date: 2018-07-06 Inventor: Assignee: IPC: G03G15/04 Abstract: 【課題】種々の反射ミラーの固有振動数を、回転多面鏡の回転周波数や駆動系の駆動周波数から、単に回避するだけでは、反射ミラーの固有振動数が周波数帯内に分散してしまい、回転多面鏡や駆動系の使用可能周波数帯を狭めてしまう。【解決手段】1つの反射ミラーの支持部間距離を基準とし、その他の反射ミラーの支持部間距離を基準に対し±5%の差に収まるようにする。【選択図】図3
130 WO2020010588A1
A LIGHT SCANNER
Publication/Patent Number: WO2020010588A1 Publication Date: 2020-01-16 Application Number: 2018095521 Filing Date: 2018-07-12 Inventor: Liu, Yurun   Cao, Peiyan   Assignee: SHENZHEN GENORIVISION TECHNOLOGY CO., LTD.   IPC: G02B26/10 Abstract: Disclosed herein is an apparatus suitable for light scanning (100). The apparatus (100) comprises a light source (102) and a photonic crystal (104). The light source (102) is configured to direct a light beam along an optical axis (105) toward the photonic crystal (104). The photonic crystal (104) is configured to direct the light beam along a direction at an angle relative to the optical axis (105). The angle is a function of wavelength of the light beam. The apparatus (100) may also comprise a partial toroid lens (106) configured to diverge the light beam received from the photonic crystal (104). The light source (102) of the apparatus (100) may be configured to change the wavelength continuously across a range of wavelengths.
131 US2020278192A1
SCATTERED RADIATION DEFECT DEPTH DETECTION
Publication/Patent Number: US2020278192A1 Publication Date: 2020-09-03 Application Number: 16/838,028 Filing Date: 2020-04-02 Inventor: Meeks, Steven W.   Nguyen, Hung Phi   Moghaddam, Alireza Shahdoost   Assignee: Lumina Instruments Inc.   IPC: G01B11/06 Abstract: An optical scanning system including a radiating source that outputs a light beam, a time varying beam reflector that reflects the light beam through a scan lens towards a transparent sample, a focusing lens configured to be irradiated by light scattered from the transparent sample, and a detector that is irradiated by the light scattered from the transparent sample. The detector outputs a signal that indicates an intensity of light measured by the detector. None of the light scattered from the transparent sample is blocked. The light scattered from the transparent sample is scattered from the top surface of the transparent sample, the bottom surface of the transparent sample, or any location in between the top surface of the transparent sample and the bottom surface of the transparent sample.
132 US2020333586A1
IMAGE FORMATION DEVICE
Publication/Patent Number: US2020333586A1 Publication Date: 2020-10-22 Application Number: 16/764,537 Filing Date: 2018-11-08 Inventor: Shibayama, Yasuyuki   Kishigami, Masahiro   Assignee: MAXELL, LTD.   IPC: G02B26/10 Abstract: An image formation device 1 forms a projection image 3 by projecting a pencil of rays 40 emitted from a light source onto a projection surface 2, the image formation device including a light scanning unit 10 that deflects and reflects the pencil of rays 40 in a first direction and a second direction intersecting with the first direction, and a projection system 9 that guides the deflected and reflected pencil of rays 40 to the projection surface 2. The projection system 9 is configured to allow the optical paths of principal rays 5, 6, 7, and 8 in each pencil of rays 40 incident on the projection system 9 to mutually intersect at a position between an incidence surface 11 and an emission surface 14 of an optical element that makes up the projection system 9.
133 US2020292765A1
CALIBRATION VALIDATION IN GALVANOMETRIC SCANNING SYSTEMS
Publication/Patent Number: US2020292765A1 Publication Date: 2020-09-17 Application Number: 16/817,357 Filing Date: 2020-03-12 Inventor: Small, Jay   Gross, Ken   Assignee: NLIGHT, INC.   IPC: G02B6/42 Abstract: Some embodiments may include a method of generating assessment data in a system including a galvanometric scanning system (GSS) having a laser device to generate a laser beam and an X-Y scan head module to position the laser beam on a work piece. The method may include selecting a dimension based on a desired accuracy for validation (and/or a characteristic of an imaging system in embodiments that utilize an imaging system). The method may include commanding the GSS to draw a mark based on a polygon or ellipse of the selected dimension around a predetermined target point associated with the work piece to generate assessment data, and following operation of the GSS based on said commanding, validating a calibration of the GSS using the assessment data (or an image thereof in embodiments that utilize an imaging system). Other embodiments may be disclosed and/or claimed.
134 EP3701282A1
A LIGHT SCANNER
Publication/Patent Number: EP3701282A1 Publication Date: 2020-09-02 Application Number: 17929772.6 Filing Date: 2017-10-26 Inventor: Cao, Peiyan   Liu, Yurun   Assignee: Shenzhen Genorivision Technology Co. Ltd.   IPC: G01S17/08
135 CN111694148A
控制装置、光扫描装置、显示装置以及控制方法
Public
Publication/Patent Number: CN111694148A Publication Date: 2020-09-22 Application Number: 202010172112.0 Filing Date: 2020-03-12 Inventor: 田中丰树   早川悦司   Assignee: 三美电机株式会社   IPC: G02B26/10 Abstract: 本发明提供一种控制装置、光扫描装置、显示装置以及控制方法,其目的在于抑制影像中的噪声。控制装置在激光扫描式的显示装置中使用,其具备:激光元件;电流源,其生成在所述激光元件流动的电流;以及控制部,其控制所述电流源来设定在所述激光元件流动的电流值,所述控制部在对不显示影像的非显示区域进行扫描的期间,将比所述激光元件开始振荡的阈值电流值小的第1驱动电流值设为所述电流值,在对显示影像的显示区域中的亮度等级为零的部分进行扫描的期间,将所述第1驱动电流以上且小于所述阈值电流值的第2驱动电流值设为所述电流值。
136 EP3264155B1
PIEZOELECTRIC ACTUATOR, LIGHT DEFLECTOR, AND IMAGE PROJECTION DEVICE
Publication/Patent Number: EP3264155B1 Publication Date: 2020-09-23 Application Number: 17178097.6 Filing Date: 2017-06-27 Inventor: Shinkawa, Mizuki   Suzuki, Shuichi   Assignee: Ricoh Company, Ltd.   IPC: G02B26/08
137 US2020278533A1
MIRROR UNIT
Publication/Patent Number: US2020278533A1 Publication Date: 2020-09-03 Application Number: 16/775,456 Filing Date: 2020-01-29 Inventor: Suzuki, Daiki   Ide, Tomoyuki   Morinaga, Yuki   Assignee: HAMAMATSU PHOTONICS K.K.   IPC: G02B26/08 Abstract: A mirror unit includes an optical scanning device, a frame member, and a window member. The frame member includes first and second wall portions facing each other in an X-axis direction. The first wall portion is higher than the second wall portion. The 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 of the optical scanning device. In a cross-section parallel to the X-axis direction, the first wall portion is separated from a first line passing through a first end at a side of the first wall portion in the mirror surface and a first corner portion formed at the side of the first wall portion by an outer surface opposite to the frame member and a first side surface in the window member.
138 US2020217936A1
LIDAR SYSTEM INCLUDING MULTIFACETED DEFLECTOR
Publication/Patent Number: US2020217936A1 Publication Date: 2020-07-09 Application Number: 16/730,120 Filing Date: 2019-12-30 Inventor: Galloway, Ryan Moore   Angus, Edward   Barber, Zeb William   Assignee: Blackmore Sensors & Analytics, LLC   IPC: G01S7/481 Abstract: A system and method for scanning of coherent LIDAR. The system includes a motor, a laser source configured to generate an optical beam, and a deflector. A first facet of the plurality of facets has a facet normal direction. The deflector is coupled to the motor and is configured to rotate about a rotation axis to deflect the optical beam from the laser source. The laser source is configured to direct the optical beam such that the optical beam is incident on the deflector at a first incident angle in a first plane, wherein the first plane includes the rotation axis, wherein the first incident angle is spaced apart from the facet normal direction for the first facet. A second facet of the plurality of facets includes an optical element configured to deflect the optical beam at the first incident angle into a deflected angle.
139 US2020142184A1
OPTICAL CIRCUIT, OPTICAL SCANNING DEVICE, OPTICAL MULTIPLEXER-DEMULTIPLEXER, WAVELENGTH MONITOR, OPTICAL MULTIPLEXER-DEMULTIPLEXER MODULE, AND WAVELENGTH MONITOR MODULE
Publication/Patent Number: US2020142184A1 Publication Date: 2020-05-07 Application Number: 16/095,768 Filing Date: 2016-07-11 Inventor: Sato, Yoshiya   Mochizuki, Keita   Assignee: Mitsubishi Electric Corporation   IPC: G02B26/10 Abstract: An optical circuit includes an input waveguide, an arrayed waveguide including a plurality of output waveguides, a coupler, an electrode capable of applying a voltage to each of the output waveguides of the arrayed waveguide, and a chip unit to which the input waveguide, the coupler, and a portion of the arrayed waveguide are fixed. The arrayed waveguide is divided into a phase shifter portion capable of generating a predetermined phase difference between adjacent ones of the output waveguides, a beam portion having a cantilever structure that is not fixed by the chip unit, and a waveguide portion between the phase shifter portion and the beam portion. The electrode is capable of applying positive and negative voltages to the beam portion of the arrayed waveguide such that positive and negative voltages are alternately applied to adjacent ones of the output waveguides.
140 EP3021154B1
LIGHT DEFLECTOR, AND DEVICES INCORPORATING THE SAME
Publication/Patent Number: EP3021154B1 Publication Date: 2020-01-15 Application Number: 15192251.5 Filing Date: 2015-10-30 Inventor: Akanuma, Goichi   Assignee: Ricoh Company, Ltd.   IPC: G02B26/08