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1 WO2020020000A1
LASER SCANNING PROJECTION DEVICE, APPARATUS, AND DETECTION METHOD
Publication/Patent Number: WO2020020000A1 Publication Date: 2020-01-30 Application Number: 2019095779 Filing Date: 2019-07-12 Inventor: Zhou xudong   Yu, Xiuying   Chang, Hanqing   Assignee: CHENGDU IDEALSEE TECHNOLOGY CO., LTD.   IPC: G03B21/00 Abstract: A laser scanning projection device, an apparatus, and a detection method, for addressing the technical problem in which a scanning imaging system provides poor safety during a laser scanning projection process. The laser scanning projection device comprises: a light source (10) comprising an imaging light source for emitting imaging light and a detection light source for emitting detection light, the detection light and the imaging light corresponding to difference bands or wavelengths; a scanner (20) for receiving the imaging light and the detection light that have been combined into a beam and output by the light source, and accordingly scanning and emitting collimated scanning light; a light processor (30) located in a light emission path of the scanner (20) and configured to split the scanning light emitted by the scanner (20) or to receive light reflected when the scanning light is projected to a projection carrier; a light detector (40) for detecting the detection light that has passed through the light processor (30), and generating and outputting an electrical signal corresponding to the detected detection light; and a controller (50) connected to the light detector (40) and configured to receive the electrical signal, determining, according to the value of the electrical signal, whether the scanner (20) is operating abnormally, and if the scanner (20) is determined to be operating abnormally, controlling light transmitted by the scanner (20).
2 WO2020007359A1
SCAN DRIVER AND OPTICAL FIBER SCAN DRIVER
Publication/Patent Number: WO2020007359A1 Publication Date: 2020-01-09 Application Number: 2019094860 Filing Date: 2019-07-05 Inventor: Yao, Changcheng   Song, Haitao   Zhou xudong   Assignee: CHENGDU IDEALSEE TECHNOLOGY CO., LTD.   IPC: G02B26/10 Abstract: A scan driver and an optical fiber scan driver, the scan driver comprising a first actuating part (1) and second actuating part (3) that are integrally formed and that are connected in sequence from back to front; the first actuating part (1) and the second actuating part (3) both comprise a piezoelectric material main body having a piezoelectric effect, internal electrode holes are disposed at the interior of the first actuating part (1) and the second actuating part (3), and external electrodes (12, 32) are disposed at the exterior of the first actuating part (1) and the second actuating part (3), the internal electrode holes of the first actuating part (1) and the second actuating part (3) being provided with internal electrodes (601, 602) which cooperate with the external electrodes (12, 32). The integrally formed structure avoids subsequent processes such as assembly, alignment and debugging of a scanner, thus reducing complexity and improving manufacturing efficiency, therefore difficulty during manufacturing may be greatly reduced and the reliability of a device may be improved; meanwhile, disassembly and disintegration may be prevented to increase overall reliability and durability.
3 WO2020007360A1
WAVEGUIDE-BASED DISPLAY MODULE, AND IMAGE GENERATION MODULE AND APPLICATION THEREOF
Publication/Patent Number: WO2020007360A1 Publication Date: 2020-01-09 Application Number: 2019094861 Filing Date: 2019-07-05 Inventor: Yao, Changcheng   Song, Haitao   Zhou xudong   Wang, Jiazhou   Assignee: CHENGDU IDEALSEE TECHNOLOGY CO., LTD.   IPC: G02B26/10 Abstract: Disclosed are a waveguide-based display module, and an image generation module and application corresponding thereto. Based on the principle of wavelength division multiplexing, an image generation unit modulates a mixed light beam that includes at least two groups of sub-images of different wavelengths. The mixed light beam modulated by the image generation unit is coupled into a waveguide module, which module has multiple layers of coupling-in units and multiple layers of coupling-out units, wherein each layer of coupling-in units is configured to couple in light of different wavelength ranges; and emitted images, which are formed by the coupling-out unit of the waveguide module coupling out a mixed light beam of an image to be displayed that is generated by the image generation unit, are spliced into the image to be displayed. The present invention solves the problem of taking both a large field of view and the miniaturization of a near-eye display module into consideration by means of a new idea.
4 WO2019184611A1
NEAR-EYE DISPLAY SYSTEM
Publication/Patent Number: WO2019184611A1 Publication Date: 2019-10-03 Application Number: 2019075057 Filing Date: 2019-02-14 Inventor: Song, Haitao   Zhou xudong   Assignee: CHENGDU IDEALSEE TECHNOLOGY CO., LTD.   IPC: G02B27/01 Abstract: A near-eye display system, comprising an image source (1) and an imaging lens group (2), wherein the image source (1) is used for emitting an image to be displayed; the imaging lens group (2) comprises at least two imaging components (3) sequentially disposed along an emergent light path of the image source (1); the imaging components (3) all reflect or diffract light beams emitted by the image source (1); apart from the imaging component (3) located on the rearmost side of the light path, the reflectivity or the diffraction efficiency of the other imaging components (3) is less than 100%; each of the imaging components (3) forms an image on a viewing area by means of reflection or diffraction; and viewing areas of the imaging components (3) are located on the same plane and do not overlap each other. Therefore, when the pupils of a wearer are in different positions, the wearer can observe an image emitted by the image source (1). The system has strong universality, and there is no need for individual customization according to an individual wearer, thus improving the universality of the display system and overcoming the defects of existing near-eye display systems.
5 WO2019157987A1
MONOCULAR LARGE FIELD-OF-VIEW NEAR-EYE DISPLAY DEVICE AND BINOCULAR LARGE FIELD-OF-VIEW NEAR-EYE DISPLAY DEVICE
Publication/Patent Number: WO2019157987A1 Publication Date: 2019-08-22 Application Number: 2019074428 Filing Date: 2019-02-01 Inventor: Song, Haitao   Zhou xudong   Assignee: CHENGDU IDEALSEE TECHNOLOGY CO., LTD.   IPC: G02B27/01 Abstract: A monocular large field-of-view near-eye display device, comprising at least two image source display systems (1), eyepiece optical systems (2) provided in a one-to-one correspondence to the image source display systems (1), and a near-eye display optical system (3). Image lights emitted by the image source display systems (1) are processed by the corresponding eyepiece optical systems (2) and then shone into the near-eye display optical system (3). The image lights are emitted by the near-eye display optical system (3) and then shone into either eye of an observer. Images formed by the image lights of the image source display systems (1) when emitted by the near-eye display optical system (3) are tiled with each other to form one complete image. Hence, each of the image source display systems (1) is respectively used for displaying a partial image of one entire image, and multiple partial images are ultimately tiled to constitute a complete overall image, thus increasing the monocular field-of-view of the device.
6 WO2019157986A1
MONOCULAR LARGE-VIEW-FIELD NEAR-EYE DISPLAY MODULE, DISPLAY METHOD AND HEAD-MOUNTED DISPLAY APPARATUS
Publication/Patent Number: WO2019157986A1 Publication Date: 2019-08-22 Application Number: 2019074427 Filing Date: 2019-02-01 Inventor: Song, Haitao   Zhou xudong   Assignee: CHENGDU IDEALSEE TECHNOLOGY CO., LTD.   IPC: G02B27/01 Abstract: Provided is a monocular large-view-field near-eye display module, comprising at least two image sources (11), an ocular optical device (12) and a flat optical waveguide (13), wherein images emitted by the image sources (11) are different parts which form a complete image with a corresponding large field angle; and the flat optical waveguide (13) is provided with an input coupler (131), a relay component (132) and an output coupler (133) which are arranged in a one-to-one correspondence with the ocular optical device (12); and images, which are diffracted or reflected outwards by each output coupler (133) and have corresponding sub-field angles, are spliced with each other to form a complete image with a corresponding large visual angle. The large field angle of the complete image is obtained by combining the sub-field angles corresponding to the images which are diffracted or reflected outwards by each output coupler (133), and the complete image corresponds to a complete image which has a corresponding large field angle and is formed by the sub-images emitted by the various image sources (11).
7 WO2019218895A1
FEATURE EXTRACTION METHOD AND SYSTEM FOR DEEP LEARNING
Publication/Patent Number: WO2019218895A1 Publication Date: 2019-11-21 Application Number: 2019085836 Filing Date: 2019-05-07 Inventor: Yan, Chao   Song, Haitao   Zhou xudong   Yao, Changcheng   Assignee: CHENGDU IDEALSEE TECHNOLOGY CO., LTD.   IPC: G06N3/067 Abstract: A feature extraction method for deep learning comprises: converting, by means of a display technology, a digital signal to undergo feature extraction into spatial image information to undergo feature extraction; converting, by means of an optical Fourier transform device, the spatial image information to undergo feature extraction into spectral image information to undergo feature extraction; and inputting the spectral image information to undergo feature extraction into a corresponding optical filter to obtain feature-extracted spectral image information. The method and the feature extraction system thereof convert time-domain convolution in the prior art into a frequency-domain dot product, thereby effectively reducing the amount of deep learning computation. An optical device having the same effect as a Fourier transform lens is used in the Fourier transform process, and therefore the transformation rate is the speed of light, thereby greatly reducing time consumed for the Fourier transform. Further, a spectrum dot product operation is realized through an optical solution, and the speed of the dot product operation is also the speed of light, thereby greatly reducing time consumed in obtaining the spectrum dot product.
8 WO2019184624A1
METHOD FOR CORRECTING IMAGE DISTORTION DURING OPTICAL FIBER SCANNING, AND OPTICAL FIBER SCANNER
Publication/Patent Number: WO2019184624A1 Publication Date: 2019-10-03 Application Number: 2019075483 Filing Date: 2019-02-19 Inventor: Yao, Changcheng   Song, Haitao   Zhou xudong   Assignee: CHENGDU IDEALSEE TECHNOLOGY CO., LTD.   IPC: G02B26/10 Abstract: Disclosed is a method for correcting image distortion during optical fiber scanning. The optical fiber scanning is raster scanning comprising: a fast-axis driver (2) driving an optical fiber (1) to vibrate in an X direction, and a slow-axis driver (3) driving the optical fiber to vibrate in a Y direction that is perpendicular to the X direction. A response in the Y direction is superposed on the fast-axis driver or the slow-axis driver, such that the response in the Y direction caused by the fast-axis driving is offset by the response superposed in the Y direction. By introducing an equal quantity reverse to that of the response in the Y direction caused by the fast-axis driving, the offset effect is generated to offset an out-of-plane response in a fast axis, so that the response in the fast axis is a horizontal straight line. At this point, an area in which the image is displayed is a regular rectangle, namely, the out-of-plane response is corrected. Therefore, accurate control of a scanning trace is realized, and the display resolution and performance of a scanned image are improved. Further disclosed is an optical fiber scanner.
9 WO2019120142A1
MONOCHROMATIC LASER LIGHT SOURCE, COLOR LASER LIGHT SOURCE, AND LASER PROJECTION DEVICE
Publication/Patent Number: WO2019120142A1 Publication Date: 2019-06-27 Application Number: 2018121236 Filing Date: 2018-12-14 Inventor: Yao, Changcheng   Song, Haitao   Zhou xudong   Assignee: CHENGDU IDEALSEE TECHNOLOGY CO., LTD.   IPC: G03B21/20 Abstract: A monochromatic laser light source, a color laser light source, and a laser projection device. The monochromatic laser light source comprises N lasers (101), N being an integer greater than or equal to 2, and each laser (101) outputting rays in the same color and with all gray scale values as constant values smaller than M; N ray beams output by the N lasers (101) are combined as one ray beam, and the monochromatic laser light source can output rays with any gray scale value from 0 to M by controlling whether each laser (101) outputs rays. Interference images respectively generated by the laser rays emitted from the N lasers (101) are different, and it would not be possible to form a stable single interference pattern, so that the laser speckle effect is greatly improved and the imaging quality is improved. In addition, the lasers (101) are prevented from high frequency modulation by means of high frequency change of a driving current, so that the gray scale values of the rays output by the monochromatic laser light source are easy to be controlled accurately.
10 WO2018001321A1
NEAR-EYE DISPLAY SYSTEM
Publication/Patent Number: WO2018001321A1 Publication Date: 2018-01-04 Application Number: 2017090835 Filing Date: 2017-06-29 Inventor: Zhou xudong   Huang, Qinhua   Yu, Xiuying   Assignee: CHENGDU IDEALSEE TECHNOLOGY CO., LTD.   IPC: G02B27/01 Abstract: Provided are a near-eye display system
11 WO2018001322A1
NEAR-EYE DISPLAY SYSTEM
Publication/Patent Number: WO2018001322A1 Publication Date: 2018-01-04 Application Number: 2017090837 Filing Date: 2017-06-29 Inventor: Zhou xudong   Huang, Qinhua   Yu, Xiuying   Assignee: CHENGDU IDEALSEE TECHNOLOGY CO., LTD.   IPC: G06F3/01 Abstract: Provided are a near-eye display system
12 WO2018001320A1
NEAR-EYE DISPLAY SYSTEM
Publication/Patent Number: WO2018001320A1 Publication Date: 2018-01-04 Application Number: 2017090834 Filing Date: 2017-06-29 Inventor: Zhou xudong   Huang, Qinhua   Yu, Xiuying   Assignee: CHENGDU IDEALSEE TECHNOLOGY CO., LTD.   IPC: G02B27/01 Abstract: Provided are a near-eye display system
13 WO2018001318A1
NEAR-EYE DISPLAY SYSTEM
Publication/Patent Number: WO2018001318A1 Publication Date: 2018-01-04 Application Number: 2017090832 Filing Date: 2017-06-29 Inventor: Zhou xudong   Huang, Qinhua   Yu, Xiuying   Assignee: CHENGDU IDEALSEE TECHNOLOGY CO., LTD.   IPC: G02B27/01 Abstract: Provided are a near-eye display system
14 WO2017181864A1
NEAR-EYE DISPLAY SYSTEM
Publication/Patent Number: WO2017181864A1 Publication Date: 2017-10-26 Application Number: 2017079940 Filing Date: 2017-04-10 Inventor: Zhou xudong   Assignee: CHENGDU IDEALSEE TECHNOLOGY CO., LTD.   IPC: G02B27/02 Abstract: A near-eye display system
15 WO2017152710A1
NEAR-TO-EYE DISPLAY SYSTEM AND HEAD-MOUNTED DISPLAY DEVICE
Publication/Patent Number: WO2017152710A1 Publication Date: 2017-09-14 Application Number: 2017070139 Filing Date: 2017-01-04 Inventor: Zhou xudong   Huang, Qinhua   Assignee: CHENGDU IDEALSEE TECHNOLOGY CO., LTD.   IPC: G02B27/01 Abstract: A near-to-eye display system and a head-mounted display device. The near-to-eye display system comprises a light source system (1)
16 EP3142209A1
INVERTER AND PHOTOVOLTAIC POWER GENERATION SYSTEM
Publication/Patent Number: EP3142209A1 Publication Date: 2017-03-15 Application Number: 15789022.9 Filing Date: 2015-03-27 Inventor: Cao, Wei   Yu, Yong   Liu, Gaowen   Zhou xudong   Assignee: Sungrow Power Supply Co., Ltd.   IPC: H02J3/38 Abstract: An inverter (100) and a photovoltaic power generation system. By arranging an energy storage interface (103), redundant direct-current electric energy of electric energy output by a solar panel (200) can be output through the energy storage interface (103) when photovoltaic power generation is limited, and stored direct-current electric energy can be received through the energy storage interface (103) when the photovoltaic power generation is at a low power. Therefore, the electric energy output by the solar panel (200) is not wasted, and the photovoltaic power generation system can generate power at a maximum power without lowering the profits of photovoltaic power generation.
17 US2017187323A1
INVERTER AND PHOTOVOLTAIC POWER GENERATION SYSTEM
Publication/Patent Number: US2017187323A1 Publication Date: 2017-06-29 Application Number: 15/308,719 Filing Date: 2015-03-27 Inventor: Cao, Wei   Yu, Yong   Liu, Gaowen   Zhou xudong   Assignee: Sungrow Power Supply Co., Ltd.   IPC: H02S10/20 Abstract: An inverter and a photovoltaic power generation system are provided. In the inverter according to the present disclosure, an energy storage interface is arranged, redundant direct current electric energy of electric energy outputted by a cell panel can be outputted via the energy storage interface in a case that photovoltaic power generation is limited, and the stored direct current electric energy can be received via the energy storage interface in a case that the photovoltaic power generation is at a low power. Therefore, the electric energy outputted by the cell panel is not wasted, and the photovoltaic power generation system can generate power at a maximum power without lowering the profits of photovoltaic power generation.
18 EP3142209A4
INVERTER AND PHOTOVOLTAIC POWER GENERATION SYSTEM
Publication/Patent Number: EP3142209A4 Publication Date: 2017-12-20 Application Number: 15789022 Filing Date: 2015-03-27 Inventor: Cao, Wei   Zhou xudong   Yu, Yong   Liu, Gaowen   Assignee: Sungrow Power Supply Co., Ltd.   IPC: H02J3/38 Abstract: An inverter (100) and a photovoltaic power generation system. By arranging an energy storage interface (103)
19 WO2017181865A1
SPATIAL POSITIONING SYSTEM
Publication/Patent Number: WO2017181865A1 Publication Date: 2017-10-26 Application Number: 2017079941 Filing Date: 2017-04-10 Inventor: Zhang, Chao   Li, Xiaohu   Zhou xudong   Assignee: CHENGDU IDEALSEE TECHNOLOGY CO., LTD.   IPC: G01S5/16 Abstract: A spatial positioning system
20 WO2015169131A1
INVERTER AND PHOTOVOLTAIC POWER GENERATION SYSTEM
Publication/Patent Number: WO2015169131A1 Publication Date: 2015-11-12 Application Number: 2015075196 Filing Date: 2015-03-27 Inventor: Cao, Wei   Yu, Yong   Zhou xudong   Liu, Gaowen   Assignee: SUNGROW POWER SUPPLY CO., LTD.   IPC: H02J3/38 Abstract: An inverter (100) and a photovoltaic power generation system. By arranging an energy storage interface (103)