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1. 发明授权

US11630026B2 Method and test system for assessing the quality of a multi-channel micro- and/or subwavelength-optical projection unit 有权
公开(公告)号：US11630026B2
公开(公告)日：2023-04-18
申请号：US17010553
申请日：2020-09-02
申请人： SUSS MICROOPTICS SA
发明人： Isabel Agireen , Katrin Schindler , Wilfried Noell , Sophiane Tournois , Susanne Westenhoefer
IPC分类号： G01M11/02 , G01B11/14 , G01B11/24 , G01N21/896 , G01N21/958
摘要： A method for assessing the quality of a multi-channel micro- and/or subwavelength-optical projection unit is disclosed. The method comprises the following steps: At least a predefined portion of the optical projection unit is illuminated so that an image is generated by at least two channels of the predefined portion of the multi-channel optical projection unit. At least one characteristic quantity is determined based on the analysis of the image, wherein a value of the characteristic quantity is associated with a characteristic feature of the projection unit, a defect of the projection unit and/or a defect class of the projection unit. The quality of the projection unit is assessed based on the at least one characteristic quantity. Moreover, a test system for assessing the quality of a multi-channel micro- and/or subwavelength-optical projection unit and a computer program are disclosed.

2. 发明授权

US11619563B2 Optical path test system and method for return light resistance of laser chip 有权
公开(公告)号：US11619563B2
公开(公告)日：2023-04-04
申请号：US17571545
申请日：2022-01-10
申请人： Shenzhen Xing Han Laser Technology Co.Ltd.
发明人： Shao Feng Zhou , Peng Liu , Shu ping Wang , Chun bao Ouyang
IPC分类号： G01M11/02 , H01S5/065 , H01S5/00
摘要： An optical path test system includes a return light test unit for emitting laser light to an optical path monitoring unit to simulate return light received by the optical path monitoring unit in a normal operation; a light path monitoring unit arranged on a light path of the return light testing unit for receiving the return light and normally emitting laser light; and a power detector for receiving the laser light emitted by the light path monitoring unit so as to monitor stability of output power of the chip when the light path monitoring unit receives the return light emitted by the return light testing unit. The technical solution in the present invention emits laser light to a tested laser chip to simulate return light received by the tested laser chip in a normal operation, and a return light resistance threshold of the laser chip can be accurately evaluated.

3. 发明申请

US20230091748A1 DETECTION DEVICE AND DETECTION METHOD 有权
公开(公告)号：US20230091748A1
公开(公告)日：2023-03-23
申请号：US16962284
申请日：2020-05-09
申请人： Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
发明人： Bo HE
IPC分类号： G01R31/26 , G01M11/02
摘要： A detection device and a detection method are provided. The detection device includes a plurality of detection portions, a signal generator, and an optical component. The detection portions include a first detection electrode and a second detection electrode disposed at a same side. Different electrical signals provided by the signal generator are provided to a first electrode and a second detection electrode of a corresponding micro light-emitting device by the first detection electrode and the second detection electrode, respectively, to make a plurality of micro light-emitting devices emit light, and corresponding optical parameters are obtained by the optical component according to light-emitting conditions.

4. 发明申请

US20230091165A1 OPTICAL APPARATUS, EVALUATION APPARATUS, EVALUATION METHOD, AND MANUFACTURING METHOD OF OPTICAL SYSTEM 有权
公开(公告)号：US20230091165A1
公开(公告)日：2023-03-23
申请号：US17942254
申请日：2022-09-12
申请人： CANON KABUSHIKI KAISHA
发明人： Seima Kato
IPC分类号： G01M11/02
摘要： An optical apparatus includes a first light source, a second light source, a chart, an optical system, and a light receiving system. The chart is configured to guide light emitted from the first light source to a target optical system. The optical system is configured to form a point image by using light emitted from the second light source. The light receiving system is configured to receive first light emitted from the chart via the target optical system and second light emitted from the point image via the target optical system. The first light and the second light enter different positions of the target optical system.

5. 发明授权

US11566965B2 Contact lens retrieving method 有权
公开(公告)号：US11566965B2
公开(公告)日：2023-01-31
申请号：US17220296
申请日：2021-04-01
申请人： HOPE VISION CO., LTD.
发明人： Zheng Jun Su , Hsiu Ming Yang , Huan Chiu Tsen
IPC分类号： G01M11/02 , B65G49/06
摘要： A contact lens retrieving method is applied to a contact lens, which is placed in a detection container containing a buffer solution and has been inspected in an optical detection. The method comprises steps:
moving a vacuum sucker into the buffer solution at a first speed to make the contact lens depart from the lateral side of the detection container; moving the vacuum sucker away from a bottom of the detection container at a second speed with the vacuum sucker not leaving the buffer solution to make the contact lens flow toward a center of the detection container;
moving the vacuum sucker to approach the contact lens at a third speed to make the vacuum sucker and the contact lens positioned to each other; and using the vacuum sucker to take up the contact lens and carry the contact lens out of the detection container.

6. 发明申请

US20230027389A1 DISTANCE DETERMINATION METHOD, APPARATUS AND SYSTEM 有权
公开(公告)号：US20230027389A1
公开(公告)日：2023-01-26
申请号：US17758370
申请日：2020-09-30
申请人： MEGVII (BEIJING) TECHNOLOGY CO., LTD.
发明人： Gang HU
IPC分类号： G06V10/74 , G06V10/24 , G06V10/44 , G06V10/98 , G06T7/593 , G01M11/02
摘要： The present disclosure provides a distance determination method, apparatus and system, relating to the technical field of image processing. The method includes the following steps: acquiring a master visual image photographed by a master camera and an original auxiliary visual image photographed by an auxiliary camera; acquiring an initial matching point pair between the master visual image and the original auxiliary visual image through feature extraction and feature matching; correcting the original auxiliary visual image sequentially, based on the initial matching point pair and different constraints, so as to obtain a target auxiliary visual image, wherein the different constraints includes: a constraint of a minimum rotation angle and a constraint of a minimum parallax; and determining a focusing distance according to the master visual image and the target auxiliary visual image. The focusing distance can be determined more accurately.

7. 发明授权

US11555758B2 Method and system of measuring toric lens axis angle 有权
公开(公告)号：US11555758B2
公开(公告)日：2023-01-17
申请号：US14630700
申请日：2015-02-25
申请人： Bausch & Lomb Incorporated
发明人： Trevor F. O'Neill
IPC分类号： B29D11/00 , G01M11/02
摘要： A method of measuring an axis angle of a toric contact lens including a posterior toric central zone having a cylindrical axis, and an anterior lens surface forming a ballast that has an axis of orientation offset from the cylindrical axis at a selected rotational angle is disclosed. The method involves (a) providing anterior and posterior mold sections including respective anterior and posterior mold cavity defining surfaces, wherein the posterior mold cavity defining surface includes a toric central zone and the anterior mold cavity defining surface is shaped to provide the ballast, the mold sections being alignable at multiple rotational positions; (b) providing a detectable feature on each of the anterior and posterior mold sections at a predetermined angular location with respect to the tonic and ballast axes thereof, respectively; (c) rotating the detectable feature of the posterior mold section relative to the detectable feature of the anterior mold section, wherein the detectable feature of the anterior mold section is a zero reference; and (d) measuring the axis angle between the detectable feature of the posterior mold section relative to the detectable feature of the anterior mold section after rotational displacement of the mold sections during toric contact lens formation.

8. 发明申请

US20220412840A1 SYSTEMS AND METHODS FOR TESTING GRATINGS 有权
公开(公告)号：US20220412840A1
公开(公告)日：2022-12-29
申请号：US17304952
申请日：2021-06-29
申请人： Google LLC
发明人： Timothy Bodiya
IPC分类号： G01M11/02
摘要： Optical gratings, such as those used in waveguide displays, may have large aspect ratios. For example, a grating characteristic (e.g., period, feature size, etc.) can be much smaller than the grating area. Variations in the grating characteristic over the grating area may appear like a secondary grating having a long grating period superimposed on a primary grating for which the optical grating was designed. Because variations responsible for the secondary grating occur over a long distance relative to the primary grating period, it may be difficult to locate and characterize these variations with testing methods designed for shorter distances. The present disclosure presents systems and methods to detect and characterize the secondary gratings quickly and efficiently.

9. 发明授权

US11499888B2 Lens inspection module 有权
公开(公告)号：US11499888B2
公开(公告)日：2022-11-15
申请号：US17021305
申请日：2020-09-15
申请人： ALCON INC.
发明人： Bernhard Pfaff , Roger Biel , Susanne Fechner , Daniel Kessler
IPC分类号： G01M11/02 , B08B5/04
摘要： A lens inspection module comprises: a lens insertion station, at least one lens inspection station, and a lens removal station as well as a closed-loop transportation rail, a cuvette transportation shuttle with a plurality of inspection cuvettes, and a self-driving cleaning shuttle for cleaning the rail. Cleaning shuttle comprises a driving unit a cleaning head, a suction unit, and a tube connecting cleaning head and suction unit. Cleaning head is spaced apart from suction unit and driving unit in the transportation direction and is pivotally arranged about a pivot axis. Cleaning head may comprise a distance sensor for detecting the distance between cleaning shuttle and transportation shuttle. Driving unit is configured to change the speed of the self-driving cleaning shuttle when the distance between the cleaning shuttle and the transportation shuttle is shorter than a predetermined threshold distance.

10. 发明申请

US20220357236A1 DEVICE AND METHOD FOR MEASURING INTERFACES OF AN OPTICAL ELEMENT 有权
公开(公告)号：US20220357236A1
公开(公告)日：2022-11-10
申请号：US17596169
申请日：2019-06-07
申请人： FOGALE NANOTECH
发明人： Alain COURTEVILLE , Charankumar GODAVARTHI
IPC分类号： G01M11/02 , G01B9/0209 , G01B9/02 , G01B11/24
摘要： A measurement device, for measuring the shape of an interface to be measured of an optical element having a plurality of interfaces, the device including: measurement apparatus with at least one interferometric sensor illuminated by a low-coherence source, for directing a measurement beam towards the optical element to pass through the plurality of interfaces, and to detect an interference signal resulting from interferences between the measured measurement beam reflected by the interface and a reference beam; positioning apparatus configured for relative positioning of a coherence area of the interferometric sensor at the level of the interface to be measured; digital processor for producing, based on the interference signal, an item of shape information of the interface to be measured according to a field of view. A measurement method, for measuring the shape of an interface of an optical element having a plurality of interfaces is also provided.

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