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公开(公告)号：US12117598B2
公开(公告)日：2024-10-15
申请号：US17654502
申请日：2022-03-11
发明人： Chen Feng , Tao Xian , Eric A. Youngblood
摘要： An example variable focusing lens apparatus, as well as example methods for assembling and operating the example variable focusing lens apparatus, is provided. The example variable focusing lens apparatus includes a rear pair of coil elements powered by a rear coil current, a front pair of coil elements positioned in front of the rear pair of coil elements and powered by a front coil current, and a barrel lens assembly comprising a top magnetic element secured on a top portion of the barrel lens assembly and a bottom magnetic element secured on a bottom portion of the barrel lens assembly. In some examples, the barrel lens assembly is moveable to a plurality of barrel lens assembly positions corresponding to a plurality of current differential ratios associated with the rear coil current and the front coil current.
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公开(公告)号：US20240288659A1
公开(公告)日：2024-08-29
申请号：US18115421
申请日：2023-02-28
发明人： Chen Feng , Eric Youngblood , Tao Xian
摘要： An example bi-directional closed loop multi-focus-position lens apparatus comprises a barrel lens assembly moveable along a longitudinal axis and comprising top and bottom magnetic elements, top and bottom coil elements, a magnetic field sensor, a temperature sensor, a processor, and a non-transitory memory storing predetermined calibration data. The lens apparatus applies current to the coil elements to move the lens assembly toward a desired focus position, captures a magnetic field and temperature within the lens apparatus, compares the captured magnetic field and the captured temperature to the calibration data to determine a current position of the lens assembly, determines if the current position is the desired focus position, and, if the current position is not the desired focus position, adjusts the coil current to move the lens assembly from the current position toward the desired focus position.
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公开(公告)号：US20230419064A1
公开(公告)日：2023-12-28
申请号：US17846470
申请日：2022-06-22
CPC分类号： G06K7/1473 , G06K19/06037
摘要： Apparatuses, systems, and methods for providing a one sensor near far solution to minimize field of view mismatch and aiming offsets are provided. For example, an indicia reader utilizing dual optics may include an engine comprising a near field imaging optic and a far field imaging optic that split an imaging sensor array and a aimer; wherein the near field imaging optic, the far field imaging optic, and the aimer are configured in a triangular arrangement to minimize the field of mismatch and aiming offsets. In some embodiments, the far field imaging optic may be configured to utilize a two or more mirrors to provide a periscope configuration.
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公开(公告)号：US11665432B2
公开(公告)日：2023-05-30
申请号：US17818857
申请日：2022-08-10
发明人： Gennady Germaine , Paul Poloniewicz , Michael Miraglia , Benjamin Hejl , Gregory Rueblinger , Erik Van Horn , Tao Xian , David Wilz, Sr. , Chen Feng , Shankar Ban
摘要： Embodiments of the disclosure relate generally to illumination synchronization in a multi-imager environment. Embodiments include systems, methods, computer program products, and apparatuses configured for operating a near-field illumination source associated with a near-field image sensor, based on a first illumination pulse train. An exposure period of a far-field image sensor is determined and one or more characteristics of the first illumination pulse train are modified to accommodate the exposure period of the far-field image sensor.
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公开(公告)号：US11647286B2
公开(公告)日：2023-05-09
申请号：US17804900
申请日：2022-06-01
发明人： Paul Poloniewicz , Tao Xian , Chen Feng
CPC分类号： H04N5/23212 , G06T7/50 , G06T7/70 , G06T9/00 , H04N5/2258 , H04N5/23218 , H04N5/23245
摘要： Embodiments of the disclosure relate generally to automatic focus selection in a multi-imager environment. Embodiments include methods, systems, and apparatuses configured for capturing by a first image sensor, a first image of a visual object with a background associated with a subject. A characteristic difference between the visual object in the first image and the background in the first image is determined and a distance determination mode is selected based on the determined characteristic difference. Accordingly, a distance to the subject is calculated based on the selected distance determination mode and a second image sensor is controlled to capture a second image of the subject, based on the calculated distance to the subject.
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公开(公告)号：US20230077547A1
公开(公告)日：2023-03-16
申请号：US17936764
申请日：2022-09-29
发明人： Ronald W. Myers , Michael E. Moran , Chen Feng , Suresh Venkatarayalu , Moin Shafai , Adam Dewey McBrady , John Jerred , Charles Licata
IPC分类号： G01N21/77
摘要： Methods, apparatuses, and systems associated with a sample testing device are provided.
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公开(公告)号：US11531825B2
公开(公告)日：2022-12-20
申请号：US17002546
申请日：2020-08-25
发明人： Chen Feng , Edward C. Bremer , Tao Xian , Sean Philip Kearney , Mehul Patel
摘要： An indicia-reading module is capable of integration into the smallest face of thin-profile smart device. The module employs chip-on-board packaging and a customized sensor enclosure to eliminate the stack-up height found in conventional packaging. The module also employs a customized frame to reduce volume by integrating circuit subassembly circuit boards into a unique architecture and by serving as the lenses for the illuminator and the aimer, thereby eliminating the need for any extra lenses or holders.
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公开(公告)号：US11428894B2
公开(公告)日：2022-08-30
申请号：US16781444
申请日：2020-02-04
发明人： Chen Feng , Tao Xian , Paul Poloniewicz , Scott Bracken
IPC分类号： G02B7/04
摘要： Various embodiments described herein provide a discrete focusing lens assembly. Some embodiments are designed to enable repositioning of one or more components, such as a lens barrel assembly, to adjust the focus of the discrete focusing lens assembly. Some example discrete focusing lens assemblies include a module base housing a lens barrel assembly having a pair of positioning magnets, a pair of positioning coil assemblies associated with the positioning magnets, and at least one module alignment pin positioning and/or aligning some or all of the components. The positioning coil assemblies together with the positioning magnets are configured to exert various magnetic fields to reposition the lens barrel assembly. Further embodiments are provided for imaging apparatus including at least one discrete focusing lens assembly described herein. Further, embodiments are provided for processes for assembling a discrete focusing lens assembly described herein.
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公开(公告)号：US20220239821A1
公开(公告)日：2022-07-28
申请号：US17157979
申请日：2021-01-25
发明人： Gennady Germaine , Paul Poloniewicz , Michael Miraglia , Benjamin Hejl , Gregory Rueblinger , Erik Van Horn , Tao Xian , David Wilz, SR. , Chen Feng , Shankar Ban
摘要： Embodiments of the disclosure relate generally to illumination synchronization in a multi-imager environment. Embodiments include systems, methods, computer program products, and apparatuses configured for operating a near-field illumination source associated with a near-field image sensor, based on a first illumination pulse train. An exposure period of a far-field image sensor is determined and one or more characteristics of the first illumination pulse train are modified to accommodate the exposure period of the far-field image sensor.
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公开(公告)号：US11347951B2
公开(公告)日：2022-05-31
申请号：US16614182
申请日：2017-05-17
发明人： Chen Feng , Jie Ren , Yunxin Ouyang
IPC分类号： G06K7/10
摘要： A multi-functional optical illuminator comprises: a light pipe (302) with an open frame structure for visual aiming of the illuminator to facilitate an alignment of a barcode; and a circuit board (304), attached to a back opening of the light pipe (302), comprising six dark field LEDs (308) for generating six dark field illuminations and two bright field LEDs (306) for generating bright field illuminations; wherein, the two bright field LEDs (306) produce two alternating point sources for providing bright field illuminations in different directions to minimize a specular reflection hot spot without using any diffuser during the bright field illuminations; wherein, chamfered inner edges of the light pipe (302) emit the dark field illuminations in different orientations from the light pipe (302). The illuminator is designed to provide dual-field, multi-color, multi-directional illumination. The non-closed form option not only can further reduce the weight but also can allow arrange opening area clearance for: (1) visual aiming and alignment in application, especially for hand held application; (2) reducing illumination crosstalk to unwanted directions; and for (3) mechanical integration. The improvements allow the illuminator to read direct product marking (DPM) type of barcodes.
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