公开(公告)号：US20230003962A1

公开(公告)日：2023-01-05

申请号：US17363708

申请日：2021-06-30

Applicant: ZEBRA TECHNOLOGIES CORPORATION

Inventor： William P. Hurley, IV ,  David T. Shi ,  Vladimir Gurevich ,  Igor Vinogradov ,  Carl D. Wittenberg ,  Bryan E. Joles

IPC: G02B7/00 ,  G02B7/09

Abstract: An optical assembly for an autofocus imaging system for capturing at least one image of an object appearing in an imaging field of view (FOV) is provided. The optical assembly includes a front aperture along an optical axis and a front lens group along the optical axis that receives light from the object of interest. The position of the front lens group is adjustable to change a focal distance of the optical assembly. The optical assembly further includes an actuator physically coupled to the front lens group that adjusts the position of the front lens. A rear lens group is disposed along the optical axis to receive the light from the front lens group, and an imaging sensor is disposed at a back focal distance of the rear lens group, to detect the light.

公开(公告)号：US11531826B2

公开(公告)日：2022-12-20

申请号：US16672008

申请日：2019-11-01

Applicant: ZEBRA TECHNOLOGIES CORPORATION

Inventor： Dayou Wang ,  Edward Chen ,  Igor Vinogradov

IPC: G06K7/10 ,  G06K7/14

Abstract: Systems and methods for user choice of barcode scanning ranges are provided. This is achieved through the identification of a predetermined pixel-per-module threshold range. The pixel-per-module of a barcode being read by a reader is compared to the predetermined pixel-per-module threshold range, and a successful decode of the barcode is carried out only if the pixel-per-module of the barcode falls within the predetermined range. Thus, a user may select a desired reading distance range such that barcodes within a working distance range may not generate successful decodes if such barcodes are outside of the desired reading distance range.

公开(公告)号：US20220381955A1

公开(公告)日：2022-12-01

申请号：US17333308

申请日：2021-05-28

Applicant: ZEBRA TECHNOLOGIES CORPORATION

Inventor： Carl D. Wittenberg ,  Igor Vinogradov ,  William P. Hurley, IV ,  David T. Shi

IPC: G02B3/04 ,  G03B17/12 ,  G02B1/04

Abstract: An optical assembly for an autofocus imaging system for capturing at least one image of an object appearing in an imaging field of view (FOV) is provided. The optical assembly includes a front aperture along an optical axis and a front lens group along the optical axis that receives light from the object of interest. The position of the front lens group is adjustable to change a focal distance of the optical assembly. The optical assembly further includes an actuator physically coupled to the front lens group that adjusts the position of the front lens. A rear lens group is disposed along the optical axis to receive the light from the front lens group, and an imaging sensor is disposed at a back focal distance of the rear lens group, to detect the light.

公开(公告)号：US11221461B2

公开(公告)日：2022-01-11

申请号：US16824368

申请日：2020-03-19

Applicant: ZEBRA TECHNOLOGIES CORPORATION

Inventor： Igor Vinogradov ,  David D. Landron ,  Christopher W. Brock

IPC: G02B15/14 ,  G02B7/10 ,  G02B7/02 ,  G03B13/36 ,  G02B3/14

Abstract: Methods and systems for tracking focus of an adjustable variable focus lens-based imaging system are disclosed. An example method includes identifying an initial focus position of an adjustable variable focus lens assembly and determining focusing parameters corresponding to that focus position. The focusing parameters are compared to a lens behavior model and a new, compensated focus position of the lens assembly is determined correcting for changes in lens assembly performance. A small window focusing sweep range, between forward and aft positions, may also be adjusted based on the lens behavior model to better identify the compensated focus position.

公开(公告)号：US20210373274A1

公开(公告)日：2021-12-02

申请号：US16887256

申请日：2020-05-29

Applicant: ZEBRA TECHNOLOGIES CORPORATION

Inventor： Alexander J. Naney ,  Igor Vinogradov

IPC: G02B7/02 ,  G02B7/09

Abstract: Optical arrangements for small size wide angle auto focus imaging lens for high resolution sensors are disclosed herein. An example optical assembly includes a first lens holder, a second lens holder, a first lens group, a biasing element, and a variable focus optical element. The first lens holder includes a collar having an internal flange forming a spring seat and the first lens group is disposed within the first lens holder. The second lens holder includes a collar defining a chamber and is coupled to the collar of the first lens holder. The variable focus optical element is disposed within the chamber of the second lens holder and the biasing element is disposed within the chamber of the second lens holder between the spring seat and the variable focus optical element and configured to apply a threshold force to the variable focus optical element.

公开(公告)号：US11120236B1

公开(公告)日：2021-09-14

申请号：US16803746

申请日：2020-02-27

Applicant: ZEBRA TECHNOLOGIES CORPORATION

Inventor： Igor Vinogradov ,  Eric Trongone ,  Qing Tu

IPC: G06K15/12 ,  G06K7/10

Abstract: An apparatus for capturing an image of at least one object appearing in an imaging field of view (FOV). A housing has an imaging sensor operably coupled with the circuit board, the imaging sensor configured to capture an image frame appearing in the imaging FOV and defining an imaging axis. An illumination assembly has a plurality of light sources operably coupled with the circuit board, a diffuser positioned adjacent to the plurality of light sources, the diffuser configured to generate a diffused light pattern, and a light pipe positioned adjacent to the plurality of light sources to generate a direct illumination pattern and an off-axis illumination pattern, wherein the direct illumination pattern is oriented generally parallel to the imaging axis and the off-axis illumination pattern is configured to intersect the imaging axis.

公开(公告)号：US20210271836A1

公开(公告)日：2021-09-02

申请号：US16803746

申请日：2020-02-27

Applicant: ZEBRA TECHNOLOGIES CORPORATION

Inventor： Igor Vinogradov ,  Eric Trongone ,  Qing Tu

IPC: G06K7/10

Abstract: An apparatus for capturing an image of at least one object appearing in an imaging field of view (FOV). A housing has an imaging sensor operably coupled with the circuit board, the imaging sensor configured to capture an image frame appearing in the imaging FOV and defining an imaging axis. An illumination assembly has a plurality of light sources operably coupled with the circuit board, a diffuser positioned adjacent to the plurality of light sources, the diffuser configured to generate a diffused light pattern, and a light pipe positioned adjacent to the plurality of light sources to generate a direct illumination pattern and an off-axis illumination pattern, wherein the direct illumination pattern is oriented generally parallel to the imaging axis and the off-axis illumination pattern is configured to intersect the imaging axis.

公开(公告)号：US20210165982A1

公开(公告)日：2021-06-03

申请号：US17047259

申请日：2019-04-11

Applicant: Zebra Technologies Corporation

Inventor： Mark Drzymala ,  Edward Barkan ,  Igor Vinogradov

IPC: G06K7/10

Abstract: An apparatus and assembly for redirecting the central illumination axis of an illumination assembly towards the central field of view (FOV) axis of an imaging assembly using an optical element that provides an optical magnification of less than 1.5×, where the central illumination axis at the point of the illumination assembly is non-parallel to the central FOV axis.

公开(公告)号：US20210150164A1

公开(公告)日：2021-05-20

申请号：US16685992

申请日：2019-11-15

Applicant: ZEBRA TECHNOLOGIES CORPORATION

Inventor： Gary G. Schneider ,  Igor Vinogradov ,  William Sackett

IPC: G06K7/14 ,  G06T7/90 ,  H04N9/04 ,  H04N5/232

Abstract: Systems and methods of processing image data using color image sensors are disclosed herein. An example object scanner includes a color image sensor array configured to produce image data representative of an imaging field of view. The example object scanner also includes an image processor. The image process is configured to separate the image data produced by the color image sensor array into two or more channels of image data and, for each of the channels of image data, analyze the respective image data to determine a contrast of the respective image data. The image processor is also configured to select a particular channel of the two or more channels that has the highest contrast; and output the image data corresponding to the particular channel.

公开(公告)号：US20190318140A1

公开(公告)日：2019-10-17

申请号：US15952740

申请日：2018-04-13

Applicant: Zebra Technologies Corporation

Inventor： Mark Drzymala ,  Edward Barkan ,  Igor Vinogradov

IPC: G06K7/10

Abstract: An apparatus and assembly for redirecting the central illumination axis of an illumination assembly towards the central field of view (FOV) axis of an imaging assembly using an optical element that provides an optical magnification of less than 1.5×, where the central illumination axis at the point of the illumination assembly is non-parallel to the central FOV axis.