公开(公告)号：US12235418B2

公开(公告)日：2025-02-25

申请号：US17873058

申请日：2022-07-25

Applicant: ZEBRA TECHNOLOGIES CORPORATION

Inventor： Chinh Tan ,  Vladimir Gurevich

IPC: G02B13/00 ,  G02B9/34 ,  G02B13/02 ,  G02B13/18 ,  G06K7/10 ,  G06K7/14

Abstract: An imaging engine including a telephoto lens for compact long range barcode readers is disclosed herein. An example imaging engine includes an imaging sensor and a telephoto lens assembly. The example telephoto lens assembly includes a first lens, disposed along an optical axis; a second lens, disposed along the optical axis to correct for pupil aberrations of the image projected after a fourth lens onto the imaging sensor; a third lens, disposed along the optical axis to correct for chromatic aberration of the image projected after the fourth lens onto the imaging sensor; and the fourth lens, disposed along the optical axis to correct for optical field curvature of the image projected after the fourth lens onto the imaging sensor.

公开(公告)号：US20240291238A1

公开(公告)日：2024-08-29

申请号：US18115708

申请日：2023-02-28

Applicant: ZEBRA TECHNOLOGIES CORPORATION

Inventor： Chinh Tan ,  David Tsi Shi ,  Matthew D. Blasczak

IPC: H01S5/183 ,  H01S5/00 ,  H01S5/026

CPC classification number: H01S5/18327 ,  H01S5/0014 ,  H01S5/0262

Abstract: An improved imaging device for use with indicia decoding operations is provided with a vertical cavity surface emitting laser (VCSEL) including: a semiconductor substrate, an upper distributed Bragg reflector (DBR), a lower DBR coupled to the substrate, and at least one photodiode integrated into the substrate which is positioned to receive leakage light from the lower DBR, wherein the VCSEL is configured to emit a beam of light away from the substrate.

公开(公告)号：US20240113496A1

公开(公告)日：2024-04-04

申请号：US17956383

申请日：2022-09-29

Applicant: ZEBRA TECHNOLOGIES CORPORATION

Inventor： Matthew D. Blasczak ,  Chinh Tan

IPC: H01S5/02253 ,  H01S5/0232 ,  H01S5/183 ,  H05K1/18

CPC classification number: H01S5/02253 ,  H01S5/0232 ,  H01S5/18361 ,  H05K1/181 ,  H05K2201/10121

Abstract: An optical pattern generating system for providing an aiming pattern in a field of view (FOV). The optical pattern generating system includes a light source configured to provide light along an optical axis, the light source including a vertical-cavity surface-emitting laser. The system further includes an optical substrate disposed along the optical axis configured to receive the light from the light source, the optical substrate having a first surface having a first flat optical element thereon, the first flat optical element being an element that collimates the light, a second surface having a second flat optical element thereon, the second flat optical element configured to diffract the light to form an optical pattern, and a thickness defined by the distance between the first surface and second surface.

公开(公告)号：US20220269874A1

公开(公告)日：2022-08-25

申请号：US17743052

申请日：2022-05-12

Applicant: ZEBRA TECHNOLOGIES CORPORATION

Inventor： Chinh Tan

IPC: G06K7/10 ,  H04N1/028 ,  H04N1/00

Abstract: An imaging assembly for capturing at least one object appearing in a field of view (FOV) is provided that includes an image capturing system, a controller operatively coupled to the image capturing system to control operation thereof, and a processor operatively coupled to the controller. The image capturing system is adapted to capture an image having at least one sub-frame and is further adapted to obtain distance information of the object. The processor analyzes the image to determine a brightness value of at least a portion of the image and analyzes the distance information of the object to determine a distance value from the imaging assembly to the object. The processor further determines an illumination characteristic based on the brightness value and the distance value.

公开(公告)号：US20210042484A1

公开(公告)日：2021-02-11

申请号：US17080750

申请日：2020-10-26

Applicant: ZEBRA TECHNOLOGIES CORPORATION

Inventor： Chinh Tan ,  Caihua Chen ,  Carl D. Wittenberg ,  Jason Y. Potter

IPC: G06K7/10

Abstract: At least some embodiments of the present invention are directed toward optical arrangements for use in providing illumination light emitted by a barcode reader. In some embodiments, the arrangement includes an illumination source, a lens positioned within the path of the illumination light emitted by the illumination source where the lens is operable to collimate the light and redirect its central axis, and a window positioned within the path of the redirected and collimated light where the window is operable to alter the illumination light such that the resulting illumination light beam has a height-to-width ratio of less than 8 to 25.

公开(公告)号：US20220066126A1

公开(公告)日：2022-03-03

申请号：US17006628

申请日：2020-08-28

Applicant: ZEBRA TECHNOLOGIES CORPORATION

Inventor： Igor Vinogradov ,  David T. Shi ,  Chinh Tan ,  Vladimir Gurevich

IPC: G02B7/09 ,  G02B13/18 ,  G02B9/12

Abstract: Autofocus (AF) optical arrangements and assemblies including a voice coil motor (VCM) are disclosed. An example optical assembly for a focusing lens includes: a front lens group disposed along an optical axis configured to receive light from the object of interest and configured to correct for aberrations of a first image projected by the front lens group; an aperture disposed along an optical axis configured to receive light from the front lens group therethrough along the optical axis; a moveable focus lens to receive light through the aperture; a VCM configured to move the focus lens to focus the optical assembly; and a back lens group disposed along the optical axis configured to receive light from the focus lens and further configured to correct for field curvature.

公开(公告)号：US11256889B2

公开(公告)日：2022-02-22

申请号：US17080750

申请日：2020-10-26

Applicant: ZEBRA TECHNOLOGIES CORPORATION

Inventor： Chinh Tan ,  Caihua Chen ,  Carl D. Wittenberg ,  Jason Y. Potter

IPC: G06K7/10

Abstract: At least some embodiments of the present invention are directed toward optical arrangements for use in providing illumination light emitted by a barcode reader. In some embodiments, the arrangement includes an illumination source, a lens positioned within the path of the illumination light emitted by the illumination source where the lens is operable to collimate the light and redirect its central axis, and a window positioned within the path of the redirected and collimated light where the window is operable to alter the illumination light such that the resulting illumination light beam has a height-to-width ratio of less than 8 to 25.

公开(公告)号：US20210404863A1

公开(公告)日：2021-12-30

申请号：US17473767

申请日：2021-09-13

Applicant: ZEBRA TECHNOLOGIES CORPORATION

Inventor： Edward Barkan ,  Chinh Tan ,  Darran Michael Handshaw ,  Mark Drzymala

IPC: G01G23/37 ,  G06K7/14 ,  G01G19/414 ,  G06K7/10

Abstract: A modular off-platter detection assembly for use with a barcode reader includes a housing, a first light source, a first light sensor, and a controller operatively coupled to the first light source and the first light sensor. The housing is configured to be removably mounted to the barcode reader, a frame supporting the barcode reader, or the workstation. The first light source is positioned within the housing and emits a first light along a first lateral edge of a weigh platter. The first light sensor is positioned within the housing, has a first field-of-view along the first lateral edge, and is configured to detect at least a portion of the first light reflected towards the housing. The controller is configured to provide a first alert in response to receipt of a first value from the first light sensor indicating there is an object extending across the first lateral edge.

公开(公告)号：US11003882B2

公开(公告)日：2021-05-11

申请号：US16600304

申请日：2019-10-11

Applicant: ZEBRA TECHNOLOGIES CORPORATION

Inventor： William P. Hurley, IV ,  Igor Vinogradov ,  Darran Michael Handshaw ,  Chinh Tan

IPC: G06K7/14 ,  G06K7/10

Abstract: A method and apparatus for directing an aim light through a window of an image reader. The window has a cylindrically curved section. The aim light impinges on a portion of the cylindrically curved section of the window prior to partially passing through the window. A first amount of the aim light is passed through the window, and a second amount of the aim light is reflected into the cavity resulting in reflected aim light. The reflected aim light is directed away from the imaging assembly such that no or substantially no reflected aim light impinges on the imager of the imaging assembly.

公开(公告)号：US10452885B1

公开(公告)日：2019-10-22

申请号：US15955255

申请日：2018-04-17

Applicant: Zebra Technologies Corporation

Inventor： Harry E. Kuchenbrod ,  David P. Goren ,  Chinh Tan

IPC: G06K7/10 ,  G06K7/14

Abstract: In an embodiment, the present invention is a barcode reader that includes: a first imaging assembly configured to capture a first image; a second imaging assembly positioned relative to the first imaging assembly and configured to capture a second image; and a controller communicatively coupled to the first imaging assembly and the second imaging assembly. The controller is configured to: calculate a first contrast level within a first region within the first image; calculate a second contrast level within a second region within the second image; execute a first barcode-decode operation on the first image when the first contrast level is greater than the second contrast level; and execute the first barcode-decode operation on the second image when the second contrast level is greater than the first contrast level.