Laser marking through the lens of an image scanning system with multiple location image calibration

    公开(公告)号:US10752017B2

    公开(公告)日:2020-08-25

    申请号:US16669896

    申请日:2019-10-31

    IPC分类号: G06K9/00 B41J2/47 B41J2/44

    摘要: A laser marking system includes a laser, an image capture device, a marking head including electromagnetic energy deflectors and a lens, beam paths of the laser of the image capture device both passing through the lens, and a computer system. The computer system is programmed to perform a method including generating an image calibration model at each of multiple areas across a marking field of the laser marking system, adjusting the electromagnetic energy deflectors to direct the beam path of the image capture device to multiple different locations within the marking field of the laser marking system, and capturing image tiles at each of the multiple different locations with the image capture device, wherein at each of the multiple different locations, if a location corresponds to an area at which an image calibration model was generated, correcting the image tile according to the image calibration model generated at the location.

    Method and marking apparatus for applying a marking on an object

    公开(公告)号:US11829816B2

    公开(公告)日:2023-11-28

    申请号:US17441206

    申请日:2020-01-13

    IPC分类号: G06K19/06 G06K1/12

    CPC分类号: G06K1/126 G06K19/06037

    摘要: The invention relates to a method for applying a marking on an object according to image data, wherein the image data comprises pixels with first pixel values and pixels with second pixel values, and wherein the marking to be produced comprises several cells, each cell corresponding to one pixel of the image data, in which at least one light beam is emitted with light emitting means; a deflection direction of scanning means for deflecting the light beam is scanned over the object; when the deflection direction points at a cell corresponding to a pixel with a first pixel value, the light emitting means are activated to produce a mark in that cell; and; when the deflection direction points at a cell corresponding to a pixel with a second pixel value, the light emitting means are deactivated to leave that cell blank. The method is characterized in that the deflection direction is altered in a meander pattern for cells that correspond to pixels with first pixel values, and in a straight movement for cells that correspond to pixels with second pixel values. The invention further relates to a marking apparatus for applying a marking on an object.

    Embossing Structure
    5.
    发明申请
    Embossing Structure 审中-公开
    压花结构

    公开(公告)号:US20140245911A1

    公开(公告)日:2014-09-04

    申请号:US14236407

    申请日:2012-08-03

    IPC分类号: B41J3/38

    摘要: The invention relates to an embossing structure for displaying different images in different viewing directions. The embossing structure comprises a plurality of grooves, wherein each groove comprises a first side wall for displaying one line of a first image in a first viewing direction, and a second side wall for displaying one line of a second image in a second viewing direction. The inventive embossing structure is characterized in that each groove further comprises a bottom section for displaying one line of a third image in a third viewing direction, and each of the bottom section, the first side wall and the second side wall comprises recesses which define the amount of light that is scattered in the respective viewing direction corresponding to pixel values of the three images. The invention further relates to an embossing structure for displaying four different images in four different viewing directions.

    摘要翻译: 本发明涉及一种用于在不同观看方向上显示不同图像的压纹结构。 压花结构包括多个凹槽,其中每个凹槽包括用于在第一观察方向上显示第一图像的一行的第一侧壁和用于在第二观察方向上显示第二图像的一行的第二侧壁。 本发明的压花结构的特征在于,每个凹槽还包括用于在第三观察方向上显示一行第三图像的底部部分,并且底部部分,第一侧壁和第二侧壁中的每一个包括限定 对于与三个图像的像素值相对应的在各个观察方向上散射的光量。 本发明还涉及一种用于在四个不同观察方向上显示四个不同图像的压纹结构。

    ELECTROMAGNETIC RADIATION SYSTEM
    7.
    发明申请

    公开(公告)号:US20220402071A1

    公开(公告)日:2022-12-22

    申请号:US17761814

    申请日:2020-09-18

    摘要: An electromagnetic radiation system for directing an electromagnetic radiation beam (11) at a target (28) having a first arrangement (12) in which the radiation beam (11) is directed along a marking beam path that is within a marking range of the electromagnetic radiation system and a second arrangement (12, 15) in which the radiation beam (27) is directed along a different beam path (27) that is not within the marking range of the electromagnetic radiation system, wherein a positional relationship between the marking beam path (11) and the different beam path (27) satisfies a predetermined condition at the target (28) when the electromagnetic radiation system is at a predetermined distance (29) from the target (28).

    METHOD AND MARKING APPARATUS FOR APPLYING A MARKING ON AN OBJECT

    公开(公告)号:US20220156470A1

    公开(公告)日:2022-05-19

    申请号:US17441206

    申请日:2020-01-13

    IPC分类号: G06K1/12 G06K19/06

    摘要: The invention relates to a method for applying a marking on an object according to image data, wherein the image data comprises pixels with first pixel values and pixels with second pixel values, and wherein the marking to be produced comprises several cells, each cell corresponding to one pixel of the image data, in which at least one light beam is emitted with light emitting means; a deflection direction of scanning means for deflecting the light beam is scanned over the object; when the deflection direction points at a cell corresponding to a pixel with a first pixel value, the light emitting means are activated to produce a mark in that cell; and; when the deflection direction points at a cell corresponding to a pixel with a second pixel value, the light emitting means are deactivated to leave that cell blank. The method is characterized in that the deflection direction is altered in a meander pattern for cells that correspond to pixels with first pixel values, and in a straight movement for cells that correspond to pixels with second pixel values. The invention further relates to a marking apparatus for applying a marking on an object.

    METHOD FOR APPLYING A MARKING ON AN OBJECT AND MARKING APPARATUS

    公开(公告)号:US20220153049A1

    公开(公告)日:2022-05-19

    申请号:US17441216

    申请日:2020-01-13

    IPC分类号: B41M5/26 B41M5/24 B41M5/48

    摘要: The invention relates to a method for applying a marking within a marking area on an object, in which at least one light beam is emitted with light emitting means, scanning means are moved to deflect the light beam line by line over the marking area, while the light emitting means is switched between being activated or deactivated according to the marking to be applied. The method is characterized in that, for each start of a line movement of the light beam over the object, the scanning means is moved such that its deflection direction points at a line starting point outside the marking area and the scanning means is accelerated such that its deflection direction is accelerated from the line starting point towards the marking area, wherein the light emitting means is deactivated while the deflection direction points somewhere outside the marking area. The invention further relates to a corresponding marking apparatus.