ELECTRONIC CIRCUIT FOR CONTROLLING CHARGING OF A PIEZOELECTRIC LOAD

    公开(公告)号:US20180367065A1

    公开(公告)日:2018-12-20

    申请号:US16061966

    申请日:2017-01-06

    申请人: Polight AS

    发明人: Tore SVORTDAL

    IPC分类号: H02N2/06 H02N2/02 G02B26/08

    摘要: The invention relates to an electronic circuit (100) for controlling charging of a piezoelectric load (190). The electronic circuit comprises a charge pump (111) configured to supply a charging current to the piezoelectric load dependent on a charge control signal (131), a measurement circuit (113) configured to obtain a load voltage corresponding to a terminal voltage at a load terminal of the piezoelectric load, a comparator circuit (114) configured to compare an adjustable reference voltage with the load voltage. The electronic circuit is configured to determine the charge control signal dependent on the comparison so that the control signal controls delivery of the charging current dependent on the comparison. The electronic circuit is further configured to set the adjustable reference voltage to a target voltage (VT) and to set the adjustable reference voltage to a low limit voltage (Vlow), being lower than the target voltage, when the load voltage reaches the target voltage.

    TRANSPARENT OPTICAL DEVICE ELEMENT
    2.
    发明申请
    TRANSPARENT OPTICAL DEVICE ELEMENT 审中-公开
    透明光器件元件

    公开(公告)号:US20170075042A1

    公开(公告)日:2017-03-16

    申请号:US15294290

    申请日:2016-10-14

    申请人: Polight AS

    发明人: Lars Henriksen

    摘要: The present invention relates to transparent optical device elements comprising a deformable lens body and to a method for changing the refractive index (RI) of a deformable lens body. The deformable lens body of the invention has an improved mechanical stability, a high refractive index, an optimal degree of stiffness and sheer modulus for use as optical lens.

    摘要翻译: 本发明涉及包括可变形透镜体的透明光学器件元件和用于改变可变形透镜体的折射率(RI)的方法。 本发明的可变形透镜体具有改进的机械稳定性,高折射率,用于光学透镜的最佳刚度和剪切模量。

    PIEZOELECTRICALLY ACTUATED OPTICAL LENS

    公开(公告)号:US20170199357A1

    公开(公告)日:2017-07-13

    申请号:US15325681

    申请日:2015-07-17

    申请人: Polight AS

    摘要: There is presented a transparent optical device element (700) comprising an optical lens (744), comprising one or more piezoelectric actuators (206, 208, 210), wherein said optical lens (744) comprises an optical aperture (632), and wherein the optical device element furthermore comprises a passivation layer (312, 314, 742, 628) placed on said optical lens, said passivation layer comprising a barrier layer (312)forming a humidity barrier, and being located on at least a portion of said cover member, where said portion of said cover member is intersected by the optical axis, and on said piezoelectric actuators, and wherein the passivation layer furthermore comprises one or more further layers (628) located on at least said portion of said cover member being intersected by the optical axis, wherein said passivation layer forms an anti-reflection coating for said optical lens (744) at least along the optical axis (634).

    METHOD FOR OPTIMIZING A PIEZOELECTRIC ACTUATOR STRUCTURE FOR A DEFORMABLE LENS
    5.
    发明申请
    METHOD FOR OPTIMIZING A PIEZOELECTRIC ACTUATOR STRUCTURE FOR A DEFORMABLE LENS 有权
    用于优化用于可变形镜片的压电致动器结构的方法

    公开(公告)号:US20150285962A1

    公开(公告)日:2015-10-08

    申请号:US14430344

    申请日:2013-09-18

    申请人: POLIGHT AS

    IPC分类号: G02B3/14 G03B3/10

    摘要: The present invention comprises a system and a method thereof for identifying a specific Interdigitated Electrode pattern arrangement for piezoelectric actuators located around an aperture of a flexible lens body, wherein the Interdigitated Electrode configuration is configurable, when activated, to provide a specific definable bending force distribution, thereby providing a specific definable shaping of the flexible lens body, thereby providing specific definable optical characteristics of the flexible lens body.

    摘要翻译: 本发明包括一种系统及其方法,用于识别位于柔性透镜体的孔周围的压电致动器的特定的互补电极图案布置,其中互锁电极配置在被激活时可配置以提供特定的可定义的弯曲力分布 从而提供柔性透镜体的具体的可定义的成形,从而提供柔性透镜体的特定的可定义的光学特性。

    Depth map based perspective correction in digital photos

    公开(公告)号:US10154241B2

    公开(公告)日:2018-12-11

    申请号:US15508390

    申请日:2015-09-04

    申请人: Polight AS

    摘要: The invention relates to post-processing of a digital photo to correct perspective distortion in the photo. The correction applies a digital photo of a scene and a depth map associated with the photo and comprising, for each pixel in the photo, a depth being a distance between a part of the scene in that pixel and a position of the camera at the time of acquisition. The correction is performed locally, so that the correction of any pixel in the photo depends on the depth of that pixel. The correction can be implemented as a transformation of each pixel in the original photo into a new position in a corrected photo. Afterwards, pixel values has to be calculated for the pixels in the corrected photo using the original pixel values and their new positions. The invention is particularly relevant for photos where objects or scenes involves a large magnification variation, such as selfies, close up photos, and photos when the extension of a large, object is not orthogonal to the optical axis of the camera (low/high angle shots).

    DEPTH MAP BASED PERSPECTIVE CORRECTION IN DIGITAL PHOTOS

    公开(公告)号:US20170289516A1

    公开(公告)日:2017-10-05

    申请号:US15508390

    申请日:2015-09-04

    申请人: Polight AS

    IPC分类号: H04N13/00

    摘要: The invention relates to post-processing of a digital photo to correct perspective distortion in the photo. The correction applies a digital photo of a scene and a depth map associated with the photo and comprising, for each pixel in the photo, a depth being a distance between a part of the scene in that pixel and a position of the camera at the time of acquisition. The correction is performed locally, so that the correction of any pixel in the photo depends on the depth of that pixel. The correction can be implemented as a transformation of each pixel in the original photo into a new position in a corrected photo. Afterwards, pixel values has to be calculated for the pixels in the corrected photo using the original pixel values and their new positions. The invention is particularly relevant for photos where objects or scenes involves a large magnification variation, such as selfies, close up photos, and photos when the extension of a large, object is not orthogonal to the optical axis of the camera (low/high angle shots).

    A TRANSPARENT OPTICAL DEVICE ELEMENT
    9.
    发明申请
    A TRANSPARENT OPTICAL DEVICE ELEMENT 有权
    透明光学元件

    公开(公告)号:US20160033690A1

    公开(公告)日:2016-02-04

    申请号:US14777265

    申请日:2014-03-18

    申请人: POLIGHT AS

    发明人: Lars Henriksen

    IPC分类号: G02B3/14 G02B1/10 G02B1/04

    摘要: The present invention relates to transparent optical device elements comprising a deformable lens body and to a method for changing the refractive index (RI) of a deformable lens body. The deformable lens body of the invention has an improved mechanical stability, a high refractive index, an optimal degree of stiffness and sheer modulus for use as optical lens.

    摘要翻译: 本发明涉及包括可变形透镜体的透明光学器件元件和用于改变可变形透镜体的折射率(RI)的方法。 本发明的可变形透镜体具有改进的机械稳定性,高折射率,用于光学透镜的最佳刚度和剪切模量。

    Piezoelectrically actuated optical lens

    公开(公告)号:US10001629B2

    公开(公告)日:2018-06-19

    申请号:US15325681

    申请日:2015-07-17

    申请人: Polight AS

    摘要: There is presented a transparent optical device element (700) comprising an optical lens (744), comprising one or more piezoelectric actuators (206, 208, 210), wherein said optical lens (744) comprises an optical aperture (632), and wherein the optical device element furthermore comprises a passivation layer (312, 314, 742, 628) placed on said optical lens, said passivation layer comprising a barrier layer (312) forming a humidity barrier, and being located on at least a portion of said cover member, where said portion of said cover member is intersected by the optical axis, and on said piezoelectric actuators, and wherein the passivation layer furthermore comprises one or more further layers (628) located on at least said portion of said cover member being intersected by the optical axis, wherein said passivation layer forms an anti-reflection coating for said optical lens (744) at least along the optical axis (634).