公开(公告)号：US20230375410A1

公开(公告)日：2023-11-23

申请号：US17749410

申请日：2022-05-20

Applicant: Facebook Technologies, LLC

Inventor： Aiqing Chen ,  Chandra Sekhar Kakani ,  Evan Michael Pollard ,  Ashvath Sharma

IPC: G01J4/00

CPC classification number: G01J4/00 ,  G01J2004/002

Abstract: The disclosed apparatus may include a holding affordance that is configured to hold an optical element, a beam emitter, and a beam sensor, where the holding affordance is positioned, along a first dimension, between the beam emitter and the beam sensor; a first linear stage that supports the beam emitter and that, when actuated, moves the beam emitter along a second dimension; a first rotational stage that supports the beam emitter and that, when actuated, rotates the beam emitter in a staging plane defined by the first dimension and the second dimension; a second linear stage that supports the beam sensor and that, when actuated, moves the beam sensor along the second dimension; and a second rotational stage that supports the beam sensor and that, when actuated, rotates the beam sensor in the staging plane. Various other systems and methods are also disclosed.

公开(公告)号：US20180066991A1

公开(公告)日：2018-03-08

申请号：US15556995

申请日：2016-03-10

Applicant: PRESIDENT AND FELLOWS OF HARVARD COLLEGE

Inventor： Jan Philipp Balthasar MUELLER ,  Kristjan LEOSSON ,  Federico CAPASSO

IPC: G01J4/02 ,  G01N21/47 ,  H01Q21/24 ,  G01R29/08 ,  G01J4/04

CPC classification number: G01J4/02 ,  G01J4/04 ,  G01J2004/002 ,  G01N21/47 ,  G01N2021/4792 ,  G01R29/0814 ,  G01R29/0892 ,  H01Q21/24

Abstract: A polarimeter includes an integrated device with an array of antennas including multiple column pairs. Each column pair has two columns, and each column in each column pair includes multiple antennas. A first column of each column pair in the array scatters a first polarization component of an incident radiation, and a second column of each column pair in the array scatters a second polarization component of the incident radiation. The scattered fields of the column pairs interfere constructively in a direction depending on the polarization of the incident radiation, resulting in maximal intensity at a certain point in space for a specific polarization state. Multiple column pairs in parallel and oriented at angles with respect to each other can be used to scatter different polarization components of the incident radiation directionally to different points in space. Detectors are positioned with respect to the integrated device to detect polarization components.

公开(公告)号：US20150362369A1

公开(公告)日：2015-12-17

申请号：US14303639

申请日：2014-06-13

Applicant: GE Aviation Systems LLC

Inventor： Jerry Lynne Page

IPC: G01J4/04

CPC classification number: G01J4/04 ,  G01C3/08 ,  G01C21/00 ,  G01J2004/002

Abstract: A relative navigation system and a method of eliminating spurious signals that may be received by a relative navigation system having a first object and a second object including projecting polarized light having a first orientation to form at least one grid line projecting into space from the first object.

Abstract translation: 一种相对导航系统和一种消除可能由具有第一物体和第二物体的相对导航系统接收的杂散信号的方法，所述相关导航系统包括具有第一取向的突出偏振光，以形成从第一物体突出到空间中的至少一个栅格线 。

公开(公告)号：US11733100B2

公开(公告)日：2023-08-22

申请号：US17271162

申请日：2019-09-17

Applicant: Nippon Telegraph and Telephone Corporation

Inventor： Masashi Miyata ,  Mitsumasa Nakajima ,  Toshikazu Hashimoto

IPC: G01J4/04 ,  G02B5/30 ,  G01J4/00

CPC classification number: G01J4/04 ,  G02B5/30 ,  G01J2004/002

Abstract: A polarization imaging image-pickup system includes an image-pickup unit array that includes a plurality of image-pickup units arranged two-dimensionally, wherein the image-pickup units each include: one wavefront control element that includes a plurality of microscopic structures; and a pixel array that is arranged so as to face the wavefront control element, and includes a plurality of pixels that are associated with the wavefront control element and are two-dimensionally arranged, and light from an imaging object is spatially separated by the one wavefront control element into first polarized light, and a second polarized light that is in a direction orthogonal to the first polarized light or has a rotation direction opposite to a rotation direction of the first polarized light, the first polarized light is collected at a first collection position on the pixel array, and the second polarized light is collected at a second collection position on the pixel array.

公开(公告)号：US09506806B2

公开(公告)日：2016-11-29

申请号：US14643926

申请日：2015-03-10

Applicant: CANON KABUSHIKI KAISHA

Inventor： Daisuke Sano

IPC: G01J4/00 ,  G01J4/04 ,  G02B5/30 ,  G01J4/02

CPC classification number: G01J4/04 ,  G01J4/02 ,  G01J2004/002 ,  G02B5/3083

Abstract: An polarization information acquisition unit includes a phase adjuster configured to adjust phases of two linearly polarized components of incident light, which oscillate in directions orthogonal to each other, a detector configured to transmit a polarized component oscillating in one direction and not to transmit a polarized component oscillating in a direction orthogonal to the one direction, the polarized components being included in light emitted from the phase adjuster, and a photoelectric convertor configured to photoelectrically convert a polarized component transmitted through the detector. The phase adjuster has at least three areas. The at least three areas include at least two areas having phase adjusting amounts different from each other, and at least two areas having an identical phase adjusting amounts and having slow axes whose directions are different from each other by 20 to 90 degrees inclusive.

Abstract translation: 偏振信息获取单元包括：相位调整器，被配置为调节在彼此正交的方向上振荡的入射光的两个线偏振分量的相位;检测器，被配置为传输在一个方向上振荡的偏振分量，而不透射偏振分量 在与所述一个方向正交的方向上振荡，所述偏振分量包括在从所述相位调制器发出的光中，以及光电转换器，被配置为对透过所述检测器的偏振分量进行光电转换。 相位调节器至少有三个区域。 所述至少三个区域包括具有彼此不同的相位调整量的至少两个区域，以及具有相同相位调整量的至少两个区域，并且具有方向彼此相差20到90度的慢轴。

公开(公告)号：US09383261B2

公开(公告)日：2016-07-05

申请号：US14303639

申请日：2014-06-13

Applicant: GE Aviation Systems LLC

Inventor： Jerry Lynne Page

IPC: G01J4/00 ,  G01J4/04 ,  G01C21/00

CPC classification number: G01J4/04 ,  G01C3/08 ,  G01C21/00 ,  G01J2004/002

Abstract: A relative navigation system and a method of eliminating spurious signals that may be received by a relative navigation system having a first object and a second object including projecting polarized light having a first orientation to form at least one grid line projecting into space from the first object.

Abstract translation: 一种相对导航系统和一种消除可能由具有第一物体和第二物体的相对导航系统接收的杂散信号的方法，所述相关导航系统包括具有第一取向的突出偏振光，以形成从第一物体突出到空间中的至少一个栅格线 。

公开(公告)号：US20150253192A1

公开(公告)日：2015-09-10

申请号：US14643926

申请日：2015-03-10

Applicant: CANON KABUSHIKI KAISHA

Inventor： Daisuke Sano

IPC: G01J4/04 ,  G02B5/30

CPC classification number: G01J4/04 ,  G01J4/02 ,  G01J2004/002 ,  G02B5/3083

Abstract: An polarization information acquisition unit includes a phase adjuster configured to adjust phases of two linearly polarized components of incident light, which oscillate in directions orthogonal to each other, a detector configured to transmit a polarized component oscillating in one direction and not to transmit a polarized component oscillating in a direction orthogonal to the one direction, the polarized components being included in light emitted from the phase adjuster, and a photoelectric convertor configured to photoelectrically convert a polarized component transmitted through the detector. The phase adjuster has at least three areas. The at least three areas include at least two areas having phase adjusting amounts different from each other, and at least two areas having an identical phase adjusting amounts and having slow axes whose directions are different from each other by 20 to 90 degrees inclusive.

Abstract translation: 偏振信息获取单元包括：相位调整器，被配置为调节在彼此正交的方向上振荡的入射光的两个线偏振分量的相位;检测器，被配置为传输在一个方向上振荡的偏振分量，而不透射偏振分量 在与所述一个方向正交的方向上振荡，所述偏振分量包括在从所述相位调制器发出的光中，以及光电转换器，被配置为对透过所述检测器的偏振分量进行光电转换。 相位调节器至少有三个区域。 所述至少三个区域包括具有彼此不同的相位调整量的至少两个区域，以及具有相同相位调整量的至少两个区域，并且具有方向彼此相差20到90度的慢轴。