Structured light projector and projector assembly thereof

    公开(公告)号:US11526020B2

    公开(公告)日:2022-12-13

    申请号:US16180177

    申请日:2018-11-05

    Abstract: A projector assembly includes three coaxially aligned lenses and an aperture stop. The three coaxially aligned lenses include a first lens and, in order of increasing distance therefrom and on a same side thereof, a second lens and a positive meniscus lens. The first lens is a positive lens. The second lens is a negative lens. The second lens is located between the aperture stop and the positive meniscus lens. The projector assembly is one-sided telecentric at a plane proximate the positive meniscus lens.

    Three-Surface Wide Field-Of-View Lens System

    公开(公告)号:US20170097497A1

    公开(公告)日:2017-04-06

    申请号:US14875012

    申请日:2015-10-05

    Abstract: A three-surface wafer-level lens system for imaging a wide field-of-view scene onto an image plane includes (a) a first wafer-level lens with (i) a first substrate having a first planar surface facing the image plane, and (ii) a first lens element bonded to the first planar surface and having a first lens surface facing the image plane, and (b) a second wafer-level lens with (i) a second substrate having a second planar surface facing away from the image plane, (ii) a third substrate bonded to the second substrate and having a third planar surface facing the image plane, (iii) a second lens element bonded to the second planar surface and having a second lens surface facing away from the image plane, and (iv) a third lens element bonded to the third planar surface and having a third lens surface facing the image plane.

    Optical Zoom Imaging Systems And Associated Methods
    3.
    发明申请
    Optical Zoom Imaging Systems And Associated Methods 有权
    光学变焦成像系统及相关方法

    公开(公告)号:US20150319368A1

    公开(公告)日:2015-11-05

    申请号:US14270318

    申请日:2014-05-05

    Inventor: Tingyu Cheng

    Abstract: An optical zoom imaging system includes (1) first and second image sensors disposed on a common substrate, and (2) first and second optical blocks in optical communication with the first and second image sensors, respectively. The first and second optical blocks have different respective magnifications. An array includes a plurality of the optical zoom imaging systems. A method for imaging a scene includes the following steps: (1) generating first image data representing the scene at a first zoom level using a first optical block in optical communication with a first image sensor, (2) generating second image data representing the scene at a second zoom level using a second optical block in optical communication with a second image sensor, the second zoom level being different from the first zoom level, and (3) selecting between the first image data and the second image data based on a desired zoom level.

    Abstract translation: 光学变焦成像系统包括(1)设置在公共基板上的第一和第二图像传感器,以及(2)分别与第一和第二图像传感器光学通信的第一和第二光学块。 第一和第二光学块具有不同的各自的放大率。 阵列包括多个光学变焦成像系统。 一种用于对场景成像的方法包括以下步骤:(1)使用与第一图像传感器进行光通信的第一光块生成表示第一缩放级别的场景的第一图像数据,(2)生成表示场景的第二图像数据 使用与第二图像传感器光学通信的第二光学块在第二缩放级别,所述第二缩放级别与所述第一缩放级别不同,以及(3)基于期望的所述第一缩放级别在所述第一图像数据和所述第二图像数据之间进行选择 缩放级别。

    Low-height projector assembly
    4.
    发明授权

    公开(公告)号:US11131858B2

    公开(公告)日:2021-09-28

    申请号:US16155833

    申请日:2018-10-09

    Abstract: A low-height projector assembly includes a biconvex lens, a converging lens, an aperture stop, and a beam-steerer between the biconvex lens and the converging lens. The biconvex lens has a principal plane, a focal length, and a first optical axis. The converging lens has a second optical axis laterally offset from the first. The beam-steerer is configured to steer light from the biconvex lens to the converging lens. An aperture-stop plane intersects the second optical axis and the aperture stop. On the second optical axis, at least one of a front surface and a back surface of the converging lens is between the aperture-stop plane and the beam-steerer. The axial chief ray's propagation distance from the principal plane to the aperture stop differs from the focal length by less than half the depth of focus of the biconvex lens.

    Near-Infrared Hybrid Lens Systems With Wide Field Of View

    公开(公告)号:US20170097499A1

    公开(公告)日:2017-04-06

    申请号:US14875051

    申请日:2015-10-05

    Abstract: A near-infrared hybrid lens system for imaging a wide field-of-view scene onto an image plane includes (a) a first cast lens positioned closest to the scene and at least partly transmissive to near-infrared light, (b) a second cast lens positioned closest to the image plane and at least partly transmissive to near-infrared light, and (c) a wafer-level lens at least partly transmissive to near-infrared light and disposed between the first cast lens and the second cast lens, wherein the wafer-level lens has (i) a planar substrate with a first surface facing away from the image plane and a second surface facing the image plane, (ii) a first lens element disposed on the first surface, and (iii) a second lens element disposed on the second surface.

    Low-profile hybrid lens systems and methods for manufacturing the same
    6.
    发明授权
    Low-profile hybrid lens systems and methods for manufacturing the same 有权
    低调混合透镜系统及其制造方法

    公开(公告)号:US09377603B1

    公开(公告)日:2016-06-28

    申请号:US14605472

    申请日:2015-01-26

    CPC classification number: G02B13/0085 G02B13/0035 G02B13/006

    Abstract: A low-profile hybrid lens system, for imaging a scene onto an image plane, includes (a) a wafer-level lens with (i) a planar substrate having opposing first and second surfaces, (ii) a first lens element of a first material and disposed on the first surface, and (iii) a second lens element of a second material and disposed on the second surface; (b) a first cast lens; and (c) a second cast lens; wherein the wafer-level lens, the first cast lens, and the second cast lens are optically coupled in series. A method for manufacturing a low-profile hybrid lens system includes mounting a wafer-level lens, a first cast lens, and a second cast lens in a fixture to optically couple, in series, the wafer-level lens and the first and second cast lenses.

    Abstract translation: 一种用于将场景成像到图像平面上的低调混合透镜系统包括(a)晶片级透镜,其具有(i)具有相对的第一和第二表面的平面基板,(ii)第一透镜元件 材料并且设置在第一表面上,和(iii)第二材料的第二透镜元件并且设置在第二表面上; (b)第一投影透镜; 和(c)第二投影透镜; 其中所述晶片级透镜,所述第一投影透镜和所述第二投影透镜被串联光学耦合。 一种用于制造低轮廓混合透镜系统的方法,包括将晶片级透镜,第一投影透镜和第二投影透镜安装在固定装置中以串联光学耦合晶片级透镜和第一和第二铸造 镜头

    Imaging system and bimodal zoom lens thereof

    公开(公告)号:US11061211B2

    公开(公告)日:2021-07-13

    申请号:US16243935

    申请日:2019-01-09

    Abstract: A bimodal zoom lens includes three coaxially aligned lenses including a first lens, a third lens, and a second lens therebetween. The first lens is a negative lens, each of the second lens and the third lens is a positive lens. The three coaxially aligned lenses form (i) a first configuration when the second lens and the first lens are separated by an axial distance L11 and (ii) a second configuration when the second lens and the first lens are separated by an axial distance L12, which exceeds axial distance L11. The second configuration has a second effective focal length that exceeds a first effective focal length of the first configuration.

    FOUR-ELEMENT ATHERMAL LENS
    8.
    发明申请

    公开(公告)号:US20180081154A1

    公开(公告)日:2018-03-22

    申请号:US15273051

    申请日:2016-09-22

    CPC classification number: G02B13/14 G02B5/005 G02B7/028 G02B9/34

    Abstract: A four-element athermal lens includes four coaxially aligned lenses including a (i) first lens and, in order of increasing distance therefrom and on a same side thereof, (ii) a second lens, a third lens, and a fourth lens. The first lens and the second lens are positive lenses. The third and fourth lenses are negative lenses. The first lens, second lens, third lens, and fourth lens have equal respective refractive indices n1, n2, n3, and n4. A difference between (i) the maximum of n1, n2, n3, and n4 and (ii) the minimum of n1, n2, n3, and n4 being less than 0.05 in a free-space wavelength range. Refractive indices n1, n2, n3, and n4 have respective temperature dependences Δ   n 1 Δ   T , Δ   n 2 Δ   T , Δ   n 3 Δ   T , Δ   n 4 Δ   T . Each of Δ   n 1 Δ   T   and   Δ   n 2 Δ   T exceeds, in the free-space wavelength range, each of Δ   n 3 Δ   T   and   Δ   n 4 Δ   T by a factor between 2.05 and 2.85, inclusive.

    Optical zoom imaging systems and associated methods
    10.
    发明授权
    Optical zoom imaging systems and associated methods 有权
    光学变焦成像系统及相关方法

    公开(公告)号:US09300877B2

    公开(公告)日:2016-03-29

    申请号:US14270318

    申请日:2014-05-05

    Inventor: Tingyu Cheng

    Abstract: An optical zoom imaging system includes (1) first and second image sensors disposed on a common substrate, and (2) first and second optical blocks in optical communication with the first and second image sensors, respectively. The first and second optical blocks have different respective magnifications. An array includes a plurality of the optical zoom imaging systems. A method for imaging a scene includes the following steps: (1) generating first image data representing the scene at a first zoom level using a first optical block in optical communication with a first image sensor, (2) generating second image data representing the scene at a second zoom level using a second optical block in optical communication with a second image sensor, the second zoom level being different from the first zoom level, and (3) selecting between the first image data and the second image data based on a desired zoom level.

    Abstract translation: 光学变焦成像系统包括(1)设置在公共基板上的第一和第二图像传感器,以及(2)分别与第一和第二图像传感器光学通信的第一和第二光学块。 第一和第二光学块具有不同的各自的放大率。 阵列包括多个光学变焦成像系统。 一种用于对场景成像的方法包括以下步骤:(1)使用与第一图像传感器进行光通信的第一光块生成表示第一缩放级别的场景的第一图像数据,(2)生成表示场景的第二图像数据 使用与第二图像传感器光学通信的第二光学块在第二缩放级别,所述第二缩放级别与所述第一缩放级别不同,以及(3)基于期望的所述第一缩放级别在所述第一图像数据和所述第二图像数据之间进行选择 缩放级别。

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