公开(公告)号：US09294754B2

公开(公告)日：2016-03-22

申请号：US13757301

申请日：2013-02-01

Applicant: Lumentum Operations LLC

Inventor： Bryed Billerbeck ,  An-Chun Tien ,  Lucas Morales

IPC: H04N13/02 ,  G01S17/89 ,  G01S7/481 ,  G01S7/484 ,  G01S7/486

CPC classification number: H04N13/204 ,  G01S7/4814 ,  G01S7/484 ,  G01S7/4868 ,  G01S17/89

Abstract: In order to maximize the dynamic range and depth of field for a depth camera used in a time of flight system, the light source is modulated at a plurality of different frequencies, a plurality of different peak optical powers, a plurality of integration subperiods, a plurality of lens foci, aperture and zoom settings during each camera frame time. The different sets of settings effectively create subrange volumes of interest within a larger aggregate volume of interest, each having their own frequency, peak optical power, lens aperture, lens zoom and lens focus products consistent with the distance, object reflectivity, object motion, field of view, etc. requirements of various ranging applications.

Abstract translation: 为了最大化在飞行时间系统中使用的深度相机的动态范围和景深，光源以多个不同的频率，多个不同的峰值光功率，多个集成子周期， 多个镜头焦点，每个相机帧时间内的光圈和变焦设置。 不同的设置集合有效地在更大的感兴趣的聚集体积内创建感兴趣的子范围体积，每个体积具有与距离，物体反射率，物体运动，场的一致的它们自己的频率，峰值光焦度，透镜孔径，透镜缩放和透镜焦距产品 的视野等要求的各种测距应用。

公开(公告)号：US09729853B2

公开(公告)日：2017-08-08

申请号：US13757385

申请日：2013-02-01

Applicant: Lumentum Operations LLC

Inventor： Bryed Billerbeck ,  James Yonghong Guo ,  An-Chun Tien ,  Vincent V. Wong ,  Ferdinand Mendoza

IPC: H04N13/02 ,  G01S7/481

CPC classification number: H04N13/20 ,  G01S7/4814

Abstract: The use of one or more angled or curved and diverging light pipes or reflectors placed in a light source's, e.g. diode's, emission path at appropriate distances, angles and divergence, such that a diode's emission spot size is modified and or redirected from the diode's natural emission path to alternative planes at angle to the diode's natural emission path so that a diode emission safe spot size can be achieved on any plane at angle to the original diode natural emission path at minimum distances from the diode's point of emission.

公开(公告)号：US09442195B2

公开(公告)日：2016-09-13

申请号：US14051986

申请日：2013-10-11

Applicant: Lumentum Operations LLC

Inventor： An-Chun Tien ,  Lucas Morales ,  Vincent V. Wong

IPC: G01C3/08 ,  G01S17/08 ,  G01S17/89 ,  G01S7/491

CPC classification number: G01S17/08 ,  G01S7/4911 ,  G01S17/89

Abstract: A time of flight camera device comprises an light source for illuminating an environment including an object with light of a first wavelength; an image sensor for measuring time the light has taken to travel from the light source to the object and back; optics for gathering reflected light from the object and imaging the environment onto the image sensor; driver electronics for controlling the light source with a high speed signal at a clock frequency; and a controller for calculating the distance between the object and the illumination unit. To minimize power consumption and resulting heat dissipation requirements, the light source/driver electronics are operated at their resonant frequency. Ideally, the driver electronics includes a reactance adjuster for changing a resonant frequency of the illumination unit and driver electronics system.

Abstract translation: 飞行时间相机装置包括用于照亮包括具有第一波长的光的物体的环境的光源; 用于测量光已经从光源到物体和背部行进的时间的图像传感器; 用于从物体收集反射光并将环境成像到图像传感器上的光学器件; 用于以时钟频率以高速信号控制光源的驱动器电路; 以及用于计算物体与照明单元之间的距离的控制器。 为了最大限度地降低功耗并导致散热要求，光源/驱动器电路以其谐振频率工作。 理想地，驱动器电子器件包括用于改变照明单元和驱动器电子系统的谐振频率的电抗调节器。