Flight time sensor and surveillance system comprising such a sensor

    公开(公告)号:US12298393B2

    公开(公告)日:2025-05-13

    申请号:US17413766

    申请日:2019-11-26

    Abstract: The invention relates to a flight time sensor (10) comprising:—a lighting device (11) comprising a light source (12) which emits a source beam (13) in the direction of a scene (3) comprising an object (4) which is capable of reflecting the source beam;—a detector (15) comprising a matrix (16) of photo-sensitive pixels (16A) which receive a portion (18) of the source beam reflected by the object; and—an electronic unit (19) which is configured:—to generate a modulation signal and to control the device by means of this signal so that the source beans has a source light power which is modulated temporally;—to process electric signals which are supplied as a function of time by the detector, each electric signal representing a fraction of the source light power reflected in the direction of a pixel; and—to deduce from the electric signals a characteristic distance (Dobj) between the object and the device. According to the invention, the unit is configured, when the object is detected as being at a characteristic distance smaller than a predetermined threshold distance, to control the device in order to reduce the average source light power.

    CONTROL SYSTEM AND METHOD FOR A DEVICE FOR GENERATING SCANNED IMAGES, IMAGE GENERATING DEVICE AND DISPLAY INCLUDING SUCH A SYSTEM
    5.
    发明申请
    CONTROL SYSTEM AND METHOD FOR A DEVICE FOR GENERATING SCANNED IMAGES, IMAGE GENERATING DEVICE AND DISPLAY INCLUDING SUCH A SYSTEM 审中-公开
    用于产生扫描图像的设备的控制系统和方法,图像生成设备和包括这样的系统的显示

    公开(公告)号:US20160156889A1

    公开(公告)日:2016-06-02

    申请号:US14904192

    申请日:2014-06-30

    Abstract: The invention relates to a control system (3) for a device (1) for generating scanned images, particularly for a display, specifically for a head up display. Said device is intended to form, from a light beam, an image (105) to be transmitted by an optical system (22). Said control system (3) includes a unit for generating scanning signals for causing a deviation of said beam such as to form said output image (105) from said image generation device (1), characterized in that said control system (3) is configured such that the scanning signals include a correction component enabling said image (105) to have a deformation that is the reverse of that produced by said optical system (22).

    Abstract translation: 本发明涉及一种用于产生扫描图像的设备(1)的控制系统(3),特别是用于显示器,特别是用于抬头显示器的扫描图像。 所述装置旨在从光束形成由光学系统(22)传输的图像(105)。 所述控制系统(3)包括用于产生用于使所述光束偏离的扫描信号的单元,以便从所述图像生成装置(1)形成所述输出图像(105),其特征在于,所述控制系统(3)被配置 使得扫描信号包括使所述图像(105)具有与所述光学系统(22)产生的变形相反的变形的校正分量。

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