DUAL ZONE SOLAR SENSOR
    3.
    发明授权
    DUAL ZONE SOLAR SENSOR 有权
    与两个区阳光传感器

    公开(公告)号:EP1133679B1

    公开(公告)日:2005-01-26

    申请号:EP99965761.2

    申请日:1999-11-04

    摘要: The present invention relates to a dual zone solar sensor (10) incorporating a calibratable diffuser (50) overlying a vertically oriented circuit board (20) having at least one photodetector (21, 22) affixed to either side of the circuit board (20) in a vertical plane. Each detector (21, 22) preferably has a mutually exclusive hemispherical view. By mounting the photodetectors (21, 22) in the vertical plane, the dual zone solar sensor device (10) is capable of providing information about the intensity of a source of incident solar radiation and the relative position of that source of radiation. While the angular responses of the photodetectors (21, 22) in their vertical orientation are very close to those desired by skilled artisans for a dual zone sensor, the addition of a diffuser (50) that is slidable, and therefore calibratable, provides a method by which the angular response of each photodetector (21, 22) may be permanently calibrated to achieve a precise desired angular response. The present inventive combination of features eliminates the need for complex and bulky electronic signal processing circuitry and decreases the number of parts necessary to achieve functions previously achieved only by larger sensors having a far greater number of component parts.

    DUAL ZONE SOLAR SENSOR
    4.
    发明公开
    DUAL ZONE SOLAR SENSOR 有权
    与两个区阳光传感器

    公开(公告)号:EP1133679A1

    公开(公告)日:2001-09-19

    申请号:EP99965761.2

    申请日:1999-11-04

    IPC分类号: G01J1/20 G08B17/12

    摘要: The present invention relates to a dual zone solar sensor (10) incorporating a calibratable diffuser (50) overlying a vertically oriented circuit board (20) having at least one photodetector (21, 22) affixed to either side of the circuit board (20) in a vertical plane. Each detector (21, 22) preferably has a mutually exclusive hemispherical view. By mounting the photodetectors (21, 22) in the vertical plane, the dual zone solar sensor device (10) is capable of providing information about the intensity of a source of incident solar radiation and the relative position of that source of radiation. While the angular responses of the photodetectors (21, 22) in their vertical orientation are very close to those desired by skilled artisans for a dual zone sensor, the addition of a diffuser (50) that is slidable, and therefore calibratable, provides a method by which the angular response of each photodetector (21, 22) may be permanently calibrated to achieve a precise desired angular response. The present inventive combination of features eliminates the need for complex and bulky electronic signal processing circuitry and decreases the number of parts necessary to achieve functions previously achieved only by larger sensors having a far greater number of component parts.

    TUNNEL SENSOR
    7.
    发明公开
    TUNNEL SENSOR 审中-公开
    传感器隧道

    公开(公告)号:EP1047573A1

    公开(公告)日:2000-11-02

    申请号:EP98958033.7

    申请日:1998-11-17

    IPC分类号: B60Q1/00

    摘要: A sensor (20, 100, 200, 300) for detecting the approach and exit of a vehicle (42) to a tunnel (46). In one embodiment there is a sensor (20, 100, 200, 300) with a photodiode (22a) that receives light through an inclined channel (30, 30') or aperture (32, 332, 432). The channel provides a field of view (44, 344, 31) ahead and above the vehicle. The photosensor (22a) is thus sensitive to the change in light from this field of view (44, 344, 31) as a vehicle enters (46a) and exits (46b) a tunnel (46). Some embodiments of the present invention include a second photosensor (22b) with a wider field of view (112, 112'', 111) for detecting ambient light.