Optical fibre bend sensor
    1.
    发明授权
    Optical fibre bend sensor 有权
    光纤弯曲传感器

    公开(公告)号:US06621956B2

    公开(公告)日:2003-09-16

    申请号:US10053900

    申请日:2002-01-24

    IPC分类号: G02B634

    摘要: An optical fibre bend sensor (10) measures the degree and orientation of bending present in a sensor length (30) portion of a fibre assembly (26). Within a multicored fibre (30, 32,34), cores (62, 66) are grouped in non-coplanar pairs. An arrangement of optical elements (28, 36, 38) define within each core pair (62, 66) two optical paths (122, 124) which differ along the sensor length (30): one core (62) of a pair (62, 66) is included in the first path (122), and the other core (66) in the second path (124). A general bending of the sensor region (30) will lengthen one core (62, 66) with respect to the other. Interrogation of this length differential by means of interferometry generates interferograms from which the degree of bending in the plane of the core pair is extracted. Bend orientation can be deduced from data extracted from multiple core pairs.

    摘要翻译: 光纤弯曲传感器(10)测量存在于光纤组件(26)的传感器长度(30)部分中的弯曲的程度和取向。 在多芯光纤(30,32,34)内,核心(62,66)被分组成非共面对。 光学元件(28,36,38)的布置在每个芯对(62,66)内限定沿着传感器长度(30)不同的两个光路(122,124):一对(62)的一个芯(62) ,66)包括在第一路径(122)中,另一个核心(66)包括在第二路径(124)中。 传感器区域(30)的一般弯曲将相对于另一个将一个芯(62,66)延长。 通过干涉测量对这种长度差分的询问产生干涉图,从中提取出核心对的平面中的弯曲程度。 弯曲取向可以从从多个核心对提取的数据中推导出来。

    Optical fiber bend sensor
    2.
    发明授权
    Optical fiber bend sensor 有权
    光纤弯曲传感器

    公开(公告)号:US06389187B1

    公开(公告)日:2002-05-14

    申请号:US09446325

    申请日:2000-04-21

    IPC分类号: G02B600

    摘要: An optical fiber bend sensor (10) measures the degree and orientation of bending present in a sensor length (30) portion of a fiber assembly (26). Within a multicored fiber (30, 32, 34), cores (62, 66) are grouped in non-coplanar pairs. An arrangement of optical elements (28, 36, 38) define within each core pair (62, 66) two optical paths (122, 124) which differ along the sensor length (30): one core (62) of a pair (62, 66) is included in the first path (122), and the other core (66) in the second path (124). A general bending of the sensor region (30) will lengthen one core (62, 66) with respect to the other. Interrogation of this length differential by means of interferometry generates interferograms from which the degree of bending in the plane of the core pair is extracted. Bend orientation can be deduced from data extracted from multiple core pairs.

    摘要翻译: 光纤弯曲传感器(10)测量存在于光纤组件(26)的传感器长度(30)部分中的弯曲的程度和取向。 在多芯光纤(30,32,34)内,核心(62,66)被分组成非共面对。 光学元件(28,36,38)的布置在每个芯对(62,66)内限定沿着传感器长度(30)不同的两个光路(122,124):一对芯(62) ,66)包括在第一路径(122)中,另一个核心(66)包括在第二路径(124)中。 传感器区域(30)的一般弯曲将相对于另一个将一个芯(62,66)延长。 通过干涉测量对这种长度差分的询问产生干涉图,从中提取出核心对的平面中的弯曲程度。 弯曲取向可以从从多个核心对提取的数据中推导出来。

    Computation time reduction for the three-dimensional displays
    4.
    发明授权
    Computation time reduction for the three-dimensional displays 有权
    三维显示的计算时间缩短

    公开(公告)号:US07053925B2

    公开(公告)日:2006-05-30

    申请号:US10297487

    申请日:2001-05-24

    IPC分类号: H04N13/00 H04N15/00

    摘要: A reconfigurable, three-dimensional display (1) wherein knowledge of the viewer's (4) eyes is used to enable the effective exit pupil(s) of the display system to be optimised. The system utilises this knowledge to identify contributing regions (5) within the display (1) that contribute light to the viewer (4). Priority is given to calculating and displaying the part of the display corresponding to the contributing region (5), thereby allowing the system computation requirements to be minimised. Further computation savings are achievable by recognising that only light travelling in a limited range of angles need to be considered.

    摘要翻译: 可重构的三维显示器(1),其中使用观众(4)眼睛的知识来使显示系统的有效出射光瞳得以优化。 该系统利用这种知识来识别在显示器(1)内的向观察者(4)贡献光的贡献区域(5)。 优先考虑计算显示对应于贡献区域(5)的显示部分,从而使系统计算要求最小化。 通过认识到仅需要考虑在有限的角度范围内行进的光,可以实现进一步的计算节省。