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1. 发明申请

WO2005114643A2 OPTICAL POSITIONING DEVICE USING TELECENTRIC IMAGING 审中-公开
标题翻译：使用电子成像的光学定位装置
公开(公告)号：WO2005114643A2
公开(公告)日：2005-12-01
申请号：PCT/US2005/017462
申请日：2005-05-18
申请人： SILICON LIGHT MACHINES CORPORATION , TRISNADI, Jahja I , CARLISLE, Clinton B , ROXLO, Charles B , LEHOTY, David A
发明人： TRISNADI, Jahja I , CARLISLE, Clinton B , ROXLO, Charles B , LEHOTY, David A
IPC分类号： G09G5/08
CPC分类号： G06F3/0317
摘要： One embodiment relates to an optical displacement sensor for sensing movement of a data input device across a surface by determining displacement of optical features in a succession of frames. The sensor includes at least an illuminator (306), telecentric imaging optics (for example, 502 or 504) on the object (scattering surface) side, and an array of photosensitive elements (302). The illuminator (306) is configured to illuminate a portion of the surface (402). The telecentric imaging optics (for example, 502 or 504) is configured to image the optical features emanating from the illuminated portion of the surface (402), and the array of photosensitive elements (302) is configured to detect intensity data relating to the optical features imaged by the telecentric imaging optics (for example, 502 or 504). Other embodiments are also disclosed.
摘要翻译：一个实施例涉及一种光学位移传感器，用于通过确定一连串框架中的光学特征的位移来感测跨越表面的数据输入设备的移动。传感器至少包括照射器（306），物体（散射表面）侧上的远心成像光学器件（例如，502或504）和感光元件阵列（302）。照明器（306）被配置为照亮表面（402）的一部分。远心成像光学器件（例如，502或504）被配置成对从表面（402）的照射部分发出的光学特征进行成像，并且光敏元件阵列（302）被配置为检测与光学元件相关的强度数据由远心成像光学元件成像的特征（例如，502或504）。还公开了其他实施例。

2. 发明申请

WO2005114642A3 CROSS-REFERENCE TO RELATED APPLICATIONS 审中-公开
公开(公告)号：WO2005114642A3
公开(公告)日：2005-12-01
申请号：PCT/US2005/017375
申请日：2005-05-17
申请人： SILICON LIGHT MACHINES CORPORATION , ROXLO, Charles B , LEHOTY, David A , TRISNADI, Jahja I , CARLISLE, Clinton B
发明人： ROXLO, Charles B , LEHOTY, David A , TRISNADI, Jahja I , CARLISLE, Clinton B
IPC分类号： G09G5/08
摘要： One embodiment relates to an optical displacement sensor for sensing relative movement between a data input device and a surface (304) by determining displacement of optical features in a succession of images of the surface (304) . The sensor includes a plurality of linear comb arrays (LCAs) (502) arranged along an associated axis. Each LCA comprises a row of photosensistive elements parallel to the associated axis. Another embodiment relates to a method of sensing movement of a data input device across a surface (304). An intensity pattern of light reflected from an illuminated portion of the surface (304) is detected using a first plurality of linear comb arrays (LCAs) arranged along a first axis and a second plurality of LCAs arranged along a second axis not parallel to the first axis. Other embodiments are also described.

3. 发明申请

WO2005114696A2 OPTICAL POSITIONING DEVICE RESISTANT TO SPECKLE FADING 审中-公开
标题翻译：光学定位装置抵抗光斑渐变
公开(公告)号：WO2005114696A2
公开(公告)日：2005-12-01
申请号：PCT/US2005/017461
申请日：2005-05-18
申请人： SILICON LIGHT MACHINES CORPORATION , LEHOTY, David, A. , ROXLO, Charles B , TRISNADI, Jahja I , CARLISLE, Clinton B
发明人： LEHOTY, David, A. , ROXLO, Charles B , TRISNADI, Jahja I , CARLISLE, Clinton B
IPC分类号： H01J40/14
CPC分类号： G06F3/0317
摘要： One embodiment disclosed pertains to an optical positioning apparatus configured to be resistant to speckle fading. The apparatus includes at least a coherent light source (306) and a detector (302). The coherent light source (306) is configured to illuminate a surface with laser light. The detector (302) is configured to obtain a succession of data frames of the illuminated surface, and the detector (302) comprises N rows (for example, 1502 and 1504) each including a plurality of photosensitive elements. Another embodiment disclosed pertains to an optical positioning apparatus configured to be resistant to speckle fading using calculating and filtering circuitry. The calculating circuitry is configured to calculate velocity data from the intensity data. The filtering circuitry is configured to reduce effects from speckle fading in the velocity data. Other embodiments are also described.
摘要翻译：所公开的一个实施例涉及一种被配置为抵抗斑点褪色的光学定位装置。该装置至少包括相干光源（306）和检测器（302）。相干光源（306）被配置为用激光照射表面。检测器（302）被配置为获得照射表面的一系列数据帧，并且检测器（302）包括N行（例如，1502和1504），每行包括多个感光元件。所公开的另一实施例涉及一种光学定位装置，其被配置为使用计算和滤波电路来抵抗散斑衰落。计算电路被配置为从强度数据计算速度数据。滤波电路被配置为减少速度数据中斑点衰落的影响。还描述了其它实施例。

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