公开(公告)号：US06891148B1

公开(公告)日：2005-05-10

申请号：US10082413

申请日：2002-02-25

申请人： Jorge E. Rivera ,  Robert C. Youngquist ,  Robert B. Cox ,  William D. Haskell ,  Charles G. Stevenson

发明人： Jorge E. Rivera ,  Robert C. Youngquist ,  Robert B. Cox ,  William D. Haskell ,  Charles G. Stevenson

IPC分类号： G01C11/00 ,  G03B17/18 ,  G06M7/00 ,  G01C3/00

CPC分类号： G03B17/18 ,  G01C11/00

摘要： A scaling device projects a known optical pattern into the field of view of a camera, which can be employed as a reference scale in a resulting photograph of a remote object, for example. The device comprises an optical beam projector that projects two or more spaced, parallel optical beams onto a surface of a remotely located object to be photographed. The resulting beam spots or lines on the object are spaced from one another by a known, predetermined distance. As a result, the size of other objects or features in the photograph can be determined through comparison of their size to the known distance between the beam spots. Preferably, the device is a small, battery-powered device that can be attached to a camera and employs one or more laser light sources and associated optics to generate the parallel light beams. In a first embodiment of the invention, a single laser light source is employed, but multiple parallel beams are generated thereby through use of beam splitting optics. In another embodiment, multiple individual laser light sources are employed that are mounted in the device parallel to one another to generate the multiple parallel beams.

摘要翻译： 缩放装置将已知的光学图案投射到相机的视野中，例如，其可以用作远程对象的所得照片中的参考尺度。 该装置包括光束投影仪，其将两个或更多个间隔开的平行光束投影到待拍摄的位于远处的物体的表面上。 所得到的物体上的光束点或线彼此间隔已知的预定距离。 结果，照片中的其他物体或特征的尺寸可以通过将其尺寸与束斑之间的已知距离进行比较来确定。 优选地，该装置是小型的电池供电的装置，其可以附接到相机并且采用一个或多个激光光源和相关联的光学器件来产生平行光束。 在本发明的第一实施例中，使用单个激光光源，但是通过使用分束光学器件产生多个平行光束。 在另一个实施例中，采用多个单独的激光光源，它们彼此平行地安装在装置中以产生多个平行光束。