公开(公告)号：US20010019664A1

公开(公告)日：2001-09-06

申请号：US09780368

申请日：2001-02-12

Inventor： Maurizio Pilu

IPC: G03B017/00

CPC classification number: H04N1/19594 ,  G03B13/02 ,  H04N1/195 ,  H04N5/2256 ,  H04N2201/043 ,  H04N2201/0436 ,  H04N2201/04717 ,  H04N2201/04743 ,  H04N2201/04751

Abstract: The present invention relates to a camera (1) that projects a pattern of visible light (28) onto an object such as a document (10) to be photographed to indicate to a photographer the area of the object within view of the camera. The camera comprising image capture means (18), a lens (2) arranged to image the document (10) in an object plane onto the image capture means (18), an image framing projector (2,20,22) operable to project visible optical radiation (24,26) onto the object plane to indicate to a user of the camera (1) the bounds (28) of the document (10) imaged onto the image capture means (18), and a camera attitude sensor system (9,15) for sensing the attitude of the camera (1). The image framing projector (2,20,22) is operable in response to the attitude sensor system (9,15) to project the optical radiation (24,26) onto the object plane only when the attitude sensor system (9,15) senses that the camera (1) is oriented so that the optical radiation (24,26) will be projected downwards.

Abstract translation: 本发明涉及一种照相机（1），其将可见光（28）的图案投射到诸如要被拍摄的文件（10）的物体上，以向摄影者指示相机内的物体的区域。 该照相机包括图像捕获装置（18），布置成将物体平面中的文件（10）成像到图像捕获装置（18）上的透镜（2），可操作以投影到图像捕获装置 可见光辐射（24,26）到对象平面上，以向照相机（1）的用户指示成像到图像捕获装置（18）上的文档（10）的边界（28），以及照相机姿态传感器系统 （9,15），用于感测照相机（1）的姿态。 只有当姿态传感器系统（9,15）被安置时，图像框架投影仪（2,20,22）可响应于姿态传感器系统（9,15）而可操作以将光学辐射（24,26）投影到物体平面上， 感测到相机（1）被定向成使得光学辐射（24,26）将向下突出。