公开(公告)号：US5608833A

公开(公告)日：1997-03-04

申请号：US490917

申请日：1995-07-20

申请人： Anson Y. G. Au ,  Shin-Tson Wu

发明人： Anson Y. G. Au ,  Shin-Tson Wu

IPC分类号： G02B6/04 ,  G02B6/08 ,  G02F1/135 ,  H04N5/74 ,  G02B6/06 ,  G02F1/13

CPC分类号： H04N5/7441 ,  G02B6/04 ,  G02B6/08 ,  G02F1/135

摘要： A focal-plane detector imaging system that can tolerate higher intensity optical beams than prior systems, without a reduction in the system's field-of-view, comprises an imaging lens, a fiber optic array positioned at the image plane of the imaging lens and an image detector positioned at the output end of the fiber optic array. The optical fibers that make up the fiber array have core diameters that are larger than the focal spot of an incoming optical beam. In operation, the fiber array transfers the imaged scene to the image detector at its output end. The focused optical beam is also transferred to the image detector at the array's output end, but its diameter is enlarged due to its angular divergence. In a preferred embodiment, the f-number of the imaging lens, diameter of the fiber cores, and the lengths of the fibers in the array are designed so that, as the power of an incoming optical beam increases, the optical damage threshold of the fiber array is reached before that of the image detector. An LCLV imaging system that incorporates the present invention is also provided.

摘要翻译： 可以容忍比现有系统更高强度光束的焦平面检测器成像系统，而不减少系统的视野，包括成像透镜，位于成像透镜的像平面处的光纤阵列和 图像检测器位于光纤阵列的输出端。 构成光纤阵列的光纤的芯径大于入射光束的焦点。 在操作中，光纤阵列在其输出端将成像的场景传送到图像检测器。 聚焦的光束也在阵列的输出端转移到图像检测器，但由于其角度发散，其直径被扩大。 在优选实施例中，成像透镜的f数，光纤芯的直径和阵列中的光纤的长度被设计成使得当输入光束的功率增加时，光学损伤阈值 光纤阵列到达图像检测器之前。 还提供了包含本发明的LCLV成像系统。