Card-Type Image Sensor for Multimedia Application

根据昆虫复眼成像系统的提示，设计了一种新的光学处理系统。本文提出了一种新的成像方法，尝试用直径几十微米的微透镜阵列板叠加形成一幅图像，取代了传统的用一个光学透镜形成一幅图像的成像系统。首先，采用特殊的反应离子蚀刻方法制备石英透镜阵列，其中相同尺寸/特征的微凸透镜以二维方式排列。结果表明，在固定间距和旋转差较小的条件下，可以按要求建立新的成像系统。并发现“图像旋转90度”。利用光学透镜设计/分析仿真软件，对该成像系统进行了分析。采用几何光学近似法进行光线追踪。其次，计划明确该系统图像质量的局限性。还计划在该系统中结合ccd，设计厚度小于1mm的视频输入设备。

A new optical processing system was devised takimg a hint from an imaging system by compound eyes of an insect. Instead of the classic image formation system to form one image with one optical lens, a new approach was proposed and tried to form one image by superposing micro lens array plates of a few tens micron diameter.At first, the quartz lens arrays, where micro convex lenses of the same size/characteristic are arranged in 2 dimensions, are produced by special reactive ion etching. It is confirmed that a new image formation system can be built as desired by setting these two plates at a fixed spacing and at a small rotation difference. And it is found that "an image rotates by 90 degree". Using an optical lens design/analysis simulation software, this image formation system is analyzed. Ray tracing by geometrical optics approximation is also applied.Next it is planned to make it clear limitation of the image quality of this system. It is also planned to devise a video input device of thickness less than 1 mm by combining CCDs in this system.