Card-Type Image Sensor for Multimedia Application

用于多媒体应用的卡片式图像传感器

• 批准号: 07650404
• 负责人: MIKAMI Osamu
• 金额: $ 1.34万
• 依托单位: Tokai University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07650404/
• 关键词: Micro-lens; Image Formation; Visual Sensor; Moire; Compound Eye

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.

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。与传统的用一个光学透镜形成一个图像的成像系统不同，人们提出了一种新的方法，并尝试通过叠加直径几十微米的微透镜阵列板来形成一个图像。相同尺寸/特性的凸透镜二维排列，通过特殊的反应离子蚀刻生产。已证实，通过将这两块板设置为固定间距和较小的旋转差，可以根据需要构建新的图像形成系统。发现“图像旋转了90度”。使用光学透镜设计/分析模拟软件对该图像形成系统进行分析。还应用了几何光学近似的光线追踪。下一步计划明确该系统图像质量的局限性。还计划通过在该系统中组合CCD来设计厚度小于1毫米的视频输入设备。