• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Advanced Biomedical and Clinical Diagnostic Systems IV; Progress in Biomedical Optics and Imaging; vol.7 no.3 >Wide-angle lens for miniature capsule endoscope
【24h】

Wide-angle lens for miniature capsule endoscope

机译：微型胶囊内窥镜的广角镜

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In recent years, using the capsule endoscope to inspect the pathological change of digestive system and intestine had a great break-through on the medical engineering. However, there are some problems needs to overcome. One is that, the field of view was not wide enough, and the other is that the image quality was not enough well. The drawbacks made medical professionals to examine digestive diseases unclearly and ambiguously. In order to solve these problems, the paper designed a novel miniature lenses which has a wide angle of field of view and a good quality of imaging. The lenses employed in the capsule endoscope consisted of a piece of plastic aspherical lens and a piece of glass lens and compacted in the 9.8mm (W) ~*9.8mm (L) ~*10.7mm (H) size. Taking the white LED light source and the 10 μm pixel size of 256*256 CMOS sensor under considerations, the field of view of the lenses could be achieved to 86 degrees, and the MTF to 37% at 501p/mm of space frequency. The experimental data proves that the design is consistent with the finished prototype.
机译：近年来，使用胶囊内窥镜检查消化系统和肠道的病理变化在医学工程上取得了重大突破。但是，有一些问题需要克服。一个是，视野不够宽广，另一个是图像质量不够好。缺点使医学专业人员不清楚和模棱两可地检查消化系统疾病。为了解决这些问题，本文设计了一种新颖的微型镜头，该镜头具有宽视角和良好的成像质量。胶囊内窥镜中使用的透镜由一块塑料非球面透镜和一块玻璃透镜组成，并压缩成9.8mm（W）〜* 9.8mm（L）〜* 10.7mm（H）的尺寸。考虑到白光LED光源和256 * 256 CMOS传感器的10μm像素大小，在501p / mm的空间频率下，透镜的视场可以达到86度，MTF可以达到37％。实验数据证明该设计与完成的原型是一致的。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号