相关实验视频
Updated: Jun 14, 2025

11:09
Clarifying and Imaging Candida albicans Biofilms
Published on: March 6, 2020
11.5K
紧的色彩同焦镜头,具有很大的测量范围
Ning He1,2, Huiqin Hu1,2, Zhiying Cui3
1Ningbo Research Institute, Zhejiang University, Ningbo 315100, China.
Sensors (Basel, Switzerland)
|August 29, 2024
概括
一个新的紧散射镜头镜头增强了光谱对焦传感器,用于精确的位移测量. 这一创新扩大了测量范围和精度,从而产生了更便携,更具成本效益的传感器.
科学领域:
- 光学工程是指光学工程.
- 计量学 计量学 计量学
- 传感器技术 传感器技术
背景情况:
- 频谱对焦传感器使用分散式镜头来进行高分辨率的纵向位移测量.
- 现有的散射镜头在散射范围,成本和精度方面存在局限性.
研究的目的:
- 设计一个紧的,长轴分散镜头,以提高光谱对焦传感器的性能.
- 扩大测量范围,提高光谱共聚焦传感器的精度.
主要方法:
- 设计了一个紧的客观镜头,有六个元素,包括固的双重镜头.
- 实现了系统长度为58mm,工作距离为46±6mm,以及12mm的分散范围 (450-656nm).
- 将镜头集成到光谱对焦测量系统中,用于性能评估.
主要成果:
- 设计的镜头提供了0.22的对象侧数值光圈 (NA) 和0.198-0.24.24的图像侧NA.
- 光谱对焦系统显示分辨率为0.15μm.
- 记录了±0.7μm的最大线性误差,表明了高精度测量能力.
结论:
- 新型散射镜头设计显著提高了光谱对焦传感器的精度和范围.
- 紧且具有成本效益的设计促进了先进的便携式传感器的开发.
- 这种进步支持更广泛的应用,需要精确的位移计量学.
相关概念视频
Confocal Fluorescence Microscopy
13.1K
Confocal microscopy is an advanced microscopic technique. The prime advantage of the confocal microscope over other microscopy techniques is its ability to block the out-of-focus light from the illuminated samples using pinholes. It is widely used with fluorescence optics to obtain high-resolution, sharp contrast images. Unlike optical microscopes, confocal microscopes use a focused beam of light laser to scan the entire sample surface at different z-planes. These microscopes are, therefore,...
13.1K
Imaging Biological Samples with Optical Microscopy
4.6K
Optical microscopy uses optic principles to provide detailed images of samples. Antonie van Leeuwenhoek designed the first compound optical microscope in the 17th century to visualize blood cells, bacteria, and yeast cells. In 1830, Joseph Jackson Lister created an essentially modern light microscope. The 20th century saw the development of microscopes with enhanced magnification and resolution.
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...
4.6K

