概括
这项研究介绍了一种用于光学变焦的新型双腔电液晶镜头. 对介电材料的电 (EWOD) 控制液体接口,使可变焦距和高分辨率成像成为可能.
科学领域:
- 光学和光子学 在光学和光子学.
- 微流体学 微流体学
- 材料科学 材料科学 材料科学
背景情况:
- 电湿液体镜头提供可调节的光学特性.
- 实现广泛的焦距范围和高分辨率仍然是一个挑战.
研究的目的:
- 开发和表征一个双腔电液晶镜头,具有增强的变焦功能.
- 研究电湿和微流体学对液体界面形态学的联合影响.
主要方法:
- 制造具有5毫米光圈的双腔镜.
- 在介电材料上利用电湿 (EWOD) 诱导微流体流动.
- 包含一个固定环来控制液体-液体接口变形.
主要成果:
- 实现了 (-∞, -31 mm) [42 mm, +∞) 的焦距变化范围.
- 展示的对象空间分辨率为50.80 lp/mm,图像空间分辨率为37.63 lp/mm.
- 观察到约100毫秒的响应时间,应用于0-120 Vrms. 的电压.
结论:
- 双腔设计有效地通过受控的微流体操纵实现光学变焦.
- 制造的镜头在需要可调光学和高分辨率的应用中表现出有希望的性能.
相关概念视频
Imaging Biological Samples with Optical Microscopy
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...
Phase Contrast and Differential Interference Contrast Microscopy
Phase-Contrast Microscopes
In-phase-contrast microscopes, interference between light directly passing through a cell and light refracted by cellular components is used to create high-contrast, high-resolution images without staining. It is the oldest and simplest type of microscope that creates an image by altering the wavelengths of light rays passing through the specimen. Altered wavelength paths are created using an annular stop in the condenser. The annular stop produces a hollow cone of...
In-phase-contrast microscopes, interference between light directly passing through a cell and light refracted by cellular components is used to create high-contrast, high-resolution images without staining. It is the oldest and simplest type of microscope that creates an image by altering the wavelengths of light rays passing through the specimen. Altered wavelength paths are created using an annular stop in the condenser. The annular stop produces a hollow cone of...
Two-Dimensional Microscopy in Microbiology
Two-dimensional (2D) microscopy encompasses a range of optical techniques that capture images within a single focal plane, offering detailed representations of microscopic structures. These techniques are essential in biological and medical research, enabling the visualization of cellular and subcellular structures with different levels of contrast and specificity.There are several major types of 2D microscopy, each with strengths and applications.Bright-Field MicroscopyBright-field microscopy...


