开发一种基于玻璃的成像幻影,以模拟人类组织的光学特性
Mingze Yang1,2, Yunle Wei2,3, Philipp Reineck4
1School of Biomedicine, The University of Adelaide, Adelaide, SA, Australia.
Biomedical optics express
|January 15, 2024
概括
研究人员使用一种新的玻璃材料开发出一种稳定,可重复的光学成像幻影. 这种玻璃模仿人体组织特性,提供可控的吸收和散射,以改善光学成像系统评估.
科学领域:
- 生物医学光学 生物医学光学
- 材料科学 材料科学 材料科学
背景情况:
- 稳定和可重复的光学成像幻象对于评估光学成像系统至关重要.
- 当前的幻影材料可能缺乏长期稳定性或精确的光学属性控制.
研究的目的:
- 证明使用玻璃作为制造稳定,可再生组织模仿光学成像幻影的替代材料.
- 建立一种方法来控制玻璃矩阵内的光学吸收和散射特性.
主要方法:
- 制造了一种用离子合的玻璃矩阵,以模拟血红蛋白吸收.
- 通过在高温下受控结晶的诱导散射特性,代表人体组织.
- 开发的玻璃幻影的特点是光学同质性,稳定性和可重复性.
主要成果:
- 添加玻璃成功模仿了血红蛋白的吸收特性.
- 控制的结晶产生了具有组织代表性的散射水平的玻璃.
- 制造的玻璃幻影表现出优异的光学均性,长期稳定性和可重复性.
结论:
- 玻璃是一种可行的和有利的材料,用于创建模仿组织的光学成像幻影.
- 这种新的玻璃幻影可以精确控制光学特性,从而提高对光学成像系统的评估.
- 开发的幻影材料确保稳定性和可重复性,可用于可靠的系统校准和验证.
相关概念视频
01:18Imaging 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...
01:16Focusing of Light in the Eye
Light rays enter the eye through the cornea, a transparent dome-shaped tissue that is the eye's outermost layer. The cornea bends or refracts, light rays traveling to the pupil. The shape of the cornea determines how much of the light is bent and whether the image will be focused correctly on the retina at the back of the eye. Once the light has passed through both refraction layers, it converges into a single focal point onto a small area. This is where photoreceptors start transforming...