摘要
本文针对生物显微镜对于自动调焦的要求,通过光学仿真和实验验证了液体镜头技术在生物医学显微镜自动调焦方面的应用。首先基于液体镜头的分类介绍了市场上具有代表性的Varioptics和Optotune lens公司的液体镜头产品的原理和特点,通过对比这两种液体透镜的特点,选择Optotune公司的液体镜头作为显微镜自动调焦装置。其次,本文根据液体镜头的光学参数,将其集成到现有的显微镜系统中,使用Zemax软件模拟了系统的变焦过程,并仿真了系统的光学性能。最后对Optotune液体镜头在生物显微镜上的调焦功能进行了实验验证,并获取了系统在不同焦距的图像。实验结果表明,液体透镜可以使系统的景深扩展1 mm以上,并且保持了良好的成像质量。基于液体镜头技术的显微镜自动调焦技术具有结构紧凑,低成本,快速调焦的特点,同时也能满足较高的成像质量。
With the development of microscopic imaging technology, the autofocus method has been adopted more widely. An innovative autofocus solution is presented based on liquid lens used in microscope imaging system through optical simulation and experiment. Firstly, two commercialized liquid lens are discussed on its principle and application, and Optotune lens was chosen as the autofocus device for microscopic imaging system. Secondly, the liquid lens is integrated into the system design and the optical performances are simulated. Finally, the experiment is carried out in order to evaluate the functionality and performance of the integrated system. Experiment results show that the depth of field of the system can be extended to 1mm while maintain good image quality. The autofocus technology based on liquid lens has the advantage of compact design, fast focusing, and low cost without compromising its optical performance.
出处
《光电工程》
CAS
CSCD
北大核心
2015年第10期37-42,共6页
Opto-Electronic Engineering
