标题:
激光投影显微仪设计Design of Laser Micro-Projector
作者:
任航, 李战涛, 赵尧, 贺小平, 张伟, 武志超
关键字:
激光应用, 微生物放大成像, 激光投影, 水滴Laser Technique, Microbial Amplification, Laser Projection, Drops of Water
期刊名称:
《Instrumentation and Equipments》, Vol.3 No.4, 2015-12-16
摘要:
为了定性的检验民用水资源的质量，本文研究了一种方便、快捷的激光投影显微仪。根据激光的准直、单色的特性，利用投影显示技术的原理，设计了光源、给水系统及相关机械结构，完成了激光投影显微仪的设计。实验研究了不同波长、功率、距离以及不同水嘴形状对投影显微效果的影响，结果表明当激光的功率为5 mW，水滴与光源最佳距离约为100 mm，光源与接收屏最佳距离约为800 mm时，可直观的显示水滴中微生物的数量与游动状态，为进一步研究快速检验民用水资源的质量奠定了基础。
To qualitatively test the civil water resources, we proposed a convenient way to realize a Laser Projection Microscope in this letter. Through the virtues of laser’s collimation, coherence and homochromatism, we built the light source, water supply and relevant mechanisms of the microscope design, which were mainly based on the Laser Display Technology (LDT). The experiment took the wavelength, laser power, distance and shape of faucet as variables, and thus investigated how they could modify the micro-image. The result showed that an ideal effect, which could visualize the details (e.g. numbers and motions, etc.) of microorganism in a droplet, appeared at 5 mW of laser power. Under such a condition, the optimal distance between droplet and light source is 100 mm approximately, while the optimal distance between light source and receiving screen is about 800 mm. Once gaining the states of the microbe in water, this design may be able to build a basis for the quick test of civil water.