A new method of measuring the monochrome focal length of lens is given from the single slit diffraction principle.
根据单狭缝衍射原理，提出了一种测量透镜单色焦距的新方法。
2
Using a photon counting apparatus as a device to measure light intensity, wave particle dualism of light is demonstrated by measuring photon distribution of double slit diffraction.
用光子计数仪作光强检测装置，通过测量衍射后的光子计数的空间分布来演示光的波粒二象性。
3
Methods 39 cases (75 eyes) of ocular hypertension were investigated. Theexaminations included CCT, IOP and visual field measuring, gonioscopy, slit-lamp and fundus checking up.