A more integrated theory of design and analysis has been established for the sake of developing the condensinglens type large aperture Frensnel lens.
建立了一套较完整的大口径聚光镜型菲涅耳透镜设计和分析理论。
2
Objective To investigate the surgical method and clinical effect of surgery for primary retinal detachment under indirect ophthalmoscope with no hand-held condensinglens.
目的探讨无手持聚光透镜间接检眼镜下进行原发性(孔源性)视网膜脱离复位手术的方法及其效果。
3
This paper comparably tests different LED light source and optical convergence system, analyzes the condensing performance and designs the structure of TIR lens.