condensing lens

基本解释

Objective To investigate the surgical method and clinical effect of surgery for primary retinal detachment under indirect ophthalmoscope with no hand-held condensing lens.
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。
A central axis is set at the loophole in the center of the circular-arc condensing lens and the bottom of each condensing lens is connected to an end of the flange by a plurality of link bars;
在圆弧形状的聚光镜片的中心环孔处设置中心轴，数个连接杆将每个聚光镜片的底部与法兰盘的一端连接；
The Fresnel lens collector has much notable feature with ultra-thin, low cost, high condensing rate and easy-to-batch production. Also it can improve the distribution of light intensity heterogeneity.
本文制作的菲涅耳透镜聚光器具有超薄、成本低、聚光倍率高以及易于批量化生产等显著特点。