The rule of adaxial image formation is studied,of the transmission light and reflected light through the two optical surfaces L_1 and L_2 of the biconvex lens.
研究了经双凸透镜两个光具面 L_1和 L_2的透射光线和反射光线的近轴成像规律,以此说明其像群的形成。
Based on its system characteristics and technical specification,the design of the optical system with a concavo-convex doublet lens structure has been implemented.
针对给出的系统特点和技术要求,采用简单的凹凸双透镜的结构完成光学系统的设计。
Shaped like a biconvex lens.
双凸透镜状的形状像双凸透镜的
A planoconvex lens used to concentrate light.
凸透镜用来聚光的凸镜
Just as a double convex lens enlarges, so a double concave lens reduces.
正象双凸透镜可以放大那样，双凹透镜也可以缩
On MRI, the lesion appeared double convex lens or egg in shape in coronal section and round or arrow head like in shape in sagittal section.
MRI冠状位像呈“双凸透镜”形、卵圆形 ,矢状位像呈卵圆形、“箭头样”表现 ;
meniscus (shaped) lens
凹凸透镜，弯月形透镜
Just as a double convex lens enlarges, so a double concave lens reduces
正象双凸透镜可以放大那样，双凹透镜也可以缩小。
large convex lens produces image that is viewed through the eyepiece.
通过目镜观察物体图像的大的凸透镜。
Having greater curvature on the convex side than on the concave side.Used of a lens.
凸凹的凸面比凹面曲度更大的。用来指透镜
Having greater curvature on the concave side than on the convex side.Used of a lens.
凹凸的凹面曲率大于凸面曲率的。用于指透镜
a single convex lens is used to produce an enlarged image.
能够产生放大图像的单个凸透镜。
The Study of Measuring Convex lens Focal Distance with CCD;
用CCD测量凸透镜焦距实验的研究
air-spaced doublet
双不胶透镜; 双分离透镜; 双分透镜; 空气隙双合透镜; 分离式双透镜
A mirror, lens, or combination of lenses used to gather light and direct it upon an object or through a projection lens.
聚光器用于聚光并将光引向某物体或通过一凸透镜组的镜子、透镜或透镜组
A convex lens is used to concentrate rays of light.
凸透镜用于聚集光线。
embossed film
(带半圆凸透镜层的彩色电视录象用)浮雕影片
Wearing lower degree convex lens can reduce incidence rate of myopia in primary school students.
配戴低度凸透镜可降低小学生近视的发生率。
PLANO-CONVEX SELFOC LENSES FOR COUPLING LASER DIODE TO FIBER
耦合半导体光源和光纤的平凸自聚焦透镜
Numerical Study of Convex Lens Transform Property for Broadband Laser Beam;
凸透镜对宽带激光束变换特性的数值研究