Collimating ability limitation of meniscus lenses in collimating laser diodes;
凹凸透镜准直半导体激光器的极限
meniscus (shaped) lens
凹凸透镜，弯月形透镜
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 concave lens [mirror]
凹透镜 [凹面镜]
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
A New Method to Measure Optics Parameter of Plano-convex Lens and Plane-concave Lens
一种测定平凸、平凹透镜光学参量的新方法
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。
A planoconvex lens used to concentrate light.
凸透镜用来聚光的凸镜
Shaped like a biconvex lens.
双凸透镜状的形状像双凸透镜的
A convex lens is used to concentrate rays of light.
凸透镜用于聚集光线。
Disappearing and Returning: To Commemorate the Great Author of Zhou Wen from a Historical Perspective;
失踪与回归——历史凹凸镜下的作家周文
large concave mirror produces image that is magnified by the eyepiece.
由目镜产生放大图像的大的凹透镜。
aberration of the concave mirror is reduced by a meniscus lens.
用半月板镜头减少凹透镜的过失。
Light reflected from the surface of the mirror, instead of passing through a curved glass lens.
光线受镜面的反射，而不是穿过凹凸的玻璃镜头。
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。
Convex on one side and concave on the other.
凸凹的一面凸一面凹的
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。
He focused the sun's rays on a paper with a burning-glass.
他用一面凸透镜把阳光聚焦在纸上。