第3透镜组（G3），从最靠 像侧起依次至少具有负的弯月形的透镜（L33）、和正透镜（L32）。
The third lens group (G3) comprises at least a negative meniscus lens (L33) and a positive lens (L32) sequentially from a side closest to images.
一些象帕洛·阿尔的SolFocus这样的初创公司正尝试用透镜和反光镜将日光聚集成高效率的太阳能电池来减低成本。
By using lenses and mirrors to concentrate sunlight onto high-efficiency solar cells, start-ups such as SolFocus, in Palo Alto, are trying to reduce the cost per watt of solar systems.
提出了一种测定正、负透镜折射率的简单方法。
In this paper, a simple method for measure the refractive index of the thin lenses is presented.
采用“负-正-正”型式的反远距像方远心光路镜头结构，仅有三块非球面锗透镜构成。
The optical system only consists of three germanium lenses with a "negative-positive-positive" reversed telephoto telecentric structure in the image space.
本文从理论上分析了因孔洞而产生的正 透镜或负透镜效应并给出了归一化透过率的表达式。
We analyze the positive and negative lens effect caused by the hole theoretically and give the expression of normalized transmittance in this condition.
本文从理论上分析了因孔洞而产生的正 透镜或负透镜效应并给出了归一化透过率的表达式。
We analyze the positive and negative lens effect caused by the hole theoretically and give the expression of normalized transmittance in this condition.
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