Artist Luke Jerram has created a wedding ring featuring a built-in lens and a transparent slide of the creator and his bride (see photo).
一位名叫卢克·杰拉姆的艺术家日前创造出一枚可以"储存记忆"的结婚戒指。 这枚戒指内置有镜头和透明幻灯片，即杰拉姆和他新婚妻子的照片(见图)。
A push button extends into the end ring and has a lens cap.
一个按钮伸进该端环，并具有一个透镜盖。
In this paper, the techniques for lens fixing are analysed. A technique for lens fixing by adhesion is proposed to substitute the traditional methods by rimming and gland ring.
本文对透镜固定技术作了分析，提出了以透镜粘接固定法代替传统的包边法和压圈固定法。
As a classical experiment, Newton ring experiment is usually used in measuring the radius of curvature of a lens.
牛顿环实验是大学物理实验中的一个基本实验，目前的实验只是用于测透镜曲率半径。
With the structure, the focusing ring can be quickly clamped on the optical mode lens; and assembly and disassembly are convenient and positioning is accurate.
由于本实用新型采用了上述结构，调焦环可快速地卡装在光模镜头上，拆装方便、定位准确。
In interference experiments with Newton's ring, considered only is the interference of the air film formed between the convex lens and the plain glass.
普通物理实验中，牛顿环干涉实验只考虑在凸透镜与平面玻璃之间形成空气薄膜下的干涉现象。
If source, lens and observer are exactly aligned, the result is a luminous ring that appears to surround the lens.
如果光源、透镜和观测者的位置合适，观测者就能够看见一个环绕在透镜周围的发光圆环。
The thermal influences on its basic properties are discussed in detail. And the insensitive condition of the 4-mirror ring resonator to thermal thin lens is given.
详细讨论了热效应对谐振腔基本特性的影响，给出了四镜环形腔的热不灵敏条件。
The thermal influences on its basic properties are discussed in detail. And the insensitive condition of the 4-mirror ring resonator to thermal thin lens is given.
详细讨论了热效应对谐振腔基本特性的影响，给出了四镜环形腔的热不灵敏条件。
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