查询词典 quadrangular prism

But the good Roof Design Series optical imaging and Porro series only, not better, but Roof prism of the more dense, relatively light weight.

不过设计的好的Roof系列光学成像只和Porro系列一样，也没有比较好，但是Roof的棱镜结构较为密实，重量比较轻。

Whether or series of Porro Roof Series, binoculars prism of this combination, its ultimate purpose is to do a series of light refraction, the final out of the light from the eyepiece for the formation of legislation is like.

不论是Porro系列或是Roof系列，望远镜的这一组合棱镜，其最终目的就是将光线做一连串的折射，让最后从目镜出去的光线形成为正立像。

I hope that once upon a time a manufacturer decides to pick up this design and produces a modern 8x50 Porro prism binocular, with a reasonable price tag (which could be around 700 Euro), and on a quality level of this old Zeiss.

我期望先前某厂家决定再启用这个设计生产现代化的8x50保罗镜，有一个合理价格（应该大约700欧元），并且质量水平和这个老Zeiss镜一样。

This is the rule of thumb for anybody who is looking for a second hand binocular with maximum performance: If it is a Porro, it should have been made after 1980 (availability of multi layer coating), if it is a roof prism, then not earlier than 1990 (phase-shift coating).

所以对二手镜子光学表现有要求的买家而言，这里有一条基本原则：要是买保罗镜，最好是1980年以后的，如果买屋脊镜，就别买1990年以前的。

Without any doubt, the Swarovski Habicht delivers the best optical performance of this competition. This is a high tech Porro prism binocular with almost perfect optics and accurate mechanics.

毫无疑问，施华洛世奇的Habicht提供了本测试最佳的光学表现，这是一个高科技保罗棱镜望远镜，拥有几乎完美的光学和精确的机械性能，它只有一个弱点：单薄的视场。

Since 1988, the phase-correction coating (also called P-coating) was implemented, which shifted the level of contrast to that of the better Porro prism binoculars. The present sample was made around that time and already contains the P-coating.

从1988年起，phase-correction 镀膜被应用，相对更好的保罗棱镜望远镜的镀膜，它拉近了等级，当前样品就是那时生产的并且使用了P镀膜。

A unique 946 nm and 473 nm single-frequency non-planar ring cavity constituted of a thermally bonded Porro prism and a corner cube is proposed .

提出并实现了由热键合直角棱镜与角锥棱镜构成的新型946 nm及473 nm单频非平面环形激光器。

Whoever is searching for a current line high end 8x50 will probably fail to find a decently priced Porro glass, but end up with a roof-prism design such as Leica's Ultravid or Swarovski's SLC and will have to pay a premium.

谁若在搜寻当前生产的高端8x50，将无法找到合适价格的保罗镜，只能找到屋脊镜如Leica's Ultravid或者Swarovski's SLC，并且要付出更多费用。

When Zeiss Jena in 1985 introduced a new high-end line of Porro Prism binoculars, which originally included the 8x50 Octarem and the 12x50 Dodecarem, they did something very smart: They returned back to the classical design with a long body shape, allowing for longer focal lengths and therefore relaxing the technical requirements inherent in the Nobilem Super without the need to sacrifice optical performance.

1985年Zeiss Jena生产了一款新的高端保罗望远镜，最初包括8x50 Octarem和12x50 Dodecarem，它们在下面事上做的很聪明：返回到了长身躯的传统设计，允许更长的焦距，于是放宽了Nobilem Super固有的技术要求，也不需要牺牲光学性能。

By thermally bonding the YAG crystal with 2 mm thick Nd∶YAG crystal,the Porro prism supplies multi-functions such as laser amplification,closuring the light path,polarization sensitivity to the 946 nm and so on.

直角棱镜由无掺杂的YAG晶体和2 mm厚的Nd∶YAG晶体热键合形成，可提供激光增益、光路闭合及对946 nm激光起偏等多种复合功能。角锥棱镜由熔融石英材料构成，在环形永磁铁作用下，提供法拉第旋转作用。

They have quite a lot of work to do.

他们有许多工作要做。

Let us give you a more elaborate example of this process.

让我们给你这个过程的更多的详细例子。