The third lens group includes a 3rd-group 1st meniscus lens having a concave surface on the image plane, a 3rd-group 1st compound lens formed by joining a 3rd-group 1st negative lens having opposite concave surfaces and a 3rd-group 1st positive lens having opposite convex surfaces, and a 3rd-group 2nd meniscus lens having a convex surface on the image plane side arranged in that order from the screen side toward the image plane side.

第三透鏡組包括一個在像平面?zhèn)染哂邪急砻娴牡?組第一凹凸透鏡一级片电影网站，一個由具有相對凹面的第3組第一負(fù)透鏡和一個具有相對凸面的第3組第一正透鏡結(jié)合的第3組第一組合透鏡，和一個在像平面?zhèn)染哂型贡砻娴牡?組第二凹凸透鏡国产免费黄色视频一区二区三区，它們以從屏幕側(cè)到像平面?zhèn)鹊捻樞虿贾谩?/p>

In the experiment,a He-Ne laser with waist of 0.6 mm is utilized to adjusting a plane-concave resonator with a concave mirror in a radius of 50 mm at measuring distance of 889 mm.

實驗使用束腰為0.6 mm的氦氖光最黄视频一区二区三区免费观看，其后加一優(yōu)化好的透鏡系統(tǒng)，在889 mm的距離下，對凹面鏡曲率半徑為50 mm的平凹腔進(jìn)行對準(zhǔn)欧美粗硬大。

Analyzes the performane of plane concave resonators with internal thermal lenses and gives out stability and unstability regions in terms of dioptric. Based on the stable and unstable resonators′ characteristics,a detailed analysis for output power of cw plane concave Nd:YAG laser is presented.

光泵Nd：YAG激光器的熱效應(yīng)會在YAG棒中引起軸向熱伸長和徑向折射率梯度50,60,70老熟妇视频，從而產(chǎn)生激光介質(zhì)的熱透鏡效應(yīng)，有關(guān)內(nèi)含熱透鏡的諧振腔的研究已有許多報道［1～2］免费观看黄网站色视频免费，但基本上都是研究諧振腔的熱穩(wěn)性欧美日韩精品视频一区在线看，對輸出功率特性的研究報道很少。

A plane with a flexible face that can plane concave or convex surfaces.

有可以刨凹面或凸面的曲面的刨子欧美自拍日韩极速视频直播。

Seed face plane, concave to sulcate.

種子表面平黄网站免费永久在线观看网址，凹陷到有槽。

It is linear relation between the gas discharge voltage and the single-pulse output energy both of the two laser cavity, when the voltage is 28kv the single-pulse output energy of the corner-cube cavity and the right angle cone cavity are 14.6J and 25.5J respectively, the same as the output of the plane concave cavity in the same condition.

兩種諧振腔激光器的單脈沖輸出能量與放電電壓均呈線性關(guān)系三级黄色美女网站，在放電電壓28kv時美女作爱免费观看视频，角隅腔和直角內(nèi)圓錐腔單脈沖輸出能量分別為14.6J和25.5J(來源：A0626BC論文網(wǎng)www.abclunwen.com)，和相同條件下的平凹腔輸出相當(dāng)男女日比视频大全。

The invention relates to a light pumping system for all-solid laser, particularly a light pumping system for disc type laser, comprising heat sink, laser crystal, optical fiber, plane reflector, a first concave reflector, a second concave reflector, and a third concave reflector, and adopting a structure that the plane reflector is between the optical fiber and the first concave reflector, to make the LD and laser cavity on the same side of the laser crystal, thus reducing the packaged size of the laser; the invention fixes the plane reflector on the heat sink to reduce the inclined incident angle of the pumped light beam, thus the pumped light can be fully absorbed, and the invention solves the problem of pumping efficiency and largely reduces the bulk of the laser, beneficial to the all curing of the product and ensuring the cooling requirement of the laser crystal.

本發(fā)明涉及全固體激光器的光泵浦系統(tǒng)日本欧美韩国精品视频，特別是一種盤式激光器的光泵浦系統(tǒng)。包括熱沉191绿色在线视频观看、激光晶體2国产91色综合九九免费、光纖3、平面反射鏡499精品国自产在线视频、第一凹面反射鏡5真实国产激情在线观看视频免费下载、第二凹面反射鏡6、第三凹面反射鏡7欧美真人啪啪猛烈动态图，本發(fā)明采用平面反射鏡位于光纖與第一凹面反射鏡之間的結(jié)構(gòu)久久中文字幕人妻丝袜，使LD和激光腔位于本發(fā)明激光晶體的同一側(cè)，從而減小了激光器的封裝尺寸禁止18岁进入的网站；本發(fā)明將平面反射鏡固定在熱沉上欧美α片在线高清视频观看，使泵浦光束斜入射角減小，泵浦光則能充分吸收日韩在线AⅤ，為此91av免费，本發(fā)明解決背景技術(shù)采用第一凹面反射鏡使泵浦光束斜入射角過大引起的像散，泵浦光斑變形引起泵浦效率降低問題20精品久久久久精品，使得本發(fā)明可選用大面積半導(dǎo)體制冷器操操操操操操操网，避免使用水冷，則激光器的體積大大減少天堂在线WWW中文无码射，有利于產(chǎn)品的全固化精品女同一区二区三区在线，保證了激光晶體的散熱要求。

The crystal defect was observed and analyzed. Room temperature Nd:NYW crystal samples sized 3x3x5mm and 5x5x5mm were LD pumped at 808nm plane-concave cavity and double-concave cavity laser systems respectively, 1060-1064nm has been demonstrated.

室溫下啪啪黄色视频免费看，分別用平一凹腔系統(tǒng)對尺寸為3×3×5mm的Nd：NYW激光晶體久久精品国内久精国品，用雙凹腔系統(tǒng)對尺寸為5×5×5mm的Nd：NYW的激光晶體進(jìn)行連續(xù)激光輸出實驗操bxx官网。

When the bottom plate side syndiospecific lower than a sizzling, drawing pressure ball left, paper will go on there which would in turn low-speed machines brace will receive the same fault because plate following fulcrun is the eccentric shaft, corrected, you can add the eccentric shaft, convex to reverse some of the panels to fan-shaped with a sizzling plane are equal to the maximum State, low-speed machines la along two concave iron support, you can set the concave iron spare, Planer to some, is equal to the thickness to brace the distance below the iron plate plane, the installation at a later time.

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Comprehensive experiments are carried out in a half-external cavity He-Ne laser and the "cat's eye" reflector cavity, plane-concave mirror cavity and concave-concave mirror cavity.

以功率穩(wěn)定性為參考指標(biāo)人人爱人人操人人看，做了一系列對比實驗來對比&貓眼&諧振腔He-Ne激光器和現(xiàn)有He-Ne激光器在失調(diào)特性女人一级A级免费视频、溫度漂移方面的性能。