apo什么意思 apo 镜头

日期:2024-10-19 13:20:44 人气:5772

大家好今天来介绍apo什么意思(apo 镜头)的问题,以下是小编对此问题的归纳整理,来看看吧。

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apo地址是什么意思

  apo地址是什么意思?下面是我给大家整理的apo地址是什么意思,供大家参阅!

  apo地址是什么意思

  APO=Army Post Office

  FPO=Fleet Post Office

  说白了就是邮局在美国陆海空军的办事处,海外驻军视为国内地址,算是军人福利.

  美国邮寄地址的APO是什么意思

  FPO/APO也称为美国战地邮局,在国际贸易中,当物品送往国外的时候,会涉及FPO/APO的问题。在许多国家,特别是在非洲和中东地区的一些国家,不存在上门投送邮件的情况。在这些国家,历来都是租用邮政信箱来接收邮件。然而,对于在一般跨国贸易网站做对外贸易的卖家不需要租用信箱。由于一般卖家是以个人邮件小包发送为主,因此,不存在FPO/APO

  然而,FPO/APO作为其他国家要注意的问题,需要引起重视。而贸易中的fpo/apo分别表示为:

  fpo = Army Post Office军队邮局

  apo = Fleet Post Office舰队邮局

  fpo/apo locations是军队邮箱地址,是USPS和DOD (美国国防部)合作产生的驻军邮址。

  在美国,只有USPS (美国邮政局)才能邮寄PO Box或APO/FPO的地址,也就是说只有邮政方式的邮件才可以投寄APO/FPO的地址(包括EMS、HKEMS、CN大包裹、HK大包裹、HK小包、CN小包、SW小包)

  UPS、Fedex、DHL、TNT无法寄送PO Box或APO/FPO地址。

  fpo/apo可以寄送普通邮件(信件、明信片、印刷品)及小型包装物、国际邮包

  值得注意的是,为了便于驻扎在海外的军事人员发送和接收邮件海外邮件,美国邮政服务和国防部谈判达成一项协议,叫做海外军事邮件。

  战地邮局(APO/FPO)地址分为三个军事“州”和两个等同“城市”:

  一、三个军事“州”

  1.AA, 表示Armed Forces (the) Americas 美洲军事

  2.AE,,表示Armed Forces Europe欧洲军事

  3.AP,表示Armed Forces Pacific太平洋军事

  二、两个军事“城市”

  APO,表示Army Post Office 军队邮局

  FPO,表示Fleet Post Office舰队邮局

  根据这样的构建,一个典型的海外军事邮件地址看起来应该想下面这样:

  通过让所有海外军事邮件符合国内邮件处理计划,美国邮政可以轻松的使用其先进的邮件处理机器分类和处理这些海外军事邮件,就如处理普通邮件一样。

  Diplomatic Post Office (DPO) 外交邮政局

  Army/Air Force Post Office (APO) 陆军/空军邮局

  Fleet Post Office (FPO) 舰队邮政局

  apo地址的英语介绍

  What is an APO address or an FPO address?

  APO stands for "Army Post Office," and is associated with Army or Air Force installations.

  FPO stands for "Fleet Post Office," and is associated with Navy installations and ships.

  The official definition of APO/FPO mail is (according to the Military Postal Service Agency):

  APO/FPO Mail - domestic mail and international mail that bears a U.S. military delivery address or return address and that, in some stage of its transmission, is in the possession of the DOD. This is mail that is being sent to or received from military installations located outside the Continental United States (CONUS). This mail may be official or personal in nature. This mail is centralized at certain locations such as San Francisco and New York for transport overseas. When mail is received in the CONUS from these facilities, letter mail is normally received in sleeved half trays, flats are received in sleeved plastic flat tubs, and parcels are received in #1 sacks.

  ~

  Three Military "States":

  AA, which stands for Armed Forces (the) Americas

  AE, which stands for Armed Forces Europe

  AP, which stands for Armed Forces Pacific

  Two "City" equivalents:

  APO, which stands for Army Post Office

  FPO, which stands for Fleet Post Office

  ~

  By having all Overseas Military Mail conform to the domestic mailing addressing scheme, the USPS could easily sort and manage it using their sophisticated sorting and distribution machines, just like regular mail.

  But there is more to these constructs than addressing schemes. The Military State designators mean more than "phantom" states. They represent the USPS mail processing facilities that handle the mail traffic to and from each Military State. In an analogous form, they represent the neck part of an hourglass. Picture mail flowing into a "neck" location from all parts of the continental United States, then from this "neck" out to all the Military bases and U.S. Embassies in the region of the world represented by the specific Military State.

  These "neck" locations, the USPS mail processing facilities themselves, are located in cities that are conducive to getting mail to and from the overseas region of the respective Military State.

  These Military State/City pairs are:

  AA : Miami, FL

  AE : New York, NY

  AP : San Francisco. CA

  ~

  Since these cities already had ZIP codes assigned to them, it was decided to have the ZIP codes of the respective Military State be numerically close to the ZIP code of the city where the mail processing facility is located. This allowed the USPS automated sorting equipment to funnel the Military Mail to the proper city where the respective mail processing facility is located.

  Once the Military Mail arrives at the respective mail processing facility, it is further sorted by Postal Service Center, APO/FPO and ZIP code. After that, the USPS "hands it off" to their Military equivalent in a branch of the Armed Forces after transport via contract air carrier and delivery to the overseas APOs and FPOs. For APOs, either the Army or Air Force provides personnel. For FPOs, the Navy does the job.

  At each APO or FPO, there is an equivalent to "a-real-honest-to-goodness-Post Office" staffed by members of the respective branch of service. While the layout of each APO/FPO varies by location, suffice it to say they look and operate just like a "real" Post Office. In fact, they have to, since we are talking about U.S. Mail. Each APO/FPO address holder has a mail lock box in which their mail is slotted. Since parcels can't fit in these boxes, delivery or notification slips, just like "real" ones, are put in the boxes whenever a parcel arrives.

  ~

  Generic APO/FPO Restrictions

  Most APO/FPO addresses have the following general restrictions:

  Packages may not exceed 70 lbs. (Some zip codes have lower limits)

  Packages may not exceed 130 inches in combined length and girth. (This means if you have a package that is 100" in length and 40" when you measure around it, you cannot send the item)

  All packages must be sent via the U.S. Postal System. The post office also requires companies or individuals to hand deliver packages being sent to APO/FPO addresses. (This is one reason why many merchants won't ship to APO/FPO addresses.)

  Firearms, alcohol, perishable foodstuffs and certain hazardous items also are restricted. Each zip code has a more detailed list of the restrictions for certain types of products.

  

apo镜头是什么意思

  apo镜头是什么意思?下面是我给大家整理的apo镜头是什么意思,供大家参阅!

  apo镜头是什么意思

  APO,是英文Apochromatic的缩写,意为“复消色差的”。APO镜头即 复消色差镜头,是指能对多种色光(超过两种)消除色差的镜头。

  apo镜头简介

  长工作距离复消色差物镜即APO物镜有优秀的光学系统,这种物镜可在整个视场内提供平面的,无单色差(几乎无彩色色差)的图像,它适用于各种显微镜 ,可以和Pomeas的一系列变倍镜头组合成一种高性能的变焦镜头系统,是半导体产品检测,流式细胞技术或其他高效大倍率应用的理想选择。其先进的设计提供了非常高的分辨率和突出的对比度。其分辨率可从5微米到0.34微米。

  APO镜头特点

  1:复消色差光学设计;2: 可选长工作距离;3:超微分辨;4:齐焦距离95mm;5:无限远光学系统,管镜焦距200mm;6:物镜螺纹 M26X0.705.

  什么是APO镜头

  APO的意思是复消色差,通过超低色散镜片等减低色差。虽然目前很多厂家都生产APO镜头,但并APO不是一种标准,而是减低色散的一种称呼.

  白光通过镜片时,由于各种色光的折射率不同而分离,聚焦于不同点,消色差就是使得色光能重新弥合,聚焦在同一点。最初的消色差只能针对某两种色光进行,后来改进为可以对某三种色光,就称为复消色差。APO只是一种涵义,并非具体实物,为了实现APO(复消色差),可以采用很多种手段。

  其中最常见的减低色差方法就是应用低色散镜片,该玻璃材料具有超低色散系数,有助于减小色差,在现代摄影镜头中被广泛采用,特别是长焦镜头中。此外,佳能部分长焦L镜头还特别采用了萤石,具有反常色散系数,与正常色散的光学玻璃搭配使用,起到矫正色差的作用。此外,低色散的称呼还有ED、UD、SLD等,不同厂家的叫法不同,镜片材料和技术可能不同,但凡是加入低色散镜片的镜头,都是以减消色散为目的,都可以称为APO镜头.

  早在1800年,人们就知道了天然萤石具有消除色差的作用,但天然萤石结晶太小、太脆、太贵。直到二十世纪六十年代末,佳能才掌握了生产大片人造萤石镜片的技术,并于1969年大量推出两只萤石镜头:FL-F300mmF5.6和FL-F500mmF5.6。1973年,佳能推出了举世震惊的FL300mmF2.8萤石镜头。佳能称:萤石镜片配合其他光学玻璃可以有效地消除一切色像差。见那个的另一种低色散镜片称为“UD”或“超级UD”,是由光学玻璃混以特殊氧化物制成,其功效为:2片UD = 1片超级UD = 1片萤石。

  尼康和宾的的低色散镜片称为“ED”镜片。尼康称:氟化钙镜片会使镜头的折射率产生偏差而严重影响对焦,而尼康的ED镜片拥有超凡锐利度及特低的色差,而且全无氟化钙玻璃的坏处。注:尼康称为“氟化钙”的材料就是“萤石”(CaF2)。

  腾龙的低色散镜片称为“LD”镜片及“LD-混合型非球面镜片”,值得一提的是“LD-混合型非球面镜片”应该是腾龙的首创。腾龙称:研究出一种经特别处理的树脂非球面表层,粘着在已成型的LD玻璃镜片上,从而保证了两片镜片的完美结合。目前,腾龙28-105mmF2.8和AF28-300mmF3.5-6.3这两只镜头均采用了这种镜片。

  适马的低色散镜片称为“SLD”超低色散镜片及“ELD”特级低色散镜片。目前,其“ELD”特级低色散镜片只是用于最新的APO 500mmF4.5EX HSM、APO 300mmF2.8EX HSM、APO 800mmF5.6EX HSM三支镜头。

  美能达的低色散镜片称为“AD”镜片;图丽的低色散镜片称为“SD”镜片;玛米亚的低色散镜片称为“ULD”镜片。

  低色散镜片在镜组中的构成片数及镜片大小也是因镜头的设计取向而定,一般而言,它在一个镜组中镜片越大越好、越多越好。但由于低色散镜片的制造成本要高于普通镜片,对于同一厂家的产品而言则是一分钱一分货。至于“性价比”的平衡,则要看你的钱包了。

  

镜头apo什么意思

APO是采用低色散玻璃的镜头的标志。长短焦距口可以使用。以前只用在长焦镜头上。色散是光线通过镜头时产生的各色光线分离现象,就像三棱镜分离的七色光谱。

对讲机APO功能是什么意思

AP0指一种网络接入技术,是通过公网对讲机要进入运营商网络时必须配置的一个参数,它决定了对讲机通过哪种接入方式来访问网络。
对讲机是一种很方便的移动通讯设备,而且它不需要网络就能与对方正常通话,使用过程中不会产生话费,现在一些酒店,商场以及其他人员稳定并需要经常进行通话的地方都会配备对讲机。
现的对讲机以数字对讲机为主,它的面板上有多个按键,这些按键有不同的功能,想正常使用对讲机就要对这些按键的功能有全面的了解。

感冒药上有apo是什么意思

apolipoprotein 载脂蛋白;apoprotein 阿朴蛋白;apochromatic 高度消色的

以上就是小编对于apo什么意思 apo 镜头问题和相关问题的解答了,希望对你有用

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