What is the world of weak color blindness?

Eating chafing pot with friends can not see the color to judge the meat cooked no, love the gray wool cap by friends remind just know it is green, and boyfriend is the same forever can not distinguish the mouth red number of the immediate hot.So, is there a cure for color blindness?

You'll Be Amazed How People With Color Blindness See The World (57 Pics) | Bored Panda

Worldwide, about 300 million people have color vision defects, commonly known as color blindness or weakness. Most of them have inherited color blindness, and a few have it from diseases such as glaucoma or damage to the optic nerve or brain. For most people with color vision deficits, the color of the world is different from everyone else’s from the moment they first open their eyes.
Science writer Frank Swain is a color vision deficient person who has trouble recognizing green, a condition known as “greenness weakness” or “type-2 weakness.” His color vision deficit isn’t serious, but it can sometimes lead to embarrassing situations: He often mixes up crayons of certain colors and has trouble telling if meat is cooked by color. Another time, he bought a “gray” shirt, but a friend told him it was light green.

People with abnormal color vision will also face some obstacles when choosing a career. Some occupations related to fine arts, medicine, chemical engineering and electrical engineering have high demand for color discrimination ability, and color blindness or color weakness should not be engaged in these occupations. In some countries, passing a colour vision test is required to qualify as an airline pilot, air traffic controller, police officer, firefighter or train driver.
Swain never wanted to be a pilot or a policeman, but he wanted to know what colors he was missing out on, and luckily, a magical pair of glasses could do the trick.

What causes of color vision defects

Humans are able to see different colors because of cones in the retina. There are three types of human cones, each of which responds to specific wavelengths of visible light: L-type cells absorb long wavelengths (mostly red), M-type cells absorb medium wavelengths (mostly green), and S-type cells absorb short wavelengths (mostly blue). The brain combines signals from all three types of cones to help us see the colorful world. Most people, known as trichromats, have all three types of cones and related nerves working normally. But many people also have abnormal color vision, with one in 12 men and one in 200 women having color vision defects.
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Humans are able to see different colors because of cones in the retina. There are three types of human cones, each of which responds to specific wavelengths of visible light: L-type cells absorb long wavelengths (mostly red), M-type cells absorb medium wavelengths (mostly green), and S-type cells absorb short wavelengths (mostly blue). The brain combines signals from all three types of cones to help us see the colorful world. Most people, known as trichromats, have all three types of cones and related nerves working normally. But many people also have abnormal color vision, with one in 12 men and one in 200 women having color vision defects.

There are many types of color vision defects. One of the most serious is “total color blindness”. It is a rare condition in which sufferers are unable to discern any colour but only light and see the world as if it were in a black and white film. Also known as dichromatic color blindness, which is caused by the loss of a certain type of cone, includes red color blindness (the inability to see red and the tendency to see red as grey), green color blindness and blue color blindness. The famous chemist Dalton was a patient of red color blindness. He first formally described the symptoms of red-green color blindness in 1794, and put forward the concept of “color blindness”.

Most people with color vision defects can see a variety of colors, but because a certain type of cone doesn’t work properly, they don’t see the colors that people with normal color vision see. This condition is called “chromaticity,” and Swain is one of them. Many people don’t know they have color deficiency when they are young, because they can usually distinguish between different colors in daily life. It is not until a physical examination that they find that they can’t distinguish colors very well.

We often see a disc pattern composed of small colored dots in the physical examination. This is the color blindness test map of Ishihara. Ishihara test is a commonly used method to detect color vision disorder, but it is not very reliable. Experts said that even if color vision is normal, 2,096 people cannot fully recognize the full set of Ishihara maps, and some people with color vision defects are able to pass the test.

An optical expert at University College London has developed a more advanced color-vision examination system that can more accurately determine whether a subject has colour vision defects and assess the severity of the defects. The researchers found that some people who had already passed the Ishihara test would not pass the new system. This is not only because the Ishihara test is inaccurate, but also because some people pass it by cheating. The most common method of cheating is memorizing a full set of test patterns and “recognizing” images during a physical exam based on the pattern of dots, rather than color. Others wear colored contact lenses to temporarily  correct defective color vision. These lenses often cause some damage to their eyes, but there are always those who try to pass the test and get the job they want.

Color vision correction glasses

Although colored lenses are sometimes used to cheat, they can be an effective tool for correcting color vision. It was discovered more than a century ago that color filters make some colors look brighter. Looking through a bright pink lens, for example, you can see that red becomes brighter, but green almost turns black.

Pin on Color blind

Most people with color vision defects have trouble distinguishing between red and green because red and green cones absorb more overlapping wavelengths, and when one type of cell is out of whit, the brain may confuse the signals from the other. Many companies offer colored lenses that increase the difference between red and green tones, allowing red-green colorblind or color impaired people to see the difference between green and red. But such lenses only partially increase the absorption of one color (such as red), distorting others and greatly affecting the user’s perception of true color.

A few years ago, an American company developed a new kind of color vision correction glasses. The inventor of the product had designed a protective goggles to protect surgeons from medical lasers. He discovered, by accident, that the glasses were also effective in correcting biases in color vision. After repeated improvement, a new color vision correction lens was born. The lenses filter out parts of the light waves that can confuse people with color vision, allowing them to distinguish between colors without distorting others too much.

Are these special color blind glasses really so magical? Intrigued, Swain tried on the glasses. They look like ordinary sunglasses, but they don’t look good when you put them on. Through his glasses, Swain saw unprecedented bright colors, saturated with reds and greens, and clearer details. He saw the setting sun glowing red and the clouds around him tinged with gold, quite different from the “ochre” sunsets he usually saw.

Gene therapy for color blindness

While magic glasses allow many people with color vision defects to see a colorful world, some people with severe color vision defects, such as total color blindness, are more eager to solve the problem in a single step. So, is there a cure for color blindness?

A type of gene therapy under development may be able to solve the problem. In 2009, US scientists used a virus to alter some of the cones of a male squirrel monkey’s retina by inserting the gene that encodes long-wave light pigments. Male squirrel monkeys originally had only two types of cones, one sensitive to short and medium wavelengths. The genetically engineered monkeys were able to see long wavelengths of red and green light. The success of the experiment attracted so much attention that a biotech company bought the patent and began developing a gene therapy for color blindness in humans.

So far, however, there is no sign of such a treatment ever coming to the market. Why? The main reason is that the methods used in animal experiments are not suitable for medical treatment. In the experiment, the researchers injected the virus directly under the retina of squirrel monkeys, which could cause the retina to peel off or become infected, or even cause permanent blindness.

In 2015, the company developing a gene therapy for color blindness announced that it would take two more years to perfect the treatment. Two years later, however, there was no research on the treatment. There are signs that research into a treatment for color blindness is no longer a priority for the company, and progress has been repeatedly delayed, leaving millions of hoped-for people with color vision defects to wait.

However, scientists have pointed out that if people with color vision defects are restored to normal color vision through gene therapy, they may face new problems. People with color vision deficits have become accustomed to seeing the world in distorted colors, just as Swain became accustomed to ochre sunsets. If they suddenly see more colors one day, they will find it difficult to adapt to them in a short time, and even need to reunderstand the world.

经过基因治疗的松鼠猴能够分辨出其原本看不见的红色。

Squirrel monkeys treated with gene therapy were able to distinguish red colors that were otherwise invisible.

2018最新安博盒子開箱測試!

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下麵是配件:電源、HDMI、藍牙遙控器、七號電池、保修卡和說明書。

“安博盒子5”的图片搜索结果

安博盒子5代所有的介面都分佈在機身的後側,包括1個AV介面,可以連接傳統的老電視,1個USB3.0介面,可以連接U盤或者移動硬碟,1個電源介面及1個HDMI2.0介面,1個網線介面。

背面是簡單說明。支援WIFI,支援杜比音效。遙控器與主機材質一樣,握持感舒適,紅外想連接方式,操控更加隨意,一體化工作做得不錯。

 

===貳 配置===

收集了目前市面上主要幾款價格在同一區間的盒子,做了比較。重點的配置我再重複一下:1GB的運存,16GB的記憶體,安卓5.1.1的系統,支援網線和WIFI,1個AV介面,1個USB2.0介面,1個電源介面及1個HDMI線介面,1個網線介面。安卓盒子硬體上基本差不多。

“安博盒子5”的图片搜索结果

 

===三 開機===

首先要求配對藍牙遙控器然後會讓你連接WIFI和輸入密碼,之後進入沉浸式UI主介面那麼問題又來了,啥叫沉浸式? 沉浸式用戶體驗是讓使用者只關注於一種資訊的體驗,盡可能的減少其他的幹擾資訊,使使用者盡可能能的停留在此頁面當中 乃們感覺到了嗎慣例先看設置有了最新版本的推送,可以一鍵升級測試一下網速,家裡是10M電信光纖這個速度被評價為4K基情 不好意思,輸入法亂聯想,其實是4K極清 。顯示欄目,木啥用系統,安卓5.1.1如假包換 USB調試要打開系統記憶體容量16GB,夠不夠用你們說的算 允許安裝未知來源應用,不打開就不能裝U盤裡的用戶端了播放參數啥的,動態壓縮啥的,其實也沒什麼選項,就是要麼你打開要麼你關上 隨時都能調出來的下拉式功能表,裡面有個系統加速,卡的時候用 卡的時候用,卡的時候用現在肯定還是絲般順滑,以後怎麼樣, 那只有等到以後再說了……搜索框,中規中矩突然跳出這個視窗,是否開啟adb埠。這是神馬啊 能不能不要這麼多高大上的詞彙 ,讓我都不能安心享受,能說點通俗易懂的不能

“安博盒子5”的图片搜索结果

 

==安博盒子測試===

■一是H.265視頻測試。片源是鋼鐵之淚,大概十分鐘左右,1.8GB。通過U盤播放,毫無壓力,畫面感人 現在的盒子,你不支持4K,不支持H.265,不支援杜比音效,你好意思出來嗎? 下麵進入科普時間:什麼是h.265呢?在畫質一樣的情況下,H.265標準比H.264標準省一半的頻寬。在低頻寬的情況下,H.265也可以讓你獲得纖毫畢現的細膩畫質,豐富絕倫的圖像細節,流暢自然的播放效果。總結起來就是”頻寬減半、清晰度翻倍”。

■二是支持協力廠商應用安裝。盒子的核心就是用互聯網看電視看電影,安博盒子5可安裝協力廠商應用,可接入國廣東方播控平臺,集成CIBN環球影視、銀河•奇異果、雲視聽極光、當然你也可以安裝協力廠商應用,比如沙發管家等以下為沙發管家測評

■四是多屏互動。我手上的大法Z3可以連接,就是手機上出現什麼,電視上就出現啥,木啥卵用,清晰度一般

■五是USB連接功能。可以讀取U盤,移動硬碟,播放電影,安裝套裝軟體 我想你們(此處省略二十字)硬碟裡的大姐姐吧 。

■六是學習成本。其實現在很多盒子都是同質化的,年輕人上手快那是自然,可是家裡有老人,使用盒子到底順不順手呢。在女朋友的點撥下 ,準備請母上試用一下,她老人家對這個小東西還蠻感興趣的,不停地問這個是什麼呀? 是不是可以看電視劇呀? 是不是那種不花錢啊?能不能看中央台啊? …… 在網路比較順暢的情況下,獲得了好評!

 

==總結===

■優點:1、長得漂亮;2、介面豐富,功能齊全;3、軟體版本高、硬體設定高;藍牙功能強大;

■不足:价格有点贵,网价168美金,海外地区没有维修点,只能邮寄会厂家售后。

智能/不智能?——小米智能插座

智能插座是搶佔智能家居的入口,小米在這方面也不例外,在2014年10月10號小米就發佈了智能插座新產品,價格79元,智能王袍加身後,一個簡單插座升級能給我們帶來什麼?

插座包裝很小,裡面就是一個主體以及說明書,和普通插座樣式沒多大差別,白色造型,產品尺寸62*55*33mm,插孔類型是國標小五孔,支援三插或者兩插的插頭,輸入電壓AC 180~250V,輸出電壓:AC 180~250V DC 5V。

除了常用的插孔外,還配有一個單獨的USB介面,這點考慮得十分周到,不需要充電器,資料線連接即可充電,插座供電和USB供電是單獨控制,設有一個開關機,重定直接長按。

在插排上使用,體積方面顯得有些力不從心,在雙排插排環境下,USB位置的設計,會佔用了對排位置,不知不覺陷入了窘境。

在牆上普通二三插座上使用,可以看到,小米智能插座插上後,基本上是覆蓋了上面兩孔插座,體積有些偏大。

目前該智能插座主要賣點就是分為兩種:遠端開關,定時開關。在實現該功能前,我們需要使用“小米智能家庭”app,進入使插座和路由器連接配對,無線類型為WI-FI 2.4 Ghz,經測試,普通移動MIFI與PC端獵豹免費WIFI也能正常連接使用。

實現遠端開關:無論是否在室外,我們都可以遠端遙控插座。可以用手機端資料流程量控制家中/辦公室中的智能插座,前提是智能插座與路由器聯網即時連接,手機端發送指令到路由器上,路由器把指令回饋到插座。有時候可能開關動作不是立刻回應,這與路由器網速存在一定關係,延遲最大約1秒。

定時開關:這是提前設置的功能,並且可以延伸很多場景。如下班前提前半小時煮飯,回家就可以吃上香噴噴的米飯,當然你得煮菜。。。如我們可以早上設置提前半小時煮熟雞蛋做早餐,這樣你就可以多睡幾分鐘了,當然你得別睡過頭。。。比如家中電熱水器需要提前加熱,我們也可以預設置。

 

【寫到最後】

智能插座,我覺得這類產品確實有存在價值,是智能家居的開端,很小成本打開了智能家居門檻,實現了一些美好的場景。但局限性也開始凸顯,體積過大可能反而給插座造成負擔,需要時刻聯網的條件可能會限制了一部分人群,價格稍許偏高。其實目前所做到的“智能化”,還只是很少功能上的應用,79元我覺得應該可以帶給用戶更多價值與驚喜。

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3、VST全聚合

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“VST全聚合”的图片搜索结果

安博科技打造海外最牛的電視盒子,牛在哪裡?

導讀:安博科技專屬網路電視盒(簡稱“安博盒子”)!這個盒子可是由港人團隊研發, 專為香港+海外專屬打造的!安博盒子全新資訊平臺的終端設備,三大功能亮點:全國有服務器、看直播、上電視一“盒”打盡。

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安博盒子:帶來頂級的硬體設定

「安博盒子三代硬體設定」的圖片搜尋結果

硬體設定也是安博盒子的一大亮點。市面上知名的電子設備生產商有很多,然而我們毫不猶豫地選擇了它——安博盒子。原因很簡單,華為是行業品質的標杆。它是海外華人買盒子的首選,堅持走高端而不奢侈、簡潔而有內涵的產品路線。

安博盒子由港人團隊精心打造,品質杠杠的,怎能不讓人安全感十足呢?

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「安博盒子三代」的圖片搜尋結果

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看完這些,你知道“安博電視盒”有多牛了吧?!安博科技精心打造的電視盒子,叫人怎能不叫好呢?

盤點最受外國人喜愛中國電視“盒子”

能看電視的“盒子”、國產手機、無人機、中國微信……大家熟知熱銷海外華人市場若干年的“老乾媽”、“馬應龍”已不再孤單。近年來,中國越來越多的國產品牌走向世界,新國貨不僅受到華人華僑的喜愛,也開始引領一些外國本地人士的消費潮流。

 

中國員工回國代購成常態

中國產的各類“盒子”——一種高清互聯網電視盒,正在受到海外人士追捧,有了小米“盒子”、華為“盒子”等不需要衛星接收器、有線電視電纜,只要有網路就可以用,即便是在遙遠的非洲也能清晰收看本季新改名的《中國新歌聲》。一位長期在海外工作IT公司市場人士徐先生告訴北京青年報記者, 當有中國員工回國時,常常有本地同事央求代購一台中國的“盒子”。這種神奇的小盒子有越獄版本,能看到中國同步的最新電視節目,看Youtube上的視 頻,還有海量的電影資源。最關鍵的價格在300-400元左右,性價比高。

他的幾個在澳大利亞、非洲等地工作的朋友發現,淘寶上有賣“盒子”的商家不僅幫忙裝載程式,還提供貼心的“全球郵”服務。例如從中國郵寄到澳大 利亞悉尼的順豐快遞需3-4天到貨,郵費為230元。由於郵費價格不菲,很多人還是會等同事出差或回國求“人肉”背回來,等不及的才會通過快遞直接下單購 買。

北青報記者看到,“小米”盒子在淘寶銷售的有五六個版本,包括普通版本、越獄版、至尊版、海外版等。某店鋪已經售出2000多個,價格在399 元-439元人民幣之間。上千條評論裡很多人都寫下很長的留言和照片。一位來自美國的華僑寫道:“不懂英語的父母,終於可以同步追看中國電視劇了。”

樂視盒子U3登陸美國樂視商城

「樂視盒子U3登陸美國樂視商城」的圖片搜尋結果

樂視美國自12月10日宣佈樂視盒子U3登陸美國樂視商城,又於今晨在其官方微博上正式公佈了盒子的具體上市日期,定價及購買方式。此款樂視盒子U3專 為美國華人用戶打造,擁有強大華語影視資源的同時,還針對美國市場做了細緻的測試及改良,確保在美國網路環境下無卡頓。四核+八核CPU是原有盒子速度的 5倍,快到令人窒息。

據瞭解,全新樂視盒子U3專為美國華人打造,國內無同款。速度快於原有盒子的5倍,Cortex A9構架的2.0GHz四核CPU, Mali450 MP6+2八核GPU,2GB DDR3記憶體,支援4K、1080視頻硬解碼和3D視頻輸出,可連接HDMI介面。除了卓越的內置硬體,樂視還對盒子做了細緻的測試和適應美國本土的改 良,因此在美國三大運營商Comcast、AT&T、Verizon的網路接入環境下毫無卡頓,不會存在無線壁壘。

借著良好的銷售勢頭和熱度,樂視落地美國的佈局速度令人驚歎。樂視智慧產品在國內及美國熱賣的程度樂視盒子U3迅速贏得美國華人用戶的歡迎。