在线观看亚洲精品专区-在线观看亚洲免费-在线观看亚洲免费视频-在线观看亚洲欧美-欧美freexxx-欧美free嫩交video

食品伙伴網服務號
 
 
當前位置: 首頁 » 專業英語 » 英語短文 » 正文

為什么電視會發藍光

放大字體  縮小字體 發布日期:2008-10-24
核心提示:關了燈看電視的時候,總覺得電視在發著藍幽幽的光,照得屋子里都是淡淡的藍色。這是為什么呢?讓下面這篇文章來為你解答這個問題吧! Color television pictures are produced by three different colors: red, green and blue. These combine to create a whitish lig


    關了燈看電視的時候,總覺得電視在發著藍幽幽的光,照得屋子里都是淡淡的藍色。這是為什么呢?讓下面這篇文章來為你解答這個問題吧!

    Color television pictures are produced by three different colors: red, green and blue. These combine to create a whitish light with a color temperature close to that of daylight (5500 to 6500 Kelvin).

    Color temperature is a way of describing the relative amounts of the different colors that make up the light from a particular source. It can be thought of roughly as the temperature an object would need to be heated to give off light with that mixture of wavelengths. At low temperatures, low-energy colors such as red and yellow predominate; at higher temperatures the proportions of green or blue increase.

    For example, standard tungsten light bulbs have a color temperature of 3200 K and are very yellow. Your eyes adjust to this light, making it appear whiter and more like daylight. At twilight or at night, anything with a higher color temperature than tungsten lights, such as a television, appears distinctly blue.

    The same effect is seen if you look out of a room lit by tungsten light. The twilight appears particularly blue, and yet if you were to go outside and look at the same scene, the eye would no longer compare it to the lit room and the colors would appear more neutral.

    The converse is also true. Viewed from outside, the windows of houses lit by tungsten light sources look distinctly yellow. Fluorescent sources generally have a spectrum much closer to that of daylight and don't produce the same effect.

    Kelvin: 開氏溫標

    tungsten: 鎢

    spectrum: 光、光譜

更多翻譯詳細信息請點擊:http://www.trans1.cn
 
關鍵詞: 電視 藍光
[ 網刊訂閱 ]  [ 專業英語搜索 ]  [ ]  [ 告訴好友 ]  [ 打印本文 ]  [ 關閉窗口 ] [ 返回頂部 ]
分享:

 

 
推薦圖文
推薦專業英語
點擊排行
 
 
Processed in 0.168 second(s), 17 queries, Memory 0.89 M
主站蜘蛛池模板: 日本三区四区免费高清不卡 | 在线中文字幕一区 | 小毛片在线观看 | 日本黄页网站 | 99久久精品免费精品国产 | 亚洲精品第一 | 国产剧情麻豆三级在线观看 | 免费大片黄日本在线观看 | 日产精品卡二卡三卡四卡乱码视频 | 变态重口极致另类在线 | 久久夜色精品国产尤物 | 天天操视频 夜夜 | 国产剧情麻豆三级在线观看 | 综合激情在线 | 777奇米影视笫四色88me久久综合 | www.成人在线 | 久青草国产观看在线视频 | 人与禽交免费网站视频 | 色人阁婷婷 | 操碰视频在线 | 国产女乱淫真高清免费视频 | 午夜免费理论片在线看 | 深夜视频免费看 | 啪啪在线视频 | 亚洲成年人在线 | 国产精品嫩草影院人体模特 | 一区二区高清在线观看 | 国产情侣出租屋露脸实拍 | 美女黄色毛片免费看 | 亚洲 欧美 另类 吹潮 | 精品免费久久久久久成人影院 | 在线天堂中文 | 91精品福利久久久 | 99热久| www四虎影院| 69日本人xxxxxxxx18 | 5151hh四虎国产精品 | 性色综合 | 国产精品美女久久久久网站 | aaaa大片 | 国产精品久久久久久一级毛片 |