红光加绿光是什么光
<div class='showpostmsg'><p><span style="font-size:10.5pt"><span style="font-family:宋体">红光与绿光混合在一起,并不能产生黄光,不存在两种不同波长的光混合后变成另一种波长的光的现象。</span></span> <br /><br />
<span style="font-size:10.5pt"><span style="font-family:宋体">我们看到红光与绿光混合时,觉得是黄光,那是我们眼睛的感觉,其实光还是红光与绿光,只是人的眼睛把它误认为是黄光。</span></span> <br />
<br />
<span style="font-size:10.5pt"><span style="font-family:宋体">这是由人眼睛检测彩色信号的原理带来的。</span></span> <br />
<br />
<span style="font-size:10.5pt"><span style="font-family:宋体">人眼睛里有三种检测彩色的视觉细胞,也就是有三种敏感峰值波长不同的光学传感器,第一种敏感波长峰值在红光段,第二种敏感波长峰值在绿光段,第三种敏感波长峰值在蓝光段。</span></span> <br />
<br />
<span style="font-size:10.5pt"><span style="font-family:宋体">敏感峰值波长在红光段的,并不意味着它只能检测到红光,只是说它对红光最敏感,到了黄光、绿光段,就不那么敏感了,波长偏离红光越远,则越不敏感,在接受到光时其输出也越弱。</span></span> <br />
<br />
<span style="font-size:10.5pt"><span style="font-family:宋体">我们假定红光细胞在接收到光强为</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">1</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">的红光时,输出为</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">1</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">;在接收到光强为</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">1</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">的黄光时,输出为</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">0.5</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">;在接收到光强为</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">1</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">的绿光信号时,输出为</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">0</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">。</span></span> <br />
<br />
<span style="font-size:10.5pt"><span style="font-family:宋体">假定绿光细胞在接收到光强为</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">1</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">的红光时,输出为</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">0</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">;在接收到光强为</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">1</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">的黄光时,输出为</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">0.5</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">;在接收到光强为</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">1</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">的绿光信号时,输出为</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">1</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">。</span></span> <br />
<br />
<span style="font-size:10.5pt"><span style="font-family:宋体">那么当有一束光强为</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">1</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">的红光照进眼睛,红光细胞输出</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">1</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">,绿光细胞输出</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">0</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">,这时我们就知道有一束光强为</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">1</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">的红光。</span></span> <br />
<br />
<span style="font-size:10.5pt"><span style="font-family:宋体">当有一束光强为</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">1</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">的绿光照进眼睛,红光细胞输出</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">0</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">,绿光细胞输出</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">1</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">,这时我们就知道有一束光强为</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">1</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">的绿光。</span></span> <br />
<br />
<span style="font-size:10.5pt"><span style="font-family:宋体">当有一束光强为</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">1</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">的黄光照进眼睛,红光细胞输出</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">0.5</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">,绿光细胞输出</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">0.5</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">,这时我们的大脑发现两种细胞都有输出,且都为</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">0.5</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">,于是大脑把导致这种现象的光定义为光强为</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">1</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">的黄光</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">——</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">大脑的定义:当红光细胞和绿光细胞同时输出</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">0.5</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">时,定义为光强为</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">1</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">的黄光。</span></span> <br />
<br />
<span style="font-size:10.5pt"><span style="font-family:宋体">当有一束光强为</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">0.5</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">的红光和一束光强为</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">0.5</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">的绿光同时照进我们的眼睛,红光细胞和绿光细胞都同时输出</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">0.5</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">。现在注意了:在前一段我们提到,大脑已经定义了</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">“</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">当红光细胞和绿光细胞同时输出</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">0.5</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">时,定义为光强为</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">1</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">的黄光</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">”</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">,于是我们感受到的,就是光强为</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">1</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">的黄光。大脑没有办法区分真正的黄光和由红光与绿光同时作用形成的假黄光,于是把它们统统算作黄光。</span></span> <br />
<span style="font-size:10.5pt"><span style="font-family:宋体">红光与绿光混合在一起,并不能产生黄光,不存在两种不同波长的光混合后变成另一种波长的光的现象。</span></span> <br />
<br />
<span style="font-size:10.5pt"><span style="font-family:宋体">我们看到红光与绿光混合时,觉得是黄光,那是我们眼睛的感觉,其实光还是红光与绿光,只是人的眼睛把它误认为是黄光。</span></span> <br />
<br />
<span style="font-size:10.5pt"><span style="font-family:宋体">这是由人眼睛检测彩色信号的原理带来的。</span></span> <br />
<br />
<span style="font-size:10.5pt"><span style="font-family:宋体">人眼睛里有三种检测彩色的视觉细胞,也就是有三种敏感峰值波长不同的光学传感器,第一种敏感波长峰值在红光段,第二种敏感波长峰值在绿光段,第三种敏感波长峰值在蓝光段。</span></span> <br />
<br />
<span style="font-size:10.5pt"><span style="font-family:宋体">敏感峰值波长在红光段的,并不意味着它只能检测到红光,只是说它对红光最敏感,到了黄光、绿光段,就不那么敏感了,波长偏离红光越远,则越不敏感,在接受到光时其输出也越弱。</span></span> <br />
<br />
<span style="font-size:10.5pt"><span style="font-family:宋体">我们假定红光细胞在接收到光强为</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">1</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">的红光时,输出为</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">1</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">;在接收到光强为</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">1</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">的黄光时,输出为</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">0.5</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">;在接收到光强为</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">1</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">的绿光信号时,输出为</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">0</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">。</span></span> <br />
<br />
<span style="font-size:10.5pt"><span style="font-family:宋体">假定绿光细胞在接收到光强为</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">1</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">的红光时,输出为</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">0</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">;在接收到光强为</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">1</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">的黄光时,输出为</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">0.5</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">;在接收到光强为</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">1</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">的绿光信号时,输出为</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">1</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">。</span></span> <br />
<br />
<span style="font-size:10.5pt"><span style="font-family:宋体">那么当有一束光强为</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">1</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">的红光照进眼睛,红光细胞输出</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">1</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">,绿光细胞输出</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">0</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">,这时我们就知道有一束光强为</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">1</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">的红光。</span></span> <br />
<br />
<span style="font-size:10.5pt"><span style="font-family:宋体">当有一束光强为</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">1</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">的绿光照进眼睛,红光细胞输出</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">0</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">,绿光细胞输出</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">1</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">,这时我们就知道有一束光强为</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">1</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">的绿光。</span></span> <br />
<br />
<span style="font-size:10.5pt"><span style="font-family:宋体">当有一束光强为</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">1</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">的黄光照进眼睛,红光细胞输出</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">0.5</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">,绿光细胞输出</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">0.5</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">,这时我们的大脑发现两种细胞都有输出,且都为</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">0.5</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">,于是大脑把导致这种现象的光定义为光强为</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">1</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">的黄光</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">——</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">大脑的定义:当红光细胞和绿光细胞同时输出</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">0.5</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">时,定义为光强为</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">1</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">的黄光。</span></span> <br />
<br />
<span style="font-size:10.5pt"><span style="font-family:宋体">当有一束光强为</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">0.5</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">的红光和一束光强为</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">0.5</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">的绿光同时照进我们的眼睛,红光细胞和绿光细胞都同时输出</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">0.5</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">。现在注意了:在前一段我们提到,大脑已经定义了</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">“</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">当红光细胞和绿光细胞同时输出</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">0.5</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">时,定义为光强为</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">1</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">的黄光</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">”</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">,于是我们感受到的,就是光强为</span></span><span lang="EN-US" style="font-size:10.5pt"><span style="font-family:"Calibri","sans-serif"">1</span></span><span style="font-size:10.5pt"><span style="font-family:宋体">的黄光。大脑没有办法区分真正的黄光和由红光与绿光同时作用形成的假黄光,于是把它们统统算作黄光。</span></span></p>
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} </script><script type="text/javascript">(function(d,c){var a=d.createElement("script"),m=d.getElementsByTagName("script"),eewurl="//counter.eeworld.com.cn/pv/count/";a.src=eewurl+c;m.parentNode.insertBefore(a,m)})(document,523)</script> <p>就像彩虹七色无法真的融合新的颜色一样,说不好绝对的颜色公式</p>
三基色是最基本的 <p>人眼也是三颜色传感器吗?这个还不知道了</p>
<p></p>
<p>有一名课叫色度学,楼主可以看看</p>
<p>这个基本上就是医学生理学讲述得内容了。</p>
<p>这个就有点神奇了,之前学PS PR都介绍了这个,可能那些都是表面层次上的,并未涉及到生物学上。见识了见识了</p>
<p>从这个角度说的话,除了与人视觉细胞相匹配的光,其它的混合光都是人类的"错觉"了呗,了解了了解了</p>
本帖最后由 lanhua 于 2023-4-29 09:23 编辑
<p>讲解精辟!</p>
<p>眼见并不一定为实!!</p>
<p>长知识了!</p>
<p>谢谢!!</p>
R(red)G(green)B(blue) ,按照不同的值,产生不同的颜色 <p>RGB是最基本的三原色。比例不同结果不同。所以,需要看具体的情境。</p>
红光加绿光什么也不会变,还是红光加绿光。不存在两种不同波长的光混合后变成另一种波长的光的现象。但是我们看到红光与绿光混合时,觉得是黄光,那是我们眼睛的感觉 <p>三原色指色彩中不能再分解的三种基本颜色----品红、黄、青</p>
<p>三基色是指通过其他颜色的混合无法得到的“基本色----红、绿、蓝</p>
红光加绿光当然是变成黄光啊,这不是三原色中的两种吗
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