hifipenny 发表于 2004-5-12 10:10

SF L/4/5/6 LED的寿命,(个人愚见、非专业)

<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=left><FONT size=3><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">一直以来,大家都比较担心</SPAN><FONT face=宋体><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">L4\\L5\\L6</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">的</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">LED</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">的寿命问题,毕竟一个灯头的价格不菲</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">!</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"><?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></SPAN></FONT></FONT>


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<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=left><FONT size=3><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">关于这种</SPAN><FONT face=宋体><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">LED</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">的寿命,说法也有很多,最短的是</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">500</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">小时,有的说是</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">5000</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">小时,其他的一些说法可比较含混,比如:几千小时、</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">outlive you</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">等等!</SPAN></FONT></FONT><SPAN lang=EN-US style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">        </SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt"><o:p></o:p></SPAN>


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<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=left><FONT size=3><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">那么,这个5W </SPAN><FONT face=宋体><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">LED</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">的寿命就没有定论了吗?</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt"><o:p></o:p></SPAN></FONT></FONT>


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<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=left><FONT size=3><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">呵呵,好像是没有丫</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt"><FONT face=宋体>~~<?xml:namespace prefix = v ns = "urn:schemas-microsoft-com:vml" /><v:shapetype id=_x0000_t75 stroked="f" filled="f" path="m@4@5l@4@11@9@11@9@5xe" o:preferrelative="t" o:spt="75" coordsize="21600,21600"> <IMG src="uploadfile/2004-4/20044282151660.gif"><v:stroke joinstyle="miter"></v:stroke><v:formulas><v:f eqn="if lineDrawn pixelLineWidth 0"></v:f><v:f eqn="sum @0 1 0"></v:f><v:f eqn="sum 0 0 @1"></v:f><v:f eqn="prod @2 1 2"></v:f><v:f eqn="prod @3 21600 pixelWidth"></v:f><v:f eqn="prod @3 21600 pixelHeight"></v:f><v:f eqn="sum @0 0 1"></v:f><v:f eqn="prod @6 1 2"></v:f><v:f eqn="prod @7 21600 pixelWidth"></v:f><v:f eqn="sum @8 21600 0"></v:f><v:f eqn="prod @7 21600 pixelHeight"></v:f><v:f eqn="sum @10 21600 0"></v:f></v:formulas><v:path o:connecttype="rect" gradientshapeok="t" o:extrusionok="f"></v:path><o:lock aspectratio="t" v:ext="edit"></o:lock></v:shapetype><o:p></o:p></FONT></SPAN></FONT>


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<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=left><FONT face=宋体><FONT size=3><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">SF</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">自己的说法是:所有的</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">L</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">系列均使用一个</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">LUXEON</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">的</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">5W</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">的</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">LED</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">(呵呵,</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">L1</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">是</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">1W</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">的)这种</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">5W LED</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">可以发出超过</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">100 LUMINA</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">的光线(</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">L4\\L5\\L6</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">的光通量是</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">60 LUMINA </SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">,而不是上面所说的</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">100 LUMINA </SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">,估计是采用了是</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">3W</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">的功率来驱动,这样也能够延长</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">LED</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">的寿命),</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">SF</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">自身也长期大量测试过这些</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">LED</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">,但是由于这种</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">LED</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">自身质量的离散性问题,要精确测量</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">LED</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">的寿命,非常不容易。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt"><o:p></o:p></SPAN></FONT></FONT>


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[此贴子已经被作者于2004-5-12 2:12:04编辑过]

Batwing917 发表于 2004-5-13 06:42

surefire L4/L5/L6 是升壓恆流667mA


假設5w 的Vf是6.8v,就等於~4.5w


sf無有把電流設在正常的750mA,相信是因為L4的散熱問題


推斷U2恆流比667mA高


lumiled發表"X"級的5W可達192-249 lumen


       


另外,我有兩個白色5W改裝,一是"U"級,一是"V"級的5w led


兩者都是用上了恆流750mA實際功率是65%的電路(測量後再計算出來),


可是兩者的總光度都分別明顯比L4暗


       

hifipenny 发表于 2004-5-12 10:13

<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=left><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">不同级别的</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">5W</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">的</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">LUXEON</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">的</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">LED</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">输出能力变化也很大,根据这些</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">LED</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">的表现,像对待钻石一样,</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; mso-font-kerning: 0pt"><FONT face="Times New Roman">LUXOEN</FONT></SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">对这些</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">LED</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">进行了分级,</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">SF</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">只采用最高级别的</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">LUXOEN 5W LED</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">,这一点着实让人欣慰!</SPAN>



<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=left><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt"><IMG src="uploadfile/2004-4/200443023311127.gif"></SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"><?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></SPAN>



<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=left><SPAN lang=EN-US style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"><o:p></o:p></SPAN>



<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=left><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">希望:被</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">SF</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">正常测试的那些</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">LED</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">到目前为止一个也没有烧坏,所以相关的精确寿命数据迟迟不能公布。</SPAN>



<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=left><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt"><IMG src="uploadfile/2004-4/200442823451367.gif"></SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">        <o:p></o:p></SPAN>



<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=left><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">通过以上的信息,和一些</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">LED</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">的微观照片,我开始认为,这种</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">5W LED</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">应该是许多小功率的</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">LED</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">并联在一起的,只是总功率能达到</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">5W</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">。</SPAN>


<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=left><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt"></SPAN>       


<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=left><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">5W LED微观图</SPAN>


<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=left><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt"></SPAN><IMG src="uploadfile/2004-5/20045122533292.jpg">       



<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=left><SPAN lang=EN-US style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"><o:p></o:p></SPAN>



<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=left><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">5W LED基座</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">的结构</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"><o:p></o:p></SPAN>



<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=left><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">uploadfile/2004-5/20045121285725.jpg</SPAN>


<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=left><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">uploadfile/2004-5/200451213048470.jpg</SPAN><BR>


[此贴子已经被作者于2004-5-12 2:54:49编辑过]

hifipenny 发表于 2004-5-12 10:16

<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=left><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">因此,我推测,这种</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">5W LED</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">一般情况下不会瞬间烧坏,但是正常的衰减难以避免,也就是部分</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">LED</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">单元损坏,这种衰减或者损坏可能是由于高温造成的,</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">L4\\L5\\L6</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">相比较而言,</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">L4</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">的温度最高(可能是由于体积较小,散热受影响造成),因此衰减应该最快,</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">L5\\L6</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">衰减速度相对比较慢!</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt"><?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></SPAN>



<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=left><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">同时随着部分</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">LED</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">的损坏,这个</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">5W LED</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">的功率会逐渐变小,因此发热量也会慢慢降低,衰减速度会放慢!</SPAN>


<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=left><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">全新5W LED的发光情况</SPAN>


<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=left><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt"><IMG src="uploadfile/2004-5/2004512142717249.jpg"></SPAN>



<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=left><SPAN lang=EN-US style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"><o:p></o:p></SPAN>



<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=left><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">衰减后的</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">5W LED的发光情况</SPAN>



<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=left><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">可以看到,部分LED单元已经损坏,其余LED单元仍然可以正常使用!!<IMG src="uploadfile/2004-4/200443023311127.gif"></SPAN>



<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=left><SPAN lang=EN-US style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"><IMG src="uploadfile/2004-5/200451213143744.jpg">        </SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt"><o:p></o:p></SPAN>



<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=left><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt"><IMG src="uploadfile/2004-5/200451213226173.jpg"></SPAN></SPAN>



<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=left><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">设想一个比较极端的情况:最后当这个</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">5W LED</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">只剩下极少数的单元,总功率下降到</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">1W </SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">,这个时候这块</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">5W LED</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">的寿命也许就和</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">1W</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">的</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">LED</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">寿命一样了!!因此这个</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">5W LED</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">一般情况下决不会不亮的,只会越来越不亮,呵呵,</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">SF</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">万岁丫</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">~~~</SPAN>



<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=left><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt"><IMG src="uploadfile/2004-4/20044282245486.gif"></SPAN><BR>


[此贴子已经被作者于2004-5-12 14:28:29编辑过]

杠铺掌柜 发表于 2004-5-12 13:33

上面的说法不对吧,似乎不合乎数学的分析。另外发光效率的问题,记得有人(坛子里的)测过,功率确乎是5W呀,至于达不到60流明应该是SF的数据比较保守吧

Raptor 发表于 2004-5-12 16:49

呵呵,贴主看来是看了SF的材料了,但似乎没有仔细研读:-)


“<SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">5W LED</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">可以发出超过</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">100 LUMINA</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">的光线</SPAN>”这句话应该理解为“5W LED最高的发光能力是100Lm”,但并不是每个5W LED都能有这么好的表现,SF给出的则是一个较为保守的数值。


很多测试表明L4/5/6的光通量达到了80Lm,介于最高值和SF的标示值之间,应该是比较能说明问题的。


对于大多数的玩家来说,不必关心寿命问题:-)

mscdex 发表于 2004-5-12 18:59

lumiled官方的数据表明,3w的led在3w驱动的时候65lumen,寿命50000小时衰减为70%,4w驱动的时候80lumen,20000小时衰减为50%,5w的可能寿命要短一些,因为功率大,温度高,不过按标准驱动的话,应该不比3w超频驱动的寿命短,所以可以认为20000小时衰减50%比较接近5w的实际寿命,我测试过L5的输入功率,输入功率接近6W,所以可以说是满功率驱动的,并不是3w驱动


lumiled官方数据说5w最高可达到120lumen,估计是最好的那种能达到的最高亮度,lumiled已经研发成功150lumen的5w led,所以,sf的65流明也好,80流明也好,还不能够算是把led的所有油水炸干,还有提高的余地,不过他们可能是为了提高可靠性才这么做的吧

hifipenny 发表于 2004-5-12 19:43

<DIV class=quote><B>以下是引用<I>Raptor在2004-5-12 8:49:01</I>的发言:</B><BR>“<SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">5W LED</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">可以发出超过</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">100 LUMINA</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 0pt">的光线</SPAN>”这句话应该理解为“5W LED最高的发光能力是100Lm”,但并不是每个5W LED都能有这么好的表现,SF给出的则是一个较为保守的数值。





</DIV>呵呵,不是什么SF的材料,只是2004年目录上的信息



另外:SF的意思是:LUXEON的LED有离散性,但是SF所采用的LED都是LUXEON顶级的LED,这些LED具备发出100LUMINA光线的能力,SF文中并未提及为何L系列的输出只有60LUMINA左右。


我只是根据以前的一些说法,猜测这种LED采用的是3W的功率来驱动!


[此贴子已经被作者于2004-5-12 12:02:35编辑过]

hifipenny 发表于 2004-5-12 20:17

<DIV class=quote><B>以下是引用<I>mscdex在2004-5-12 10:59:17</I>的发言:</B><BR>lumiled官方的数据表明,3w的led在3w驱动的时候65lumen,寿命50000小时衰减为70%,4w驱动的时候80lumen,20000小时衰减为50%,5w的可能寿命要短一些,因为功率大,温度高,不过按标准驱动的话,应该不比3w超频驱动的寿命短,所以可以认为20000小时衰减50%比较接近5w的实际寿命,我测试过L5的输入功率,输入功率接近6W,所以可以说是满功率驱动的,并不是3w驱动</DIV>
<BR>老大丫~~


L6的功率我也测试过,根据输入电压的变化,输入功率在5-6W之间,不过这个功率只是到电路板上的功率,真正加载在LED上的功率,我想大家都没有测试过。而电路板上面必然有功率损耗,遗憾的是我们不知道这块电路板的效率是多少。


不过一个有趣的事情是,我在测量过BD SPACESHOT2头灯的电路部分的效率(他的电路部分是分离的,体积比较大,测量方便),在使用XENON灯泡时,他的调整电路的效率也就是60%多一点(按照电池标定容量计算),而使用LED时,这个LED和ARC-AAA的LED差不多,结果6节2100MAH的电池只能持续点亮10个小时,效率不到5%,狂晕!!


要是L系列的调整电路的效率也是60%,那么5W的输入功率,最终加载在LED上的功率正好是3W左右!


从另外一个角度讲,SF精选了LUXEON最定级的LED,这批LED具备发出100LUMINA光线的能力,也正好印证了U2最大功率时的输出是100LUMINA,因此我推测,U2的LED在最大功率时是满功率5W驱动,而L系列都采用的是3W的驱动功率!

mscdex 发表于 2004-5-12 20:23

这个样子呀~那好办,自己改电路,达到满功率驱动,不过问题来了。。。我根本拆不开L5,螺纹是用胶粘死的:)

hifipenny 发表于 2004-5-12 20:27

<DIV class=quote><B>以下是引用<I>mscdex在2004-5-12 12:23:23</I>的发言:</B><BR>这个样子呀~那好办,自己改电路,达到满功率驱动,不过问题来了。。。我根本拆不开L5,螺纹是用胶粘死的:)</DIV>
<BR>省省吧!L5现在不好买哦!


不过L6现在到货了,要不~~~<IMG src="uploadfile/2004-4/20044282245486.gif">

CRCR 发表于 2004-5-12 21:59

               个人认为,SF产品是用来干什么的确我也不太清楚?我只是看了它做工工艺就迷上了几款。也不知道什么时候不想玩。买过这个SF产品的朋友,最怕烧坏的是氙气灯泡与123A电池同行 (P系列我已经5个)MN系列灯泡还在使用中。自从玩上了L-系列,使用时间问题好像没有考虑过 LED 。随便算一下玩SF产品。


P系列灯泡寿命(众说)在3--30小时左右。用了多少个电池呢!谁一个泡用到过30小时呢包括123A电池同行。。。


L系列的LED不要说寿命上几万小时。就有个500小时左右就已经足够了。足够了。。要配同多少个123A电池啊!!!还在乎一个LED配置。。。


       

Raptor 发表于 2004-5-13 04:18

<DIV class=quote><B>以下是引用<I>hifipenny在2004-5-12 12:17:44</I>的发言:</B><BR><BR>老大丫~~



L6的功率我也测试过,根据输入电压的变化,输入功率在5-6W之间,不过这个功率只是到电路板上的功率,真正加载在LED上的功率,我想大家都没有测试过。而电路板上面必然有功率损耗,遗憾的是我们不知道这块电路板的效率是多少。


不过一个有趣的事情是,我在测量过BD SPACESHOT2头灯的电路部分的效率(他的电路部分是分离的,体积比较大,测量方便),在使用XENON灯泡时,他的调整电路的效率也就是60%多一点(按照电池标定容量计算),而使用LED时,这个LED和ARC-AAA的LED差不多,结果6节2100MAH的电池只能持续点亮10个小时,效率不到5%,狂晕!!


要是L系列的调整电路的效率也是60%,那么5W的输入功率,最终加载在LED上的功率正好是3W左右!


从另外一个角度讲,SF精选了LUXEON最定级的LED,这批LED具备发出100LUMINA光线的能力,也正好印证了U2最大功率时的输出是100LUMINA,因此我推测,U2的LED在最大功率时是满功率5W驱动,而L系列都采用的是3W的驱动功率!




</DIV>
你测的60%的电路效率应该算是比较低的了,想想一节AAA都能让ARC AAA亮五个小时呢。


以L4/5/6的情况,85%的电路效率是比较Easy的事情,想想SF LED的亮度曲线就可以推测其电路的设计水平了。何况s2k代购的DK都能达到80%以上的效率。<BR>

hifipenny 发表于 2004-5-13 04:39

<DIV class=quote><B>以下是引用<I>Raptor在2004-5-12 20:18:20</I>的发言:</B><BR>你测的60%的电路效率应该算是比较低的了,想想一节AAA都能让ARC AAA亮五个小时呢。



以L4/5/6的情况,85%的电路效率是比较Easy的事情,想想SF LED的亮度曲线就可以推测其电路的设计水平了。何况s2k代购的DK都能达到80%以上的效率。<BR>




</DIV>
<BR>呵呵!


我也希望调整电路的效率能高一些,但是我不清楚这种低电压电路的效率到底能做到多高,但是85%不是一件容易的事


举个列子,不当之处,请指正:


L1高亮度的使用时间是1.5个小时,这个时候电池放电电流应该在700MA左右,估计容量能达到1000MAH,就拿1000MAH计算,那么这个电池总共可以输入3W*小时的能量,L1采用的是1W级的LED,持续工作1.5个小时,总共消耗1.5W*小时的能量,那么剩下的那1.5W*小时是不是消耗在调整电路上了呢?要是的话,那么L1的调整电路的效率只有50%,同样也可以计算出KL1调整电路的效率在50%-60%!


要是这样的话,要达到85%的效率,恐怕不是一件容易的事!

Batwing917 发表于 2004-5-13 06:54

L1大概是有兩小時的輸出


KL1用2*123有4.5至5小時恆流輸出,如果按6w電容量,4.5小時計算


是有最少75%的功率


<img src="attachments/dvbbs/2004-5/2004512225346326.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2004-5/2004512225346326.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />


       


       

hifipenny 发表于 2004-5-13 07:11

还是老兄玩的透彻,有些疑问,烦老兄解答(我对电路不大懂,望不要见笑)




<DIV class=quote>surefire L4/L5/L6 是升壓恆流667mA</DIV>这里的667ma是加载在led上面的电流吧,你是如何测量的?




<P class=quote>假設5w 的Vf是6.8v,就等於~4.5w


这个6.8V是LUXEON 5W LED的额定电压,对应电流750MA,正好是LUXEON 5W LED的额定功率5W,


你后面已经提到过:SF没有把电流设定在正常的750MA,而是设定在667mA,这么一来,相应的电压应该低于6.8V才对,那么加载在LED上的功率必定小于5W了!



<P class=quote>sf無有把電流設在正常的750mA,相信是因為L4的散熱問題



<P class=quote>推斷U2恆流比667mA高


这个猜测和我一样,要是U2采用的是和L系列相同等级的LED,而其输出能力在100 LUMINA,正好能够印证,L系列的LED没有采用满功率驱动,大致的驱动功率应该在3-4W



<P class=quote>lumiled發表"X"級的5W可達192-249 lumen


好恐怖的数据,希望早日见到这款LED,不知道能有多亮!!


请告知资料的相关出处!谢谢



<P class=quote>另外,我有兩個白色5W改裝,一是"U"級,一是"V"級的5w led


请教:U\\V级,分别是什么含义,相当于什么档次,第一档、还是第二档?还有什么级次的区分?



<P class=quote>兩者都是用上了恆流750mA實際功率是65%的電路(測量後再計算出來),



<P class=quote>可是兩者的總光度都分別明顯比L4暗<BR>       


这一点也印证了SF自己的说法,所有L系列采用的是最高级别的5W LED!





[此贴子已经被作者于2004-5-13 0:11:48编辑过]

ninjai 发表于 2004-5-13 07:23

亮度上打一点折扣,也是为了确保使用时间。另外,5瓦的寿命本身是不短的,而短的是白光的,其他颜色的寿命狠长。主要是受到荧光涂层的限制,如果没记错的话,



<A name=26432><FONT color=#000066><B>Batwing</B></FONT></A>,你有5瓦各级别LED的光通量数据表吗?





[此贴子已经被作者于2004-5-12 23:25:14编辑过]

hifipenny 发表于 2004-5-13 07:29

<DIV class=quote><B>以下是引用<I>Batwing917在2004-5-12 22:54:42</I>的发言:</B><BR>L1大概是有兩小時的輸出



KL1用2*123有4.5至5小時恆流輸出,如果按6w電容量,4.5小時計算


是有最少75%的功率


<img src="attachments/dvbbs/2004-5/2004512225346326.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2004-5/2004512225346326.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />







</DIV><BR>用SF2003年出厂的电池,L1使用时间正好是1.5小时,随即便发生闪烁,自动变为低亮度。



要是在L1上123A电池能够放出3W.H的能量的话,那么电路板的效率不会超过60%


KL1我未测量过,不过根据SF说明书上的数据,采用两节电池驱动时,高光正好能持续4个小时。


一个需要值得注意的地方是:123A电池在300MA左右的电流下放电容量到底有多大,我估计要超过1000MAH,这个电流下放电,容量估计能达到1200-1400MAH,这样计算下来,两个电池的容量在7.2-8.4WH之间,对应KL1消耗的 4.5WH,KL1电路板的效率也就是60%左右


记不清在什么地方看到过,在1000MA以下的电流下,123A的容量是大于1000MAH的,不大精确的数据,不过一般123A电池的容量是1300MAH左右


不过另外一个地方也需要注意:123A电池的容量越来越大了





[此贴子已经被作者于2004-5-12 23:57:30编辑过]

hifipenny 发表于 2004-5-13 08:04

<DIV class=quote><B>以下是引用<I>ninjai在2004-5-12 23:23:22</I>的发言:</B><BR>亮度上打一点折扣,也是为了确保使用时间。另外,5瓦的寿命本身是不短的,而短的是白光的,其他颜色的寿命狠长。主要是受到荧光涂层的限制,如果没记错的话,</DIV>
<BR>LUXEON站上的资料是这样的,彩色的5W LED寿命标的都是100,000小时,就是白色的没有标明寿命


<IMG src="http://www.electronics-supply.com/admin/images/lxhl-fb5c-l.jpg">


<UL>
<LI>5 watts produces 27 Lumens of rich, saturated Blue light
<LI>Lights with 6.84 VDC
<LI>4 times brighter than standard Luxeons, and 50 times brighter than traditional LEDs
<LI>Fully dimmable
<LI>Up to 100,000 hour lifespan
<LI>Superior ESD protection
<LI>Cool beam, safe to the touch
<LI>Instant light (less than 100 ns turn-on time)
<LI>No UV</LI></UL>
呵呵,就是不怎么亮,不到30LUMINA ,


要不你弄一个绿色的L5玩玩<IMG src="uploadfile/2004-4/20044282245486.gif">

Batwing917 发表于 2004-5-13 12:03

penny



其實我對電路認識也不大


只是常常閱覽外國的討論得知數據已


667mA是國外的人巳測量出來的,我也不敢弄開自己的L4


關於分級的數據,大家可以參考以下幾個


<A href="http://home.comcast.net/~theledguy/bin_codes/index.htm" target="_blank" ></A>        http://home.comcast.net/~theledguy/bin_codes/index.htm


               


<A href="http://www.flashlight-fan.com/flame_page/frame_luxeon.htm" target="_blank" >http://www.flashlight-fan.com/flame_page/frame_luxeon.htm</A>


有關"X"級光度的5w, 國外有些人兄有這"X"級的改裝


不過相信現在就算出高價也能買得這led


"X"級的例子, 以下提及bin#X3V的X就是"X"級了


http://fuja.s22.xrea.com/review/am-x3v/index.html



早期的Luxeon用1,2,3,4,5來代表色溫, 1是最黃,5是最藍


現在新出的luxeun用V0,V1,W0,W1,X0,X1..etc 代表色溫


每粒luxeon背後都有4個位,


第一是光度,第二+三是色溫,第四是額定電壓


這是個很少有的3W,額定電壓"H"級,很底o我..


        <img src="attachments/dvbbs/2004-5/20045133202658.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2004-5/20045133202658.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />


1W可以是N,P,Q,R


3W通常都是T&amp;S


5W可以是U,V,W,X



另外,是0我. 123A應該是有大概1200mah


不過電池的電壓使用時也會不斷下降.&lt;3v


L4從電池取出電流剛好1A


實際只有大概60分鐘光度輸出,相信部分的電池容量是用在下降中的光度,不是恆流


因此估計, 計算電路功率時,都會比實際為底


KL1的4.5未計算光度下降中的電量


不過怎樣也好,85%的實際功率真的較難達到






[此贴子已经被作者于2004-5-13 4:06:04编辑过]
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