Dean wrote: > Well, what they say is 7,700+ mcd. :) Note the "+" sign. I haven't > actually measured their light output, but I'm guessing that each of > the individual LEDs in the array could be over 5,000 mcd
You could be right Dean, Particularly if these are the same units as found here: http://www.americanbrightled.com/pdf/84.pdf Red LEDs are at 660nm which is important, and rated at 6cd (6000mcd). This would mean a total intensity of 162cd which is pretty bright! Let me know what you think. I will chase up some references for this evening. Ivan. > -----Original Message----- > From: Dean T. Miller [mailto:[email protected]] > Sent: Tuesday, 14 May 2002 7:47 a.m. > To: *Silver-List* (E-mail) > Subject: Re: CS>Phototherapy Light Wand Assembly Instructions > > > Hi Ivan, > > On Mon, 13 May 2002 21:45:23 +1200, "I Anderson" <[email protected]> > wrote: > > >The LED modules you guys are looking at are not really intense enough > >for low level light therapy (LLLT) > > > >The Jameco part has a maximum intensity of 12,000 mcd > > > >The BGgmicro parts have a maximum intensity 7,700 mcd > > Well, what they say is 7,700+ mcd. :) Note the "+" sign. I haven't > actually measured their light output, but I'm guessing that each of > the individual LEDs in the array could be over 5,000 mcd -- they > aren't small indicator-type LEDs. I suppose these BG parts could be > derated since the draw only 90 and 120 mA at 12 volts. This is in > contrast to their small infrared illuminator that appears to draw 3.6 > Amps at 12 volts. > > I have some high power red LEDs sitting around. I'll replace the LEDs > in a small BG unit and measure the difference (I have no idea how to > get a baseline red light sample to calibrate my light meter -- so I > can only measure the difference in power). > > Thanks for the rest of the info. Do you have any references handy > about the studies done on red and infrared light effects on the body? > > -- Dean -- from (almost) Des Moines -- KB0ZDF > > > -- > The silver-list is a moderated forum for discussion of > colloidal silver. > > To join or quit silver-list or silver-digest send an e-mail > message to: > [email protected] -or- [email protected] > with the word subscribe or unsubscribe in the SUBJECT line. > > To post, address your message to: [email protected] > Silver-list archive: http://escribe.com/health/thesilverlist/index.html List maintainer: Mike Devour <[email protected]>
