FROM: David Lees SUBJECT: Re: found the most powerfull IR LEDs DATE: Wed, 09 Feb 2000 00:59:31 GMT NEWSGROUPS: sci.optics Tal Verker wrote: > > after a little survey I've found the most powerfull IR LEDs > at VISHAY http://www.vishay.de/datasheets/optoelectronics/emitters/ > strange nobody mentioned them before. > > have a nice day. > > Tal Verker Is there some particular LED you are referring to? There are many data sheets there and the 3 that I clicked on just looked like garden variety IR emitters. Perhaps there is a specific device or devices your refer to , but I don't see what the big deal is. Other than the large number of cross posted newsgroups. David Lees FROM: Lou Boyd SUBJECT: Re: found the most powerfull IR LEDs DATE: Wed, 09 Feb 2000 04:53:03 +0000 ORGANIZATION: Fairborn Observatory NEWSGROUPS: sci.optics David Lees wrote: > > Is there some particular LED you are referring to? There are many data > sheets there and the 3 that I clicked on just looked like garden variety > IR emitters. Perhaps there is a specific device or devices your refer > to , but I don't see what the big deal is. Other than the large number > of cross posted newsgroups. > > David Lees I didn't see any on that list over 35 mw. A long way from the "most powerful" even for single chip devices. -- Lou Boyd FROM: Tal SUBJECT: Re: found the most powerfull IR LEDs DATE: Sun, 13 Feb 2000 01:22:24 -0800 ORGANIZATION: http://www.remarq.com: The World's Usenet/Discussions Start Here NEWSGROUPS: sci.optics the parts TSFF5200 and TSFF5400 are rated for 40 mW at 100 mA Tal * Sent from RemarQ http://www.remarq.com The Internet's Discussion Network * The fastest and easiest way to search and participate in Usenet - Free! FROM: Lou Boyd SUBJECT: Re: found the most powerfull IR LEDs DATE: Sun, 13 Feb 2000 14:32:32 +0000 ORGANIZATION: Fairborn Observatory NEWSGROUPS: sci.optics Tal wrote: > > the parts TSFF5200 and TSFF5400 are rated for 40 mW at 100 mA > That's excellent efficiency. Though less efficient, Opto Diode Corp's OD-100 TO-39 single diode is rated 80 mw min, 100 mw typical continuous at 500 ma. Their OD-669 T066 is an array of 9 diodes and gives 390 mw min, 1/2 watt typical at 300 ma (13.5 volts). Both are 880 nm. They cost about $9 and $60 respectively but there's a minimum order. -- Lou Boyd