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Article #241Re: Finally found specs on these LEDs
From: Don Klipstein
Date: Mon, 07 Oct 2002 22:37
Date: Mon, 07 Oct 2002 22:37
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In article <0001HW.B9C6E6F901221AB6165FEAC0@news.covad.net>, DaveC wrote: >I found the specs on this LED in Radio Shack's on-line catalog: > ><http://www.radioshack.com/product.asp?catalog%5Fname=CTLG&category%5Fname=CTL >G%5F010%5F012%5F002%5F003&product%5Fid=276%2D086> > >"Typical MCD is 5000. Typical wavelength is 660nm. Size is T3 1/4 or 10mm. >Clear lens color. Viewing angle is 30�. 36mA (max). Typical Voltage is 1.9, >with a maximum voltage of 2.2V" I have a few of these. Beam angle is more like 13 degrees and most of that is nowhere near 5000 mcd. The beam is a ring 13 degrees in outside diameter and maybe 2500 mcd, with a hot spot perhaps 6,000 mcd and a few degrees wide in the hole in the ring. (No actual measurements of mine for mcd figures, but that 13 degree figure is a measured one.) I mention several bright LEDs in: http://www.misty.com/~don/led.html - Don Klipstein (don@misty.com)
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X-Google-Language: ENGLISH,ASCII X-Google-Thread: 112d1e,4ef4c9d4aea85e1f X-Google-Attributes: gid112d1e,public X-Google-Thread: 1131b0,4ef4c9d4aea85e1f X-Google-Attributes: gid1131b0,public X-Google-Thread: 103407,4ef4c9d4aea85e1f X-Google-Attributes: gid103407,public X-Google-Thread: 1118be,4ef4c9d4aea85e1f X-Google-Attributes: gid1118be,public X-Google-Thread: 10d137,4ef4c9d4aea85e1f X-Google-Attributes: gid10d137,public X-Google-ArrivalTime: 2002-10-07 15:47:27 PST Path: arc1-ca.pugleaf.net!archiver1.google.com!news1.google.com!newsfeed.stanford.edu!logbridge.uoregon.edu!news.maxwell.syr.edu!news-xfer.newsread.com!bad-news.newsread.com!netaxs.com!newsread.com!grr!news.misty.com!don From: don@manx.misty.com (Don Klipstein) Newsgroups: sci.electronics.components,sci.electronics.design,alt.engineering.electrical,aus.electronics,sci.electronics.repair Subject: Re: Finally found specs on these LEDs Date: Mon, 7 Oct 2002 22:37:00 +0000 (UTC) Organization: MGT Consulting Lines: 20 Message-ID: <slrnaq43db.53s.don@manx.misty.com> References: <0001HW.B9C26E7400A7161B165FEAC0@news.covad.net> <4ICn9.46867$xI5.9321@sccrnsc02> <0001HW.B9C6E6F901221AB6165FEAC0@news.covad.net> NNTP-Posting-Host: manx.misty.com Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Trace: news.misty.com 1034030220 20783 198.137.254.20 (7 Oct 2002 22:37:00 GMT) X-Complaints-To: abuse@misty.com NNTP-Posting-Date: Mon, 7 Oct 2002 22:37:00 +0000 (UTC) User-Agent: slrn/0.9.6.2 (SunOS)