Re: LED history ?

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Article #9801

#9801

From: leland.m.kornhaus
Date: Tue, 29 Jan 1991 01:56

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My Sharp EL-515 Scientific solar calculator had two mini leds inside it - The
solar cells had to be able to produce much more voltage than the calculator
needed in full daylight in order to deal with the low light situations 
encountered indoors. The two leds in series clamped the voltage and easily
dealt with the low current.  An electrolytic capacitor stored about two seconds
of reserve power.

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Message-ID: <1991Jan29.015616.17822@cbnewse.att.com>

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References: <1991Jan23.052308.12366@uhura.neoucom.EDU> <1991Jan28.031708.6748@cs.uow.edu.au> <14811@uswat.UUCP>

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!pacific.mps.ohio-state.edu!linac!att!cbnewse!leland
From: leland@cbnewse.att.com (leland.m.kornhaus)
Newsgroups: sci.electronics
Subject: Re: LED history ?
Message-ID: <1991Jan29.015616.17822@cbnewse.att.com>
Date: 29 Jan 91 01:56:16 GMT
References: <1991Jan23.052308.12366@uhura.neoucom.EDU> <1991Jan28.031708.6748@cs.uow.edu.au> <14811@uswat.UUCP>
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Organization: AT&T Bell Laboratories
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