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- Path: sparky!uunet!olivea!decwrl!purdue!yuma!longs.LANCE.ColoState.EDU!ae569981
- From: ae569981@longs.LANCE.ColoState.EDU (Alan Erickson)
- Newsgroups: sci.electronics
- Subject: ??optical mouse LED brightness
- Message-ID: <Aug15.015757.40400@yuma.ACNS.ColoState.EDU>
- Date: 15 Aug 92 01:57:57 GMT
- Sender: news@yuma.ACNS.ColoState.EDU (News Account)
- Reply-To: ae569981@longs.LANCE.ColoState.EDU (Alan Erickson)
- Organization: Engineering College, Colorado State University
- Lines: 25
-
-
- Hi, all!
-
- A simple question(?): I'm sitting in front of a Sparc IPX;
- I can produce some heavy spots in the eyes by looking
- at the optical mouse LED. How in the world do they
- get an LED that bright?
-
- Is it simply a "super-bright" LED?
-
- Is it a high-current, low duty cycle pulse?
- If so, can this be done with any
- LED as long as you mind the average power dissipation rating?
- There are maximum forward current ratings; are these only
- applicable to continuous-duty operation?
- If operated in this way, is the expected device
- lifetime affected?
- If operated in this way, how does power dissipated relate to
- power output (does the device become less/more efficient)?
-
- --------------------------------------------------
- Alan Erickson, Perpetual Student
-
- erickson@jupiter.nmt.edu
- --------------------------------------------------
-