home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: misc.emerg-services
- Path: sparky!uunet!europa.asd.contel.com!howland.reston.ans.net!wupost!zaphod.mps.ohio-state.edu!news.acns.nwu.edu!network.ucsd.edu!munnari.oz.au!uniwa!cujo!cc.curtin.edu.au!zrepachol
- From: zrepachol@cc.curtin.edu.au
- Subject: Re: LIGHT BARS 12/08/92 17: 45:30 ALL
- Message-ID: <1992Dec14.044427.1@cc.curtin.edu.au>
- Lines: 26
- Sender: news@cujo.curtin.edu.au (News Manager)
- Organization: Curtin University of Technology
- References: <9212092031.AA25018@Princeton.EDU> <+jd2t1n@rpi.edu>
- Date: Sun, 13 Dec 1992 19:44:27 GMT
-
- In article <+jd2t1n@rpi.edu>, myersj@rs6401.ecs.rpi.edu (Jeffrey William Myers) writes:
- > monty@VNET.IBM.COM writes:
- ...
- > As far as strobes, I do not recommend the use of strobes. The light emitted
- > is to concentrated and is of too short a duration and can cause the pupils
- > to constrict (as in daylight), thus blinding other drivers at night. The
- > rotating lights are slower and usually less intensive as strobes, reducing
- > blinding effects at night. During the daytime I have found it more difficult
- > to pick up strobes than rotators (although red becomes washed out in daylight).
- >
- > When I can find it, I'll post a reference article title by Dr. Solomon, which
- > discusses the merits of warning lights, both strobes and rotators.
- >
-
- This depends on the discharge time of the strobe. A very short ( < 1msec )
- flash of moderate energy is very attention getting. Longer ( 2-4msec ) flashes
- can be real eye-scorches. Strobes can also be extremely dangerous to the eyes
- of people close to the light.
-
- I have found a combination of flash and light to be most efective. The flash
- gets your attention, the light enables yopu to see what it was.
-
- Could you post a summary of the Solomon article as well?
-
- ~Paul
-
-