[time-nuts] Time shown as two horizontal bars

[Don Latham]

Got that, but i think two separate lines were required, one for hours
and one for minutes?
Don


Chris Albertson
> On Tue, Apr 2, 2013 at 1:42 AM, Don Latham <djl at montana.com> wrote:
>> So all you need is one spinning mirror and two laser pointers side by
>> each? one track for hours and one for minutes.
>
> No,  Just one laser pointer.  It you want two dots you turn it one
> twice per scan.  If you want 100 dots you turn in one 100 times per
> scan.   Feed constant DC current to the laser and you get a solid line
> all the way across.  So basically you turn if off when you don't that
> part of the line to show.
>
> Laser printers do the exact same thing but with much greater precision.
>
> You think of this like a CRT tube but with a laser rather then an
> electron beam.  You can draw just about anything on a CRT.  The trick
> is to keep the beam modulation in sync with the scan mirror the scan
> motor will make a pulse you can use for that.
>
> --
>
> Chris Albertson
> Redondo Beach, California
> _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to
> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
>


-- 
"Neither the voice of authority nor the weight of reason and argument
are as significant as experiment, for thence comes quiet to the mind."
De Erroribus Medicorum, R. Bacon, 13th century.
"If you don't know what it is, don't poke it."
Ghost in the Shell


Dr. Don Latham AJ7LL
Six Mile Systems LLP
17850 Six Mile Road
POB 134
Huson, MT, 59846
VOX 406-626-4304
www.lightningforensics.com
www.sixmilesystems.com