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G8MNY  > TECH     17.01.19 08:00l 44 Lines 1650 Bytes #9 (0) @ WW
BID : 54965_GB7CIP
Subj: Infra Red Camera Trick
Path: ED1ZAC<ED1ZAC<GB7CIP
Sent: 190117/0658Z @:GB7CIP.#32.GBR.EURO #:54965 [Caterham Surrey GBR]
From: G8MNY@GB7CIP.#32.GBR.EURO
To  : TECH@WW

By G8MNY                                 (New Mar 15)
(8 Bit ASCII graphics use code page 437 or 850, Terminal Font)
Years a go I did an IR camera trick with on old low light camera that could see
IR.
旼컴컴컴컴커
           旼컴컴__           -----------------
          쳐     __||        |  Infra   /~~~\  |
           읕쩡쩡             |  Red    쿲lass |        \_/   Normal
             /\               |  text    \___/  |       ( )  Incandecent
읕컴컴컴컴켸  /  \ Rotatable    -----------------        /~\   Light Source
  TV        IR      Poloroid    Nearly Black  Heatshield
Monitor   Camera    Filters     Purple Box    Glass Disk

With the above set up the polorize sunglass filters, can let in, or null out
visable light. So you either, see the black box, or see through it!

旼컴컴컴컴커
 複複複複  旼컴컴__           -----------------
 栢栢栢栢 쳐     __||        |  Infra   /~~~\  |
 栢栢栢栢  읕쩡쩡  Filter     |  Red    쿲lass |
 賽賽賽賽    /\    set for    |  text    \___/  |
읕컴컴컴컴켸  /  \   daylight   -----------------

When you see through it, you read the Infra Red text pressed on the inside of
the box & a floating back disk.

旼컴컴컴컴커
넬컴컴컴컴엿 旼컴컴__           -----------------
납Infra蔔屛쳐     __||        |  Infra   /~~~\  |
납Red  賞參 읕쩡쩡  Filter set |  Red    쿲lass |
냅컴컴컴컴冒   /\    for no     |  text    \___/  |
읕컴컴컴컴켸  /  \   daylight   -----------------


Then opening the Box you then see a clear glass disk.


Why don't U send an interesting bul?

73 De John, G8MNY @ GB7CIP


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