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nemo
sage
Reged: 06/09/03
Posts: 388
Loc: Eugene,Oregon
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 Folks,
I seem to remember a while ago reading about some sort of coating or cover that is used by the military on binoculars. This cover protects some one looking through binoculars from being blinded by a laser. Apparently this has happened on boarders where there is a military presence with observers. The other side has used low power lasers to shot into the objective end of the binoculars used by the observing party causing permanent eye damage. Is this some sort of urban bino myth or is it true? If so what is the mechanism used to protect the observer and at the same time allow continued use of the binocular? I realize that this is a little off topic for an Astro-bino forum but I am very curious. As usual any input would be most appreciated.
R/S,
Dan
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"Humility is not thinking less of your self-it is about thinking of yourself less."
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KennyJ
Reged: 04/27/03
Posts: 10163
Loc: Lancashire UK
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Dan
The info on this site suggests this is no myth.
http://www.pyser-sgi.com/product.asp?ParentID=255
Incidentally --I've never heard of these Francis Barker binoculars before.
Has anyone else I wonder ?
Regards --Kenny.
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If everyone is thinking the same thing , no-one is thinking - General George S.Patton
Zeiss 7 x 42 BGAT
Captain's Helmsman 7 x 50
Nikon 10 x 42 Superior E
Swift Audubon Kestrel 10 x 50
Helios 15 x 70 Observation
Strathspey 20 x 90
Televue 76 APO
Zeiss 85 Diascope
Helios 102 f5 refractor
Various eyepieces barlows tripods mounts etc.
Panasonic Lumix DMC - TZ5 digital camera
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Don25
professor emeritus
Reged: 10/20/03
Posts: 701
Loc: Delaware, U.S.A.
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I know back a few years ago, there was a guy in the U.S military (Navy, I think) who claims he was partially blinded by a Russian laser that was aimed at his face. I can't remember the details, but evidently the Russians felt he was spying, and lased him. I never heard the outcome as he was seeking damages. So I believe that it is not an Urban Legend about this topic.
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Anonymous
Unregistered
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Quote:
The info on this site suggests this is no myth.
http://www.pyser-sgi.com/product.asp?ParentID=255
That page mentions the "ISK-167 laser protection." I found the specs fror the ISK-167 filter here (PDF file):
http://www.isuzuglass.com/IR-absorb(ISK).PDF
Apparently it's just an IR block filter that blocks infrared laser.
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nemo
sage
Reged: 06/09/03
Posts: 388
Loc: Eugene,Oregon
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Ken,Kenney and Don,
Thank you all for the information and links.
Dan
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"Humility is not thinking less of your self-it is about thinking of yourself less."
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craig_oz_land
sage
Reged: 01/21/04
Posts: 343
Loc: Sydney, Australia
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I read that the Chinese have developed a wide band or variable frequency laser which renders most filters useless. The current trend is towards indirect view through CCD. Better to lose a CCD than your eyes.
No, it is not an urban legend. The military do use it.
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Takahashi FS-102
Fujinon FMT-SX2 7x50
Takahashi Astronomer 22x60
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