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PostPosted: 10 Feb 2005, 23:12 
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Joined: 05 Oct 2002, 14:22
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We are in the middle of at leaste round two of commercial/private pilots getting painted with ground based LASERs and causeing eye damage or temporary disturbances. Military helmet visors have add-on filters to prevent this but I dont know how many freqs a particular filter covers. Since we will never get rid of all the hand held pointing and marking LASERs would it be effective to distribute "Oaklys" with a LASER filter built into to them for the most popular freqs?

"We sleep safely in our beds because rough men stand ready in the night to visit violence on those who would harm us". George Orwell

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PostPosted: 11 Feb 2005, 00:47 
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LOL HUH, Its just polycarbonite dude, No pilots have a laser Safe IR Shield.

"RickUSN-

That was intelligent and useful Mudd.

But it certainly is what Ive come to expect.

Mindless babbling with no intent to either enlighten or inform.


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PostPosted: 11 Feb 2005, 01:37 
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Dude they have had LASER filters for like 10 years, kinda like "tear-offs" they go over the regular visor.

"We sleep safely in our beds because rough men stand ready in the night to visit violence on those who would harm us". George Orwell

Fighting For Justice With Brains Of Steel !
<img src="http://www.fas.org/man/dod-101/sys/ac/atengun2X.GIF" border=0>

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PostPosted: 11 Feb 2005, 08:05 
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Joined: 23 Oct 2002, 20:45
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<img src=newicons/Whatever_anim.gif border=0 align=middle> I havnt Seen anything, Or heard anything closely to be related to any IR source Protection. I flew in Both Naval and USAF AViation. Their is absolutely nothing related to laser protection. UV protection Yes (provided your flying wiith a Day visor, If not its a Clear. (i prefered Sunglasses)


Maybe the Army Helicopter Crews Wear Something, So I will ask my younger Brother That Commands a mixed Kiowa/Apache Cav Company.

Oakly also does not Provided anything That is Issued for the HGU-55.

The US Army does use Tear Aways. Most of Naval Aviation has now Converted to the USAF Type Helmet.

Boomer IF you Come across anything related to this in Technical Document. Id like to see it.

"RickUSN-

That was intelligent and useful Mudd.

But it certainly is what Ive come to expect.

Mindless babbling with no intent to either enlighten or inform.


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PostPosted: 11 Feb 2005, 09:49 
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Joined: 05 Oct 2002, 14:22
Posts: 5353
Location: Missouri
The "Oaklys" referance was just me refering to a wrap around sunglasses type of device, something comfortable to wear that still offers full protection. Turns out somebody DOES make something like that already

Took like 5 seconds on Google, this one specifically questions wheather these filters affect color vision:

<BLOCKQUOTE id=quote><font size=1 face="Verdana, Arial, Helvetica" id=quote>quote:<hr height=1 noshade id=quote> Aircrew Visors and Color Vision Performance: A Comparative and Preliminary Pilot Study Analysis
Paul Albert Young, M.D., M.P.H., Jose Perez-Becerra, M.D., and Douglas Ivan, M.D.
Aviat Space Environ Med 2000; 71:1081-92
Abstract
Background: A very important aspect of visual performance to consider, for present and future recommendations regarding aircrew visors, concerns their impact on color vision. The literature has remained mostly inconclusive with respect to the human perceptual process of colors during actual mission employment. Objective: This study uses active duty military aircrews to provide objective and valuable information on the effects of Short Wavelength Absorbing Filters (SWAFs), such as the High Contrast Visor (HCV), and some selected waveband type Laser Eye Protection (LEP) visors on color vision. It provides a direct comparison of several current and proposed aircrew eye protective visors with respect to their effects on color vision. The data analyzed in this study will also be used to support a recommendation regarding a new optimal visor for aircrew wear during air to air (and ground) engagements, for sun protection, and possible visual enhancement in order to improve user compliance. Methods: Seven volunteers on active flying status each underwent comprehensive color vision testing with and without seven of the U. S. Air Force's (USAF's) current or proposed aircrew visors/filters. Spectral transmissions of these visors/filters were obtained to identify and determine their individual characteristics which included their ability to induce acquired color vision decrements in "color normal" individuals. Results: The widely utilized USAF HCV significantly degraded color vision more than luminosity matched neutral density visors. <b>Abrupt color vision decrements for specifically fielded LEP visors were also noted</b>. Their objective data supported theoretical and speculated color vision effects. Even though low transmittance neutral density visors did have some effect on color vision, decrement severity was not considered significant enough to affect overall performance during color vision testing. Conclusions and Discussion: Because of their ability to significantly affect color vision, concerns regarding the use of HCV and LEP visors should entail age, baseline color vision, environmental, and mission factors. Further testing should be done to evaluate the definitive effects that these visors actually have on the recognition of color symbology of Multi Function and Electronic Flight Information Displays. Findings in this study also support theoretical opinions that encourage the fielding of a neutral density filter (mildly tinted) with an overall transmission of 25%. Its use by flyers during low and bright illuminant conditions may greatly enhance visual performance by encouraging wearer compliance while allowing colors to be perceived normally. <hr height=1 noshade id=quote></BLOCKQUOTE id=quote></font id=quote><font face="Verdana, Arial, Helvetica" size=2 id=quote>


This one is a small chunk from a larger paper, it was apparently a testimonial before a congressional commitee of some sort (it's too big and long winded to post entirely here). It talks about protection for both sensors and aircrews from LASERs:

<BLOCKQUOTE id=quote><font size=1 face="Verdana, Arial, Helvetica" id=quote>quote:<hr height=1 noshade id=quote> Aircraft laser detection is provided by the AN/AVR-2A(V) Laser Detection Set. It is designed to detect, characterize by type, and report visually and audibly the laser threat. Sight and sensor protection is provided by the application of coatings and addition of filters into the optical paths of the sights to prevent laser damage.<b> Protection to aircrew members is provided by a combination of <u>laser spectacles</u> and laser visors integrated into the flight helmet</b>. We have identified a requirement for 3,009 systems of which 990 have been procured. Fielding to Force Package 1 requires 1,576 systems. This program is unfunded in the FY00 budget.

Laser protection for flight crews in the future will be integrated into the Air Warrior ensemble. The ensemble will include the Modular Integrated Helmet Display System, Combat Identification, Nuclear, Biological, and Chemical (NBC) protection, and laser and ballistic protection. The goal is to ensure aviators and aircrew members are able to safely operate the aircraft in any future environment.

The current programs to improve the laser visor capability are the Joint Army/Navy Advanced Laser Eye Protection Visor (JALEPV), and the developing Tri-Service Agile Laser Eye Protection program. Research, Development, Test, and Evaluation (RDT&E) is complete, but procurement is unfunded. The Agile Laser Eye Protection program will provide cross spectrum laser protection. The Army is not currently providing funds to this program. RDT&E is funded by the Navy and Air Force.

<hr height=1 noshade id=quote></BLOCKQUOTE id=quote></font id=quote><font face="Verdana, Arial, Helvetica" size=2 id=quote>

I have another one, but it was a PDF saved as html and is kind of a mess. It is a request for funding to improve what is already available. Most of these seem to be dated around 2000.

"We sleep safely in our beds because rough men stand ready in the night to visit violence on those who would harm us". George Orwell

Fighting For Justice With Brains Of Steel !
<img src="http://www.fas.org/man/dod-101/sys/ac/atengun2X.GIF" border=0>

_________________
The only time you have too much fuel is when you're on fire.
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PostPosted: 11 Feb 2005, 09:58 
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Joined: 05 Oct 2002, 14:22
Posts: 5353
Location: Missouri
Google for "Laser eye protection" and you'll find lots of stuff. A lot of it is in referance to ground troops but I started wondering about it again back when I heard the LASER ranger on Fulcrum and Flanker were not "eye safe". Who needs to destroy an aircraft when you can just blind the pilot before the break?

The current spate of LASER incidents with commercial pilots brought it back to the front of my lil bwain lol

"We sleep safely in our beds because rough men stand ready in the night to visit violence on those who would harm us". George Orwell

Fighting For Justice With Brains Of Steel !
<img src="http://www.fas.org/man/dod-101/sys/ac/atengun2X.GIF" border=0>

_________________
The only time you have too much fuel is when you're on fire.
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