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Thread: Need Info/Source on Special Polarizd Lens

  1. #1
    Master OptiBoarder Alan W's Avatar
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    Need Info/Source on Special Polarizd Lens

    First: "I'm not crazy"
    Second: These lenses existed until late 60's to early 70's.

    There is/was a polarized lens that was called "neutral Polaroid". It was approximately the color of a brown #1 or less.

    The lens had an extraordianry ability to do what Polaroid does without being dark lenses. They could be worn in broad daylight or indoors. Obviously, they didn't handle the brightest light. But they substantially increased visual comfort under the majority of lighting conditions by eliminating "bright bursting".
    If used today, they could eliminate glare off monitors etc. or any application where reflected glare off external surfaces would be a problem.
    This is not replaceable with AR coating, as AR does not eliminate reflected glare off anything but the actual surfaces it is applied to.

    If anyone knows where these lenses can be found, if at all, I would appreciate your sharing that information. There is a serious industrial sale possible and for accurate information I will JV.

    Thanks oodles,

    Alan

    P.S. I was told KBco had them, but they said their's is 43% density or transmission (forgot to get them to clarify that). That's NOT brown #1 or less regardless.

  2. #2
    Master OptiBoarder Joann Raytar's Avatar
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    Alan,

    Nassau Lens has a neutral brown plano available.

    Speciality Lens Corporation also lists a Brown A in both a fixed color and Polar Active.

  3. #3
    Master OptiBoarder Alan W's Avatar
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    Jo...you are so cool!

    Gracias, gracias, gracias

    I'll email you and thanks infinitesmully!

    Alan

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    Wouldn't a polarized lens have to be rotated 90 degrees in order for it to be affective on monitors and such? In their usual position polarized lenses block glare from horizontal surfaces, so to achieve the same with a vertical surface the positioning of the lens would have to change, wouldn't it?

  5. #5
    Master OptiBoarder Alan W's Avatar
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    To bandk

    While I'm not in a position to argue that point, not that I would, of course, but the dudes who are asking for it already have looked into it. One thing I learned . . . never argue with an engineer . . . especially one who sent up the Hubbel!

  6. #6
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    Alan W

    I know better than to argue with an engineer as well; my dad is one and it's never done me any good!

  7. #7
    That Boy Ain't Right Blake's Avatar
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    A Polarizing filter absorbs the horizontal component of the light reflected off any surface, regardless of how the surface is oriented. Some surfaces absorb the horizontal themselves, while others (such as water or glass) do not, resulting in glare.

    Granted, I haven't tested out this theory, but a polarized lens ought to reduce the glare off a computer screen - without rotating it.

    Blake

  8. #8
    Master OptiBoarder Alan W's Avatar
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    Blake . . . thank heavens you straightened me out!

    Can you imagine having to explain how to rotate a monitor 90 degrees?

    Specially if he's a Russian engineer, which we have a bunch of here.

    "Nyet . .yoo iss crazy amerikin. Why you make me look at side uv monitor? . . iss no pikcher there!"

  9. #9
    Master OptiBoarder Jeff Trail's Avatar
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    Should have argued this one..you would have beat the engineer :-).. he is probably thinking in circular polarization and not linear
    if you are dealing with a reflective surface and the human eye than changing it 90 degree's will not do hoo-haa (is that a word? :-)other than defeat the purpose of the lens (is it brewsters angle? I can't think of it right now, anyone else?) You still want to block the angle of glare at a set axis or degree (depending on you profession on what you feel like calling it) If you were using it as a combined filter in something a long the lines of laser and rebounded light than you could go off into a tangent world of circular polarization but when it comes to human visual system and reflective surfaces.. nope.
    I can delve off into a lot of the theory behind it if you want but I already tend to ramble a bit to much as it is. :-)

    Jeff "engineers should be banned from opticals" Trail :-)
    still just a lowly lab rat..but I'm happy
    Last edited by Jeff Trail; 01-23-2002 at 04:37 PM.

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    Contact Yoshi Tomo Industry Co. Ltd. Japan.
    Attn: Mr. Yoshizawa
    Fax: 011-81-3-3376-1271
    e-mail: yoshtomo@mx6.nisiq.net

    They are the main supplier for the polarized film. Any color as you wish.

    Try the fax first, I don't know how to link the suggested e-mail directly to him.

    Good Luck.

  11. #11
    Master OptiBoarder Alan W's Avatar
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    Thanks for all your info

    I've got to share with you what got all this started. It'll be quick so you can go back to edging lenses . . .

    This yuppy engineer comes in and buys a $295.00 pair of Maui Jims. He loves them on his Cal 36 boat. He wears them into work, Johnson Space Center. He sits in front of the monitor and has an "optigasm!" No glare....nuthin!"
    He tells his buddies. Now it gets serious. It is now occupational eyewear!
    So . . . if you think I'm gonna argue with these dudes . . .
    Uh,uh, uhhhh!
    All I want to do is run down the hall yelling . .

    "I'm rich. I'm rich!"

    Thank you Maui Jim!

    PS. Mother said never to argue with an engineer or a doctor . . . or was it a lawyer?

  12. #12
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    How about Rainbow polarized lens...gray on top pink bottom?
    Great for a few LASIK. SV only is that ok?

    Never argue with an engineer...on full moon or near cusp!

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