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Current group: rec.guns
Trijicon reflex polarizing filter, how does it work?
| dg | | RCM | | Joe Sirotnak | | Dave Munzuno | | Bart B. | | Julie |
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| | From: | dg | | Subject: | Trijicon reflex polarizing filter, how does it work? | | Date: | Sun, 23 Jan 2005 13:28:40 +0000 (UTC) |
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 | I was just going through some stuff and came across the polarizing filter
for my reflex II sight. This little thing is just amazing. If you haven't
seen one, its a little glass (plastic?) lensed and aluminum screw on adapter
that screws to the front of the sight. When you spin the outer ring on the
filter the glass seems to change how much light goes through, from almost
totally clear to almost totally opaque. Does anybody know the basics of how
it works?
I understand that Trijicon recommends them if you use a flashlight on your
weapon, which I do not.
Thanks,
--Dan
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| | From: | RCM | | Subject: | Re: Trijicon reflex polarizing filter, how does it work? | | Date: | Mon, 24 Jan 2005 05:54:36 +0000 (UTC) |
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| dg wrote:
> ...
Not to sound like a smart a... do "polarizing filter" in Google and come back a TELL
us after reading the 450,000 hits.
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| | From: | Joe Sirotnak | | Subject: | Re: Trijicon reflex polarizing filter, how does it work? | | Date: | Mon, 24 Jan 2005 05:54:21 +0000 (UTC) |
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| There are two polaroid lenses, one of which rotates. Both lenses have tiny
lines photo etched into the glass. When the lines in both lenses are
parallel, little light is blocked. When the lines are perpendicular, almost
all light is blocked. Interesting Quantum physics experiment is to introduce
a third lense between the two lenses when they are at 90 degree orientation.
If the third (middle) lense is at 45 degree orientation to the other lenses,
light can again pass through.
See; http://www.geneticengineering.org/evolution/mcfaddenc8.html
Joe Sirotnak
"dg" wrote in message
news:ct08q8$8vf$1@grapevine.wam.umd.edu...
> ...
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| | From: | Dave Munzuno | | Subject: | Re: Trijicon reflex polarizing filter, how does it work? | | Date: | Mon, 24 Jan 2005 05:54:02 +0000 (UTC) |
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"dg" wrote in message
news:ct08q8$8vf$1@grapevine.wam.umd.edu...
# I was just going through some stuff and came across the polarizing filter
# for my reflex II sight. This little thing is just amazing. If you
haven't
# seen one, its a little glass (plastic?) lensed and aluminum screw on
adapter
# that screws to the front of the sight. When you spin the outer ring on
the
# filter the glass seems to change how much light goes through, from almost
# totally clear to almost totally opaque. Does anybody know the basics of
how
# it works?
#
# I understand that Trijicon recommends them if you use a flashlight on your
# weapon, which I do not.
#
# Thanks,
# --Dan
I think this page describes the weapon you are thinking of:
http://www.thegunzone.com/fff-bourne.html
A Walther P5C.
NN
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| | From: | Bart B. | | Subject: | Re: Trijicon reflex polarizing filter, how does it work? | | Date: | Mon, 24 Jan 2005 05:55:07 +0000 (UTC) |
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| Check this out:
http://www.colorado.edu/physics/2000/polarization/polarizationI.html
It's a pretty good explanation of how they work.
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| | From: | Julie | | Subject: | Re: Trijicon reflex polarizing filter, how does it work? | | Date: | Mon, 24 Jan 2005 05:54:00 +0000 (UTC) |
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| dg wrote:
# I was just going through some stuff and came across the polarizing filter
# for my reflex II sight. This little thing is just amazing. If you haven't
# seen one, its a little glass (plastic?) lensed and aluminum screw on adapter
# that screws to the front of the sight. When you spin the outer ring on the
# filter the glass seems to change how much light goes through, from almost
# totally clear to almost totally opaque. Does anybody know the basics of how
# it works?
Two polarizing filters rotated 90-degrees from each other are essentially
opaque. A 0 and 180-degrees, they are transmissive. Obviously your sight
filter is actually 2 filters, one of which you rotate to control transmissivity.
There are plenty of sites on the web that talk about the fundamental operation
of a polarizing filter. It is pretty basic technology, give Google a try and
you should come up w/ more than enough information.
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