Date: Fri, 3 Feb 2012 20:54:51 -

Author: --- Paul Nord

Subject: Re: Simple Schlieren photography?

Post:


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Thanks for the replies.

I figured something out:
http://www.youtube.com/watch?v=3DnUX0VpX7qfk

It's more impressive in person.

Paul

On Feb 2, 2012, at 2:46 PM, Paul Nord wrote:

> Something like this:
> http://www.cs.ubc.ca/nest/imager/tr/2011/LFBOS/
>=20
> I guess it's really "Background Oriented Schlieren" optics.
>=20
> Paul
>=20
> On Feb 2, 2012, at 2:27 PM, Zani, Gerald wrote:
>=20
>> Paul,
>>=20
>> Go here:
>>=20
>> http://www.wesleyan.edu/physics/fun_stuff/index.html
>>=20
>> and scroll down to play the movie called Schlieren Optics, by W.R. - =
Jerry
>>=20
>> On Thu, Feb 2, 2012 at 3:10 PM, Qurratulain Thakur =
wrote:
>> This is probably not what you were looking for but a friend of mine =
recently posted a video on Schlieren images on his website.
>> http://talkingphysics.wordpress.com/2012/02/01/schlieren-imaging/
>>=20
>> Regards,
>> Qurrat Thakur
>> Lab Technician - Physics
>> Austin Community College
>> Cypress Creek Campus
>>=20
>> On Thu, Feb 2, 2012 at 2:00 PM, Paul Nord =
wrote:
>> I remember a simple technique being discussed for doing Schlieren =
photography. It involved using a background with a stripe pattern =
adjusted to be at a distance which matched the pixel width of your =
digital camera. Small angle changes in the path of light from the =
background, which can be caused by pressure/temperature differences in =
the air, cause light to bend into the "dark" pixels.
>>=20
>> I've lost the link. Does anyone remember that discussion? There was =
a cool web page on the topic.
>>=20
>> I'm finding this related info:
>> http://people.rit.edu/andpph/text-schlieren-focus.html
>>=20
>> But that's not the link I remember.
>>=20
>> Paul
>>=20
>>=20
>>=20
>>=20
>>=20
>> --=20
>> Qurrat Thakur
>> Science Lab Technician - Physics
>> Austin Community College
>> 1555 Cypress Creek Road
>> Cedar Park, TX 78613
>> 512-223-2981
>> www.austincc.edu/physcyp
>>=20
>>=20
>>=20
>>=20
>>=20
>> --=20
>> Gerald Zani
>> Demonstration Manager
>> Physics
>> Brown University
>> (401) 863-3964
>>=20
>=20


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http://www.youtube.c=
om/watch?v=3DnUX0VpX7qfkIt's more =
impressive in =
person.PaulOn Feb 2, =
2012, at 2:46 PM, Paul Nord wrote:Something like this:http://www.cs.ubc=
.ca/nest/imager/tr/2011/LFBOS/I guess it's =
really "Background Oriented Schlieren" =
optics.PaulOn Feb 2, =
2012, at 2:27 PM, Zani, Gerald wrote:Paul,Go here:http://www.w=
esleyan.edu/physics/fun_stuff/index.htmland scroll down to =
play the movie called Schlieren Optics, by W.R. - Jerry

On Thu, Feb 2, 2012 at 3:10 PM, =
Qurratulain Thakur =
wrote:

This is probably not what you =
were looking for but a friend of mine recently posted a video on =
Schlieren images on his website.http://talkingphysics.wordpress.com/2012/02/01/schlieren=
-imaging/


Regards,Qurrat ThakurLab Technician - PhysicsAustin =
Community CollegeCypress Creek CampusOn Thu, Feb 2, 2012 at 2:00 PM, Paul Nord wrote:


I remember a simple =
technique being discussed for doing Schlieren photography. It =
involved using a background with a stripe pattern adjusted to be at a =
distance which matched the pixel width of your digital camera. =
Small angle changes in the path of light from the background, =
which can be caused by pressure/temperature differences in the air, =
cause light to bend into the "dark" pixels.




I've lost the link. Does anyone remember that discussion? =
There was a cool web page on the topic.

I'm finding this related info:
http://people.rit.edu/andpph/text-schlieren-focus.html

But that's not the link I remember.

Paul


-- =
Qurrat =
Thakur


Science Lab Technician - =
PhysicsAustin Community College


1555 Cypress Creek =
RoadCedar Park, TX 78613512-223-2981


www.austincc.edu/physcyp



-- Gerald =
ZaniDemonstration ManagerPhysicsBrown University(401) =
863-3964
=
=

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