Comments on: Emissivity Coefficients of Some Common Materials http://spectralemissivity.com/ref/emissivity-coefficients-of-some-common-materials/ About data, methods and uses in thermal radiation thermometry & thermography Sun, 09 Oct 2011 15:48:02 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Administrator http://spectralemissivity.com/ref/emissivity-coefficients-of-some-common-materials/#comment-36 Administrator Sun, 09 Oct 2011 15:48:02 +0000 http://spectralemissivity.com/?p=152#comment-36 Not quite certain what you mean as a transmitter of Infrared Radiation. Do you seek a specific portion of the Infrared, or the whole thing (It's relatively wide portion of the EM spectrum)? If you are seeking a window material that will meet your other conditions, the most complete technical resource on the web, one that I admire and think is perhaps the best so far, is on the website <a href="http://refractiveindex.info/" target="_blank" rel="nofollow">RefractiveIndex.INFO </a>. While this is nominally a site with a physics slant, it includes a transmittance calculator to enable one to consider a very wide variety of materials available. You'll have to check the other properties separately. If you just want a selection of commercially available infrared windows, one can do a Google search and wade trough all the commercial offerings or, if that is not quite what you seek, check the available technical data from some of the optics makers around the world, like <a href="http://www.crystran.co.uk/" target="_blank" rel="nofollow">www.crystran.co.uk</a> Personally, if you are considering something really inexpensive, look at some of the plastic materials available; most will fit your other specs. Not quite certain what you mean as a transmitter of Infrared Radiation. Do you seek a specific portion of the Infrared, or the whole thing (It’s relatively wide portion of the EM spectrum)?

If you are seeking a window material that will meet your other conditions, the most complete technical resource on the web, one that I admire and think is perhaps the best so far, is on the website RefractiveIndex.INFO . While this is nominally a site with a physics slant, it includes a transmittance calculator to enable one to consider a very wide variety of materials available. You’ll have to check the other properties separately.

If you just want a selection of commercially available infrared windows, one can do a Google search and wade trough all the commercial offerings or, if that is not quite what you seek, check the available technical data from some of the optics makers around the world, like http://www.crystran.co.uk

Personally, if you are considering something really inexpensive, look at some of the plastic materials available; most will fit your other specs.

]]> By: Lars Enström http://spectralemissivity.com/ref/emissivity-coefficients-of-some-common-materials/#comment-35 Lars Enström Mon, 03 Oct 2011 14:46:31 +0000 http://spectralemissivity.com/?p=152#comment-35 Hi I am trying to find out what material to use as a transmitter of infrared radiation, with the limitations that the surface shall never be allowed to be hotter than 88 degrees Celsius, that the surface at such temperature shall not cause damage to humans if touched and that it will have a maximum thickness of 4 mm. When I read all of what you write and refer to I understand that it is complex but do I understand fully, no I do not and can I answer my question, no Can you help me? Best Regards Lars Enström Hi
I am trying to find out what material to use as a transmitter of infrared radiation, with the limitations that the surface shall never be allowed to be hotter than 88 degrees Celsius, that the surface at such temperature shall not cause damage to humans if touched and that it will have a maximum thickness of 4 mm.
When I read all of what you write and refer to I understand that it is complex but do I understand fully, no I do not and can I answer my question, no
Can you help me?
Best Regards
Lars Enström

]]> By: IRWeb INFO » Interesting Car Uses for an Infrared Thermometer http://spectralemissivity.com/ref/emissivity-coefficients-of-some-common-materials/#comment-34 IRWeb INFO » Interesting Car Uses for an Infrared Thermometer Wed, 10 Dec 2008 04:47:17 +0000 http://spectralemissivity.com/?p=152#comment-34 [...] as described (along with our perennial rant about why the term ‘Spectral” is key) in a recent article in our companion website [...] [...] as described (along with our perennial rant about why the term ‘Spectral” is key) in a recent article in our companion website [...]

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