http://confocal-microscopy-list.275.s1.nabble.com/Out-of-Office-autoreply-courtesy-tp6917499p6933148.html
whereas the one with 0.61 is the radius of the Airy disk, i.e. the distance
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>
> Guy (and list), in a couple of super-resolution talks I've attended they
> were using 0.51 instead of 0.61 for the constant. Do you know the rationale
> behind this?
> Thanks, Brian
>
> Brian Armstrong PhD
> Light Microscopy Core
> Beckman Research Institute
> 1450 East Duarte Rd
> Duarte, CA 91010
> 626-256-4673 x62872
>
>
http://www.cityofhope.org/SharedResources/LightMicroscopy/LightMicroHome.htm>
>
> -----Original Message-----
> From: Confocal Microscopy List [mailto:
[hidden email]]
> On Behalf Of Guy Cox
> Sent: Wednesday, October 26, 2011 2:46 AM
> To:
[hidden email]
> Subject: Airy Units - was: RE: "Out of Office autoreply" courtesy
>
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>
> You are right, it has been totally drowned out!
>
> The Airy unit is defined by the size of the Airy disk, that is the size
> of the disk representing the image of a point object. Airy was an
> astronomer and thus derived it by reference to stars (which, though
> huge, are so far away that they appear as point objects). John Strutt,
> Lord Rayleigh, proposed a general resolution criterion that two objects
> can be considered resolved if the maximum of one Airy disk lies on the
> first minimum of the other. This criterion, the radius of the central
> disk (ignoring surrounding haloes) is given by r = 0.61 lambda /
> NA, where lambda is the wavelength of the light being used.
>
> Guy
>
>
> Optical Imaging Techniques in Cell Biology
> by Guy Cox CRC Press / Taylor & Francis
>
http://www.guycox.com/optical.htm> ______________________________________________
> Associate Professor Guy Cox, MA, DPhil(Oxon)
> Australian Centre for Microscopy & Microanalysis,
> Madsen Building F09, University of Sydney, NSW 2006
>
> Phone +61 2 9351 3176 Fax +61 2 9351 7682
> Mobile 0413 281 861
> ______________________________________________
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>
> -----Original Message-----
> From: Confocal Microscopy List [mailto:
[hidden email]]
> On Behalf Of Peter G. Werner
> Sent: Sunday, 23 October 2011 4:55 AM
> To:
[hidden email]
> Subject: Re: "Out of Office autoreply" courtesy
>
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> To join, leave or search the confocal microscopy listserv, go to:
>
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>
> And I hate to point this out, but the question I originally asked
> (concerning the definition of Airy Units) has been drowned out by all
> the
> commentary about the "Out of Office autoreply" that my initial email
> generated.
>
> If nobody has an answer to the question, no worries, but I'd hate to see
> the
> topic get lost under the weight of discussion of listserv function.
>
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