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resonant scanner(s)

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m.guibhert@aliceadsl.fr m.guibhert@aliceadsl.fr
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resonant scanner(s)

Search the CONFOCAL archive at
http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal

Hello,
I'm looking for information about the physics behind resonant scanner, I can't find more than the pendulm explanation! I saw there is a new resonant scanner integrated in a confocal from NIKON. Are they using the same than the LEICA SP5? I saw they can use it simultaneously with the normal scanner which opens some interesting applications. Did anyone carry out such experiment?

Thanks,
Max

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Craig Brideau Craig Brideau
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Re: resonant scanner(s)

Search the CONFOCAL archive at http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal Resonant scanners are somewhat similar to standard galvos, but they operate at the mechanical resonant frequency of the mirror and shaft assembly.  This allows them to move very quickly, but they are stuck to a single 'repetition rate'.  The mirror typically uses a 'flexture' joint rather than bearings which helps improve speed and reliability.  Basically it's a bendy metal joint that flexes rather than two or more parts rubbing on each other.  This can increase reliability.  The only real limitation to this type of mirror is that it has a fixed speed, so you can't directly adjust pixel dwell time with one of these.
In a typical configuration, one resonant galvo is used to sweep out lines in one direction, while a standard galvo provides displacement in the other, slower, direction.  I.e. resonant scanner on 'X' mirror and non-resonant on 'Y'.

Craig
 

On Sun, Mar 30, 2008 at 12:11 PM, [hidden email] <[hidden email]> wrote:
Search the CONFOCAL archive at
http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal

Hello,
I'm looking for information about the physics behind resonant scanner, I can't find more than the pendulm explanation! I saw there is a new resonant scanner integrated in a confocal from NIKON. Are they using the same than the LEICA SP5? I saw they can use it simultaneously with the normal scanner which opens some interesting applications. Did anyone carry out such experiment?

Thanks,
Max

---------------------- ALICE C'EST ENCORE MIEUX AVEC LA MUSIQUE ! --------------------
Découvrez vite l'offre exclusive ALICE BOX avec ALICE MUSIC, le téléchargement légal et illimité
de plus de 300 000 titres ! En cliquant ici http://alicemusic.aliceadsl.fr
Offre soumise à conditions
Guy Cox Guy Cox
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Re: resonant scanner(s)

Search the CONFOCAL archive at http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal
The other limitation with a resonant scanner is that its motion is
sinusoidal, not linear.  To overcome the distortion this would
produce you can either use just the centre of the scan range
or correct the image in software.
 
                                                                                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)
Electron Microscope Unit, Madsen Building F09,
University of Sydney, NSW 2006
______________________________________________
Phone +61 2 9351 3176     Fax +61 2 9351 7682
Mobile 0413 281 861
______________________________________________
     http://www.guycox.net

 

From: Confocal Microscopy List [mailto:[hidden email]] On Behalf Of Craig Brideau
Sent: Tuesday, 1 April 2008 10:36 AM
To: [hidden email]
Subject: Re: resonant scanner(s)

Search the CONFOCAL archive at http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal Resonant scanners are somewhat similar to standard galvos, but they operate at the mechanical resonant frequency of the mirror and shaft assembly.  This allows them to move very quickly, but they are stuck to a single 'repetition rate'.  The mirror typically uses a 'flexture' joint rather than bearings which helps improve speed and reliability.  Basically it's a bendy metal joint that flexes rather than two or more parts rubbing on each other.  This can increase reliability.  The only real limitation to this type of mirror is that it has a fixed speed, so you can't directly adjust pixel dwell time with one of these.
In a typical configuration, one resonant galvo is used to sweep out lines in one direction, while a standard galvo provides displacement in the other, slower, direction.  I.e. resonant scanner on 'X' mirror and non-resonant on 'Y'.

Craig
 

On Sun, Mar 30, 2008 at 12:11 PM, [hidden email] <[hidden email]> wrote:
Search the CONFOCAL archive at
http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal

Hello,
I'm looking for information about the physics behind resonant scanner, I can't find more than the pendulm explanation! I saw there is a new resonant scanner integrated in a confocal from NIKON. Are they using the same than the LEICA SP5? I saw they can use it simultaneously with the normal scanner which opens some interesting applications. Did anyone carry out such experiment?

Thanks,
Max

---------------------- ALICE C'EST ENCORE MIEUX AVEC LA MUSIQUE ! --------------------
Découvrez vite l'offre exclusive ALICE BOX avec ALICE MUSIC, le téléchargement légal et illimité
de plus de 300 000 titres ! En cliquant ici http://alicemusic.aliceadsl.fr
Offre soumise à conditions


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Hisashi Okugawa Hisashi Okugawa
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Re: resonant scanner(s)

Search the CONFOCAL archive at http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal
Hello Guy,
 
A1 overcome the distortion by optical clock generation method instead of electrical
clock generation method.  You don't have to use software to correct it.
 
Please stop at Nikon booth to discuss the detail at FOM 2008 in Awaji.
 
Hisashi Okugawa
Nikon Corporation
 
----- Original Message -----
Sent: Tuesday, April 01, 2008 3:14 PM
Subject: Re: resonant scanner(s)

Search the CONFOCAL archive at http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal
The other limitation with a resonant scanner is that its motion is
sinusoidal, not linear.  To overcome the distortion this would
produce you can either use just the centre of the scan range
or correct the image in software.
 
                                                                                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)
Electron Microscope Unit, Madsen Building F09,
University of Sydney, NSW 2006
______________________________________________
Phone +61 2 9351 3176     Fax +61 2 9351 7682
Mobile 0413 281 861
______________________________________________
     http://www.guycox.net

 

From: Confocal Microscopy List [mailto:[hidden email]] On Behalf Of Craig Brideau
Sent: Tuesday, 1 April 2008 10:36 AM
To: [hidden email]
Subject: Re: resonant scanner(s)

Search the CONFOCAL archive at http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal Resonant scanners are somewhat similar to standard galvos, but they operate at the mechanical resonant frequency of the mirror and shaft assembly.  This allows them to move very quickly, but they are stuck to a single 'repetition rate'.  The mirror typically uses a 'flexture' joint rather than bearings which helps improve speed and reliability.  Basically it's a bendy metal joint that flexes rather than two or more parts rubbing on each other.  This can increase reliability.  The only real limitation to this type of mirror is that it has a fixed speed, so you can't directly adjust pixel dwell time with one of these.
In a typical configuration, one resonant galvo is used to sweep out lines in one direction, while a standard galvo provides displacement in the other, slower, direction.  I.e. resonant scanner on 'X' mirror and non-resonant on 'Y'.

Craig
 

On Sun, Mar 30, 2008 at 12:11 PM, [hidden email] <[hidden email]> wrote:
Search the CONFOCAL archive at
http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal

Hello,
I'm looking for information about the physics behind resonant scanner, I can't find more than the pendulm explanation! I saw there is a new resonant scanner integrated in a confocal from NIKON. Are they using the same than the LEICA SP5? I saw they can use it simultaneously with the normal scanner which opens some interesting applications. Did anyone carry out such experiment?

Thanks,
Max

---------------------- ALICE C'EST ENCORE MIEUX AVEC LA MUSIQUE ! --------------------
Découvrez vite l'offre exclusive ALICE BOX avec ALICE MUSIC, le téléchargement légal et illimité
de plus de 300 000 titres ! En cliquant ici http://alicemusic.aliceadsl.fr
Offre soumise à conditions


No virus found in this incoming message.
Checked by AVG.
Version: 7.5.519 / Virus Database: 269.22.2/1353 - Release Date: 31/03/2008 6:21 PM


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Checked by AVG.
Version: 7.5.519 / Virus Database: 269.22.2/1353 - Release Date: 31/03/2008 6:21 PM
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