Loralei Dewe-3 |
*****
To join, leave or search the confocal microscopy listserv, go to: http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy Post images on http://www.imgur.com and include the link in your posting. ***** Why reinvent the wheel when a Hamamatsu Gemini will do the trick perfectly? Loralei Dewe Chrysalis Innovations Hamamatsu distributor On Jul 31, 2017 2:36 PM, "S Ram" <[hidden email]> wrote: > ***** > To join, leave or search the confocal microscopy listserv, go to: > http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy > Post images on http://www.imgur.com and include the link in your posting. > ***** > > Hi Adam, > In my experience, mechanical stability is another issue that you need to > take into account. How are you planning to mount and adjust the > dichorics/mirrors? When we built ours (which was years ago), we had to > contend with whatever micro-optomechanical mounts we could get and they do > drift with time. Things could have improved and you want to look for > mounts/holders that have ultralow or zero drift. > > > > On Mon, Jul 31, 2017 at 1:32 PM, Michael Giacomelli <[hidden email]> wrote: > > > ***** > > To join, leave or search the confocal microscopy listserv, go to: > > http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy > > Post images on http://www.imgur.com and include the link in your > posting. > > ***** > > > > Hi Adam, > > > > The main issue we have flatness, since even very flat ones will introduce > > geometric distortion. Rather than use the high grade ones, we just > > calibrate it out by imaging a grid target with white light and then using > > imagej to compute the unwarp matrix. Takes less than 100 ms per > megapixel > > per core to unwarp two channels in matlab this way. Make sure you have > > tip/tilt control somewhere for the dichroics as well, otherwise centering > > the cameras is very painful. > > > > Christopher Rowlands, who I think you met, also had a clever design at > SPIE > > this year for 6 (or maybe 8?) channel detection that balanced distortion > > between channels to minimize the total error. Not sure if you need > > something like that, but you could run your design by him. > > > > Mike > > > > On Mon, Jul 31, 2017 at 4:11 PM, Adam Glaser <[hidden email]> > > wrote: > > > > > ***** > > > To join, leave or search the confocal microscopy listserv, go to: > > > http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy > > > Post images on http://www.imgur.com and include the link in your > > posting. > > > ***** > > > > > > Hello everyone, > > > > > > I was wondering if anyone could offer advice on building an in-house > > image > > > splitter for microscopy. > > > > > > We are hoping to build one to split a rectangular ROI vertically into > 2-4 > > > colors. The design seems straightforward, similar to the schematic of > > the > > > Optosplit by Andor http://www.andor.com/scientific-cameras/multi- > > > wavelength-imaging/optosplit-iii#prettyPhoto[pi_gal]/1/. > > > > > > Are there any non-obvious factors to consider when building? We will > be > > > using 2 identical tube lenses, the first to image an adjustable slit > for > > > creating the cropped rectangular ROI, the second to re-focus onto our > > sCMOS > > > camera, and super resolution imaging grade dichroics from Semrock. > > > > > > Thanks, > > > Adam > > > > > > |
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