Difference between revisions of "DIY microscopy"
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[[File:amoebae_dark.gif|frame|none|dark-field image sequence (4 sec) of an amoebae recorded on a modified webcam]] | [[File:amoebae_dark.gif|frame|none|dark-field image sequence (4 sec) of an amoebae recorded on a modified webcam]] | ||
[[File:amoebae_bright.gif|frame|none|bright-field image sequence (4 sec) of an amoebae recorded on a modified webcam]] | [[File:amoebae_bright.gif|frame|none|bright-field image sequence (4 sec) of an amoebae recorded on a modified webcam]] | ||
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+ | ====Video Examples==== | ||
Movie recorded with modified webcams: | Movie recorded with modified webcams: | ||
[http://www.youtube.com/watch?v=uIFMqmSjTMc&feature=channel_page Hackteria in Berlin] | [http://www.youtube.com/watch?v=uIFMqmSjTMc&feature=channel_page Hackteria in Berlin] | ||
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== Instructions == | == Instructions == |
Revision as of 22:40, 6 June 2009
Contents
DIY microscopy
Introduction
To use a simple usb webcam as a microscope, only a few modifications are needed.
In short, a small hack to the optics of a standard webcam with an adjustable focus-lens, allows to create video data, with a magnification of around 100 to 400x (depending on the model) at a working distance of a few mm. The highest magnifications can be achieved by inverting (putting upside down) the lens. Addition of good lighting by the use of leds allows to create images using a bright-field method (shine through the stuff) or dark field method (look at the reflections and scattering).
Video Examples
Movie recorded with modified webcams: Hackteria in Berlin
Instructions
Hacking the webcam
Step1:
Step2
Step3
Step4
Step5
Step6
Step7
Further modifications
mounting the microscope
There are many ways to finally build the microscope itself. here are a few examples from the workshop hackteria & lab_hacking @ NK, Berlin.
Simple microscope setup
Fixed, massiv and stable setup
Silicone embedded setup
Tape and cardboard setup
Magnification and Field of View
See: fieldofview for more details.
after completing the hack with the lenses, the magnification can be increased upto a field of view of 0.7 mm.