Difference between revisions of "DIY microscopy"
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[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 == | ||
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+ | ==== Hacking the webcam ==== | ||
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[[File:webcamhack_step2.jpg|none|300px|Step2: break it open. of course take care not to destroy anything]] | [[File:webcamhack_step2.jpg|none|300px|Step2: break it open. of course take care not to destroy anything]] | ||
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+ | ''Step3'' | ||
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+ | [[File:webcamhack_step3.jpg|none|300px|Step2: break it open. of course take care not to destroy anything]] | ||
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+ | [[File:webcamhack_step4.jpg|none|300px|Step2: break it open. of course take care not to destroy anything]] | ||
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+ | ''Step5'' | ||
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+ | [[File:webcamhack_step5.jpg|none|300px|Step2: break it open. of course take care not to destroy anything]] | ||
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+ | [[File:webcamhack_step6.jpg|none|300px|Step2: break it open. of course take care not to destroy anything]] | ||
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+ | [[File:webcamhack_step7.jpg|none|300px|Step2: break it open. of course take care not to destroy anything]] | ||
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+ | ==== mounting the microscope ==== | ||
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==== Magnification and Field of View ==== | ==== Magnification and Field of View ==== | ||
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[[File:Nematode.jpg|300px]] | [[File:Nematode.jpg|300px]] | ||
− | + | == more about microscopy == |
Revision as of 12:22, 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).
Movie recorded with modified webcams: Hackteria in Berlin
Instructions
Hacking the webcam
Step1:
Step2
Step3
Step4
Step5
Step6
Step7
mounting the microscope
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.