o3-mini-high In this experiment, it is investigated whether a simple arrangement consisting of an LED and a germanium diode in a microwave can absorb energy from high-frequency electromagnetic radiation and convert it into light. In doing so, a so-called LECTENNA (Light Emitting Rectenna) is …
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Introduction Very compact and space-saving under-cabinet reading lamp for LED strips. I have designed the lamp so that the overall height is as low as possible (limited by the switch). The beam angle is chosen so that when mounted just above the head is pleasantly illuminated the book. Printing I recommend using heat-stable filament such …
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Introduction Circular, uniform and bright illumination is an essential requirement in stereomicroscopy. Unfortunately, cheap ringlights are either not bright enough or too simple in design. Industrial illumination systems for stereomicroscopes (e.g. SCHOTT, or ZEISS), on the other hand, are ridiculously expensive. So it was up to me to build something of my own. I have …
