I have an Bausch & Lomb optical Stereo-Zoom (SZ4) microscope which is a great instrument and not a luxury when you do a lot of SMD prototyping and repairs. The light solution for this was a simple piece of white LED strip powered from a 12V adapter, worked well for over 6 years and I thought an upgrade to this will make a nice weekend project.
To really make this nice and portable it had to be very compact, wireless power from a rechargeable Lithium-Polymer battery. But how can this be powered from 3-4V when the LED strips require 12V?
Watch the details in the video below, along with a demo of laser-cut SMD stencils and complete hand assembly and test of the new light ring.
The before and after shots:
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The design files are over at Github. Are you planning to make one or add more features? Did you learn something new from this video? Have a question or other suggestions? Let me know in the comments!
Hi Felix,
Congratulation for the design.
Would you be so kind to let me know what kind of micro USB, on/of switch and lipo plug will fit with the pcb board ?
I believe it’s this one: https://www.mouser.com/ProductDetail/Amphenol-FCI/10118194-0001LF?qs=Ywefl8B65e4FIdY8OWfRQA%3D%3D