Who doesn’t know the issue of glare when making an attempt to ogle a PCB beneath a microscope of some description? Even with a hoop gentle, you end up struggling to make out fantastic element corresponding to laser-etched markings in ICs, for the reason that scattered gentle turns every part right into a hazy mess. That’s the place a easy sheet of linear polarizer movie can do wonders, as demonstrated by [northwestrepair] in a current video.
Merely get considered one of these ubiquitous movies out of your favourite purveyor of products, or from a junked LCD display or comparable, and seize a pair of scissors or chopping implements. The fundamental thought is to place this linear polarizer movie on each the sunshine supply in addition to in your microscope’s lens(es), in order that manipulating the orientation of both to align the polarization will make the glare vanish.
That is considerably much like using polarizing sunshades, solely right here you additionally produce particularly the polarized gentle that will probably be let by means of, supplying you with glorious management over what you see. As demonstrated within the video, merely rotating the ring gentle with the polarizer connected offers wildly totally different outcomes, starting from glare-central to a darkened-but-clear image view of an IC’s markings.
The best way to adapt this technique to your specific microphone is left as your each day arts and crafts train. You might also need to tweak your lighting setup to change the angle and depth, as there’s not often a single silver bullet for the perfect setup.
Simply the factor for that shiny new microscope underneath the Christmas tree. Don’t have a hoop gentle? Construct one.
