Reddit Reddit reviews Linear Polarization A4 Sheet Polarizer Educational Physics Polarized Filter Optical

We found 1 Reddit comments about Linear Polarization A4 Sheet Polarizer Educational Physics Polarized Filter Optical. Here are the top ones, ranked by their Reddit score.

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Linear Polarization A4 Sheet Polarizer Educational Physics Polarized Filter Optical
High Contrast Linear Polarizing FilmHigh Transmission of Unpolarized Light from 400 – 700nmExcellent Extinction RatioAvailable in Various Sheet Sizes for your Customized UseGreat for experiments and learning Physics. The sheet is 0.2mm thick and 8.27" X 11.69" (21cm x 29.7cm), IMPORTANT(!) please note that on both sides there is a protective film sheet. You have to remove it gently before use. Once removed, the polarizer sheet will be revealed, clean and smooth.
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1 Reddit comment about Linear Polarization A4 Sheet Polarizer Educational Physics Polarized Filter Optical:

u/AyrA_ch · 29 pointsr/mildlyinteresting

Instead of watching a 17 minute video, here's a text instruction:

  1. Open the monitor case and remove the display panel itself
  2. Bend the metal frame of the panel so you can separate the layers (they are just stacked, not glued). You can usually bend it on the back
  3. Tear off the foil at the front. Be careful to not break the display panel. Works best on a flat surface where you can push down the panel with one hand and tear off the foil with the other. It usually comes off in one piece
  4. Clean up the glue residue. Window cleaner works ok in most cases. When you use aggressive cleaner, be sure you only apply it to the panel and not the cables attached to it
  5. Put the panel layers back into the frame in the same order you removed them and bend it closed again
  6. Reassemble the monitor
  7. Power on. If it's completely white, you're good to go. You can hold up the removed polarizer in front of it to test it. The image will also be faintly visible if you look at it from a steep angle.
  8. Get yourself some 3D movie glasses and a sheet of polarizer
  9. Hold the polarizer in front of the monitor until the image is clearly visible (try 45° angles first), then trace the glasses with a sharpie and cut the sheet and install into the glasses (discard the old polarizer pieces in it)

    Note: The removed polarizer foil will be unusable for the glasses. That foil is what's responsible for the monitor being glossy or matte and the picture will be blurry unless you hold it directly against the panel. The glue is also difficult to get off (I tried WD-40, brake cleaner and gasoline and my foil is still sticky)

    Removal with a knife:

    Some people (including the person in the video) remove the foil using a knife. Don't do that. There's a chance you damage the display panel with the blade or slip off and cut yourself because cutting the polarizer requires a lot of force since it's much thicker than you would think. It's difficult to feel when you hit the glass below. It also takes longer than dismantling the panel.