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METHOD OF MANUFACTURE OF STEREOPS
For the manufacture of prismatic stereo glasses, you will need a case from the CD- disc ( figure 1 ), polystyrene glue (for example dichloroethane, or glue attached to the children's sets for assembling models). From tools - a cutter for cutting plastic also a file or a skin.
Fig.1 The scarlet color shows which parts are cut from different elements of the case
From the bottom cover of the case from the CD- disk, cut out part B (the size in length you will have to get automatically - from the wall to the wall) so as not to scratch the plastic through the side edges of the lid - the half-cut plastic can easily break evenly.
After all the details are cut out, straighten the strips B , B , D also on the height on the file or on the skin (put the skin on a flat surface).
At what time all the parts are ready ( Fig. 2 ) - you can proceed to assembly: to the middle of strip B the partition B is adhered - to wet with glue you need both parts, if the glue is very liquid, you need to add shavings left by labor. So far, the glue has not completely dried up (there is a possibility to slightly move the parts), we glue the walls of G also D , we straighten the resulting system, and also glue the parts E to the bottom.
Fig.2 Blanks for a prism
Sequence of operations for gluing the prism
1. The partition B is glued to the center of the strip B.
2. The side faces of G and D are glued .
After that, it is necessary to allow the glue to dry, if there are cracks - to seal up (having mixed the glue with the chips more thickly), plus, after drying the glue, to carry out tests - to sample pour boiled standing water into the prism.
If the prism is glued carefully, it does not flow in any way, then it is possible to verify its optical properties-to examine through it a stereopicture for the inverse (cross) method, for example, from the journal Science and Life ( No. 4, 1998, No. 5, 2000 ).
If you notice a leak, grease the seams with glue again. If there are no leaks, you can continue to work, and also dry the inner surfaces of the prism and glue the top cover (matte side down). After the glue has dried, it remains only to fill the prism with liquid. Fill the glycerin in the prism (the refractive index of glycerin is greater than that of water, plus, therefore, the prism will become stronger to shift the images - it will be possible to closer look at the stereo picture). You can also fill the prism with distilled water. Just so fill the liquid does not succeed - the liquid will be on your hands, on the table - everywhere, in addition to the organs of the prism. It is most convenient to use a syringe, you can use a pipette (if you have the patience), but you can use a double piece of plastic tube: one tube is immersed in a bottle of glycerine, the other end is pressed to the filling hole, but the second tube is pressed to another hole - the atmosphere is aspirated. After filling the filling holes must be wiped also with pieces of self-adhesive film.
Author of the article: Sergey Velichkin