If the youtuber bitluni a project printers, it is mostly colorful, bright and full of leds. Accordingly, the transparent resin for his msla printer has inspired him to leave light through the resulting print objects. Then he printed lenses, fresnel lenses and lenticular lenses, which – after some experiments – have finally become part of a 3d display. The used 3d display technology know many from your youth as so-called wobble picture.
In his short, but informative youtube video, so many information about the production and the theory of lenticular lenses are packed, that you can see it several times without being bored. The theory is completed with printed models and graphics, the aftertreatment of resin prints for maximum transparency and also tips for gluing are not missing. The specially developed tools for creating lenticular images and videos are available on bitlunis github. And at the end, a 3d display works, which works – at least apparently, because the camera represents no real 3d impression.
Aftertreatment for clear lenses
What are lenticular representations?
Lenticular representations that predicted with lenses three-dimensional pictures are nothing new – wobble pictures on postcards and toys are probably known to everyone. The 3d film projection on grid finish has already been used in the 1930s and presented the beginning of the 2000 first market 3d-lc displays on trade fairs such as the cebit. I had the gluck on one and for such a 3d monitor 3d graphics. The effect was already good – but pictures that seem to come from the monitor, pure marketing mockups.
One of the gentle monitors.
This technique has never prevailed. The more successful commercial product is the game console nintendo 3ds. The technique cranks on a lack of display resolution, to rough viewing angle dependence and the fact that the expensive 3d monitors could only be used as such and not as 2d displays. Essential impulses came from germany, where in berlin, jena, dresden and leipzig manufacturer showed displays for market maturity. The rapid availability of very high-resolution displays and the development of monitors on which several users simultaneously see from different directions 3d was then torpedated by the emerging eyewear-based 3d techniques, so that the developers are equal to holographic displays.
Thus, it was quiet in the mainstream around the lenticular displays, but continued in the maker scene. The big problem is that the lens must fit exactly to the pixel rows in the display. With a printed picture you can scale them until it fits – with an existing video display, such as a mobile phone, it is quite hopeless to find a suitable lens.