holographic imaging

A project log for open hardware fast high resolution LASER

bringing additive manufacturing to the next level

HexastormHexastorm 06/13/2021 at 12:312 Comments

I started with improving the optical layout of the Hexastorm. Luckily, there is a company from Colombia,, who made an open-source optical package for optics and also
provided some instructions on how to integrate this into FreeCAD. You can seen the result below.
I will explain the whole simulation in a different video.

Anyhow, what is even more interesting is that they also seem to user laser writing to a substrate to  create holograms.
See the video below

They report a resolution of  25400 dpi, which is 25.4 (mm)/ 25400 = 1 micron.
Production speed is 55 cm^2 per hour, i.e. a square sided 7.41 cm.
These are 74100 lanes with a length of 7.41 cm, which is 1.54 m/s .
Most likely, they use a galvo scanner. It might be done much faster with a prism as well, but I would have to recheck the whole design. I will outline in the next video, how you can make a design, in the first place.

Here is one of their holograms;


Hexastorm wrote 06/18/2021 at 12:31 point

PyOpTools is built quite good. So guess they have good reasons for it. I am not too familiar with holographic imaging. Anyhow, I am great full for what they have shared with the wider world.

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Gravis wrote 06/14/2021 at 04:10 point

Looks like they put a lot of effort into the hardware design but when it came to actual computing they just threw an expensive computer at the problem.  Seems like a waste to me.

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