Making holograms with a pen plotter

A pen plotter was used to create holograms by plotting a series of lines that, when viewed from a specific angle, create a holographic effect. This technique is an inexpensive alternative to traditional holography methods. The process involves using a computer to generate the hologram's pattern and then plotting it with the pen plotter. This method has potential applications in fields such as art and education. The technique is also relatively easy to replicate.