Pen Plotter Generates Hand-Etched Holograms

TL;DR. A maker demonstrates creating simple holograms using a pen plotter by manipulating reflective ridges to control light reflection. - The technique involves etching specific patterns that steer virtual image highlights based on curvature. - This method allows for intuitive understanding and creation of etch-holograms without complex math. - The project explores using a modified commercial plotter for intricate optical art forms.

• A pen plotter is used to create holograms by precisely drawing patterns that manipulate light reflection.
• The core principle involves steering 'virtual image' highlights by varying the curvature of etched ridges.
• This method offers an intuitive approach to hand-drawn etch-holography, bypassing complex optical equations.
• The demonstration uses a pen plotter to create patterns previously achievable only by hand or specialized equipment.

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