IHMA Services

Patent of the Month

In June 2023’s edition of the International Hologram Manufacturers’ Association (IHMA) patent newsletter, just under 100 patents are listed; among them are two patents from the Korea Electronics Technology Institute.

The first patent: ‘Sub-hogel based holographic stereogram printing method’ describes a system comprising a modulator for generating a spatial light modulator (SLM) image, a front-end optical system for imaging the generated SLM image on a diffuser, the diffuser for scattering the imaged SLM image, a 2D lens array for generating a multi-view SLM image from the scattered SLM image, and a rear-end optical system for inputting the generated multi-view SLM image into a holographic medium.

The diagram shows a modulator generating an SLM image, shear optics to image the generated SLM image onto a diffuser, a 2D lens array and a back-end optical system focusing the multi-view image onto the holographic material.