MUMBAI, India, Oct. 26 -- Intellectual Property India has published a patent application (202617091240 A) filed by Demax-Holograms Ad on July 27, 2026, for Optical Variable Device.
Inventors include Monovski, Valentin Konstantinov; Ivanovskyi, Andrii Albertovich; and Baldzhiev, Angel Georgiev.
The application for the patent was published on October 23, 2026, under issue no. 43/2026.
Abstract: The invention relates to an optical variable device forming a magnified three-dimensional image of a micro-object with full parallax and contrast inversion effects for protection of goods and documents. It includes a micro-lens diffraction matrix (2) with period P1, center O and at least two cells (5) containing a diffractive micro-lens L modulated ...