The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 09, 2024
Filed:
Jul. 22, 2019
Optica Amuka (A.a.) Ltd., Petach Tikva, IL;
Yariv Haddad, Raanana, IL;
Yuval Vardy, Tel Aviv, IL;
Alex Alon, Binyamina, IL;
Yoav Yadin, Ganey Tikva, IL;
OPTICA AMUKA (A.A.) LTD., Petach Tikva, IL;
Abstract
Optical apparatus () includes an electro-optical layer (), contained within a transparent envelope () and having an effective local index of refraction at any given location that is determined by a voltage waveform applied across the electro-optical layer at the location. An array of excitation electrodes () is disposed over a surface of the transparent envelope. Control circuitry () is configured to apply voltage waveforms to the excitation electrodes so as to generate across at least a part of the active area of the electro-optical layer a phase modulation profile () comprising spatially alternating peaks (61) and troughs (62) separated by phase transitions chosen so as to emulate a Fresnel lens. The troughs have respective phase modulation depths that vary by at least one quarter wavelength at a nominal wavelength of 500 nm across at least the part of the active area of the electro-optical layer that emulates the Fresnel lens.