WO2023156982 - DEVICE FOR EMITTING A LIGHT BEAM AND PARTIAL BEAM SPLITTER

National phase entry:
Publication Number WO/2023/156982
Publication Date 24.08.2023
International Application No. PCT/IB2023/051540
International Filing Date 20.02.2023
Title [English] DEVICE FOR EMITTING A LIGHT BEAM AND PARTIAL BEAM SPLITTER [French] DISPOSITIF D'ÉMISSION D'UN FAISCEAU LUMINEUX ET SÉPARATEUR DE FAISCEAU PARTIEL
Applicants ** INNOVIZ TECHNOLOGIES LTD. 5 Uri Ariav Street Building C, Nitzba 300 4809202 Rosh Ha'Ayin, IL
Inventors ** ESHEL, Ronen 4A Even Shafrut street 4644504 Herzliya, IL FELDMUS, Neriya 17/4 Nils Boher Street 4841224 Rosh Ha’Ayin, IL YIFAT, Yuval 3 Manya ve-Yisra'el Shokhat St. Apt. 9 6934209 Tel Aviv-Yafo, IL SHFARAM, Harel Yosef P.O.B. 160 7982000 Kibbutz Revadim, IL ENTIN, Amy 72/18 Ahad Ha’am street 6520512 Tel Aviv, IL
Priority Data 63/312,138  21.02.2022  US 63/370,695  08.08.2022  US
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Abstract [English] ) is the portion of the FOV at which a person (14) may be and at which the illuminated beam profile distribution is required to meet stricter eye-safety requirements. The beam profile redistributor (120) may be implemented as at least one of: an aspherical lens, a (Gaussian-to) top-hat converter, a diffractive optical element, a phase shifter, a meta surface, a liquid crystal display, a liquid crystal on silicon, and a set of reflectors, in particular a micromirror array. [French] ) constitue la partie du champ de vision au niveau de laquelle peut se trouver une personne (14) et au niveau de laquelle la diffusion du profil du faisceau lumineux est requise pour satisfaire à des exigences de sécurité oculaire plus strictes. Le rediffuseur de profil de faisceau (120) peut être mis en œuvre sous la forme d'au moins un élément parmi : une lentille asphérique, un convertisseur haut-de-forme (gaussien), un élément optique à diffraction, un déphaseur, une méta-surface, un affichage à cristaux liquides, un cristal liquide sur silicium, et un ensemble de réflecteurs, en particulier un réseau de micro-miroirs.