公开(公告)号：US20220091037A1

公开(公告)日：2022-03-24

申请号：US17543977

申请日：2021-12-07

Applicant: Lumus Ltd.

Inventor： Chaim ALDAAG ,  Tzofia LAVI ,  Dror HERMONI ,  Jonathan GELBERG ,  Yosef LAVIAN ,  Netanel GOLDSTEIN ,  Elad SHARLIN ,  Elad LAVI ,  Kobi GREENSTEIN ,  Amir SHAPIRA ,  Mordechai GILO ,  Tsion EISENFELD

IPC: G01N21/59 ,  G01N21/84

Abstract: Optical sample characterization facilitates measurement and testing such as transmittance or reflectance at any discrete angle in a full range of angles of light propagation through a coated glass plate having a higher than air index of refraction. A rotatable assembly includes a cylinder having a hollow, and a receptacle including the hollow. The receptacle also contains a fluid having a refractive index matching the refractive index of the cylinder and coated plate. An optical light beam is input normal to the surface of the cylinder, travels through the cylinder, then via the index matching fluid through the coating, the coated glass plate, the fluid, the other side of the cylinder, and is collected for analysis. Due at least in part to the index matching fluid surrounding the coated plate, the plate can be rotated through a full range of angles (±90°, etc.) for full range testing of the coating.

公开(公告)号：US20240361508A1

公开(公告)日：2024-10-31

申请号：US18762883

申请日：2024-07-03

Applicant: Lumus Ltd.

Inventor： Tsion EISENFELD ,  Yochay DANZIGER ,  Eitan RONEN ,  Ronen CHRIKI ,  Mordechai GILO ,  Elad SHARLIN

IPC: F21V8/00

CPC classification number: G02B6/0028 ,  G02B6/0055

Abstract: An optical device includes a first waveguide, having parallel first and second faces and parallel third and fourth faces forming a rectangular cross-section, that guides light by four-fold internal reflection and is associated with a coupling-out configuration that couples light out of the first waveguide into a second waveguide. The first or second face is subdivided into first and second regions having different optical characteristics. The optical device also includes a coupling-in configuration having a surface that transmits light into the first waveguide. The surface is deployed in association with a portion of the third or fourth face adjoining the second region such that an edge associated with the surface trims an input collimated image in a first dimension, and a boundary between the first and second regions trims the input collimated image in a second dimension to produce a trimmed collimated image that advances by four-fold internal reflection.

公开(公告)号：US20210055218A1

公开(公告)日：2021-02-25

申请号：US17043842

申请日：2019-04-07

Applicant: Lumus Ltd.

Inventor： Chaim ALDAAG ,  Tzofia LAVI ,  Dror HERMONI ,  Jonathan GELBERG ,  Yosef LAVIAN ,  Netanel GOLDSTEIN ,  Elad SHARLIN ,  Elad LAVI ,  Kobi GREENSTEIN ,  Amir SHAPIRA ,  Mordechai GILO ,  Tsion EISENFELD

IPC: G01N21/59 ,  G01N21/84

Abstract: Optical sample characterization facilitates measurement and testing such as transmittance or reflectance at any discrete angle in a full range of angles of light propagation through a coated glass plate having a higher than air index of refraction. A rotatable assembly includes a cylinder having a hollow, and a receptacle including the hollow. The receptacle also contains a fluid having a refractive index matching the refractive index of the cylinder and coated plate. An optical light beam is input normal to the surface of the cylinder, travels through the cylinder, then via the index matching fluid through the coating, the coated glass plate, the fluid, the other side of the cylinder, and is collected for analysis. Due at least in part to the index matching fluid surrounding the coated plate, the plate can be rotated through a full range of angles (±90°, etc.) for full range testing of the coating.

公开(公告)号：US20180157057A1

公开(公告)日：2018-06-07

申请号：US15879459

申请日：2018-01-25

Applicant: LUMUS LTD.

Inventor： Jonathan GELBERG ,  Mordechai GILO ,  Aviad BAR MEIR ,  Aviv FROMMER

IPC: G02B27/28 ,  G03B21/00 ,  G03B21/20 ,  G02F1/1362 ,  G02B27/30

CPC classification number: G02B27/283 ,  G02B5/3025 ,  G02B5/3058 ,  G02B27/30 ,  G02F1/136277 ,  G02F2203/02 ,  G03B21/006 ,  G03B21/2006 ,  G03B21/2073

Abstract: An optical system (100) includes an image-collimating prism (102) having external surfaces which are associated with: a polarized source; reflective-display device (70); at least one light-wave collimating component (16) and a light-wave exit surface (20), respectively. A polarization-selective beam splitter configuration (10) is deployed within the prism (102) on a plane oblique to the light-wave entrance surface (8). The reflective-display device is illuminated by light reflected from the beam splitter configuration (10), and generates rotation of the polarization corresponding to bright regions of the image. An image from the reflective-display device (70) is selectively transmitted by the polarization-selective beam splitter configuration (10), is collimated by the collimating component (16), reflected from the polarization-selective beam splitter configuration (10) and is projected through the exit surface (20). In some implementations, an additional polarizer located at or near the exit surface helps to optimize extinction of unwanted illumination rays.