Samsung Electronics Co., Ltd.

Aleksander V Morozov

Sergey E Dubynin

Andrey Nikolaevich Putilin

Hongseok Lee

Hoon Song

Chilsung Choi

German B Dubinin

Vladislav Vladimirovich Druzhin

Sunil Kim

Jinho Lee

Jungkwuen An

Elena Gennadievna Malinovskaya

Igor Vitalievich Yanusik

Sergey S Kopenkin

Anastasiia Andreevna Kalinina

Bongsu Shin

Mikhail Vyacheslavovich Popov

Nikolay Viktorovich Muravev

Stepan Evgenievich Ivanov

Yuriy P Borodin

Dmitry Evgenievich Piskunov

Natalia Vladimirovna Zakharova

Anastasiia S Perevoznikova

Yurii P Borodin

Polina I Malinina

Kseniia I Lvova

Andrey Aleksandrovich Manko

Provided is an optical multi-pass imaging device including an aperture diaphragm (AD), and an optical element block including a front surface facing an object on which the AD is disposed and a back surface facing an image plane, the optical element block being optically coupled with the AD, wherein the optical element block includes at least one lens element, a wire grid polarizer (WGP), a quarter wave plate (QWP), and a cholesteric liquid crystal (ChLC) layer, wherein the WGP, the at least one lens element, the QWP, and the ChLC layer are disposed to provide a predetermined multi-transmission of radiation light from an object side to the image plane.

Optical multi-pass imaging device based on polarization elements and optical image capturing system for electronic mobile devices

Provided is a system of projection of a virtual image on a screen with the effect of eliminating the influence of solar radiation, the system that polarizes solar radiation in an optical path along which solar radiation is delivered to a display through a screen, eliminates and filters out ultraviolet and infrared components, and transmits only radiation of an operating range of the display to the display.

System of virtual image projection on screen with effect of eliminating influence of solar radiation

A beam expander includes first and second optical elements spaced apart from each other, and a light diffuser having an angular aperture that diffuses incident light through the angular aperture, wherein the first optical element in-couples the diffused light such that light exiting the first optical element has a first cross-sectional shape and light having a second cross-sectional shape different from the first cross-sectional shape is incident on the second optical element, and the second optical element out-couples light incident from the first optical element.

Beam expander and method of operating the same

There is provided a beam expander including a first optical element, a second optical element, a composite waveguide including a plurality of waveguide elements, and a dichroic coating provided between the plurality of waveguide elements. The first optical element inputs a collimated incident beam from the outside into the composite waveguide, and the second optical element outputs, from the composite waveguide, collimated incident beam, input to the composite waveguide, wherein the collimated incident beam input into the composite waveguide is divided into multiple wavefronts by the dichroic coating, and the multiple wavefronts are mixed by total internal reflection in the composite waveguide. When the beam expander is used, coherency and collimation of an output beam may be maintained and speckles may be reduced or eliminated while improving the efficiency of an optical system.

Beam expander and beam expansion method

Provided are an eye-tracking device that may rapidly and accurately track an observer's eye and may be made compact, and a display apparatus including the eye-tracking device. The eye-tracking device includes: a light source configured to emit an illumination light; a light guide plate configured to transmit the illumination light emitted from the light source to an observer's eye and transmit the illumination light reflected from the observer's eye in a direction opposite to a propagation direction of the illumination light emitted from the light source; a photodetector array configured to detect the illumination light reflected from the observer's eye; and a signal processor configured to determine an angle of rotation of the observer's eye based on a two-dimensional (2D) intensity distribution of the illumination light detected by the photodetector array.

Eye-tracking device and display apparatus including the same

Provided is a device configured to enlarge an exit pupil area of a visual optical apparatus, the device including a diffraction grating configured to output a plurality of diffracted light beams of a plurality of diffraction orders by diffracting an incident light beam, and a waveguide provided on the diffraction grating and configured to form an exit pupil based on a first diffracted light beam among the plurality of diffracted light beams output from the diffraction grating and to form exit pupil orders based on a second diffracted light beam among the plurality of diffracted light beams output from the diffraction grating.

Device for enlarging exit pupil area and display including the same

An augmented reality device for providing three-dimensional (3D) augmented reality and an operation method of the same are provided. The augmented reality device includes a multi-view picture generation unit configured to generate a multi-view picture including single-view images having respective individual characteristics, and generate an exit pupil including the generated multi-view picture, a waveguide configured to replicate the exit pupil generated by the multi-view picture generation unit, and an eyebox viewing zone generation unit configured to separate the single-view images based on the individual characteristics, and generate a three-dimensional (3D) image by outputting the single-view images in viewing zones in an eyebox corresponding to views of the single-view images.

Augmented reality device for providing 3D augmented reality and operating method of the same

Provided is a backlight unit including a light source emitting coherent light, a light guide plate propagating the light emitted by the light source, an input grating inputting the light from the light source into the light guide plate, an output grating provided on one surface of the light guide plate and diffracting light incident from inside the light guide plate and outputting the light, in a direction toward the outside of the light guide plate, a first recuperation element provided on one surface of the light guide plate and including a first recycle grating, and a second recuperation element provided opposite to the first recuperation element and directing, to the first recuperation element, incident light that is propagating inside the light guide plate.

Backlight unit providing uniform light and display apparatus including the same

A holographic see-through optical device, a stereoscopic imaging system including the same, and a multimedia head mounted system are provided. The holographic see-through optical device includes a micro display; a relay optical system, which relays an image generated by the micro display; at least one waveguide comprising at least two portions having different thicknesses or different refractive indexes; at least one first holographic optical element, which is arranged at one of the two portions; and at least one second holographic optical element, which is arranged at the other one of the two portions.

Holographic see-through optical device, stereoscopic imaging system, and multimedia head mounted system

An optical device includes a light input part and a light output part. The light input part includes a micro display; a first and a second polarizing beam splitters configured to reflect or transmit incident light including an image displayed on the micro display; and a first quarter wavelength plate configured to receive light transmitted by the first polarizing beam splitter or the second polarizing beam splitter and change a polarized state of the received light. The light output part includes a third and a fourth polarizing beam splitters configured to transmit or reflect light including the image received from the light input part; a second quarter wavelength plate configured to receive the light transmitted by the third polarizing beam splitter or the fourth polarizing beam splitter and change the polarized state of the received light, and a light condenser configured to condense the polarized light.

Optical device for augmented reality

Provided is a stereoscopic image system. The stereoscopic image system includes a display device radiating linearly polarized light, glasses including left and right oculars each including a first polarizer disposed between the display device and the eyes of a user, a second polarizer disposed between the first polarizer and the eyes of the user, and a polarization plane rotator disposed between the first polarizer and the second polarizer, and a quarter wave plate disposed between the display device and the first polarizer. Accordingly, even when the glasses are rotated around a normal line to surfaces of the left and right oculars, a change in the brightness of a stereoscopic image can be reduced.

Stereoscopic image system employing an electronic controller which controls the polarization plane rotator in synchronization with an output image of the display device

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Podolsk, Russia

Aleksander V Morozov