# US 10,481,304 B2 · Lens sheet, method of forming lens sheet, augmented reality device and system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,481,304 B2 - Document ID: US10481304B2 - Status: Granted - Kind: B2 - Application number: 15/634,071 - Filed: 2017-06-27 - Published: 2018-12-27 - Granted: 2019-11-19 - Earliest claimed: 2017-06-27 - Assignees: Panasonic Intellectual Property Management Co., Ltd. - Applicants: Panasonic Intellectual Property Management Co., Ltd. - Inventors: Chandra Suwandi Wijaya; Jovia Jia Zhen Lee - Web page: https://patentgrep.com/patent/US10481304B2 ## CPC - G02B 3/005: {arranged along a single direction only, e.g. lenticular sheets (G02B3/0043 takes precedence)} - G02B 5/045: {Prism arrays} - G02B 27/0093: {with means for monitoring data relating to the user, e.g. head-tracking, eye-tracking} - G02B 27/0101: {characterised by optical features (G02B27/0172 takes precedence)} - G02B 27/0179: {Display position adjusting means not related to the information to be displayed} - G02B 30/27: involving lenticular arrays - G02B 2003/0093: {characterised by the shape} - G02B 2027/011: {comprising device for correcting geometrical aberrations, distortion} - G02B 2027/0132: {comprising binocular systems} - G02B 2027/0134: {of stereoscopic type} - G02B 2027/0187: {slaved to motion of at least a part of the body of the user, e.g. head, eye} - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS ## Abstract According to various embodiments, there is provided a lens sheet including an array of lenses arranged parallel to each other. Each lens includes a light redirecting portion having a light incident surface and a light reflecting surface, and includes a light refracting portion. The light reflecting surface is slanted relative to the light incident surface and relative to a plane interfacing the light redirecting portion and the light refracting portion, such that light of a first view image and light of a second view image transmitted through the light incident surface into the lens are directed to a first region and a second region of the light reflecting surface respectively and are reflected to the light refracting portion by the light reflecting surface. The first region is next to the second region. The light refracting portion is configured to refract the light of the first view image to a first view region and refract the light of the second view image to a second view region spaced apart from the first view region. ## Claims ### Claim 1 A lens sheet, comprising: an array of lenses, wherein each lens comprises: a light redirecting portion, and a light refracting portion, wherein the light redirecting portion is configured to receive light of first view image and light of second view image and redirect the light of the first view image and the light of the second view image to the light refracting portion, wherein the light refracting portion is configured to refract the light of the first view image to a first view region and refract the light of the second view image to a second view region spaced apart from the first view region, and wherein the first view region is a left eye view region of a driver, and the second view region is a right eye view region of the driver. ### Claim 2 (depends on 1) The lens sheet according to claim 1, wherein the light refracting portion comprises a convex surface configured to refract the light of the first view image to the first view region, and refract the light of the second view image to the second view region. ### Claim 3 (depends on 2) The lens sheet according to claim 2, wherein the light of the first view image and the light of the second view image are reflected onto different regions of the convex surface. ### Claim 4 (depends on 1) The lens sheet according to claim 1, wherein the light refracting portion is a lens portion in at least one of a partially cylindrical shape, a partially polygonal prism shape, a triangular prism shape, or a partially spherical shape. ### Claim 5 (depends on 1) The lens sheet according to claim 1, wherein the array of lenses are arranged in a one-dimensional array or a two-dimensional array. ### Claim 6 (depends on 1) The lens sheet according to claim 1, wherein the array of lenses are arranged with space between each other. ### Claim 7 An augmented reality device, comprising: an array of lenses, and an image input configured to project light of a first view image and light of a second view image to a selected lens of the array of lenses; and a processor connected to the image input, wherein each lens comprises: a light redirecting portion, and a light refracting portion, wherein the light redirecting portion is configured to receive the light of first view image and the light of second view image and redirect the light of the first view image and the light of the second view image to the light refracting portion, wherein the light refracting portion is configured to refract the light of the first view image to a first view region and refract the light of the second view image to a second view region spaced apart from the first view region, and wherein the processor is configured to determine the respective first view image, the respective second view image and the respective selected lens based on eye positions of a driver. ### Claim 8 (depends on 7) The augmented reality device according to claim 7, wherein the array of lenses are formed as a lens sheet, and the lens sheet is arranged on a surface of a display screen. ### Claim 9 (depends on 8) The augmented reality device according to claim 8, wherein the display screen is a transparent screen. ### Claim 10 (depends on 8) The augmented reality device according to claim 8, wherein the display screen is one of a windscreen of a vehicle, a combiner of a head-up display, or a display element of a head-mounted display. ### Claim 11 (depends on 7) The augmented reality device according to claim 7, wherein the image input is configured to determine the respective first view image, the respective second view image and the respective selected lens further based on a distance of an object from the driver, such that the respective first view image and the respective second view image are superimposed on top of the object seen by the driver. ### Claim 12 (depends on 7) The augmented reality device according to claim 7, wherein the first view region is a left eye view region of the driver, and the second view region is a right eye view region of the driver. ### Claim 13 (depends on 7) The augmented reality device according to claim 7, wherein the first view image and the second view image comprise one or more information selected from vehicle position, vehicle marking, navigation, pedestrian warning, driving suggestions, driving information. ### Claim 14 An augmented reality system, comprising: a lens sheet including an array of lenses, wherein each lens comprises: a light redirecting portion, a light refracting portion, wherein the light refracting portion is configured to refract a light of the first view image to a first view region and refract a light of the second view image to a second view region spaced apart from the first view region; an image input configured to project the light of the respective first view image and the light of the respective second view image to a respective selected lens of the array of lenses; a sensor configured to detect a distance of an object to a driver; and a processor configured to determine the respective first view image, the respective second view image and the respective selected lens based on the distance of the object from the driver. ### Claim 15 (depends on 14) The augmented reality device according to claim 14, wherein the processor is configured to determine the respective first view image, the respective second view image and the respective selected lens further based on a distance of an object from the driver, such that the respective first view image and the respective second view image are superimposed on top of the object seen by the driver.