WO2017003719A2 - Illuminator - Google Patents

Illuminator Download PDF

Info

Publication number
WO2017003719A2
WO2017003719A2 PCT/US2016/038028 US2016038028W WO2017003719A2 WO 2017003719 A2 WO2017003719 A2 WO 2017003719A2 US 2016038028 W US2016038028 W US 2016038028W WO 2017003719 A2 WO2017003719 A2 WO 2017003719A2
Authority
WO
WIPO (PCT)
Prior art keywords
reflective polarizer
light
reflective
optical axis
face
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2016/038028
Other languages
English (en)
French (fr)
Other versions
WO2017003719A3 (en
Inventor
Andrew J. Ouderkirk
Zhisheng Yun
Erin A. McDOWELL
Timothy L. Wong
Kandyce M. Bohannon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
3M Innovative Properties Co
Original Assignee
3M Innovative Properties Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 3M Innovative Properties Co filed Critical 3M Innovative Properties Co
Priority to US15/737,380 priority Critical patent/US11061233B2/en
Priority to KR1020187001779A priority patent/KR20180021086A/ko
Priority to CN201680037640.7A priority patent/CN107710050A/zh
Priority to JP2017567626A priority patent/JP7043262B2/ja
Publication of WO2017003719A2 publication Critical patent/WO2017003719A2/en
Publication of WO2017003719A3 publication Critical patent/WO2017003719A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/017—Head mounted
    • G02B27/0172—Head mounted characterised by optical features
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/0093—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means for monitoring data relating to the user, e.g. head-tracking, eye-tracking
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/12—Beam splitting or combining systems operating by refraction only
    • G02B27/126—The splitting element being a prism or prismatic array, including systems based on total internal reflection
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
    • G02B27/283—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising used for beam splitting or combining
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
    • G02B27/283—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising used for beam splitting or combining
    • G02B27/285—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising used for beam splitting or combining comprising arrays of elements, e.g. microprisms
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
    • G02B27/286—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising for controlling or changing the state of polarisation, e.g. transforming one polarisation state into another
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/04—Prisms
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/2066—Reflectors in illumination beam
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/2073—Polarisers in the lamp house
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/208—Homogenising, shaping of the illumination light
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/017—Head mounted
    • G02B2027/0178—Eyeglass type

Definitions

  • an illuminator including a polarizing beam splitter, a light source and an image forming device.
  • the polarizing beam splitter includes a first prism having an input face, an output face and a first hypotenuse; a second prism having an imager face and a second hypotenuse, the second hypotenuse disposed adjacent the first hypotenuse; and a reflective polarizer disposed between the first hypotenuse and the second hypotenuse.
  • the light source is disposed adjacent the input face and defines an input active area on the input face.
  • the image forming device is disposed adjacent the imager face for receiving light emitted from the light source and emitting a patterned light.
  • the image forming device has a largest image area which defines an output active area on the output face. One or both of the input active area and the output active area are less than about half the largest image area.
  • the optical axis has a length dl between the light source and the reflective polarizer, a length d2 between the first reflective component and the reflective polarizer, a length d3 between the second reflective component and the reflective polarizer, and a length d4 between the lens and the reflective polarizer.
  • dl and d4 are less than a lesser of d2 and d3.
  • an illuminator including a light source, a reflective polarizer, a first reflective component, a second reflective component and a lens.
  • the illuminator is configured such that a central light ray emitted by the light source sequentially passes through the reflective polarizer, reflects from the first reflective component back toward the reflective polarizer, reflects from the reflective polarizer towards the second reflective component, reflects from the second reflective component back towards the reflective polarizer, passes through the reflective polarizer, and then exits the illuminator through the lens.
  • a polarizing beam splitting system including a reflective polarizer and having a folded optical axis defined by an optical path of a central light ray emitted by a light source towards the reflective polarizer.
  • the folded optical axis includes overlapping first and second segments and overlapping third and fourth segments.
  • the optical path along the first segment has a first direction and the optical path along the second segment has a second direction opposite to the first direction.
  • the optical path along the third segment has a third direction and the optical path along the fourth segment has a fourth direction opposite to the third direction.
  • the first direction and the third direction are substantially orthogonal.
  • FIG. 1 is a side view of a polarizing beam splitter
  • FIG. 2 is a side view of an illuminator
  • FIG. 4A is a side view of an illuminator
  • FIG. 7 is a schematic side view of an illuminator
  • the second face 1 14 has a largest area (the total area of second face 1 14) that is less than about half of a largest area of the third face 122 (the total area of third face 122) and/or that is less than about half of a largest area of the fourth face 124 (the total area of fourth face 124).
  • the largest area of second face 114 is less than 60 percent, or less than 50 percent, or less than 40 percent, or less than 35 percent of the largest area of third face 122.
  • the largest area of second face 1 14 is less than 60 percent, or less than 50 percent, or less than 40 percent, or less than 35 percent of the largest area of fourth face 124.
  • each of the largest area of the first face 1 12 and the largest area of the second face 1 14 is less than about half of a lesser of a largest area of the third face 122 and the largest area of the fourth face 124.
  • a reflective polarizer 230 is disposed between first and second hypotenuses 216 and 226.
  • the light source 250 produces a light beam having an envelope 252 and a central light ray 256 which defines a folded optical axis 257 having first, second, third and fourth segments, 257a-257d.
  • the first reflective component 232 is disposed adjacent the polarizing beam splitter 200 opposite light source 250 and the second reflective component 234 is disposed adjacent the polarizing beam splitter 200 opposite lens 240.
  • the second reflective component 234 has a largest active area 236.
  • the second reflective component 234 may be an image forming device and the largest active area 236 may be a largest image area of the image forming device.
  • Light is emitted (by being reflected, for example) from second reflective component 234 in envelope 254.
  • One or both of the first and second reflective components 232 and 234 may have a specular reflectance of greater than 70 percent, or greater than 80 percent, or greater than 90 percent.
  • the first and/or second reflective components 232 and 234 may be flat or may be curved in one or more axes.
  • Folded optical axis 257 includes first segment 257a extending in a first direction (positive x- direction) from the light source 250 to the first reflective component 232, second segment 257b extending in a second direction (negative x-direction) opposite the first direction, third segment 257c extending in a third direction (negative y-direction), and fourth segment 257d extending in a fourth direction (positive y- direction) opposite the third direction.
  • First and second segments 257a and 257b are overlapping though they are shown with a small separation in FIG. 2 for ease of illustration.
  • third and fourth segments 257c and 257d are overlapping though they are shown with a small separation in FIG. 2 for ease of illustration.
  • the first and second directions are substantially orthogonal to the third and fourth directions.
  • the first reflective component 232 is substantially perpendicular to the first segment 257a and the second reflective component 234 is substantially perpendicular to the third segment 257c.
  • At least a portion of the light from light source 250 is, in sequence, transmitted through the first prism 210, transmitted through the reflective polarizer 230, transmitted through the second prism 220, reflected from the first reflective component 232, transmitted back through the second prism 220, reflected from the reflective polarizer 230, transmitted through the second prism 220 and is incident on second reflective component 234, reflected from second reflective component 234, transmitted through second prism 220 and reflective polarizer 230 and first prism 210, and finally exits the illuminator through lens 240.
  • first reflective component 232 includes a polarization rotator, which may be a quarter wave retarder.
  • the portion of the spatially modulated light having a polarization along the pass axis of reflective polarizer 230 will pass through the reflective polarizer 230 as an imaged light, exit first prism 210 through output active area 215 and exit the illuminator through the lens 240.
  • the illuminator 202 allows an image to be projected by directing a light beam (in envelope 252) through a folded light path illuminator 202 onto an imaging forming device (second reflective component 234), and reflecting a converging patterned light (in envelope 254) from the image forming device.
  • the step of directing a light beam through the folded light path illuminator 202 includes directing light to the first reflective component 232 through the polarizing beam splitter 200, reflecting at least some of the light back towards the polarizing beam splitter 200, and reflecting at least some of the light from the polarizing beam splitter 200 towards the image forming device. At least a portion of the converging patterned light is transmitted through the polarizing beam splitter 200 and through lens 240.
  • light ray 352b which passes through reflective polarizer 330 after reflecting from second reflective component 334.
  • Light ray 352b then passes through first prism 310 and exits through output face 314.
  • Light ray 352b then passes through projection lens 344 and then exits the illuminator 302.
  • FIG. 4 is a side view of illuminator 402 including a first prism 410, a second prism 420, a reflective polarizer 430, a light source 450, a lens 440 which is an element of a projection lens 444, and a lens 462 disposed between light source 450 and face 422 of second prism 420.
  • Second prism 420 also has face 424 and includes components 460 which may be formed integrally with a body of the second prism 420 or may be attached to the body of the second prism 420 with an optically clear adhesive, for example.
  • the lens 462 has a first and second surface 466 and 468, respectively.
  • Light source 450 may correspond to any of the light sources described elsewhere herein.
  • the first surface 466 includes a quarter wave retarder
  • FIGS. 5A and 5B are a side views of illuminator 502 including first and second prisms 510 and 520, a reflective polarizer 530 disposed between hypotenuses of the first and second prisms 510 and 520, first and second reflective components 532 and 534, a lens 540, which may be an element of a projection lens, and a light source 550.
  • First prism 510 includes input surface 512 and output surface 514.
  • Second prism 320 has a first surface 522 and a second surface 524.
  • a central light ray emitted by light source 550 defines a folded optical axis 557 in a similar way that central light ray 256 defines folded optical axis 257.
  • the folded optical axis 557 has a length dl between the input surface 512 and the reflective polarizer 530, a length d2 between the first reflective component 532 and the reflective polarizer 530, a length d3 between the second reflective component 534 and the reflective polarizer 530, and a length d4 between the output surface 514 and the reflective polarizer 530.
  • one or both of dl and d4 are less than the lesser of d2 and d3, or less than 0.9 times the lesser of d2 and d3, or less than 0.85 times the lesser of d2 and d3.
  • the reflective polarizer 530 has a largest lateral dimension of d5 (described further elsewhere herein) and one or both of dl and d4 is less than d5/4, or less than 0.2 times d5 or less than 0.15 times d5.
  • one or both of dl ' and d4' are less than a lesser of d2' and d3 ', or less than 0.9 times the lesser of d2' and d3 ', or less than 0.85 times the lesser of d2' and d3 ' .
  • the reflective polarizer 530 has a largest lateral dimension of d5 and one or both of dl ' and d4' is less than d5/4, or less than 0.2 times d5 or less than 0.15 times d5.
  • the method of fatigue and cognitive load analysis can utilize historical data to determine if the current levels exceed a threshold.
  • This threshold can vary from person to person and may be determined using a machine learning algorithm once enough historical data has been gathered by the system and procedure described above. If the threshold of fatigue level or cognitive processing load is exceeded, a software application can be utilized to alert the user or a central office manager, for example.
  • the historical data e.g., time-series of pupil diameters
  • the eye tracking system may also track the movement of the eye by storing the location of the pupil in the image captured by the system over time. Including this location of the pupil in the time-series could provide information into how quickly the eye is moving, which provides another way that fatigue could be measured since slower moving eyes are more fatigued than quickly moving eyes.
  • Embodiment 13 is the illuminator of embodiment 11, wherein the lens is bonded to the second surface through an adhesive layer.
  • Embodiment 17 is the illuminator of embodiment 15, further comprising a second reflective component disposed adjacent a fourth surface of the polarizing beam splitter opposite the third surface.
  • Embodiment 27 is the polarizing beam splitter of embodiment 26, wherein the first face has a largest area that is less than about half of a largest area of the third face and that is less than about half of a largest area of the fourth face.
  • a first reflective component substantially perpendicular to the optical axis, the optical axis
  • Embodiment 32 is the polarizing beam splitting system of embodiment 31, wherein d4 is less than the lesser of d2 and d3.
  • Embodiment 33 is the polarizing beam splitting system of embodiment 31, wherein dl is less than the lesser of d2 and d3.
  • Embodiment 34 is the polarizing beam splitting system of embodiment 31, wherein both dl and d4 are less than the lesser of d2 and d3.
  • Embodiment 36 is the polarizing beam splitting system of embodiment 31, wherein the reflective polarizer has a largest lateral dimension of d5, one or both of dl and d4 being less than d5/4.
  • Embodiment 38 is the polarizing beam splitting system of embodiment 36, wherein one or both of dl and d4 is less than 0.2 times d5.
  • Embodiment 39 is the polarizing beam splitting system of embodiment 31, wherein the second reflective component is adapted to modulate light incident thereon.
  • Embodiment 41 is the polarizing beam splitting system of embodiment 31, wherein an angle between the reflective polarizer and the optical axis is between about 40 to 60 degrees.
  • Embodiment 43 is the polarizing beam splitting system of embodiment 31, wherein the second reflective component has a specular reflectance greater than about 80%.
  • Embodiment 44 is a polarizing beam splitting system adapted to receive light from a light source and centered on a folded optical axis defined by an optical path of a central light ray emitted by the light source, the polarizing beam splitting system comprising:
  • a reflective polarizer having a largest lateral dimension d5
  • the optical axis having a length
  • a first reflective component substantially perpendicular to the optical axis, the optical axis
  • the optical axis having a length d4 between the output surface and the reflective polarizer
  • dl and d4 are less than d5/4.
  • Embodiment 45 is the polarizing beam splitting system of embodiment 44, wherein dl is less than d5/4.
  • Embodiment 46 is the polarizing beam splitting system of embodiment 44, wherein d4 is less than d5/4.
  • Embodiment 48 is the polarizing beam splitting system of embodiment 44, wherein one or both of dl and d4 are less than 0.2 times d5.
  • Embodiment 49 is the polarizing beam splitting system of embodiment 44, wherein one or both of dl and d4 are less than a lesser of d2 and d3.
  • Embodiment 50 is the polarizing beam splitting system of embodiment 49, wherein dl is less than the lesser of d2 and d3.
  • Embodiment 51 is the polarizing beam splitting system of embodiment 49, wherein d4 is less than the lesser of d2 and d3.
  • Embodiment 52 is the polarizing beam splitting system of embodiment 49, wherein each of dl and d4 is less than the lesser of d2 and d3.
  • Embodiment 53 is the polarizing beam splitting system of embodiment 52, wherein each of dl and d4 is less than 0.9 times the lesser of d2 and d3.
  • a first reflective component substantially perpendicular to the optical axis and disposed
  • the optical axis having a length d2 between the first reflective component and the reflective polarizer;
  • Embodiment 57 is the illuminator of embodiment 56, wherein d4 is less than the lesser of d2 and d3.
  • Embodiment 58 is the illuminator of embodiment 56, wherein dl is less than the lesser of d2 and d3.
  • Embodiment 59 is the illuminator of embodiment 56, wherein both dl and d4 are less than the lesser of d2 and d3.
  • Embodiment 60 is the illuminator of embodiment 56, wherein one or both of dl and d4 are less than 0.9 times the lesser of d2 and d3.
  • Embodiment 61 is the illuminator of embodiment 56, wherein the reflective polarizer has a largest lateral dimension of d5, one or both of dl and d4 being less than d5/4.
  • Embodiment 62 is the illuminator of embodiment 61, wherein each of dl and d4 is less than d5/4.
  • Embodiment 65 is the illuminator of embodiment 56, wherein the second reflective component is pixelated.
  • Embodiment 66 is the illuminator of embodiment 56, wherein an angle between the reflective polarizer and the optical axis is between about 40 to 60 degrees.
  • the optical axis having a length d2 between the first reflective component and the reflective polarizer;
  • Embodiment 72 is the illuminator of embodiment 69, wherein each of dl and d4 is less than d5/4.
  • Embodiment 73 is the illuminator of embodiment 69, wherein one or both of dl and d4 are less than 0.2 times d5.
  • Embodiment 81 is an illuminator comprising a light source, a reflective polarizer, a first reflective component, a second reflective component and a lens, the illuminator configured such that a central light ray emitted by the light source sequentially passes through the reflective polarizer, reflects from the first reflective component back toward the reflective polarizer, reflects from the reflective polarizer towards the second reflective component, reflects from the second reflective component back towards the reflective polarizer, passes through the reflective polarizer and then exits the illuminator through the lens.
  • Embodiment 82 is the illuminator of embodiment 81 configured such that light that is reflected from the second reflective component and that passes through the lens is convergent between the second reflective component and the lens.
  • the optical path along the second segment having a second direction opposite to the first direction
  • first direction and the third direction are substantially orthogonal.
  • Embodiment 100 is the method of embodiment 98, wherein the directing a light beam step comprises: directing light to a reflective component through a polarizing beam splitter;
  • Embodiment 101 is a head mounted system comprising the illuminator of any of the previous embodiments directed to illuminators, or comprising the polarizing beam splitting system of any of the previous embodiments directed to polarizing beam splitting systems, or comprising the polarizing beam splitter of any of the previous embodiments directed to polarizing beam splitters.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Polarising Elements (AREA)
  • Projection Apparatus (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Lenses (AREA)
  • Image Input (AREA)
PCT/US2016/038028 2015-06-30 2016-06-17 Illuminator Ceased WO2017003719A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US15/737,380 US11061233B2 (en) 2015-06-30 2016-06-17 Polarizing beam splitter and illuminator including same
KR1020187001779A KR20180021086A (ko) 2015-06-30 2016-06-17 조명기
CN201680037640.7A CN107710050A (zh) 2015-06-30 2016-06-17 照明器
JP2017567626A JP7043262B2 (ja) 2015-06-30 2016-06-17 照明器

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201562186944P 2015-06-30 2015-06-30
US62/186,944 2015-06-30

Publications (2)

Publication Number Publication Date
WO2017003719A2 true WO2017003719A2 (en) 2017-01-05
WO2017003719A3 WO2017003719A3 (en) 2017-02-23

Family

ID=56292966

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/US2016/038028 Ceased WO2017003719A2 (en) 2015-06-30 2016-06-17 Illuminator
PCT/US2016/038659 Ceased WO2017003778A2 (en) 2015-06-30 2016-06-22 Polarizing beam splitting system

Family Applications After (1)

Application Number Title Priority Date Filing Date
PCT/US2016/038659 Ceased WO2017003778A2 (en) 2015-06-30 2016-06-22 Polarizing beam splitting system

Country Status (6)

Country Link
US (3) US11061233B2 (enExample)
JP (2) JP7043262B2 (enExample)
KR (1) KR20180021086A (enExample)
CN (2) CN107710050A (enExample)
TW (2) TW201716826A (enExample)
WO (2) WO2017003719A2 (enExample)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7043262B2 (ja) * 2015-06-30 2022-03-29 スリーエム イノベイティブ プロパティズ カンパニー 照明器
IL255795B (en) * 2017-11-20 2019-05-30 Elbit Systems Ltd Conical optical combiner
CN110927962B (zh) * 2018-09-20 2021-02-09 上海微电子装备（集团）股份有限公司 棱镜的设计方法、自参考干涉仪及其设计方法和对准系统
US10705026B2 (en) * 2018-10-26 2020-07-07 Kla Corporation Scanning differential interference contrast in an imaging system design
FR3091114B1 (fr) * 2018-12-19 2021-06-11 Valeo Comfort & Driving Assistance dispositif de capture d’images et système de surveillance d’un conducteur associé
WO2021050301A1 (en) * 2019-09-13 2021-03-18 Facebook Technologies, Llc Short distance illumination of a spatial light modulator using a single reflector
US11867921B2 (en) 2019-09-13 2024-01-09 Meta Platforms Technologies, Llc Short distance illumination of a spatial light modulator using a curved reflector
DE102020205937A1 (de) 2020-05-12 2021-11-18 Robert Bosch Gesellschaft mit beschränkter Haftung Brillenvorrichtung und Verfahren zum Einstellen einer Helligkeit des zumindest einen Bilds
US11792371B2 (en) * 2021-02-28 2023-10-17 Snap Inc. Projector with field lens
CN115437145A (zh) * 2021-05-18 2022-12-06 极瞳科技(北京)有限公司 一种增强现实显示系统及增强现实显示设备
US12135471B2 (en) 2021-09-10 2024-11-05 Tectus Corporation Control of an electronic contact lens using eye gestures
US11592899B1 (en) * 2021-10-28 2023-02-28 Tectus Corporation Button activation within an eye-controlled user interface
US11619994B1 (en) 2022-01-14 2023-04-04 Tectus Corporation Control of an electronic contact lens using pitch-based eye gestures
US11874961B2 (en) 2022-05-09 2024-01-16 Tectus Corporation Managing display of an icon in an eye tracking augmented reality device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5882774A (en) 1993-12-21 1999-03-16 Minnesota Mining And Manufacturing Company Optical film
US6609795B2 (en) 2001-06-11 2003-08-26 3M Innovative Properties Company Polarizing beam splitter

Family Cites Families (209)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3462604A (en) 1967-08-23 1969-08-19 Honeywell Inc Control apparatus sensitive to eye movement
US4755043A (en) 1985-02-15 1988-07-05 Somec, Inc. Portable scanning digital pupillometer and method of use thereof
JPS6332624A (ja) 1986-07-28 1988-02-12 Canon Inc 情報処理装置
US4891630A (en) 1988-04-22 1990-01-02 Friedman Mark B Computer vision system with improved object orientation technique
JPH02103253U (enExample) * 1989-02-02 1990-08-16
US6702809B1 (en) 1989-02-06 2004-03-09 Visx, Inc. System for detecting, measuring and compensating for lateral movements of a target
US5090797A (en) 1989-06-09 1992-02-25 Lc Technologies Inc. Method and apparatus for mirror control
JPH03126910A (ja) * 1989-10-13 1991-05-30 Mitsubishi Rayon Co Ltd 偏光光源装置及び偏光ビームスプリッター
EP0422661A3 (en) 1989-10-13 1992-07-01 Mitsubishi Rayon Co., Ltd Polarization forming optical device and polarization beam splitter
JPH03156421A (ja) * 1989-11-15 1991-07-04 Mitsubishi Rayon Co Ltd 偏光光源装置
JP2915467B2 (ja) 1990-02-22 1999-07-05 キヤノン株式会社 液晶プロジェクタ
JP3289953B2 (ja) 1991-05-31 2002-06-10 キヤノン株式会社 視線方向検出装置
FR2685100A1 (fr) 1991-12-17 1993-06-18 Thomson Csf Separateur de polarisations optique et application a un systeme de visualisation.
JPH05181014A (ja) 1991-12-27 1993-07-23 Sony Corp 偏光ビームスプリッタ
DE4330265B4 (de) 1992-09-07 2004-07-29 Canon K.K. Vorrichtung zum Erfassen der Sehachse eines Auges einer ein optisches Gerät bedienenden Person
JPH06138379A (ja) 1992-09-14 1994-05-20 Nikon Corp 視線検出装置付きカメラ
IL108672A (en) 1993-02-19 1997-07-13 Phoenix Laser Systems System for detecting, measuring and compensating for lateral movements of a target
US5539578A (en) * 1993-03-02 1996-07-23 Olympus Optical Co., Ltd. Image display apparatus
US5481622A (en) 1994-03-01 1996-01-02 Rensselaer Polytechnic Institute Eye tracking apparatus and method employing grayscale threshold values
US5422690A (en) 1994-03-16 1995-06-06 Pulse Medical Instruments, Inc. Fitness impairment tester
DE4419489A1 (de) 1994-06-03 1995-12-07 Amtech Ges Fuer Angewandte Mic Vorrichtung zum Messen der Pupillenreaktion eines Auges
US5617872A (en) 1994-07-25 1997-04-08 Beth Israel Hospitcal Assoc. Inc. Hypersensitive constriction velocity method for diagnosing Alzheimer's disease in a living human
US5596451A (en) 1995-01-30 1997-01-21 Displaytech, Inc. Miniature image generator including optics arrangement
US5583795A (en) 1995-03-17 1996-12-10 The United States Of America As Represented By The Secretary Of The Army Apparatus for measuring eye gaze and fixation duration, and method therefor
US5649061A (en) 1995-05-11 1997-07-15 The United States Of America As Represented By The Secretary Of The Army Device and method for estimating a mental decision
WO1996036271A1 (de) 1995-05-15 1996-11-21 Leica Ag Verfahren und vorrichtung zum parallelen erfassen von sehinformation
CN1204437A (zh) 1995-12-15 1999-01-06 英国电讯公司 网络管理系统
US6386706B1 (en) 1996-07-31 2002-05-14 Virtual-Eye.Com Visual function testing with virtual retinal display
US5864384A (en) 1996-07-31 1999-01-26 Mcclure; Richard J. Visual field testing method and apparatus using virtual reality
US6542081B2 (en) 1996-08-19 2003-04-01 William C. Torch System and method for monitoring eye movement
US6036316A (en) 1996-10-02 2000-03-14 Canon Kabushiki Kaisha Visual axis detecting device and apparatus including visual axis detecting device
US6847336B1 (en) 1996-10-02 2005-01-25 Jerome H. Lemelson Selectively controllable heads-up display system
JPH10170706A (ja) 1996-12-13 1998-06-26 Chinon Ind Inc 偏光分離プリズム
US6070098A (en) 1997-01-11 2000-05-30 Circadian Technologies, Inc. Method of and apparatus for evaluation and mitigation of microsleep events
US6310713B2 (en) 1997-04-07 2001-10-30 International Business Machines Corporation Optical system for miniature personal displays using reflective light valves
WO1999018842A1 (en) 1997-10-16 1999-04-22 The Board Of Trustees Of The Leland Stanford Junior University Method for inferring mental states from eye movements
CA2372376C (en) 1998-04-29 2007-11-20 Carnegie Mellon University Apparatus and method of monitoring a subject's eyes using two different wavelengths of light
US6120467A (en) 1998-04-30 2000-09-19 Medtronic Inc. Spinal cord simulation systems with patient activity monitoring and therapy adjustments
US5943171A (en) 1998-06-03 1999-08-24 International Business Machines Corporation Head mounted displays utilizing reflection light valves
GB9813041D0 (en) 1998-06-16 1998-08-12 Scient Generics Ltd Eye tracking technique
GB9823977D0 (en) 1998-11-02 1998-12-30 Scient Generics Ltd Eye tracking method and apparatus
DE19859086A1 (de) 1998-12-20 2000-06-21 Reinhard Beise Pupillograph zur kontinuierlichen Messung des Pupillendurchmessers
WO2000044580A1 (en) 1999-01-27 2000-08-03 Compumedics Sleep Pty. Ltd. Vigilance monitoring system
JP2000241750A (ja) * 1999-02-23 2000-09-08 Minolta Co Ltd 映像表示装置
US6335838B1 (en) 1999-02-23 2002-01-01 Minolta Co., Ltd. Image display apparatus
US6090051A (en) 1999-03-03 2000-07-18 Marshall; Sandra P. Method and apparatus for eye tracking and monitoring pupil dilation to evaluate cognitive activity
JP3234199B2 (ja) * 1999-03-31 2001-12-04 新潟県 イカを主材とした加工食品並びにピザ生地若しくはパン生地の製造方法
US6820979B1 (en) 1999-04-23 2004-11-23 Neuroptics, Inc. Pupilometer with pupil irregularity detection, pupil tracking, and pupil response detection capability, glaucoma screening capability, intracranial pressure detection capability, and ocular aberration measurement capability
US6116736A (en) 1999-04-23 2000-09-12 Neuroptics, Inc. Pupilometer with pupil irregularity detection capability
US6346887B1 (en) 1999-09-14 2002-02-12 The United States Of America As Represented By The Secretary Of The Navy Eye activity monitor
FR2799911B1 (fr) 1999-10-13 2001-12-28 Eastman Kodak Co Systeme de controle du stress
JP2001166252A (ja) 1999-12-03 2001-06-22 Sony Corp 画像表示装置
EP1127534A3 (en) 2000-02-24 2002-05-29 Matsushita Electric Works, Ltd. Non-invasive brain function examination
DE20006333U1 (de) 2000-04-07 2001-06-07 Clarke, Andrew A., Dr.-Ing., 14163 Berlin Vorrichtung zum kopffesten Positionieren von Messeinrichtungen, insbesondere Einrichtungen zum Messen von Augenbewegungen
JP2001344352A (ja) 2000-05-31 2001-12-14 Toshiba Corp 生活支援装置および生活支援方法および広告情報提供方法
KR100386725B1 (ko) 2000-07-31 2003-06-09 주식회사 대양이앤씨 헤드 마운트 디스플레이용 광학 시스템
US6542307B2 (en) * 2000-10-20 2003-04-01 Three-Five Systems, Inc. Compact near-eye illumination system
GB0027143D0 (en) 2000-10-31 2000-12-20 Malvern Scient Solutions Ltd Optical tracking method and apparatus
US6836309B2 (en) 2000-11-30 2004-12-28 Hana Microdisplay Technologies, Inc. High contrast reflective light valve
WO2002064031A2 (en) 2001-02-09 2002-08-22 Sensomotoric Instruments Gmbh Multidimensional eye tracking and position measurement system
GB2372683A (en) 2001-02-23 2002-08-28 Ibm Eye tracking display apparatus
US6572562B2 (en) 2001-03-06 2003-06-03 Eyetracking, Inc. Methods for monitoring affective brain function
IL143597A0 (en) 2001-06-06 2002-04-21 Suchard Eytan Method and apparatus for inferring physical/mental fitness through eye response analysis
US6714350B2 (en) 2001-10-15 2004-03-30 Eastman Kodak Company Double sided wire grid polarizer
US6873714B2 (en) 2002-02-19 2005-03-29 Delphi Technologies, Inc. Auto calibration and personalization of eye tracking system using larger field of view imager with higher resolution
US6719426B2 (en) 2002-02-28 2004-04-13 3M Innovative Properties Company Compound polarization beam splitters
AUPS254302A0 (en) 2002-05-24 2002-06-13 Resmed Limited A sleepiness test
JP3659637B2 (ja) 2002-06-28 2005-06-15 シャープ株式会社 投影型画像表示装置
CN1204437C (zh) 2002-08-28 2005-06-01 扬明光学股份有限公司 反射式光阀显像系统
AU2003269772A1 (en) 2002-10-15 2004-05-04 Volvo Technology Corporation Method and arrangement for interpreting a subjects head and eye activity
US7347551B2 (en) 2003-02-13 2008-03-25 Fergason Patent Properties, Llc Optical system for monitoring eye movement
US7682024B2 (en) 2003-03-13 2010-03-23 Plant Charles P Saccadic motion sensing
US7206134B2 (en) * 2004-02-04 2007-04-17 Displaytech, Inc. Compact electronic viewfinder
US7384399B2 (en) 2004-02-11 2008-06-10 Jamshid Ghajar Cognition and motor timing diagnosis and training system and method
JP4604190B2 (ja) 2004-02-17 2010-12-22 国立大学法人静岡大学 距離イメージセンサを用いた視線検出装置
JP3971405B2 (ja) 2004-03-30 2007-09-05 株式会社 ワック 瞳孔反応確認装置および疲労回復促進装置
AU2005229076B2 (en) 2004-04-01 2011-09-15 Google Llc Biosensors, communicators, and controllers monitoring eye movement and methods for using them
KR100601678B1 (ko) * 2004-05-22 2006-07-14 삼성전자주식회사 화상투사장치
WO2006011870A1 (en) 2004-06-25 2006-02-02 Fergason James L Optical system for monitoring eye movement
JP4081686B2 (ja) 2004-07-05 2008-04-30 ソニー株式会社 生体情報の処理装置および映像音響再生装置
WO2006026666A2 (en) 2004-08-31 2006-03-09 Synergeyes, Inc. Multipurpose optical imaging devices
US7545571B2 (en) 2004-09-08 2009-06-09 Concurrent Technologies Corporation Wearable display system
GB0421215D0 (en) 2004-09-23 2004-10-27 Procyon Instr Ltd Pupillometers
WO2006047816A1 (en) 2004-11-01 2006-05-11 Eye Diagnostics Pty Ltd Devic and method for investigating changes in the eye
TWI287166B (en) * 2004-11-15 2007-09-21 Young Optics Inc Projection display system
JP4497305B2 (ja) 2004-12-08 2010-07-07 株式会社デンソー 運転者状態判定装置
WO2006091893A2 (en) 2005-02-23 2006-08-31 Eyetracking, Inc. Mental alertness level determination
WO2006096135A1 (en) 2005-03-08 2006-09-14 National University Of Singapore A system and method for monitoring mental fatigue
US7255441B1 (en) 2005-03-30 2007-08-14 Koami Elom A Pupil measuring device
KR100718761B1 (ko) 2005-07-15 2007-05-15 미루 엔터프라이즈 눈동자 위치추적 센서 및 센싱방법
FR2888742A1 (fr) 2005-07-22 2007-01-26 Univ Nice Sophia Antipolis Eta Methode et systeme d'investigation en temps reel des processus cognitifs
US8358337B2 (en) 2005-08-23 2013-01-22 National University Corporation Shizuoka University Pupil detection device and pupil detection method
US8696113B2 (en) 2005-10-07 2014-04-15 Percept Technologies Inc. Enhanced optical and perceptual digital eyewear
EP1933694B1 (en) 2005-10-10 2020-07-22 Tobii AB Eye tracker having an extended span of operating distances
JP2007144113A (ja) 2005-10-25 2007-06-14 Olympus Corp 生体情報収集及び提示装置並びに瞳孔径測定装置
US7744216B1 (en) 2006-01-06 2010-06-29 Lockheed Martin Corporation Display system intensity adjustment based on pupil dilation
US8919958B2 (en) 2006-01-20 2014-12-30 Clarity Medical Systems, Inc. Apparatus and method for operating a real time large diopter range sequential wavefront sensor
CA2639125A1 (en) 2006-03-13 2007-09-13 Imotions-Emotion Technology A/S Visual attention and emotional response detection and display system
US20090209829A1 (en) 2006-03-24 2009-08-20 Pioneer Corporation Apparatus for detecting driver's mental state and method for detecting mental state
JP2007279136A (ja) * 2006-04-03 2007-10-25 Matsushita Electric Ind Co Ltd 光学素子、それを備えた光学素子モジュール、それを備えた光学装置、及び光学素子の製造方法
US20080013051A1 (en) 2006-07-14 2008-01-17 3M Innovative Properties Company Polarizing beam splitters incorporating reflective and absorptive polarizers and image display systems thereof
JP5330993B2 (ja) * 2006-07-31 2013-10-30 スリーエム イノベイティブ プロパティズ カンパニー 光学投影サブシステム
JP5092357B2 (ja) 2006-11-07 2012-12-05 ソニー株式会社 撮像表示装置、撮像表示方法
CA2683728C (en) 2007-04-13 2016-03-29 Nike International Ltd. Vision cognition and coordination testing and training
US20080255949A1 (en) 2007-04-13 2008-10-16 Lucid Systems, Inc. Method and System for Measuring Non-Verbal and Pre-Conscious Responses to External Stimuli
TWI333592B (en) * 2007-04-19 2010-11-21 Coretronic Corp Projection apparatus
JP4883580B2 (ja) 2007-06-05 2012-02-22 独立行政法人産業技術総合研究所 精神的疲労の検出方法、装置及びプログラム
US20080309616A1 (en) 2007-06-13 2008-12-18 Massengill R Kemp Alertness testing method and apparatus
US7750286B2 (en) * 2007-06-19 2010-07-06 Alcatel-Lucent Usa Inc. Compact image projector having a mirror for reflecting a beam received from a polarization beam splitter back to the polarization beam splitter
ES2308939A1 (es) 2007-06-28 2008-12-01 Universidad Politecnica De Madrid Sistema electronico, basado en fpga, para la deteccion en tiempo real del cansancio o la somnolencia de conductores de vehiculos automoviles.
US20090012419A1 (en) 2007-07-06 2009-01-08 Mckee Geoffrey R system and method for performing physiological assessments
US20090036755A1 (en) 2007-07-30 2009-02-05 Neurofocus, Inc. Entity and relationship assessment and extraction using neuro-response measurements
WO2009018582A2 (en) 2007-08-02 2009-02-05 Miralex Systems Incorporated Apparatus and methods for configuration and optimization of image sensors for gaze tracking applications
US7543938B2 (en) 2007-09-17 2009-06-09 Tsutomu Nakada Methods and devices for prevention and treatment of myopia and fatigue
US20090082692A1 (en) 2007-09-25 2009-03-26 Hale Kelly S System And Method For The Real-Time Evaluation Of Time-Locked Physiological Measures
US7614745B2 (en) 2007-11-02 2009-11-10 Visionetx, Inc. System for analyzing eye responses to automatically determine impairment of a subject
DE102007056528B3 (de) 2007-11-16 2009-04-02 Seereal Technologies S.A. Verfahren und Vorrichtung zum Auffinden und Verfolgen von Augenpaaren
GB2454916A (en) 2007-11-23 2009-05-27 Dimuth Jayawarna Fatigue monitoring using facial images
JP2009150974A (ja) 2007-12-19 2009-07-09 Olympus Corp 投影型表示装置
US7938785B2 (en) 2007-12-27 2011-05-10 Teledyne Scientific & Imaging, Llc Fusion-based spatio-temporal feature detection for robust classification of instantaneous changes in pupil response as a correlate of cognitive response
US20100185113A1 (en) 2009-01-21 2010-07-22 Teledyne Scientific & Imaging, Llc Coordinating System Responses Based on an Operator's Cognitive Response to a Relevant Stimulus and to the Position of the Stimulus in the Operator's Field of View
US8265743B2 (en) 2007-12-27 2012-09-11 Teledyne Scientific & Imaging, Llc Fixation-locked measurement of brain responses to stimuli
US8511827B2 (en) * 2008-01-22 2013-08-20 The Arizona Board Of Regents On Behalf Of The University Of Arizona Head-mounted projection display using reflective microdisplays
WO2009095406A1 (en) * 2008-01-28 2009-08-06 Upstream Engineering Oy Double-reverse total-internal-reflection-prism optical engine
JP2009180792A (ja) 2008-01-29 2009-08-13 Olympus Corp 投影型表示装置
WO2009097430A1 (en) 2008-02-01 2009-08-06 Lonky Martin L Methods and techniques to measure, map and correlate ocular micro-tremor (omt) signals
DE102008028751A1 (de) 2008-03-18 2009-09-24 Bude, Friedrich, Dr. Verfahren und Vorrichtung zur Erhaltung, Wiedererlangung oder Erhöhung der Aufmerksamkeit und Wachheit einer ermüdeten Person
AT506667B1 (de) 2008-04-03 2013-06-15 Gesunde Arbeitsplatzsysteme Gmbh Verfahren zum prüfen des ermüdungsgrades einer ein gerät bedienenden person
JP2009265140A (ja) 2008-04-22 2009-11-12 Olympus Corp 投影装置
JP5363061B2 (ja) * 2008-10-10 2013-12-11 富士フイルム株式会社 単板投写型表示装置
US9495589B2 (en) 2009-01-26 2016-11-15 Tobii Ab Detection of gaze point assisted by optical reference signal
US20100195056A1 (en) 2009-02-05 2010-08-05 Jinn-Chou Yoo Hybrid polarization beam splitter architecture and optical projection system thereof
US8363721B2 (en) 2009-03-26 2013-01-29 Cisco Technology, Inc. Reference picture prediction for video coding
US20100324454A1 (en) 2009-06-22 2010-12-23 Kircher John C Deception detection using oculomotor movements
US8100532B2 (en) 2009-07-09 2012-01-24 Nike, Inc. Eye and body movement tracking for testing and/or training
EP3338621B1 (en) 2009-07-16 2019-08-07 Tobii AB Eye detection unit using parallel data flow
US8323216B2 (en) 2009-09-29 2012-12-04 William Fabian System and method for applied kinesiology feedback
GB0920809D0 (en) 2009-11-27 2010-01-13 Qinetiq Ltd Eye tracking apparatus
CN104410788B (zh) 2009-12-28 2019-05-10 株式会社尼康 摄像装置
US20110164227A1 (en) * 2010-01-06 2011-07-07 Dongha Kim Optical system for a digital light projection system including a multi-light path lens
JP2011175126A (ja) 2010-02-25 2011-09-08 Panasonic Corp 画像表示装置
US8964298B2 (en) * 2010-02-28 2015-02-24 Microsoft Corporation Video display modification based on sensor input for a see-through near-to-eye display
GB201004346D0 (en) 2010-03-16 2010-04-28 Qinetiq Ltd Eye tracking apparatus
EP2572231A2 (en) * 2010-05-19 2013-03-27 3M Innovative Properties Company Fly eye integrator polarization converter
KR20130107209A (ko) * 2010-05-19 2013-10-01 쓰리엠 이노베이티브 프로퍼티즈 컴파니 편광된 프로젝션 조명기
EP2571417A1 (en) 2010-05-20 2013-03-27 BAE Systems PLC Eye monitor for monitoring the size of a pupil
JP5958825B2 (ja) 2010-06-17 2016-08-02 日本電気株式会社 感性評価システム、感性評価方法、およびプログラム
US20140187322A1 (en) 2010-06-18 2014-07-03 Alexander Luchinskiy Method of Interaction with a Computer, Smartphone or Computer Game
US20120050144A1 (en) 2010-08-26 2012-03-01 Clayton Richard Morlock Wearable augmented reality computing apparatus
CN103154815A (zh) * 2010-09-22 2013-06-12 3M创新有限公司 倾斜的二向色合色器iii
JP2013546005A (ja) 2010-09-22 2013-12-26 スリーエム イノベイティブ プロパティズ カンパニー 傾斜式ダイクロイック色合成器ｉ
JP2013545122A (ja) 2010-09-22 2013-12-19 スリーエム イノベイティブ プロパティズ カンパニー 傾斜式ダイクロイック色合成器ｉｉ
DE102010047053A1 (de) 2010-09-29 2012-03-29 Carl Zeiss Meditec Ag Verfahren und Vorrichtung zur interferometrischen Bestimmung verschiedener biometrischer Parameter eines Auges
JP5762086B2 (ja) * 2011-03-31 2015-08-12 キヤノン株式会社 偏光分離素子および画像投射装置
CN102759801A (zh) * 2011-04-25 2012-10-31 旭丽电子(广州)有限公司 立体光学元件、其制造方法以及投影设备
CN103281959A (zh) 2011-05-20 2013-09-04 松下电器产业株式会社 视觉疲劳度测定装置、视觉疲劳度测定方法、视觉疲劳度测定系统及三维眼镜
US9526455B2 (en) 2011-07-05 2016-12-27 Saudi Arabian Oil Company Systems, computer medium and computer-implemented methods for monitoring and improving health and productivity of employees
US9710788B2 (en) 2011-07-05 2017-07-18 Saudi Arabian Oil Company Computer mouse system and associated, computer medium and computer-implemented methods for monitoring and improving health and productivity of employees
JP5891628B2 (ja) * 2011-07-15 2016-03-23 株式会社リコー 画像形成装置
US20140330159A1 (en) 2011-09-26 2014-11-06 Beth Israel Deaconess Medical Center, Inc. Quantitative methods and systems for neurological assessment
US20130090562A1 (en) 2011-10-07 2013-04-11 Baycrest Centre For Geriatric Care Methods and systems for assessing cognitive function
CA2754835C (en) 2011-10-07 2021-06-15 Baycrest Centre For Geriatric Care Methods and systems for assessing cognitive function
EP2771734B1 (en) 2011-10-24 2017-07-19 3M Innovative Properties Company Tilted dichroic polarizing beamsplitter
TW201327014A (zh) 2011-10-24 2013-07-01 3M Innovative Properties Co 偏斜雙色偏光之色彩結合器
US8611015B2 (en) 2011-11-22 2013-12-17 Google Inc. User interface
CA2855984C (en) 2011-11-22 2023-03-14 Dignity Health System and method for using microsaccade dynamics to measure attentional response to a stimulus
NL2009806A (en) 2011-12-05 2013-06-10 Asml Netherlands Bv Lithographic apparatus and device manufacturing method.
WO2013086075A1 (en) 2011-12-08 2013-06-13 Volk Optical, Inc. Retinal imaging device including position-sensitive optical tracking sensor
TWI530788B (zh) 2011-12-30 2016-04-21 富智康（香港）有限公司 使用電子裝置時緩解視覺疲勞的系統及方法
KR101597616B1 (ko) 2011-12-30 2016-02-25 인텔 코포레이션 디지털 문서에 대한 인지 부하 평가
GB201200122D0 (en) 2012-01-05 2012-02-15 Univ Aberdeen An apparatus and a method for psychiatric evaluation
KR20250057956A (ko) 2012-01-06 2025-04-29 이-비전 스마트 옵틱스, 아이엔씨. 안경류 도킹 스테이션 및 전자 모듈
AU2013212169B2 (en) 2012-01-24 2016-09-08 Augmented Vision Inc. Compact eye-tracked head-mounted display
FR2987918B1 (fr) 2012-03-08 2014-12-26 Essilor Int Procede de determination d'au moins une caracteristique de posture de la tete d'un porteur d'une paire de lunettes
JP5665241B2 (ja) 2012-03-21 2015-02-04 パナソニックＩｐマネジメント株式会社 眼球疲労判定装置およびその作動方法
US8749886B2 (en) * 2012-03-21 2014-06-10 Google Inc. Wide-angle wide band polarizing beam splitter
US9082011B2 (en) 2012-03-28 2015-07-14 Texas State University—San Marcos Person identification using ocular biometrics with liveness detection
US10617351B2 (en) 2012-04-23 2020-04-14 Sackett Solutions & Innovations Llc Cognitive biometric systems to monitor emotions and stress
ES2589000T3 (es) 2012-04-24 2016-11-08 Universitat De Barcelona Sistema y procedimiento de medir la atención
US8864310B2 (en) 2012-05-01 2014-10-21 RightEye, LLC Systems and methods for evaluating human eye tracking
US9004687B2 (en) 2012-05-18 2015-04-14 Sync-Think, Inc. Eye tracking headset and system for neuropsychological testing including the detection of brain damage
US20130332160A1 (en) 2012-06-12 2013-12-12 John G. Posa Smart phone with self-training, lip-reading and eye-tracking capabilities
US8808179B1 (en) 2012-08-06 2014-08-19 James Z. Cinberg Method and associated apparatus for detecting minor traumatic brain injury
US8951046B2 (en) 2012-08-10 2015-02-10 Sync-Think, Inc. Desktop-based opto-cognitive device and system for cognitive assessment
EP2888624A1 (en) 2012-08-21 2015-07-01 3M Innovative Properties Company Viewing device
US9345402B2 (en) 2012-09-11 2016-05-24 Augmented Vision, Inc. Compact eye imaging and eye tracking apparatus
EP2712541B1 (en) 2012-09-27 2015-12-30 SensoMotoric Instruments Gesellschaft für innovative Sensorik mbH Tiled image based scanning for head and/or eye position for eye tracking
US10888274B2 (en) 2012-11-14 2021-01-12 Victor M. Pedro Method for diagnosis of and therapy for a subject having a central nervous system disorder
US10085688B2 (en) 2012-11-20 2018-10-02 El-Mar Inc. Method of identifying an individual with a disorder or efficacy of a treatment of a disorder
US20140154651A1 (en) 2012-12-04 2014-06-05 Sync-Think, Inc. Quantifying peak cognitive performance using graduated difficulty
WO2014093085A1 (en) 2012-12-10 2014-06-19 3M Innovative Properties Company Reflective fly eye array illuminator
US9101297B2 (en) 2012-12-11 2015-08-11 Elwha Llc Time-based unobtrusive active eye interrogation
US9039180B2 (en) 2012-12-11 2015-05-26 Elwah LLC Self-aligning unobtrusive active eye interrogation
US9039179B2 (en) 2012-12-11 2015-05-26 Elwha Llc Unobtrusive active eye interrogation
US20140163329A1 (en) 2012-12-11 2014-06-12 Elwha Llc Unobtrusive Active Eye Interrogation with Gaze Attractor
EP2931113A4 (en) 2012-12-11 2016-09-14 Allen L Brown Jr ACTIVE DISCRETE EYE INTERROGATION
US9958699B2 (en) * 2012-12-21 2018-05-01 3M Innovative Properties Company Hybrid polarizing beam splitter
US20140211173A1 (en) * 2013-01-30 2014-07-31 3M Innovative Properties Company Optical projection subsystem
US9063331B2 (en) * 2013-02-26 2015-06-23 Microsoft Technology Licensing, Llc Optical system for near-eye display
US9179833B2 (en) 2013-02-28 2015-11-10 Carl Zeiss Meditec, Inc. Systems and methods for improved ease and accuracy of gaze tracking
EP2967314B1 (en) 2013-03-11 2021-06-02 Children's Healthcare Of Atlanta, Inc. Methods for detection of cognitive and developmental conditions
EP2991541A4 (en) 2013-03-13 2016-12-14 Henry M Jackson Found Advancement Military Medicine Inc IMPROVED NEUROPSYCHOLOGICAL ASSESSMENT WITH EYE INTRODUCTION
GB2511868B (en) 2013-03-15 2020-07-15 Tobii Ab Eye/gaze tracker and method of tracking the position of an eye and/or a gaze point of a subject
US9801539B2 (en) 2013-05-23 2017-10-31 Stiftung Caesar—Center Of Advanced European Studies And Research Ocular Videography System
WO2015034801A2 (en) 2013-09-06 2015-03-12 3M Innovative Properties Company Head mounted display with eye tracking
US9756300B2 (en) * 2013-11-20 2017-09-05 Texas Instruments Incorporated Compact optical projection apparatus
US10545340B2 (en) 2014-04-09 2020-01-28 3M Innovative Properties Company Head mounted display and low conspicuity pupil illuminator
EP3845221B1 (en) 2014-06-13 2023-12-13 Ratiopharm GmbH Solid state forms of sofosbuvir
JP7043262B2 (ja) 2015-06-30 2022-03-29 スリーエム イノベイティブ プロパティズ カンパニー 照明器

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5882774A (en) 1993-12-21 1999-03-16 Minnesota Mining And Manufacturing Company Optical film
US6609795B2 (en) 2001-06-11 2003-08-26 3M Innovative Properties Company Polarizing beam splitter

Also Published As

Publication number Publication date
US20200089005A1 (en) 2020-03-19
KR20180021086A (ko) 2018-02-28
WO2017003778A2 (en) 2017-01-05
US10514553B2 (en) 2019-12-24
WO2017003719A3 (en) 2017-02-23
US20180180980A1 (en) 2018-06-28
TW201716826A (zh) 2017-05-16
WO2017003778A3 (en) 2017-02-16
JP2018523158A (ja) 2018-08-16
US11693243B2 (en) 2023-07-04
JP6873061B2 (ja) 2021-05-19
CN107710050A (zh) 2018-02-16
CN107735719A (zh) 2018-02-23
US20190004327A1 (en) 2019-01-03
CN107735719B (zh) 2024-01-26
JP2018523157A (ja) 2018-08-16
US11061233B2 (en) 2021-07-13
TW201713990A (en) 2017-04-16
JP7043262B2 (ja) 2022-03-29

Similar Documents

Publication Publication Date Title
US11693243B2 (en) Polarizing beam splitting system
US11675191B2 (en) Head mounted display and low conspicuity pupil illuminator
CN113748366B (zh) 光波导分束器
US10459220B2 (en) Systems, devices, and methods for laser eye tracking in wearable heads-up displays
EP3721286B1 (en) Compact multi-color beam combiner using a geometric phase lens
US10692224B1 (en) Estimation of absolute depth from polarization measurements
US10025101B2 (en) Dynamic draft for Fresnel lenses
US10585477B1 (en) Patterned optical filter for eye tracking
US10725292B2 (en) Gaze-tracking system and aperture device
US10133076B2 (en) Hybrid fresnel lens with reduced artifacts
US10592739B2 (en) Gaze-tracking system and method of tracking user's gaze
KR101619651B1 (ko) 운전자 감시장치 및 그의 조명제어방법
US20240004465A1 (en) Eye gaze tracking system and virtual image display device
CN110361746B (zh) 接近传感器系统、方法及耳机
US20230148959A1 (en) Devices and Methods for Sensing Brain Blood Flow Using Head Mounted Display Devices

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16735769

Country of ref document: EP

Kind code of ref document: A2

WWE Wipo information: entry into national phase

Ref document number: 15737380

Country of ref document: US

ENP Entry into the national phase

Ref document number: 2017567626

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 20187001779

Country of ref document: KR

Kind code of ref document: A

122 Ep: pct application non-entry in european phase

Ref document number: 16735769

Country of ref document: EP

Kind code of ref document: A2