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WO2018127777A1 - Lunettes de protection à réalité augmentée - Google Patents

Lunettes de protection à réalité augmentée Download PDF

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Publication number
WO2018127777A1
WO2018127777A1 PCT/IB2017/058509 IB2017058509W WO2018127777A1 WO 2018127777 A1 WO2018127777 A1 WO 2018127777A1 IB 2017058509 W IB2017058509 W IB 2017058509W WO 2018127777 A1 WO2018127777 A1 WO 2018127777A1
Authority
WO
WIPO (PCT)
Prior art keywords
optical engine
frame
user
augmented reality
front portion
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/IB2017/058509
Other languages
English (en)
Inventor
Fabio BORSANI
Mauro Coccoli
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.)
UNIVET Srl
Original Assignee
UNIVET Srl
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 UNIVET Srl filed Critical UNIVET Srl
Publication of WO2018127777A1 publication Critical patent/WO2018127777A1/fr
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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F9/00—Methods or devices for treatment of the eyes; Devices for putting in contact-lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/02—Goggles
    • 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
    • G02B27/0149—Head-up displays characterised by mechanical features
    • G02B2027/0154—Head-up displays characterised by mechanical features with movable elements
    • G02B2027/0159—Head-up displays characterised by mechanical features with movable elements with mechanical means other than scaning means for positioning the whole image
    • 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
    • G02B2027/0174—Head mounted characterised by optical features holographic
    • 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
    • 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
    • G02B27/0179—Display position adjusting means not related to the information to be displayed
    • G02B2027/0181—Adaptation to the pilot/driver
    • 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
    • G02B2027/0192—Supplementary details
    • G02B2027/0196—Supplementary details having transparent supporting structure for display mounting, e.g. to a window or a windshield

Definitions

  • the present invention relates to protective goggles, in particular for industrial use, provided with a device for augmented reality.
  • Goggles provided with a device for augmented reality have recently been proposed, also known as "Smart Glasses”. They are wearable optoelectronic devices, i.e. goggles provided with electronic resources (such as displays, microprocessors, sensors) and optical resources (such as light guides, lenses and prisms), which allow the user to see, for example superimposed on the real image, graphic and/or alphanumeric information conveyed by an external system.
  • electronic resources such as displays, microprocessors, sensors
  • optical resources such as light guides, lenses and prisms
  • augmented reality goggles can find many applications, for example: Management of warehouse item collection data, assembly instructions, information on machine operation, real-time displaying of clinical data, simultaneous translations, signaling of dangerous situations, and many more.
  • figure 1 is a perspective view of the protective goggles according to the invention.
  • FIG. 1 is an exploded view of the goggles
  • FIG. 3 is a rear perspective view of the goggles with protective lenses separate from the frame;
  • FIG. 4 is a rear perspective view of the goggles with the augmented reality device separate from the frame;
  • FIG. 5 and 5a are two rear views of the goggles, which show respective adjustments of the position of the augmented reality device;
  • FIG. 6 is a rear perspective view of the protective goggles according to the invention superimposed on glasses with corrective lenses;
  • FIG. 7 shows a user wearing the protective goggles according to the invention on glasses with corrective lenses ;
  • figure 8 is a perspective view of the protective goggles, which highlights a portable spare battery pack, separate from the supply and control unit of the augmented reality device;
  • FIG. 9 is a perspective view of a portion of the interior of the protective goggles in an alternative embodiment ;
  • FIG. 10 is an axial section of the means for connecting the augmented reality device to the frame of the goggles, in the embodiment in figure 9;
  • FIG. 11 is a perspective view of a portion of the upper part of the frame of the goggles, in a further alternative embodiment.
  • FIG. 12 and 12a show a view of a portion of a frame of the goggles, with parts separated and assembled, respectively, in an alternative embodiment with an interchangeable nose.
  • 1 indicates protective goggles as a whole, provided with an augmented reality device, in particular for industrial use.
  • the goggles 1 comprise a frame 10, protective lenses 30 fixed to the frame 10, and at least one augmented reality device 50.
  • the frame 10 comprises a front portion 102.
  • the frame also comprises two side legs 104, each hinged to a corresponding end of the front portion 102.
  • an elastic band adapted to surround the user' s head is connected to the front portion 102.
  • the front portion 102 essentially consists of a rod-like element 102' conveniently shaped so as to cover the user' s forehead, extending between the temple areas.
  • the protective lenses 30 extend from the front and side with respect to the user' s face so as to protect the eyes from external agents from front, side, top and bottom directions.
  • the protective lenses 30 comprise a front portion 301, which protects the eyes at the front, and a perimetral portion 304, which, being inclined with respect to the front portion 301, joins the latter to the user's forehead, cheekbones, nose and temple areas, thus protecting the eyes in lateral or radial directions.
  • the protective lenses 30 are provided with a support element 302 on the nose.
  • the protective lenses 30 are made of transparent polycarbonate and are coated and/or undergo treatments so as to become scratchproof .
  • the protective lenses 30 are suitable for ensuring conformity of the goggles to the safety standards related to PPE products (Personal Protective Equipment) , and in particular compliance with the standard EN 166, cat. 2, impact resistance F(T) .
  • the augmented reality device 50 comprises an optical engine 502 and a holographic light guide 504.
  • the optical engine 502 is adapted to generate and project graphic and/or alphanumeric information in the form of light waves.
  • the holographic light guide 504 extends from the optical engine 502 and is adapted to receive, guide and emit the light waves in a predetermined direction.
  • the optical engine 502 includes a micro-display the pixels of which are activated according to the information to be displayed.
  • the image generated on the micro-display is projected, by means of a lens system also contained in the optical engine 502, onto a proximal end portion of the holographic light guide 504, thus creating a hologram of the image produced by the micro-display on said proximal end portion.
  • Such a hologram is transmitted to a distal area of the holographic light guide 504 by reflection means formed inside the holographic light guide 504, so as to be transmitted towards the user's eye.
  • the holographic light guide 504 is in the shape of a plate having a transmittance equal to at least 70%, preferably higher than 80%.
  • the thickness of such a plate, including protective layers, is equal to or lower than 3 mm. Therefore, when the augmented reality device is inactive, the holographic light guide 504 is substantially transparent and does not alter the user's vision even if it is placed in front of the eye.
  • the optical engine 502 is integrated into a casing 502' fixed to one end of the front portion 102 of the frame 10 so as to extend laterally with respect to the user's eye. In other words, the optical engine 502 extends at the temple area, i.e. between the outer end of the eye and the front end of the ear.
  • the holographic light guide 504 has a proximal end fixed to the front end of the optical engine 502, which extends towards the center of the user's face, between a respective eye and the protective lenses 30, so as to emit the light waves, i.e. the hologram of the image projected by the optical engine 502, towards the user's eye.
  • the front portion 301 of the protective lenses 30 is superimposed on the holographic light guide 504.
  • the protective lenses 30, with the user's face delimit a protected chamber 30', which houses the holographic light guide 504.
  • the graphic and/or alphanumeric information generated by the augmented reality device 50 is clearly seen by the user, superimposed on the real image, as shown for example in figures 5 and 5a.
  • the perimetral portion 304 of the protective lenses forms a side pocket 305 adapted to enclose the optical engine 502 on the outside.
  • the augmented reality device 50 is completely protected by the protective lenses 30.
  • the optical engine 502 is connected to the front portion 102 of the frame 10 by adjustment means 70 of the position of the augmented reality device 50.
  • the position of the holographic light guide 504 can be adapted to the shape and size of the user's face, so that the holographic image can easily be focused by the user without looking away from what he/she is paying attention to .
  • the adjustment means 70 comprise translation means 702 operable by the user to cause a horizontal displacement of the augmented reality device 50 ( Figure 5) .
  • translation means 702 comprise a micrometric screw system.
  • an end maneuvering portion 704 of the translation means 702 projects from the protective lenses 30 through a gap 306, for example obtained in the perimetral portion 304.
  • the end maneuvering portion 704 extends above the eye and is facing sideways, externally with respect to the face, as shown in the drawings. In this way, the user can easily maneuver the translation means 702, without hindering his/her view.
  • the adjustment means 70 also comprise a universal joint 710, for example made with a ball joint, adapted to permit oscillations in space of the augmented reality device 30.
  • the optical engine 502 and the holographic light guide 504 integral therewith can oscillate with respect to a horizontal axis parallel to the holographic light guide 504, to a horizontal axis perpendicular to the holographic light guide 504, and to a vertical axis.
  • the translation means 702 extend above the optical engine 502 and the holographic light guide 504, and the universal joint 710 connects the optical engine 502 to the translation means 702.
  • the side pocket 305 is spaced from the optical engine 502, at least at the free end of the optical engine 502, so as to allow the user to grasp such a free end with his/her fingers, to change its position by means of the universal joint 710.
  • the protective lenses 30 are detachably connected to the frame 10.
  • the frame 10 is provided with a hollow front seat 110, obtained in a projection, for example, which extends from the front portion 102, for example in a central position, and a lateral coupling tooth 112, which extends from a lateral extension 114 of the front portion 102.
  • a front coupling tooth 310 adapted to be engaged with the hollow front seat 110 by means of a shaped coupling, and a lateral seat 312 adapted to receive the lateral coupling tooth 112 by means of a shaped coupling, are obtained in the protective lenses 30.
  • the teeth and the seats thereof can be coupled by means of interference, pressure or by snapping .
  • the hollow front seat 110 and the lateral coupling tooth 112 are obtained in a coupling interface detachably fixed to the frame 10.
  • the releasable coupling between the protective lenses 30 and the frame 10 allows only the lenses 30 to be replaced, for example in the event of damage, preserving the frame 10 and the augmented reality device 50.
  • the augmented reality device 50 is detachably connected to the frame 10.
  • the optical engine 502 is detachably connected to the translation means 702, which can be fixed, in turn, permanently or detachably to the front portion 102 of the frame 10.
  • the ball joint of the optical engine 502 can be coupled by means of pressure or magnetically to a respective spherical seat obtained in the translation means 702.
  • an augmented reality device 50 which obviously constitutes the most complex and costly part of the protective goggles, can be shared by several protective goggles, for example in a company.
  • the protective lenses 30 are shaped so as to allow the user to wear corrective eyewear 80, i.e. provided with graduated lenses, inside the protective goggles 1.
  • the holographic guide 504 is interposed between one lens of the graduated eyewear 80 and one lens of the protective lenses 30.
  • the protective lenses 30 are chosen so that the protected chamber 30' has a volume such as to also receive the lenses of the corrective eyewear 80, as well as the holographic light guide 504. Note that, due to the inclination of the optical engine 502 moving away from the user's face, the frame of the corrective eyewear 80 does not interfere with the optical engine 502.
  • the protective lenses 30 are free of distortion effects of the incident optical beams. In other words, the combination of the protective lenses 30 and the holographic light guide 504 does not alter a user' s vision .
  • the optical engine 502 is connected to an external control unit 90.
  • an external control unit 90 acts as a supply unit, being provided, for example, with an internal battery.
  • control unit 90 is connected by cable to the optical engine 502 and dimensioned so that it can easily be carried by the user of the protective goggles 1.
  • the main function of the control unit 90 is to provide the optical engine with the electrical commands to activate the pixels of the micro-display, based on instructions supplied to the control unit, for example by a smartphone or another device provided with a special application program or, as described below, based on data received from sensors mounted to the frame or provided in the frame.
  • control and supply unit 90 When the control and supply unit 90 is provided with a supply battery, it electrically supplies the optical engine 502.
  • control unit 90 can be connected to a portable spare battery pack 902.
  • a battery pack 902 is provided with rechargeable batteries having a far greater capacity with respect to the battery inside the control unit 90 and it can be connected to the control unit 90 to recharge such an internal battery when it is about to go flat.
  • the autonomy of the augmented reality device 50 is improved significantly with respect to the autonomy of the Smart Glasses currently on the market, which is advantageous for use in industrial or professional applications, where the continued operation of the device must be ensured.
  • the autonomy of the augmented reality device is virtually unlimited, being able to replace the spare portable spare battery pack 902, when necessary, with charge while the internal battery continues to operate the same device acting as a "backup" battery.
  • the control unit 90 can easily be carried by the user also when the spare rechargeable battery pack 902 is connected thereto.
  • Figures 9 and 10 show the protective goggles in further alternative embodiments.
  • the adjustment means indicated by 170, consists of a single ball joint 170a.
  • the position of the center of the ball joint 170a is chosen so as to ensure the vision of the hologram for any interpupillary distance, without needing to translate the augmented reality device, but simply by rotating it around the three rotation axes orthogonal to one another.
  • this type of connection allows the desired "displacement" of the virtual image within the user' s field of vision according to the user' s needs and preference. For example, by rotating the augmented reality device upwards, it is possible to have a field of vision free of writing at the bottom (for example for reading operations) .
  • the ball joint 170a comprises a male spherical element 172, which extends downwards from the front portion 102 of the frame 10.
  • the male spherical element 172 is received in a spherical seat 174 obtained in a joint casing 176 integral with the optical engine 502 and extending above the holographic guide 504, where this connects to the optical engine 502.
  • the joint casing 176 is provided in two halves releasably joined to each other to allow a rotation of the augmented reality device with respect to the male spherical element 172 and the successive blockage of the ball joint 170a in the chosen position.
  • the two halves of the joint casing 176 are connected to each other by locking screws 179.
  • the augmented reality device 50 can be rotated by acting manually on the end of the optical engine 502 projecting at the back from the protective pocket 305.
  • the augmented reality device 50 is further protected by the lens 30.
  • the male spherical element 172 extends from a free end of a substantially horizontal arm 178 connected to a central portion of the front portion 102 of the frame 10.
  • the adjustment means 170 also act as electrical connection means between an electrical connector - not shown - provided in the optical engine 502 and sensors and/or actuators mounted to the frame 10.
  • an electrical connector forms a USB port.
  • the protective goggles 1 are provided with sensors and/or actuators, such as, for example, a compass, gyroscope, accelerometer, camera, video camera, infrared camera, temperature sensor, air quality sensor, formaldehyde sensor, radon sensor, CO sensor, C02 sensor, flight time sensor, proximity sensor.
  • sensors and/or actuators such as, for example, a compass, gyroscope, accelerometer, camera, video camera, infrared camera, temperature sensor, air quality sensor, formaldehyde sensor, radon sensor, CO sensor, C02 sensor, flight time sensor, proximity sensor.
  • the frame 10 is provided with an electrical and mechanical interface 200, compatible with a communication system of a digital type and/or an analog type, adapted to detachably connect at least one external electronic device 210, for example a camera.
  • a communication system of a digital type and/or an analog type adapted to detachably connect at least one external electronic device 210, for example a camera.
  • an electrical cable 220 is passed through the ball joint 170a, for example between the male spherical element 172 and the spherical seat 174, and in a passage 222 obtained in the arm 178.
  • the sensors and/or actuators are advantageously placed directly on the frame 10 and thus have the same "viewpoint" as the operator.
  • the control unit 90 in this case, is not only a simple communication device, but a real calculation unit.
  • control unit 90 processes the data from the sensors mounted to the frame and therefore commands the optical engine 502 to generate a holographic image according to the data received.
  • a nose 230 is used, detachably connected to the frame 10.
  • the nose 230 is snap coupled to the end of a rod 232, which extends from the front portion 102 of the frame 10.
  • the nose 230 can have a plastically deformable core so as to be adapted to any shape or size of the user's face.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Glass Compositions (AREA)
  • Window Of Vehicle (AREA)

Abstract

L'invention concerne des lunettes de protection, en particulier à usage industriel, comprenant un cadre (10), des lentilles de protection (30) fixées sur le cadre (10), et au moins un dispositif de réalité augmentée (50) comprenant un moteur optique (502), conçu pour générer et projeter des informations graphiques et/ou alphanumériques sous la forme d'ondes lumineuses, et un guide de lumière holographique (504), qui s'étend à partir dudit moteur optique et qui est conçu pour recevoir, guider et émettre lesdites ondes lumineuses. Le moteur optique (502) est fixé à une extrémité de la partie avant (102) du cadre (10), de façon à s'étendre latéralement par rapport à l'oeil de l'utilisateur. Le guide de lumière holographique (504) se présente sous la forme d'une plaque ayant une transmittance égale à au moins 80 % et s'étendant vers le centre du visage de l'utilisateur.
PCT/IB2017/058509 2017-01-04 2017-12-29 Lunettes de protection à réalité augmentée Ceased WO2018127777A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102017000000585A IT201700000585A1 (it) 2017-01-04 2017-01-04 Occhiali di protezione a realta' aumentata
IT102017000000585 2017-01-04

Publications (1)

Publication Number Publication Date
WO2018127777A1 true WO2018127777A1 (fr) 2018-07-12

Family

ID=58671796

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2017/058509 Ceased WO2018127777A1 (fr) 2017-01-04 2017-12-29 Lunettes de protection à réalité augmentée

Country Status (2)

Country Link
IT (1) IT201700000585A1 (fr)
WO (1) WO2018127777A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019077478A1 (fr) * 2017-10-17 2019-04-25 Eye Tech Lab S.R.L. Dispositif de protection pour la protection des yeux

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5767820A (en) * 1995-05-09 1998-06-16 Virtual Research Systems Head-mounted visual display apparatus
US20070008624A1 (en) * 2004-03-12 2007-01-11 Nikon Corporation Optical image display system and image display unit
US20110221656A1 (en) * 2010-02-28 2011-09-15 Osterhout Group, Inc. Displayed content vision correction with electrically adjustable lens
FR2985323A1 (fr) * 2011-12-30 2013-07-05 Thales Sa Equipement de vision en realite augmentee comportant un masque
US20140232651A1 (en) * 2013-02-15 2014-08-21 Google Inc. Cascading optics in optical combiners of head mounted displays
US20150123881A1 (en) * 2012-05-14 2015-05-07 Olympus Corporation Head-mounted display device
US20150309534A1 (en) * 2014-04-25 2015-10-29 Osterhout Group, Inc. Ear horn assembly for headworn computer
US20150378160A1 (en) * 2014-06-30 2015-12-31 Lg Electronics Inc. Glasses-type mobile terminal
US20160246059A1 (en) * 2015-02-24 2016-08-25 Kopin Corporation Electronic eyewear viewing device
US20160357021A1 (en) * 2011-06-29 2016-12-08 Intel Corporation Modular heads-up display systems

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5767820A (en) * 1995-05-09 1998-06-16 Virtual Research Systems Head-mounted visual display apparatus
US20070008624A1 (en) * 2004-03-12 2007-01-11 Nikon Corporation Optical image display system and image display unit
US20110221656A1 (en) * 2010-02-28 2011-09-15 Osterhout Group, Inc. Displayed content vision correction with electrically adjustable lens
US20160357021A1 (en) * 2011-06-29 2016-12-08 Intel Corporation Modular heads-up display systems
FR2985323A1 (fr) * 2011-12-30 2013-07-05 Thales Sa Equipement de vision en realite augmentee comportant un masque
US20150123881A1 (en) * 2012-05-14 2015-05-07 Olympus Corporation Head-mounted display device
US20140232651A1 (en) * 2013-02-15 2014-08-21 Google Inc. Cascading optics in optical combiners of head mounted displays
US20150309534A1 (en) * 2014-04-25 2015-10-29 Osterhout Group, Inc. Ear horn assembly for headworn computer
US20150378160A1 (en) * 2014-06-30 2015-12-31 Lg Electronics Inc. Glasses-type mobile terminal
US20160246059A1 (en) * 2015-02-24 2016-08-25 Kopin Corporation Electronic eyewear viewing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019077478A1 (fr) * 2017-10-17 2019-04-25 Eye Tech Lab S.R.L. Dispositif de protection pour la protection des yeux

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