Patent Description:
The interest in some wearable devices such as augmented reality headsets is decreasing due to built-in limitations. For example, augmented reality headsets are oftentimes large, heavy, and expensive units suitable only for a static user experience involving gaming, video, or other indoor-type content.

Due to the large size, augmented reality headsets need to be tightly strapped around the head of the user, making this kind of device less of an actual wearable especially since it is not very suitable for outdoor use.

Further, the large size and heavy weight makes users unwilling to wear such augmented reality headsets on a daily basis. Also, the complexity of current augmented reality headsets keeps the price level relatively high, which limits the possibilities for developers to concept new applications without having to make significant investments in hardware.

Document <CIT>) discloses an eyewear with electrical components, in which the electrical components can be partially or completely internal to eyewear.

Document <CIT>) discloses a performance improved spectacle-mounted ocular display apparatus, where the addition of a movable relay mirror mounting assembly provides for image focusing and placement, framing, and orientation/alignment by permitting both translational and rotational movement of the relay mirror.

Document <CIT>) discloses an eyewear with an electronics module that may be located within a housing module of the eyewear.

Document <CIT>) discloses an interactive head-mounted eyepiece with an integrated processor for handling content for display and an integrated image source for introducing the content to an optical assembly through which the user views a surrounding environment and the displayed content.

Document <CIT>) discloses spectacle-mounted display apparatus in which a reflective surface of a partially-transparent eyeglass lens is employed as the primary optical element.

Document <CIT>) discloses an eyeglass mirror.

Document <CIT> (A1) discloses a display device and an electronic apparatus that can form a virtual image being perceived at a particular position and a size of the virtual image perceived is greater than a display size of a display device.

Document <CIT>) discloses wearable computing systems and devices, which can be modules with distinct functionalities that can be connected.

Document <CIT>) discloses body-carryable display devices and systems using E. coherent fiber optic conduit.

It is an object to provide an eyeglass frame for an electronic device according to independent claim <NUM> which improves known solutions and which provides for an increased usability.

According to a first aspect, there is provided an eyeglass frame comprising a front piece and a pair of temples, each temple being hingedly connected to an end of the front piece to allow the temples to move between a folded and an open position, at least one temple comprising an adapter for receiving an electronic device. A frame comprising a front piece and two temples is a well-tried and comparatively comfortable solution to be worn on a user's head. The addition of an adapter for receiving an electronic device allows the frame to not only function as eyeglasses, but also as a lightweight, discrete, and comparatively cheap augmented reality headset.

The temple comprises a primary temple part and a secondary temple part. A first end of the primary temple part is hinged to the front piece. A second end of said secondary temple part is a free end adapted to interact with an ear auricle of the user. A second end of said primary temple part and a first end of said secondary temple part form the adapter. The adapter comprises locking means arranged at one end of each temple part, respectively, for interlocking with the electronic device, facilitating a lightweight frame without unnecessary material consumption.

In a first possible implementation form of the first aspect, the eyeglass frame further comprises at least one optical element connected to the front piece, the optical element being adapted for reflecting light from an electronic device to an eye of a user, the optical element being a discrete component more or less masked by the front piece.

In a second possible implementation form of the first aspect, the optical element comprises a semi-transparent or opaque surface, providing a simple and reliable solution for reflecting light emitted by the electronic device.

In a third possible implementation form of the first aspect, the optical element further comprises optical focusing means, allowing the eyeglass frame to be used for a variety of purposes by a variety of users.

In a fourth possible implementation form of the first aspect, the optical element has at least two degrees of freedom, making the optical element flexible and allowing it to be positioned in a way that suits the user.

In a fifth possible implementation form of the first aspect, the front piece comprises a shaft element, the optical element being detachably connected to the shaft element by means of a C-shaped gripper adapted for snapping onto the shaft element, allowing the optical element to be removed from the eyeglass frame, and the eyeglass frame to be used as a regular pair of eyeglasses or for example as a mere recording device.

In a seventh possible implementation form of the first aspect, the adapter further comprises a cover plate for covering one side of the electronic device, providing a stable and protective structure for maintaining the electronic device within the adapter.

In an eleventh possible implementation form of the first aspect, the eyeglass frame further comprises at least one electronic device, allowing the eyeglass frame to be used e.g. as an augmented reality headset.

In a twelfth possible implementation form of the first aspect, the electronic device comprises at least one of a display, a speaker, a microphone, a camera, a sensor, and/or a vibration motor, facilitating use of the eyeglass frame for a variety of applications.

In a thirteenth possible implementation form of the first aspect, the front piece comprises an opening accommodating a camera viewing angle of the camera, allowing the eyeglass frame to be used for recording its surroundings.

In a fourteenth possible implementation form of the first aspect, at least one of the temples comprises an audio channel, the audio channel having an audio inlet arranged within the adapter, the audio channel having an audio outlet adapted for being in an ear region of a user, allowing the eyeglass frame to be used for transmitting audio to the user.

In a fifteenth possible implementation form of the first aspect, the temple is provided with a protruding element, the protruding element comprising the audio outlet, facilitating more focused and discrete audio transmission to the user.

<FIG> shows an eyeglass frame <NUM>, carrying a portable electronic device <NUM> and an optical element <NUM>. The assembly of <FIG>, including the electronic device <NUM> may also be referred to as smart glasses. <FIG> also shows, schematically by means of a dashed line, how an image shown on the display <NUM> of the electronic device is reflected to the eye of the user by means of the optical element <NUM>.

The eyeglass frame <NUM> comprises a front piece <NUM>, which may be adapted to rest on the nasopharynx of the user and for receiving prescriptive lenses <NUM> and/or tinted lenses <NUM>, and two temples <NUM>. A first end of each temple <NUM> is hingedly connected to one end of the front piece <NUM> to allow the temples <NUM> to move between a folded and an open position, the open position being utilized when the eyeglass frame is worn by a user. A second end of each temple <NUM> is a free end adapted to interact with, e.g. rest upon or curve around, the ear auricle of the user.

At least one of the two temples <NUM> comprises an adapter <NUM> for receiving an electronic device <NUM>, e.g., in the form of a smart watch. In one possible embodiment, both temples <NUM> comprise an adapter <NUM> for receiving an electronic device <NUM>, allowing said eyeglass frame <NUM> to be provided with two electronic devices <NUM>.

The eyeglass frame <NUM> may also be provided with two optical elements <NUM>. In an embodiment comprising two electronic devices <NUM> and two optical elements <NUM>, each optical element <NUM> is preferably a reflective element adapted for reflecting light transmitted by the display of an electronic device <NUM> to an eye of the user.

The adapter <NUM> at least partially has larger outer dimensions than the remainder of the temple, e.g. in a plane approximately parallel with the face of the user or in a direction perpendicular to the extension (longitudinal) direction of the temple. The adapter bulges outwards in order to at least partially surround and cover the outer edge of the electronic device <NUM>, i.e., the inner edge surface of the adapter <NUM> is at least partially concave such that it at least partially corresponds to the circumference of the electronic device <NUM>, should the electronic device <NUM> have a circular shape. Clearly the adapter may be formed to correspond an electronic device having any shape. The adapted may thus be for instance rectangular- or square-shaped. Such corresponding shapes allow the electronic device <NUM> to be firmly received and maintained within the adapter <NUM>, while still allowing the eyewear frame <NUM>, more particularly the temple <NUM> to be as lightweight and comfortable as possible for the user.

Further, the adapter <NUM> is arranged such that the electronic device <NUM> can only be connected to the eyeglass frame <NUM> in one position, this position being one where possible features such as display <NUM>, speaker <NUM>, microphone <NUM>, and camera <NUM> are all arranged in their one correct position. The correct position in this context is a position that allows correct functioning of the assembly including the eyeglass frame and the electronic device. This means for instance that in the final position of the electronic device the content as will be descried in detail below. In one embodiment, the electronic device <NUM> is arranged such that the display <NUM> is directed inwards, toward and parallel with the temple of a user, and the camera <NUM> is directed forward, toward the front piece <NUM> of the eyeglass frame <NUM>.

In one embodiment, the front piece <NUM> comprises a shaft element <NUM>, arranged on, or adjacent to, the bridge of the front piece <NUM>. The shaft element <NUM> is preferably arranged above the nose pads of the front piece <NUM>, and extends essentially in parallel with the main plane of the front piece <NUM>, on the inner side of the front piece <NUM>, when the eyeglass frame <NUM> is worn by the user.

The optical element <NUM> may be detachably connected to the shaft element <NUM> by means of a C-shaped gripper <NUM> adapted for snapping onto the shaft element <NUM>. In other words, the optical element is releasably attached to the front piece <NUM> of the eyeglass frame <NUM>. The optical element <NUM> may also be permanently connected to the front piece <NUM> by means of a ball joint.

The optical element <NUM> may comprise an arm <NUM>, which preferably is plastically deformable such that the optical element <NUM> can be adapted to a specific user and/or situation. The arm <NUM> extends from the above-mentioned gripper <NUM>, as shown in <FIG>, or ball joint, to an optical reflection means <NUM>, which is adapted for reflecting light emitted by the display <NUM> of the electronic device <NUM> to the eye of the user. The optical reflection means <NUM> may comprise a semi-transparent or opaque surface such as a flat or at least partially curved screen. The optical reflection means <NUM> may be a reflective prism instead of a screen.

In one embodiment, the optical element <NUM> further comprises optical focusing means adapted for focusing the reflected light prior to it reaching the eye of the user. The optical element <NUM> may also comprise optical magnifying means.

The optical element <NUM> has at least two degrees of freedom. In embodiments comprising a shaft element <NUM> and a detachable C-shaped gripper <NUM>, the gripper <NUM> may be slid along the shaft element <NUM>, in parallel with the main plane of the front piece <NUM>, as well as rotated around the shaft element <NUM> in a plane perpendicular to the main plane of the front piece <NUM>. In embodiments comprising a ball joint, the optical element <NUM> may be rotated, simultaneously, in two planes perpendicular to the main plane of the front piece <NUM>.

According to the present invention, see <FIG>, one or both temples <NUM> comprise a primary temple part 3a and a secondary temple part 3b. A first end of the primary temple part 3a is hinged to one end of the front piece <NUM>, the same way as described above. A second end of the secondary temple part 3b is a free end adapted to interact with the ear auricle of the user. The remaining ends, i.e. the second end of the primary temple part 3a and the first end of the secondary temple part 3b, form an adapter <NUM> for receiving and interlocking with the electronic device <NUM>. The adapter <NUM> comprises locking means <NUM>, arranged at the above mentioned second end of the primary temple part 3a and first end of the secondary temple part 3b, respectively, and which interact with corresponding parts on opposite sides of the electronic device <NUM>.

The locking means <NUM> may comprise a locking pin protruding from opposing sides of the temple <NUM> and being adapted for interlocking with corresponding holes <NUM> (see <FIG>) in the electronic device <NUM>. The holes may be for example holes for mounting a wrist band to the body of a smart watch. <FIG> shows a spring-loaded locking pin arranged inside a tubular housing. The locking pin is connected to a lever which extends perpendicularly to the locking pin and the housing, and protrudes outside of the housing. By pushing the lever, a section of the locking pin may be slid inwards into the housing, detaching the locking pin section from a corresponding hole <NUM> and allowing the electronic device <NUM> to be removed from the temple <NUM> or temple part 3a, 3b.

The locking means <NUM> may also comprise one or several snap locking elements or clamping elements.

The second end of the primary temple part 3a and the first end of the secondary temple part 3b have a shape which at least partially corresponds to the outer shape of the electronic device. In an embodiment where the electronic device <NUM> has a circular shape, the second end of the primary temple part 3a and the first end of the secondary temple part 3b are at least partially concave such that they, at least partially, have a shape which corresponds to the circumference of the electronic device <NUM>.

The adapter <NUM> may also comprise a cover plate <NUM>, for covering one side of an electronic device <NUM>, the cover plate <NUM> being arranged such that it protrudes from the second end of the primary temple part in the longitudinal direction of the temple part and in a direction away from the hinged, first end of the primary temple part 3a. The cover plate, being far thinner than the width of the primary temple part 3a, preferably covers and supports the back of the electronic device <NUM> when the electronic device <NUM> is arranged within the adapter <NUM>, i.e. the side which is opposite to the display <NUM>. The cover plate <NUM> may have any suitable shape, but preferably the shape corresponds to the shape of the electronic device <NUM>. , if the electronic device <NUM> has a circular shape, the cover plate <NUM> is preferably also circular.

As an example not part of the invention, the adapter <NUM> comprises a recess <NUM> provided on an inside of the temple <NUM>, i.e. the side which will be closest to the face of the user when the eyeglass frame <NUM> is being worn. The recess <NUM> is adapted for retaining the electronic device <NUM> by means of a mechanical connection <NUM>. In one embodiment, the electronic device <NUM> is press fit into the recess <NUM> and maintained in place by means of friction. The press fit may be achieved by means of protrusions arranged within the recess and interacting with the surface of the electronic device <NUM>, or by the recess itself having a shape which at least partially corresponds to the outer shape of the electronic device <NUM>. , in an embodiment where the electronic device <NUM> is essentially circular, the recess is at least partially concave such that it, at least partially, corresponds to the circumference of the electronic device <NUM>. The mechanical connection <NUM> may also comprise one or several snap locking elements or clamping elements, locking the electronic device <NUM> into place rather than using mere friction.

In one embodiment, the eyeglass frame <NUM> comprises one electronic device <NUM> attached to one temple <NUM>. In a further embodiment, the eyeglass frame <NUM> comprises two electronic devices <NUM> attached to one temple <NUM> each. The electronic device <NUM> preferably comprises a wireless connection. Further, the electronic device <NUM> may comprise at least one of a display <NUM>, a speaker <NUM>, a microphone <NUM>, a camera <NUM>, a sensor, and/or a vibration motor. Any combination of these features is possible.

In one embodiment, the electronic device <NUM> comprises at least a camera <NUM>. The front piece <NUM> comprises a through-going opening <NUM> which accommodates the camera viewing angle α of the camera <NUM>, see <FIG>. The camera may be used to record the surroundings or the user's hand gestures.

In a further embodiment, at least one of the temples <NUM>, or second temple parts 3b, comprises an audio channel <NUM>. <FIG> shows an audio channel <NUM> by means of a dashed line. The audio channel <NUM> extends longitudinally inside and along at least a part of the length of the temple <NUM> or second temple part 3b. The audio channel <NUM> has an audio inlet <NUM> preferably arranged within or in close connection with the adapter <NUM>, such that the speaker <NUM> of the electronic device <NUM> is arranged adjacent the audio channel inlet <NUM> when the electronic device <NUM> is received within the adapter <NUM>. The audio channel <NUM> further has an audio outlet <NUM> which is adapted for being in an ear region of a user, when the eyeglass frame <NUM> is being worn. The audio outlet <NUM> may be an opening directly in the temple, preferably directed inwards and/or downwards from the eyeglass frame <NUM> towards the user's ear when being worn. The audio inlet <NUM> may also be arranged within a protruding element, the protruding element projecting from the temple <NUM>, 3b, preferably in a direction inwards and/or downwards from the eyeglass frame <NUM> towards the user's ear when being worn. The protruding element may be a flexible element adapted for being bent and shaped by the user such that the audio outlet <NUM> is arranged in a desired position, and furthermore stays in this position until being moved to another position. The protruding element may include at its free end an ear-plug with a speaker configured to be inserted in the ear of the user. Further, the audio channel may comprise active components such as an amplifier or a filter.

The various aspects and implementations has been described in conjunction with various embodiments herein. However, other variations to the disclosed embodiments can be understood and effected by those skilled in the art in practicing the claimed subject-matter, from a study of the drawings, the disclosure, and the appended claims. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measured cannot be used to advantage.

Claim 1:
An eyeglass frame (<NUM>) comprising a front piece (<NUM>) and a pair of temples (<NUM>), each temple (<NUM>) being hingedly connected to an end of said front piece (<NUM>) to allow said temples (<NUM>) to move between a folded and an open position, at least one temple (<NUM>) comprising an adapter (<NUM>) for receiving an electronic device (<NUM>);the eyeglass frame (<NUM>) further comprising at least one optical element (<NUM>) connected to said front piece (<NUM>), said optical element (<NUM>) being adapted for reflecting light from the electronic device (<NUM>) to an eye of a user, characterized in that said temple (<NUM>) comprises of a primary temple part (3a) and a secondary temple part (3b), a first end of said primary temple part (3a) being hinged to said front piece (<NUM>), a second end of said secondary temple part (3b) being a free end adapted to interact with an ear auricle of the user, a second end of said primary temple part (3a) and a first end of said secondary temple part (3b) forming the adapter (<NUM>), said adapter (<NUM>) comprising locking means (<NUM>) arranged at the second end of the primary temple part (3a) and the first end of the secondary temple part (3b), for interlocking with said electronic device (<NUM>).