Patent Description:
Today's people have become increasingly inseparable from technologies, as smart phones, notebooks, and tablets have permeated all aspects of life, and technological products trend towards miniaturization and intelligentization. A wearable technological product refers to an equipment which integrates some functions of traditional equipments into traditional wearable items, it can liberate people's limbs to achieve closer combination between human body and machines. A technical solution is proposed to integrate the projection equipment into glasses, however, the projection direction of the current projection glasses is fixed, so that application of projection glasses is simple. <CIT> discloses finger-worn user input devices and methods for operating same. In some embodiments, a device includes at least one rotatable section and an indication mechanism for indicating either a device use or a device state. In some embodiments, a device includes a stationary section, at least one rotatable section and an indication mechanism. In some embodiments, one or more rotatable sections are tiltable. In some embodiments, a device further includes one or more mechanisms selected from mechanisms used for sensing, communication, power generation, light generation, vibration generation, reflection, illumination, projection, physical feedback and magnetic influence. <CIT> discloses a video delivery system including a tablet computer and one or two detachable projectors. In one embodiment, video files are transferred from the tablet computer to the projectors when they are connected. The tablet computer is used as a remote control that controls an operation of delivering a video portion of the video file through the projectors and an audio portion through the tablet computer in a synchronized manner. In one aspect, the two projectors may be positioned to project two adjacent screens that present different portions of images. In other embodiment, positions of the projectors attached to the tablet computer may be adjusted to deliver desired screens. <CIT> discloses a projector producing an imaginary input plane with high operability is provided. A projector according to an embodiment projects a VUI screen picture onto a desk, and projects a main projection screen picture to a wall. The projector includes a light receiving element. The light receiving element is arranged in a position where light emitted toward the desk (VUI screen picture) and reflected (or scattered) by an object near the desk enters. The projector calculates a position of the object based on light sensing timing by the light receiving element and light scan positions at various points in time. The projector changes a projected screen picture when it determines that object is simultaneously in contact with a plurality of portions of the VUI screen picture and at least one of contact positions moves. <CIT> discloses an apparatus, method, and computer program product provided for generating a projected user interface. The apparatus may include at least one processor and at least one memory including computer program code. The at least one memory and the computer program code may be configured, with the processor, to cause the apparatus to receive information regarding a detected position of the users body and to determine whether the detected position is an activation position, in which case the projection of a user interface may be provided. The user interface may be projected on an area on the users body, such as a hand or a forearm, or on the surface of an object. The activation position may thus be a predefined position of the users body in which effective projection of the user interface onto the surface and user interaction with the user interface is facilitated.

It is an object of the present disclosure to provide a wearable projection equipment. The object is achieved by the features of the respective independent claims. Further embodiments are defined in the corresponding dependent claims. Even though the description refers to embodiments or to the invention, it is to be understood that the invention is defined by the claims and embodiments of the invention are those comprising at least all the features of one of the independent claims.

The wearable projection equipment of the present disclosure is capable of projecting images in different directions by providing the projection device respectively on the two rotatable structures, such that application scenarios of the wearable projection equipment become more extensive, thereby making it more convenient to use.

<FIG> illustrates an embodiment of the present disclosure wherein the embodiment shown by <FIG> does not fall under the scope of the claimed invention. The embodiment illustrated in <FIG> provides a wearable projection equipment comprising a first structure body <NUM> and a second structure body <NUM> which are movably connected to each other and can rotate relative to each other; and a projection device <NUM> is respectively provided on the first structure body <NUM> and the second structure body <NUM>.

Both the first structure body <NUM> and the second structure body <NUM> are ring-shaped bodies, the two ring-shaped bodies have approximately the same central axis, so that the first structure body <NUM> and second structure body <NUM> can rotate relative to each other around the above central axis. The above wearable projection equipment can be a projection ring which can be applied to a variety of application scenarios. As illustrated in <FIG>, the projection ring is worn on a finger, and the first structure body <NUM> and the second structure body <NUM> are rotated, so as to make one projection device <NUM> towards the palm of the wearer and another projection device <NUM> towards a wall or a desktop located in the direction of the back of the hand of the wearer. The two projection devices <NUM> can project the same or different images, for example, the image projected on the palm of the wearer is a annotated slide to facilitate the wearer to explain; whereas the image projected on the wall is a non-annotated slide whose content are more intuitive and easy for other people to watch. Alternatively, the two projection devices on the first structure body and the second structure body can be adjusted to the same direction, wherein one of the projection devices projects the image towards the desktop and the other of the projection devices projects the image towards the wall.

The wearable projection equipment of the present disclosure is capable of projecting images in different directions by providing the projection device respectively on the two structures body rotatable relative to each other, such that application scenarios of the wearable projection equipment become more extensive, thereby making it more convenient to use.

As illustrated in <FIG>, the first structure body is a first ring-shaped body <NUM>, and the second structure body is a second ring-shaped body <NUM>.

The wearable projection equipment is a projection ring.

An end opening of the first ring-shaped body <NUM> and an end opening of the second ring-shaped body <NUM> are connected to each other in a telescope manner.

According to the present disclosure, tooth-shaped structures meshing with each other are respectively provided at the two end openings where the first ring-shaped body <NUM> and the second ring-shaped body <NUM> are connected to each other. As depicted in <FIG>, a tooth-shaped structure <NUM> is provided at the lower end of the first ring-shaped body <NUM>, and a tooth-shaped structure <NUM> is provided at the upper end of the second ring-shaped body <NUM>. After the adjustment of the relative position relationship between the first ring-shaped body <NUM> and the second ring-shaped body <NUM> is completed, tooth-shaped structures meshing with each other can ensure that the first ring-shaped body <NUM> and the second ring-shaped body <NUM> no longer rotate, so as to improve the stability of the projection.

According to the present disclosure, an electrode is provided at the tooth tip of the tooth-shaped structure of the first ring-shaped body <NUM>, and an electrode is provided at the tooth root of the tooth-shaped structure of the second ring-shaped body <NUM>. No matter how to rotate the first ring-shaped body <NUM> and the second ring-shaped body <NUM>, in the stationary state after the completion of the rotation, the tooth tip of the tooth-shaped structure of the first ring-shaped body <NUM> and the tooth root of the tooth-shaped structure of the second ring-shaped body <NUM> always have the same corresponding position relationship, therefore this can ensure different contacts on the two electrodes correspond to each other properly, so as to achieve the electrical connection between electronic components in the first ring-shaped body <NUM> and electronic components in the second ring-shaped body <NUM>.

<FIG> is a partially enlarged schematic diagram of the first ring-shaped body <NUM> and the second ring-shaped body <NUM>. It is illustrated in <FIG> that the electrode <NUM> is provided at the tooth tip of the tooth-shaped structure <NUM> of the first ring-shaped body <NUM>, and the electrode <NUM> is provided at the tooth root of the tooth-shaped structure <NUM> of the second ring-shaped body <NUM>. In the case that the tooth-shaped structure of the first ring-shaped body <NUM> and the tooth-shaped structure of the second ring-shaped body <NUM> is meshed with each other, the electrode <NUM> provided at the tooth tip of the tooth-shaped structure of the first ring-shaped body <NUM> and the electrode <NUM> provided at the tooth root of the tooth-shaped structure of the second ring-shaped body <NUM> are electrically connected to each other.

The projection devices of the first ring-shaped body and the second ring-shaped body can be simultaneously powered through the two electrodes by a battery; or the first ring-shaped body <NUM> and the second ring-shaped body <NUM> are respectively provided with a battery; or the first ring-shaped body <NUM> and the second ring-shaped body <NUM> are respectively equipped with a wireless charging device, which can obtain the electrical energy through wireless charging.

According to the present disclosure, the wearable projection equipment can further comprise a touch detection module which can detect a touch action of a finger on an object as a projection screen. This touch detection module and the projection device can cooperate to realize the virtual touch control on the object as the projection screen.

<FIG> schematically illustrates a schematic module diagram of either of ring-shaped bodies. As seen in <FIG>, the touch detection module can be connected to the projection device so as to cooperate to realize the virtual touch control on the object as the projection screen.

According to the present disclosure, the touch detection module can comprise a laser generator and a laser detector, wherein the laser generator generates a laser projected on a surface of the object as the projection screen, and when a finger or a touch pen performs a pressing-key operation on the surface of the object as the projection screen having a keyboard pattern, the laser would form a spot on the finger or the touch pen, and the laser detector detects the mapping position on the keyboard pattern corresponding to the spot on the finger or the touch pen. The laser generator and the laser detector can be provided on one or two of the first ring-shaped body and the second ring-shaped body. The laser generator, the laser detector and either of the projection devices can constitute a virtual keyboard projecting device. The projection device projects a keyboard pattern on the palm, the laser generator generates a laser projected on a surface of the palm, such as visible light or infrared light, and when a finger or a touch pen performs a pressing-key operation on the palm having a keyboard pattern, the laser will form a spot on the finger or the touch pen, and the laser detector detects the mapping position on the keyboard pattern corresponding to the spot on the finger or the touch pen, then which buttons have been pressed will be determined, so as to realize the virtual keyboard projection. The touch detection module comprises a laser generator and a laser detector, wherein the laser generator is configured to generate a laser projected on a surface of the object as the projection screen, and the laser detector is configured to determine a touch position of a finger or a touch pen through a spot formed by the laser on the finger or the touch pen performing an operation on the projection screen.

The wearable projection equipment can further comprise a wireless module which is electrically connected to the projection device on the first ring-shaped body and the projection device on the second ring-shaped body respectively, and the communication and/or electrical connection of the projection device with other equipments can be achieved by a wireless technology. The wireless module can be provided on the first ring-shaped body, wherein the wireless module is connected to electrode at the tooth tip of the tooth-shaped structure of the first ring-shaped body and the projection device on the first ring-shaped body, the electrode at the tooth root of the tooth-shaped structure of the second ring-shaped body is connected to the projection device on the second ring-shaped body, so that the wireless module is electrically connected to the projection device on the second ring-shaped body through the two electrodes. Of course, the wireless module can also be provided on the second ring-shaped body, similarly the wireless module is electrically connected to the projection device on the first ring-shaped body through the electrodes at the tooth-shaped structures. The projection ring provided with the wireless module can be communicated with or electrically connected to the projection device and other equipments through a wireless technology. The image on the phone screen is output directly onto the palm and/or the wall. The wireless module can also be electrically connected to the laser generator and the laser detector. The output of the image on the phone screen and the key input are realized on the palm. Of course, the projection device can be connected to other equipments by means of a wired connection.

<FIG> schematically illustrates a schematic module diagram of either of ring-shaped bodies. As can be seen in <FIG>, the projection device can be connected to other equipments through the connection between the wireless module and the projection device. The wireless module can also be connected to the touch detection module so as to make the touch detection module communicated with other modules or equipments, or the like.

The wearable projection equipment in the present disclosure is capable of projecting images in different directions by providing the projection device respectively on the two rotatable structure bodies, such that application scenarios of the wearable projection equipment become more extensive, thereby making it more convenient to use. In addition, by introducing the laser generator and the laser detector to realize the projection of the virtual keyboard, the output of image and the key input can be achieved simultaneously. In addition, the connection with external equipments is achieved through the wireless module, so as to make the wearable projection equipment more convenient to use.

Claim 1:
A wearable projection equipment, comprising:
a first ring-shaped body (<NUM>) and a second ring-shaped body (<NUM>) which are movably connected to each other and are configured to be rotatable relative to each other,
wherein a projection device (<NUM>) is respectively provided on the first ring-shaped body (<NUM>) and the second ring-shaped body (<NUM>),
wherein a lower end opening of the first ring -shaped body (<NUM>) and an upper end opening of the second ring-shaped body (<NUM>) are connected to each other in a telescope manner,
wherein a first tooth-shaped structure (<NUM>) is provided at the lower end opening of the first ring-shaped body (<NUM>), and a second tooth-shaped structure (<NUM>) is provided at the upper end opening of the second ring-shaped body (<NUM>), the first and the second tooth-shaped structures (<NUM>, <NUM>) being configured to mesh with each other, and wherein a first electrode (<NUM>) is provided at a tooth tip of the first tooth-shaped structure (<NUM>), and a second electrode (<NUM>) is provided at a tooth root of the second tooth-shaped structure (<NUM>), such that the first electrode (<NUM>) and the second electrode (<NUM>) are electrically connected when the first and the second tooth-shaped structures (<NUM>, <NUM>) mesh with each other.