WO2022045884A1

WO2022045884A1 - Mountable camera system for a telephone

Info

Publication number: WO2022045884A1
Application number: PCT/NL2021/050518
Authority: WO
Inventors: Abel VEGTER
Original assignee: Vegter Investments B.V.
Priority date: 2020-08-31
Filing date: 2021-08-20
Publication date: 2022-03-03
Also published as: NL2026379B1

Abstract

A mountable camera system for a phone comprising: a handhold, and a mounting piece arranged for providing reversible attachment of the handhold to a phone, characterized in that the handhold comprises: a camera for generating images; at least one transmitter-receiver for providing wireless communication between the camera and the phone for controlling the camera and for transmitting the images; and a rechargeable energy source for providing electrical energy to a camera and the communication means.

Description

Mountable camera system for a telephone

The present invention relates to a mountable camera system for a phone .

Cameras belonging to smart devices , especially those of smartphones , are a common tool for capturing everyday images and videos . The main limitation of smartphone cameras is the distance a user can have from his or her phone while using the smartphone ' s camera . Timers and sel fie sticks are common solutions to this problem, but both pose problems of their own . When using timers , a user often places his or her precious smartphone at a distance causing it to easily fall prey to theft . In addition, sel fie sticks are still limited to a maximum length and sel fie sticks often become impractical beyond a meter or two . Sel fie sticks are often also seen in the photo or video captured with the phone ' s camera . This is considered ugly by some . In addition, it is annoying to carry a sel fie stick everywhere and the sel fie stick is therefore often not available when one need it .

There is therefore a need for a camera system that is easy to use for taking sel fies without at least one of the aforementioned limitations or one that can of fer at least an alternative to the existing systems .

According to a first aspect of the invention there is provided a mountable camera system for a phone comprising : a handhold, and a mounting piece comprising portions for allowing reversible attachment of the handhold to the phone , wherein the handhold comprises a camera for generating images , at least one transmitter-receiver for providing wireless communication between the phone and the camera for transmitting the images , and a rechargeable energy source for providing electrical energy to the camera and the communication means .

In principle , the mounting of the mounting piece to the phone can be read as being direct or indirect , thus in the indirect case the mounting piece is mounted to a cover of the telephone . The phone case can be seen as being comprised in a phone . This means that the mounting of the mounting piece to the telephone can also be read as the mounting of the mounting piece to a phone in the case of the interposition of a telephone case . In such a case , the mounting piece is ef fectively mounted to the cover .

Optionally, the handhold is designed as a handhold having the shape of a part of a spheroid, such as a hemispheroid, or of a part of an ovoid, such as a hemi-ovoid . An advantage is that these round shapes are not experienced as disturbing by the user when the telephone is worn on the body, such as in a trouser pocket . Furthermore, because of this shape , the handhold also serves as a handhold for normal use of the telephone .

Optionally, the mounting piece is configured as a nano-tape , such as a PET nano-tape , with a first adhesive surface for attaching the mount to the phone , and a second adhesive surface for removably attaching the handhold to the mounting piece . This makes the adhesive surfaces washable and therefore reusable indefinitely . It can be understood that the portions for providing a reversible attachment of the handhold to the telephone comprise the first adhesive surface as well as the second adhesive surface .

Further to the foregoing, the mounting piece may be designed such that the first adhesive surface has a higher adhesive force than the second adhesive surface . A further advantage is that always a single adhesive surface comes of f first when the handhold is removed . In this way, only a single surface becomes contaminated . As a result , only one adhesive surface always needs to be cleaned with repeated coupling and uncoupling of parts . A further advantage is , for example , the mounting piece can be attached to a telephone in such a way that power sharing is possible using the Qi standard . The user then does not have to keep looking for the optimal adhesive location for the system to be able to charge as on a telephone after removal , such as with re-attachment of the detachable handhold . The mounting piece remains on the back of the phone as a marking and only way of attaching the handhold . This feature is therefore advantageous in combination with other features . Alternatively, the mounting piece may be provided such that the second adhesive surface has a higher adhesive force than the first adhesive surface . The advantage of this is that the handhold can then be attached to other surfaces via this tape with the first adhesive surface .

Optionally, a charging circuit is comprised within the handhold, the charging circuit having a flat charging coil for charging the energy source to an induction field . Optionally, such an induction field may originate from the telephone . Current telephones allow wireless sharing of electricity between devices . An advantage is that the system requires a smaller battery because the handhold will almost always be disconnected from the phone fully charged . Optionally, it is also possible for the system to be rechargeable with a wireless charging station which can generate an induction field .

Further to the foregoing, the charging coil may extend in a coil plane . The mounting piece , for example designed as nanotape , extends in a mounting surface . The system can then be designed such that the coil surface extends parallel to the mounting surface . In this way, a coil axis of the charging coil can be perpendicular to the phone while mounted . This orientation of the coil axis is optimal for receiving an induction field from the telephone . As a result , charging losses can remain low and the charging speed is highest . More particularly, the charging coil is configured in the handhold such that in an assembly of the telephone and the system it is substantially coaxial with the induction coil of the telephone .

The charging circuit may further be arranged to detect the disappearance of the induction field, and wherein the system is designed to activate the camera when the disappearance of the induction field is detected . Optionally the camera may comprises , even separate from this example , a processing unit for activating the camera on the basis of the detection of the disappearance of the induction field . A sensor , such as a voltmeter, is optionally provided for detecting the disappearance from the charging circuit . In one example , the induction circuit is therefore provided with a voltmeter for measuring the voltage across the charging coil , whereby the disappearance of the induction field is detected by the circuit when the value of the sensor measurement changes from 0 . 1 -50 Volt , such as from 0 . 5-5 Volts , to almost zero Volts . Alternatively, the circuit may comprise a power sensor, the induction field being detected by the circuit when the value of the sensor reading changes from 1 -30 Watts , such as 5 Watts , to substantially zero Watts . The advantage of this is that the camera only activates when it is needed so that it saves power . The camera may furthermore optionally also be embodied with its own processing unit with preprogrammed control . For example , the camera may then be communicatively connected to the power source and/or the charging circuit for detecting the loss of the interrogation field so that the camera is activated . The reverse is also possible .

Optionally and/or alternatively, by manner of example the charging circuit may be arranged to detect the appearance of the induction field . The system is then arranged to deactivate the camera when it detects that the induction f ield appears . Optionally, even apart from this example , the camera also comprises the aforementioned processing unit for deactivating the camera on the basis of the detection of the appearance of the induction field . Optionally, for detecting the appearance of the charging circuit , the aforementioned sensor, such as a voltmeter, is provided . Thus , in one example , the induction circuit is provided with this voltmeter for measuring the voltage across the charging coil , the appearance of the induction field being detected by the circuit when the value of the sensor reading changes from substantially zero volts to 1 - 50 volts . Alternatively, the circuit may comprise a power sensor, the induction field being detected by the circuit when the value of the sensor reading changes from substantially zero watts to 1-30 watts , such as 5 watts . This also saves energy . Other solutions for activating or deactivating the camera are also possible .

Optionally, the system comprises a switch circuit , wherein the system is arranged to activate the camera when the circuit is broken or closed . Optionally the switch circuit comprises a switch, alternatively the switch circuit is provided partly in the mounting piece and partly in the handhold, in this manner the user can break the circuit respectively by disconnecting the handhold and the mounting piece , and close it by coupling the handhold and mounting piece together . Optionally, the at least one transmitter-receiver includes a Bluetooth Low Energy (BLE ) transmitter-receiver for communicating with the phone to control the camera, and a Wi-Fi transmitter-receiver for communicating with the phone for transmitting the images . By performing external control of the camera via BLE but sending images via Wi-Fi , the system is energy- saving .

Optionally, handhold is a molded handhold, such as of a polymer or silicone material , for example in a mold . At least the camera, the at least one transmitter-receiver and the energy source can be molded into the handhold by molding, but also, for example , the charging circuit . Optionally, for instance when a switch circuit is used, the switch circuit can also be incorporated within the handhold by molding .

For example , i f the switch circuit comprises a pressure switch, a user can break the circuit and close it again with a repeated push, for example by pressing the handhold above the switch . When only a part of the switch circuit is incorporated into the handhold, that part may be molded in . The other part can then for instance be incorporated within or on the mounting piece , for instance as an electrically conductive strip . An advantage is that the camera and the supporting elements are provided to be waterproof so as to enable cleaning by rinsing and possibly also underwater imaging . The handhold can optionally also be at least transparent in part .

According to a second aspect of the invention there is provided an assembly of a phone , such as a smartphone , and the system according to a first aspect of the invention . Herein the handhold is reversibly attached to the phone via the mounting piece .

According to a third aspect of the invention, there is provided a method of using an assembly according to the second aspect of the invention . The method comprising the steps of : providing an assembly according to claim 12 ; and removing at least part of the system, such as only the handhold, from the phone ; activating the camera ( 7 ) ; and providing an image from the camera to the phone .

The handhold can possibly be removed from the phone with or without the mounting piece .

Optionally, the telephone is provided with an induction coil for generating an induction field, the handhold comprising a charging circuit provided with a flat charging coil for charging the energy source at the induction field . The method then further comprises a step of detecting the disappearance of the induction field with the charging circuit . That is to say, the absence of the induction field . The camera is then activated when the disappearance of the induction field is detected . It should be clear that activating only needs to mean turning on the camera .

Further, the step of activating the camera may include identi fying the camera with the at least one transmitterreceiver on a Wi-Fi network, such as the network to which the phone is connected, and connecting the camera to said Wi-Fi network for sending images to the phone over said Wi-Fi network .

Optionally, the phone and camera communicate with each other via the BLE transmitter-receiver . For this purpose , the telephone is also equipped with its own BLE transmitter-receiver for BLE communication . Via BLE , the phone transmits the network identi fication, also known as the SS ID, of the Wi-Fi network and the password so that the camera can connect to the network . Optionally, for example when no Wi-Fi network is available , the phone can generate its own Wi-Fi network such as through a standard hot-spot function . The camera then connects to said hot spot .

It sometimes happens that the camera is not centered on the people that want to take a picture . This can happen when the user positions the system to take a picture so that the camera is at an angle to a straight line between the system and the people . In order to always take a good photo , even with incorrect placement , the camera is designed to have a field of view of 130 degrees . To this end, the camera has , for example , a 130-degree lens . In this manner, a part of the image can always be used as a 70-degree cut-out . The camera, for example more particularly the processing unit of the camera, can be arranged to recogni ze a person, group of people or a hand gesture by means of a recognition algorithm or arti ficial neural network . The processing unit then selects from a 130 degree photo a 70 degree image centered on the person, group of people or hand gesture . The telephone may, for example, be provided with a preprogramming, such as an application, for establishing the image connection between telephone and camera .

The present invention is further discussed herein below with reference to the Figures :

Fig . 1 shows a schematic representation of the camera system according to the invention;

Fig . 2 shows a schematic front representation of the camera system in front view;

Fig . 3 shows a schematic representation of an assembly of telephone and camera system according to the invention; and Fig . 4 shows a schematic representation of the assembly in cross-section .

Where the same reference numerals are used, reference is made to the same features .

Figure 1 shows a schematic representation of a mountable camera system 1 according to the invention . The system 1 consists of an mounting piece 3 and a handhold 5 . In this example , the attachment is designed as a double-sided nano-tape and serves to attach the handhold 5 to a telephone 100 . The telephone 100 is shown in Figure 3 , which itsel f shows an assembly 1000 of the phone 100 and the system 1 . In this example , the handhold 5 comprises a camera 7 and at least one transmitter-receiver 9 , 11 . In this example , the camera 7 is a 4K camera and can therefore generate high-quality images . In this example , the at least one transmitter-receiver consists of a Bluetooth Low Energy (BLE ) transmitter-receiver 9 , and a Wi-Fi transmitterreceiver 11 . Optionally, this BLE transmitter-receiver 9 and this Wi-Fi transmitter-receiver 11 are integrated in a single transmitter-receiver circuit 10 . Such integration of parts , however, is entirely optional and thus shown in broken lines

The BLE transmitter-receiver 9 enables Bluetooth communication between the camera 7 and the phone 100 , and is therefore communicatively connected to the camera 7 .

This enables the camera to quickly exchange relatively small information packets with a telephone, which enables rapid and ef fective control of the camera 7 by means of the telephone 100 . Therefore , in this example , the phone is provided with a pre- programming, such as an application, that allows the user of the phone 100 to control the camera via Bluetooth . However, any images are not sent over a Bluetooth connection between the phone 100 and the camera 7 . The Wi-Fi transmitter-receiver is communicatively connected to the camera and is arranged to connect the camera to a Wi-Fi network (not shown, but customary) . Such a Wi-Fi network can, for example , be a network to which the telephone is also connected, but can also be generated by the telephone itsel f . The generation of Wi-Fi networks by telephones , in particular smartphones , is in principle known under the term Wi-Fi hotspot generation . The camera can then exchange images with the telephone 100 via the connection to the Wi-Fi network . The handhold 5 further comprises a rechargeable energy source 13 for supplying electrical energy to the camera and the communication means . Such an energy source may be a capacitor, a battery or a combination of capacitor and battery . Since the thinness of the system is relevant for wearing comfort , it is important that the battery thickness remains limited, so in this example a Lithium-ion battery was chosen because it has a high energy density . In order to further limit the thickness of the system, in this example the handhold 5 has a charging circuit 14 with a flat charging coil 15 for contactless charging of the rechargeable energy source 13 via an induction field I . This field is shown in Figure 3 as coming from the telephone 100 . To this end, the telephone 100 has , for example , an induction coil 101 . However, the charging circuit 15 and its charging coil 14 are optional elements . Thus , also shown with broken lines - are shown in Figures 1 and 2 .

In this example , the charging coil 14 and the induction coil 101 are configured to cooperate to induce electrical energy into the charging coil . The induction coi l 101 belongs to a telephone with standard ' powershare ' capabilities . For this , the phone can meet the international Qi standard . As an example from the 2017 version 1 . 2 . 2 of the Qi speci fication, such as for transmitting 5 Watts , the induction coil may have a 20 turns coil in a flat plane wound on a mold with a 19mm inner diameter and outer diameter of 40 mm, with a shield under the soft iron coil with a diameter of at least 4 mm, giving an inductance of 24 ± 1 microhenries . This inductor 101 generally forms part of a series resonant circuit (not shown, but customary) placed within the telephone with a capacitor (not shown, but customary) of 200 nF to provide a resonant circuit with a natural resonance at ~ 140 kHz when coupled to the receiver coil , such as the charging coil 14 . This series resonant circuit may be powered by an H-bridge circuit arrangement from the DC power source , such as a battery of the telephone itsel f (not shown, but customary) . At full power, the voltage in the capacitor can reach 50 Volts . Other Qi charge transmitters , i . e . also other induction coils than the induction coil 101 presented herein, are also possible . The charging circuit 15 is in fact also a resonant circuit according to the said Qi standard . Because the circuit is present in the system, the camera can be used repeatedly for a short time with the option of intermediate charging . This eliminates the need for a high-capacity energy source for long-term use . The energy source 13 presented in this example is therefore designed for a maximum battery li fe of 30 minutes . The charging coil 14 of the circuit 15 is further visible in Figure 2 which shows cross-section A-A of the handhold 5 . Cross-section A-A in this example corresponds to a coil plane of the coil 14 . The charging coi l can also have a round shape , or any other shape as long as it extends in the same plane .

Returning to Figure 1 , one can see that the handhold 5 is constructed as a partial spheroid, namely a hemispheroid with a diameter of 30 mm-70 mm, here 50 mm . However, this could optionally also be a partial ovoid, such as a hemi-ovoid, optionally with an ef fectively same largest diameter as the diameter mentioned above . Due to this shape , the handhold can be thin, in this example 6- 15 mm, here 8 mm, and the system lies comfortably in the hand .

Apart from this example , the handhold may also have small studs (not shown, but customary) for increasing the grip on the handhold . The handhold 5 is a molded handhold, in this example of a silicone material , but it may also be of a polymeric material or a rubber . The advantage of the silicone material , such as a silica gel , is that the handhold itsel f can also stick to certain surfaces . Basically, all components are molded in . However, in the event that the material is a non-transparent material , a recess may be provided (not shown, but customary) in the handhold so that the lens of the camera does not experience any visual obstruction from the molded and cured material. Optionally, the handhold 5 may also comprise a local memory 8 on which the camera can store images, for instance when the camera cannot temporarily make a connection with Wi-Fi, so that they can still be transmitted via Wi-Fi or read out at a later time via a USB port (not shown, but customary) . The handhold optionally comprises a Wi-Fi on/off sensor (not shown, but customary) connected to the Wi-Fi transmitter-receiver. Optionally, after casting and curing, the handhold can be provided with another recess (not shown, but customary) so that the USB port becomes available to the user. Optionally, the port can be covered with a cap (not shown, but customary) , so that the system remains watertight.

Figure 1 further shows that the mounting piece 3 is designed as a nano-tape, in this example as a PET nano-tape. The mounting piece therefore has a first adhesive surface 3.1 for attaching the attachment to the telephone, and a second adhesive surface 3.2 for removably attaching the handle to the attachment. Nanotape is a tape in which the adhesive surfaces derive their adhesion, also known as adhesive strength, exclusively from Van der Waals forces instead of molecular bonds. Nano-tape is characterized in that every adhesive surface is covered with nano-strings, such as nanotubes, possibly with end branches. This is not to be confused with adhesives such as self-adhesive polymers, such as polypropylene, or glue. The mounting piece is further designed such that the second adhesive surface 3.2 has a higher adhesive force than the first adhesive surface 3.1. This is a property on which the respective surfaces can be formed. In this example, the respective adhesive surfaces 3.1 and 3.2 have substantially the same surface size. Therefore, the first adhesive surface is designed with a higher adhesive density, i.e. a higher adhesive force per square meter (N/m2) than the second adhesive surface. In this manner, the handhold 5 can be removed from the phone together with the mounting piece 3. The handhold 3 is then stuck to another surface 200 with the attachment 3 so that it faces the user for a selfie. This surface is shown in Figure 4 and can in principle be any surface, such as a wall, window, tree, shelf, car frame, mirror, plastic panel, etc., because the mounting piece is designed as a nano-tape.

Figure 3 basically shows how the assembly 1000 is provided. It is in fact in this manner that a user will carry the assembly with him during conventional use. The system 1 is stuck to a back of the telephone 100 so as to make use of inductive charging via the telephone. When one wants to use the system 1, which is part of such an assembly 1000, then one can consider the following steps.

Step 1. In this step, the user will remove the handhold 5 from the telephone 100, the mounting piece 3 comes along with the handhold 5. This is shown in Figure 4. With this removal, the handle 5 is then moved beyond a range of the induction field I. This happens quite quickly as the induction field I of the phone usually extends effectively only a few millimeters or centimeters out from the phone. Step 1 leads to step 2.

Step 2. In this step, the induction circuit 15 detects that there is no mentionable electrical voltage present on the coil. Optionally, this is determined with a sensor (not shown, but customary) , such as a voltmeter. The induction circuit is communicatively connected to the camera 7 which is preprogrammed to activate upon the disappearance of the voltage on the coil. Step 2 leads to step 3.

Step 3. In this step, the camera activates itself based on the detection of the disappearance of the induction field. Such activation includes, also apart from this example, that the at least one transmitter-receiver (9, 11) becomes active to connect to the telephone and to send images from the camera to the telephone. In this activation step, the camera thus establishes a connection to the telephone by means of the at least one transmitter-receiver. Step 3 leads to step 4.

Step 4. In this step, the camera transmits images to the phone, such as via Wi-Fi, and records images based on instruction, such as over Bluetooth, from the user via the phone. Step 4 leads to step 5

Step 5. In this step, the user places the handhold 5 back onto the telephone together with the mounting piece 3. In this step, the camera 7 will learn by means of the charging circuit 14 that the induction field is present. In response, the camera will deactivate itself. Such deactivation also includes deactivating the at least one transmitter-receiver. Step 5 leads to step 6. Alternatively, in this step the user will place the handhold 5 back onto the telephone together with the mounting piece 3. the camera 7 will perceive from the charging circuit 14 that the induction field is present. In response to this, the camera will remain active. For example, in this alternative step, the user turns off the camera using the application on the phone. The camera then receives, for example, a switch-off signal via Bluetooth. If the camera is not switched off, the camera will continue to provide images to the phone even during charging. Alternative Step 5 also leads to Step 6.

Step 6. In step 6, the energy source 13 will be charged by means of the charging circuit 14 until it is full. The induction field can then remain present, but no current will then be drawn from the coil until the next use. This will keep the electrical loss to a minimum.

Optionally, the handgrip is provided with a signal light (not shown, but usual) , such as an LED, which lights up when the camera is active, and which is extinguished when the camera is inactive. Optionally, the signal light can also take on a color based on the charge of the battery.

Alternatively, the system 1 may also be provided with a switch to manually control activation.

Thus, a camera system is provided that is ready for use at all times within 3 seconds and can be stuck anywhere for the best recordings, and is always loaded since it is stuck to your phone. More generally, the system takes the following steps when removing the camera handle from the phone: camera detects that there is no more charging; camera "asks" the phone via Bluetooth which Wi-Fi network to use;

If the phone is connected to a Wi-Fi network (e.g. home or office) , the phone will transmit the Wi-Fi network SSID and password to the camera via Bluetooth. The moment the camera is connected to the network, it gives its acquired IP address to the phone via Bluetooth, the phone can then connect to the camera via the Wi-Fi network with a camera application, or other preprogramming. Optionally, the user can disconnect the Wi-Fi connection by closing the application on the phone, or upon return placement of the camera onto the phone .

However, i f the phone is connected to a mobile network, the phone will set up an access point ( local Wi-Fi network) , also known as a hotspot .

When the access point is set up, the SS ID and password that is to be used will be passed on to the camera via Bluetooth . The moment the camera is connected to the access point , it transmits its obtained IP address to the phone via Bluetooth, the phone can then connect to the camera by means of the camera application via the access point network (Wi-Fi ) . After closing the application, or after putting the camera back onto the phone , the Wi-Fi connection is broken .

In the event that the phone does not support wireless charging, the camera is connected via Bluetooth, then communication takes place in exactly the same way, it is j ust that the camera no longer activates automatically by removing the phone . A switch can be provided for this purpose . Alternatively, the camera must first be turned on and then set up in Bluetooth connection with the phone . Closing the app can therefore lead to the camera being turned of f .

On the other hand, it is also possible to provide the system with a magnetic or light sensor (not shown, but customary) . In such a case , thi s magnet or light sensor can detect when the system is removed from the phone . For example , a light sensor may face the phone so that it is covered when the system is mounted on the phone and not covered when the system is removed from the phone . A magnetic sensor could be arranged to be magnetically coupled to the housing of the telephone when the system is on the telephone and magnetically decoupled from the housing on removal . In response to this , the camera can then activate , and possibly automatically communicate with the phone as discussed above in examples . Optionally, only the 70-degree cut-out , also known as a photo portion, is sent to the phone . This reduces the amount of data sent , which benefits the battery li fe . The system also of fers solutions in the context of surveillance , because the camera can be placed almost anywhere , at least temporarily . I f necessary, the system can be used to assist with parking . A user can then stick the system on the bumper or elsewhere on the car so that the user has a view of the parking space available to him or her . Where the system receives an induction field from a charging station, it may optionally function indefinitely and provide images to the telephone . In such a case , the system may be arranged so that the camera does not turn of f when it receives an induction field .

In such a case, the system continuously provides images to the telephone .

Where in speci fic examples it is mentioned that the handhold 5 is placed on the telephone together with the mounting piece 3 , the attachment 3 may alternatively also be designed to remain on the telephone . In such a case, the handhold is placed back onto the mounting piece , left behind on the telephone .

Claims

1. An mountable camera system (1) for a phone comprising : a handhold (5) , and a mounting piece (3) comprising portions for allowing reversible attaching of the handhold (5) to the phone (100) , characterized in that the handhold (5) comprises: a camera (7) for generating images, at least one transmitter-receiver (9, 11) for providing wireless communication between the phone and the camera for transmitting the images, and a rechargeable energy source (13) for providing electrical energy to the camera and the communication means.

2. The system according to claim 1, characterized in that the handhold is designed as a partial spheroid, such as hemispheroid, or partial ovoid, such as hemi-ovoid.

3. The system according to claims 1 or 2, characterized in that the mounting piece (3) is designed as a nano-tape, such a PET nano-tape, having a sticking surface (3.1) for attaching the mounting piece to the phone, and a second sticking surface (3.2) for removably attaching the handhold to the mounting piece.

4. The system according to claim 3, characterized in that the second sticking surface (3.1) has a higher adhesive strength than the first sticking surface (3.2) .

5. The system according to at least one of preceding claims 1-4, characterized in that the handhold (5) comprises a charging circuit (14) provided with a flat charging coil (15) for charging the energy source to an induction field (I) , such as originating from the phone (100) or a wireless charging station .

6. The system according to claim 5, characterized in that the charging coil (15) extends in a coil plane, and wherein the mounting piece extends in a mounting plane, wherein the coil plane extends parallel to the mounting plane.

7. The system according to claim 5 or 6, characterized in that the charging circuit is arranged to detect the induction field, and wherein the system is designed to activate the camera when the induction field is absent.

8. The system according to claim 5, 6 or 6, characterized in that the charging circuit is designed so as to detect the induction field, and wherein the system is designed so as to deactivate the camera when the induction field is present .

9. The system according to any one of the preceding claims, characterized in that the system comprises a switch circuit (20) , wherein the system is arranged to activate the camera when the circuit is broken or closed.

10. The system according to any one of preceding claims 1-9, characterized in that the at least one transmitterreceiver (9, 11) comprises a Bluetooth Low Energy transmitterreceiver (9) for communicating with the telephone for controlling the camera, and comprises a Wi-Fi transmitterreceiver (11) for communicating with the telephone for transmitting the images.

11. The system according to any one of the preceding claims 1-10, characterized in that the handhold is a molded handhold, such as of a polymer or silicone material, wherein the at least one transmitter-receiver (9, 11) and energy source are incorporated into the handhold by molding, and wherein optionally the handhold is partially transparent for the camera.

12. The system according to any one of the preceding claims 1-11, characterized in that the system comprises a sensor, such as a magnet or light sensor, so as to detect when the system is removed from a telephone, and wherein the camera activates in response to said detection.

13. The system according to any one of claims 1-12, characterized in that the camera is designed to have a 130- degrees angle of view.

14. The system according to any one of the preceding claims 1-13, characterized in that the camera is designed with a recognition algorithm or artificial neural network, to recognize a hand gesture, and wherein the camera takes a picture upon recognition of said hand gesture.

15. The system according to at least claims 13 and 14, characterized in that the camera is arranged to select a picture- portion, such as a selfie, from the taken picture having a 130- degree angle of view, wherein the picture portion corresponds to having a 70-degree angle of view, and wherein the picture portion is selected so that the hand gesture falls within picture portion, and preferably is centered on the hand gesture.

16. An assembly of the system according to any one of claims 1-15, and the smartphone.

17. A method for using an assembly according to claim 16 comprising the steps: - providing an assembly according to claim 16; removing at least a part of the assembly, such as only the handhold, from the phone; activating the camera (7) ; and providing an image from the camera to the phone.