An external lens assembly, a mobile terminal, and a photographing device

Abstract

The present invention discloses an external lens assembly, a mobile terminal, and a photographing device. Among them, the external lens assembly is used to be connected to the mobile terminal. The external lens assembly includes a back plate, a lens disposed on the back plate, and the remaining one of a guiding member or a guided member. The guiding member or the guided member on the back plate and the lens are respectively located on opposite sides of the back plate. The optical axis of the lens is perpendicular to the back plate. The guiding member or the guided member on the back plate and the guiding member or the guided member on the mobile terminal are mutually matched. Through the matching of the guiding member and the guided member, the mobile terminal is mounted on the back plate in a sliding manner. The external lens assembly of the present invention, by providing a guiding member and a guided member, can enable the mobile terminal to be mounted on the back plate in a sliding manner, not only ensuring the precision of the connection between the external lens assembly and the mobile terminal, improving the photographing quality, but also facilitating the installation and disassembly of the external lens assembly.

Description

Technical Field

[0001] The present invention belongs to the technical field of digital products, and in particular relates to an external lens assembly, a mobile terminal and a shooting device. Background Art

[0002] Nowadays, mobile terminals such as smart phones all have a shooting function. With the development of the times, the built-in lens of the mobile terminal can no longer meet the higher requirements of users, so external lens components for mobile terminals have appeared on the market.

[0003] However, since the existing external lens assemblies are mostly installed on the mobile terminal by means of clamping, the external lens assemblies are easy to fall off from the mobile terminal, resulting in low practicality of the external lens assemblies. In addition, the matching accuracy of the external lens installed by the clamping method and the mobile terminal is not high, which easily leads to a decrease in the quality of the photos. There are also some external lens assemblies that use special mechanisms for installation, which are cumbersome to install and disassemble and inconvenient to use. Summary of the invention

[0004] In view of this, in order to overcome the defects in the prior art, an object of the present invention is to provide an external lens assembly, a mobile terminal and a shooting device that are easy to use while ensuring the matching accuracy.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An external lens assembly is used to connect with a mobile terminal, the mobile terminal includes one of a guide or a guided member, the external lens assembly includes a back plate, a lens arranged on the back plate, and the remaining one of a guide or a guided member, the guide or the guided member on the back plate and the lens are respectively located on opposite sides of the back plate, the optical axis of the lens is perpendicular to the back plate, the guide or the guided member on the back plate matches the guide or the guided member on the mobile terminal, and the matching of the guide and the guided member is used to install the mobile terminal on the back plate in a sliding manner. By providing the guide and the guided member, the precision of the connection between the external lens assembly and the mobile terminal is ensured, the quality of photographing is improved, and the installation and removal of the external lens assembly is facilitated.

[0007] According to a preferred embodiment of the present invention, the lens is mounted on the front surface of the back plate, the guiding member is provided on the back surface of the back plate, and the guided member is provided on the mobile terminal; the guiding member includes a sliding limiting portion provided on the back surface of the back plate and at least a pair of sliding grooves provided at opposite positions on the back surface of the back plate. The sliding limiting portion is used to limit the sliding of the mobile terminal. One end of the sliding groove away from the sliding limiting portion is for the guided member of the mobile terminal to be inserted. The extending direction of the sliding limiting portion is perpendicular to the extending direction of the sliding groove. A space for accommodating the mobile terminal is formed among the sliding limiting portion, the sliding groove and the back surface of the back plate.

[0008] Preferably, the guiding member is provided on the external lens assembly, and the guided member is provided on the mobile terminal, so that the insertion of the mobile terminal is more convenient. And the extending direction of the sliding limiting portion is perpendicular to the extending direction of the sliding groove, which can ensure that after the mobile terminal is inserted, the sliding groove and the sliding limiting portion position and limit the mobile terminal, ensuring the stability of the connection between the mobile terminal and the external lens assembly.

[0009] In a specific embodiment of the present invention, at least the pair of sliding grooves are respectively located on two opposite long edges of the back surface of the back plate, the sliding limiting portion is provided on the short edge of the back surface, the length of the sliding groove is shorter than the length of the long edge, the length of the sliding limiting portion is shorter than the length of the short edge, a triangle is formed between the pair of sliding grooves and the sliding limiting portion, and the guided member on the mobile terminal is an earpiece matching the sliding groove and the sliding limiting portion. In this embodiment, a triangle is formed between the pair of sliding grooves and the sliding limiting portion, so as to form a three-point fixation on the mobile terminal, making the mobile terminal more firmly connected to the external lens assembly and not easily falling off.

[0010] In another specific embodiment of the present invention, the pair of sliding grooves are respectively located on two opposite short edges of the back surface of the back plate, the sliding limiting portion is provided on the long edge of the back surface, the length of the sliding groove is equal to the length of the short edge, the sliding limiting portion is located at one end of the sliding groove, and the guided member on the mobile terminal is the side edge of the mobile terminal. In this embodiment, by setting the side edge of the mobile terminal as the guided member, more volume of the mobile terminal is in contact with the external lens assembly, improving the stability of the connection between the mobile terminal and the external lens assembly.

[0011] According to a preferred embodiment of the present invention, both the chute and the sliding limiting portion include a vertical plate and an opposing plate. The vertical plate is disposed perpendicular to the back plate, and the opposing plate is disposed parallel to the back plate. A clamping groove is formed among the vertical plate, the opposing plate and the back surface of the back plate, and a pressing mechanism is disposed in the clamping groove. The pressing mechanism is used to press the mobile terminal against the back surface of the back plate. By providing the pressing mechanism, the mobile terminal can be more firmly fixed on the back surface of the back plate.

[0012] In a specific embodiment of the present invention, the pressing mechanism includes a spring piece. One end of the spring piece away from the sliding limiting portion is a fixed end, and the other end of the spring piece is a free end. The fixed end is fixed on the opposing plate, and the free end is separated from the opposing plate in the natural state. The distance between the spring piece and the back surface of the back plate gradually decreases from the fixed end to the free end, and the minimum value of the distance between the spring piece and the back surface of the back plate is less than the thickness of the guided member. The setting of the free section and the fixed end of the spring piece facilitates the insertion of the mobile terminal and can prevent the mobile terminal from falling off easily, making it more convenient to use.

[0013] In another specific embodiment of the present invention, the pressing mechanism includes a pressing piece and a spring for connecting the pressing piece to the side of the opposing plate close to the back surface of the back plate. The pressing piece includes an upper end surface close to the opposing plate, a lower end surface close to the back plate, and an inclined surface. The inclined surface faces the chute and the back plate. When the spring is in the natural state, the minimum value of the distance between the lower end surface of the pressing piece and the back surface of the back plate is less than the thickness of the guided member. The setting of the inclined surface facilitates the insertion of the mobile terminal.

[0014] A first clamping groove is formed between the chute and the back surface of the back plate, and the pressing mechanism in the first clamping groove adopts the form of the above-mentioned spring piece; a second clamping groove is formed between the sliding limiting portion and the back surface of the back plate, and the pressing mechanism in the second clamping groove adopts the form of the above-mentioned pressing piece and spring.

[0015] According to a preferred embodiment of the present invention, a first connection terminal and a second connection terminal that cooperate with each other are respectively provided on the back plate and the mobile terminal. The extending directions of the first connection terminal and the second connection terminal are the same as the extending direction of the sliding limiting portion. When the sliding of the mobile terminal is limited by the sliding limiting portion, the first connection terminal on the back plate contacts the second connection terminal on the mobile terminal. Through the electrical connection between the connection terminals, the mobile terminal can supply power to the external lens assembly, and can adjust and control the external lens assembly through the mobile terminal, as well as realize the data transmission function.

[0016] According to a preferred embodiment of the present invention, the arrangement direction formed by the first connection terminal and the sliding limiting portion is perpendicular to the extending direction of the sliding groove; or, the first connection terminal is disposed on a side of the upright plate of the sliding limiting portion close to the sliding groove. When the first connection terminal is separately disposed away from the sliding limiting portion, a bump needs to be further provided to accommodate the first connection terminal; when the first connection terminal is disposed on the side of the upright plate of the sliding limiting portion close to the sliding groove, the bump may not be separately provided, making the structure and appearance of the external lens assembly more concise.

[0017] According to a preferred embodiment of the present invention, one of a locking member or a locked member is disposed on the back surface of the back plate, and the remaining one of the locking member or the locked member is disposed on the mobile terminal. The locking member and the locked member cooperate with each other to lock the mobile terminal to the external lens assembly when the sliding of the mobile terminal is limited by the sliding limiting portion. A locking operation portion capable of operating the locking member is further disposed on the mobile terminal or the external lens assembly to control the locking and unlocking of the locking member.

[0018] According to a preferred embodiment of the present invention, the locking member is disposed on the back surface of the back plate in a retractable manner, and the locked member is disposed on the mobile terminal. When the sliding of the mobile terminal is limited by the sliding limiting portion, the mobile terminal is locked by extending the locking member to engage the locked member formed on the mobile terminal.

[0019] The present invention further provides a mobile terminal for mating and connecting with the above external lens assembly. The mobile terminal includes a mobile terminal body, an opening formed on the mobile terminal body, a photosensitive element disposed in the opening, and a guiding member or a guided member. The guiding member or the guided member on the mobile terminal respectively matches the guided member or the guiding member on the back plate to slidably mount the mobile terminal body on the external lens assembly.

[0020] According to a preferred embodiment of the present invention, the guided member is disposed on the mobile terminal body, and the guided member matches the guiding member of the external lens assembly; the guided member is an earpiece, and the earpieces are disposed on two opposite edges of the mobile terminal body and match the sliding grooves on the back plate; or, the guided member is constituted by the side edge of the mobile terminal body. The side of the mobile terminal where the opening is formed is the back surface, and the other side opposite to the opening is the front surface. When the guided member on the mobile terminal is an earpiece, the earpiece is disposed at a position close to the back surface on the side edge of the mobile terminal, and the surface of the earpiece is flush with the back surface to facilitate the insertion and use of the mobile terminal.

[0021] According to a preferred embodiment of the present invention, the mobile terminal includes a display unit and a lens operation unit provided on the main body of the mobile terminal. The display unit and the opening are respectively located on two sides of the main body of the mobile terminal. The lens operation unit operates the external lens assembly through the display unit.

[0022] The present invention also provides a photographing device including the above-mentioned external lens assembly and mobile terminal. In a specific embodiment of the present invention, a circular through-hole extending in the thickness direction is formed at a substantially central position of the back plate. The through-hole can ensure that the light from the lens smoothly passes through the back plate to the photosensitive element of the mobile terminal. A first horizontal abutting surface and a second horizontal abutting surface are respectively provided on the external lens assembly and the mobile terminal. The first horizontal abutting surface is located on the outer periphery of the through-hole, that is, the first horizontal abutting surface surrounds the through-hole and is arranged in a circular ring shape; the second horizontal abutting surface is located on the outer periphery of the opening, that is, the second horizontal abutting surface surrounds the opening and is arranged in a circular ring shape. After the mobile terminal is completely inserted into the external lens assembly, the first horizontal abutting surface and the second horizontal abutting surface are in contact with each other, and the first horizontal abutting surface and the second horizontal abutting surface are perpendicular to the optical axis of the lens of the external lens assembly, so that the photosensitive element of the mobile terminal can be perpendicular to the optical axis of the lens of the external lens assembly. Therefore, the photographing quality of the photographing device 1 can be improved.

[0023] According to one aspect of the present invention, there is provided an external lens assembly for connecting to a mobile terminal, including: a back plate; a lens provided on one side surface of the back plate; a guiding member or a guided member provided on the other side surface of the back plate and matching with the guided member or the guiding member of the mobile terminal. Through the matching of the guiding member and the guided member, the mobile terminal is slidably mounted on the other side surface of the back plate.

[0024] According to another aspect of the present invention, there is provided a mobile terminal for connecting to an external lens assembly, including: a mobile terminal main body; an opening formed on one side surface of the mobile terminal main body; a photosensitive element disposed in the opening; a guiding member or a guided member provided on the mobile terminal main body and matching with the guided member or the guiding member of the external lens assembly. Through the matching of the guiding member and the guided member, the mobile terminal main body is slidably mounted on the external lens assembly.

[0025] Due to the implementation of the above technical solutions, the external lens assembly of the present invention has the following advantages compared with the prior art: The external lens assembly of the present invention can mount the mobile terminal on the back plate in a sliding manner by providing a guiding member and a guided member, which not only ensures the precision of the connection between the external lens assembly and the mobile terminal, improves the photographing quality, but also facilitates the installation and disassembly of the external lens assembly, and improves the practicability of the external lens assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0027] Figure 1 Fig. shows an exploded perspective view of the photographing device according to the first embodiment of the present invention.

[0028] Figure 2 Fig. shows another exploded perspective view of the photographing device according to the first embodiment of the present invention.

[0029] Figure 3 Fig. shows an assembled perspective view of the photographing device according to the first embodiment of the present invention.

[0030] Figure 4A Fig. shows a perspective view of the external lens assembly according to the first embodiment of the present invention.

[0031] Figure 4B Fig. shows a side view of the external lens assembly according to the first embodiment of the present invention.

[0032] Figure 5A Fig. shows a perspective view of the sliding groove.

[0033] Figure 5B Fig. shows a side view of the sliding groove.

[0034] Figure 6 Fig. shows Figure 4B a cross-sectional view taken along line VI-VI of

[0035] Figure 7 Fig. shows an exploded perspective view of the photographing device according to the second embodiment of the present invention.

[0036] Figure 8 Fig. shows another exploded perspective view of the photographing device according to the second embodiment of the present invention.

[0037] Figure 9 Fig. shows yet another exploded perspective view of the photographing device according to the second embodiment of the present invention.

[0038] Figure 10 Fig. shows an assembled perspective view of the photographing device according to the second embodiment of the present invention.

[0039] In the above drawings:

[0040] 1 - Shooting device; 100 - External lens assembly; 110 - Back plate; 111 - Through hole; 120 - Lens; 130 - Slide groove; 131 - Upright plate; 132 - Opposing plate; 133 - Pressing mechanism; 134 - Elastic piece; 134a - One side surface of the elastic piece; 134b - The other side surface of the elastic piece; 140 - Sliding restriction part; 141 - Upright plate; 142 - Opposing plate; 142a - Spring receiving hole; 143 - Pressing mechanism; 144 - Pressing piece; 144a - One end surface of the pressing piece; 144b - The other end surface of the pressing piece; 145 - Spring; 150 - First connection terminal; 160 - First horizontal abutting surface; 170 - Locking post; 180 - Locking operation part; 200 - Smart phone; 210 - Mobile phone body; 220 - Opening; 230 - Photosensitive element; 240 - Ear piece; 240A - Short outer edge; 250 - Ear piece; 250A - Long outer edge; 260 - Second connection terminal; 265 - Second horizontal abutting surface; 270 - Locking hole; 280 - Display part; 290 - Touch screen panel; S - Storage space. Detailed implementation manners

[0041] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0042] First implementation manner

[0043] Hereinafter, with reference to Figures 1 to 6 the shooting device 1 related to the first implementation manner of the present invention will be described. Throughout this specification, the same reference numerals are attached to the same components.

[0044] As Figures 1 to 6 shown, the shooting device 1 related to this implementation manner includes an external lens assembly 100 and a smart phone 200 as a mobile terminal. In this implementation manner, although the mobile terminal is composed of a communicable smart phone 200, it is not limited thereto. For example, in this implementation manner or other implementation manners, the mobile terminal may also be composed of a tablet computer, a notebook, an ordinary mobile phone with a camera function, or other communication devices.

[0045] The external lens assembly 100 is used to connect to the smart phone 200. The external lens assembly 100 includes a back plate 110, a lens 120, a pair of sliding grooves 130 that function as guiding members for guiding, a sliding restriction portion 140, a first connection terminal 150, a first horizontal abutting surface 160, a locking post 170 that functions as a locking member, and a locking operation portion 180.

[0046] On the other hand, the smart phone 200 is used to connect to the external lens assembly 100. The smart phone 200 includes a phone body 210 that serves as a mobile terminal body, an opening 220, a photosensitive element 230, a pair of lugs 240 that function as guided members, a single lug 250, a second connection terminal 260, a second horizontal abutting surface 265, a locking hole 270 that functions as a locked member, a display portion 280, and a touch panel 290 that functions as a lens operation portion. Among them, the display portion 280, the touch panel 290, etc. are located on the front surface of the phone body 210, and the second horizontal abutting surface 265, the locking hole 270, etc. are located on the back surface of the phone body 210. That is, the sliding grooves 130 are used to guide the lugs 240, the sliding restriction portion 140 acts on the single lug 250 to limit the phone body 210, the first connection terminal 150 is used to connect to the second connection terminal 260, the first horizontal abutting surface 160 abuts against the second horizontal abutting surface 265, and the locking operation portion 180 is used to operate the locking post 170 to insert the locking post 170 from the back plate 110 into the locking hole 270 for locking or withdraw from the locking hole 270 for unlocking.

[0047] In this embodiment, the pair of lugs 240 and the single lug 250 are both located on the side edge of the phone body 210 and close to the back surface of the phone body 210. More specifically, one side surface of the pair of lugs 240 and the single lug 250 is flush with the back surface of the phone body 210 to facilitate the insertion of the smart phone 200.

[0048] Hereinafter, the specific structure of the external lens assembly 100 will be described.

[0049] The back plate 110 is a rectangular plate-like member, and a substrate (not shown) serving as a circuit board and various electronic components (not shown) electrically connected to the substrate through wires are provided inside it. A circular through portion 111 penetrating the back plate 110 in the thickness direction is formed at a substantially central position of the back plate 110. The through portion 111 can ensure that the light from the lens 120 smoothly passes through the back plate 110 and reaches the photosensitive element 230 of the smart phone 200.

[0050] The lens 120 is used to collect light from the object to be photographed and converge it. The lens 120 is provided on the front surface which is one side of the back plate 110. In this embodiment, although the lens 120 is composed of a zoom lens, it is not limited thereto. For example, it may also be composed of a fixed-focus lens. In addition, the lens 120 can perform both manual focusing and automatic focusing.

[0051] The lens 120 includes a telescopic lens barrel and a plurality of lens groups (not shown) built into the lens barrel. The zoom of the lens 120 is achieved by changing the distance between the plurality of lens groups. In addition, the focusing of the lens 120 is achieved by moving at least one lens group along the optical axis direction. Further, among the plurality of lens groups, there may also be included an anti-vibration lens for correcting vibrations caused by hand tremors.

[0052] In order to ensure the accuracy of the connection between the lens 120 and the back plate 110, the lens 120 is fixedly connected to the back plate 110, and the connection between the two is non-detachable. Further, in this embodiment, the lens 120 and the back plate 110 are formed as an integral structure.

[0053] A pair of chutes 130 are provided on the back surface which is the other side of the back plate 110 and are matched with a pair of lugs 240 of the smart phone 200 for guiding the movement of the lugs 240. Through the matching of the pair of chutes 130 and the pair of lugs 240, the smart phone 200 is slidably mounted on the back surface of the back plate 110. Thus, compared with the case where an external lens assembly is mounted on a smart phone by a clamping method, the external lens assembly 100 is less likely to fall off from the smart phone 200, thereby improving the use safety, stability and practicability of the external lens assembly 100.

[0054] A pair of chutes 130 are provided on a pair of edges on the back surface of the back plate 110 in a manner extending along the length direction of the back plate 110. Specifically, they are provided at a pair of long edges on the back surface of the back plate 110. Thus, the smart phone 200 can be received between the pair of chutes 130, and the distance between the pair of chutes 130 matches the width of the phone body 210 to prevent the smart phone 200 from shaking when received between the pair of chutes 130. And the thickness of the phone body 210 is greater than or equal to the thickness of the chutes 130 to better play the role of the phone body 210 against the chutes 130 to form a limit and keep the phone body 210 stable between the chutes 130.

[0055] In this embodiment, the pair of chutes 130 do not span the entire pair of long edges, but are set to span only a part of the pair of long edges, that is, the length of the chutes 130 is less than the length of the long edges on the back surface of the back plate 110. Specifically, the pair of chutes 130 are provided at one end side of the through portion 111 ( Figure 1 the lower side).

[0056] One end side of a pair of sliding grooves 130 ( Figure 1 the lower side thereof) is for the insertion of the lugs 240 of the smart phone 200. Thus, the smart phone 200 can be slidably received from the lower side to the upper side on the back surface of the back plate 110 through the matching of the pair of sliding grooves 130 and the pair of lugs 240, as Figure 1 shown.

[0057] As Figure 5A and Figure 5B shown, the sliding groove 130 includes a vertical plate 131 and an opposed plate 132. The vertical plate 131 is vertically fixed to the back surface of the back plate 110. The opposed plate 132 is formed at the top end of the vertical plate 131 and is opposed to the back plate 110 in parallel.

[0058] In order to stably receive the smart phone 200, a pressing mechanism 133 is provided on one side (inner side) of the opposed plate 132 opposed to the back plate 110. The pressing mechanism 133 presses the pair of lugs 240 of the smart phone 200 against the back surface of the back plate 110. Thus, loosening between the external lens assembly 100 and the smart phone 200 can be avoided, which may cause a change in the flange distance between the lens 120 and the smart phone 200.

[0059] In this embodiment, the pressing mechanism 133 in the sliding groove 130 is composed of an elastic piece 134. The elastic piece 134 is used to press the lugs 240 so as to stably fix the smart phone 200 on the back plate 110. The elastic piece 134 includes a side surface 134a opposed to the opposed plate 132 and another side surface 134b as a pressing surface opposed to the back surface of the back plate 110.

[0060] Specifically, in this embodiment, one end of the elastic piece 134 far from the sliding limiting portion 140, that is, one end facing the insertion side of the smart phone 200, is connected to the opposed plate 132. The other end of the elastic piece 134 close to the sliding limiting portion 140 is a free end and is separated from the opposed plate 132 in the natural state. The elastic piece 134 is arranged in such a way that the distance between the side surface 134a of the elastic piece 134 and the opposed plate 132 gradually increases from one end of the elastic piece 134 to the other end of the elastic piece 134. When the elastic piece 134 is in the natural state, the minimum value of the distance between the other side surface 134b of the elastic piece 134 and the back surface of the back plate 110 is smaller than the thickness of the lugs 240, so as to ensure that when the smart phone 200 is inserted into the external lens assembly 100, the lugs 240 can contact the elastic piece 134 and then be pressed.

[0061] When the lug 240 of the smart phone 200 is slidably inserted into the chute 130, the lug 240 presses the other side surface 134b of the elastic piece 134, so that the other end of the elastic piece 134 approaches the opposing plate 132, and the elastic piece 134 is lifted to generate elastic force. Thus, the elastic piece 134 (pressing mechanism 133) presses the lug 240 against the back surface of the back plate 110, so as to more stably fix the smart phone 200 on the back plate 110.

[0062] The sliding limiting portion 140 is a limiting portion for limiting the sliding of the smart phone 200. The sliding limiting portion 140 is disposed at the other end side ( Figure 1 on the upper side) of the pair of chutes 130 in a manner extending along the width direction of the back plate 110. Specifically, it is disposed on one short edge of the back surface of the back plate 110 ( Figure 1 on the upper edge). In addition, the sliding limiting portion 140 is matched with a single lug 250 of the smart phone 200. By the matching of the sliding limiting portion 140 and the single lug 250, the sliding of the smart phone 200 relative to the back plate 110 upward can be limited.

[0063] A storage space S for storing the smart phone 200 is formed by the pair of chutes 130, the single sliding limiting portion 140, and the back surface of the back plate 110. Since the pair of chutes 130 and the single sliding limiting portion 140 are respectively disposed on a pair of long edges of the back surface of the back plate 110 and one short edge of the back surface of the back plate 110, almost the entire back surface of the back plate 110 can be used as the storage space S to store the sliding smart phone 200. The sliding storage action is faster, and the three-point fixing makes the connection between the back plate 110 and the smart phone 200 more stable.

[0064] As Figure 6 shown, similar to the chute 130, the sliding limiting portion 140 includes an upright plate 141 and an opposing plate 142. The upright plate 141 is vertically fixed to the back surface of the back plate 110. The opposing plate 142 is formed at the top end of the upright plate 141 and is disposed in parallel opposition to the back plate 110.

[0065] In order to stably store the smart phone 200, a pressing mechanism 143 is disposed on one side (inner side) of the opposing plate 142 opposing the back plate 110. The pressing mechanism 143 presses a single lug 250 of the smart phone 200 against the back surface of the back plate 110. Thus, the loosening between the external lens assembly 100 and the smart phone 200 can be avoided, resulting in a change in the flange distance between the lens 120 and the smart phone 200.

[0066] As Figure 6As shown, in this embodiment, the pressing mechanism 143 in the sliding restriction portion 140 is different from the pressing mechanism 133. The pressing mechanism 143 includes a pressing piece 144 and a spring 145. The pressing piece 144 is used to press the lug 250. The pressing piece 144 includes an end face 144a facing the opposing plate 142, another end face 144b as a pressing face facing the back of the back plate 110, and an inclined face 144c facing the back of the back plate 110. The inclined face of the inclined face 144c faces the other end side ( Figure 1 the lower side of), that is, the insertion side of the smart phone 200. The setting of the inclined face 144c facilitates the insertion of the lug 250. When the spring 145 is in a natural state, the minimum distance between the other end face 144b of the pressing piece and the back of the back plate 110 needs to be less than the thickness of the lug 250, so as to ensure that when the smart phone 200 is inserted into the external lens module 100, the lug 250 can contact the other end face 144b of the pressing piece and then be pressed.

[0067] The spring 145 is used to connect the pressing piece 144 and the opposing plate 142. One end of the spring 145 is fixed to the bottom surface of the spring receiving hole 142a formed on the opposing plate 142, and the other end of the spring 145 is fixed to the end face 144a of the pressing piece 144. Thus, the pressing piece 144 is supported on the opposing plate 142 by the spring 145.

[0068] When the spring 145 is in a natural state, that is, when the spring 145 is not compressed, the pressing piece 144 is away from the opposing plate 142. First, when the lug 250 of the smart phone 200 slides and inserts into the sliding restriction portion 140, the lug 250 presses the inclined face 144c of the pressing piece 144, so that the spring 145 is compressed. The pressing piece 144 moves toward the opposing plate 142 side along with the compression of the spring 145, that is, the pressing piece 144 moves in a way close to the opposing plate 142. After that, when the lug 250 abuts against the other end face 144b of the pressing piece 144, the compressed spring 145 makes the other end face 144b of the pressing piece 144 press the lug 250, so that the pressing mechanism 143 presses the lug 250 against the back of the back plate 110. Finally, the top of the lug 250 abuts against the upright plate 141, so that the sliding of the smart phone 200 is restricted by the sliding restriction portion 140.

[0069] The pair of slide grooves 130 and the single slide limiting portion 140 respectively constitute a pair of first clamping grooves and a single second clamping groove. The pair of ear pieces 240 and the single ear piece 250 are clamped and guided by the pair of first clamping grooves and the single second clamping groove, respectively, so that the positioning (three-axis positioning) of the external lens assembly 100 and the smart phone 200 can be achieved. The pair of slide grooves 130 and the single slide limiting portion 140 form a three-point positioning for the smart phone 200, and a triangle is formed between the three fixed points, so that the smart phone 200 is more firmly positioned on the external lens assembly 100.

[0070] The first connection terminal 150 is used to electrically connect the smartphone 200 to the lens 120 of the external lens assembly 100. The first connection terminal 150 is disposed at the other end side of the pair of slide grooves 130 ( Figure 1 ), specifically, a short edge ( Figure 1 In this embodiment, the first connection terminal 150 and the slide limiting portion 140 are arranged on the short edge of the same side of the back of the back plate 110, that is, Figure 1 upper edge of the .

[0071] When the sliding movement of the smartphone 200 is limited by the sliding limiter 140, the first connection terminal 150 contacts (is connected to) the second connection terminal 260 of the smartphone 200, thereby electrically connecting the smartphone 200 to the external lens assembly 100. Thus, the smartphone 200 can supply power to the external lens assembly 100, so that the external lens assembly 100 does not need a built-in power supply. At the same time, data exchange between the smartphone 200 and the external lens assembly 100 can be achieved, thereby adjusting and controlling the lens 120 through the smartphone 200.

[0072] In addition, when the sliding of the smartphone 200 is restricted by the sliding restriction portion 140, the first connection terminal 150 and the second connection terminal 260 are arranged in the extension direction of the slide groove 130, that is, the insertion and removal direction (length direction) of the smartphone 200, so as to achieve the purpose of quick connection when inserted and quick separation when removed. Therefore, it is only necessary to insert the pair of ear pieces 240 of the smartphone 200 into the pair of slide grooves 130 and slide the smartphone 200 along the extension direction of the slide grooves 130, so that the second connection terminal 260 of the smartphone 200 can be brought into contact with the first connection terminal 150 of the external lens assembly 100. Therefore, there is no need to perform an additional alignment process of the first connection terminal 150 and the second connection terminal 260, so that the operation of installing the smartphone 200 on the external lens assembly 100 is easier.

[0073] In this embodiment, the short edge ( Figure 1On the upper edge thereof, there are bumps provided, and the first connection terminal 150 is formed on the bumps. As described above, the arrangement direction formed by the first connection terminal 150 and the sliding limiting portion 140 is perpendicular to the extending direction of the sliding groove 130 (the length direction of the back plate 110). Thus, it can be ensured that when the sliding of the smartphone 200 is limited by the sliding limiting portion 140, the first connection terminal 150 of the external lens assembly 100 contacts the second connection terminal 260 of the smartphone 200.

[0074] However, the first connection terminal 150 is not limited thereto. In some other embodiments of the present invention, it may also be provided on the sliding limiting portion 140. In this case, the first connection terminal 150 is located on the surface of the opposing plate 142 of the sliding limiting portion 140 facing the smartphone 200. When the sliding of the smartphone 200 is limited by the sliding limiting portion 140, the first connection terminal 150 contacts (connects) the second connection terminal 260 of the smartphone 200. Thus, the first connection terminal 150 can be provided without providing bumps, thereby simplifying the structure of the external lens assembly 100.

[0075] The first horizontal abutting surface 160 is used to contact the second horizontal abutting surface 265 of the smartphone 200. The first horizontal abutting surface 160 is provided on the back surface of the back plate 110, and its flatness is higher than other flat areas on the back surface of the back plate 110. In this embodiment, preferably, the flatness of the first horizontal abutting surface 160 is below 0.01 mm. In addition, the first horizontal abutting surface 160 is located on the outer periphery of the through hole 111, that is, the first horizontal abutting surface 160 surrounds the through hole 111 and is arranged in an annular shape.

[0076] In addition, the first horizontal abutting surface 160 is perpendicular to the optical axis of the lens 120 of the external lens assembly 100. Thus, when the sliding of the smartphone 200 is limited by the sliding limiting portion 140, the first horizontal abutting surface 160 abuts against the second horizontal abutting surface 265 of the smartphone 200, so that the optical axis of the photosensitive element 230 of the smartphone 200 can be perpendicular to the optical axis of the lens 120 of the external lens assembly 100. Therefore, the shooting quality of the shooting device 1 can be improved.

[0077] The locking post 170 is used to lock the locking hole 270 of the smartphone 200. The locking post 170 is provided on the back surface of the back plate 110 in a telescopic manner. In addition, the locking post 170 is located on the first horizontal abutting surface 160. By inserting the locking post 170 into the locking hole 270 of the smartphone 200, the smartphone 200 can be locked relative to the external lens assembly 100. Thereby, the positioning and fixation between the external lens assembly 100 and the smartphone 200 can be ensured.

[0078] In addition, since the smartphone 200 can be locked relative to the external lens assembly 100, the contact between the first connection terminal 150 and the second connection terminal 260 will not be easily released. In this way, it can be ensured that the smartphone 200 continuously supplies power to the external lens assembly 100, ensuring that the photographing device 1 can work properly and guaranteeing its safety and stability in use.

[0079] The locking operation portion 180 is used to operate the expansion and contraction of the locking post 170. The locking operation portion 180 is provided on the back plate 110. In the present embodiment, the locking operation portion 180 is provided at one edge of the back plate 110.

[0080] The locking operation portion 180 can control the expansion and contraction of the locking post 170 in various ways, such as a link mechanism, a gear transmission mechanism, an electromagnetic control mechanism, etc. In the present embodiment, a link mechanism (not shown) is adopted, and the locking operation portion 180 is set as a slider that can slide along the length direction. By sliding the locking operation portion 180, the expansion and contraction of the locking post 170 can be switched. Thus, in the separated state of the smartphone 200 and the external lens assembly 100, that is, in the state where the smartphone 200 does not supply power to the external lens assembly 100, the expansion and contraction of the locking post 170 can also be switched by sliding the locking operation portion 180.

[0081] When the sliding of the smartphone 200 is not restricted by the sliding restriction portion 140, the locking operation portion 180 is located at the first position, so that the locking post 170 is in a contracted state. In this way, when the smartphone 200 is not installed on the back plate 110 of the external lens assembly 100, the locking post 170 that is always in a contracted state is not easily broken. In addition, the smartphone 200 can slide toward the sliding restriction portion 140 side along the extension direction of the sliding groove 130. When the sliding of the smartphone 200 is restricted by the sliding restriction portion 140, by switching the locking operation portion 180 from the first position to the second position, the locking post 170 extends and inserts into the locking hole 270 of the smartphone 200. Thus, the locking post 170 extends into the locking hole 270 to lock the position of the smartphone 200.

[0082] When disassembling the smartphone 200 from the external lens assembly 100, it is necessary to switch the locking operation portion 180 located at the second position to the first position. Thus, the locking post 170 changes from the extended state to the contracted state, and the locking between the locking post 170 and the locking hole 270 is released. In this way, the smartphone 200 can slide and be pulled out along the extension direction of the sliding groove 130.

[0083] Hereinafter, the specific structure of the smartphone 200 will be described.

[0084] The main body 210 of the smart phone 200 is a rectangular plate-like component, inside which there is a substrate (not shown) serving as a circuit board and various electronic components (not shown) connected to the substrate through wires. The length and width of the main body 210 of the smart phone are slightly smaller than the length and width of the back plate 110 of the external lens module 100 respectively. Thus, the smart phone 200 can be received in the receiving space S of the back plate 110 of the external lens module 100. In addition, the back surface of the main body 210 of the smart phone faces the back surface of the back plate 110 of the external lens module 100.

[0085] The opening 220 is circular and is formed at a substantially central position on the back surface which is one side surface of the main body 210 of the smart phone. The opening 220 can ensure that the light from the lens 120 passes through smoothly and reaches the photosensitive element 230. And in this embodiment, the size of the opening 220 can be kept the same as the size of the through hole 111 so that the light from the lens 120 can pass through sufficiently and reach the photosensitive element 230.

[0086] The photosensitive element 230 is used to perform photoelectric conversion on the light from the lens 120, thereby enabling shooting. The photosensitive element 230 is composed of, for example, CCD or CMOS and is arranged inside the opening 220. Specifically, it is arranged on the substrate exposed from the opening 220.

[0087] A pair of lugs 240 are used to match with a pair of sliding grooves 130. The pair of lugs 240 are arranged on a pair of edges of the main body 210 of the smart phone. Specifically, they protrude from a pair of long edges of the main body 210 of the smart phone. Thus, it can be avoided that a pair of long edges of the main body 210 of the smart phone directly contact with the pair of sliding grooves 130, and thereby it can be prevented that the operation buttons (not shown) arranged on a pair of long edges of the main body 210 of the smart phone contact with the sliding grooves 130 during the sliding process of the smart phone 200 and cause misoperations.

[0088] A single lug 250 is used to match with the sliding limit portion 140. The lug 250 is arranged on one edge of the main body 210 of the smart phone. Specifically, it protrudes from the upper edge of one short edge ( Figure 1 of the main body 210 of the smart phone). And both the lugs 240 and 250 are flush with the back surface of the main body 210 of the smart phone for convenient insertion.

[0089] In this embodiment, a pair of lugs 240 and a single lug 250 are respectively fixed to a pair of long edges of the mobile phone body 210 and a short edge on one side of the mobile phone body 210. However, it is not limited thereto. For example, they can also be respectively arranged at a pair of long edges of the mobile phone body 210 and a short edge on one side of the mobile phone body 210 in a detachable manner. In this case, when the smart phone 200 is not mounted on the back plate 110 of the external lens assembly 100, the pair of lugs 240 and the single lug 250 can be detached from the mobile phone body 210, thereby ensuring the aesthetics of the smart phone 200. In other embodiments of the present invention, the pair of lugs 240, the single lug 250, and the pair of sliding grooves 130 and the sliding limiting portions 140 respectively cooperating with them can be set according to actual situations to achieve the purpose of fixing the smart phone 200 on the external lens assembly 100.

[0090] The second connection terminal 260 is used to contact the first connection terminal 150 of the external lens assembly 100. The second connection terminal 260 is arranged at one side edge of the mobile phone body 210. Specifically, it is arranged at the upper side edge of the short edge on one side of the mobile phone body 210 ( Figure 1 ). That is, the lug 150 and the second connection terminal 260 are arranged in the width direction of the mobile phone body 210. In addition, the second connection terminal 260 can also be used to be electrically connected to the connection terminal of other electronic devices. Thereby, the number of connection terminals of the smart phone 200 can be reduced, making the structure of the smart phone 200 simpler and more convenient to manufacture and use.

[0091] The second horizontal abutting surface 265 is used to abut against the first horizontal abutting surface 160 of the external lens assembly 100. The second horizontal abutting surface 265 is arranged on the back surface of the mobile phone body 210, and its flatness is higher than other areas of the back surface of the mobile phone body 210. In this embodiment, preferably, the flatness of the second horizontal abutting surface 265 is below 0.01 mm. In addition, the second horizontal abutting surface 265 is located on the outer periphery of the opening 220, that is, the second horizontal abutting surface 265 surrounds the opening 220 and is arranged in an annular shape. In this embodiment, the second horizontal abutting surface 265 and the first horizontal abutting surface 160 have the same size so that the second horizontal abutting surface 265 and the first horizontal abutting surface 160 can be fully abutted and the contact area is maximized.

[0092] In addition, the second horizontal abutting surface 265 is parallel to the photosensitive element 230. Thus, when the sliding of the smart phone 200 is restricted by the sliding limiting portion 140, the first horizontal abutting surface 160 and the second horizontal abutting surface 265 of the smart phone 200 are surface-abutted, so that the optical axis of the photosensitive element 230 of the smart phone 200 and the lens 120 of the external lens assembly 100 can be perpendicular. Therefore, the shooting quality of the shooting device 1 can be improved.

[0093] The locking hole 270 is used to accommodate the locking post 170 inserted into the external lens assembly 100. The locking hole 270 is provided on the back surface of the mobile phone body 210 and located on the second horizontal abutting surface 265.

[0094] The display unit 280 is used to display the image of the object to be photographed. The display unit 280 is provided on the front surface of the mobile phone body 210 which is the other side surface. The touch panel 290 is used to operate the external lens assembly 100. The touch panel 290 is provided to cover the display unit 280. By touching the touch panel 290 on the display unit 280, the external lens assembly 100 can be operated. Thereby, the operability of the external lens assembly 100 can be greatly improved.

[0095] In addition, the smart phone 200 may further include a cover body (not shown) for covering the opening 220. When the smart phone 200 is not installed on the external lens assembly 100, the cover body can be installed on the opening 220 by means of screw connection or the like, so as to prevent foreign matters such as dust from entering the inside of the mobile phone body 210 of the smart phone 200 through the opening 220. Additionally, the cover body may also be a lens assembly. In this case, the object to be photographed can be photographed through the lens assembly and the photosensitive element 230.

[0096] In this embodiment, the lens operation part is constituted by the touch panel 290, but it is not limited thereto. For example, in other embodiments of the present invention, it may also be constituted by operation keys such as buttons.

[0097] As shown in the Figures 1 - 4B accompanying drawings, in this embodiment, an operation protrusion for facilitating the holding and operation of the imaging device 1 is further provided at one end of the front surface of the back plate 110 in the length direction. The operation protrusion extends outward from the front surface of the back plate 110, and the connection part between it and the back plate 110 is in an arc transition for facilitating holding and operation. The length of the operation protrusion is the same as the width of the back plate 110. In other embodiments of the present invention, the operation protrusion may be provided at any one end of the front surface of the back plate 110 in the length direction or at both ends.

[0098] According to the above embodiments, the following effects are achieved.

[0099] The external lens assembly 100 according to this embodiment is used to connect with the smart phone 200, and includes a back plate 110; a lens 120 provided on the front surface of the back plate 110; a pair of sliding grooves 130 provided on the back surface of the back plate 110 and matching with a pair of lugs 240 of the smart phone 200. Through the matching of the pair of sliding grooves 130 and the pair of lugs 240, the smart phone 200 is slidably installed on the back surface of the back plate 110.

[0100] The smart phone 200 involved in this embodiment is used to connect with the external lens assembly 100, and includes a mobile phone body 210; an opening 220, which is formed on the back of the mobile phone body 210; a photosensitive element 230, which is arranged in the opening 220; a pair of ear pieces 240, which are arranged on the mobile phone body 210 and match with the pair of slide grooves 130 of the external lens assembly 100. Through the matching of the pair of slide grooves 130 and the pair of ear pieces 240, the mobile phone body 210 is slidably installed on the external lens assembly 100.

[0101] The photographing device 1 according to this embodiment includes the above-mentioned external lens assembly 100 and the above-mentioned smart phone 200 .

[0102] According to the above structure, since the pair of slide grooves 130 of the external lens assembly 100 matches the pair of ear pieces 240 of the smart phone 200, compared with the case where the external lens assembly is installed on the smart phone in a clamping manner, the external lens assembly 100 is not easy to fall off from the smart phone 200, thereby improving the practicality, safety of use and stability of the external lens assembly 100.

[0103] In addition, in this embodiment, one end side of the pair of slide grooves 130 is for inserting a pair of ear pieces 240 of the smartphone 200, and the other end side of the pair of slide grooves 130 is provided with a slide limiting portion 140 for limiting the sliding of the smartphone 200. According to this structure, the sliding limiting portion 140 matches the ear piece 250 of the smartphone 200, so that the sliding of the smartphone 200 toward the upper side relative to the back plate 110 can be limited.

[0104] In addition, in this embodiment, a first connection terminal 150 is further provided on the other end side of the back plate 110 relative to the pair of slide grooves 130. When the sliding of the smart phone 200 is restricted by the slide restriction portion 140, the first connection terminal 150 contacts the second connection terminal 260 provided on the smart phone 200, and the direction formed by the first connection terminal 150 and the second connection terminal 260 is parallel to the extension direction of the slide groove 130. According to this structure, the smart phone 200 can be electrically connected to the external lens assembly 100, so that the smart phone 200 supplies power to the external lens assembly 100, so that the external lens assembly 100 does not need a built-in power supply. At the same time, data exchange between the smart phone 200 and the external lens assembly 100 can be achieved, so that the lens 120 can be adjusted and controlled by the smart phone 200.

[0105] In addition, since the first connection terminal 150 and the second connection terminal 260 are arranged in the extending direction of the sliding groove 130, that is, the plugging direction (length direction) of the smartphone 200, only a pair of lugs 240 of the smartphone 200 need to be inserted into the pair of sliding grooves 130, and the smartphone 200 is slid along the extending direction of the sliding groove 130, so that the second connection terminal 260 of the smartphone 200 can be brought into contact with the first connection terminal 150 of the external lens assembly 100. Thus, the alignment process of the first connection terminal 150 and the second connection terminal 260 is not required, making the operation of mounting the smartphone 200 on the external lens assembly 100 more convenient.

[0106] In addition, in the present embodiment, the arrangement direction formed by the first connection terminal 150 and the sliding restriction portion 140 is perpendicular to the extending direction of the sliding groove 130. According to this structure, it can be ensured that when the sliding of the smartphone 200 is restricted by the sliding restriction portion 140, the first connection terminal 150 of the external lens assembly 100 is in contact with the second connection terminal 260 of the smartphone 200.

[0107] In addition, in other embodiments of the present invention, the first connection terminal 150 is provided on the surface of the sliding restriction portion 140 facing the smartphone 200. According to this structure, the first connection terminal 150 can be provided without setting a bump, thereby simplifying the structure of the external lens assembly 100.

[0108] In addition, in the present embodiment, the pair of sliding grooves 130 and the sliding restriction portion 140 respectively constitute a first clamping groove and a second clamping groove, and the first clamping groove and the second clamping groove respectively include pressing mechanisms 133 and 143, and the pressing mechanisms 133 and 143 press the smartphone 200 against the back surface of the back plate 110. According to this structure, the pair of lugs 240 and the single lug 250 are respectively clamped by the pair of first clamping grooves and the single second clamping groove, so that the positioning of the external lens assembly 100 and the smartphone 200 (triaxial positioning) can be achieved. In addition, by pressing the smartphone 200 against the back surface of the back plate 110 through the pressing mechanisms 133 and 143, loosening between the external lens assembly 100 and the smartphone 200 can be avoided, which may cause a change in the flange distance between the lens 120 and the smartphone 200.

[0109] In addition, in the present embodiment, the external lens assembly 100 further includes a locking post 170, and the locking post 170 is provided on the back surface of the back plate 110 in a retractable manner. When the sliding of the smartphone 200 is restricted by the sliding restriction portion 140, the locking post 170 is extended to lock the locking hole 270 on the smartphone 200.

[0110] According to this structure, by inserting the locking post 170 into the locking hole 270 of the smart phone 200, the smart phone 200 can be locked relative to the external lens module 100. Thereby, the positioning between the external lens module 100 and the smart phone 200 can be ensured. In addition, since the smart phone 200 can be locked relative to the external lens module 100, the contact between the first connection terminal 150 and the second connection terminal 260 will not be easily released, ensuring a stable electrical connection between the external lens module 100 and the smart phone 200. In this way, it can be ensured that the smart phone 200 continuously supplies power to the external lens module 100, ensuring that the photographing device 1 can work properly, and the external lens module 100 is operated through the smart phone 200.

[0111] In addition, the photographing device 1 according to the present embodiment includes the above-mentioned external lens module 100 and smart phone 200. The smart phone 200 includes a phone body 210; an opening 220 formed on the back surface of the phone body 210; an image sensor 230 disposed in the opening 220; a display unit 280 provided on the front surface of the phone body 210; and a touch panel 290 for operating the external lens module 100 through the display unit 280. According to this structure, since the external lens module 100 can be operated through the display unit 280, the operability of the external lens module 100 can be greatly improved.

[0112] In addition, in the present embodiment, a pair of lugs 240 that match the pair of sliding grooves 130 of the external lens module 100 are provided on a pair of edges of the smart phone 200. According to this structure, since the pair of sliding grooves 130 of the external lens module 100 match the pair of lugs 240 of the smart phone 200, it is possible to prevent the pair of long edges of the phone body 210 from directly contacting the pair of sliding grooves 130, thereby preventing the operation buttons (not shown) provided on the pair of long edges of the phone body 210 of the smart phone 200 from contacting the sliding grooves 130 during the sliding process and causing misoperation.

[0113] Next, a modified example of the photographing device 1 according to the present embodiment will be described.

[0114] In the above embodiment, the pair of sliding grooves 130 and the pair of lugs 240 are respectively provided on the back plate 110 of the external lens module 100 and the phone body 210 of the smart phone 200, but it is not limited thereto. For example, they can also be respectively provided on the phone body 210 of the smart phone 200 and the back plate 110 of the external lens module 100. That is, the installation positions of the pair of sliding grooves 130 and the pair of lugs 240 are interchanged. In this case, the back plate 110 of the external lens module 100 is received by the back surface of the phone body 210 of the smart phone 200.

[0115] In addition, in the above-described embodiment, the pressing mechanisms 133 and 143 are respectively constituted by the elastic pieces 134, the pressing pieces 144, and the springs 145. However, the present invention is not limited thereto. For example, both of them may be constituted by the elastic pieces 134, or both of them may be constituted by the pressing pieces 144 and the springs 145, or the pressing mechanisms 133 and 143 may be respectively constituted by the pressing pieces 144 and the springs 145 and the elastic pieces 134.

[0116] In addition, in the above-described embodiment, the locking operation portion 180 controls the expansion and contraction of the locking column 170 by means of a link mechanism. However, the present invention is not limited thereto. For example, an electromagnetic control method may also be adopted.

[0117] Specifically, an elastic member (not shown) and an electromagnetic component (not shown) are provided at the bottom of the locking column 170. The elastic member is fixed above the electromagnetic component, and the locking column 170 is fixed above the elastic member. The locking column 170 is ejected onto the surface of the back plate 110 by the elastic force of the elastic member. The locking column 170 is made of metal, and the locking operation portion 180 controls the opening and closing of the circuit of the electromagnetic component. In addition, the external lens assembly 100 is internally provided with a built-in power source for supplying power to the electromagnetic component.

[0118] When the locking operation portion 180 is pressed, the circuit in the electromagnetic component is closed, the electromagnetic component generates a magnetic field, and a magnetic attraction effect is exerted on the locking column 170, causing the locking column 170 to contract. When the pressing of the locking operation portion 180 is released, the circuit in the electromagnetic component is disconnected, the magnetic attraction effect disappears, and the elastic member ejects the locking column 170.

[0119] In addition, in the above-described embodiment, the locking column 170 and the locking hole 270 are respectively provided on the back surface of the back plate 110 of the external lens assembly 100 and the back surface of the mobile phone body 210 of the smart phone 200. However, the present invention is not limited thereto. For example, they may be respectively provided on the back surface of the mobile phone body 210 of the smart phone 200 and the back surface of the back plate 110 of the external lens assembly 100. That is, the installation positions of the locking column 170 and the locking hole 270 are interchanged. In this case, the locking operation portion 180 for operating the expansion and contraction of the locking column 170 also needs to be provided on the smart phone 200 side. The locking operation portion 180 can also be constituted by the touch panel 290.

[0120] Although the first embodiment of the present invention has been described above, the above-described first embodiment only shows a part of the application examples of the present invention, and does not mean that the technical scope of the present invention is limited to the specific structure of the above-described first embodiment.

[0121] Second Embodiment

[0122] Hereinafter, with reference to Figures 7 to 10A description will be given of the photographing apparatus 1 according to the second embodiment of the present invention. In addition, in the present embodiment, the description of the same points as those in the above-described first embodiment will be omitted, and mainly the points different from those in the above-described first embodiment will be described.

[0123] In the above-described first embodiment, the sliding grooves 130 are provided at a pair of long edges on the back surface of the back plate 110, but it is not limited thereto. For example, as Figures 7 to 9 shown, they may also be provided at a pair of short edges on the back surface of the back plate 110.

[0124] In the present embodiment, the pair of sliding grooves 130 are used to match with a pair of short outer edges (a pair of outer edges) 240A (refer to Figure 7 and Figure 8 ) of the mobile phone body 210 of the smart phone 200, which serve as a pair of slide bars. Here, the pair of short outer edges 240A replace the pair of lugs 240 in the first embodiment. In addition, no operation buttons are provided on the pair of short outer edges 240A. Thus, during the process of the pair of short outer edges 240A sliding in the pair of sliding grooves 130, no malfunction will be caused by the contact between the operation buttons and the sliding grooves 130.

[0125] In addition, in the present embodiment, the pair of sliding grooves 130 extend along the width direction of the back plate 110 and span the entire pair of short edges on the back surface of the back plate 110. One end side ( Figure 7 the upper side) of the pair of sliding grooves 130 is for inserting the smart phone 200. Thus, the smart phone 200 can be slid and stored from the upper side to the lower side on the back surface of the back plate 110 by the matching of the pair of sliding grooves 130 with the pair of short outer edges 240A.

[0126] In addition, a sliding restriction portion 140 is provided at the other end side ( Figure 7 the lower side) of the pair of sliding grooves 130, and the sliding restriction portion 140 extends along the length direction of the back plate 110. The sliding groove restriction portion 140 is used to abut against one long outer edge 250A ( Figure 7 the lower outer edge) of the mobile phone body 210 to restrict the sliding of the smart phone 200. The one long outer edge 250A replaces the single lug 250 in the first embodiment.

[0127] As described above, since the pair of short outer edges 240A and the one long outer edge 250A in the present embodiment respectively replace the pair of lugs 240 and the single lug 250 in the first embodiment, there are no redundant protrusions on the outer edge of the mobile phone body 210 of the smart phone 200, thus ensuring the aesthetics of the smart phone 200.

[0128] One surface of one sliding groove restriction portion 140 opposed to the one long outer edge 250A of the mobile phone body 210 ( Figure 9A first connection terminal 150 is provided on the upper surface of

[0129] In addition, in the above first embodiment, the locking operation portion 180 is provided at one edge of the back plate 110, but it is not limited thereto. For example, it may also be provided on the back surface of the back plate 110 and on the side away from the back plate 110 of the sliding groove 130 as Figures 8 to 10 shown, so as to facilitate operation better.

[0130] In addition, in this embodiment, operation protrusions for facilitating the holding and operation of the imaging device 1 are provided at both ends in the length direction of the front surface of the back plate 110.

[0131] The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. It is not intended to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. An external lens assembly for connecting to a mobile terminal, characterized in that: a back plate; a lens disposed on one side of the back plate; a guiding member disposed on the other side of the back plate and matching with a guided member of the mobile terminal, through the matching of the guiding member and the guided member, the mobile terminal is slidably mounted on the other side of the back plate; the guiding member is a pair of sliding grooves disposed on the other side of the back plate, one end side of the pair of sliding grooves is for inserting the guided member of the mobile terminal, and the other end side of the pair of sliding grooves is provided with a sliding limiting portion for limiting the sliding of the mobile terminal; the pair of sliding grooves and the sliding limiting portion respectively constitute a first clamping groove and a second clamping groove, both the first clamping groove and the second clamping groove have a pressing mechanism, and the pressing mechanism presses the mobile terminal against the other side of the back plate; the sliding groove includes a vertical plate and an opposing plate, and the pressing mechanism is disposed inside the opposing plate. The pressing mechanism in the sliding groove is composed of an elastic sheet, and the elastic sheet is used to press the guided member to fix the mobile terminal on the back plate; the sliding limiting portion includes a vertical plate and an opposing plate, and the pressing mechanism of the sliding limiting portion includes a pressing piece and a spring. The pressing piece is used to press the guided member, and the spring is used to connect the pressing piece and the opposing plate; further comprising: a locking member disposed on the other side of the back plate in a retractable manner, when the sliding of the mobile terminal is limited by the sliding limiting portion, by extending the locking member, the locked member formed on the mobile terminal is locked; further comprising: a locked member disposed on the other side of the back plate, when the sliding of the mobile terminal is limited by the sliding limiting portion, by extending the retractable locking member formed on the mobile terminal, the locked member is locked.

2. The external lens assembly according to claim 1, characterized in that, a first connection terminal is further disposed on the other end side of the pair of sliding grooves, when the sliding of the mobile terminal is limited by the sliding limiting portion, the first connection terminal contacts the second connection terminal disposed on the mobile terminal, the first connection terminal and the second connection terminal are arranged in the extending direction of the pair of sliding grooves.

3. The external lens assembly according to claim 2, characterized in that, the first connection terminal and the sliding limiting portion are arranged in a direction orthogonal to the extending direction of the pair of sliding grooves.

4. The external lens assembly according to claim 2, characterized in that, the first connection terminal is disposed on one surface of the sliding limiting portion opposite to the mobile terminal.

5. A photographing device comprising the external lens assembly according to any one of claims 1 to 4 and a mobile terminal.

6. The photographing device according to claim 5, characterized in that, the mobile terminal has: a mobile terminal body; an opening formed on one side of the mobile terminal body; a photosensitive element disposed in the opening; A display unit, which is arranged on another side surface of the mobile terminal body; A lens operation unit, which operates the external lens assembly through the display unit.

7. A photographing device, which comprises the external lens assembly according to any one of claims 2 to 4 and a mobile terminal, wherein the mobile terminal has: A mobile terminal body; An opening part, which is formed on one side surface of the mobile terminal body; An image sensor, which is arranged in the opening part; A guided member, which is arranged on the mobile terminal body and matches with the pair of sliding grooves of the external lens assembly.

8. The photographing device according to claim 7, characterized in that the guided member is a pair of lugs, and the pair of lugs are arranged on a pair of edges of the mobile terminal body.

9. The photographing device according to claim 7, characterized in that the guided member is a pair of slide bars, and the pair of slide bars are constituted by a pair of outer edges of the mobile terminal body.

10. A mobile terminal, which is used for connecting with the external lens assembly according to any one of claims 1 to 4, characterized in that: A mobile terminal body; An opening part, which is formed on one side surface of the mobile terminal body; An image sensor, which is arranged in the opening part; A guiding member or a guided member, which is arranged on the mobile terminal body and matches with the guided member or the guiding member of the external lens assembly, through the matching of the guiding member and the guided member, the mobile terminal body is installed on the external lens assembly in a slidable manner.

Images