Patent Publication Number: US-2021188436-A1

Title: Photographing device, gimble camera, and unmanned aerial vehicle

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     This application is a continuation of International Application No. PCT/CN2018/107731, filed Sep. 26, 2018, the entire content of which is incorporated herein by reference. 
    
    
     TECHNICAL FIELD 
     The present disclosure relates to the field of photographing technology and, in particularly, to a photographing device, a gimble camera, and an unmanned aerial vehicle. 
     BACKGROUND 
     A camera is a device using the principle of optical imaging to form and record images, which is a product integrating optics, machinery, and electronics. The camera integrates members such as an image information conversion member, an image storage member, and an image transmission member. The camera has characteristics such as digital access mode, interactive processing with a computer, real-time shooting, and etc. 
     The imaging process of the camera includes light entering the camera through a lens or a lens group, converting the light into a digital signal by an imaging element, and storing the digital signal in a storage device via an image processing chip. In the related art, the imaging element of the camera is Charge Coupled Device (CCD), or Complementary Metal-Oxide-Semiconductor (CMOS). When the light passes through the imaging element, the imaging element converts different light into corresponding electronic signals, and then the corresponding electronic signals are recorded and read. However, when the camera is in a low light condition or an insufficient light condition, the image quality of the photo taken by the camera is poor, thereby seriously affecting the using experience of the user. 
     In the related art, an active stabilization gimbal camera does not have a fill light, or a fill light is provided at the base or another part. Because the fill light is provided at a part such as the base, when the gimble camera rotates, the fill light cannot rotate and follow the object in real time according to the rotation of the gimble camera, thereby causing a poor fill light effect. 
     SUMMARY 
     In accordance with the disclosure, there is provided a photographing device including a housing, a fill light mounted at the housing, and a lens module mounted in the housing. Relative position and attitude of the fill light relative to the lens module are fixed. An optical axis of the fill light is approximately parallel to an optical axis of the lens module. The lens module and the fill light rotate together with the housing. 
     Also in accordance with the disclosure, there is provided a gimbal camera including a photographing device and a gimbal coupled to the photographing device and configured to drive the photographing device to rotate and to adjust a shooting direction of the photographing device. The photographing device includes a housing, a fill light mounted at the housing, and a lens module mounted in the housing. Relative position and attitude of the fill light relative to the lens module are fixed. An optical axis of the fill light is approximately parallel to an optical axis of the lens module. The lens module and the fill light rotate together with the housing. 
     Also in accordance with the disclosure, there is provided an unmanned aerial vehicle including an aerial vehicle body and a gimbal camera carried by the aerial vehicle body and communicatively coupled to the aerial vehicle body. The gimbal camera includes a photographing device and a gimbal coupled to the photographing device and configured to drive the photographing device to rotate and to adjust a shooting direction of the photographing device. The photographing device includes a housing, a fill light mounted at the housing, and a lens module mounted in the housing. Relative position and attitude of the fill light relative to the lens module are fixed. An optical axis of the fill light is approximately parallel to an optical axis of the lens module. The lens module and the fill light rotate together with the housing. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a schematic structural diagram of an example photographing device consistent with the disclosure. 
         FIG. 2  is a schematic exploded structural diagram of an example photographing device consistent with the disclosure. 
         FIG. 3  is a schematic structural diagram of an example light guide lens consistent with the disclosure. 
         FIG. 4  is a schematic structural diagram of an example fill light consistent with the disclosure. 
         FIG. 5  is a schematic exploded structural diagram of an example gimbal camera consistent with the disclosure. 
         FIG. 6  is a schematic structural diagram showing a front view of an example handheld gimbal camera consistent with the disclosure. 
         FIG. 7  is a schematic structural diagram showing a perspective view of the example handheld gimbal camera from a first angle. 
         FIG. 8  is a schematic structural diagram showing a perspective view of the example handheld gimbal camera from a second angle. 
         FIG. 9  is a schematic structural diagram of an example unmanned aerial vehicle with an example gimbal camera consistent with the disclosure. 
     
    
    
     Reference numerals: Housing  10 ; Lens hole  11 ; Light hole  12 ; Hood  13 ; Lens cover member  131 ; Connector  132 ; Casing  14 ; Front Casing  141 ; Rear Casing  142 ; Mounting hole  143 ; Mounting member  144 ; Lens module  20 ; Lens assembly  21 ; Lens board  22 ; Contact  221 ; Heat dissipation assembly  23 ; Fill light  30 ; Elevated base  31 ; Base body  311 ; Conductive interface  312 ; Luminous body  32 ; Lens group  40 ; Light guide lens  41 ; Flange member  411 ; Light guide member  412 ; Protection lens  42 ; Photographing device  100 ; Gimbal  200 ; Pitch axis member  201 ; Yaw axis member  202 ; Roll axis member  203 ; Aerial vehicle body  300 ; Handheld member  400 ; Operation member  401 . 
     DETAILED DESCRIPTION OF THE EMBODIMENTS 
     Technical solutions in the embodiments of the present disclosure will be described below with reference to the drawings. It will be appreciated that the described embodiments are some rather than all of the embodiments of the present disclosure. Other embodiments conceived by those having ordinary skills in the art on the basis of the described embodiments without inventive efforts should fall within the scope of the present disclosure. 
     The photographing device, gimbal camera and unmanned aerial vehicle of the present disclosure will be described in detail below with reference to the drawings. As long as there is no conflict, the following embodiments and features of the embodiments may be combined with each other. 
       FIG. 1  is a schematic structural diagram of an example photographing device  100  consistent with the disclosure.  FIG. 2  is a schematic exploded structural diagram of the example photographing device  100 . As shown in  FIG. 1  and  FIG. 2 , the photographing device  100  includes a housing  10 , a fill light  30  mounted at the housing  10 , and a lens module  20  mounted in the housing  10 . The relative position and attitude of the fill light  30  relative to the lens module  20  are fixed, and the optical axis of the fill light  30  is approximately parallel to the optical axis of the lens module  20 . The housing  10  isolates the luminous part of the fill light  30  from the lens module  20 , and the lens module  20  and the fill light  30  rotate together with the housing  10 . 
     The housing  10  is a hollow structure. The lens module  20  and the fill light  30  are mounted at the housing  10 , where the lens module  20  is mounted in the housing  10 . The fill light  30  may be mounted in the housing  10  and emit light out of the housing  10  along the shooting direction parallel to the lens module  20 , or the fill light  30  may be mounted on the surface of the housing  10  and emit light in a direction parallel to a shooting direction of the lens module  20 . The lens module  20  is configured to receive light entering into the housing  10 , including light emitted by the fill light  30  and reflected by a shooting object, to convert the light into corresponding image information, and to output the corresponding image information. The housing  10  isolates the luminous part of the fill light  30  from the lens module  20  to prevent the light emitted by the fill light  30  from passing through the housing  10  and affecting the photosensitive performance of the lens module  20 , thereby reducing interference. 
     Both the lens module  20  and the fill light  30  are fixed at the housing  10 . When the photographing device  100  rotates around one of the axes, both the lens module  20  and the fill light  30  may rotate with the housing  10  to achieve good synchronization of rotation. The optical axis of the lens module  20  and the optical axis of the fill light  30  are arranged approximately in parallel, and the light emitted by the fill light  30  may be in the same direction as the shooting object of the lens module  20  to achieve a good fill light effect and high shooting quality. 
     In an embodiment, the housing  10  includes a lens hole  11  and a light hole  12  arranged side by side. The lens module  20  is arranged corresponding to the lens hole  11 , and the fill light  30  is located in the light hole  12 . The photographing device  100  further includes a lens group  40  configured to cover the lens hole  11  and the light hole  12 . 
     The lens hole  11  and the light hole  12  are arranged at the housing  10  and spaced apart from each other. The central line of the lens hole  11  and the central line of the light hole  12  are approximately parallel to each other. The central axis of the lens module  20  coincides with or parallel to the central line of the lens hole  11 , the lens module  20  may shoot the object via the lens hole  11 , and the light may be sensed by the lens module  20  via the lens hole  11 . The central axis of the light from the fill light  30  may be coincide with or parallel to the central line of the light hole  12 , and the fill light  30  may emit light towards the object via the light hole  12  to achieve a stable light emission direction of the fill light  30  and a high concentration of the light. 
     In some embodiments, the light hole  12  penetrates the housing  10 , and the fill light  30  is mounted in the housing  10  and spaced apart from the lens module  20 . In some embodiments, the housing  10  is provided with a tubular protrusion, the light hole  12  is formed at the enclosed space of the tubular protrusion, and the fill light  30  is mounted in the tubular protrusion and separated from the lens module  20  by the wall of the housing  10 . 
     The lens group  40  is mounted at the housing  10  and correspondingly covers both the lens hole  11  and the light hole  12  to prevent foreign matter from entering the housing  10  via the lens hole  11  or the light hole  12 . The lens group  40  may be made of light transmission material, such as glass, synthetic resin. In some embodiments, patterns and shapes of the lens group  40  can be correspondingly configured such that the light path for receiving or emitting light by the lens group  40  can be adaptively changed to achieve better imaging quality of the lens module  20 . 
     In an example embodiment, the lens group  40  includes a monolithic lens, which is fixed to the housing  10  and covers both the lens hole  11  and the light hole  12 . 
     In an example embodiment, the lens group  40  includes a protection lens  42  and a light guide lens  41 . The protection lens  42  is configured to cover the lens hole  11 , and the light guide lens  41  is configured to cover the light hole  12 . The protection lens  42  and the light guide lens  41  are separately arranged and mounted at the housing  10  to enable the lens module  20  to receive the light passing through the protection lens  42  and to generate corresponding image information. The fill light  30  may emit light outwards via the light guide lens  41  to enable the lens module  20  to obtain better imaging quality. The protection lens  42  and the light guide lens  41  are arranged separately to enable both the protection lens  42  and the light guide lens  41  to be processed easily. The protection lens  42  and the light guide lens  41  are configured to adjust the guiding direction and the refraction direction of the light, respectively, to achieve good flexibility of use. 
     As shown in  FIG. 2  and  FIG. 3 , in an example embodiment, the light guide lens  41  is plug-connected to the light hole  12 . The fill light  30  is arranged corresponding to the light hole  12 , and the light guide lens  41  is plug-connected to the light hole  12  to enable the light guide lens  41  to be closely matched with the light hole  12 . In some embodiments, the light hole  12  has a hole-shaped structure. For example, the light hole  12  is configured as, e.g., a round hole, an elliptical hole, a hole-shaped structure provided with a positioning plane, or a hole-shaped structure with an arc-shaped cross section. In some embodiments, the shape of the cross section of the light guide lens  41  matches the light hole  12 , that is, the cross section of the light guide lens  41  is approximately the same as the cross section of the light hole  12 . In some embodiments, the light guide lens  41  is plug-connected to the light hole  12  and there is a gap between part of the light guide lens  41  and the inner wall of the light hole  12 . The light guide lens  41  is plug-connected to the light hole  12  and hence an accuracy of positioning is high. 
     The light guide lens  41  is fixed to the assembly position of the housing  10 . The position of the fill light  30  relative to the light guide lens  41  is adjusted to achieve a high concentration of the light transmitted by the fill light  30  via the light guide lens  41 , and to cause the position of the fill light  30  to be easily adjusted. 
     In an example embodiment, the light guide lens  41  includes a light guide member  412  and a flange member  411  protruding from the light guide member  412 . The light guide member  412  is inserted to the light hole  12 , and the flange member  411  matches the protection lens  42  and is mounted at the housing  10 . 
     The light guide member  412  and the flange member  411  are integrally formed. When the light guide lens  41  is mounted at the housing  10 , the flange member  411  abuts against the housing  10  and matches the protection lens  42 , and the light guide member  412  extends into the housing  10  through the light hole  12 . The fill light  30  is located in the moving direction of one end of the light guide member  412 , and the light guide member  412  is configured to guide the light emitted by the fill light  30  to pass through the light guide lens  41  and to be emitted outwards through the flange member  411  of the light guide lens  41 . The flange member  411  limits the insertion depth and the insertion position of the light guide member  412  to enable the end surface of the light guide member  412  to be separated from the fill light  30  by a preset distance, thereby maintaining a concentration of light projection. 
     In an example embodiment, the side wall of the light guide lens  41  abuts against the side wall of the protection lens  42  and is smoothly connected at the edge where the two intersect. A part of the edge of the flange member  411  is attached to the protection lens  42  to cause another part of the edge of the protection lens  42  and another part of edge of the flange member  411  to form a smoothly transitioned curved surface or a preset shape. For example, the edges of the protection lens  42  and the light guide lens  41  abut against each other, and the outer edges of the protection lens  42  and the light guide lens  41  form a circular structure. As another example, the edges of the protection lens  42  and the light guide lens  41  abut against each other, and the light guide lens  41  partially protrudes from the edge of the protective lens  42 . The protection lens  42  and the flange member  411  are attached to each other for a good overall appearance. 
     In an example embodiment, the light guide lens  41  and the protection lens  42  are combined to form a circular lens group  40 , the light guide lens  41  includes a curved mirror surface, and the remaining part of the lens group  40  is the protection lens  42 . In some embodiments, the central line of the lens hole  11  coincides with the axis of the lens group  40 . The light hole  12  is deviated from the lens hole  11  by a preset distance, and the light guide lens  41  is arranged corresponding to the light hole  12 . 
     In an embodiment, the light guide lens  41  is separated from the fill light  30  by a preset distance, and the light guide lens  41  is configured to adjust the outward emission direction of the light emitted from the fill light  30  and transmitted through the light guide lens  41 . The light guide lens  41  is mounted at the housing  10 , and the light emitted by the fill light  30  may pass through the light guide lens  41  and be emitted outwards. The shape of the light guide lens  41  is configured to change and adjust the light emission direction. For example, one surface of the light guide lens  41  includes a curved surface or a concave-convex structure to change the light path. Correspondingly, the position of the fill light  30  relative to the light guide lens  41  is adjusted to enable the light emitted by the fill light  30  to pass through the light guide lens  41  and to be output according to a preset trajectory. For example, the light is converged to a focal position, is emitted as parallel light, etc. 
     In an example embodiment, the light guide lens  41  includes a Fresnel lens, and the fill light  30  is located at the focal point of the light guide lens  41 . In some embodiments, the fill light  30  is located at the focal point on the light-converging side of the light guide lens  41 . Correspondingly, the light emitted from the fill light  30  to the surroundings is refracted by the light guide lens  41  to form a parallel beam, which is emitted towards the shooting object to achieve a high light concentration and a good fill light effect. 
     The housing  10  is used to mount the lens module  20  and other accessory, and includes a plurality of components. In an embodiment, as shown in  FIG. 2 , the housing  10  includes a casing  14  and a hood  13  mounted at the casing  14 . The lens hole  11  and the light hole  12  are arranged side by side at the hood  13 , and the lens module  20  is mounted in the casing  14  and extends towards the lens hole  11 . 
     The casing  14  has a hollow structure. An opening is provided at the casing  14  and a mounting space is provided in the casing  14 . The lens module  20  is located in the mounting space and is fixed to the casing  14 . The hood  13  is a part of the housing  10 , and the hood  13  is mounted at the opening of the casing  14  to enable the lens module  20  to be enclosed in the housing  10 . Both the lens hole  11  and the light hole  12  are opened at the hood  13 . 
     The lens module  20  is mounted at the casing  14 , which is convenient for mounting and has a large operation space. The hood  13  is mounted at the housing  10  and approaches the lens module  20 . The lens module  20  and the hood  13  are close to each other to enable the lens module  20  to be close to the lens hole  11 , thereby achieving a good shooting effect and a large shooting range of the lens module  20 . 
     In an example embodiment, the casing  14  is provided with a mounting hole  143 , and the hood  13  is mounted at the mounting hole  143 . The lens group  40  is mounted at the hood  13  and covers both the lens hole  11  and the light hole  12 . This enables the mounting space to transmit light via the lens hole  11  and the light hole  12  at the hood  13 . In some embodiments, the hood  13  and the mounting hole  143  may use one of a screw-connection, an interference-fit, a snap-connection, a fastener-connection, a glue-connection, or another connection method to enable the hood  13  to be tightly connected to the casing  14 . In an example embodiment, the hood  13  and the casing  14  are snap-connected to each other. 
     The lens group  40  is mounted at the hood  13  and covers both the lens hole  11  and the light hole  12  opened at the hood  13 , and the casing  14  covers the openings via the hood  13  and the lens group  40 , which is convenient for assembly. The light may be refracted by the lens group  40  and enter the housing  10  through the lens hole  11 , or the light emitted by the fill light  30  may transmit outwards to the lens group  40  through the light hole  12  and be emitted outwards after being refracted by the lens group  40 , to achieve smooth light transmission. 
     In an example embodiment, the mounting hole  143  has a circular hole structure, the hood  13  has an annular structure, and the hood  13  is inserted into the mounting hole  143  and locked to the casing  14 . In some embodiments, the outer side wall of the hood  13  is provided with flange-shaped protrusions protruding from the surface, the hood  13  is inserted and connected to the mounting hole  143 , and the flange-shaped protrusion abuts against the end wall surface of the mounting hole  143  to achieve a high accuracy of positioning. 
     Both the lens hole  11  and the light hole  12  penetrate the hood  13 , and the lens group  40  is attached to the surface of the hood  13  to cover the lens hole  11  and the light hole  12 . In some embodiments, a groove is provided at the hood  13 , and both the lens hole  11  and the light hole  12  are located at the bottom of the groove. The lens group  40  is mounted at the groove and covers the lens hole  11  and the light hole  12 , which is convenient to assemble. When the lens group  40  includes multiple lenses, the edge contour of the lens group  40  matches the shape of the side wall of the groove. For example, when the groove is a circular or a tapered counterbore, the edge contour of the lens group  40  is a circular. 
     In an example embodiment, the hood  13  includes a lens cover member  131  and a connector  132  surrounding the lens cover member  131  and detachably connected to the casing  14 . Both the lens hole  11  and the light hole  12  are provided at the lens cover member  131 , and the lens hole  11  and the light hole  12  are separated from each other by a preset distance. The connector  132  has an annular structure, and the connector  132  and the lens cover member  131  constitute a groove structure. The lens cover member  131  is located in the connector  132  and at a preset depth from the end of the connector  132 . For example, the depth of the concave region of both the lens cover member  131  and the connector  132  is 2 mm to 8 mm. The connector  132  may be connected to the mounting hole  143  of the casing  14  via a snap-connection or an interference fit. In some embodiments, the surface of the connector  132  partially protrudes to form a flange member  411 , which is used to limit the assembly position of the connector  132  and the casing  14  to achieve a high accuracy of positioning. Both the lens hole  11  and the light hole  12  are opened at the lens cover member  131 . In some embodiments, the lens hole  11  is located at the center of the lens cover member  131 , and the center of the light hole  12  is separated from the center of the lens hole  11  by a preset distance. For example, the light hole  12  is at the edge of the lens cover member  131  and extends to the connector  132 . 
     In an example embodiment, the casing  14  includes a front casing  141  and a rear casing  142  detachably mounted at the front casing  141 , a mounting space is formed between the front casing  141  and the rear casing  142 , and both the hood  13  and the lens module  20  are mounted at the front casing  141  and located in the mounting space. 
     The hood  13 , the fill light  30 , and the lens module  20  are mounted at the front casing  141 . The relative position adjustments between the hood  13 , the fill light  30 , and the lens module  20  all can be performed at the front casing  141 . As such, large operation space and convenient assembly can be achieved. The front casing  141  is mounted at the rear casing  142  to enable both the front casing  141  and the rear casing  142  to be detachably connected, thereby achieving a high efficiency of assembling. 
     As shown in  FIG. 2  and  FIG. 4 , in an embodiment, the fill light  30  is mounted at the lens module  20  or the housing  10 , and is electrically connected to the lens module  20 . The fill light  30  is driven by electrical energy to emit light. The fill light  30  and the lens module  20  share a power supply circuit to reduce the complexity of the connection circuit of the fill light  30  and the lens module  20 , and to reduce the required mounting space. 
     In an example embodiment, the lens module  20  includes a lens board  22  and a lens assembly  21  mounted at the lens board  22 . The lens board  22  is detachably mounted at the housing  10  and used to adjust the shooting direction of the lens assembly  21  relative to the housing  10 . The fill light  30  is mounted at the lens board  22  and electrically connected to the lens board  22 . 
     The fill light  30  is directly mounted at the lens module  20 , where both the fill light  30  and the lens assembly  21  are mounted at the lens board  22 . The position of the fill light  30  relative to the lens assembly  21  at the lens board  22  is adjusted to cause the optical axis of the fill light  30  and the optical axis of the lens assembly  21  to be approximately parallel to each other. When the shooting direction or angle of the lens assembly  21  is adjusted via the lens board  22 , the emission angle and direction of the fill light  30  are adjusted with the lens board  22 , thereby achieving a high efficiency of adjustment and good consistency of the fill light  30  and the lens assembly  21 . 
     The fill light  30  is mounted at the housing  10  and electrically connected to the lens assembly  21  via a wire, to enable the fill light to share the power supply circuit of the lens assembly  21 , or to enable the power supply circuit of the fill light  30  to be provided at the lens board  22 , thereby achieving a small overall volume of the fill light  30  and being convenient to adjust the assembly position at the housing  10 . The fill light  30  may separately adjust the corresponding light emission direction, and the lens assembly  21  may separately adjust the corresponding shooting direction to prevent the fill light  30  and the lens assembly  21  from interfering with each other and to achieve a good adjustment effect. 
     In an example embodiment, the fill light  30  includes an elevated base  31  mounted at the lens module  20  or the housing  10 , and a luminous body  32  mounted at the elevated base  31  and electrically connected to the lens module  20 . 
     The luminous body  32  is mounted at the elevated base  31  and connected with the conductive circuit provided at the elevated base  31 . The elevated base  31  is mounted at the lens module  20  or the housing  10  to adjust the position of the luminous body  32  relative to the light hole  12  and the position and angle of the optical center of the luminous body  32 , thereby causing the position of the luminous body  32  to be easily adjusted. In some embodiments, at least a part of the luminous body  32  extends into the light hole  12  and is close to the lens group  40 . In an embodiment, the optical center of the luminous body  32  is located at the focal point of the light guide lens  41  of the Fresnel lens type. In some embodiments, the luminous body  32  is an LED lamp. 
     The elevated base  31  includes a base body  311  and two conductive interfaces  312  fixed at the base body  311  and electrically connected to the luminous body  32 . In some embodiments, the two conductive interfaces  312  may be connected to the lens module  20  via wires to enable the luminous body  32  to be electrically connected to the lens module  20 . In some other embodiments, the two conductive interfaces  312  may protrude from the base body  311  and be connected to the lens module  20  via, e.g., soldering, plug-in conductive connections, contact crimp connections, etc., to enable the conductive interfaces  312  to be conductively connected to the lens module  20  and to achieve a good contact effect. In some embodiments, the two conductive interfaces  312  are arranged in parallel. 
     In some embodiments, the base body  311  of the elevated base  31  is provided with an edge contour that matches the light hole  12 , and a part of the base body  311  is inserted in the light hole  12  to enable the luminous body  32  to be located at a preset position of the light hole  12  and to achieve a high accuracy of positioning. 
     In an example embodiment, the luminous body  32  is inserted in the housing  10 , and the elevated base  31  is attached to the housing  10  and encloses the luminous body  32  in the housing  10 . The luminous body  32  is inserted into the light hole  12  of the housing  10  to cause the light emitted by the luminous body  32  to be concentrated in the light hole  12 . The elevated base  31  is mounted at one end, which is attached to the housing  10  and covers the light hole  12 , to cause the light emitted by the luminous body  32  to only pass through another end of the light hole  12  and to transmit outwards via the lens group  40 , thereby reducing loss of light and achieving a high light concentration. 
     In an example embodiment, the lens board  22  is provided with a contact  221  electrically connected to the fill light  30 . The contact  221  is provided at the lens board  22  and connected with the power supply circuit or the control circuit in the lens board  22 , and the fill light  30  is conductively connected to the contact  221 , which is convenient for the electrical connection. In some embodiments, the conductive interface  312  of the fill light  30  may be connected to the contact  221  via a wire to enable the luminous body  32  to be electrically connected. In some other embodiments, the contact  221  may be a metal conductive contact provided at the surface of the lens board  22 , and the conductive interface  312  of the fill light  30  may abut against the contact  221  to enable the luminous body  32  to be electrically connected. 
     As shown in  FIGS. 2 and 5 , in an example embodiment, the lens module  20  also includes a heat dissipation assembly  23  attached to the heat generating part of the lens board  22 . The lens assembly  21  is mounted at the lens board  22 . When the lens assembly  21  receives light and converts to image information, a sensor at the lens board  22  may generate a lot of heat, and other elements, such as a processor, mounted at the lens board  22  may also generate a lot of heat. The heat dissipation assembly  23  is mounted at the housing  10  and attached to a heat generation part of the lens board  22  to cause the heat generated at the heat generation part of the lens board  22  to be dissipated via the heat dissipation assembly  23 , and to enable the lens module  20  to be kept at a suitable working temperature, thereby achieving a high efficiency of image processing. 
     In an example embodiment, both the lens module  20  and the luminous body  32  are mounted at the front casing  141 , and the heat dissipation assembly  23  is mounted at the rear casing  142 . The rear casing  142  is mounted at the front casing  141  by, e.g., a snap-connection, or a fastener-connection, etc. The heat dissipation assembly  23  is close to or attached to the heat generation part of the lens module  20 . In some embodiments, a heat-conducting medium made of a heat-conducting material, such as a heat-conducting glue, a heat-conducting pad, etc., is provided between the heat dissipation assembly  23  and the lens module  20 . As such, the heat generated by the lens module  20  can be transferred to the heat dissipation assembly  23  via the heat-conducting medium and then be emitted to external atmosphere via the heat dissipation assembly  23  and/or the housing  10 , thereby achieving a good heat dissipation effect. 
       FIG. 5  is a schematic exploded structural diagram of an example gimbal camera consistent with the disclosure.  FIG. 6  is a schematic structural diagram showing a front view of an example handheld gimbal camera consistent with the disclosure.  FIG. 7  is a schematic structural diagram showing a perspective view of the example handheld gimbal camera from a first angle.  FIG. 8  is a schematic structural diagram showing a perspective view of the example handheld gimbal camera from a second angle. As shown in  FIG. 5  to  FIG. 8 , in an embodiment, the gimbal camera includes a gimbal  200  and the example photographing device  100  described above in connection with  FIG. 1  to  FIG. 4 . The gimbal  200  is used to drive the photographing device  100  to rotate and adjust the shooting direction of the photographing device  100 . The above-described photographing device  100  is applied to the gimbal camera, such that the fill light  30  can rotate synchronously with the lens module  20  and always follow the shooting object when the gimbal  200  drives the photographing device  100  to rotate, thereby providing a suitable fill light effect for the lens module  20  and improving the imaging quality of the lens module  20 . 
     In an example embodiment, the gimbal  200  includes a pitch axis member  201 . The photographing device  100  is mounted at the pitch axis member  201 , and the pitch axis member  201  drives the photographing device  100  to rotate around the axis of the pitch axis member  201 . The housing  10  is provided with a mounting member  144  fixedly connected with the pitch axis member  201  to enable the pitch axis member  201  to drive the photographing device  100  to rotate during the rotation of the pitch axis member  201 . For example, the rotation angle range of the pitch axis member  201  is a rotation range of −90° to 100°, and the rotation angle range of the photographing device  100  is the same as that of the pitch axis member  201 , which is the rotation range of −90° to 100°. 
     In an example embodiment, the mounting member  144  is a shaft hole opened at the housing  10 , and the pitch axis member  201  is provided with a high-precision stabilization motor, which is connected to the housing  10  and corresponds to the shaft hole. The rotation axis of the high-precision stabilization motor coincides with the axis of the rotation shaft hole, and the axis of the rotation shaft hole is perpendicular to the shooting direction of the lens module  20 . 
     In an example embodiment, the mounting member  144  is a rotation shaft protruding from the housing  10 , and the pitch axis member  201  is provided with a high-precision stabilization motor, which is connected to the rotation shaft. The rotation shaft of the high-precision stabilization motor coincides with the axis of the rotation shaft, and the axis of the rotation shaft is perpendicular to the shooting direction of the lens module  20 . 
     In an embodiment, the gimbal  200  also includes a yaw axis member  202  and a roll axis member  203  rotatably mounted at the yaw axis member  202 . The yaw axis member  202  drives the roll axis member  203  to rotate around the axis of the yaw axis member  202 . The pitch axis member  201  is mounted at the roll axis member  203 , and the roll axis member  203  drives the pitch axis member  201  to rotate around the axis of the roll axis member  203 . 
     The gimbal  200  is a three-axis gimbal  200 , which may drive the photographing device  100  to rotate flexibly with a large angle, and the photographing device  100  may shoot corresponding image information, thereby causing the shooting angle to be adjusted easily and achieving a good flexibility. For example, the yaw axis member  202  rotates within a yaw angle of ±160° to cause the yaw shooting angle of the photographing device  100  to reach ±160°. The roll axis member  203  rotates within a roll angle of ±90° to cause the roll shooting angle of the photographing device  100  to reach ±90°. 
     The gimbal  200  may drive the photographing device  100  to rotate according to a corresponding control instruction, to achieve good controllability of the shooting direction of the photographing device  100 . The fill light  30  may move synchronously with the rotation of the photographing device  100 , which may provide the lens module  20  with a good fill light effect in time. As such, when the shooting scene of the photographing device  100  changes or the photographing device  100  needs to shoot in a low light condition, the fill light  30  can always follow the object, and the light emission direction can always be consistent with the shooting direction of the lens module  20 . Therefore, the fill light  30  can provide fill light to the object in time and the lens module  20  can obtain clear image information of the object, thereby achieving a good shooting effect. 
     In an embodiment, the gimbal  200  is in communicative connection with the photographing device  100 , and the fill light  30  is turned on when the gimbal  200  receives a control instruction to turn on the fill light  30 . 
     The fill light  30  may be turned on or off by the gimbal  200  besides being turned on and off manually. For example, in a low light condition, when an operation terminal sends to the gimbal  200  a control instruction to turn on the fill light  30 , the gimbal  200  controls to turn on the fill light  30  of the photographing device  100 . Further, the fill light hole is controlled to be closed to save energy and improve the endurance of the gimbal camera. In some embodiments, the operation terminal is a remote control device, such as a remote controller, a mobile phone, or another wireless communication device, and the operation terminal is equipped with control software for sending corresponding control instructions, which is convenient for operation. 
     In an embodiment, the gimbal camera also includes a handheld member  400  mounted at the gimbal  200 . The gimbal  200  is mounted at the handheld member  400  to enable the handheld member  400  to manually control the operation of the gimbal  200  and the photographing device  100 . In some embodiments, the handheld member  400  includes a handle and at least one operation member  401  provided at the handle, where the operation member  401  may be a control button or a wheel. The operation member  401  is used to control the gimbal  200  and/or the photographing device  100  to perform a corresponding function. For example, the operating member  401  is a control button, which is used to control the fill light  30  to be on or off, or to cooperate with another button to control the photographing device  100  to perform multiple functions, such as shooting the object, adjusting the brightness of the fill light  30  and the fill light effect. The operation member  401  may also be provided at the handle to control the rotation of the corresponding axis of the gimbal  200 , to enable the photographing device  100  to obtain a suitable shooting angle and a shooting effect. 
     As shown in  FIG. 9 , the example gimbal camera described above in connection with  FIG. 5  can be applied to an unmanned aerial vehicle. The unmanned aerial vehicle includes an aerial vehicle body  300  and the above-described gimbal camera. The aerial vehicle body  300  is communicatively connected to the gimbal camera. 
     The aerial vehicle body  300  may be configured as a four-rotor, six-rotor, eight-rotor, and another multi-rotor aerial vehicle structure, and the gimbal camera is mounted at the aerial vehicle body  300 . The unmanned aerial vehicle can obtain corresponding image information via the photographing device  100  during flight. In addition, a user may manually control to turn on the fill light  30  according to the changes in the environment, or the aerial vehicle body  300  may control to turn on the fill light  30  by detecting the light intensity of the external environment, thereby improving the shooting quality of the photographing device  100 . The fill light  30  may move synchronously with the shooting device  100  to achieve good consistency. 
     The relational terms, such as “first” and “second” are only used to distinguish one entity or operation from another entity or operation, which may not indicate or imply any such actual relationship or order between the entities or operations. The terms “include,” “contain,” and any other variants are intended to cover non-exclusive inclusion, which cause a process, method, article, or device including a series of elements not only includes the listed elements, but also includes other elements that are not explicitly listed, or elements inherent to the process, method, article, or device. Unless otherwise defined, the use of “including a . . . ” followed by an element does not exclude the existence of another same element in the process, method, article, or device. 
     The photographing device, gimbal camera, and unmanned aerial vehicle consistent with the embodiments of the present disclosure are described in detail above. Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the embodiments disclosed herein. It is intended that the specification and embodiments be considered as example only and not to limit the scope of the disclosure, with a true scope and spirit of the invention being indicated by the following claims.