Abstract: A lens apparatus includes a fixed member having one of a click generator and a groove part in which a groove part is formed, an operation ring having the other of the click generator and the groove part, and rotatable relative to the fixed member, a click detector configured to detect contact between the click generator and the groove part, and a rotation detector configured to detect rotation of the operation ring. The groove part has groove portions and non-groove portions alternately arranged. The click generator is biased along an optical axis direction and is in contact with the groove part. The click detector and the rotation detector are disposed along the optical axis direction.

Abstract: According to some embodiments, a portable electronic device is described. The portable electronic device includes a housing member defining an external sidewall, a first glass cover and a second glass cover, where the second glass cover includes a first region having a first exterior surface, a second region having a second exterior surface vertically displaced from the first exterior surface, where the second region includes a first opening, a second opening, and a third opening, and a transition region having an exterior surface that extends between the first exterior surface to the second exterior surface. The portable electronic device further includes a first camera module disposed within the first opening, a second camera module disposed within the second opening, a strobe module disposed within the third opening, and a trim structure having an edge that overlays the second region of the second glass cover.

Abstract: A vehicular camera includes a camera housing having front and rear camera housing portions. An imager is disposed at a printed circuit board. A lens assembly is disposed at the front camera housing portion and accommodates at least one lens. The front camera housing portion is formed of a material having a first Coefficient of Thermal Expansion (CTE). At least two attachment elements are disposed at the front camera housing portion and are formed of a material having a second CTE that is less than the first CTE of the front camera housing portion and that is less than 10 ppm/° C. The printed circuit board is mounted at the attachment elements via fasteners threadedly engaging respective ones of the at least two attachment elements. The front camera housing portion and the attachment elements cooperate to decrease temperature-induced movement of the printed circuit board relative to the at least one lens.

Abstract: An image sensor attached to a printed circuit board is installed in a camera. A holder includes first and second rails comprising first and second printed circuit boards, respectively, and the holder is fastened to a lens mount of the camera. The holder may be fastened to captively hold the image sensor, and the image sensor may be resiliently supported when captively held. A gripper grasps the image sensor proximate to the holder and aligns the image sensor to an aligned position of the image sensor relative to the lens mount. The image sensor may be moved to the aligned position after directing an image toward the image sensor to produce a processed image for determining relative alignment. The printed circuit board is soldered to the first and/or second printed circuit board such that the holder fixedly holds the image sensor so it is unmovable in its aligned position.

Abstract: In one aspect of the present disclosure, a digital image capturing device (DICD) is disclosed that includes a device body with a printed circuit board (PCB), and an integrated sensor-lens assembly (ISLA) that is configured for releasable connection to the device body. The PCB defines a plurality of openings that extend therethrough and includes a plurality of connector pins that are fixedly positioned within the openings. The ISLA includes at least one connective surface that is configured for contact with the connector pins to establish electrical communication between the device body and the ISLA.

Abstract: Provided are a camera system, an interchangeable lens, a camera, and a power supply method of a camera system capable of simplifying a configuration. In a camera system (1) comprising a camera (10) and an interchangeable lens (100), a plurality of pieces of lens-drive power (VL1 to VL3) having different voltages are supplied from the camera (10) to the interchangeable lens (100). The interchangeable lens (100) drives a plurality of optical member drive units such as a focus drive unit and a stop drive unit using the plurality of supplied pieces of lens-drive power (VL1 to VL3). Further, system power for operating a lens microcomputer (114) is generated using the lens-drive power (VL1) having the lowest voltage among the plurality of supplied pieces of lens-drive power (VL1 to VL3).

Abstract: A camera body includes a plurality of electric contacts in a first set and a second set. When a lens apparatus is mounted to the camera body, the first set of the electric contacts comes into contact with an electric contact disposed on the lens apparatus before coming into contact with the second set of electric contacts.

Abstract: An accessory attachable to and detachable from an image pickup apparatus includes a second mount portion including a plurality of second bayonet claw portions capable of engaging with a plurality of first bayonet claw portions, a plurality of second terminals capable of contacting with a plurality of first terminals, an accessory body, and a mount fixing member for fixing the second mount portion to the accessory body. The plurality of second terminals is provided at positions different from positions of the plurality of second bayonet claw portions, and all of multiple second terminals, among the plurality of second terminals, used in communication between the image pickup apparatus and the accessory are provided at predetermined positions.

Abstract: A motorized joint unit comprises a pair of shells defining an inner cavity, the pair of shells adapted to be connected to adjacent links of an articulated mechanism. A rotor and stator in the inner cavity are actuatable to cause a relative rotation therebetween. A shaft connected to the rotor to rotate with the rotor relative to the stator. A support coupled to the shaft by a mechanism, the support being connected to one of the shells to impart a rotation of the shaft to the shell, the support defining an annular wall. One or more strain gauges are located on said annular wall of the support. A printed circuit board (PCB) is applied against the annular wall and electrically connected to the at least one strain gauge, the PCB adapted to be electrically linked to a controller.

Abstract: A lens device includes a lens barrel and a first lens. The lens barrel includes an object-side end. The first lens is fixed to the object-side end of the lens barrel, is configured to form an optical axis, and includes a minor diameter portion near an object side of the lens device and a major diameter portion near an image side of the lens device. The major diameter portion is connected to the minor diameter portion. A section of the first lens sectioned along the optical axis is higher at a middle portion than at both side portions. The first lens is protruded at the middle portion towards the object side to form a pillar with respect to the both side portions thereof.

Abstract: A lens unit may include a plurality of lenses and a holder to hold the lenses. The lenses may include a cemented lens including a first lens and a second lens disposed on an image side with respect to the first lens. The first lens and the second lens may be joined by adhesive. The first lens may include a first lens face located on a side of the second lens and a first flange face. The second lens may include a second lens face located on a side of the first lens and a second flange face. The adhesive may be provided across a first boundary portion between the first lens face and the first flange face and across a second boundary portion between the second lens face and the second flange face. The second boundary portion may include one of a recessed part and a protruded part.

Abstract: A test fixture for holding and testing portions of an optical device, such as a plurality of cameras of an eyewear device. The test fixture includes a relay lens such that the fixture can be positioned close to a test screen displaying a patterned test image and reducing the size and cost of parts. The test fixture includes one or more lasers configured to easily and quickly align the test fixture. The test fixture includes an actuator for selectively positioning the cameras behind the relay lens to check for image quality.

Abstract: The present disclosure provides a lens module. The lens module includes a lens and a bearing seat matching connected to the lens; the lens includes a lens barrel, the lens barrel includes a first barrel provided with an optical aperture and a second barrel wall bending and extending from the first barrel wall; the bearing seat includes a surrounding wall around the second barrel wall; the lens is assembled on the bearing seat, the lens and the surrounding wall form an adhesive accommodating slot. The second barrel wall and the surrounding wall are bonded via the adhesive accommodating slot. Compared with related technologies, the lens module of the present disclosure occupies a smaller space, increases a screen-to-body ratio of an electronic product, and has low production difficulty.

Abstract: An interchangeable lens that is removably attachable to a camera body includes: a moving member that is movable within the interchangeable lens; a first communication unit that performs first communication with the camera body; and a second communication unit that performs second communication in which data is periodically transmitted to the camera body; wherein: the data transmitted in the second communication includes first information indicating a position of the moving member and second information that can be used for calculation of a movement amount of the moving member.

Abstract: A gripping device that enables a user to operate operation members like switches favorably. The gripping device is attached to an electronic apparatus and is used for gripping the electronic apparatus. The gripping device includes a gripping member of which a side surface is approximately circular, and an operation member that has an operation panel arranged along a circumference of the gripping member and that is operated for causing a predetermined action of the electronic apparatus. The operation member allows at least a first operation that presses the operation panel in a radial direction of the gripping member and a second operation that slides the operation panel in a circumferential direction of the gripping member from a position moved by the first operation.

Abstract: An image capturing apparatus on which, and from which, an accessory is mountable and dismountable includes a plurality of terminals disposed in a circumferential direction of a mount, and a terminal holder. The terminal holder has a height level difference for holding the terminals at different positions in a center-axis direction of the mount. The terminals include a first terminal configured to be used to supply power for driving an internal component of the accessory, and a second terminal configured to indicate a ground level corresponding to the first terminal. The second terminal is disposed nearer in a mount direction of the accessory than the other terminals on a predetermined stage of the terminal holder, and is connected to a corresponding one of a plurality of terminals of the accessory first among the terminals when the accessory is mounted on the image capturing apparatus.

Abstract: An image capturing apparatus on which an accessory including a first mount is mountable includes a second mount. The second mount is configured to allow bayonet coupling to the first mount of the accessory. The second mount includes a plurality of terminals disposed in a circumferential direction, and a terminal holder configured to hold the plurality of terminals. Each of the plurality of terminals is electrically connectable to a terminal of the accessory. The terminal holder has a height level difference in a center-axis direction of the second mount. The plurality of terminals include a first terminal configured to be used to detect mounting of the accessory on the image capturing apparatus. The first terminal is disposed further in a mount direction of the accessory than the other terminals among the plurality of terminals on a first stage of the terminal holder.

Abstract: An exchangeable lens includes: a mount unit at which a camera body is detachably engaged; a plurality of drive target members, conditions of which change as a drive force is applied thereto; an initialization unit that executes initialization processing for each of the plurality of drive target members; an initialization status transmission unit that transmits initialization statuses, each indicating a status of the initialization processing executed for one of the drive target members, to the camera body via a first transmission path over predetermined first cycles; and a drive condition transmission unit that transmits a drive condition of at least one drive target member among the plurality of drive target members to the camera body via a second transmission path different from the first transmission path over predetermined second cycles different from the predetermined first cycles.

Abstract: An imaging apparatus includes: a first camera communication control unit configured to transmit, from the imaging apparatus to the accessory device, a control command for controlling operations of the accessory device, via a first communication channel provided between the imaging apparatus and the accessory device, and receive data transmitted from the accessory device in response to the control command; and a second camera communication control unit configured to receive optical data of the accessory device transmitted from the accessory device, via a second communication channel provided between the imaging apparatus and the accessory device separate from the first communication channel.

Abstract: A camera system is provided and includes a lens module, a photosensitive module and a fixed frame. The lens module includes a first lens and a lens barrel. The lens barrel is for accommodating the first lens. The photosensitive module includes a photosensitive element and a base. The photosensitive element corresponds to the lens module, and the photosensitive element is disposed on the base. The lens module and the photosensitive module are disposed on the fixed frame, and the lens barrel is made of a material with a thermal expansion coefficient less than 50 (10?6/K @ 20° C.).

Abstract: An apparatus includes a camera unit including an optical lens, a circuit board unit connected to the camera unit and disposed at a periphery of the camera unit, and a casing including a first housing body and a second housing body attachable to the first housing body. The first housing body and the second housing body are configured to enclose a receiving space to receive the camera unit and the circuit board unit, and jointly define a front opening that intersects with an optical axis of the optical lens.

Abstract: An accessory for a camera body, the camera body including a second camera-side clock terminal to which a second clock signal is input, a first camera-side power supply terminal that outputs first power, and a camera-side input terminal to which a signal indicating whether or not data communication is allowed is input, the accessory includes: a second terminal that contacts with the first camera-side power supply terminal; a sixth terminal that contacts with the camera-side input terminal; a tenth terminal that contacts with the second camera-side clock terminal; a first terminal group comprising a plurality of terminals between the second terminal and the sixth terminal; and a second terminal group comprising a plurality of terminals between the sixth terminal and the tenth terminal, wherein the number of terminals in the first terminal group is same as the number of terminals in the second terminals.

Abstract: The image sensor includes a body module, and a lens module and an imaging module installed in the body module. The body module includes: a correction part performing shading correction on image data outputted by the imaging module installed in the body module according to the set shading correction information; an acquisition part acquiring information related to a size of an imaging element in the imaging module installed in the body module and acquiring light amount ratio information representing a ratio of a light amount at least two positions on an imaging surface of the imaging element from the lens module installed in the body module; and a generation and setting part generating shading correction information based on the information acquired by the acquisition part and setting the shading correction information to the correction part.

Abstract: Included are multiple mount claws, and multiple contact pins following the circumferential direction of a second mount. The second mount can rotate to a first state where multiple claws of a first mount are inserted between the multiple mount claws, and a second state where the multiple mount claws engage the claws in a center axis direction. In the first state, a first mount claw is included in an angle range where a first contact pin of the multiple contact pins and a center axis of the mount are connected in the radial direction of the mount, and a first contact face of the multiple contact faces and the center axis are connected in the radial direction of the mount. The first contact pin and the first contact face come into contact first when rotating from the first state to the second state.

Abstract: A mount section 35 on which a camera grip 60 is mounted in an attachable and detachable manner is provided in an imaging device 30, and a mount section 65 that is mounted on the imaging device 30 in an attachable and detachable manner is provided in the camera grip. The attachment and detachment of the camera grip 60 can be easily performed and manipulability can be improved by providing the mount sections 35 and 65 provided in the imaging device and the camera grip with a bayonet mechanism. Further, a connection cable 75 that connects the imaging device 30 and the camera grip 60 is wound or rewound around the mount section 65 in accordance with the rotational movement of a grip main body section 61 with the mount section 65 as the axis, and the connection cable 75 does not become an obstacle to the switch manipulation of a manipulation section 62 provided in the camera grip 60. The manipulability of an imaging system can be improved.

Abstract: The image-capturing apparatus communicates with an accessory apparatus using a clock/communication request channel and first and second data communication channels. The camera controller switches its communication method between a first communication method in which data communication is performed while a clock signal is alternately switched between first and second levels and a second communication method in which data communication is performed in response to a communication request from the camera controller to the accessory apparatus, which is output by switching a signal level of the clock/communication request channel from the first level to the second level. The camera controller, in response to detecting a communication error in the first and second communication methods, transmits to the accessory apparatus through the second data communication channel a specific signal for restoring the communication while keeping the signal level of the clock/communication request channel at the first level.

Abstract: A lens module includes a circuit board, a hollow mounting bracket, a photosensitive chip, a lens base, and a lens. The photosensitive chip is mounted within the hollow mounting bracket on a surface of the circuit board. The lens base is mounted on a surface of the mounting bracket opposite to the circuit board. The lens base axially defines a through hole. The lens is mounted within the lens base. The lens base includes a screw thread formed along an inner wall of the through hole. The lens includes mating threads formed along a periphery of the lens contacting the inner wall of the through hole. The mating threads define at least one thread slot which defines a gap with the screw threads of the inner wall of the through hole.

Abstract: A camera module, a molded circuit board assembly, a molded photosensitive assembly and manufacturing method thereof are disclosed. The camera module includes a molded base which is integrally formed with a circuit board through a molding process, wherein a photosensitive element may be electrically connected on the circuit board and at least a portion of a non-photosensitive area portion of the photosensitive element is also connected by the molded base through the molding process. A light window is formed in a central portion of the molded base to provide a light path for the photosensitive element, wherein a cross section of the light window is configured to have a trapezoidal or multi-step trapezoidal shape which has a size increasing from bottom to top to facilitate demoulding and avoiding stray lights.

Abstract: There is provided an image capturing apparatus on which, and from which, an accessory is mountable and dismountable by relative rotation in a circumferential direction. The image capturing apparatus includes a plurality of terminals disposed in a circumferential direction of a mount and configured to be used in electrical connection, and a terminal holder. Each of the plurality of terminals is electrically connected to a corresponding terminal of the accessory. A first terminal of the terminals used in communication at a first voltage level and a second terminal of the terminals used in communication at a second voltage level lower than the first voltage level are disposed on the same stage of the terminal holder. The second terminal is a terminal connected to ground via a first resistor. The first terminal is disposed adjacent to the second terminal.

Abstract: An image capturing apparatus on which an accessory including a first mount is mountable includes a second mount. The second mount is configured to allow bayonet coupling to the first mount of the accessory. The second mount includes a plurality of terminals disposed in a circumferential direction, and a terminal holder configured to hold the plurality of terminals. Each of the plurality of terminals is electrically connectable to a terminal of the accessory. The terminal holder has a height level difference in a center-axis direction of the second mount. The plurality of terminals include a first terminal configured to be used to detect mounting of the accessory on the image capturing apparatus. The first terminal is disposed further in a mount direction of the accessory than the other terminals among the plurality of terminals on a first stage of the terminal holder.

Abstract: An image capturing apparatus on which, and from which, an accessory is mountable and dismountable includes a plurality of terminals disposed in a circumferential direction of a mount, and a terminal holder. The terminal holder has a height level difference for holding the terminals at different positions in a center-axis direction of the mount. The terminals include a first terminal configured to be used to supply power for driving an internal component of the accessory, and a second terminal configured to indicate a ground level corresponding to the first terminal. The second terminal is disposed nearer in a mount direction of the accessory than the other terminals on a predetermined stage of the terminal holder, and is connected to a corresponding one of a plurality of terminals of the accessory first among the terminals when the accessory is mounted on the image capturing apparatus.

Abstract: An imaging apparatus, to which an accessory device is detachably mounted, which performs image capturing in synchronization with a vertical synchronization signal, and which performs communication with the accessory device in synchronization with the vertical synchronization signal, transmits, to the accessory device, a request command for requesting transmission of data from the accessory device to the imaging apparatus to cause the accessory device to transmit data corresponding to request command. The imaging apparatus is capable of transmitting, to the accessory device, a plurality of request commands each corresponding to the request command within one period of the vertical synchronization signal, and the request command includes a plurality of types of commands. The imaging apparatus transmits a previously-determined specific request command of the plurality of types of commands at predetermined timing within one period of the vertical synchronization signal.

Abstract: Included are multiple mount claws, and multiple contact pins following the circumferential direction of a second mount. The second mount can rotate to a first state where multiple claws of a first mount are inserted between the multiple mount claws, and a second state where the multiple mount claws engage the claws in a center axis direction. In the first state, a first mount claw is included in an angle range where a first contact pin of the multiple contact pins and a center axis of the mount are connected in the radial direction of the mount, and a first contact face of the multiple contact faces and the center axis are connected in the radial direction of the mount. The first contact pin and the first contact face come into contact first when rotating from the first state to the second state.

Abstract: An imaging apparatus, to which an accessory device is detachably mounted, which performs image capturing in synchronization with a vertical synchronization signal, and which performs communication with the accessory device in synchronization with the vertical synchronization signal, transmits, to the accessory device, a request command for requesting transmission of data from the accessory device to the imaging apparatus to cause the accessory device to transmit data corresponding to request command. The imaging apparatus is capable of transmitting, to the accessory device, a plurality of request commands each corresponding to the request command within one period of the vertical synchronization signal, and the request command includes a plurality of types of commands. The imaging apparatus transmits a previously-determined specific request command of the plurality of types of commands at predetermined timing within one period of the vertical synchronization signal.

Abstract: Disclosed in some examples are auxiliary optical systems for removably attaching to mobile devices, including mobile telephones with onboard cameras, to provide enhanced optical features. Some auxiliary optical systems can be configured to attach to multiple different types and sizes of mobile devices. Some auxiliary optical systems can be configured to attach to a mobile device that includes a protruding onboard camera. For example, in some embodiments, a retainer portion of an auxiliary optical system can comprise a region for receiving the protruding onboard camera in a clearance or friction fit.

Abstract: A system and method for synchronizing a remote lighting device to a camera using a hot shoe connection and an external device connected via the hot shoe connector. The external device receives TTL data and a synchronization signal from the camera via the hot shoe connector. The external device wirelessly communicates using a radio frequency transmitter an exposure compensation value from the external device to a remote lighting device. The external device also wirelessly communicates a synchronization signal and a TTL information to the remote lighting device for use in synchronizing the remote lighting device to image acquisition by the camera.

Abstract: A camera module according to an exemplary embodiment of the present disclosure is proposed, the camera module including a PCB (Printed Circuit Board) mounted with an image sensor, a housing member arranged at an upper surface of the PCB, a bobbin movably positioned at an inner side of the housing member, an upper elastic member connected to an upper surface of the housing member and to an upper surface of the bobbin, and a space forming part formed at one side of the housing member to provide a moving space to the upper elastic member when the bobbin makes a relatively vertical movement to the housing member.

Abstract: An adapter device according to the present disclosure includes: a mount section that is attached to any one of a plurality of main body mount sections included in a main body apparatus; and a user interface a state of which is switched in accordance with whether to which one of the plurality of main body mount sections the mount section has been attached. With this configuration, it is possible to attach to any one of a plurality of main body mount sections included in a main body apparatus, and the state of a user interface can be switched in accordance with whether which one of the main body mount sections has been attached with.

Abstract: A camera includes an image pickup device configured to receive a light flux passing through a photographing lens and to convert the light flux into an electric signal, a display device configured to perform a live-view display on the basis of the electric signal output from the image pickup device, an aperture driving actuator configured to adjust a light amount passing through the photographing lens, and a controller configured to control a stop timing of the live-view display performed before an exposure at the time of a still-image photography on the display device in accordance with an operation condition of the aperture driving actuator at the time of the still-image photography.

Abstract: One embodiment provides a lens driving motor, comprising: a mover including a bobbin for fixing a lens, and magnets disposed on the bobbin; a stator comprising a first coil and a second coil arranged to correspond to the respective magnets, a housing including an upper surface with an open center and a support part having an outer surface on which the first coil is disposed, a base which supports the housing and has a through hole formed in the center thereof to correspond to the lens, and a substrate disposed on an upper surface of the base so as to apply power to the second coil; and a hall sensor disposed at a position facing the magnets so as to sense a phase of the mover.

Abstract: An imaging unit of a camera for recording the surroundings has an image sensor with a lens for the display of the surroundings on the image sensor. The image sensor and the lens are held by a carrier. The camera additionally has a circuit hoard and at least the signal and the supply lines of the image sensor arranged on the carrier. The image sensor is mounted on a carrier substrate, which similar to the lens, is arranged on the carrier at a distance from the circuit board, and has a flexible electrical connection to the circuit board.

Abstract: A telecommunication unit which ensures high reliability of electric connection with a simple structure and enables satisfactory communication between an apparatus main body of an image pickup apparatus and an interchangeable lens. A first electric connecting unit has contact portions that are electrically connected to the interchangeable lens when the interchangeable lens is mounted on the lens adapter. A second electric connecting unit has contact portions that are electrically connected to the apparatus main body when the lens adapter is fixed to the apparatus main body. The contact portions of the first electric connecting unit are arranged in the form of an arc with an optical axis of the interchangeable lens at its center. The contact portions of the second electric connecting unit are arranged in a linear fashion in a width direction of the apparatus main body perpendicular to the optical axis of the interchangeable lens.

Abstract: A modular lens system for use with a camera system and connected therewith. The lens system including modular sections configured to include one or more lenses and/or an aperture. The one or more lenses are controlled by one or more motors to enhance focus, softness, and/or size and other optical characteristics.

Abstract: There is provided a camera that includes a body-side mount. The body-side mount includes a first reference plane, has a first flange back distance from the first reference plane to an imaging plane, and allows an adapter to be mounted on the first reference plane. The adapter includes a second reference plane, and has a second flange back distance from the second reference plane to the imaging plane. The second flange back distance is shorter than the first flange back distance.

Abstract: An autofocus camera is provided which restrains and corrects any tilt that may occur in the optical axis direction without the need of providing any additional new sensors for that purpose. The autofocus camera includes an image sensor for receiving light from an object and converting the light into corresponding electrical signals, a lens driving device having a lens for focusing the light from the object upon said image sensor, and a control portion for causing said lens driving device to adjust any tilt that may occur in the optical axis in response to the electrical signals received from said image sensor. The control portion is operated to cause the lens driving device to adjust any tilts of the optical axis with respect to the image sensor in the orthogonal directions with each other, so that the resolution signals at the predetermined positions of said image sensor can be maximized.

Abstract: A camera module includes a coil member, a magnet member, and a sensor member. The coil member is positioned on a first surface of a fixed unit. The magnet member is positioned on a movable unit and facing the coil member. The sensor member is positioned on a second surface of the fixed unit and configured to sense a position of the movable unit.

Abstract: A telecommunication unit which ensures high reliability of electric connection with a simple structure and enables satisfactory communication between an apparatus main body of an image pickup apparatus and an interchangeable lens. A first electric connecting unit has contact portions that are electrically connected to the interchangeable lens when the interchangeable lens is mounted on the lens adapter. A second electric connecting unit has contact portions that are electrically connected to the apparatus main body when the lens adapter is fixed to the apparatus main body. The contact portions of the first electric connecting unit are arranged in the form of an arc with an optical axis of the interchangeable lens at its center. The contact portions of the second electric connecting unit are arranged in a linear fashion in a width direction of the apparatus main body perpendicular to the optical axis of the interchangeable lens.

Abstract: A Dual-Side Illumination (DSI) image sensor chip includes a first image sensor chip configured to sense light from a first direction, and a second image sensor chip aligned to, and bonded to, the first image sensor chip. The second image sensor chip is configured to sense light from a second direction opposite the first direction.

Abstract: A lens module includes a lens barrel, and a lens group received by the lens barrel. The lens barrel includes an first supporter, a second supporter extending vertically from the first supporter, and a receiving space formed by those supporters, the first supporter having a light aperture, the second supporter having an inner surface facing the receiving space. The lens group includes a first lens abutting against the inner surface of the second supporter, a second lens stacked on the first lens and abutting against the inner surface of the second supporter, a third lens stacked on the second lens and abutting against the inner surface of the second supporter, and a fourth lens stacked on the third lens and abutting against the inner surface of the second supporter, for ensuring the concentricity among the lenses and keeping the lens group coaxial with the lens barrel.

Abstract: An adapter includes: a first mount section that is detachably attached to a camera body; a second mount section that is provided separately from the first mount section and is detachably attached to an interchangeable lens; and a power supply section that generates supply voltages of a third power supply system and a fourth power supply system, which are to be fed to the interchangeable lens mounted on the second mount section, from a second power supply system between a first power supply system of the camera body, which is mounted on the first mount section, and the second power supply system which is different from the first power supply system.