MOVABLE FLEX SWITCH FOR CAMERAS WITH MOVABLE IMAGE SENSORS
Flexible circuits with planar segments and bends enable efficient signal transmission in cameras with movable image sensors, addressing the challenge of sensor movement without increasing the camera's size, supporting autofocus and optical image stabilization.
Patent Information
- Application Number
- DE102022208572
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2022-05-11
- Filing Date
- 2022-08-18
- Publication Date
- 2026-03-05
- Estimated Expiration
- 2042-08-18
AI Technical Summary
Cameras with movable image sensors face challenges in efficiently communicating image data and signals due to the movement of the image sensor, which complicates signal tracking and requires flexible circuits that can accommodate this movement without increasing the camera's footprint.
The use of flexible circuits with multiple planar segments connected by bends, fixed relative to the image sensor, allows for twisting to accommodate the sensor's movement, maintaining a minimal impact on the camera's size and enabling effective signal transmission.
The flexible circuits effectively manage the movement of the image sensor, ensuring seamless signal communication while maintaining a compact camera design, suitable for autofocus and optical image stabilization.
Smart Images

Figure 00000000_0000_ABST
Abstract
Description
AREA
[0001] The described embodiments generally refer to flexible circuits that detect the movement of an image sensor within a camera. BACKGROUND
[0002] Cameras remain a key feature of consumer electronics devices such as smartphones, tablets, and computers. Space is at a premium in these devices, and there is a need for cameras that deliver high-quality imaging in a small form factor. Some cameras can be configured to move a camera image sensor relative to other camera components (such as a lens and / or housing) to provide autofocus and / or image stabilization capabilities. These cameras require the ability to communicate image data and other signals from the image sensor to other device components. A moving image sensor can complicate this communication, as the component carrying the signals from the image sensor ideally needs to be able to track this movement.
[0003] Publication CN 1 12 886 788 A discloses a voice coil motor, a camera and electronic devices.
[0004] Publication US 2020 / 0120277A1 discloses a power supply device for an image sensor, as well as a camera device and an electronic device, both of which contain such a power supply device.
[0005] Document US 2014 / 0 307 114 A1 reveals a camera module. SUMMARY
[0006] The invention is defined in the independent claims. Advantageous embodiments are defined in the dependent claims. Herein, cameras with movable image sensors and flex circuits that can be used with these cameras are described. In general, the flex circuit can comprise a plurality of planar segments connected by one or more bends. The flex circuit can be fixed with respect to the image sensor and can be positioned within the camera such that a movement of the image sensor along a first direction causes a twisting in one or more of the plurality of segments.
[0007] Some embodiments may include a camera comprising a lens, an image sensor positioned to receive light through the lens, and an actuator arrangement configured to move the image sensor along a first direction within the camera. The camera may further include a flex circuit, wherein the flex circuit comprises a first end, a second end, and a plurality of planar segments, comprising a first segment connected to a second segment via a first bend, and a third segment connected to the second segment via a second bend.The multitude of planar segments can connect the first end to the second end, the first end can be fixed relative to the image sensor and movable relative to the second end when the image sensor moves along the first direction, and the flex circuit can be positioned so that the first segment rotates when the image sensor moves along the first direction.
[0008] In some variants, the first segment is oriented such that a normal vector of the first segment is perpendicular to the first direction, and the third segment is oriented such that a normal vector of the third segment is perpendicular to the first direction. In some of these variants, the first segment is parallel to the third segment. In some variants, the second segment is oriented such that a normal vector of the second segment is parallel to the first direction. In other variants, the second segment is oriented such that a normal vector of the second segment is perpendicular to the first direction.
[0009] In some variants, the flexible circuit further comprises a fourth segment, which is connected to the first segment at a third bend. The fourth segment may also be connected to the first end at a fourth bend. The third segment is connected to the second end at a fifth bend. In some variants where the flexible circuit comprises a fourth segment, it further comprises a fifth segment, which is connected to the third segment at a fourth bend.
[0010] The camera can be configured such that the first direction is parallel to an optical axis of the camera. The camera can comprise a sensor carrier fixed relative to the image sensor and a lens holder connected to the lens, with the second segment positioned between the sensor carrier and the lens holder. In other variations, the camera can comprise a sensor carrier fixed relative to the image sensor and a lens holder connected to the lens, with the sensor carrier positioned between the second segment and the lens holder.
[0011] Other embodiments may include a camera comprising a lens, an image sensor positioned to receive light through the lens, and an actuator arrangement configured to move the image sensor along a first direction within the camera, and a flex circuit comprising a plurality of planar segments connected by one or more bends. The flex circuit may be connected to and positioned with respect to the image sensor such that at least the plurality of planar segments rotate during movement of the image sensor along the first direction.
[0012] In some of these variants, at least one of the multitude of planar segments comprises a first segment, wherein a length of the first segment is oriented perpendicular to the first direction and a width of the first segment is oriented parallel to the first direction, and wherein the first segment rotates by its length as the image sensor moves along the first direction. The flex circuit may include a first end that is fixed with respect to the image sensor, with the first segment connected to the first end at a first bend. In some variants, the first direction is parallel to an optical axis of the camera.
[0013] Another embodiment describes an arrangement comprising an image sensor having an optical axis, and a flexible circuit comprising a first end fixed with respect to the image sensor, a second end, and a plurality of planar segments connecting the first end to the second end, comprising a first segment, a second segment, and a third segment. The first segment may be connected to the second segment at a first bend, and the second segment is connected to the third segment at a third bend. The first segment may be oriented such that a normal vector of the first segment is perpendicular to the optical axis of the image sensor, and the third segment may be oriented such that a normal vector of the third segment is perpendicular to the optical axis of the image sensor. In some of these variants, a first segment is parallel to the third segment.In some variants, the second segment is oriented such that a normal vector of the second segment is parallel to the optical axis of the image sensor. In other variants, the second segment is oriented such that a normal vector of the second segment is perpendicular to the optical axis of the image sensor.
[0014] In addition to the exemplary aspects and embodiments described above, further aspects and embodiments will become apparent with reference to the drawings and by studying the following description. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The revelation is easily understood through the following detailed description in conjunction with the accompanying drawings, where identical reference numbers denote identical structural elements, and in which: Fig. Figure 1A shows a perspective view of an exemplary camera with a movable image sensor and a flex circuit. Fig. 1B a schematic block diagram of exemplary camera components from Fig. 1A shows; Fig. 2A and Fig. 2B shows an expanded view or a cross-sectional side view of an exemplary camera that includes a flex circuit and an image sensor that is movable along an optical axis of the camera; Fig. 3A and Fig. 3B shows perspective views of a flex circuit for use with the cameras described here; Fig. 4A and Fig. 4B Cross-sectional views of variants of a first flex circuit or a second flex circuit are shown; Fig. 5A and Fig. 5B show a perspective front view or a perspective rear view of a flex circuit, showing a reinforcing layer; Fig. Figure 6A shows a perspective view of a variant of a flexible circuit for use with the cameras described here. Fig. 6B and Fig. 6C Top views of two configurations of this show how the flex circuit of Fig. 6A into the illustrative version of camera from Fig. 2A and Fig. 2B can be integrated; Fig. Figure 7A shows a perspective view of a variant of a flexible circuit for use with the cameras described here. Fig. Figure 7B shows a top view of how the flex circuit of Fig. 7A with the illustrative variant of camera from Fig. 2A and Fig. 2B can be used; Fig. Figure 8A shows a perspective view of a variant of a flexible circuit for use with the cameras described here. Fig. Figure 8B shows a top view of how the flex circuit of Fig. 8A with the illustrative version of camera from Fig. 2A and Fig. 2B can be used; Fig. Figure 9A shows a perspective view of a variant of a flexible circuit for use with the cameras described here. Fig. Figure 9B shows a top view of how the flex circuit of Fig. 9A with the illustrative variant of camera from Fig. 2A and Fig. 2B can be used.
[0016] The use of hatching or shading in the accompanying figures is generally provided to clarify the boundaries between adjacent elements and also to improve the legibility of the figures. Therefore, neither the presence nor the absence of hatching or shading is intended to suggest or indicate a preference or requirement for any particular materials, material properties, element proportions, element dimensions, similarities between similarly depicted elements, or any other characteristics, attributes, or properties of any element depicted in the accompanying figures.
[0017] Additionally, it should be understood that the (either relative or absolute) proportions and dimensions of the various features and elements (and their aggregations and groupings), as well as the boundaries, separations, and positional relationships shown in the accompanying illustrations, are provided solely to facilitate understanding of the various embodiments described herein and are therefore not necessarily shown or depicted to scale and do not indicate any preference or requirement for any embodiment shown, excluding embodiments described with reference thereto.
[0018] Directional terminology, such as "top," "bottom," "upper," "lower," "front," "back," "over," "under," "above," "below," "left," "right," "vertical," "horizontal," etc., is used with reference to the orientation of some of the components in some of the figures described below and is not intended to be restrictive. Since components of different embodiments may be positioned in a number of different orientations, directional terminology is used for illustrative purposes only and is in no way restrictive. The directional terminology is to be interpreted broadly and should therefore not be construed as excluding different component orientations.As used herein, the phrase "at least one of," when preceded by a list of elements with the expression "and" or "or" to separate any one of the elements, modifies the list as a whole, not each individual element. The phrase "at least one of" does not require the selection of at least one of each listed element; rather, the phrase allows for a meaning that includes at least one of any one of the elements and / or at least one of any combination of the elements and / or at least one of each of the elements. For example, the phrases "at least one of A, B, and C" or "at least one of A, B, or C" each refer to only A, only B, or only C; any combination of A, B, and C; and / or one or more of each of A, B, and C.Likewise, it should be noted that any order of elements presented for a conjunctive or disjunctive list provided herein should not be interpreted as limiting the disclosure to only that provided order. DETAILED DESCRIPTION
[0019] Reference is now made in detail to representative embodiments, which are illustrated in the accompanying drawings. It should be understood that the following description is not intended to limit the embodiments to a preferred embodiment. On the contrary, it is intended to cover alternatives, modifications, and equivalents that may be included within the spirit and scope of protection of the described embodiments as defined by the attached claims.
[0020] This text describes flex circuits that can be used in a camera with a movable image sensor. Generally, the flex circuit can comprise a multitude of planar segments connected by one or more bends. The flex circuit can be fixed relative to the image sensor and can be positioned within the camera such that movement of the image sensor along a first direction causes a twist in one or more of the multitude of segments. This twisting allows the flex circuit to accommodate the movement of the image sensor along the first direction while having a negligible impact on the camera's footprint.
[0021] The flexible circuits described here can be used in any suitable camera having a movable image sensor. Fig. 1A and Fig. Figure 1B shows a perspective view and a schematic block diagram of a camera 100 that can utilize a flex circuit 102, as described herein. As shown there, the camera can comprise the flex circuit 102, an image sensor 104, a lens 106, an actuator assembly 108, and a housing 110. The housing 110 can be configured to at least partially enclose the various components of the camera 100, and in some variants, it can serve to shield internal camera components from electromagnetic interference (as well as to shield other components or devices outside the housing from electromagnetic interference originating within the camera). The lens 106 comprises one or more lens elements 116 configured to direct light received by the camera to the image sensor 104. The lens 106 can further comprise a lens tube 118 housing some or all of the lens elements.In some cases, the camera 100 may be configured to have a folded optics arrangement, wherein the camera 100 further comprises one or more mirrors or prisms to redirect the light captured by the camera. It should be noted that in a folded optics arrangement, the optical axis of the lens 106 and the camera 100 may extend along several directions (i.e., a light folding element, such as prisms or mirrors, may change the direction of the optical axis). For the purposes of this application, the optical axis of a camera is considered to be the segment of the optical axis of a lens, since light exits the lens to an image sensor. Additionally, for the purposes of this application, the optical axis of an image sensor is considered to be a normal vector to the plane of the image sensor, which is usually parallel to the optical axis of a lens, since light exits the lens to the image sensor.
[0022] The image sensor 104 can receive light through the lens 106 and can generate one or more signals that transmit information about the light received during imaging (transmitted by the image sensor 104 using flex circuit 102). The image sensor can be any suitable sensor, such as a CCD, CMOS sensor, or the like. As mentioned above, the image sensor 104 can be configured to move within the camera (e.g., relative to at least the housing 110). For example, the image sensor 104 can be moved relative to the lens 106 along the optical axis of the camera 100 to adjust the camera's focus, thus enabling the camera 100 to provide autofocus capabilities.Additionally or alternatively, the image sensor 104 can be moved in one or more directions perpendicular to the optical axis of the camera 100 with respect to the lens, which may allow the camera 100 to provide optical image stabilization capabilities.
[0023] It should be noted that the described cameras can be configured to perform both autofocus and optical image stabilization, or they can be configured to perform only one of these operations. Furthermore, in some cases, the camera 100 can also be configured to adjust the position or optical power of the lens 106 to assist the autofocus and / or optical image stabilization operations. This can be achieved by moving one or more lens elements of the lens 106 relative to the image sensor 104. Additionally or alternatively, the lens 106 can include a variable-focus lens element (e.g., a liquid lens) that can be actuated to adjust the optical power and / or the optical axis of the lens element.
[0024] Autofocus and optical image stabilization operations can be performed by any suitable combination of movement of image sensor 104 and adjustments of lens 106. As a few non-limiting examples, U.S. patent applications Publication No. US 2019 / 0 141 248 A1 and US 2021 / 0 080 807 A1, the contents of which are incorporated herein by reference in their entirety, describe (i) a camera that moves an image sensor perpendicular to an optical axis of the camera (for optical image stabilization) and that moves a lens along an optical axis (for autofocus), and (ii) a camera that moves the image sensor in three dimensions (for both autofocus and image stabilization). For the purposes of this application, it is assumed that the image sensor 104 is movable within the camera along at least one direction.
[0025] Returning to Fig. 1. The camera may further comprise an actuator assembly 108 configured to move the image sensor within the camera 100. The actuator assembly 108 typically comprises an actuator 112 and a suspension assembly 114. The actuator 112 is configured to generate the forces necessary to move the image sensor and may comprise a voice coil motor, a comb drive, or the like. In embodiments where the actuator 112 comprises a voice coil motor, the voice coil motor may include a magnet and a coil, one of which may be fixed relative to the image sensor 104 (either by a direct connection to the image sensor or by an indirect connection via one or more intervening components), and the other of which may be fixed within the camera in a manner that allows the image sensor 104 to move relative to it.The coil can be positioned within the magnetic field of the magnet such that, when current is driven through the coil, a Lorentz force is generated, which can create a movement between the coil and the magnet relative to each other, which in turn can move the image sensor within the camera. It should be noted that some embodiments may include an actuator 112 with a variety of voice coil motors, each of which can be used to generate Lorentz forces, as discussed above. U.S. Patent Publication No. US 2019 / 0141248A1, previously incorporated by reference, describes a non-limiting example of an actuator that uses voice coil motors to move an image sensor within a camera.
[0026] The suspension assembly 114 can be configured to suspend the image sensor 104 (as well as one or more other associated components) within the camera 100 and can allow the image sensor 104 to move within the camera 100 in one or more directions. As a few non-limiting examples, the suspension assembly 114 can include one or more suspension elements, such as bends (e.g., leaf spring(s), suspension wire(s), bending arm(s), or the like) and / or one or more bearings (e.g., ball bearings, roller bearings, or the like). In cases where the suspension assembly 114 includes one or more bends, the bends can provide a movable connection between the image sensor (for example, via a support structure that carries the image sensor) and one or more additional structures within the camera.In cases where the suspension arrangement 114 includes one or more bearings, the bearings can be positioned between the moving image sensor 104 (e.g. via a support structure that carries the image sensor) and one or more additional structures in the camera, and can guide image sensor movement.
[0027] Fig. 2A and Fig. Figure 2B shows an expanded perspective view or a cross-sectional side view of an exemplary camera 200, which can use the flex circuits described here. As shown there, camera 200 can have a flex circuit 202, an image sensor 204, and a lens 206, comprising a lens tube 208 and a lens element 210 (a single lens element 210 is in Fig. 2A shown, but it should be noted that lens 206 may comprise a variety of lens elements, each of which, as above, has the following characteristics: Fig. 1A and Fig. The camera 200 can be configured as described in 1B. The camera 200 can further comprise a housing 212 (which can be made from a variety of housing elements), a lens holder 214 that can hold the lens 206 in relation to the rest of the camera 200, a sensor carrier 216 that can be fixed in relation to the image sensor 204, and an actuator assembly 218.
[0028] These in Fig. 2A and Fig. The embodiment of camera 200 shown in Figure 2B can be configured to move the image sensor 204 only along an optical axis 220 of camera 200 (e.g., to provide autofocus capabilities), although it should be noted that different embodiments of the cameras described herein can be configured to move the image sensor 204 along multiple directions. In particular, the actuator assembly 218 can be configured to move the sensor carrier 216 relative to the lens holder 214 along a first direction (e.g., the optical axis 220). The sensor carrier 216 is fixed relative to the image sensor 204, so that a movement of the sensor carrier 216 along the optical axis 220 also moves the image sensor 204 along the optical axis 220. The sensor carrier 216 can be directly connected to the image sensor 204 or can be indirectly connected to the image sensor 204 via one or more intermediary components (e.g.,via a substrate 222, which can be connected to both the image sensor 104 and the sensor carrier 216. The sensor carrier 216 can further be fixed with respect to a first end of the flex circuit 202 (via a direct connection and / or an indirect connection via one or more intermediate components, such as the substrate 222), such that a movement of the sensor carrier 216 also moves the first end of the flex circuit 202.
[0029] In the Fig. 2A and Fig. In the variant of camera 200 shown in Figure 2B, the actuator assembly 218 can comprise a voice coil motor 224, which includes coil 226 and magnet 228, and a suspension assembly 230, comprising ball bearings 232 (whereby the actuator assembly 218 can include any combination of the actuators and suspension elements described above). As shown there, the lens holder 214 can hold coil 226, and the sensor carrier 216 can hold magnet 228, and current can be driven through the coil 226 to control movement between the coil 226 and the magnet 228 along the optical axis 220 (thereby controlling movement of the sensor carrier 216 and the image sensor 104 along the optical axis 220). In other embodiments, the sensor carrier 216 can hold the coil 226, while the lens holder 214 can hold the magnet 228. In some of these variants, the Flex Circuit 202 can be configured to receive one or more signals (e.g.to carry power and / or control signals) which can be used to control the current through the coil 226 (e.g. via a driver (not shown) which can be carried by the sensor carrier 216).
[0030] Ball bearings 232 can be positioned between the respective surfaces of the lens holder 214 and the sensor carrier 216, and thus be in contact with each other. The ball bearings 232 can allow the sensor carrier 216 to slide relative to the lens holder 214 and can also limit the movement of the sensor carrier 216 so that the sensor carrier moves in only one direction (e.g., along the optical axis 220). Although in Fig. 2A and Fig. 2B shown as having ball bearing 232, it should be noted that the suspension arrangement 230 may include any suitable bending elements (or combination of bending elements) such as those described above.
[0031] While lens holder 214 in Fig. 2A and Fig. Figure 2B shows a single structure holding lens 206, magnet 228, and in contact with ball bearings 232. It should be noted that the functions do not need to be performed by a multitude of individual structures. For example, lens holder 214 can instead be divided into several separate components, each performing a different function (or combination of functions).
[0032] In some variants, camera 200 may include an end stop 234. Generally, an end stop is a structure configured to restrict the movement of a component within camera 200 (which can prevent a component from coming into contact with or otherwise interacting with other structures within the camera). In some cases, an end stop may be a separate insert placed within camera 200 to act as an end stop (such as one in Fig. 2A and Fig. 2B (end stop 234) is provided, while in other cases a camera component can serve as an end stop for another camera component (as described in more detail below). It should be noted that the camera 200 can include multiple end stops for a given camera component (e.g., a flex circuit), each configured to restrict that component's movement in a given direction. Likewise, a given end stop can serve as an end stop for a multitude of components.
[0033] For example, the one in Fig. 2A and Fig. The end stop 234 shown in Figure 2B can be configured to restrict downward movement (i.e., movement away from the lens 206) of the flex circuit 202. Specifically, the end stop 234 can be positioned between a section of the flex circuit 202 and the housing 212. Movement of the section of the flex circuit 202 that is in Fig. As shown in 2B, this ultimately causes the flexible circuit 202 to come into contact with the end stop 234, which can prevent (or otherwise restrict) further movement of the flexible circuit 202 in that direction. Optionally, the end stop 234 can be, as shown in Fig. 2A and Fig. Figure 2B shows that the sensor carrier 216 can be configured to serve as an end stop. As shown there, the end stop 234 can be positioned between the sensor carrier 216 and the housing 212 in one or more directions perpendicular to the optical axis 220 (the embodiment of the end stop 234 is shown in Figure 2B). Fig. 2A and Fig. 2B shown, in which it is positioned in several directions between sensor carrier 216 and housing 212), so that a movement in any of these directions will eventually cause the sensor carrier 216 to touch the end stop 234 (and prevent or otherwise restrict further movement of the sensor carrier 216).
[0034] In general, it may be preferable that the flex circuit 202 does not contact any end stop during normal operation of the device, so that these end stops restrict unintended movement of the flex circuit 202 during unexpected events (e.g., impact events that may occur if the camera is dropped or otherwise experiences significant movement not expected from normal device use). For example, the camera 200 and the actuator assembly 218 may be capable of moving the sensor carrier 216 (and the image sensor 204) through a predetermined range of positions (an “operating range”) during operation of the camera 200. In the absence of external forces, movement of the sensor carrier 216 beyond the operating range does not cause the flex circuit 202 to contact the end stop(s).However, in the event of an impact, additional forces exerted on the camera can cause additional movement of the flex circuit 202 inside the camera, and the end stop(s) can limit this additional movement.
[0035] As mentioned above, the flex circuits described here can be configured to connect a moving image sensor. The flex circuit can be fixed relative to the image sensor and can be positioned within the camera such that movement of the image sensor along a first direction causes a torsional load (i.e., twisting around one of its segments and twisting in one or more of its multiple segments). This twisting can allow the flex circuit to accommodate the movement of the image sensor along the first direction while having a minimal impact on the overall size of the camera.For example, in variants where the first direction is parallel to the optical axis of the camera, some of the flex circuits described below may not require any additional clearance (or camera growth) along the optical axis, which can be particularly advantageous when a camera is fitted into a thin device where space along the optical axis is especially limited.
[0036] In general, the flex circuits described herein can be manufactured from a flexible printed circuit board (PCB) and can be formed in a flat plate that can be folded to create the various shapes shown in the following embodiments. A fold of the flex circuit can form a bend that serves as an interface between two adjacent planar segments of the flex circuit (each having a different planar orientation). Accordingly, a plurality of bends can be formed in the flex circuit to create a plurality of planar segments, such as those described in this application, each bend forming the boundary between adjacent planar segments. Additionally, the flex circuit can include one or more turns, which, for the purposes of this application, refer to a change of direction within the plane of the flex circuit.In other words, coils are positioned within a segment, while bends are positioned between different segments. The bends and coils help define the shape and position of the various segments of the flex circuit, and in turn determine the overall shape of the flex circuit.
[0037] Fig. 3A and Fig. Figure 3B shows perspective views of a flex circuit 300 for use with the cameras described herein. As shown there, the flex circuit 300 comprises a first end 302, a second end 304, and a plurality of planar segments connecting the first end 302 to the second end 304. As shown there, the plurality of planar segments can comprise a first segment 306, a second segment 308, and a third segment 310. The first segment 306 can be connected to the second segment 308 at a first bend 312, while the second segment 308 can be connected to the third segment 310 at a second bend 314. Also in Fig. 3A and Fig. Figure 3B shows electrical connection fields 320 at the first end 302 (which may allow the image sensor to make electrical connections to the flex circuit 300, either via a direct connection to the image sensor or via a direct connection to a component, such as a substrate, that is electrically connected to the image sensor) and optional reinforcement layers 316, which are described in more detail below.
[0038] It should be noted that the first end 302 and the second end 304 (and the first and second ends of the various embodiments of the flex circuits described herein) can each be formed as a respective planar segment, each of which can be connected to the plurality of planar segments at a corresponding bend. The planar segment corresponding to the first end 302 can be used to connect the first end 302 to an image sensor (and can be positioned such that a normal vector of that planar segment corresponds to a normal vector of the image sensor). Likewise, the planar segment corresponding to the second end 304 can be used to connect the second end 304 to another camera component (e.g., the camera housing or some other structure housed therein).It should also be noted that the second end 304 of the flex circuit 300 is intended to include the section of the flex circuit 300 that is fixed with respect to the camera (or a component therein) to provide a fixed point with respect to the moving first end 302 of the flex circuit 300. In all variants of the flex circuits described here, the second ends of those flex circuits may extend beyond what is shown there and may include additional turns and / or bends (e.g., after the flex circuit leaves the camera). While three segments (first segment 306, second segment 308, and third segment 310) have been discussed above, it should be noted that the flex circuits described here may optionally include more than three segments between the first end and the second end of the flex circuit, as described in more detail below. In fact, the flex circuit 300 is in . Fig. 3A and Fig. 3B is shown as having additional planar segments 326 and bends 328 both between the first segment 306 and the first end 302 and between the third segment 310 and the second end 304.
[0039] If the camera is configured to capture an image sensor (not shown) along a first direction (in Fig. 3A and Fig. To move 3B (shown as arrow 318), at least the first segment 306 and the third segment 310 can be vertically aligned such that the normal vector of the segment is perpendicular to the first direction 318. Preferably, the first segment 306 and the third segment 310 are also parallel to each other. While the second segment 308 can also be moved in Fig. 3A and Fig. While segment 3B is shown as vertically oriented with respect to the first direction 318, in some variants the second segment 308 may be horizontally oriented with respect to the first direction 318, such that the normal vector of the second segment 308 is parallel to the first direction 318. It should be noted that when the flex circuit segments described here are characterized as having a particular orientation, it is assumed that the flex circuit is in a neutral position (i.e., stationary), and that the orientation of certain sections may temporarily change during movement of the image sensor away from the neutral position.
[0040] When the image sensor (not shown) is moved along the first direction 318, the first end 302 (which may be fixed relative to the image sensor) moves away from the second end 304 (which may be fixed relative to a camera housing), as shown in Fig. 3B is shown. This in turn can cause the first segment 306 and / or the third segment 310 to be subjected to torsional stress (both the first segment 306 and the third segment 310 are in Fig. 3B as shown in a twisting position), and this twisting can accommodate the movement between the first end 302 and the second end 304 relative to each other (and thus the movement between the image sensor and the camera body relative to each other) with a relatively low overall resistance to movement. The second segment 308 can rotate (e.g., about a first axis 322 perpendicular to the first direction shown in the Fig. In the variant shown in 3B, the first segment 306 is also normal to the second segment 308) and serves as a lever arm to allow rotation in the first segment 306 and the third segment 310. In some cases, depending on the flex circuit design and the amount of movement along the first direction, the first segment 306 and / or the third segment 310 can each rotate about a respective axis that is perpendicular to the first direction 318 and the first axis 322 (e.g., a parallel to the second axis 324, which is shown in Fig. 3B is shown). It should be noted that the in Fig. The deformation shown in Figure 3B is exaggerated for illustrative purposes, and depending on the design of the camera, the movement between the first end 302 and the second end 304 in relation to each other along the first direction during normal operation may be small in relation to the height of the flex circuit in the first direction.
[0041] In general, the stiffness of different regions of the flex circuit can depend on the dimensions of the various planar segments of the flex circuit, as well as the thickness (and choice of materials) of the flex circuit. For example, it may be desirable for at least the first segment 306 and the third segment 310 to have relatively high aspect ratios, where one dimension is longer than the other. These segments can be positioned such that the length (i.e., the longer dimension) of each segment is oriented perpendicular to the first direction 318, and the width (i.e., the shorter dimension) is oriented parallel to the first direction 318. This can promote twisting around the length of the segment, which in turn can reduce the amount of force required to move the image sensor along the first direction.Additionally, a longer length of the flex circuit 300 between the first end 302 and the second end 304 can also reduce the force required to move the image sensor along the first direction.
[0042] The choice of materials and layer thicknesses of the flex circuit stack can also influence the stiffness of the flex circuit. Fig. 4A and Fig. Figure 4B shows cross-sectional views of variants of a first flexible circuit 400 and a second flexible circuit 402. As in Fig. As shown in Figure 4A, the first flexible circuit 400 can comprise a base layer 404, one or more electrical conductors 406 (which can be used to transmit signals to and from an image sensor), an adhesive layer 408, and a top layer 410. The base layer 404, the adhesive layer 408, and the top layer 410 together serve to insulate the electrical conductors 406. These layers can be made of any suitable materials known in the field of flexible printed circuit board manufacturing. As a non-limiting example, the base layer 404 can be made of a dielectric material, such as polyimide or polyester; the electrical conductors 406 can be made of a conductive material, such as copper; and the top layer can also be made of a dielectric material.The adhesive layer 408 can be made of any adhesive suitable for bonding the base layer 404 to the top layer 410. It should be noted that the first flex circuit 400 need not contain both an adhesive layer 408 and a top layer 410, but may instead comprise a single material coated over the electrical conductors 406 and the base layer 404 (e.g., a dielectric coating layer, such as a photosensitive liquid polyimide layer). The second flex circuit 402 is in . Fig. 4B is shown and can include the same layers as the first flex circuit 400 (which are marked the same), but further comprise a shielding layer 412, which may be made of a material (e.g., silver, copper) capable of shielding the electrical conductors 406 from electromagnetic interference. While the flex circuits in Fig. 4A is shown to have a single layer of electrical conductors 406, it should be noted that the flex circuit can comprise several layers of electrical conductors 406, each of which can be separated from other layers of electrical conductors 406 by one or more additional layers (e.g. a dielectric layer).
[0043] In some variants, the flex circuits described here can include one or more additional reinforcing layers that locally increase the stiffness of a region of the flex circuit. The reinforcing layers can locally increase the thickness (and thus the stiffness) and can be made of any suitable material(s) (e.g., a plastic, a metal alloy, or the like). For example, in the variant of Flex Circuit 300, which is described in Fig. 3A and Fig. As shown in Figure 3B, the flex circuit 300 includes a reinforcing layer 316 attached to the first end 302. When an image sensor (not shown) is fixed with respect to the first end 302, the image sensor can at least partially overlap the reinforcing layer 316. The reinforcing layer 316 can, in turn, provide additional structural support to the image sensor.
[0044] Additionally or alternatively, the flex circuit can include one or more reinforcing layers 316 positioned at some or all bends in the flex circuit. For example, in the Fig. 3A and Fig. In the variant of the flex circuit 300 shown in Figure 3B, the flex circuit 300 comprises a reinforcing layer 316 at each of the first bend 312 and at the second bend 314. Placing a reinforcing layer 316 at a given bend can reduce the concentration of stresses that may occur in that bend during twisting of an adjacent segment of the flex circuit (or any other movement occurring near that bend).
[0045] Additionally, in some variants, a reinforcing layer can extend beyond an edge of the remaining layers of the flex circuit. For example, show Fig. 5A and Fig. Figure 5B shows a perspective front view and a perspective rear view of a flex circuit 500, showing a reinforcing layer 502 at a bend 504. As shown there, the reinforcing layer 502 can extend beyond the edge of the remainder of the flex circuit 500, so that a portion of the reinforcing layer 502 does not overlap with other layers of the flex circuit 500. In variants where the flex circuit can contact one or more end stops (e.g., during a drop event, as described above), the reinforcing layer 502 can contact the end stop and act as a bumper, which in turn can reduce the probability of the remaining layers of the flex circuit being damaged.For example, if the reinforcing layer 502 extends beyond the remaining layers of the flex circuit 500 in a first direction, a movement of the flex circuit 500 in the first direction can cause the reinforcing layer 502 to first touch an end stop (not shown). In fact, a flex circuit and a camera can preferably be configured such that any contact between the flex circuit and the end stops occurs between the reinforcing layer(s) and the respective end stop(s).
[0046] While the flex circuits described above are characterized as having a first, second, and third segment, it should be noted that the flex circuits described here can have more than three plane segments. For example, shows Fig. Figure 6A shows a variant of a flex circuit 600 having at least five segments connecting a first end to a second end of the flex circuit 600. As shown therein, the flex circuit 600 can comprise a first end 602 (which may be fixed with respect to an image sensor), a second end 604 (which may be fixed with respect to another component of the camera), and a plurality of segments comprising a first segment 606, a second segment 608, and a third segment 610. The plurality of segments can connect the first end 602 to the second end 604. The first segment 606 can be connected to the second segment 608 at a first bend 612, while the second segment 608 can be connected to the third segment 610 at a second bend 614.As shown there, the first segment 606, the second segment 608, and the third segment 610 can each be vertically oriented such that the normal vector of each respective segment is perpendicular to a common direction (e.g., perpendicular to the optical axis of the camera at the image sensor). Preferably, the first segment 606 and the third segment 610 are also parallel to each other. The first segment 606 and the third segment 610 can rotate, with the second segment 608 acting as a lever arm, as the first end 602 moves away from the second end 604 along a first direction 628, as above with respect to flex circuit 300. Fig. 3A and Fig. 3B is described. In addition, the flex circuit 600 can comprise one or more reinforcing layers 634, which can be positioned at any suitable parts of the flex circuit 600, as described in more detail above.
[0047] As in Fig. As shown in Figure 6A, the flex circuit 600 can further comprise a fourth segment 616 and a fifth segment 620. The fourth segment 616 can be connected to the first segment 606 at a third bend 618 and can further be connected to the first end 602 at a fourth bend 622. The fifth segment 620 can be connected to the third segment 610 at a fifth bend 624 and can further be connected to the second end 604 at a sixth bend 626. In some variants, the fourth segment can be a turn (e.g., a first in Fig. The fifth segment 620 (turn 630 shown in Figure 6A) can comprise a turn between the third bend 618 and the fourth bend 622, such that the third bend 618 and the fourth bend 622 bend around different (e.g., perpendicular) axes. Additionally or alternatively, the fifth segment 620 can comprise a turn (e.g., a second turn in the third bend 618). Fig. 6A (turn 632 shown) between the fifth bend 624 and the sixth bend 626, such that the fifth bend 624 and the sixth bend 626 bend around different (e.g. perpendicular) axes.
[0048] In the Fig. In the variant shown in 6A, the fourth segment 616 and the fifth segment 620 can be vertically aligned, such that the normal vector of each respective segment is perpendicular to the first direction 628. The fourth segment 616 and the fifth segment 620 can be parallel to each other and can furthermore be combined in a common plane (although it should be noted that the fourth segment 616 and the fifth segment 620 can be positioned in different planes).
[0049] In some variants, the fourth segment 616 and the fifth segment 620 can each be designed to have sufficient rigidity such that at least one section of the fourth segment 616 is fixed in position relative to the first end 602, and at least one section of the fifth segment 620 is fixed in position relative to the second end 604 for movement of the flex circuit over the operating range of the actuator arrangement. By serving as a fixed extension of the first end 602 and the second end 604, respectively, the fourth segment 616 and the fifth segment 620 can promote twisting of the first segment 606 and the third segment 610.
[0050] Fig. 6B and Fig. Figure 6C shows top views of two configurations demonstrating how the Flex Circuit 600 can be integrated into the illustrative variant of Camera 200, which is shown above in relation to Fig. 2A and Fig. 2B is described. Common components of Fig. 2A and Fig. 2B share the same markings, and certain components of camera 200 or sections thereof (e.g., the lens holder 214 and an upper section of the housing 212) are omitted from the figures to better illustrate other camera components. As in Fig. As shown in Figure 6B, the first end 602 of the flex circuit 600 can be fixed relative to the image sensor 204 and can be fixed relative to the sensor carrier 216. The fourth segment 616 and the fifth segment 620 can be positioned on a common side of the camera, and the multiple segments of the flex circuit can wrap around or otherwise surround the sensor carrier 216 on all sides. Additionally, the flex circuit can be wound around the section of the lens holder (not shown) that holds the coil 226.
[0051] In the Fig. In the variant shown in Figure 6B, the camera 200 may need to be dimensioned with sufficient space to accommodate the flex circuit 600 on each side of the camera 200. In other variants, at least one segment of the plurality of segments of the flex circuit 600 may overlap with the sensor carrier 216, which may allow a further reduction in the footprint of the camera 200. For example, in the Fig. In the variant shown in Figure 6C, one of the segments (the second segment 608, as shown there, but it may be a different segment in other variants) crosses a section of the sensor carrier 216. In other words, that segment may be positioned between the sensor carrier 216 and the lens holder, and may further be positioned such that the flex circuit is not located between the coil 226 and an adjacent wall of the housing (not shown). This may allow the flex circuit 600 to utilize any space otherwise available between the sensor carrier 216 and the lens holder 214. It should be noted that the camera 200 and the flex circuit 600 may be configured such that the flex circuit 600 does not touch the lens holder 214 or the sensor carrier 216 during normal operation (e.g.,over the operating range), but can also be configured so that the lens holder and / or the sensor carrier 216 can serve as end stops for the flex circuit 600.
[0052] While the second segment 608 in Fig. Where 6A to 6C is shown as vertically aligned, it should be noted that the second segment of a flex circuit may in some cases be horizontally aligned, so that a normal vector to the second segment is parallel to a direction of movement of the image sensor. Fig. Figure 7A shows a perspective view of such a variant of a flex circuit 700. As shown there, the flex circuit 700 can include a plurality of segments, comprising a first segment 702, a second segment 704, and a third segment 706. The first segment 702 can be connected to the second segment 704 at a first bend 708, while the second segment 704 can be connected to the third segment 706 at a second bend 710. As shown there, the first segment 702 and the third segment 706 can each be vertically oriented such that the normal vector of each respective segment is perpendicular to a first direction (e.g., a direction of movement of the image sensor, as discussed above). Preferably, the first segment 702 and the third segment 706 are also parallel to each other. The second segment 704 is horizontally oriented such that a normal vector of the second segment 704 is parallel to the first direction.To allow the change in orientation between the first segment 702 and the second segment 704, the first segment 702 can make a turn (in . Fig. 7A (shown as winding 714) which can cause the first bend 708 to bend around an axis perpendicular to an axis around which the first bend 612 in the flex circuit 600 of Fig. 6A bends around. Likewise, the third segment 706 can have one turn (in Fig. 7A (shown as turn 712) which also changes the direction of the axis around which the second bend 710 bends.
[0053] The first segment 702 and the third segment 706 can still rotate, with the second segment 704 acting as a lever arm during image sensor movement. However, the second segment 704 can be positioned under a section of the image sensor and / or sensor carrier, so that the image sensor and / or sensor carrier is positioned between the second segment 704 and the lens. This can allow a reduction in the width or length of a camera at the expense of camera height. For illustration, [reference to illustration] Fig. 7B is a top view showing how Flex Circuit 700 can be integrated into the illustrative variant of Camera 200, which is shown above in relation to Fig. 2A and Fig. 2B is described. Common components of Fig. 2A and Fig. Figure 2B shares the same markings, and certain components of camera 200 or sections thereof (e.g., the lens holder 214 and an upper section of the housing 212) are omitted from the figures to better illustrate other camera components. As shown there, the second segment 704 can be positioned under a section of both the image sensor 204 and the sensor carrier 216, such that the image sensor 204 and the sensor carrier 216 are positioned between the second segment 704 and the lens 206 and / or the lens holder 214 along a direction of movement of the image sensor 204.
[0054] The Flex Circuit 700 can include a fourth segment, which may comprise one turn and be connected to the first segment at a third bend and to a first end of the Flex Circuit at a fourth bend; a fifth segment, which may comprise one turn and be connected to the third segment at a fifth bend and to a second end of the Flex Circuit at a sixth bend; and can include one or more reinforcing layers. These elements can be used in the same way as the corresponding elements of the Flex Circuit 600 variant. Fig. 6A configured, and are accordingly marked using the same figure markings as in Fig. 6A are used.
[0055] Fig. Figure 8A shows a perspective variant of a Flex Circuit 800, which has at least four planar segments positioned such that a first end is connected to a second end of the Flex Circuit. As shown there, the Flex Circuit 800 can comprise a first end 802 (which may be fixed with respect to an image sensor), a second end 804 (which may be fixed with respect to another component of the camera), and a plurality of segments, comprising a first segment 806, a second segment 808, and a third segment 810, which connect the first end 802 to the second end 804. The first segment 806 can be connected to the second segment 808 at a first bend 812, while the second segment 808 can be connected to the third segment 810 at a second bend 814.As shown there, the first segment 806, the second segment 808 and the third segment 810 can each be vertically oriented such that the normal vector of each respective segment is perpendicular to a common first direction (e.g. along a direction of movement of the image sensor), however, it should be noted that the first segment 806, the second segment 808 and the third segment 810 can be configured such that the second segment 808 is horizontally oriented (as above with respect to the Flex circuit 700 of ). Fig. (as described in 7A). Preferably, the first segment 806 and the third segment 810 are also parallel to each other. The first segment 806 and the third segment 810 can rotate, with the second segment 808 acting as a lever arm, as the first end 802 moves away from the second end 804 along a first direction, as described above with respect to flex circuit 300. Fig. 3A and Fig. 3B is described. In addition, the flex circuit 800 can include one or more reinforcing layers 828, which can be positioned at any suitable parts of the flex circuit 800, as described in more detail above.
[0056] As in Fig. As shown in Figure 8A, the flex circuit 800 can further comprise a fourth segment 816. The fourth segment 816 can be connected to the first segment 806 at a third bend 818, and can further be connected to the first end 802 at a fourth bend 820. In some variants, the fourth segment can be a turn (e.g., a first in Fig. The third segment 810 (turn 824 shown in Figure 8A) can be formed between the third bend 818 and the fourth bend 820, such that the third bend 818 and the fourth bend 820 bend around different (e.g., perpendicular) axes. The third segment 810 can be connected to the second end 804 at a fifth bend 822 and can form one turn (e.g., a second turn 826, which is formed in Figure 8A). Fig. 8A is shown) between the second bend 814 and the fifth bend 822, so that the second bend 814 and the fifth bend 822 bend around different (e.g. perpendicular) axes.
[0057] In these variants, it may also be possible for the second segment 808 and the fourth segment 816 (e.g., with the first segment 806 acting as a lever arm) to twist relative to each other along the first direction during movement between the first and second ends. However, in some of these variants, the flex circuit 800 may be configured such that the first segment 806 and the third segment 810 twist more easily than the second segment 808 and the fourth segment 816. If the operating range of the camera actuator assembly is sufficiently small, the flex circuit 800 may experience twisting in the first segment 806 and the third segment 810, but not in the second segment 808 or the fourth segment 816, provided the flex circuit 800 moves within the operating range. While the first segment 806 and the third segment 810 in Fig. Where 8A is shown connected to the fourth segment 816 or the second end 804, it should be noted that in other embodiments the third segment 810 may be connected to the fourth segment 816 (and thus the first end 802), while the first segment 806 may be connected to the second end 804.
[0058] Fig. Figure 8B shows a top view of how Flex Circuit 800 can be integrated into the illustrative variant of Camera 200, which is shown above in relation to Fig. 2A and Fig. 2B is described. Common components of Fig. 2A and Fig. Figure 2B shares the same markings, and certain components of camera 200 or sections thereof (e.g., the lens holder 214 and an upper section of the housing 212) are omitted from the figures to better illustrate other camera components. As shown there, the plurality of segments of the flex circuit 800 can wrap around or otherwise surround the sensor carrier 216 on all sides of the sensor carrier 216. Additionally, the flex circuit 800 can wrap around the section of the lens holder (not shown) that holds the coil 226. Each of the four segments of the flex circuit 800 can be positioned adjacent to a different respective wall of the camera housing (not shown). In other cases, one or more segments of the flex circuit 800 can be positioned to overlap at least one section of the image sensor 204 and / or the sensor carrier 216, as above with respect to Fig. 6B discussed.
[0059] Fig. Figure 9A shows a perspective variant of a Flex Circuit 900, which has three segments, each with a first end connected to a second end of the Flex Circuit 900, two of which are connected to the first end and the second end at respective bends. As shown there, the Flex Circuit 900 can comprise a first end 902 (which may be fixed with respect to an image sensor), a second end 904 (which may be fixed with respect to another component of the camera), and a plurality of planar segments, comprising a first segment 906, a second segment 908, and a third segment 910, which connect the first end 902 to the second end 904. The first segment 906 can be connected to the second segment 908 at a first bend 912, while the second segment 908 can be connected to the third segment 910 at a second bend 914.As shown there, the first segment 906, the second segment 908 and the third segment 910 can each be vertically oriented, so that the normal vector of each respective segment is perpendicular to a common first direction (e.g. along a direction of movement of the image sensor), however, it should be noted that the first segment 906, the second segment 908 and the third segment 910 can be configured such that the second segment 908 is horizontally oriented (as above with respect to the Flex Circuit 700 of ). Fig. (as described in 7A). Preferably, the first segment 906 and the third segment 910 are also parallel to each other. The first segment 906 and the third segment 910 can twist, with the second segment 908 acting as a lever arm, as the first end 902 moves away from the second end 904 along the first direction, as described above with respect to flex circuit 300. Fig. 3A and Fig. 3B is described. In addition, the flex circuit 900 can comprise one or more reinforcement layers 924, which can be positioned at any suitable parts of the flex circuit 900, as described in more detail above.
[0060] As mentioned above, the first segment 906 can be connected to the first end 902 (which in turn can be connected to an image sensor) at a third bend 916. In some of these variants, the first segment 906 can include one turn (e.g., a first turn 920), so that the first bend 912 and the third bend 916 can bend around different (e.g., perpendicular) axes. Similarly, the third segment 910 can be connected to the second end 904 at a fourth bend 918. In some of these variants, the third segment 910 can include one turn (e.g., a second turn 922), so that the second bend 914 and the fourth bend 918 can bend around different (e.g., perpendicular) axes.
[0061] If the variant of Flexschaltung 900, which is in Fig. As shown in Figure 9A, when placed in a camera, the Flex Circuit 900 can be positioned adjacent to three sides of the camera, which can allow a reduction in the camera footprint compared to other embodiments of Flex Circuits described above, where the Flex Circuit is positioned adjacent to four sides of the camera. For example, Figure 9A shows... Fig. 9B a top view of how Flex Circuit 900 can be integrated into the illustrative variant of Camera 200, which is shown above in relation to Fig. 2A and Fig. 2B is described. Common components of Fig. 2A and Fig. 2B share the same markings, and certain components of camera 200 or sections thereof (e.g., the lens holder 214 and an upper section of the housing 212) are omitted from the figures to better illustrate other camera components. As shown there, the multitude of segments of the flex circuit 900 can wrap around or otherwise surround the sensor carrier 216 on three sides of the sensor carrier 216. While the flex circuit 900 in Fig. If the flex circuit 900 is positioned such that the flex circuit 9B is not located between the coil 226 and an adjacent wall of the camera, it should be noted that there may be another side of the camera 200 where the flex circuit 900 is not present. Since the camera does not require a minimum distance on this side to accommodate the flex circuit 900, the footprint of the camera 200 can be reduced in configurations where the flex circuit is located on the side of the camera 200.
[0062] It should be noted that the flexible circuits and cameras described here can be integrated into any suitable system. In some cases, a camera can be manufactured as a standalone device. In other embodiments, the cameras described here can be integrated into another electronic device, such as mobile phones (e.g., smartphones), computers, tablets, gaming devices, peripherals thereof, or the like.
[0063] The preceding description uses specific nomenclature for explanatory purposes, in order to provide a thorough understanding of the described embodiments. However, it is evident to the person skilled in the art that, after reading this description, the specific details are not required to carry out the described embodiments. Thus, the preceding descriptions of the specific embodiments are presented here for illustrative and descriptive purposes. They are not intended to be exhaustive or to limit the embodiments to the precise forms disclosed. It is evident to the person skilled in the art that, after reading this description, many modifications and variations are possible in light of the preceding teachings.
Claims
[1] Camera (100, 200), comprehensive: a lens (106, 206); an image sensor (104, 204) positioned to receive light through the lens (106, 206); an actuator arrangement (108, 218) configured to move the image sensor (104, 204) along a first direction (318) within the camera (100, 200) and parallel to an optical axis (220) of the camera (100, 200); and a flexible circuit (102, 202), wherein the flexible circuit (102, 202) comprises: a plurality of planar segments (326), comprising a first segment (306) connected to a second segment (308) via a first bend (312), and a third segment (310) connected to the second segment (308) via a second bend (314); a first end (302, 602); and a second ending (304, 604), wherein the multitude of planar segments (326) connect the first end (302, 602) with the second end (304, 604); wherein the first end (302, 602) is fixed with respect to the image sensor (104, 204) and movable with respect to the second end (304, 604) when the image sensor (104, 204) moves along the first direction (318), and wherein the flex circuit (102, 202) is positioned such that the first segment (306) rotates when the image sensor (104, 204) moves along the first direction (318). [2] Camera (100, 200) according to claim 1, wherein the first segment (306) is oriented such that a normal vector of the first segment (306) is perpendicular to the first direction (318), and the third segment (310) is oriented such that a normal vector of the third segment (310) is perpendicular to the first direction (318). [3] Camera (100, 200) according to claim 2, wherein the first segment (306) is parallel to the third segment (310). [4] Camera (100, 200) according to claim 2, wherein the second segment (308) is oriented such that a normal vector of the second segment (308) is parallel to the first direction (318). [5] Camera (100, 200) according to claim 2, wherein the second segment (308) is oriented such that a normal vector of the second segment (308) is perpendicular to the first direction (318). [6] Camera (100, 200) according to claim 1, wherein the flex circuit (102, 202) further comprises a fourth segment (616), wherein the fourth segment (616) is connected to the first segment (306) at a third bend (618). [7] Camera (100, 200) according to claim 6, wherein the fourth segment (616) is connected to the first end (302, 602) at a fourth bend (622). [8] Camera (100, 200) according to claim 7, wherein the third segment (310) is connected to the second end (304, 604) at a fifth bend (624). [9] Camera (100, 200) according to claim 6, wherein the flex circuit (102, 202) further comprises a fifth segment (620), wherein the fifth segment (620) is connected to the third segment (310) at a fifth bend (624). [10] Camera (100, 200) according to claim 1, further comprising a sensor carrier (216) which is fixed in relation to the image sensor (104, 204) and a lens holder (214) which is connected to the lens (106, 206), wherein the second segment (308) is positioned between the sensor carrier (216) and the lens holder (214). [11] Camera (100, 200) according to claim 1, further comprising a sensor carrier (216) which is fixed in relation to the image sensor (104, 204) and a lens holder (214) which is connected to the lens (106, 206), wherein the sensor carrier (216) is positioned between the second segment (308) and the lens holder (214). [12] Camera (100, 200), including: a lens (106, 206); an image sensor (104, 204) positioned to receive light through the lens (106, 206); an actuator arrangement (108, 218) configured to move the image sensor (104, 204) along a first direction (318) within the camera (100, 200); and a flex circuit (102, 202) comprising a plurality of planar segments (326) connected via one or more bends, wherein the flex circuit (102, 202) is connected to and positioned with respect to the image sensor (104, 204) such that at least one of the plurality of planar segments (326) rotates during movement of the image sensor (104, 204) along the first direction (318), where the first direction (318) is parallel to an optical axis (220) of the camera (100, 200). [13] Camera (100, 200) according to claim 12, wherein at least one of the plurality of planar segments (326) comprises a first segment (306), wherein a length of the first segment (306) is aligned perpendicular to the first direction (318) and a width of the first segment (306) is aligned parallel to the first direction (318) and wherein the first segment (306) rotates around the length of the first segment (306) during movement of the image sensor (104, 204) along the first direction (318). [14] Camera (100, 200) according to claim 13, wherein the flex circuit (102, 202) comprises a first end (302, 602) which is fixed in relation to the image sensor (104, 204), and wherein the first segment (306) is connected to the first end (302, 602) at a bend. [15] Arrangement, comprehensive: an image sensor (104, 204), comprising an optical axis (220); and a flexible circuit (102, 202), comprising: a first end (302, 602) that is fixed in relation to the image sensor (104, 204); a second ending (304, 604); and a multitude of planar segments (326) connecting the first end (302, 602) to the second end (304, 604) and comprising a first segment (306), a second segment (308) and a third segment (310), wherein the first segment (306) is connected to the second segment (308) at a first bend (312) and the second segment (308) is connected to the third segment (310) at a second bend (314) and wherein the first segment (306) is oriented such that a normal vector of the first segment (306) is perpendicular to the optical axis (220) of the image sensor (104, 204), and the third segment (310) is oriented such that a normal vector of the third segment (310) is perpendicular to the optical axis (220) of the image sensor (104, 204), wherein the second segment (308) is oriented such that a normal vector of the second segment (308) is parallel to the optical axis (220) of the image sensor (104, 204). [16] Arrangement according to claim 15, wherein a first segment (306) is parallel to the third segment (310).
Citation Information
Patent Citations
Optical image stabilization with voice coil motor for moving image sensor
US20190141248A1
Camera focus and stabilization system
US20210080807A1
Voice coil motor, camera and electronic equipment
CN112886788A
Camera module
US20140307114A1
Power supply device to image sensor, camera device and electronic device both having such power supply device mounted therein
US20200120277A1