PATENT DOCUMENT

Publication Number: US-12111452-B2
Application Number: US-202117408310-A
Country: US
Kind Code: B2

Title: Folded optics with tilt actuator and spring suspension

Abstract:
Various embodiments include a tilt actuator and a spring suspension arrangement for use in a camera having a folded optics arrangement. In some embodiments, the folded optics arrangement may include a light path-folding element that is coupled with a carrier and that is tilted using the tilt actuator. The spring suspension arrangement may suspend the carrier and the light path-folding element from a base structure, and may allow motion of the light path-folding element enabled by the tilt actuator. The spring suspension arrangement may include one or more springs attached to the carrier and to the base structure. In some embodiments, the spring suspension arrangement may further include one or more suspension wires attached to the spring(s) and to a stationary structure of the camera.

Claims:
What is claimed is: 
     
       1. A camera, comprising:
 a light folding element to fold a path of light; 
 a carrier that is coupled with the light folding element, such that the carrier is moveable together with the light folding element; 
 a base structure that is stationary relative to motion of the carrier; 
 an image sensor to capture image data based on the light that has been folded by the light folding element; 
 an actuator comprising a stationary magnet to tilt, about a tilt axis, the light folding element relative to the image sensor, wherein the stationary magnet is stationary within the camera; and 
 a suspension arrangement to suspend the carrier from the base structure and to allow motion of the light folding element enabled by the actuator, the suspension arrangement comprising:
 one or more springs, comprising:
 a first spring portion attached to the carrier; 
 a second spring portion attached the base structure; and 
 a third spring portion that interconnects the first spring portion with the second spring portion, wherein the third spring portion extends, in a direction parallel to the tilt axis, from the first spring portion to the second spring portion. 
 
 
 
     
     
       2. The camera of  claim 1 , wherein:
 the direction parallel to the tilt axis is a first direction; and 
 the suspension arrangement further comprises: a wire that extends, in a second direction that is orthogonal to the first direction, from the one or more springs to a stationary structure of the camera. 
 
     
     
       3. The camera of  claim 2 , further comprising:
 a flex circuit; 
 wherein the actuator comprises a coil and the stationary magnet; and 
 wherein the camera is configured to convey electrical current from the flex circuit to the coil via the wire and at least a portion of the one or more springs, and wherein the electrical current is for driving the coil so that the coil electromagnetically interacts with the stationary magnet. 
 
     
     
       4. The camera of  claim 2 , wherein:
 the one or more springs comprise a first sheet spring attached to a first portion of the carrier; 
 the wire comprises a first wire attached to the first sheet spring; and 
 the suspension arrangement further comprises:
 a second sheet spring attached to a second portion of the carrier, wherein the second portion is opposite the first portion relative to the light folding element and relative to a plane defined by the path of light that is folded by the light folding element; and 
 a second wire attached to the second sheet spring. 
 
 
     
     
       5. The camera of  claim 1 , wherein:
 the one or more springs comprise a flexure formed from a sheet; and 
 the flexure comprises the first spring portion, the second spring portion, and the third spring portion. 
 
     
     
       6. The camera of  claim 1 , wherein the actuator comprises:
 a coil attached to the carrier such that the coil is moveable together with the carrier, wherein the coil is located proximate the stationary magnet such that the coil is capable of electromagnetically interacting with the stationary magnet to produce Lorentz forces that tilt the carrier and the light folding element about the tilt axis. 
 
     
     
       7. The camera of  claim 1 , wherein the light folding element comprises:
 a prism; or 
 a mirror. 
 
     
     
       8. A system, comprising:
 a carrier to couple with a light folding element, such that the carrier is moveable together with the light folding element; 
 a base structure that is stationary relative to motion of the carrier; 
 an actuator comprising a stationary magnet to tilt, about a tilt axis, the light folding element relative to an image sensor of a camera, wherein the stationary magnet is stationary relative to motion of the carrier, wherein the light folding element is to fold a path of light before the light reaches the image sensor; and 
 a suspension arrangement to suspend the light folding element from the base structure and to allow motion of the light folding element enabled by the actuator, the suspension arrangement comprising:
 one or more springs, comprising:
 a first spring portion attached to the carrier; 
 a second spring portion attached the base structure; and 
 a third spring portion that interconnects the first spring portion with the second spring portion, wherein the third spring portion extends, in a direction parallel to the tilt axis, from the first spring portion to the second spring portion. 
 
 
 
     
     
       9. The system of  claim 8 , wherein:
 the direction parallel to the tilt axis is a first direction; and 
 the suspension arrangement further comprises: a wire that extends, in a second direction that is orthogonal to the first direction, from the one or more springs to a stationary structure of the camera. 
 
     
     
       10. The system of  claim 9 , further comprising:
 a flex circuit; 
 wherein the actuator comprises a coil and the stationary magnet; and 
 wherein the camera is configured to convey electrical current from the flex circuit to the coil via the wire and at least a portion of the one or more springs, and wherein the electrical current is for driving the coil so that the coil electromagnetically interacts with the stationary magnet. 
 
     
     
       11. The system of  claim 10 , further comprising:
 a probe magnet attached to the carrier; and 
 a position sensor attached to the flex circuit and positioned proximate the probe magnet, such that the position sensor is capable of detecting changes in the magnetic fields of the probe magnet as the carrier moves. 
 
     
     
       12. The system of  claim 9 , wherein:
 the one or more springs comprise a first sheet spring attached to a first portion of the carrier; 
 the wire comprises a first wire attached to the first sheet spring; and 
 the suspension arrangement further comprises:
 a second sheet spring attached to a second portion of the carrier, wherein the second portion is opposite the first portion relative to the light folding element and relative to a plane defined by the path of light that is folded by the light folding element; and 
 a second wire attached to the second sheet spring. 
 
 
     
     
       13. The system of  claim 8 , wherein the actuator comprises:
 a coil attached to the carrier such that the coil is moveable together with the carrier, wherein the coil is located proximate the stationary magnet such that the coil is capable of electromagnetically interacting with the stationary magnet to produce Lorentz forces that tilt the carrier and the light folding element about the tilt axis. 
 
     
     
       14. The system of  claim 8 , wherein the light folding element comprises a prism. 
     
     
       15. The system of  claim 8 , further comprising:
 a damping pin attached to the base structure, wherein a portion of the damping pin is disposed in a viscoelastic material contained in a pocket defined by the carrier, and wherein the damping pin is to dampen motion of the carrier. 
 
     
     
       16. A device, comprising:
 one or more processors; 
 memory storing program instructions executable by the one or more processors to control operations of a camera; and 
 the camera, comprising:
 a light folding element that receives light along a first optical axis and folds a path of the light from the first optical axis to a second optical axis; 
 a carrier that is coupled with the light folding element, such that the carrier is moveable together with the light folding element; 
 a base structure that is stationary relative to motion of the carrier; 
 an image sensor to capture image data based on the light that has been folded by the light folding element; 
 an actuator comprising a stationary magnet to tilt, about a tilt axis, the light folding element relative to the image sensor, wherein the stationary magnet is stationary within the camera; and 
 a suspension arrangement to suspend the carrier from the base structure and to allow motion of the light folding element enabled by the actuator, the suspension arrangement comprising:
 one or more springs, comprising:
 a first spring portion attached to the carrier; 
 a second spring portion attached the base structure; and 
 a third spring portion that interconnects the first spring portion with the second spring portion, wherein the third spring portion extends, in a direction parallel to the tilt axis, from the first spring portion to the second spring portion. 
 
 
 
 
     
     
       17. The device of  claim 16 , wherein:
 the direction parallel to the tilt axis is a first direction; and 
 the suspension arrangement further comprises:
 a wire that extends, in a second direction that is orthogonal to the first direction, from the one or more springs to a stationary structure of the camera. 
 
 
     
     
       18. The device of  claim 17 , wherein:
 the light folding element comprises a prism; and 
 the third spring portion is a torsion member that twists in compliance to tilt of the carrier and the prism about the tilt axis. 
 
     
     
       19. The device of  claim 18 , wherein:
 the wire is stiffer, in the second direction, than the second spring portion; 
 the first spring portion is configured to have flex to a greater degree than the second spring portion when the prism moves in the second direction; and 
 the second spring portion is configured to flex to a greater degree than the first spring portion when the prism moves in the first direction. 
 
     
     
       20. The device of  claim 16 , wherein the actuator comprises:
 a coil attached to the carrier such that the coil is moveable together with the carrier, wherein the coil is located proximate the stationary magnet such that the coil is capable of electromagnetically interacting with the stationary magnet to produce Lorentz forces that tilt the carrier and the light folding element about the tilt axis.

Description:
This application claims benefit of priority to U.S. Provisional Application Ser. No. 63/071,277, entitled “Folded Optics with Tilt Actuator and Spring Suspension,” filed Aug. 27, 2020, and which is incorporated herein by reference in its entirety. 
    
    
     BACKGROUND 
     Technical Field 
     This disclosure relates generally to a tilt actuator and a spring suspension for use in a camera having a folded optics arrangement. 
     Description of the Related Art 
     The advent of small, mobile multipurpose devices such as smartphones and tablet or pad devices has resulted in a need for high-resolution, small form factor cameras for integration in the devices. Some small form factor cameras may incorporate optical image stabilization (OIS) mechanisms that may sense and react to external excitation/disturbance by adjusting location of the optical lens on the X and/or Y axis in an attempt to compensate for unwanted motion of the lens. Some small form factor cameras may incorporate an autofocus (AF) mechanism whereby the object focal distance can be adjusted to focus an object plane in front of the camera at an image plane to be captured by the image sensor. In some such autofocus mechanisms, the optical lens is moved as a single rigid body along the optical axis of the camera to refocus the camera. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG.  1    illustrates a schematic perspective view of an example camera having a folded optics arrangement and that may include a tilt actuator and/or a spring suspension arrangement, in accordance with some embodiments. 
         FIGS.  2 A and  2 B  illustrate views of an example prism module that may be used in a camera having a folded optics arrangement, in accordance with some embodiments. The prism module may include a tilt actuator and/or a spring suspension arrangement in various embodiments.  FIG.  2 A  shows a perspective exploded view of the prism module.  FIG.  2 B  shows a perspective view of the prism module (with components in an assembled state). 
         FIGS.  3 A and  3 B  illustrate views of an example spring suspension arrangement that may be used in a camera having a folded optics arrangement and/or a tilt actuator, in accordance with some embodiments.  FIG.  3 A  shows a perspective view of the spring suspension arrangement.  FIG.  3 B  shows a top view of the spring suspension arrangement. 
         FIGS.  4 A- 4 D  illustrate views of an example spring suspension arrangement that may be used, for example, in a prism module having a prism that may be tilted via a tilt actuator, in accordance with some embodiments.  FIG.  4 A  shows a rest state corresponding to the spring suspension arrangement being in a rest position.  FIG.  4 B  shows a first deflection state indicating deflection of the spring suspension arrangement when the prism tilts, relative to the rest position, about a first axis (e.g., a Y-axis).  FIG.  4 C  shows a second deflection state indicating deflection of the spring suspension arrangement when the prism translates, relative to the rest position, in a first direction (e.g., a Z-axis direction).  FIG.  4 D  shows a third deflection state indicating deflection of the spring suspension arrangement when the prism translates, relative to the rest position, in a second direction (e.g., a Y-axis direction). 
         FIG.  5    illustrates a schematic representation of an example device that may include a camera having a folded optics arrangement with a tilt actuator and/or a spring suspension arrangement, in accordance with some embodiments. 
         FIG.  6    illustrates a schematic block diagram of an example computer system that may include a camera having a folded optics arrangement with a tilt actuator and/or a spring suspension arrangement, in accordance with some embodiments. 
     
    
    
     This specification includes references to “one embodiment” or “an embodiment.” The appearances of the phrases “in one embodiment” or “in an embodiment” do not necessarily refer to the same embodiment. Particular features, structures, or characteristics may be combined in any suitable manner consistent with this disclosure. 
     “Comprising.” This term is open-ended. As used in the appended claims, this term does not foreclose additional structure or steps. Consider a claim that recites: “An apparatus comprising one or more processor units . . . .” Such a claim does not foreclose the apparatus from including additional components (e.g., a network interface unit, graphics circuitry, etc.). 
     “Configured To.” Various units, circuits, or other components may be described or claimed as “configured to” perform a task or tasks. In such contexts, “configured to” is used to connote structure by indicating that the units/circuits/components include structure (e.g., circuitry) that performs those task or tasks during operation. As such, the unit/circuit/component can be said to be configured to perform the task even when the specified unit/circuit/component is not currently operational (e.g., is not on). The units/circuits/components used with the “configured to” language include hardware—for example, circuits, memory storing program instructions executable to implement the operation, etc. Reciting that a unit/circuit/component is “configured to” perform one or more tasks is expressly intended not to invoke 35 U.S.C. § 112(f) for that unit/circuit/component. Additionally, “configured to” can include generic structure (e.g., generic circuitry) that is manipulated by software and/or firmware (e.g., an FPGA or a general-purpose processor executing software) to operate in manner that is capable of performing the task(s) at issue. “Configure to” may also include adapting a manufacturing process (e.g., a semiconductor fabrication facility) to fabricate devices (e.g., integrated circuits) that are adapted to implement or perform one or more tasks. 
     “First,” “Second,” etc. As used herein, these terms are used as labels for nouns that they precede, and do not imply any type of ordering (e.g., spatial, temporal, logical, etc.). For example, a buffer circuit may be described herein as performing write operations for “first” and “second” values. The terms “first” and “second” do not necessarily imply that the first value must be written before the second value. 
     “Based On.” As used herein, this term is used to describe one or more factors that affect a determination. This term does not foreclose additional factors that may affect a determination. That is, a determination may be solely based on those factors or based, at least in part, on those factors. Consider the phrase “determine A based on B.” While in this case, B is a factor that affects the determination of A, such a phrase does not foreclose the determination of A from also being based on C. In other instances, A may be determined based solely on B. 
     It will also be understood that, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first contact could be termed a second contact, and, similarly, a second contact could be termed a first contact, without departing from the intended scope. The first contact and the second contact are both contacts, but they are not the same contact. 
     The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used in the description and the appended claims, the singular forms “a”, “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will also be understood that the term “and/or” as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items. It will be further understood that the terms “includes,” “including,” “comprises,” and/or “comprising,” when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. 
     As used herein, the term “if” may be construed to mean “when” or “upon” or “in response to determining” or “in response to detecting,” depending on the context. Similarly, the phrase “if it is determined” or “if [a stated condition or event] is detected” may be construed to mean “upon determining” or “in response to determining” or “upon detecting [the stated condition or event]” or “in response to detecting [the stated condition or event],” depending on the context. 
     DETAILED DESCRIPTION 
     Some embodiments include a tilt actuator and a suspension arrangement for use in a camera having a folded optics arrangement. In some embodiments, the folded optics arrangement may include a light path-folding element (e.g., a prism, a mirror, or the like) that is coupled with a carrier. The carrier may be tilted relative to a base structure using the tilt actuator, e.g., to provide optical image stabilization (OIS) in at least one direction. The spring suspension arrangement may suspend the carrier and the light path-folding element from the base structure, and may allow motion of the light path-folding element enabled by the tilt actuator. The spring suspension arrangement may include one or more springs attached to the carrier and to the base structure. In some embodiments, the spring suspension arrangement may further include one or more suspension wires attached to the spring(s) and to a stationary structure of the camera. According to some embodiments, the spring suspension arrangement may be designed to have relatively low stiffness in the direction of tilt, and relatively high stiffness in directions that are undesirable for motion of the light path-folding element. As will be discussed in further detail herein, the spring suspension arrangement comprises multiple portions that function differently and that can be independently tuned to achieve the desired modal performance. 
     According to various embodiments, the tilt actuator may comprise a voice coil motor (VCM) actuator. For example, the VCM actuator may include a stationary magnet and a moveable coil. In some embodiments, the stationary magnet may be attached to the base structure and positioned proximate the coil. The coil may be attached to the carrier, such that the coil moves together with the carrier and the light path-folding element. In some embodiments, the stationary magnet may reduce magnetic coex sensitivity between adjacent camera modules and/or to system magnetic coex aggressors. 
     Reference will now be made in detail to embodiments, examples of which are illustrated in the accompanying drawings. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure. However, it will be apparent to one of ordinary skill in the art that some embodiments may be practiced without these specific details. In other instances, well-known methods, procedures, components, circuits, and networks have not been described in detail so as not to unnecessarily obscure aspects of the embodiments. 
     Described herein are embodiments of a camera that includes a tilt actuator and/or a spring suspension arrangement. The arrangements discussed throughout generally relate to a camera having a folded optics arrangement, with one or more optical elements (e.g., a prism, a lens group, etc.) and/or the image sensor being moveable via one or more actuators to provide optical image stabilization (OIS) and/or autofocus (AF) during imaging.  FIG.  1    shows a generalized example of such a camera  100 . The example X-Y-Z coordinate system shown in  FIG.  1    may apply to embodiments discussed throughout this disclosure. 
     According to various embodiments, the camera  100  may include at least one light path-folding element (e.g., a prism, a mirror, etc.; also referred to herein as a “light folding element”) that can be tilted relative to one or more other optical elements and/or an image sensor. For example, the camera  100  may include a prism module  102  comprising a prism  104 , a spring suspension arrangement  106 , and/or one or more actuators  108 . Furthermore, as indicated in  FIG.  1   , the camera  100  may include a lens group  110  and an image sensor  112  in some embodiments. The lens group  110  may include one or more lens elements. The image sensor  112  may capture image data based on light that has passed through at least a portion of the folded optics arrangement. The camera  100  is intended to provide an example of a camera having a folded optics arrangement; various embodiments, however, may include one or more differences (e.g., with respect to number of optical elements, type(s) of optical elements, and/or positioning of components, etc.) relative to the configuration of the camera  100  shown in  FIG.  1   . 
     In some embodiments, the lens group  110  may be located between the prism  104  (and/or the prism module  102 ) and the image sensor  112 . The prism  104  and the lens group  110  may form a folded optics arrangement (e.g., a single fold optics arrangement as indicated in  FIG.  1   ) through which light passes before reaching the image sensor  112 . Light may follow an optical path  114  that is folded by prism  104  such that the light is directed towards the lens group  110 , passes through the lens group  110 , and then reaches the image sensor  112 . In some examples, light may enter an object side of the prism  104  in a direction parallel to the Z-axis. The prism  104  may redirect the light to propagate in the X-axis direction (which may be parallel to an optical axis defined by the lens group  110 ), e.g., such that the light exits a lens group facing side of the prism  104 , towards the lens group  1120 . The light may pass through the lens group  110  and continue propagating in the X-axis direction towards the image sensor  112  (which may be vertically oriented, e.g., such that the image sensor  112  defines a plane that is orthogonal to the X-axis and/or the optical axis defined by the lens group  110 ). The prism  104 , the lens group  110 , and/or the image sensor  112  may be positioned along a common axis (e.g., the X-axis, the optical axis defined by the lens group  110 , etc.). According to some examples, the optical path  114  may be contained within a plane (e.g., parallel to the X-Z plane), and the image sensor  112  may extend along a different plane (e.g., parallel to the Y-Z plane). 
     In some embodiments, the object side of the prism  104  may extend along the X-Y plane. Furthermore, the prism  104  may include a pair of opposing lateral sides that each extend along the X-Z plane, a lens group facing side that extends along the Y-Z plane, and a reflecting surface side that is angled relative to one or more of the other sides of the prism  104 . For example, the reflecting surface side of the prism  104  may include a reflective surface that is angled so as to redirect light received from the object side of the prism  104  towards the lens group  110  (via the lens group facing side of the prism  104 ) and the image sensor  112 , as discussed above. 
     While a prism is shown in various figures as an example of a light path-folding element, the camera systems and/or folded optics arrangements described herein may include any suitable light path-folding element (e.g., a mirror or the like) or combination of elements. In some embodiments, a light path-folding element may also act as a lens element (or combination of lens elements). For example, one or more lens elements (e.g., other than those of the lens group  110 ) may be integrated with the prism  104  (and/or another prism) such that the prism acts as a lens element. Additionally, or alternatively, the prism  104  may be shaped such that the prism acts as a lens element. 
     In various embodiments, the prism  104  and/or the lens group  110  may be coupled with one or more actuators (e.g., as also discussed herein with reference to at  FIGS.  2 A- 2 B ) configured to move the prism  104  and/or the lens group  110  to provide optical image stabilization (OIS) and/or autofocus (AF) functionality. For example, the prism  104  may be coupled with actuator(s)  108  configured to tilt or otherwise move the prism  104 . As indicated in  FIG.  1   , in various embodiments the actuator(s)  108  may be configured to tilt the prism  104  about one or more axes to provide OIS functionality. According to various embodiments, the actuator(s)  108  may include a tilt actuator for tilting the prism  104  about the Y-axis (tilt indicated in  FIG.  1    as θ y ) to provide OIS-Z movement (e.g., movement that shifts the image projected onto the image sensor  112  in the Z-axis). In some embodiments, the actuator(s)  108  may additionally or alternatively tilt the prism  104  about the Z-axis to provide OIS-Y movement (e.g., movement that shifts the image projected onto the image sensor  112  in one or more directions parallel to the Y-axis). In various embodiments, the camera  100  may include one or more actuators for translating or otherwise moving the lens group  110 . For example, the actuator(s) may linearly translate the lens group  110  in a direction parallel to the X-axis to provide AF movement. 
     In some embodiments, the actuator(s)  108  (and/or other actuator(s) of the camera  100 ) may comprise one or more voice coil motor (VCM) actuators, e.g., as described herein with reference to  FIGS.  2 A- 2 B . However, the camera  100  may additionally, or alternatively, include one or more other types of actuators (e.g., a piezoelectric actuator, a comb drive actuator, etc.) in some embodiments. 
     As previously mentioned, the prism module  102  may include the prism  104 , the spring suspension arrangement  106 , and/or the actuator(s)  108 . In some embodiments, the prism module  102  may include one or more aspects discussed in further detail with reference to  FIGS.  2 A- 4 D . For example, the prism module  102  may include a carrier (e.g., prism carrier  204  in  FIGS.  2 A- 4 D ) and a base structure (e.g., base structure  206  in  FIGS.  2 A- 4 D ). The carrier may be coupled with the prism  104 , such that the carrier is moveable (e.g., via the actuator(s)  108 ) together with the prism  104 . The base structure may be stationary relative to motion of the carrier. The spring suspension arrangement  106  may be configured to suspend the carrier from the base structure and to allow motion of the prism  104  enabled by the actuator(s)  108 . In some embodiments, the spring suspension arrangement  106  may include one or more springs (e.g., sheet spring(s)  212  in  FIGS.  2 A- 2 B , spring(s)  302  in  FIGS.  3 A- 4 D , etc.) and/or one or more wires (e.g., suspension wire(s)  214  in  FIGS.  2 A- 2 B , wire(s)  304  in  FIGS.  3 A- 4 D , etc.). 
       FIGS.  2 A and  2 B  illustrate views of an example prism module  200  that may be used in a camera (e.g., camera  100  in  FIG.  1   ) having a folded optics arrangement. The prism module  102  described herein with reference to  FIG.  1    may be the same as, or similar to, the prism module  200  in various embodiments.  FIG.  2 A  shows a perspective exploded view of the prism module  200 .  FIG.  2 B  shows a perspective view of the prism module  200  (with components in an assembled state). 
     In some embodiments, the prism module  200  may include a prism  202 , a prism carrier  204 , a base structure  206 , one or more actuators (e.g., a VCM actuator comprising a drive magnet  208  and a drive coil  210 ), and/or a spring suspension arrangement (e.g., comprising sheet spring(s)  212  and/or suspension wire(s)  214 ). While  FIGS.  2 A- 4 D  refer to “prism  202 ” and/or “prism carrier  204 ,” it should be understood that prism  202  may be any suitable light path-folding element, and the prism carrier  204  may be any suitable light path-folding element carrier in various embodiments. 
     In some embodiments, the actuator(s) may include one or more magnets and one or more coils that electromagnetically interact with one another to produce Lorentz forces that move the prism carrier  204  together (e.g., in lockstep) with the prism  202  relative to the base structure  206 . For example, the drive magnet  208  may be positioned proximate the drive coil  210  so that they are capable of electromagnetically interacting with one another to tilt the prism carrier  204  and the prism  202 , e.g., relative to the base structure  206 , one or more optical elements (e.g., lens group  110  in  FIG.  1   ), and/or an image sensor (e.g., image sensor  112  in  FIG.  1   ). In some embodiments, the drive magnet  208  may be attached to a stationary structure, such as the base structure  206 . The drive coil  210  may be attached to a moveable structure, such as the prism carrier  204 . In some embodiments, the drive magnet  208  and/or the drive coil  210  may have a respective longest dimension that extends in the Y-axis direction. According to various embodiments, the drive coil  210  may be oriented such that current flows through the drive coil in directions parallel to the X-Y plane. 
     According to some examples, the drive magnet  208  and/or the drive coil  210  may be positioned behind and/or underneath the reflecting surface side of the prism  202 , e.g., as indicated in  FIG.  2 A . For example, at least a portion of the prism  202  may be positioned, in the X-axis direction between the magnet-coil pair (comprising the drive magnet  208  and the drive coil  210 ) and a lens group (e.g., lens group  110  in  FIG.  1   ) in some embodiments. 
     In some embodiments, the spring suspension arrangement may include one or more sheet springs  212  and/or one or more suspension wires  214 . Some examples may include a first sheet spring  212  and a first suspension wire  214  to a first side of the prism  202  (e.g., proximate a first side of the prism carrier  204 ). Furthermore, in some examples the spring suspension arrangement may include a second sheet spring  212  and a second suspension wire  214  to a second side of the prism  202  (e.g., proximate a second side of the prism carrier  204  that is opposite the first side of the prism carrier  204 , relative to prism  202 ). A different number of sheet springs  212  and/or a different number of suspension wires  214  may be used in various embodiments. 
     As discussed in further detail herein with reference to  FIGS.  3 A- 3 B , a respective sheet spring (e.g., spring  302  in  FIGS.  3 A- 3 B ) may include a first portion (e.g., first spring portion  306  in  FIGS.  3 A- 3 B ) attached to the prism carrier  204 , a second portion (e.g., second spring portion  308  in  FIGS.  3 A- 3 B ) attached to the base structure  206 , and/or a third portion (e.g., third spring portion  310  in  FIGS.  3 A- 3 B ) that interconnects the first portion with the second portion. In some embodiments, the third portion may extend in a first direction (e.g., the Y-axis direction) that is parallel to a tilt axis (an axis about which the prism  202  and the prism carrier  204  are tilted by the actuator(s)), from the first portion to the second portion. In some embodiments, a respective sheet spring  212  may be a flexure formed from a sheet of material (e.g., sheet metal). While in some embodiments a respective sheet spring  212  may be a monolithic component that is integrally formed (e.g., from a sheet of material), the suspension spring arrangement may additionally, or alternatively, include a spring/flexure formed from multiple components that are joined together to collectively function in the manner described herein with reference to the sheet spring  212  and/or the spring(s)  302  in  FIGS.  3 A- 4 D . 
     In some embodiments, a respective suspension wire  214  may extend, in a second direction (e.g., the Z-axis direction) that is orthogonal to the first direction (and/or orthogonal to the tilt axis), from a respective sheet spring  212  to a stationary structure  216 . In some embodiments, the stationary structure  216  may be part of, and/or connected to, the base structure  206 . For example, the stationary structure  216  may be a metallic tab that is attached to the base structure  206  in some embodiments. The suspension wire  214  may be attached to the sheet spring  212  and to the stationary structure  216  at respective joints  218  (e.g., solder joints). For example, a first portion (e.g., an upper end) of the suspension wire  214  may be attached to the sheet spring  212  via a first solder joint, and/or a second portion (e.g., a lower end) of the suspension wire  214  may be attached to the stationary structure  216  via a second solder joint. According to some non-limiting embodiments, the first portion of the suspension wire  214  may be attached to the first portion of the sheet spring  212 , e.g., proximate to the third portion of the sheet spring  212 . 
     In some embodiments, the camera and/or the prism module  200  may include a flex circuit  220  that is attached to the base structure  206 , e.g., as indicated in  FIGS.  2 A- 2 B . The flex circuit  220  may be used to convey electrical current to the drive coil  210 , e.g., via the suspension wire(s)  214  and the sheet spring(s)  212 . The flex circuit  220  may be coupled with other circuitry (not shown) of the camera. For example, the flex circuit  220  may be coupled with another flex circuit  220  comprising a driver integrated circuit used for driving the drive coil  210 . 
     According to some embodiments, the camera and/or the prism module  200  may include one or more damping pins  222  that may be configured to dampen motion of the prism carrier  204 , e.g., during actuation. In some embodiments, a first portion of a respective damping pin  222  may be attached to a stationary structure (e.g., the base structure  206 , as indicated in  FIG.  2 B ). The damping pin may extend (e.g., in the X-axis direction) towards a pocket  224  (and/or a cavity, a recess, or the like) within which a viscoelastic material is contained. The pocket  224  may be defined by a portion of the prism carrier  204 . In some embodiments, a second portion of the damping pin  222  may be disposed within the viscoelastic material contained in the pocket  224 , so as to interface with the viscoelastic material to dampen motion. In some embodiments, the second portion of the damping pin  222 , that is disposed within the viscoelastic material, may be distal to the first portion of the damping pin  222 . The damping pin  222  may include one or more bend portions. For example, the damping pin  222  may include a bend portion that allows the second portion to extend in a different direction (e.g., the Z-axis direction) than the first portion. According to some embodiments, the camera and/or the prism module  200  may include a first damping group (e.g., comprising a first damping pin  222  and a first pocket  224  containing a viscoelastic material) to a first side of the prism  202 , and a second damping group (e.g., comprising a second damping pin  222  and a second pocket  224  containing viscoelastic material) to a second side of the prism  202 , e.g., to form a damping arrangement having mirror symmetry (between the first damping group and the second damping group) with respect to the X-Z plane. 
     In some embodiments, the camera and/or the prism module  200  may include one or more probe magnets  226  and one or more position sensors  228 . For example, a respective probe magnet  226  may be attached to the prism carrier  204 , and a corresponding position sensor  228  may be positioned proximate the probe magnet  226 , such that the position sensor  228  is capable of sensing changes in the magnetic field(s) of the probe magnet  226 , e.g., as the probe magnet  226  moves together with the prism carrier  204 . In some embodiments, the position sensor(s)  228  may be attached to (or otherwise coupled with) the flex circuit  220 . The position sensor(s)  228  may be magnetic field sensors (e.g., Hall sensors, tunneling magnetoresistance (TMR) sensors, giant magnetoresistance (GMR) sensors, etc.) in various embodiments. According to some embodiments, the camera and/or the prism  200  may include a first probe magnet  226  and a first position sensor  228  to a first side of the prism  202 , and a second probe magnet  226  and a second position sensor  228  to a second side of the prism  202  that is opposite the first side of the prism  202 . Each of the probe magnets  226  may be attached to an underside of a respective vertical column portion (e.g., extending in the Z-axis direction) of the prism carrier  204 . An upper portion of the respective vertical column portion may define the pocket  224  for containing the viscoelastic material in some embodiments. 
     In some embodiments, the base structure  206  may include one or more end stop surfaces  230  that may limit the range of motion of the prism carrier  204  in one or more directions. In some examples, the limited range of motion may be designed to prevent the suspension spring arrangement from exceeding a flexion/deflection threshold associated with a maximum range of motion beyond which further flexion/deflection would jeopardize the structural integrity of the sheet spring(s)  212  and/or the suspension wire(s)  214 . 
       FIGS.  3 A and  3 B  illustrate views of an example spring suspension arrangement  300  that may be used in a camera (e.g., camera  100  in  FIG.  1   ) having a folded optics arrangement and/or a tilt actuator. The spring suspension arrangement  300  described herein with reference to  FIGS.  3 A- 3 B  may be the same as, or similar to, one or more of the spring suspension arrangements described herein with reference to  FIGS.  1 - 2 B  in various embodiments.  FIG.  3 A  shows a perspective view of the spring suspension arrangement  300 .  FIG.  3 B  shows a top view of the spring suspension arrangement  300 . The spring suspension arrangement  300  is shown in the context of a portion of a prism module. 
     In some embodiments, the spring suspension arrangement  300  may include one or more springs  302  and/or one or more wires  304 . The spring suspension arrangement  300  may comprise multiple portions that function in different manners. For example, a spring  302  may include a first spring portion  306 , a second spring portion  308 , and a third spring portion  310 . The first spring portion  306  may be attached to the prism carrier  204 . The second spring portion  308  may be attached to the base structure  206 . The third spring portion  310  may interconnect the first spring portion  306  with the second spring portion  308 . Furthermore, the third spring portion may extend, in a first direction parallel to the tilt axis (about which the actuator tilts the prism carrier  204 ), from the first spring portion  306  to the second spring portion  308 . In some embodiments, the first direction may be the Y-axis direction. 
     In some embodiments, a wire  304  may extend, in a second direction orthogonal to the first direction, from the spring  302  to a stationary structure of the camera. In some embodiments, the second direction may be the Z-axis direction. According to some embodiments, an upper portion of the wire  304  may be attached to the spring  302 , e.g., at or near the third spring portion  310 , at or near the first spring portion  306 , and/or at or near a junction between the first spring portion  306  and the third spring portion  310 . The wire  304  may extend downwards from the upper portion to a lower portion that is attached to the stationary structure. In some embodiments, the stationary structure may be part of the base structure  206 . In some embodiments, the stationary structure may be a component (e.g., a metallic tab) that is attached to the base structure  206 . 
     In some embodiments, the third spring portion  310  may be a torsion member that functions as the primary engagement element of the spring suspension arrangement  300  with respect to tilt motion about the Y-axis. According to some embodiments, the spring suspension arrangement  300  may be designed such that a range of motion is allowed via twisting of the third spring portion  310 . In some examples, the third spring portion  310  may be tuned to provide a limited range of motion. As a non-limiting example, the range of motion may be limited to about 2 degrees. The range of motion may be different in various embodiments. Furthermore, in some embodiments the tilt about the Y-axis may be considered the functional degree of freedom, and the spring suspension arrangement  300  may be designed to counteract motion in other degrees of freedom, such as translation (e.g., in X, Y, and Z) and/or tilt (e.g., about the X- and Z-axes). In some embodiments, the first spring portion  306  and the wire  304  may play the primary role in supporting the prism carrier  204  in the Z-axis direction, and/or counteracting motion of the prism carrier  204  in the Z-axis direction. Additionally, or alternatively, the second spring portion  308  may play the primary role in counteracting motion of the prism carrier  204  in directions parallel to the X-Y plane. According to some embodiments, the geometry (e.g., size, shape, bends, etc.) of different portions of the spring  302  may be independently tuned to achieve the desired modal performance. 
     In some embodiments, the first spring portion  306  may have a first end attached to a first portion of the prism carrier  204 , and a second end attached to a second portion of the prism carrier  204 , e.g., as indicated in  FIGS.  3 A- 3 B . Furthermore, the second spring portion  308  may have a first end attached to a first upper protrusion of the base structure  206  (e.g., proximate the attachment of the first end of the first spring portion  306  to the first portion of the prism carrier  204 ), and a second end attached to a second upper protrusion of the base structure  206  (e.g., proximate the attachment of the second end of the first spring portion  306  to the second portion of the prism carrier  204 ). 
       FIGS.  4 A- 4 D  illustrate views of an example spring suspension arrangement that may be used, for example, in a prism module having a prism that may be tilted via a tilt actuator, in accordance with some embodiments.  FIG.  4 A  shows a rest state  400   a  corresponding to the spring suspension arrangement  400   a  being in a rest position. In some examples, in the rest position may correspond to a position of the spring suspension arrangement when the prism  402  is not moving.  FIG.  4 B  shows a first deflection state  400   b  indicating deflection of the spring suspension arrangement when the prism  402  tilts, relative to the rest position, about a first axis (e.g., a Y-axis).  FIG.  4 C  shows a second deflection state  400   c  indicating deflection of the spring suspension arrangement when the prism  402  translates, relative to the rest position, in a first direction (e.g., a Z-axis direction).  FIG.  4 D  shows a third deflection state  400   d  indicating deflection of the spring suspension arrangement when the prism  402  translates, relative to the rest position, in a second direction (e.g., a Y-axis direction). 
       FIG.  5    illustrates a schematic representation of an example device  500  that may include a camera (e.g., camera  100  in  FIG.  1   ) having a folded optics arrangement with a tilt actuator and/or a spring suspension arrangement, e.g., as described herein with reference to  FIGS.  1 - 4 D . In some embodiments, the device  500  may be a mobile device and/or a multifunction device. In various embodiments, the device  500  may be any of various types of devices, including, but not limited to, a personal computer system, desktop computer, laptop, notebook, tablet, slate, pad, or netbook computer, mainframe computer system, handheld computer, workstation, network computer, a camera, a set top box, a mobile device, an augmented reality (AR) and/or virtual reality (VR) headset, a consumer device, video game console, handheld video game device, application server, storage device, a television, a video recording device, a peripheral device such as a switch, modem, router, or in general any type of computing or electronic device. 
     In some embodiments, the device  500  may include a display system  502  (e.g., comprising a display and/or a touch-sensitive surface) and/or one or more cameras  504 . In some non-limiting embodiments, the display system  502  and/or one or more front-facing cameras  504   a  may be provided at a front side of the device  500 , e.g., as indicated in  FIG.  5   . Additionally, or alternatively, one or more rear-facing cameras  504   b  may be provided at a rear side of the device  500 . In some embodiments comprising multiple cameras  504 , some or all of the cameras may be the same as, or similar to, each other. Additionally, or alternatively, some or all of the cameras may be different from each other. In various embodiments, the location(s) and/or arrangement(s) of the camera(s)  504  may be different than those indicated in  FIG.  5   . 
     Among other things, the device  500  may include memory  506  (e.g., comprising an operating system  508  and/or application(s)/program instructions  510 ), one or more processors and/or controllers  512  (e.g., comprising CPU(s), memory controller(s), display controller(s), and/or camera controller(s), etc.), and/or one or more sensors  516  (e.g., orientation sensor(s), proximity sensor(s), and/or position sensor(s), etc.). In some embodiments, the device  500  may communicate with one or more other devices and/or services, such as computing device(s)  518 , cloud service(s)  520 , etc., via one or more networks  522 . For example, the device  500  may include a network interface (e.g., network interface  610 ) that enables the device  500  to transmit data to, and receive data from, the network(s)  522 . Additionally, or alternatively, the device  500  may be capable of communicating with other devices via wireless communication using any of a variety of communications standards, protocols, and/or technologies. 
       FIG.  6    illustrates a schematic block diagram of an example computing device, referred to as computer system  600 , that may include or host embodiments of a camera having a sensor shift actuator and/or a suspension arrangement, e.g., as described herein with reference to  FIGS.  1 - 5   . In addition, computer system  600  may implement methods for controlling operations of the camera and/or for performing image processing images captured with the camera. In some embodiments, the device  500  (described herein with reference to  FIG.  5   ) may additionally, or alternatively, include some or all of the functional components of the computer system  600  described herein. 
     The computer system  600  may be configured to execute any or all of the embodiments described above. In different embodiments, computer system  600  may be any of various types of devices, including, but not limited to, a personal computer system, desktop computer, laptop, notebook, tablet, slate, pad, or netbook computer, mainframe computer system, handheld computer, workstation, network computer, a camera, a set top box, a mobile device, an augmented reality (AR) and/or virtual reality (VR) headset, a consumer device, video game console, handheld video game device, application server, storage device, a television, a video recording device, a peripheral device such as a switch, modem, router, or in general any type of computing or electronic device. 
     In the illustrated embodiment, computer system  600  includes one or more processors  602  coupled to a system memory  604  via an input/output (I/O) interface  606 . Computer system  600  further includes one or more cameras  608  coupled to the I/O interface  606 . Computer system  600  further includes a network interface  610  coupled to I/O interface  606 , and one or more input/output devices  612 , such as cursor control device  614 , keyboard  616 , and display(s)  618 . In some cases, it is contemplated that embodiments may be implemented using a single instance of computer system  600 , while in other embodiments multiple such systems, or multiple nodes making up computer system  600 , may be configured to host different portions or instances of embodiments. For example, in one embodiment some elements may be implemented via one or more nodes of computer system  600  that are distinct from those nodes implementing other elements. 
     In various embodiments, computer system  600  may be a uniprocessor system including one processor  602 , or a multiprocessor system including several processors  602  (e.g., two, four, eight, or another suitable number). Processors  602  may be any suitable processor capable of executing instructions. For example, in various embodiments processors  602  may be general-purpose or embedded processors implementing any of a variety of instruction set architectures (ISAs), such as the x86, PowerPC, SPARC, or MIPS ISAs, or any other suitable ISA. In multiprocessor systems, each of processors  602  may commonly, but not necessarily, implement the same ISA. 
     System memory  604  may be configured to store program instructions  620  accessible by processor  602 . In various embodiments, system memory  604  may be implemented using any suitable memory technology, such as static random access memory (SRAM), synchronous dynamic RAM (SDRAM), nonvolatile/Flash-type memory, or any other type of memory. Additionally, existing camera control data  622  of memory  604  may include any of the information or data structures described above. In some embodiments, program instructions  620  and/or data  622  may be received, sent or stored upon different types of computer-accessible media or on similar media separate from system memory  604  or computer system  600 . In various embodiments, some or all of the functionality described herein may be implemented via such a computer system  600 . 
     In one embodiment, I/O interface  606  may be configured to coordinate I/O traffic between processor  602 , system memory  604 , and any peripheral devices in the device, including network interface  610  or other peripheral interfaces, such as input/output devices  612 . In some embodiments, I/O interface  606  may perform any necessary protocol, timing or other data transformations to convert data signals from one component (e.g., system memory  604 ) into a format suitable for use by another component (e.g., processor  602 ). In some embodiments, I/O interface  606  may include support for devices attached through various types of peripheral buses, such as a variant of the Peripheral Component Interconnect (PCI) bus standard or the Universal Serial Bus (USB) standard, for example. In some embodiments, the function of I/O interface  606  may be split into two or more separate components, such as a north bridge and a south bridge, for example. Also, in some embodiments some or all of the functionality of I/O interface  606 , such as an interface to system memory  604 , may be incorporated directly into processor  602 . 
     Network interface  610  may be configured to allow data to be exchanged between computer system  600  and other devices attached to a network  624  (e.g., carrier or agent devices) or between nodes of computer system  600 . Network  624  may in various embodiments include one or more networks including but not limited to Local Area Networks (LANs) (e.g., an Ethernet or corporate network), Wide Area Networks (WANs) (e.g., the Internet), wireless data networks, some other electronic data network, or some combination thereof. In various embodiments, network interface  610  may support communication via wired or wireless general data networks, such as any suitable type of Ethernet network, for example; via telecommunications/telephony networks such as analog voice networks or digital fiber communications networks; via storage area networks such as Fibre Channel SANs, or via any other suitable type of network and/or protocol. 
     Input/output devices  612  may, in some embodiments, include one or more display terminals, keyboards, keypads, touchpads, scanning devices, voice or optical recognition devices, or any other devices suitable for entering or accessing data by one or more computer systems  600 . Multiple input/output devices  612  may be present in computer system  600  or may be distributed on various nodes of computer system  600 . In some embodiments, similar input/output devices may be separate from computer system  600  and may interact with one or more nodes of computer system  600  through a wired or wireless connection, such as over network interface  610 . 
     Those skilled in the art will appreciate that computer system  600  is merely illustrative and is not intended to limit the scope of embodiments. In particular, the computer system and devices may include any combination of hardware or software that can perform the indicated functions, including computers, network devices, Internet appliances, PDAs, wireless phones, pagers, etc. Computer system  600  may also be connected to other devices that are not illustrated, or instead may operate as a stand-alone system. In addition, the functionality provided by the illustrated components may in some embodiments be combined in fewer components or distributed in additional components. Similarly, in some embodiments, the functionality of some of the illustrated components may not be provided and/or other additional functionality may be available. 
     Those skilled in the art will also appreciate that, while various items are illustrated as being stored in memory or on storage while being used, these items or portions of them may be transferred between memory and other storage devices for purposes of memory management and data integrity. Alternatively, in other embodiments some or all of the software components may execute in memory on another device and communicate with the illustrated computer system via inter-computer communication. Some or all of the system components or data structures may also be stored (e.g., as instructions or structured data) on a computer-accessible medium or a portable article to be read by an appropriate drive, various examples of which are described above. In some embodiments, instructions stored on a computer-accessible medium separate from computer system  600  may be transmitted to computer system  600  via transmission media or signals such as electrical, electromagnetic, or digital signals, conveyed via a communication medium such as a network and/or a wireless link. Various embodiments may further include receiving, sending or storing instructions and/or data implemented in accordance with the foregoing description upon a computer-accessible medium. Generally speaking, a computer-accessible medium may include a non-transitory, computer-readable storage medium or memory medium such as magnetic or optical media, e.g., disk or DVD/CD-ROM, volatile or non-volatile media such as RAM (e.g. SDRAM, DDR, RDRAM, SRAM, etc.), ROM, etc. In some embodiments, a computer-accessible medium may include transmission media or signals such as electrical, electromagnetic, or digital signals, conveyed via a communication medium such as network and/or a wireless link. 
     The methods described herein may be implemented in software, hardware, or a combination thereof, in different embodiments. In addition, the order of the blocks of the methods may be changed, and various elements may be added, reordered, combined, omitted, modified, etc. Various modifications and changes may be made as would be obvious to a person skilled in the art having the benefit of this disclosure. The various embodiments described herein are meant to be illustrative and not limiting. Many variations, modifications, additions, and improvements are possible. Accordingly, plural instances may be provided for components described herein as a single instance. Boundaries between various components, operations and data stores are somewhat arbitrary, and particular operations are illustrated in the context of specific illustrative configurations. Other allocations of functionality are envisioned and may fall within the scope of claims that follow. Finally, structures and functionality presented as discrete components in the example configurations may be implemented as a combined structure or component. These and other variations, modifications, additions, and improvements may fall within the scope of embodiments as defined in the claims that follow.

Metadata:
Filing Date: 20210820
Publication Date: 20241008
Grant Date: 20241008
Priority Date: 20200827
Inventors: MILLER, SCOTT W.
MIREAULT, ALFRED N.
LIU, Junwei
ZHENG, HAO
Assignee: APPLE INC
CPC Classifications: [{"code": "G02B7/1805", "inventive": true, "first": false, "tree": "[]"}, {"code": "G03B30/00", "inventive": true, "first": false, "tree": "[]"}, {"code": "G03B2205/0023", "inventive": false, "first": false, "tree": "[]"}, {"code": "H04N23/686", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N23/55", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N23/54", "inventive": true, "first": false, "tree": "[]"}, {"code": "G03B2205/0069", "inventive": false, "first": false, "tree": "[]"}, {"code": "G02B27/646", "inventive": true, "first": false, "tree": "[]"}, {"code": "G03B2205/0015", "inventive": false, "first": false, "tree": "[]"}, {"code": "G03B5/00", "inventive": true, "first": false, "tree": "[]"}, {"code": "G03B3/10", "inventive": true, "first": false, "tree": "[]"}, {"code": "G03B17/17", "inventive": true, "first": false, "tree": "[]"}, {"code": "G03B13/36", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N23/686", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N23/55", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N23/54", "inventive": true, "first": false, "tree": "[]"}, {"code": "G03B2205/0023", "inventive": false, "first": false, "tree": "[]"}, {"code": "G03B2205/0069", "inventive": false, "first": false, "tree": "[]"}, {"code": "G03B30/00", "inventive": true, "first": false, "tree": "[]"}, {"code": "G03B17/17", "inventive": true, "first": false, "tree": "[]"}, {"code": "G03B3/10", "inventive": true, "first": false, "tree": "[]"}, {"code": "G03B5/00", "inventive": true, "first": false, "tree": "[]"}, {"code": "G02B27/646", "inventive": true, "first": false, "tree": "[]"}, {"code": "G03B30/00", "inventive": true, "first": false, "tree": "[]"}, {"code": "G02B7/1805", "inventive": true, "first": false, "tree": "[]"}, {"code": "G02B27/646", "inventive": true, "first": false, "tree": "[]"}, {"code": "G02B13/0065", "inventive": true, "first": true, "tree": "[]"}, {"code": "G02B13/0065", "inventive": true, "first": true, "tree": "[]"}, {"code": "G03B5/00", "inventive": true, "first": true, "tree": "[]"}, {"code": "G03B2205/0069", "inventive": false, "first": false, "tree": "[]"}, {"code": "G03B2205/0023", "inventive": false, "first": false, "tree": "[]"}, {"code": "G03B2205/0015", "inventive": false, "first": false, "tree": "[]"}, {"code": "H04N23/686", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N23/55", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N23/54", "inventive": true, "first": false, "tree": "[]"}, {"code": "G03B30/00", "inventive": true, "first": false, "tree": "[]"}, {"code": "G03B17/17", "inventive": true, "first": false, "tree": "[]"}, {"code": "G03B13/36", "inventive": true, "first": false, "tree": "[]"}, {"code": "G03B5/00", "inventive": true, "first": false, "tree": "[]"}, {"code": "G03B3/10", "inventive": true, "first": false, "tree": "[]"}, {"code": "G02B27/646", "inventive": true, "first": false, "tree": "[]"}, {"code": "G02B7/1805", "inventive": true, "first": false, "tree": "[]"}, {"code": "G02B13/0065", "inventive": true, "first": true, "tree": "[]"}]
Family ID: 80356559