TW202041913A - Optical imaging apparatus with adjustable focal length - Google Patents

Abstract

The present disclosure provides an optical imaging apparatus with adjustable focal length, and the optical imaging apparatus includes a lens group and an image sensing component. The lens group includes a stabilization component and a focusing component. The stabilization component has an optical axis, and the stabilization component includes a first optical lens group and a driving element. The driving element is used to drive the first optical lens group to move on a plane perpendicular to the optical axis or to rotate around the optical axis. The focusing component is fixed to the stabilization component, and the focusing component includes a second optical lens group. The second optical lens group is aligned to the optical axis. The image sensing component is fixed to one end of the lens group, and the image sensing component is aligned to the optical axis.

Description

Focusable imaging device

This case is about an imaging device that can be used for photography and video recording. Especially it relates to a focusable imaging device.

Most mobile devices such as mobile phones or tablets are equipped with focusable imaging devices, and the focusable imaging devices can be used for taking pictures or photography. In addition to the aforementioned equipment, the focusable imaging device can also be applied to equipment with camera requirements such as notebook computers, drones, surveillance systems, displays, and cameras.

With the increasing demands of consumers for the camera function of camera equipment, it is hoped that the focusable imaging device in mobile equipment can have better imaging effects.

In view of the foregoing requirements, according to some embodiments of the present application, the present application provides a focusable imaging device, which has an optical image stabilization (OIS) function through a plurality of specific lens structures, so as to meet higher specifications of mobile devices The demand.

According to some embodiments, the present application provides a focusable imaging device including a lens group and an image sensing component. Among them, the lens group includes anti-vibration components and focusing components. The shockproof component has an optical axis, and the shockproof component includes a first optical lens group and a driving element. The driving element is used to drive the first optical lens group to move on a plane perpendicular to the optical axis or to rotate around the optical axis. The focusing component is fixed to the anti-vibration component, and the focusing component includes a second optical lens group, and the second optical lens group is aligned with the optical axis. The image sensing component is fixed at one end of the lens group and aligned with the optical axis.

According to some embodiments of the present application, the focusable imaging device further includes an optical path changing element, which is disposed at an end of the lens group away from the image sensing component, and the optical path changing element is used to change the imaging direction of the focusable imaging device.

According to some embodiments of the present case, the optical path changing element is a reflective sheet, and the included angle between the reflective sheet and the imaging direction is substantially the same as the included angle between the optical axis and the reflective sheet.

According to some embodiments of the present case, the light path changing element is a beam, the beam has a light incident surface and a light output surface, the light incident surface is perpendicular to the image capturing direction, and the light exit surface is perpendicular to the optical axis.

According to some embodiments of the present application, the focusable imaging device further includes an assembly housing, and the light path changing element and the shockproof component are disposed in the assembly housing.

According to some embodiments of the present case, the second optical lens group is a movable optical lens group, and the focusing assembly further includes an actuating element, the movable optical lens group is disposed in the actuating element, and the actuating element is used to actuate the movable optical lens group At least one movable optical lens moves along the optical axis.

According to some embodiments of the present case, the second optical lens group is a fixed optical lens group.

According to some embodiments of the present case, the driving element is also used to drive the first optical lens group to move along the optical axis.

According to some embodiments of the present case, the focusing assembly further includes an actuating element, a third optical lens group, and a frame body, the second optical lens group is a movable optical lens group, the movable optical lens group is disposed in the actuating element, and the actuating element Used to actuate at least one movable optical lens in the movable optical lens group to move along the optical axis, the third optical lens group is aligned with the optical axis and is a fixed optical lens group, the fixed optical lens group is fixed to the frame, and the frame is fixed to the actuator Moving components.

According to some embodiments of the present case, the size of each lens in the movable optical lens group is smaller than the size of each lens in the fixed optical lens group.

According to some embodiments of the present case, the movable optical lens group and the fixed optical lens group are arranged in a single housing.

According to some embodiments of this case, the focusing component is located between the anti-vibration component and the image sensing component.

According to some embodiments of this case, the anti-vibration component is located between the focusing component and the image sensing component.

According to some embodiments of the present case, the image sensing component includes an image sensor, a filter, and a fixing frame. The image sensor and the filter are fixed to the fixing frame, and the filter is used to filter the image sensor along the optical axis. The light of the device.

Various embodiments are presented below for detailed description. However, the embodiments are only used as examples for description, and are not intended to limit the scope of the present invention. In addition, some components are omitted from the drawings in the embodiment to clearly show the technical features of the present case.

Please refer to FIG. 1A. FIG. 1A is a schematic structural diagram of a focusable imaging device 200 drawn according to some embodiments. In some embodiments, the focusable imaging device 200 includes a lens group and an image sensing component 250, the image sensing component 250 is fixed at one end of the lens group, and the lens group and the image sensing component 250 can be aligned along the optical axis L (That is, the optical axis of the lens group passes through the central area of the image sensing component 250). The lens group may include at least two groups of lens groups. The lens grouping means that a plurality of lenses will be divided into different groups based on function, structure, size, weight or other characteristics. The lenses of each group are arranged in their respective accommodating/fixing structures. The accommodating/fixing structure The fixing structure may be a lens barrel, a housing, a substrate, etc.; or the accommodating/fixing structure is a part of a driving element or an actuating element such as a motor. In this embodiment, the lens group includes a focusing assembly 210 and an anti-vibration assembly 220. In some embodiments, the anti-vibration component 220 includes a first optical lens group, and the focusing component 210 includes a second optical lens group that can be used for focusing. Among them, the first optical lens group is a shock-proof optical lens group that can be used for anti-shock, and the second optical lens group is a movable optical lens group that can be used for autofocus (AF) or can be used for fixed-focus (Fixed-focus, FF) fixed optical lens group. In some embodiments, the focusing assembly 210 may include two lens groups, such as a second optical lens group and a third optical lens group. The second optical lens group is a movable optical lens group that can be used for automatic focusing (AF), and the third optical lens group can be used for a fixed optical lens group that can be used for fixed focus (FF). The respective optical axes of each lens group in the lens group can be aligned with each other. For example, the optical axis of the first optical lens group in the anti-vibration assembly 220 is the same as the optical axis of the second optical lens group in the focusing assembly 210. The axes coincide. At this time, it can also be said that the second optical lens group is aligned with the optical axis of the first optical lens group.

In some embodiments, the focusable imaging device 200 can be applied to devices with camera functions such as smart phones, tablet computers, notebook computers, displays, or stand-alone cameras and aerial cameras. In some embodiments, the anti-vibration component 220, the focusing component 210, and the image sensing component 250 are arranged in this order, that is, the focusing component 210 is located between the anti-vibration component 220 and the image sensing component 250. For example, in the embodiment shown in FIG. 1A, when the light travels along the image capturing direction C on the optical axis L, it passes through the anti-vibration component 220 and the focusing component 210 in sequence and is projected to the image sensing component 250. In addition, the positions of the anti-vibration component 220, the focusing component 210, and the image sensing component 250 are relative to each other. In other embodiments, the focusing component 210, the anti-vibration component 220, and the image sensing component 250 can also be arranged in this order, that is, the anti-vibration component 220 is located between the focusing component 210 and the image sensing component 250. Generally speaking, the back focal length (BFL) of the optical lens group is considered, that is, the distance from the last lens of the optical lens group to the image sensing), and the telephoto lens usually has a longer back focal length. Therefore, in some embodiments, when the anti-vibration component 220 is located between the focusing component 210 and the image sensing component 250 and the length of the anti-vibration component 220 allows, the anti-vibration component 220 uses the space of the rear focal length of the focusing component 210 to set , So as to achieve better space utilization. However, regardless of the arrangement order of the components through which the light passes, all the light paths are finally imaged on the image sensing component 250 (which is located at the last end of the light path).

The focusing assembly 210 may include a plurality of optical lenses (sometimes abbreviated as lenses at the back), an actuating element 216, and a frame 218. The optical lens is arranged along the optical axis L to take images in the imaging direction C (which can also be regarded as the entry direction of the light of the subject along the optical axis L), and forms images on the imaging surface I. In this embodiment, the focusing assembly 210 includes a second optical lens group and a third optical lens group, that is, the plurality of optical lens regions can be divided into a second optical lens group and a third optical lens group, wherein the third optical lens group The optical lens group is a fixed optical lens group 214, and the second optical lens group is a movable optical lens group 212 (note that the number of lenses in each group is not limited to the number shown in FIG. 1A). The actuation element 216 and the frame body 218 are relatively immobile. In some embodiments, the actuation element 216 is directly fixed to the frame body 218. The fixed optical lens group 214 is fixed to the frame 218, and the movable optical lens group 212 is fixed to the actuating element 216 and can be driven by the actuating element 216 to move relative to the fixed optical lens group 214. Specifically, the actuating element 216 actuates the movable optical lens group 212 to move the movable optical lens group 212 back and forth along the optical axis L, so as to focus and image the object image on the imaging surface I.

In some embodiments, the focusing assembly 210 only has a tube-shaped housing (or barrel, barrel). Generally speaking, only one or more lenses are provided in the lens barrel, and no actuating element is provided. In this case, the fixed optical lens group 214 is fixed on the inner wall of the lens barrel. At this time, the lens barrel is the frame body 218, and the movable optical lens group 212 is movably arranged in the actuating element 216. This structure is used for simplicity The number of components to be assembled can make the overall assembly more convenient. In some embodiments, the movable optical lens group 212 and the fixed optical lens group 214 are respectively arranged in their corresponding lens barrels, and the lens barrel of the movable optical lens group 212 is arranged in the actuating element 216. In some embodiments, the frame 218 is a lens barrel for accommodating and fixing the optical lens group 214, and the frame 218 and the housing part of the actuating element 216 are connected to each other.

In some embodiments, the optical lens grouping is to group lighter optical lenses into the movable optical lens group 212. In this way, the driving force requirement of the corresponding actuating element 216 can be lower. The overall size can also be reduced. In some embodiments, the size (for example, lens diameter) of multiple optical lenses in a long focal length (telephoto) optical lens group will be sequentially reduced, so that the optical lens at the imaging end will have a smaller weight; The optical lens near the imaging end can be selected as the movable optical lens group 212, that is, the movable optical lens group 212 is located between the fixed optical lens group 214 and the imaging plane I, and the weight of any lens in the movable optical lens group 212 (or The size) is smaller than the weight (or size) of any lens in the fixed optical lens group 214. In some embodiments, the weight of at least one lens in the movable optical lens group 212 is smaller than that of the lens in the fixed optical lens group 214. It should be understood that the selection method of this movable optical lens group 212 is only one of the options, and the grouping of optical lenses can also be the opposite. That is, in some embodiments, the optical lens closer to the imaging end has a larger The weight, or the weight of at least one lens in the movable optical lens group 212 is greater than the weight of the lens in the fixed optical lens group 214, or the weight of any lens in the movable optical lens group 212 is greater than any lens in the fixed optical lens group 214.

Please continue to refer to Figure 1A. The anti-vibration component 220 includes a first optical lens group and a driving element 226. In this embodiment, the first optical lens group is a shockproof optical lens group 222, the shockproof optical lens group 222 is fixed to the driving element 226, and the driving element 226 drives the shockproof optical lens group 222 to move. In some embodiments, the driving element 226 can drive the lenses in the shockproof optical lens group 222 to shift on a plane perpendicular to the optical axis L or to rotate around the optical axis L as the center. In some embodiments, the shock-proof optical lens group 222 includes a plurality of wedge-shaped lenses (Wedge Prism, the lens section of which is a trapezoid), and the driving element 226 drives the shock-proof optical lens group 222 to rotate for hand shake compensation, that is, the shock-proof component 220 can With OIS function. In this embodiment, the anti-vibration component 220 and the focusing component 210 are divided into different lens groups. Thereby, the driving element 226 and the actuating element 216 correspond to the anti-vibration assembly 220 and the focusing assembly 210 respectively, so that the respective structures of the driving element 226 and the actuating element 216 can be simplified.

In the embodiment shown in FIG. 1A, the multiple wedge lenses of the shock-proof optical lens group 222 can change the optical path of the incident light through relative rotation, and compensate the optical path displacement caused by vibration, so that the optical path can be continuously aligned with the optical axis L to Achieve OIS function. In some embodiments, the shockproof optical lens group 222 includes a lens group that can change the optical path. For example, the refractive index of each area on one or more lenses in the lens group that can change the optical path may be different, and the driving element 226 can drive all the lenses. Said one or more lenses translate on a plane orthogonal to the optical axis L or rotate around the optical axis L, so that the specific regions of the one or more lenses with different refractive indices will be aligned in the direction of the optical axis L, by The optical path is changed by passing the light path through areas with different refractive indexes to compensate for the displacement of the light path caused by vibration, so that the light path can be continuously aligned with the optical axis L to achieve the OIS function.

The aforementioned optical lens may be a liquid crystal lens (Liquid Crystal Lens), a liquid lens (Liquid Lens), a T-shaped lens (T Lens), and the like. The liquid lens may be a rotating liquid lens, a hydrophobic liquid lens (Hydrophobic liquid lens), and a hydraulic liquid lens.

In some embodiments, the anti-vibration component 220 further includes a sensor and a controller. The sensor detects the movement or vibration of the focusable imaging device 200, and the controller drives and drives according to the movement or vibration signal returned by the sensor. The element 226 performs hand shake compensation. In some embodiments, the sensor and the controller and the anti-vibration component 220 may be configured as the same component. In some embodiments, the sensor and the controller are not configured as the same component as the anti-vibration component 220. The sensor and the controller can be arranged on a substrate other than the focusable imaging device 200, and are electrically connected to the anti-vibration component 220 through a circuit on the substrate and/or a flexible circuit board.

Please continue to refer to Figure 1A. The image sensor assembly 250 includes an image sensor 252, a filter 254, and a fixing frame 256. The image sensor 252 is also electrically connected to the circuit board (not shown in FIG. 1A). In some embodiments, the image sensor 252 and the filter 254 are fixed on the fixing frame 256. In some embodiments, the filter 254 can also be directly fixed on the image sensor 252, for example, the filter 254 can be glued to the image sensor 252. As long as the light of the subject passes through the filter 254 first, and then reaches the image sensor 252.

The filter 254 is used to filter the light entering the image sensor 252. Specifically, the filter 254 allows the light to be imaged on the image sensor 252 to pass, while the remaining light does not pass. For example, when the focusable imaging device 200 is applied to shooting portraits or landscapes, the filter 254 allows visible light to pass (for example, light with a wavelength of 380 nm to 780 nm), and the rest of the light does not pass. In some embodiments, the filter 254 may be blue glass, an infrared filter (IR Filter, Infrared filter), or an infrared ultraviolet filter (UV-IR cut filter). When the focusable imaging device 200 is applied to an infrared night vision device, the filter 254 may be a filter that allows infrared rays to pass through, and other light does not pass.

As mentioned above, the anti-vibration component 220, the focusing component 210, and the image sensing component 250 are arranged in sequence and relatively immobile. In the embodiment shown in FIG. 1A, the fixing frame 256 is fixed to the actuating element 216, the actuating element 216 is fixed to the frame 218, and the frame 218 is fixed to the driving element 226. In some embodiments, the focusable imaging device 200 has a main housing, and the fixing frame 256, the actuating element 216, the frame 218, and the driving element 226 are respectively fixed in the main housing, so that the anti-vibration assembly 220 and the focusing assembly 210 and the image sensing component 250 are relatively stationary. In some embodiments, the fixing frame 256, the actuating element 216, the frame 218, and the driving element 226 are fixed on the substrate. In some embodiments, the focusing assembly 210 only includes the fixed optical lens group 214, the frame 218 of the fixed optical lens group 214 can be fixed on the substrate, and the anti-vibration component 220 can be connected to the frame 218, and the anti-vibration component 220 can be not fixed to the substrate. In some embodiments, the focusing assembly 210 may only include the movable optical lens group 212, the movable optical lens group 212 is disposed in the actuating element 216, and the actuating element 216 may be fixed on the substrate, the anti-vibration element 220 and the image sensing element 250 can be connected to the actuating element 216 without being fixed to the substrate. In some embodiments, the focusing assembly 210 includes a movable optical lens group 212 and a fixed optical lens group 214. The frame 218 of the fixed optical lens group 214 can be fixed on the substrate, and the anti-vibration assembly 220 and the actuating element 216 can be connected to the frame. 218.

The actuating element 216 and the driving element 226 can be a voice coil motor (VCM), a shape memory alloy (SMA), a piezoelectric motor (Piezo), or a stepper motor. Taking the actuation element 216 as a voice coil motor as an example, the number of coils in the voice coil motor can be configured according to requirements, so that the movable optical lens group 212 can move along the optical axis L uniaxially for focusing.

In some embodiments, as shown in FIGS. 1B to 1D, the anti-vibration component 220 may be disposed between the focusing component 210 and the image sensing component 250. That is, when advancing along the image capturing direction C on the optical axis L as shown in FIG. 1B, it will sequentially pass through the focusing component 210 and the anti-vibration component 220 and project to the image sensing component 250. The positions of the focusing component 210, the anti-vibration component 220, and the image sensing component 250 among each other are still relatively stationary when the movable optical lens group 212 moves. For example, the driving element 226 in the anti-vibration assembly 220 can be indirectly fixed to the actuating element 216, and the fixing frame 256 of the image sensor assembly 250 is fixed to the driving element 226. Alternatively, when the focusing assembly 210 has a barrel-shaped housing (Barrel), for example, the fixed optical lens group 214 is fixed in the inner wall of the barrel-shaped housing (for example, the frame 218), the driving element 226 in the shockproof assembly 220 can be fixed In a sleeve-shaped housing (such as frame 218).

In some embodiments, as shown in FIG. 1B or FIG. 1C, the anti-vibration component 220 can be disposed between the focusing component 210 and the image sensing component 250, and the focusing component 210 has a fixed optical lens group 214 and a frame 218, and The movable optical lens group 212 and the actuating element 216. In some embodiments, as shown in FIG. 1B, in the focusing assembly 210, the fixed optical lens group 214 is closer to the image sensor assembly 250 than the movable optical lens group 212. At this time, the driving element 226 in the shockproof assembly 220 can be fixed to the sleeve-shaped housing (for example, the frame 218). In other embodiments, as shown in FIG. 1C, in the focusing assembly 210, the fixed optical lens group 214 is farther away from the image sensor assembly 250 than the movable optical lens group 212. At this time, the driving element 226 in the anti-vibration assembly 220 can be fixed to the actuating element 216.

In some embodiments, as shown in FIG. 1D, the anti-vibration component 220 may be disposed between the focusing component 210 and the image sensing component 250, and the focusing component 210 only includes the fixed optical lens group 214 and the frame 218, that is, The focusing assembly 210 itself does not have an automatic focusing (AF) function. In this case, the driving element 226 of the anti-vibration assembly 220 can also drive one or more lenses in the first optical lens group to move along the optical axis L, in other words In other words, in addition to the OIS function, the anti-vibration component 220 also has an AF function. Similarly, in some embodiments, the focusing assembly 210 can be disposed between the anti-vibration assembly 220 and the image sensing assembly 250, and the focusing assembly 210 only includes the fixed optical lens group 214 and the frame 218. In this case, the anti-vibration assembly The driving element 226 of 220 can also drive one or more lenses in the first optical lens group to move along the optical axis L to achieve the AF function. However, it should be understood that, in some embodiments, when the focusing assembly 210 has the movable optical lens group 212 and the actuating element 216, the driving element 226 of the anti-vibration assembly 220 can still drive one or the first optical lens group. The multiple lenses move along the optical axis L and can cooperate with the movable optical lens group 212. In some embodiments, neither the focusing component 210 nor the anti-vibration component 220 may have an auto focus (AF) function, that is, the focusable imaging device 200 is a fixed focus (FF) imaging device with OIS function.

In some embodiments, the anti-vibration component 220, the focusing component 210, and the image sensing component 250 are each a single component, which makes assembly and disassembly more convenient; in material management, the management of each component is more flexible.

Therefore, in the embodiments shown in FIG. 1A to FIG. 1D, the focusable imaging device 200 can have telephoto and/or anti-shake functions, which can meet the requirements of high-standard mobile devices. In addition, based on the proper configuration of the fixed optical lens group 214 and the movable optical lens group 212, the overall weight is reduced, which conforms to the trend of thinner and lighter weight.

In some embodiments, the focusing assembly 210 of the focusable imaging device 200 may also only include the movable optical lens group 212 and the actuating element 216 (refer to FIG. 3B). In this way, the overall volume and weight of the focusable imaging device 200 are reduced. The length along the optical axis L is also shortened, so that the mobile device equipped with the focusable imaging device 200 can better meet the needs of thinning. When the focusing assembly 210 has a housing, only the movable optical lens group 212 and the actuating element 216 may be in the housing, and the fixed optical lens group 214 may not be in the housing.

In some embodiments, the focus assembly 210 of the focusable imaging device 200 may also only include the fixed optical lens group 214, which can also reduce the overall weight and meet the requirements for thinning. That is, in some embodiments, when the focusing assembly 210 has a housing, only the fixed optical lens group 214 may be fixed to the housing without the movable optical lens group 212 and the actuating element 216 in the housing. In this case, the driving element 226 of the anti-vibration assembly 220 can also drive one or more lenses in the first optical lens group to move along the optical axis L to achieve the AF function.

Please refer to FIG. 2. FIG. 2 is a schematic structural diagram of a focusable imaging device drawn according to some embodiments. The focusable imaging device 200 includes an image sensing component 250, a lens group and an optical path changing element 280, and the lens group includes a focusing component 210 and a shockproof component 220. The light path changing element 280 is disposed at the other end of the lens group away from the image sensing assembly 250, and the light path changing element 280 is used to change the imaging direction of the focusable imaging device 200. The light path changing element 280 can be combined with the focusable imaging device 200 of any of the foregoing embodiments. In this embodiment, the light path changing element 280, the anti-vibration element 220, the focusing element 210, and the image sensing element 250 are arranged in sequence. In some embodiments, the light path changing element 280, the focusing assembly 210, the anti-vibration assembly 220, and the image sensing assembly 250 may be arranged in the order, that is, the anti-vibration assembly 220 is located between the focusing assembly 210 and the image sensing assembly 250.

The optical path changing element 280 is located in the imaging direction C of the plurality of optical lenses, and is used to change the light traveling along the actual imaging direction C'to the imaging direction C. That is, the focusable imaging device 200 can be configured as a periscope structure, so that the imaging direction C of the plurality of optical lenses does not need to be arranged along the thickness direction of the electronic device, which is beneficial to the application of the focusable imaging device 200 in thin and light electronic devices. In the installation. In this embodiment, the optical path changing element 280 is fixed, and the OIS function can be achieved only by the shockproof component 220, so that the structure of the optical path changing element 280 can be further simplified. In other embodiments, the light path changing element 280 may also be movable, and cooperate with the anti-vibration component 220 to jointly produce the OIS function. For example, the optical path changing element 280 cooperates with the anti-vibration component 220 to jointly produce the OIS function in different axial directions.

In the embodiment shown in FIG. 2, the optical path changing element 280 is a reflective sheet and forms an angle θ with the imaging direction C. The angle between the imaging direction C and the reflector, and the angle θ'between the actual imaging direction C'and the reflector are substantially the same, so that the light from the actual imaging direction C'can be changed after reflection From the direction to the imaging direction C, it passes through the anti-vibration optical lens group 222, the fixed optical lens group 214, the movable optical lens group 212, and the filter 254 in order to form an image on the image sensor 252.

In some embodiments, the light path changing element 280 is a beam (as shown in FIGS. 3A and 3B). The beam has a light-incident surface 282 and a light-emitting surface 284, and the light-incident surface 282 faces the actual imaging direction C ′, the light-emitting surface 284 faces the shock-proof optical lens group 222, and there is an angle between the light-incident surface 282 and the light-emitting surface 284 to change the light traveling along the actual imaging direction C′ to the imaging direction C. In some embodiments, the light-emitting surface 284 is perpendicular to the optical axis L.

Please refer to FIGS. 3A and 3B at the same time. FIGS. 3A and 3B are schematic diagrams of a focusable imaging device drawn according to some embodiments. 3A and 3B show similar embodiments. The focusable imaging device 200 includes an image sensing component 250, a focusing component 210, an anti-vibration component 220, and an optical path changing element 280. The focusing assembly 210 includes a movable optical lens group 212 and an actuation element 216. The shockproof component 220 includes a shockproof optical lens group 222 and a driving element 226. Among them, the light path changing element 280, the anti-vibration component 220, the focusing component 210, and the image sensing component 250 are arranged in sequence and relatively fixed.

In the embodiment shown in FIG. 3A, the anti-vibration component 220 may include a lens barrel 227 in which a shock-proof optical lens group 222 is disposed, and the lens barrel 227 may be disposed in the driving element 226. In these embodiments, the actuating element 216 of the focusing assembly 210 can be fixed on the driving element 226. In the embodiment shown in FIG. 3B, the anti-vibration component 220 does not have the lens barrel 227.

In some embodiments, the focusing component 210 and the image sensing component 250 are fixed to each other by an adhesive (Adhesive). In some embodiments, the adhesive is a two-stage curing adhesive. For example, but not limited to, the first stage is fixed by irradiating the adhesive with ultraviolet (UV) to achieve temporary fixation; the second stage The fixation is permanent fixation by heating and baking. With this adhesive, when assembling the focusing assembly 210 and the image sensing assembly 250, the active alignment (AA) method can be used to adjust the optical lens group of the focusing assembly 210 and the image sensing assembly 250. Alignment between detectors 252. In addition, in some embodiments, the anti-vibration component 220 and the focusing component 210 can also be fixed to each other by the aforementioned two-stage adhesive and active alignment (not shown in FIGS. 3A and 3B).

In the embodiment shown in FIG. 3A, the image sensor 252 is fixed and electrically connected to the circuit board 260. In the embodiment of FIG. 3A, the image sensor 252 is electrically connected to the circuit board by wire bonding to fix The frame 256 is fixed to the circuit board 260, and the filter 254 is fixed to the fixing frame 256. In the embodiment shown in FIG. 3B, the image sensor 252 is electrically connected to a circuit board (not shown in the figure), and the main plane (rear surface) of the image sensor 252 can be attached to or bonded (bonding) For the circuit board, it can also be perpendicular to the circuit board. In some embodiments, the image sensor 252 is attached to the sub-circuit board, and the image sensor 252 and the sub-circuit board are vertically arranged on the main circuit board; alternatively, the image sensor 252 is arranged in a suitable frame In this case, the frame can be vertically arranged on the main circuit board and connected to the main circuit board through connection lines (such as flexible circuit boards).

In the embodiment of FIGS. 3A and 3B, the focusing assembly 210 has only the movable optical lens group 212, so that the overall volume and weight of the focusable imaging device 200 are reduced, and the length along the optical axis L is also shortened, so that the device is equipped with The mobile device of the focus imaging device 200 can better meet the needs of thinning.

In the embodiment of FIGS. 3A and 3B, the light path changing element 280 is fixed to the housing 286, and the housing 286 is fixed to the driving element 226 of the anti-vibration assembly 220. Therefore, the position of the optical path changing element 280 is fixed relative to the driving element 226.

Please refer to FIG. 4. FIG. 4 is a schematic structural diagram of a focusable imaging device 200 drawn according to some embodiments. The focusable imaging device 200 includes an image sensing component 250, a focusing component 210, an anti-vibration component 220, and an optical path changing element 280. Wherein, the shockproof component 220 and the light path changing element 280 are fixed to the assembly housing 228. Specifically, the shockproof optical lens group 222 is fixed to the driving element 226, the driving element 226 is fixed to the assembly housing 228, and the optical path changing element 280 is fixed to the assembly housing 228 (for example, as shown in FIG. 4, the assembly The housing 228 may have a structure that matches the shape of one side of the light path changing element 280, and the light path changing element 280 is fixed on this structure). Therefore, the shockproof assembly 220, the optical path changing element 280 and the assembly housing 228 can be regarded as a single assembly 270 at this time. When assembling, it is only necessary to actively align the assembly 270 with the focusing assembly 210. The remaining components can be similar to the embodiment shown in FIG. 3A, and will not be repeated here.

In summary, the present application provides a focusable imaging device, through its multiple specific lens group structure, the whole can be easily assembled, and/or the device can be faster auto focus (Auto Focus), and/or have Anti-shake (Optical Image Stabilization, OIS), telephoto (Telephoto) functions, and can meet the needs of higher specifications of mobile devices.

200: Focusable imaging device 210: Focusing component 212: movable optical lens group 214: Fixed optical lens group 216: Actuating element 218: Frame 220: Shockproof components 222: Shockproof optical lens group 226: drive components 227: Lens Tube 228: Assembly shell 250: Image sensor component 252: Image Sensor 254: filter 256: fixed frame 260: circuit board 270: Assembly 280: Optical path changing element 282: Glossy Surface 284: Glossy Surface 286: Shell C: Take the image direction C’: Actual imaging direction I: imaging surface L: Optical axis θ: included angle θ’: included angle

[Fig. 1A] is a schematic diagram of the structure of a focusable imaging device drawn according to some embodiments. [Fig. 1B] is a schematic diagram of the structure of a focusable imaging device drawn according to some embodiments. [Fig. 1C] is a schematic diagram of the structure of a focusable imaging device drawn according to some embodiments. [Fig. 1D] is a schematic diagram of the structure of a focusable imaging device drawn according to some embodiments. [Fig. 2] is a schematic diagram of the structure of a focusable imaging device drawn according to some embodiments. [Fig. 3A] is a schematic diagram of the structure of a focusable imaging device drawn according to some embodiments. [FIG. 3B] is a schematic diagram of the structure of a focusable imaging device drawn according to some embodiments. [Fig. 4] is a schematic diagram of the structure of a focusable imaging device drawn according to some embodiments.

200: Focusable imaging device

210: Focusing component

212: movable optical lens group

214: Fixed optical lens group

216: Actuating element

218: Frame

220: Shockproof components

222: Shockproof optical lens group

226: drive components

250: Image sensor component

252: Image Sensor

254: filter

256: fixed frame

C: Take the image direction

I: imaging surface

L: Optical axis

Claims (14)

A focusable imaging device includes: A lens group, including: An anti-vibration component having an optical axis. The anti-vibration component includes a first optical lens group and a driving element for driving the first optical lens group to move on a plane perpendicular to the optical axis or to move the light The axis rotates around the center; and A focusing component fixed to the anti-vibration component, the focusing component including a second optical lens group aligned with the optical axis; and An image sensing component is fixed on one end of the lens group and aligned with the optical axis. The focusable imaging device according to claim 1, further comprising an optical path changing element disposed at the other end of the lens group away from the image sensing component, and the optical path changing element is used to change the focusable imaging An imaging direction of the device. According to the focusable imaging device of claim 2, the optical path changing element is a reflective sheet, and the included angle between the reflective sheet and the imaging direction is substantially the same as the included angle between the optical axis and the reflective sheet. According to the focusable imaging device of claim 2, the light path changing element is a beam, the beam has a light entrance surface and a light exit surface, the light entrance surface is perpendicular to the image capturing direction, and the light exit surface is The optical axis is vertical. The focusable imaging device according to claim 2 further includes an assembly housing, and the light path changing element and the shockproof component are arranged in the assembly housing. The focusable imaging device according to claim 1, wherein the second optical lens group is a movable optical lens group, and the focusing assembly further includes an actuating element, the movable optical lens group is disposed in the actuating element, the The actuating element is used for actuating at least one movable optical lens in the movable optical lens group to move along the optical axis. The focusable imaging device according to claim 1, wherein the second optical lens group is a fixed optical lens group. The focusable imaging device according to claim 7, wherein the driving element is further used to drive the first optical lens group to move along the optical axis. The focusable imaging device according to claim 1, wherein the focusing assembly further includes an actuating element, a third optical lens group, and a frame body, the second optical lens group is a movable optical lens group, and the movable optical lens The group is disposed in the actuating element, and the actuating element is used to actuate at least one movable optical lens in the movable optical lens group to move along the optical axis, and the third optical lens group is aligned with the optical axis and is a fixed optical lens The fixed optical lens group is fixed to the frame, and the frame is fixed to the actuating element. The focusable imaging device according to claim 9, wherein the size of each lens in the movable optical lens group is smaller than the size of each lens in the fixed optical lens group. The focusable imaging device according to claim 9, wherein the movable optical lens group and the fixed optical lens group are arranged in a single housing. The focusable imaging device according to claim 1, wherein the focusing component is located between the anti-vibration component and the image sensing component. The focusable imaging device according to claim 1, wherein the anti-vibration component is located between the focusing component and the image sensing component. The focusable imaging device according to claim 1, wherein the image sensing component includes an image sensor, a filter, and a fixing frame, and the image sensor and the filter are fixed to the fixing frame, The filter is used for filtering a light beam that faces the image sensor along the optical axis.

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