CN109963058A

CN109963058A - Prism apparatus and camera apparatus including prism apparatus

Info

Publication number: CN109963058A
Application number: CN201811531640.XA
Authority: CN
Inventors: 李东烈; 李自镛; 姜亨宙; 金宽亨
Original assignee: LG Electronics Inc
Current assignee: LG Electronics Inc
Priority date: 2017-12-14
Filing date: 2018-12-14
Publication date: 2019-07-02
Anticipated expiration: 2038-12-14
Also published as: CN109963058B

Abstract

The present invention relates to prism apparatus and camera and image display device including the prism apparatus.Prism apparatus of the invention includes: the first prism, is configured to reflect input light towards the first reflection direction；First actuator is configured to change based on first control signal the first prism around the angle of the first rotary shaft to change the first reflection direction；Second prism is configured to reflect the light from the first prismatic reflection towards the second reflection direction；And second actuator, it is configured to change based on second control signal the second prism around the angle of the second rotary shaft to change the second reflection direction.

Description

Prism apparatus and camera apparatus including prism apparatus

Cross reference to related applications

This application claims the U.S. Patent application No.US62/598,475 submitted on December 14th, 2018 and 2018 8 The priority for the South Korea patent application No.10-2018-0097631 that the moon 21 was submitted in Korean Intellectual Property Office, the disclosure of which It is incorporated herein by reference this.

Technical field

The present invention relates to a kind of prism apparatus and including the camera apparatus of the prism apparatus, and more particularly, to one Kind is able to carry out optical image stabilization (OIS) to compensate the prism apparatus of the movement of the biprism as caused by hand shaking and including the rib The camera and image display device of lens device.

Background technique

Camera is the device for shooting image.Recently, it with camera is used in the terminal, has carried out about phase The research of machine miniaturization.

Meanwhile other than the trend toward miniaturization of camera, automatic focusing function and optical image stabilization (OIS) function are also used Energy.

Particularly, in order to execute optical image stabilization (OIS) function, it is important that accurately detect and compensate by hand shaking The movement of caused biprism.

Summary of the invention

The present invention has been completed in view of the above problems, and a kind of prism apparatus and the phase including the prism apparatus are provided Machine and image display device, the prism apparatus are able to carry out Optical image stabilization (OIS), double as caused by hand shaking for compensating The movement of prism.

The present invention also provides the prisms that one kind can execute optical image stabilization (OIS) by rotating independently biprism Device and camera and image display device including the prism apparatus.

The present invention also provides a kind of slim camera and including the image display device of prism apparatus.

According to aspects of the present invention, a kind of prism apparatus includes: the first prism, which is configured to towards first Reflection direction reflects input light；First actuator, first actuator are configured to change the first rib based on first control signal For mirror around the angle of the first rotary shaft to change the first reflection direction, the second prism is configured to will be from the light of the first prismatic reflection It is reflected towards the second reflection direction；And second actuator, second actuator are configured to change based on second control signal Second prism surrounds the angle of the second rotary shaft to change the second reflection direction.

First prism includes internal first reflecting surface, and the second prism includes internal second reflecting surface, inside this First reflecting surface and internal second reflecting surface are configured to reflected light.

First prism is configured to receive input light by the first entrance prism surface and by the first outgoing prism table The input light that face output is reflected from internal first reflecting surface, and the second prism is configured to through the second entrance prism surface The reflected light for receiving reflected light and being reflected by the second outgoing prism surface output from internal second reflecting surface.

First prism and the second prism are configured so that the first outgoing prism surface towards the second entrance prism surface.

Second rotary shaft of first rotary shaft of the first prism perpendicular to the second prism.

In response to making the first prism around the first rotary shaft rotation first angle and making the second prism around the second rotation Axis rotate second angle movement, the first actuator be configured in response to first control signal make the first prism with first party Third angle is rotated on opposite third direction, the second actuator, which is configured in response to second control signal, makes the second prism Fourth angle is rotated in the fourth direction opposite with second direction, wherein third angle is the half of first angle, and wherein Fourth angle is the half of second angle.

Prism apparatus further include: the first Hall sensor, first Hall sensor are configured to feel based on the first magnetic field Survey the angulation change of the first prism；With the second Hall sensor, which is configured to feel based on the second magnetic field Survey the angulation change of the second prism.

First actuator includes the first driving magnet and the first driving coil.

Prism apparatus further include: the first prism bracket, first prism bracket are configured to fix the first prism；First Yoke, first yoke are coupled to the rear portion of the first prism bracket；First driving magnet, first driving magnet are coupled to the first prism The rear portion of bracket；First coil bracket, including towards the first prism bracket multiple protrusions outstanding, it is every in plurality of protrusion One includes opening, and wherein the first rotary shaft of limited opening, wherein the first driving coil is disposed in first coil bracket And first between yoke, wherein the first prism bracket includes multiple boss, the boss is configured to connect with the opening of multiple protrusions It closes to allow the first prism to rotate around the first prism axis.

Second actuator includes the second driving magnet and the second driving coil.

Prism apparatus further include: the second prism bracket, second prism bracket are configured to fix the second prism；Second Yoke, second yoke are coupled to the rear portion of the second prism bracket；Second driving magnet, second driving magnet are coupled to the second yoke Rear portion；Second coil brace, which includes direction the second prism bracket multiple protrusions outstanding, plurality of prominent Each of rise includes opening, and wherein the second rotary shaft of limited opening, wherein the second driving coil is disposed in second Between coil brace and the second yoke, wherein the second prism bracket includes multiple boss, the multiple boss be configured to it is multiple The opening engagement of protrusion is to allow the second prism to rotate around the second prism axis.

The refractive index of first prism and the second prism is 1.7 or bigger.

The refractive index of first prism and the second prism less than 1.7, and wherein reflectance coating be formed on the first prism and On the reflecting surface of second prism.

According to aspects of the present invention, a kind of camera apparatus includes: gyro sensor, which is configured to Sense the movement of camera apparatus；Double prism arrangement is configured to guide input light；Lens devices, the lens devices include multiple Lens, the multiple lens are configured to be conditioned to realize variable-focus；And imaging sensor, the imaging sensor are matched It is set to based on input photogenerated picture signal, wherein double prism arrangement includes: the first prism, which is configured to direction First reflection direction reflects input light；First actuator, first actuator are configured to change the based on first control signal One prism surrounds the angle of the first rotary shaft to change the first reflection direction；Second prism, second prism be configured to by from The light of first prismatic reflection is reflected towards the second reflection direction；And second actuator, second actuator are configured to be based on Second control signal the second prism of change surrounds the angle of the second rotary shaft to change the second reflection direction, for filling towards lens Set the light with imaging sensor output reflection.

Camera apparatus further include: the first Hall sensor, first Hall sensor are configured to feel based on the first magnetic field Survey the angulation change of first prism caused by mobile；With the second Hall sensor, which is configured to base In the angulation change of the second sensing magnetic fields second prism caused by moving.

Camera apparatus further include: drive control device, the drive control device are configured to generate first control signal and second Signal is controlled, for stablizing by imaging sensor captured image, wherein first control signal is based on first caused by mobile The angulation change and second control signal of prism are the angulation changes based on second prism caused by mobile.

Input light into the first entrance prism surface is oriented parallel to imaging sensor.

Imaging sensor receives corresponding with the object shot from double prism arrangement light, at the same imaging sensor perpendicular to The object positioning being taken.

One or more in multiple lens is moved along axis to realize variable-focus, and axis enters perpendicular to being input to first Penetrate the direction of prism surface and the light exported by the first entrance prism surface from the first prism.

Camera apparatus further includes drive control device, in which: in response to making the first prism around the first rotary shaft rotation first Angle and make the second prism around the movement of the second rotary shaft rotation second angle, drive control device is configured to: generating the One control signal so that the first prism is rotated third angle on the third direction opposite with first direction by the first actuator, and And second control signal is generated so that the second prism is rotated the by the second actuator in the fourth direction opposite with second direction Four angles, wherein third angle is the half of first angle, and wherein fourth angle is the half of second angle.

Camera apparatus further include: the first prism bracket, first prism bracket are configured to fix the first prism；First Yoke, first yoke are coupled to the rear portion of the first prism bracket；First driving magnet of the first actuator, the of first actuator One driving magnet is coupled to the rear portion of the first yoke；First coil bracket, the first coil bracket include towards the first prism bracket Multiple protrusions outstanding, each of plurality of protrusion include opening, and wherein the first rotary shaft of limited opening, wherein First driving coil of the first actuator is disposed between first coil bracket and the first yoke, wherein the first prism bracket includes Multiple boss, the boss are configured to engage with the opening of multiple protrusions to allow the first prism to revolve around the first prism axis Turn.

Camera apparatus further include: the second prism bracket, second prism bracket are configured to fix the second prism；Second Yoke, second yoke are coupled to the rear portion of the second prism bracket；Second driving magnet of the second actuator, the of second actuator Two driving magnets are coupled to the rear portion of the second yoke；Second coil brace, second coil brace include towards the second prism bracket Multiple protrusions outstanding, each of plurality of protrusion include opening, and wherein the second rotary shaft of limited opening, wherein Second driving coil of the second actuator is disposed between the second coil brace and the second yoke, wherein the second prism bracket includes Multiple boss, the multiple boss are configured to engage with the opening of multiple protrusions to allow the second prism around the second prism axis Rotation.

The prism apparatus of embodiment according to the present invention includes: the first prism, the first prismatic reflection input light；First causes Dynamic device, first actuator change the angle of the first prism based on first control signal relative to the first rotary shaft；Second prism, Light of second prismatic reflection from the first prism；And second actuator, second actuator are based on second control signal Change the angle of the second prism relative to the second rotary shaft.Therefore, it can be realized the optical image stabilization (OIS) of biprism.It is special Not, by rotating independently biprism, optical image stabilization (OIS) can be realized based on multiple rotary shafts.

Meanwhile first prism and the second prism be arranged to it is intersected with each other.Therefore, because the first prism and the second prism Optical path is different from each other, so can be realized L-type camera, and therefore can be realized the slim camera with reduced thickness.

Meanwhile prism apparatus further include: the first Hall sensor, first Hall sensor is according to the angle of the first prism Change the change in sensing magnetic field or magnetic field；Second Hall sensor, second Hall sensor change according to the angle of the second prism Become to sense the change in magnetic field or magnetic field.Therefore, it can be realized the optical image stabilization (OIS) of biprism.

Meanwhile first actuator include the first driving magnet and the first driving coil.Therefore, it can be realized the first prism Optical image stabilization (OIS).

Meanwhile first driving magnet be attached to second surface, which is the rear table of the first surface of the first yoke Face, the first driving coil are disposed between first coil bracket and the first yoke, and convex in the both ends of the first prism bracket Platform is coupled with the opening in the protrusion for being formed in first coil bracket.Therefore, the first driving magnet, the first prism bracket and first Prism can be rotated based on the first rotary shaft.

Meanwhile second actuator include the second driving magnet and the second driving coil.Therefore, it can be realized the second prism Optical image stabilization (OIS).

Meanwhile second driving magnet be attached to second surface, which is the rear table of the first surface of the second yoke Face, the second driving coil are disposed between the second coil brace and the second yoke, and convex in the both ends of the second prism bracket Platform couples the opening being formed in the protrusion of the second coil brace.Therefore, the second driving magnet, the second prism bracket and the second rib Mirror can be rotated based on the second rotary shaft.

Meanwhile when the first prism is mobile with the first angle of the first direction of the first rotary shaft, with the first rotary shaft The opposite second direction of first direction on, the first prism is changed to second angle by the first actuator, which is The half of one angle.Therefore, the offset angle in optical image stabilization (OIS) becomes smaller, and makes it possible to improve optical image stabilization (OIS) precision.

Meanwhile when the second prism is mobile with the third angle of the third direction of the second rotary shaft, with the second rotary shaft The opposite fourth direction of third direction on, the second prism is changed into fourth angle by the second actuator, which is The half of three angles.Therefore, the offset angle in optical image stabilization (OIS) becomes smaller, and makes it possible to improve optical image stabilization (OIS) precision.

Meanwhile first the refractive index of prism and the second prism be 1.7 or bigger.It therefore, can be in the first prism and second Total reflection is executed in prism, and therefore, light can transmit on the direction of imaging sensor.

Meanwhile first prism and the second prism refractive index less than 1.7, and reflectance coating is respectively formed in the first rib On the reflecting surface of mirror and the second prism.Therefore, total reflection can be executed in the first prism and the second prism, and therefore, Light can transmit on the direction of imaging sensor.

The camera of embodiment according to the present invention includes: gyro sensor, the gyro sensor sensing movement；Prism Device, the prism apparatus change the angle and output light of input light relative to the first rotary shaft and the second rotary shaft, with compensation by The movement of gyro sensor sensing；Lens devices, including multiple lens, it is varifocal to realize for moving at least one lens Point, and by using mobile lens from prism apparatus output light；And imaging sensor, the imaging sensor will come from lens The light of device is converted into electric signal.Therefore, it can be realized the optical image stabilization (OIS) of biprism.Particularly, by independently Biprism is rotated, can realize optical image stabilization (OIS) based on multiple rotary shafts.

Meanwhile camera further includes drive control device, which is based on first control signal and comes from the first Hall First magnetic field of sensor or magnetic field change information to control the first actuator, and based on second control signal and from second Second magnetic field of Hall sensor or magnetic field change information and control the second actuator.Meanwhile, it is capable to closing by drive control device Ring controls to realize accurate optical image stabilization (OIS).

The image display device of embodiment according to the present invention includes: display；Camera；Controller, controller control Display is to show the image shot by camera；And gyro sensor, the gyro sensor are used for sensing movement, In, camera includes: prism apparatus, which changes the angle of input light relative to the first rotary shaft and the second rotary shaft, And output light, in order to compensate the movement sensed by gyro sensor；Lens devices, including multiple lens, are moved to Few lens are to realize variable-focus, and by using mobile lens from prism apparatus output light；And imaging sensor, Light from lens devices is converted into electric signal by the imaging sensor.Therefore, it can be realized the optical image stabilization of biprism (OIS).Particularly, by rotating independently biprism, optical image stabilization (OIS) can be realized based on multiple rotary shafts.

Detailed description of the invention

In conjunction with attached drawing from following detailed description, objects, features and advantages of the present invention be will become apparent from, In:

Figure 1A is the perspective view of the exemplary mobile terminal of the image display device as embodiment according to the present invention；

Figure 1B is the rear perspective view of mobile terminal shown in Figure 1A；

Fig. 2 is the block diagram of the mobile terminal of Fig. 1；

Fig. 3 A is the internal cross section figure of the camera of Fig. 2；

Fig. 3 B is the internal frame diagram of the camera of Fig. 2；

Fig. 3 C and Fig. 3 D are the various examples of the internal frame diagram of the camera of Fig. 2；

Fig. 4 A is the figure for the camera that diagram has double prism arrangement；

Fig. 4 B and Fig. 4 C are the figures for illustrating the camera for wherein omitting double prism arrangement；

Fig. 5 A is the exemplary figure for illustrating the camera with rotatable biprism module of embodiment according to the present invention；

Fig. 5 B is the figure of the mobile terminal of camera of the diagram with Fig. 5 A；

Fig. 6 A is the another exemplary of the camera with rotatable biprism module of diagram embodiment according to the present invention Figure；

Fig. 6 B is the figure of the mobile terminal of camera of the diagram with Fig. 6 A；And

Fig. 7 to Figure 10 is the figure for the camera of explanation figure 6A.

Specific embodiment

Hereinafter, the present invention will be described in detail by referring to the drawings.About the constituent element used in the following description, only Suffix " module " and " unit " are provided in view of preparing the easiness of specification, and is not had or as different meanings. Therefore, suffix " module " and " unit " may be used interchangeably.

Figure 1A is the perspective view of the exemplary mobile terminal of the image display device as embodiment according to the present invention, and And Figure 1B is the rear perspective view of mobile terminal shown in Figure 1A.

With reference to Figure 1A, the shell for forming the appearance of mobile terminal 100 can be by procapsid 100-1 and back casing 100-2 shape At.Various electronic building bricks can be embedded in the space formed by procapsid 100-1 and back casing 100-2.

Specifically, display 180, the first sound output module 153a, first camera 195a and first to third user Input unit 130a, 130b and 130c can be arranged in procapsid 100-1.In addition, fourth user input unit 130d, the 5th User input unit 130e and first can be arranged in the side table of back casing 100-2 to third microphone 123a, 123b and 123c On face.

In display 180, touch tablet can be overlapped with layer structure, so that display 180 can be used as touch screen operation.

First sound output module 153a can be realized in the form of receiver or loudspeaker.First camera 195a can be with Form suitable for the image or moving image etc. that shoot user is realized.Microphone 123 can be suitable for receive user voice, its The form of his sound etc. is realized.

Described below first to the 5th user input unit 130a, 130b, 130c, 130d and 130e and the 6th and Seven user input unit 130f and 130g may be collectively referred to as user input unit 130.

First microphone 123a and second microphone 123b can be arranged in the upside i.e. mobile terminal of back casing 100-2 100 upside is to collect audio signal, and third microphone 123c can be arranged in the downside i.e. movement of back casing 100-2 eventually The downside at end 100 is to collect audio signal.

With reference to Figure 1B, second camera 195b, third camera 195c and the 4th microphone 123d can be additionally installed on rear shell In the rear surface of body 100-2, and after the 6th and the 7th user input unit 130f and 130g and interface 175 can be arranged in On the side surface of shell 100-2.

Second camera 195b has the shooting direction substantially opposite with the shooting direction of first camera 195a, and can have There is the pixel different from first camera 195a.Flash lamp (not shown) and reflecting mirror (not shown) can be additionally arranged Cheng Yu Two camera 195b are adjacent.In addition, another camera can be installed to be and adjacent with second camera 195b be used to shoot 3 D stereo Image.

Second camera 195b can have the shooting direction substantially opposite with the shooting direction of first camera 195a, and can To have the pixel different from first camera 195a.Flash lamp (not shown) and reflecting mirror (not shown) can be additionally arranged for It is adjacent with second camera 195b.In addition, another camera can be mounted to it is adjacent with second camera 195b be used to shoot three Tie up stereo-picture.

In addition second sound output module (not shown) can be arranged in back casing 100-2.Second sound output module Can realize stereo function together with the first sound output module 153a, and can be used under speakerphone mode into Row call.

Power supply unit 190 for supplying from electric power to mobile terminal 100 may be mounted in back casing 100-2.Power supply list Member 190 can be such as rechargeable battery, and can be removably coupled to back casing 100-2 to charge etc..

4th microphone 123d can be arranged in the front surface of back casing 100-2 i.e. in the rear surface of mobile terminal 100 In to collect audio signal.

Fig. 2 is the block diagram of the mobile terminal of Fig. 1.

With reference to Fig. 2, mobile terminal 100 may include wireless communication unit 110, audio/video (A/V) input unit 120, User input unit 130, sensing unit 140, output unit 150, memory 160, interface 175, controller 170 and power supply list Member 190.When realizing these components in practical applications, if it is necessary, two or more components can be combined into one Component, or can be by a component clustering at two or more components.

Wireless communication unit 110 may include broadcasting reception module 111, mobile communication module 113, wireless Internet module 115, short-range communication module 117 and GPS module 119.

Broadcasting reception module 111 can receive broadcast singal and broadcast from external broadcast management server by broadcast channel At least one of relevant information.It can be deposited by the received broadcast singal of broadcasting reception module 111 and/or broadcast related information Storage is in memory 160.

Mobile communication module 113 can in base station, exterior terminal and the server on mobile communications network at least one It is a to send and receive wireless signal.Here, wireless signal may include according to voice call signal, video call signal or word Symbol/Multimedia Message transmission/received various types of data.

Wireless Internet module 115 refers to the module for Wi-Fi (Wireless Internet Access), and wireless Internet module 115 It can be embedded in the mobile terminal 100 or outside provides.

Short-range communication module 117 refers to the module for short haul connection.It is bluetooth, radio frequency identification (RFID), infrared Data association (IrDA), ultra wide band (UWB), purple honeybee and near-field communication (NFC) may be used as short-range communication technique.

Global positioning system (GPS) module 119 can receive location information from multiple GPS satellites.

Audio/video (A/V) input unit 120 can be used for input audio signal or vision signal, and may include Camera 195, microphone 123 etc..

Camera 195 can handle such as static figure obtained by imaging sensor under video call mode or screening-mode The picture frame of picture or moving image.Then, treated, and picture frame may be displayed on display 180.

It can store in memory 160 by the picture frame that camera 195 is handled or unit 110 sent by wireless communication To outside.Two or more cameras 195 can be provided according to the configuration of terminal.

Microphone 123 can be in display close pattern, for example, under call model, logging mode or speech recognition mode External audio signal is received by microphone, and can be by Audio Signal Processing at electronic voice data.

Meanwhile multiple microphones 123 can be arranged in different positions.Received audio signal can in each microphone To carry out Audio Signal Processing etc. in controller 170.

The key input data of user's input, the operation for controlling terminal can be generated in user input unit 130.User is defeated Entering unit 130 may include keyboard, dome switch and can receive order or information by the pressing or touch operation of user Touch tablet (static pressure scheme/capacitive scheme).Specifically, when touch tablet has the phase alternating layers knot with the display 180 being described later on When structure, touch screen can be referred to as.

Sensing unit 140 can detecte the current state of mobile terminal 100, and such as mobile terminal 100 opens/closes shape State, the position of mobile terminal 100, contact of user etc., and can produce the sensing of the operation for controlling mobile terminal 100 Signal.

Sensing unit 140 may include proximity sensor 141, pressure sensor 143, motion sensor 145, touch sensing Device 146 etc..

Proximity sensor 141 can detect object or the shifting close to mobile terminal 100 in the case where no Mechanical Contact Object near dynamic terminal 100.Specifically, proximity sensor 141 can change by using alternating fields or magnetostatic field Change, or detects neighbouring object by using the change rate of capacitor.

Pressure sensor 143 can detecte whether pressure is applied to mobile terminal 100, or the size etc. of detection pressure.

Motion sensor 145 can detect mobile terminal 100 by using acceleration transducer, gyro sensor etc. Position or movement.

Touch sensor 146 can detecte the touch input of the finger of user or the touch input of specific pen.For example, when touching When touching panel plate and being disposed on display 180, touch screen panel may include for detect the location information of touch input and The touch sensor 146 of strength information.The sensing signal detected by touch sensor 146 can be sent to controller 180.

Output unit 150 can be used for output audio signal, vision signal or alarm signal.Output unit 150 can wrap Include display 180, sound output module 153, alarm unit 155 and tactile module 157.

Display 180 can show and export the information handled by mobile terminal 100.For example, when mobile terminal 100 is in When call model, user interface (UI) relevant to calling or graphic user interface (GUI) can be shown.When mobile terminal 100 When in video calling mode or screening-mode, shooting or received image can be individually or simultaneously shown, and can show UI and GUI.

Meanwhile as described above, when display 180 and touch tablet form phase alternating layers structure to form touch screen, display 180 can other than output device be used as can pass through the input unit of the touch input information of user.

Sound output module 153 can receive in call signal, call model or logging mode, speech recognition mode, wide It broadcasts in reception pattern etc. and exports from the audio data that wireless communication unit 110 is received or is stored in memory 160.Sound Output module 153 can export audio signal related with the function of executing in the mobile terminal 100, for example, call signal connects Radio reception tune, message sink tone etc..Sound output module 153 may include loudspeaker, buzzer etc..

Alarm unit 155 can export the signal for notifying the event of mobile terminal 100 to occur.Alarm unit 155 can To export the signal for occurring with the form notification event in addition to audio signal or vision signal.For example, can be with vibration Form output signal.

The various haptic effects that user can feel can be generated in tactile module 157.The tactile that tactile module 157 generates The typical case of effect can be vibrating effect.When tactile module 157 generate have haptic effect vibration when, can convert by The intensity and mode for the vibration that tactile module 157 generates, and can synthesize and export or vibration that Sequential output is different.

Memory 160 can store the program for handling and controlling controller 170, and can be used for temporarily storing defeated The data (for example, telephone directory, message, static image, moving image etc.) for entering or exporting.

Interface 175 may be used as and be connected to the interface of all external equipments of mobile terminal 100.Interface 175 can be from Outer equipment receiving data receives electric power from external equipment to be sent to each of mobile terminal 100 part, and permits Perhaps the data in mobile terminal 100 are sent to external equipment.

Controller 170 can control the operation of each unit usually to control the integrated operation of mobile terminal 100.For example, Controller 170 can execute relevant control and processing for audio call, data communication, video call etc..In addition, controller 170 may include for playing multimedia multimedia playing module 181.Multimedia playing module 181 can be only fitted to control In hardware inside device 170, or it can discretely be configured in software with controller 170.Meanwhile controller 170 can wrap Include the application processor (not shown) for driving application.Alternatively, application processor (not shown) can be with controller 170 It is provided separately from.

Power supply unit 190 can receive external power or internal power under the control of controller 170, to supply each group Electric power needed for the operation of part.

Fig. 3 A is the internal cross section figure of the camera of Fig. 2.

With reference to attached drawing, Fig. 3 A is the example of the viewgraph of cross-section of the second camera 195b inside camera 195.

Second camera 195b may include aperture 194b, prism apparatus 192b, lens devices 193b and imaging sensor 820b。

Aperture 194b can open and close the light being incident on lens devices 193b.

Imaging sensor 820b may include RGb filter 915b and the sensor for converting optical signals into electric signal Array 911b is in order to sensing RGB color.

Therefore, imaging sensor 820b can sense and export respectively RGB image.

Fig. 3 B is the internal frame diagram of the camera of Fig. 2.

With reference to attached drawing, Fig. 3 B is the example for the block diagram of the second camera 195b inside camera 195.

Second camera 195b may include at prism apparatus 192b, lens devices 193b, imaging sensor 820b and image Manage device 830.

Image processor 830 can generate RGB image based on the electric signal from imaging sensor 820b.

Meanwhile imaging sensor 820b can adjust the time for exposure based on electric signal.

Meanwhile the RGB image from image processor 830 can be sent to the controller 180 of mobile terminal 100.

Meanwhile the controller 180 of mobile terminal 100 can be exported to lens devices 193b in lens devices 193b The control signal of the movement of camera lens.For example, the control signal for being used to focus automatically can be output to lens devices 193b.

Meanwhile the controller 180 of mobile terminal 100 can will be used for the optical image stabilization in prism apparatus 192b (OIS) the control signal of function is output to prism apparatus 192b.

Fig. 3 C and Fig. 3 D are the various examples of the internal frame diagram of the camera of Fig. 2.

Firstly, Fig. 3 C diagram gyro sensor 145c, drive control device DRC, the first prism module 692a and the second rib Mirror module 692b is arranged on inside camera 195b.

Gyro sensor 145c can detecte first direction movement and second direction movement.Gyro sensor 145c can To export the motion information Sfz for including first direction movement and second direction movement.

Drive control device DRC can based on include from gyro sensor 145c first direction movement and second direction The control signal Saca and Sacb that are used for motion compensation are output to the first prism module 692a respectively by the motion information Sfz of movement With the second prism module 692b.

Specifically, control signal can be output to the first prism module 692a and the second prism mould by drive control device DRC The first actuator ACTa and the second actuator ACTb in block 692b.

First control signal Saca can be for compensating by the gyro sensor 145c first direction movement sensed Signal is controlled, and second control signal Sacb can be for compensating the second direction sensed by gyro sensor 145c The control signal of movement.

First actuator ACTa can be based on the first rotary shaft based on first control signal Saca and change the first prism PSMa Angle.

Second actuator ACTb can be based on the second rotary shaft based on second control signal Sacb and change the second prism PSMb Angle.

Meanwhile second in the first the first Hall sensor HSa and the second prism module 692b in prism module 692a Hall sensor Hsb can sense the change in magnetic field to check that the movement due to the first prism PSMa and the second prism PSMb causes Mobile message.

Meanwhile first Hall sensor HSa can be based on the first sensing magnetic fields by the first prism PSMa's caused by moving Angulation change, and the second Hall sensor Hsb can be based on the second sensing magnetic fields second prism PSMb's caused by moving Angulation change.

The motion information, particularly first and second detected by the first Hall sensor HSa and the second Hall sensor Hsb Magnetic field or magnetic field change information Shsa and Shsb, can be input into DRC.

Drive control device DRC can be based on the control signal Saca and Sacb and motion information, spy for motion compensation It is not that the first and second magnetic fields or magnetic field change information Shsa and Shsb to execute PI control etc., to accurately control the first rib The movement of mirror PSMa and the second prism PSMb.

That is, drive control device DRC can be by receiving by the first Hall sensor HSa and the second Hall sensor The information Shsa and Shsb that Hsb is detected executes closed loop, and can accurately control the first prism PSMa and the second Hall The movement of prism PSMb.

Next, although Fig. 3 D be similar to Fig. 3 C, it is existing the difference is that, gyro sensor 145c is not set It sets in camera 195b, but is arranged in the motion sensor 145 of the individual sensing unit 140 inside mobile terminal 100.

Therefore, although not showing in fig. 3d, the camera 195b in Fig. 3 D can also include for passing from external gyroscope The interface (not shown) of sensor 145c reception signal.

Meanwhile the motion information including being moved from the received first direction movement of gyro sensor 145c and second direction Sfz can be input to drive control device DRC.The operation of drive control device can be identical as the operation of Fig. 3 C.

Fig. 4 A is the figure for the camera that diagram has double prism arrangement.

With reference to attached drawing, the camera 195x of Fig. 4 A may include imaging sensor 820x, be used for light transmission to image sensing The lens devices 193x of device, for the lens in mobile lens device 193x lens driving unit (CIRx) and have the The double prism arrangement 192bx of one prism 192ax and the second prism 192bx.

The camera 195x of Fig. 4 A can execute the movement of lens devices 193x to execute optical image stabilization (OIS).Attached In figure, it is shown on the direction Dra and executes compensation.

The shortcomings that the method, is, when the optical zoom of lens devices 193x is high, it is steady should more to execute optical imagery Fixed (OIS).Therefore, the precision of optical image stabilization (OIS) can be reduced.

In addition, in this case, lens moving direction should intersect with the direction Dra, make it difficult to realize that lens move simultaneously The dynamic and movement for executing optical image stabilization (OIS).

In the present invention, in order to compensate for that, it is assumed that optical image stabilization (OIS) realizes inside prism module, And angle compensation is executed particularly with the use of revolving actuator.According to this, by executing angle compensation, regardless of lens devices The optical zoom of 193x be it is low or high, have the advantages that be enough to compensate only for the angle in given range.It is, for example, possible to use more A prism module to compensate the first angle in the first and second rotary axis directions respectively.Therefore, regardless of optical zoom, because Angle compensation in given range becomes possible, so the precision of optical image stabilization (OIS) can be improved.Fig. 5 A couple will be referred to This is described.

Fig. 4 B and Fig. 4 C are the figures for illustrating the camera for wherein omitting double prism arrangement.

With reference to attached drawing, the camera 195y of Fig. 4 B may include imaging sensor 820y, be used for light transmission to image sensing The lens devices 193y of device and lens driving unit (CIRx) for the mobile lens in lens devices 193y.

Meanwhile because the camera 195y of Fig. 4 B does not have multiple prism apparatus, input light RI can pass through lens devices 193y is directly inputted, so that lens devices 193y and imaging sensor 820y should be arranged perpendicular to input light RI.

That is, input light RI can be transmitted to via lens devices 193y in the mobile terminal 100y of Fig. 4 C Imaging sensor 820y.

Recently, the length Wy of lens devices 193y increases according to high image quality and high performance trend.Using this Structure has the drawback that, as the length Wy of lens devices 193y increases, the thickness DDy of mobile terminal 100y becomes larger.

Therefore, in order to solve this problem, in the present invention it is possible to use biprism, and the first prism and the second prism May be arranged to it is intersected with each other so that path light (RI) of the first prism and the second prism is different.According to this configuration, can It realizes L-type camera, and therefore can be realized the slim camera with reduced thickness.This will be described with reference to Fig. 5 A.

Fig. 5 A is the exemplary figure for illustrating the camera with rotatable biprism module of embodiment according to the present invention, and And Fig. 5 B is the figure of the mobile terminal of camera of the diagram with Fig. 5 A.

With reference to attached drawing, the camera 500a of Fig. 5 A may include imaging sensor 520, be used for light transmission to imaging sensor 520 lens devices 593 and double prism arrangement 592 with the first prism module 592a and the second prism module 592b.

Double prism arrangement 592 can be different from Fig. 4 A, because its rotation is to realize optical image stabilization (OIS) function.

Meanwhile it is different from Fig. 4 A, because lens devices 593 are not equipped with optical image stabilization (OIS) function, and It can be realized more slimly.

Lens devices 593 can have at least one lens, and lens can be moved for variable-focus.

For example, multiple lens, such as concavees lens and convex lens has can be set in lens devices 593, and can be based on next It is varifocal to realize that at least one of interior lens are moved from the control signal of image processor 830 or controller 180 Point.Particularly, imaging sensor 820b can be moved to or moved on the direction opposite with imaging sensor 820b.

Meanwhile Fig. 5 A pictorial images sensor 520, lens devices 593 and double prism arrangement 592 are sequentially arranged temporally, and And the light being incident on double prism arrangement 592 is transmitted to lens devices 593 and imaging sensor 520.However, now of the invention It is without being limited thereto.

It specifically, can be anti-by the inside first of the first prism PSMa in the first prism module 592a from light above Reflective surface RSa reflection, and it can be transmitted to the second prism module 592b, and can be by the second prism module 592b Inside the second reflecting surface RSb of second prism PSMb reflects and can be transmitted to lens devices 593 and imaging sensor 520。

That is, different from Fig. 5 A, imaging sensor 520, double prism arrangement 592 and lens devices 593 can sequences Ground arrangement, and the light being incident on lens devices 593 can transmit double prism arrangement 592 and imaging sensor 520.

Double prism arrangement 592 may include the first prism PSMa, be configured to towards the reflection input of the first reflection direction Light；First actuator ACTa is configured to change the first prism PSMa around the first rotary shaft based on first control signal Saca The angle of Axma is to change the first reflection direction；Second prism PSMb is configured to the light court that will be reflected from the first prism PSMa It is reflected to the second reflection direction；And second actuator, it is configured to change the second prism based on second control signal Sacb PSMb changes the second reflection direction around the angle of the second rotary shaft Axmb to execute optical image stabilization (OIS), for compensating The movement of the biprism as caused by hand shaking.

First prism PSMa may include the first reflecting surface RSa of inside, and the second prism PSMb includes being configured to Inside the second reflecting surface RSb of reflected light.

First prism PSMa can receive input light by the first entrance prism surface ISa, and pass through the first outgoing rib Mirror surface OSa exports the input light reflected from the first reflecting surface RSa of inside, and the second prism PSMb can enter by second Prism surface ISb is penetrated to receive reflected light and export by the second outgoing prism surface OSb anti-from the second reflecting surface RSb of inside The reflected light penetrated.

First prism PSMa and the second prism PSMb is configured such that the first outgoing prism surface OSa towards the second incident rib Mirror surface ISb.

The first rotary shaft Axma of first prism PSMa can be perpendicular to the second rotary shaft Axmb of the second prism PSMb.

At this time, it is preferred that the first prism PSMa and the second prism PSMb are intersected with each other.In particular, it is preferred that first Prism PSMa and the second prism PSMb are arranged perpendicularly to each other.

Meanwhile first the refractive index of prism PSMa and the second prism PSMb can be 1.7 or bigger.It therefore, can be Total reflection is executed in one prism PSMa and the second prism PSMb, and therefore, light RI can be on the direction of imaging sensor thoroughly It penetrates.

The refractive index of first prism PSMa and the second prism PSMb can be less than 1.7, and reflectance coating can be formed in The reflecting surface of second prism PSMb, on the second substrate PSMb.It therefore, can be in the first prism PSMa and the second prism PSMb Total reflection is executed, and therefore, light RI can be transmitted on the direction of imaging sensor.

Accordingly, imaging sensor 520, lens devices 593 and the first prism module 592a can in one direction side by side Arrangement, and the second prism module 592b is arranged as intersecting with the first prism module 592a.

Therefore, the first prism module 592a and the second prism module 592b can be referred to as L-type double prism arrangement 592.Separately Outside, the camera 500a with this structure can be referred to as L-type camera.

It according to this configuration, can be on CRa in a first direction by the first prism module 592a and the second prism module 592b Such as it is rotated in the counter clockwise direction ccw based on the first rotary shaft Axma, and can be on second direction CRb for example It rotates in the counter clockwise direction ccw based on the second rotary shaft Axmb to execute angle compensation, to realize optical imagery Stablize (OIS) function.

For example, in response to making the first prism PSMa rotate first angle θ 1 around the first rotary shaft Axma and making the second prism PSMb rotates the movement of second angle θ 2 around the second rotary shaft Axmb, and the first actuator ACTa is configured in response to the first control First prism PSMa is rotated third angle θ 3, the second actuator on the third direction opposite with first direction by signal Saca ACTb is configured in response to second control signal Sacb in the fourth direction opposite with second direction for the second prism PSMb Fourth angle is rotated, third angle θ 3 can be the half of first angle θ 1, and fourth angle can be second angle θ's 2 Half.Therefore, the offset angle of optical image stabilization (OIS) becomes smaller can improve the precision of optical image stabilization (OIS).

Particularly because angle compensation is executed by using the first actuator ACTa and the second actuator ACTb, so There are the advantages of be no matter whether the optical zoom of lens devices 593 is that low magnifying power or high magnifying power are enough to compensate only for giving Angle in range.Therefore, regardless of optical zoom, the precision of optical image stabilization (OIS) can be improved.

In addition, can be realized slim camera 500a because can realize that optimal spatial arranges in a limited space. Therefore, the present invention can be applied to mobile terminal 100 etc..

The length of Fig. 5 A diagram lens devices 593 is indicated by Wa, and the length of double prism arrangement 592 is indicated by Wpa, and And the height of lens devices 593 and double prism arrangement 592 is indicated by ha.

Because the first prism module 592a and the second prism module 592b in double prism arrangement 592 are arranged to hand over each other Fork, as shown in the mobile terminal 100a of Fig. 5 B, the moving direction of incident light RI can pass through the first prism module 592a and the Two prism module 592b are changed twice, and imaging sensor 520 can be disposed in the left side of mobile terminal 100a.Especially Ground, imaging sensor 520 can be arranged opposite with the side of mobile terminal 100a.

Therefore, the thickness DDa of mobile terminal 100y can not be by the length of lens devices 593 and double prism arrangement 592 And (Wa+Wpa) determine, but the height of height ha or imaging sensor by lens devices 593 or double prism arrangement 592 Ho is spent to determine.

Therefore, when the height ho of the height ha or imaging sensor of lens devices 593 and double prism arrangement 592 are designed to When low, the thickness DDa of mobile terminal 100y can be realized slimly.It is thereby achieved that the slim camera with thin thickness 500a and mobile terminal with slim camera 500a.

Fig. 6 A is the another exemplary of the camera with rotatable biprism module of diagram embodiment according to the present invention Figure.Fig. 6 B is the figure of the mobile terminal of camera of the diagram with Fig. 6 A, and Fig. 7 to Figure 10 is the camera for explanation figure 6A Figure.

With reference to attached drawing, the camera 600 of Fig. 6 A may include imaging sensor 620, be used for light transmission to imaging sensor 620 lens devices 693 and double prism arrangement 692 with the first prism module 692a and the second prism module 692b.

The camera 600 of Fig. 6 A is similar to the camera 500a of Fig. 5 A, the differ in that, in double prism arrangement 692 First prism module 692a and the second prism module 692b are arranged differently.In this case, difference is mainly described.

In the accompanying drawings, pictorial images sensor 620, lens devices 693 and double prism arrangement 692 are sequentially arranged, and And the light being incident on double prism arrangement 692 is transmitted to lens devices 693 and imaging sensor 620.

It specifically, can be anti-by the reflecting surface of the first prism PSMa in the first prism module 692a from light above It penetrates, and the second prism module 692b can be transmitted to, and can be by the second prism in the second prism module 692b The reflecting surface of PSMb reflects and can be transmitted to lens devices 693 and imaging sensor 520.

That is, it is different from Fig. 5 A, the difference is that, compared with the second prism module 692b, the biprism of Fig. 6 A The first prism module 692a in device 692 is disposed in forward direction.Therefore, by the prism in the first prism module 692a The light of module PSMa reflection can travel upwardly in ground direction or right.

That is, it is different from Fig. 6 A, it can sequentially placement of images sensor 620, double prism arrangement 692 and lens fill The light setting 693, and being incident on lens devices 693 can be transmitted to double prism arrangement 692 and imaging sensor 620.? Hereinafter, by the structure of main description Fig. 6 A.

Double prism arrangement 692 may include: the first prism PSMa, be configured to towards the reflection input of the first reflection direction Light；First actuator ACTa is configured to change the first prism PSMa around the first rotary shaft based on first control signal Saca The angle of Axma is to change the direction of the first reflection；Second prism PSMb is configured to the light that will be reflected from the first prism PSMa It is reflected towards the second reflection direction；And the second actuator ACTb, it is configured to change the second prism based on second control signal PSMb changes the second reflection direction around the angle of the second rotary shaft Axmb with Sacb.

First prism PSMa may include the first reflecting surface RSa of inside, and the second prism PSMb may include being matched It is set to inside the second reflecting surface RSb of reflected light.

First prism PSMa can receive input light by the first entrance prism surface ISa and by the first outgoing prism Surface OSa exports the input light reflected from the first reflecting surface RSa of inside, and the second prism PSMb can pass through the second incidence Prism surface ISb receives reflected light and is reflected by the second outgoing prism surface OSb output from the second reflecting surface RSb of inside Reflected light.

First prism PSMa and the second prism PSMb is configured so that the first outgoing prism surface OSa towards the second incidence Prism surface ISb.

At this time, it is preferred that the first prism PSMa and the second prism PSMb are intersected with each other.In particular, it is preferred that first Prism PSMa and the second prism PSMb are disposed perpendicularly to each other.

Meanwhile first the refractive index of prism PSMa and the second prism PSMb can be less than 1.7, and can be in the second prism Reflectance coating is formed on the reflecting surface of PSMb and the second substrate PSMb.It therefore, can be in the first prism PSMa and the second prism Total reflection is executed in PSMb, and therefore, light RI can be transmitted on the direction of imaging sensor.

According to this, imaging sensor 620, lens devices 693 and the first prism module 692a can in one direction simultaneously Arrangement is set, while the second prism module 692b is arranged as intersecting with the first prism module 692a.

Therefore, the first prism module 692a and the second prism module 692b can be referred to as L-type double prism arrangement 692.Separately Outside, the camera 500a with this structure can be referred to as L-type camera.

It according to this configuration, can example in a first direction by the first prism module 692a and the second prism module 692b It such as rotates, and can be for example based in the counter clockwise direction ccw based on the first rotary shaft Axa in a second direction It is rotated in the counter clockwise direction ccw of second rotary shaft Axb, to execute angle compensation, to realize optical image stabilization (OIS) function.

Particularly because by using revolving actuator execute angle compensation, there are the advantages of be, no matter lens devices 693 optical zoom is low enlargement ratio or high magnification, it is sufficient to compensate only for the angle in given range.Therefore, no matter light How learn zoom, the precision of optical image stabilization (OIS) can be improved.

In addition, can be realized slim camera 600 because can realize that optimal spatial arranges in a limited space.Therefore, The present invention can be applied to mobile terminal 100 etc..

The length of Fig. 6 A diagram lens devices 693 is indicated by Wb, and the length of double prism arrangement 692 is indicated by Wpb, and And the height of lens devices 693 and double prism arrangement 692 is indicated by hb.

Because the first prism module 692a and the second prism module 692b in double prism arrangement 692 are arranged to hand over each other Fork, as shown in the mobile terminal 100b of Fig. 6 B, the moving direction of incident light RI can pass through the first prism module 692a and the Two prism module 692b change twice, and imaging sensor 620 can be disposed in the left side of mobile terminal 100b.Especially Ground, imaging sensor 620 can be arranged opposite with the side of mobile terminal 100b.

Therefore, the thickness DDb of mobile terminal 100y can not be by the length of lens devices 693 and double prism arrangement 692 And (Wb+Wpb) determine, but the height ho of height ho or imaging sensor by lens devices 693 and double prism arrangement 692 It determines.

Therefore, when the height ho of the height hb or imaging sensor of lens devices 693 and double prism arrangement 692 are designed to When low, the thickness DDb of mobile terminal 100y can be realized slimly.Therefore, it can be realized the slim camera with thin thickness 600 and the mobile terminal with slim camera 600.

Meanwhile with reference to Fig. 7 and Fig. 8, double prism arrangement 692 may include the first prism module 692a and the second prism module 692b。

First prism module 692a may include the first prism PSMa；First prism bracket PSMHa is configured to fix One prism PSMa；First yoke Yka is coupled to the rear portion of the first prism bracket PSMHa；First driving magnet DMa, is coupled to first The rear portion of yoke Yka；First coil bracket CLHa, including direction the first prism bracket PSMHa multiple protrusions outstanding, multiple protrusions Each of include opening HSSa, and be open HSSa limit the first rotary shaft Axma.

First driving coil DCLa can be disposed between first coil bracket CLHa and the first yoke Yka, the first prism Bracket PSMHa may include multiple boss BSSa, be configured to be engaged with the opening of multiple protrusions to allow the first prism PSMa is rotated about the first prism PSMa axis.

Boss BSSa in the both ends of prism bracket PSMa can be with opening in the both ends that are formed in coil brace CLHa Mouth HSSa coupling.

Meanwhile the first driving magnet DMa and driving coil DCLa in prism module 692a can form the first rotation cause Dynamic device ACTa.

For example, in order to compensate for the gyro sensor 145c as shown in motion sensor 145, particularly Fig. 3 C or Fig. 3 D The first direction movement in first direction movement and second direction movement sensed, drive control device DRC can be by the first controls Signal Saca processed is output to the first actuator ACTa in the first prism module 692a.

Specifically, the first control signal Saca based on the driving coil DCLa being applied in the first actuator ACTb, energy Enough angles for changing the first prism PSMa based on the first rotary shaft.

Meanwhile first Hall sensor HSa can sense the change in magnetic field, in order to check due to the first prism PSMa's Motion information caused by mobile.Particularly, the first Hall sensor HSa can be based on first the first prism of sensing magnetic fields PSMa's Angulation change.

Furthermore it is possible to which the motion information that will be detected by the first Hall sensor HSa, special earth's magnetic field or magnetic field change letter Breath Shsa is input to drive control device DRC.

Drive control device DRC can be based on for the control signal Saca and motion information of motion compensation, particularly magnetic field Or magnetic field changes information Shsa to execute PI control etc..Therefore, the movement of the first prism PSMa can be accurately controlled.

That is, drive control device DRC can be by receiving the information Shsa detected by the first Hall sensor HSa Closed loop is executed, and can accurately control the movement of the first prism PSMa.

Therefore, driving magnet DMa, prism bracket PSMHa and prism PSMa can be rotated based on the first rotary shaft Axa.

Meanwhile coil brace CLHa, driving coil DCLa and Hall sensor HSa can be fixed and be not based on the first rotation Axis Axa rotation.

As described above, some units in the first prism module 692a can rotate and some units can be fixed, from And it is detected based on the magnetic field signal sensed in Hall sensor HSa by handshaking caused movement.In order to execute optical picture As stablizing (OIS) to compensate the movement of the biprism as caused by hand shaking, driving magnet DMa can rotate, so that prism PSMa etc. It can rotate.Therefore, the optical image stabilization (OIS) on first direction can be accurately carried out.

It meanwhile with reference to Fig. 8, the second prism module 692b may include the second prism PSMb；Second prism bracket PSMHb, It is configured to fix the second prism PSMb；Second yoke Ykb is coupled to the rear portion of the second prism bracket PSMHb；Second driving magnet DMb is coupled to the rear portion of the second yoke Ykb；Second coil brace CLHb, including it is outstanding more towards the second prism bracket PSMHb A protrusion, each of multiple protrusions include opening, and the second rotary shaft of limited opening Axmb.Therefore, the second driving magnetic Body DMb, the second prism bracket PSMHb and the second prism PSMb can be rotated based on the second rotary shaft Axmb.

Second driving coil DCLb can be arranged between the second coil brace CLHb and the second yoke Ykb, and the second rib Mirror support PSMHb may include multiple boss BSSa, be configured to be engaged with the opening of multiple protrusions to allow the second prism PSMb is rotated about the second prism PSMb axis.

Coil brace CLHb can have the protrusion outstanding on the direction of prism bracket PSMb at both ends, and have and divide The opening HSSb not formed in protrusion.Coil brace CLHb is capable of fixing driving coil DCLb.

Prism bracket PSMb can have the protrusion BSSb outstanding on the direction of coil brace CLHb at both ends.

Boss BSSb in the both ends of prism bracket PSMb can be with the opening at the both ends for being formed in coil brace CLHb HSSb coupling.

Meanwhile the second driving magnet DMb and driving coil DCLb in prism module 692b can form the second rotation cause Dynamic device ACTb.

For example, in order to compensate for the gyro sensor as shown in motion sensor 145, particularly Fig. 3 C or Fig. 3 D Second direction movement in the movement of first direction that 145c is sensed and second direction movement, drive control device DRC can be by the Two control signal Sacb are output to the second actuator ACTb in the second prism module 692b.

Specifically, the second control signal Sacb based on the driving coil DCLb being applied in the second actuator ACTb, energy Enough angles for changing the second prism PSMb based on the second rotary shaft.

Meanwhile second Hall sensor HSb can sense the change in magnetic field, in order to check due to the second prism PSMb's Motion information caused by mobile.Particularly, the second Hall sensor HSb can be based on second the second prism of sensing magnetic fields PSMb's Angulation change.

Furthermore it is possible to which the motion information, particularly magnetic field that are detected by the second Hall sensor HSb or magnetic field are changed letter Breath Shsb is input to drive control device DRC.

Drive control device DRC can be based on for the control signal Sacb and motion information of motion compensation, particularly magnetic field Or magnetic field changes information Shsb to execute PI control etc..Therefore, the movement of the second prism PSMb can be accurately controlled.

That is, drive control device DRC can be by receiving the information Shsb detected by the second Hall sensor HSb Closed loop is executed, and can accurately control the movement of the second prism PSMb.

Therefore, driving magnet DMb, prism bracket PSMHb and prism PSMb can be rotated based on the second rotary shaft Axb.

Meanwhile coil brace CLHb, driving coil DCLb and Hall sensor HSb can be fixed and be not based on the second rotation Axis Axb rotation.

As described above, some units in the second prism module 692b can rotate and some units can be fixed, To be detected based on the magnetic field signal sensed in Hall sensor HSb by handshaking caused movement.In order to execute optics Image stabilization (OIS) is with the movement of compensation biprism as caused by hand shaking, and driving magnet DMb can rotate, so that prism PSMb Etc. can rotate.Therefore, the optical image stabilization (OIS) in second direction can be accurately carried out.

For example, as shown in Figure 7, when hand shaking the first prism PSMa due to user is based on the first rotary shaft Axa along up time When needle direction CCW rotates, drive control device DRC can control the first prism PSMa, first sensor magnet SMa etc. by making With revolving actuator, particularly the first driving magnet DMa and the first driving coil DCLa, the first rotary shaft Axa is based on along the inverse time CCW rotation in needle direction is to execute optical image stabilization (OIS) to compensate the movement of the biprism as caused by hand shaking.

Particularly, when the first control signal Saca from drive control device DRC is applied in the first actuator ACTa The first driving coil DCLa when, Lorentz force can be generated between the first driving coil DCLa and the first driving magnet DMa, So that the first driving magnet DMa can be rotated with CCW in the counterclockwise direction.

At this point, the first Hall sensor Hsa can be rotated by the CCW counterclockwise of first sensor magnet SMa to detect The change of variable magnetic field.

In addition, drive control device DRC can be closed based on the information Shsa execution detected by the first Hall sensor HSa Ring, so as to precisely control the CCW counterclockwise rotation of the first driving magnet DMa.

For another example, as shown in Figure 7, when hand shaking the second prism PSMb due to user is based on the second rotary shaft When Axb CCW rotation along clockwise direction, drive control device DRC can control the second prism PSMb, second sensor magnet SMb Deng to be based on the second rotation by using the second revolving actuator, particularly the second driving magnet DMb and the second driving coil DCLb CCW rotates shaft Axb in the counterclockwise direction, compensates the fortune of the biprism as caused by hand shaking to execute optical image stabilization (OIS) It is dynamic.

Specifically, when the second control signal Sacb from drive control device DRC is applied in the second actuator ACTb The second driving coil DCLb when, Lorentz force can be generated between the second driving coil DCLb and the second driving magnet DMb, Enable the second driving magnet DMb in the counterclockwise direction CCW rotate.

At this point, the second Hall sensor Hsb can be rotated by the CCW counterclockwise of first sensor magnet SMa to detect The change of variable magnetic field.

In addition, drive control device DRC can be closed based on the information Shsa execution detected by the second Hall sensor HSa Ring, so as to precisely control the CCW counterclockwise rotation of the first driving magnet DMa.

As described above, it is mobile to depend on hand shaking, the first prism module 692a and the second prism module 692b can be based on the One rotary shaft Axa and the second rotary shaft Axb separately drive.Therefore, multiple directions can quickly and accurately be executed Optical image stabilization (OIS).

Meanwhile when the first prism PSMa is mobile with the first angle of the first direction of the first rotary shaft Axa, with first In the opposite second direction of the first direction of rotary shaft Axa, the first prism PSMa can be changed to by the first actuator ACTa Two angle, θs 2, second angle θ 2 are the half of first angle θ 1.According to this, although user's hand shaking moves, can be used with being less than The angle of family hand shaking movement executes motion compensation, so as to execute accurate optical image stabilization (OIS).Additionally it is possible to Reduce power consumption.

Meanwhile when the second prism PSMb is mobile with third angle θ 3 on the third direction of the second rotary shaft Axb, with In the opposite fourth direction of the third direction of second rotary shaft Axb, the second actuator ACTb can change the second prism PSMb At fourth angle θ 4, fourth angle θ 4 is the half of third angle θ 3.It, can be with small although user's hand shaking moves according to this Motion compensation is executed in the angle of user's hand shaking movement, so as to execute accurate optical image stabilization (OIS).In addition, also Power consumption can be reduced.This is described below with reference to Fig. 9 A to Fig. 9 C.

Fig. 9 A to 9C is the figure for explaining hand shaking movement and the optical image stabilization (OIS) according to hand shaking movement.

It hereinafter, for the ease of explaining, will description imaging sensor 620, the first prism PSMa and objects in front OBL.

Firstly, Fig. 9 A diagram is disposed in objects in front OBL and imaging sensor when there is no the movement of the hand shaking of user The first prism PSMa between 620 is fixed.

With reference to Fig. 9 A, the reflecting surface SFa of imaging sensor 620 and the first prism PSMa can have angle, θ m, and Angle between the reflecting surface SFa and objects in front OBL of first prism PSMa can be identical angle, θ m.Here, angle, θ M can be about 45 degree.

According to this, imaging sensor 620 can pass through the light of reflecting surface SFa reflection and input by the first prism PSMa The light of objects in front OBL is captured, and the light of capture is converted into electric signal.Therefore, the image that can be realized objects in front OBL turns It changes.

Next, Fig. 9 B diagram is arranged in when generating the hand shaking of user of first angle θ 1 on CCW in the counterclockwise direction CCW rotates first angle θ 1 to the first prism PSMa between objects in front OBL and imaging sensor 620 in the counterclockwise direction.

With reference to Fig. 9 B, the imaging sensor 620 and reflecting surface SFa of the first prism PSMa of rotation can have angle, θ M, but the angle between the reflecting surface SFa and objects in front OBL of the first prism PSMa rotated can be less than angle, θ m θ n.

In other words, the reflecting surface SFa of imaging sensor 620 and the first prism PSMa of rotation have angle, θ m, and And objects in front OBL is not present on the direction of the angle, θ m of the reflecting surface SFa of the first prism PSMa away from rotation.

Therefore, imaging sensor 620 cannot be caught by the light for being reflected and being inputted by the reflecting surface SFa of the first prism PSMa Obtain the light of objects in front OBL.

Therefore, the first actuator ACTa can make the first prism PSMa in the clockwise direction on CW with the rotation of second angle θ 2 Turn, second angle θ 2 is the half of first angle θ 1.

Fig. 9 C illustrates the first prism PSMa and rotates second angle θ 2 on CW in the clockwise direction, and second angle θ 2 is first The half of angle, θ 1, in order to execute optical image stabilization (OIS) to compensate the movement of the biprism as caused by the hand shaking of user.

Therefore, as Fig. 9 A, the reflecting surface SFa of the first prism PSMa of imaging sensor 620 and rotation can have Angled θ m, and the angle between the reflecting surface SFa and objects in front OBL of the first prism PSMa rotated can be θ m.

According to this, imaging sensor 620 can pass through the light of reflecting surface SFa reflection and input by the first prism PSMa The light of objects in front OBL is captured, and converts the light to electric signal.Therefore, it although hand shaking, is still able to pass through optical image stabilization (OIS) the image conversion of objects in front OBL is steadily realized.

Figure 10 is the first prism module 692a from Fig. 6 A Fig. 7 in a downward direction of the top of the first rotary shaft Axa Figure.

According to the prism module 692a of Figure 10, prism PSMa can be disposed on the first surface of prism bracket PSMHa, And yoke Yka can be arranged on a second surface, which is the rear surface of the first surface of prism bracket PSMHa. Particularly, the first surface of yoke Yka can be arranged on the second surface of prism bracket PSMHa.

Meanwhile sensor magnet SMa can be arranged in the upside of yoke Yka, and Hall sensor Hsaz can be arranged To be separated with sensor magnet SMa.

That is, yoke Yka can be around rotation in the state that rotary shaft Axa is positioned in the vertical direction on ground Shaft AXa arrangement, sensor magnet SMa can be arranged apart with yoke Yka, and Hall sensor Hsa can be with sensor magnetic Body SMa is arranged apart.

At this point it is possible to be increased based on rotary shaft AXa according to the sequence of yoke Yka, sensor magnet SMa and Hall sensor Hsa Add separating distance.

Meanwhile yoke Yka and sensor magnet SMa can be separated from each other in the vertical direction on ground, and sensor magnetic Body SMa and Hall sensor Hsa can be separated from each other in the horizontal direction.

That is, the septal direction and sensor magnet SMa and Hall between yoke Yka and sensor magnet SMa pass Septal direction between sensor Hsa can be intersected with each other.

Meanwhile the position of Hall sensor Hsa and sensor magnet SMa are able to carry out various modifications.

At this point, as mentioned in Fig. 6 A to the description of Fig. 8, when the first prism PSMa is based on due to the hand shaking of user First rotary shaft Axa is driven when rotating on the first clockwise direction CCW by using the first revolving actuator, particularly first Dynamic magnet DMa and the first driving coil, drive control device DRC can control the first prism PSMa, first sensor magnet SMa etc. With based on the first rotary shaft Axa, CCW rotation is caused with executing optical image stabilization (OIS) to compensate by hand shaking in the counterclockwise direction Biprism it is mobile.

Particularly, when the first control signal Saca from drive control device DRC is applied in the first actuator ACTa The first driving coil DCLa when, Lorentz force can be generated between the first driving coil DCLa and the first driving magnet DMa, Enable the first driving magnet DMa in the counterclockwise direction CCW rotate.

At this point, the first Hall sensor Hsa can be rotated by the CCW counterclockwise of first sensor magnet SMa to sense The change of variable magnetic field.

Meanwhile when the range of the rotation angle of the clockwise direction CW due to caused by hand shaking is about in 10 degree and -10 degree Between when, by the angle compensation range of the rotation of counter clockwise direction CCW can about as due to caused by hand shaking clockwise Between 5 degree of the half of the rotation angle range of direction CW and -5 degree.

Meanwhile with reference to Figure 10, even if the rotation angle of clockwise direction CW is smaller when hand shaking is smaller, Hall sensor Has It is able to carry out accurate detection, to improve the angle compensation precision of counter clockwise direction CCW rotation.

Meanwhile the first prism in the first prism module 692a and the second prism module 692b based on Fig. 6 A to Fig. 8 Module 692a provides the description of Figure 10, and can also be applied to the first prism module 692b.However, the present invention is not limited to This, and can also be applied to the second prism module 692b.

Meanwhile, it is capable in mobile terminal 100, vehicle, TV, unmanned plane, robot, the robot cleaner of such as Fig. 2 Deng various electronic devices in using with the first prism module 692a and the second prism module described with reference to Fig. 6 A to Figure 10 The prism apparatus 692 of 692b.

As is apparent from the above description, according to an embodiment of the invention, providing a kind of prism apparatus, comprising: first Prism is configured to reflect input light towards the first reflection direction；First actuator is configured to change based on first control signal Become the first prism around the angle of the first rotary shaft to change the first reflection direction；Second prism is configured to anti-towards second It penetrates direction and reflects the light emitted from the first prism；And second actuator, it is configured to change second based on second control signal Prism surrounds the angle of the second rotary shaft to change the second reflection direction.Therefore, it can be realized the optical imagery for biprism Stablize (OIS).Particularly, by rotating independently biprism, optical image stabilization can be realized based on multiple rotary shafts (OIS)。

First prism includes internal first reflecting surface, and the second prism includes the inside second for being configured to reflected light Reflecting surface.Therefore, the light from the first prism can steadily be transmitted to the second prism.

Second rotary shaft of first rotary shaft of the first prism perpendicular to the second prism.Therefore, because the first prism and The optical path of two prisms is different from each other, so can be realized L-type camera, and therefore can be realized slim with reduced thickness Camera.

In response to making the first prism around the first rotary shaft rotation first angle and making the second prism around the second rotation Axis rotate second angle movement, the first actuator be configured in response to first control signal make the first prism with first party Third angle is rotated on opposite third direction, the second actuator, which is configured in response to second control signal, makes the second prism Fourth angle is rotated along the fourth direction opposite with second direction, wherein third angle is the half of first angle, and wherein Fourth angle is the half of second angle.Therefore, the offset angle of optical image stabilization (OIS) becomes smaller, and allows to improve light Learn the precision of image stabilization (OIS).

Prism apparatus further include: the first Hall sensor is configured to the angle based on first the first prism of sensing magnetic fields Change；With the second Hall sensor, it is configured to the angulation change based on second the second prism of sensing magnetic fields.Therefore, Neng Goushi The optical image stabilization (OIS) of existing biprism.

Prism apparatus further include: the first prism bracket is configured to fix the first prism；First yoke is coupled to the first rib The rear portion of mirror support；First driving magnet is coupled to the rear portion of the first yoke；First coil bracket, including the first prism branch of direction Frame multiple protrusions outstanding, each of plurality of protrusion include opening, and wherein the first rotary shaft of limited opening, In the first driving coil be disposed between first coil bracket and the first yoke, wherein the first prism bracket includes multiple boss, These boss are configured to engage with the opening of multiple protrusions, to allow the first prism to rotate around the first prism axis.Therefore, One driving magnet, the first prism bracket and the first prism can be rotated based on the first rotary shaft.

Prism apparatus further include: the second prism bracket is configured to fix the second prism；Second yoke is coupled to the second rib The rear portion of mirror support；Second driving magnet is coupled to the rear portion of the second yoke；Second coil brace, including the second prism branch of direction Frame multiple protrusions outstanding, each of plurality of protrusion include opening, and wherein the second rotary shaft of limited opening, In the second driving coil be disposed between the second coil brace and the second yoke, wherein the second prism bracket includes multiple boss, These boss are configured to engage with the opening of multiple protrusions, to allow the second prism to rotate around the second prism axis.Therefore, Two driving magnets, the second prism bracket and the second prism can be rotated based on the second rotary shaft.

The refractive index of first prism and the second prism is 1.7 or bigger, and therefore, can be in the first prism and the second rib Total reflection is executed in mirror, and therefore, light can transmit on the direction of imaging sensor.

The refractive index of first prism and the second prism is less than 1.7, and wherein in the reflection of the first prism and the second prism Reflectance coating is formed on surface.Therefore, total reflection can be executed in the first prism and the second prism, and therefore, light can It is transmitted on the direction of imaging sensor.

According to an embodiment of the invention, providing a kind of camera apparatus, comprising: gyro sensor is configured to sense phase The movement of machine device；Double prism arrangement is configured to guide input light；Lens devices, including it is multiple be configured to adjust with reality The lens of existing variable-focus；And imaging sensor, it is configured to generate picture signal based on input light, wherein double prism arrangement Include: the first prism, is configured to reflect input light towards the first reflection direction；First actuator is configured to based on first Signal the first prism of change is controlled around the angle of the first rotary shaft to change the first reflection direction；Second prism, is configured to Light from the first prismatic reflection is reflected towards the second reflection direction；And second actuator, it is configured to based on the second control Signal change the second prism around the second rotary shaft angle to change the second reflection direction, for exporting towards lens devices and The light of imaging sensor reflection is defeated.Therefore, it can be realized the optical image stabilization (OIS) for biprism.Particularly, by only Biprism is on the spot rotated, can realize optical image stabilization (OIS) based on multiple rotary shafts.

Camera apparatus further include: the first Hall sensor is configured to based on the first sensing magnetic fields by caused by moving the The angulation change of one prism；With the second Hall sensor, it is configured to based on the second sensing magnetic fields second rib caused by moving The angulation change of mirror.Therefore, it can be realized the optical image stabilization (OIS) of biprism.

Camera apparatus further include: drive control device is configured to generate first control signal and second control signal, be used for Stablize by imaging sensor captured image, wherein first control signal is based on angle caused by first prism as caused by mobile Degree changes and angulation change of the second control signal based on second prism caused by mobile.Therefore, it can be realized biprism Optical image stabilization (OIS).

Imaging sensor receives corresponding with the object shot from double prism arrangement light, at the same imaging sensor perpendicular to The object that is taken and positioned.Therefore, it can be realized L-type camera, and therefore can be realized the fibre with reduced thickness Thin camera.

One or more in multiple lens is moved along axis to realize variable-focus, and axis enters the perpendicular to input light The direction on one entrance prism surface and the light exported by the first outgoing prism surface from the first prism.Therefore, because the first rib The optical path of mirror and the second prism is different from each other, can be realized L-type camera, and therefore can be realized the fibre with reduced thickness Thin camera.

Camera apparatus further includes drive control device, in which: in response to making the first prism around the first rotary shaft rotation first Angle and make the second prism around the movement of the second rotary shaft rotation second angle, drive control device is configured to: generating the One control signal so that the first actuator along the third direction opposite with first direction by the first prism rotate third angle, and Second control signal is generated so that the second prism is rotated the 4th in the fourth direction opposite with second direction by the second actuator Angle, wherein third angle is the half of first angle, and wherein fourth angle is the half of second angle.Therefore, optics The offset angle of image stabilization (OIS) becomes smaller, and allows to improve the precision of optical image stabilization (OIS).

Camera apparatus further include: the first prism bracket is configured to fix the first prism；First yoke is coupled to the first rib The rear portion of mirror support；First driving magnet of the first driver, is coupled to the rear portion of the first yoke；First coil bracket, including court Outstanding multiple raised to the first prism bracket, each of plurality of protrusion includes opening, and wherein limited opening First rotary shaft, wherein the first driving coil of the first actuator is disposed between first coil bracket and the first yoke, wherein First prism bracket includes multiple boss, these boss are configured to engage with the opening of multiple protrusions, to allow the first prism It is rotated around the first prism axis.Therefore, the first driving magnet, the first prism bracket and the first prism can be based on the first rotary shaft Rotation.

Camera apparatus further include: the second prism bracket is configured to fix the second prism；Second yoke is coupled to the second rib The rear portion of mirror support；Second driving magnet of the second actuator, is coupled to the rear portion of the second yoke；Second coil brace, including court Outstanding multiple raised to the second prism bracket, each of plurality of protrusion includes opening, and wherein limited opening Second rotary shaft, wherein the second driving coil of the second actuator is disposed between the second coil brace and the second yoke, wherein Second prism bracket includes multiple boss, these boss are configured to engage with the opening of multiple protrusions, to allow the second prism It is rotated around the second prism axis.Therefore, the second driving magnet, the second prism bracket and the second prism can be based on the second rotary shaft Rotation.

Hereinbefore, although describing the present invention by reference to exemplary embodiment and attached drawing, but the invention is not restricted to this, But can in not departing from following following claims in the case where the spirit and scope of claimed invention by institute of the present invention The technical staff in the field of category carry out various modifications and changes.

Claims

1. a kind of prism apparatus for camera apparatus, the prism apparatus include:

First prism, first prism are configured to reflect input light towards the first reflection direction；

First actuator, first actuator are configured to change first prism around first based on first control signal The angle of rotary shaft is to change first reflection direction；

Second prism, second prism are configured to the light from first prismatic reflection is anti-towards the second reflection direction It penetrates；And

Second actuator, second actuator are configured to change second prism around second based on second control signal The angle of rotary shaft is to change second reflection direction.

2. prism apparatus according to claim 1, wherein first prism includes internal first reflecting surface, and Second prism includes internal second reflecting surface, and first reflecting surface of inside and internal second reflecting surface are configured At the reflection light.

3. prism apparatus according to claim 2, in which:

First prism is configured to receive the input light by the first entrance prism surface and by the first outgoing rib Mirror surface exports the input light reflected from first reflecting surface of inside；And

Second prism is configured to receive reflected light by the second entrance prism surface and by the second outgoing rib Mirror surface exports the reflected light reflected from second reflecting surface of inside.

4. prism apparatus according to claim 3, wherein first prism and the second prism are configured so that described First outgoing prism surface is towards second entrance prism surface.

5. prism apparatus according to claim 1, wherein first rotary shaft of first prism is perpendicular to described Second rotary shaft of second prism.

6. prism apparatus according to claim 1, in which:

In response to making first prism around first rotary shaft rotation first angle and surrounding second prism The movement of the second rotary shaft rotation second angle,

First actuator is configured to, in response to the first control signal make first prism with the first party Third angle is rotated on opposite third direction,

Second actuator is configured to, in response to the second control signal make second prism with the second party Fourth angle is rotated in opposite fourth direction,

Wherein, the third angle is the half of the first angle, and

Wherein, the fourth angle is the half of the second angle.

7. prism apparatus according to claim 1, further includes:

First Hall sensor, first Hall sensor are configured to the angle based on the first prism described in the first sensing magnetic fields Degree changes；With

Second Hall sensor, second Hall sensor are configured to the angle based on the second prism described in the second sensing magnetic fields Degree changes.

8. prism apparatus according to claim 7, wherein first actuator includes that the first driving magnet and first drive Moving winding.

9. prism apparatus according to claim 8, further includes:

First prism bracket, first prism bracket are configured to fix first prism；

First yoke, first yoke are coupled to the rear portion of first prism bracket；

First driving magnet, first driving magnet are coupled to the rear portion of first prism bracket；

First coil bracket, the first coil bracket include towards first prism bracket multiple protrusions outstanding, wherein Each of the multiple protrusion includes opening, and wherein the first rotary shaft described in the limited opening；

Wherein, first driving coil is disposed between the first coil bracket and first yoke,

Wherein, first prism bracket includes multiple boss, and the boss is configured to open with described in the multiple protrusion Mouth engagement is to allow first prism to rotate around first prism axis.

10. prism apparatus according to claim 9, wherein second actuator includes the second driving magnet and second Driving coil.

11. prism apparatus according to claim 10, further includes:

Second prism bracket, second prism bracket are configured to fix second prism；

Second yoke, second yoke are coupled to the rear portion of second prism bracket；

Second driving magnet, second driving magnet are coupled to the rear portion of second yoke；

Second coil brace, second coil brace include towards second prism bracket multiple protrusions outstanding, wherein Each of the multiple protrusion includes opening, and wherein, the second rotary shaft described in the limited opening,

Wherein, second driving coil is disposed between second coil brace and second yoke,

Wherein, second prism bracket includes multiple boss, and the multiple boss is configured to the institute with the multiple protrusion Opening engagement is stated to allow second prism to rotate around second prism axis.

12. prism apparatus according to claim 1, wherein the refractive index of first prism and second prism is 1.7 or bigger.

13. prism apparatus according to claim 1, wherein the refractive index of first prism and second prism is small In 1.7, and

Wherein, reflectance coating is formed on the reflecting surface of first prism and second prism.

14. a kind of camera apparatus, comprising:

Gyro sensor, the gyro sensor are configured to sense the movement of the camera apparatus；

Double prism arrangement, the double prism arrangement are configured to guide input light；

Lens devices, the lens devices include multiple lens, and the multiple lens are configured to be conditioned varifocal to realize Point；And

Imaging sensor, described image sensor are configured to based on the input photogenerated picture signal,

Wherein, the double prism arrangement includes according to claim 1 to prism apparatus described in any one in 13.

15. camera apparatus according to claim 14 further includes drive control device, in which:

In response to making first prism around first rotary shaft rotation first angle and surrounding second prism The movement of the second rotary shaft rotation second angle, the drive control device are configured to:

Generate the first control signal so that first actuator by first prism opposite to the first direction Third direction on rotate third angle；And

Generate the second control signal so that second actuator by second prism opposite with the second direction Fourth direction on rotate fourth angle,

Wherein, the third angle is the half of the first angle, and

Wherein, the fourth angle is the half of the second angle.