CN1591070A - Electronic apparatus - Google Patents

Abstract

The present invention provides an electronic device which comprises lens unit and can alleviate the processing load of the camera function of the lens unit, and the device is arranged with the following components: a host machine circuit which does specified function control basing on the picture signal generated by the variable focus lens group; an optical lens system which contains variable lens group and focusing lens group; a driving circuit and a driving motor for driving the optical lens system; a camera shooting part which generates the picture signal according to the light passing the optical lens system; and a driving control circuit which sets the lens position of the variable focus lens group according to the control signal of the assigned zoom function and can set the scanning area of focusing lens group corresponding each function of a plurality of zoom functions and leads to the independent or continuous scanning of the focusing lens group in one or a plurality of scanning areas basing on the image signal generated by the camera shooting part and according to the zoom function.

Description

Electronic installation

Technical field

The present invention relates to for example be equipped with the electronic installation such as portable phone, PDA (personal digital assistant), digital camera, notebook computer of camera functions such as Zoom lens unit.

Background technology

For the camera function that for example carries on the electronic equipment of portable phone etc., there is this tendency, that is, trends towards the image high-definition gradually, in addition, in digital camera, also introduce optical change focal length or automatic focus controlling function (auto-focus function) gradually.

In the past, as the automatic focus of general digital camera, for example known had a disclosed video auto-focusing mode in the patent documentation 1 (spy opens the 2001-343581 communique).

In above-mentioned digital camera in the past, owing to require self-focusing high speed and high precision, so lens constitute the many and control complexity of sheet number.

On the other hand, for example as the major function of the portable phone of electronic installation, be conversation or data transmission etc., carrying out requiring easy control for alleviating above-mentioned load on the baseband LSI of work management (Large-scale integration) based on camera function.

In addition, the power consumption that causes owing to the high performance of camera function increases, and has influence on the function that above-mentioned conversation or data transmission etc. should have originally sometimes.

In addition,, become an operated electronic unit in the electronic installation of portable phone etc.,, wish the key element that has the user to set in order to make the electronic installation of a camera unit corresponding to multiple portable phone etc. as camera unit for camera function.

But, for example in the electronic installation of portable phone etc., when making lens unit have anamorphosis function (changing the focal length function) and automatic focus controlling function, owing in corresponding to the sweep limit of anamorphosis function, carry out automatic focus controlling by scanning focused lens combination, therefore for example frequently change subject the user, when frequently changing anamorphosis function, just must change sweep limit or corresponding to the contents processing of anamorphosis function at every turn, thereby have the problem of handling trouble.

Summary of the invention

The 1st purpose of the present invention is to provide a kind of electronic installation, and it has lens unit, can alleviate the processing load of the camera function of lens unit.

In addition, the 2nd purpose of the present invention is to provide a kind of and need not frequently changes anamorphosis function and can carry out the electronic installation of automatic focus controlling.

In order to achieve the above object, the 1st electronic installation of the present invention, have Zoom lens unit and host computer control circuit, described host computer control circuit, the function of tonic chord of control device, at least the picture signal that produces according to driven described Zoom lens unit by the control signal of specifying anamorphosis function is that the above-mentioned functions of regulation is controlled, above-mentioned Zoom lens unit, have: the optical system that on optical axis, disposes the 1st lens combination and the 2nd lens combination at least successively, drive the driving mechanism of at least one side in above-mentioned the 1st lens combination and the 2nd lens combination along above-mentioned optical axis according to drive signal, based on image mechanism via the photogenerated picture signal of above-mentioned optical system, and camera control circuit, described camera control circuit, according to control signal based on the appointment anamorphosis function of above-mentioned host computer control circuit, set the lens position of above-mentioned the 1st lens combination, the drive signal that the picture signal that generates based on above-mentioned image mechanism will make above-mentioned the 2nd lens combination drive in the sweep limit corresponding to above-mentioned anamorphosis function exports above-mentioned driving mechanism to, above-mentioned camera control circuit, can set sweep limit, will export above-mentioned driving mechanism to according to the drive signal that above-mentioned anamorphosis function makes above-mentioned the 2nd lens combination carry out independence or continuous sweep in one or more sweep limits corresponding to above-mentioned the 2nd lens combination of each function in a plurality of anamorphosis functions.

Preferred following structure, promptly, corresponding to the 1st sweep limit of the 1st anamorphosis function and the adjacent setting of the 2nd sweep limit corresponding to the 2nd anamorphosis function, above-mentioned camera control circuit, when having received, export the drive signal that makes above-mentioned the 2nd lens combination in two scopes of above-mentioned the 1st sweep limit and the 2nd sweep limit, carry out continuous sweep to above-mentioned driving mechanism corresponding to the scanning of the 3rd anamorphosis function different indication with the above-mentioned the 1st and the 2nd anamorphosis function.

Preferred following structure, promptly, as above-mentioned anamorphosis function, also comprise the 4th anamorphosis function, above-mentioned camera control circuit, when above-mentioned host computer control circuit has received the control signal of representing above-mentioned the 4th anamorphosis function, will make above-mentioned the 2nd lens combination export above-mentioned driving mechanism in drive signal corresponding to the 3rd above-mentioned the 4th anamorphosis function, different sweep limit interscan with the above-mentioned the 1st and the 2nd sweep limit.

Preferred following structure, promptly, for above-mentioned anamorphosis function comprises the 1st anamorphosis function at least, the 2nd anamorphosis function and the 3rd anamorphosis function, above-mentioned camera control circuit, when above-mentioned host computer control circuit has received the control signal of representing above-mentioned the 1st anamorphosis function, export the drive signal that makes the 2nd lens combination in the 1st sweep limit interscan to above-mentioned driving mechanism, when above-mentioned host computer control circuit has received the control signal of representing above-mentioned the 2nd anamorphosis function, export the drive signal that makes the 2nd lens combination in the 2nd sweep limit interscan adjacent to above-mentioned driving mechanism with above-mentioned the 1st sweep limit, when above-mentioned host computer control circuit has received the control signal of representing above-mentioned the 3rd anamorphosis function, will make the 2nd lens combination export above-mentioned driving mechanism in drive signal corresponding to the 3rd sweep limit interscan different of above-mentioned the 3rd anamorphosis function with above-mentioned the 1st sweep limit and the 2nd sweep limit.

Preferred following structure, promptly, above-mentioned camera control circuit, when having received the control signal of the lens position setting that makes above-mentioned the 2nd lens combination from above-mentioned host computer control circuit, the drive signal that the lens position that makes above-mentioned the 2nd lens combination to above-mentioned setting is driven exports above-mentioned control gear to.

Preferred following structure, promptly, above-mentioned camera control circuit, when having received the control signal of expression setting-up time and continuously automatic focus controlling from above-mentioned host computer control circuit, will make above-mentioned the 2nd lens combination scan and stop at focusing position, export above-mentioned driving mechanism to according to the picture signal of above-mentioned image mechanism shooting through the drive signal that makes above-mentioned the 2nd lens combination scanning behind the above-mentioned setting-up time once more and stop on the focusing position.

Preferred following structure, promptly, above-mentioned camera control circuit, when having received the control signal that stops to indicate of representing above-mentioned continuously automatic focus controlling from above-mentioned host computer control circuit, the drive signal that the driving that makes above-mentioned the 2nd lens combination is stopped to export above-mentioned driving mechanism to.

Preferred following structure, promptly, above-mentioned camera control circuit, in the process of at least one side in above-mentioned the 1st lens combination of above-mentioned drive mechanism and above-mentioned the 2nd lens combination, when above-mentioned host computer control circuit has received control signal, output makes above-mentioned driving mechanism continue to drive the drive signal of at least one side in above-mentioned the 1st lens combination and above-mentioned the 2nd lens combination, and after above-mentioned driving finishes, and carries out corresponding to the processing from the control signal of above-mentioned host computer control circuit.

Preferred following structure, that is, above-mentioned camera control circuit, when cutting off the electricity supply, the drive signal of the lens position when above-mentioned the 1st lens combination and above-mentioned the 2nd lens combination being stopped at cut off the electricity supply exports above-mentioned driving mechanism to.

Preferred following structure, that is, above-mentioned camera control circuit comprises: image processing circuit, it exports the picture signal that above-mentioned image mechanism generates, and output makes the timing signal that carries out automatic focus controlling; Drive and Control Circuit, it is when above-mentioned image processing circuit has received above-mentioned timing signal, picture signal according to above-mentioned image processing circuit output, to make the drive signal that at least one side drives in above-mentioned the 1st lens combination and above-mentioned the 2nd lens combination export above-mentioned driving mechanism to, above-mentioned driving mechanism comprises: in the moving area of above-mentioned the 1st lens combination and above-mentioned the 2nd lens combination, to above-mentioned the 1st lens combination and above-mentioned the 2nd lens combination with the direction of above-mentioned optical axis almost parallel at least one leading axle of channeling conduct; Accommodate above-mentioned the 1st lens combination, be formed with the 1st lens moving frame body in the 1st directed section that guides by clamping part and by above-mentioned leading axle with the side of above-mentioned optical axis approximate vertical the upwardly extending the 1st; Accommodate above-mentioned the 2nd lens combination, be formed with the 2nd lens moving frame body in the 2nd directed section that guides by clamping part and by above-mentioned leading axle with the side of above-mentioned optical axis approximate vertical the upwardly extending the 2nd; Moving area and row arrangement with respect to above-mentioned the 1st lens combination and above-mentioned the 2nd lens combination, buckle the above-mentioned the 1st and the 2nd lens moving frame body the 1st and the 2nd by clamping part, according to can being the rotation of the rotary body that rotates of center with axle with above-mentioned leading axle almost parallel, make said lens move the cam gear that framework moves along above-mentioned leading axle, the rotary body of above-mentioned cam gear rotates according to the drive signal that produces based on above-mentioned Drive and Control Circuit.

Preferred following structure, promptly, above-mentioned image processing circuit, picture signal according to above-mentioned image mechanism generation, the data of the accumulated value of the stipulated time of the above-mentioned picture signal of output expression, above-mentioned Drive and Control Circuit is when above-mentioned image processing circuit receives timing signal, and according to the above-mentioned data of above-mentioned image processing circuit output, the drive signal that above-mentioned the 2nd lens combination will be driven exports above-mentioned driving mechanism to.

Preferred following structure, promptly, above-mentioned camera control circuit, when the control signal of the requirement that has received the expression status signals from above-mentioned host computer control circuit, the picture signal that generates according to above-mentioned image mechanism generates the status signals of representing above-mentioned drive mechanism state, export the status signals of above-mentioned generation to above-mentioned host computer control circuit, above-mentioned host computer control circuit is held the driving condition of above-mentioned Zoom lens unit according to the above-mentioned condition signal, thereby carries out the function control based on the regulation of above-mentioned picture signal.

Preferred following structure, that is, above-mentioned the 1st lens combination plays a role as lens of variable focal length, and above-mentioned the 2nd lens combination plays a role as condenser lens.

Can alleviate the processing load of the camera function of lens unit according to the present invention.

Can frequently change anamorphosis function according to the present invention in addition and carry out automatic focus controlling.

Description of drawings

Fig. 1 is the functional block diagram of expression as an embodiment of the portable phone of electronic installation of the present invention.

Fig. 2 is the figure that is used to illustrate the optical lens system of electronic installation shown in Figure 1.

Fig. 3 is expression sends an object lesson of information instruction, sign indicating number, command content to Zoom lens unit from portable phone portion shown in Figure 1 figure.

Fig. 4 is the figure that is used to illustrate the action of electronic installation shown in Figure 1.

Fig. 5 is the continuous figure of the work of focus controlling automatically that is used to illustrate electronic installation shown in Figure 1.

Fig. 6 is the process flow diagram that is used to illustrate the action of electronic installation shown in Figure 1.

Fig. 7 is the process flow diagram that is used to illustrate the action of electronic installation shown in Figure 1.

Fig. 8 is the stereoscopic figure when observing as the face side of the Zoom lens unit of change of the present invention times camera head.

Fig. 9 is the stereoscopic figure when observing as the rear side of the Zoom lens unit of change of the present invention times camera head.

Figure 10 is the front view as the Zoom lens unit of change of the present invention times camera head.

Figure 11 is the vertical view as the Zoom lens unit of change of the present invention times camera head.

Figure 12 is the sectional view on the A-A line direction of arrow of Figure 11.

Figure 13 is the sectional view on the B-B line direction of arrow of Figure 11.

Figure 14 is the 1st lens moving frame body and the 2nd lens moving frame body and the 1st leading axle and the 2nd leading axle, the configuration of cam gear and the stereographic map of matching relationship of representing present embodiment from a positive side.

Figure 15 is that a side is represented the 1st lens moving frame body and the 2nd lens moving frame body and the 1st leading axle and the 2nd leading axle, the configuration of cam gear and the stereographic map of matching relationship of present embodiment from behind.

Figure 16 is the 1st lens moving frame body and the 2nd lens moving frame body and the 1st leading axle and the 2nd leading axle, the configuration of cam gear and the stereographic map of matching relationship of representing present embodiment from a top side.

Figure 17 is the vertical view that the lens of expression present embodiment drive system, is to be used to illustrate the 1st by the shape of the 1st bearing portion of clamping part and the 2nd bearing portion, to reach the 2nd by the figure of the shape of the 3rd bearing portion of clamping part and the 4th bearing portion.

Figure 18 is the side view that the lens of expression present embodiment drive system, is to be used to illustrate the 1st by the shape of the 1st bearing portion of clamping part and the 2nd bearing portion, to reach the 2nd by the figure of the shape of the 3rd bearing portion of clamping part and the 4th bearing portion.

Figure 19 is the stereographic map that the lens of expression present embodiment drive system, is to be used to illustrate the 1st by the shape of the 1st bearing portion of clamping part and the 2nd bearing portion, to reach the 2nd by the figure of the shape of the 3rd bearing portion of clamping part and the 4th bearing portion.

Figure 20 be used to illustrate present embodiment the 1st by the shape of the 1st bearing portion of clamping part and the 2nd bearing portion, and the 2nd by the figure of the shape of the 3rd bearing portion of clamping part and the 4th bearing portion.

Figure 21 represents that from upper face side the cam gear of present embodiment is supported on partly cut-away's stereographic map of the state on the fixed frame by axle.

Figure 22 represents that from following side the cam gear of present embodiment is supported on partly cut-away's stereographic map of the state on the fixed frame by axle.

Figure 23 is the stereographic map of cross-section structure of the integral body of partly cut-away's cam gear of representing present embodiment.

Figure 24 is the sectional view of axle center part of the cam gear of present embodiment.

Figure 25 is the axle center part of cam gear of present embodiment and the sectional view of drive division.

Among the figure: the 1-electronic installation, 100-Zoom lens unit (zoom lens unit), 110-optical lens system, 111-objective lens (to the thing lens combination), 112-lens of variable focal length group (zoomlens group), 113-focus lens group (focus lens group), the 114-cam gear, the 20-image pickup part, the 130-image processing circuit, 131-AFE (analog front end) (AFE), 132-digital signal processor (DSP), 133-phase-locking loop (PLL), 134-timing generator (TG), 135-video driver (Vd), the 140-Drive and Control Circuit, 141-timer (TC), 142-oscillator (OSC), 143-storer (SRAM), 144-flash memories (FLASHMEM), 150-driving circuit (DRV), the 160-CD-ROM drive motor, the 161-rotor, 162, the 163-coil, 170-starting point detecting sensor, 200-portable phone portion, 201-host computer control circuit (baseband LSI), 202-radio section (RF), 203-efferent, the 204-input part, the 205-storer, 206-battery (BAT), 207-transforming circuit, the 208-power circuit, the 1141-leading axle, 1142-cam, 300-Zoom lens unit, the 311-fixed frame, the 312-optical system of making a video recording, 3121-the 3rd lens combination, 3122-the 1st lens combination, 3123-the 2nd lens combination, the 313-guide portion, 3131-the 1st leading axle, 3132-the 2nd leading axle, the 314-cam gear, the 3141-rotary body, 31411-turning axle, 31411a-leading section, the 31411b-rearward end, 3142-shoestring, the 1st of 3142a-, the 2nd of 3142b-, 31421-the 1st cam part, 31422-the 2nd cam part, 3143-leading section bearing portion, 3144-rearward end bearing portion, the 3145-disc spring, the 315-base station, 3151-imaging apparatus, 316-the 1st lens moving frame body, 3161-the 1st framework, 3162-the 2nd framework, 3163-the 1st is by clamping part, 3164-the 1st directed section, 31641-the 1st bearing portion, 31642-the 2nd bearing portion, 3165-the 3rd directed section, 317-the 2nd lens moving frame body, 3171-the 2nd is by clamping part, 3172-the 2nd directed section, 31721-the 3rd bearing portion, 31722-the 4th bearing portion, 3173-the 4th directed section, the 318-disc spring.

Embodiment

Below, in conjunction with the accompanying drawings embodiments of the present invention are described.

Fig. 1 is the functional block diagram of expression as an embodiment of the portable phone of electronic installation of the present invention.

The electronic installation 1 of present embodiment as shown in Figure 1, has as the Zoom lens unit 100 and the portable phone portion 200 that become times camera head.

The control signal CTL201 that Zoom lens unit 100 receives from portable phone portion 200, for example carry out optical change focus controlling or the automatically processing relevant of focus controlling etc. according to control signal CTL201, generate picture signal S130 that subject (not shown) is made a video recording and to 200 outputs of portable phone portion with the present invention.

Zoom lens unit 100 as shown in Figure 1, has optical lens and is 110, image pickup part 120, image processing circuit 130, Drive and Control Circuit 140, driving circuit (DRV) 150, CD-ROM drive motor 160 and a starting point detecting sensor 170.

Optical lens is 110 to be equivalent to optical system of the present invention (shooting optical system), image pickup part 120 is equivalent to image mechanism of the present invention, image processing circuit 130 is equivalent to image processing circuit of the present invention, Drive and Control Circuit 140 is equivalent to Drive and Control Circuit of the present invention, image processing circuit 130 and Drive and Control Circuit 140 are equivalent to camera control circuit of the present invention, and driving circuit 150 and CD-ROM drive motor 160 are equivalent to driving mechanism of the present invention.

Optical lens is 110 to make light from subject (not shown) via lens imaging on image pickup part 120.

Optical lens is 110 as shown in Figure 1, has objective lens 111, lens of variable focal length group 112, focus lens group 113 and cam gear 114.Lens of variable focal length group 112 is equivalent to the 1st lens combination of the present invention, and focus lens group 113 is equivalent to the 2nd lens combination of the present invention.In the present embodiment, for being made as 1 lens respectively with lens combination, simple declaration describes.

Objective lens 111, lens of variable focal length group 112 and focus lens group 113 begin to dispose successively from object side OBJS on optical axis.

Objective lens 111 for example is fixed in the Zoom lens unit basket portion (fixed frame).

Lens of variable focal length group 112 is a benchmark with the objective lens, realizes anamorphosis function by relatively moving along optical axis.

Focus lens group 113 by moving along optical axis, thereby makes photoimaging via objective lens 111 and lens of variable focal length group 112 on image pickup part 120.

Cam gear 114 for example drives by CD-ROM drive motor 160 described later, and at least one side in lens of variable focal length group 112 and the focus lens group 113 is moved along optical axis.

Cam gear 114 has leading axle 1141 and cam 1142.

Leading axle 1141 for example forms bar-shaped, make lens of variable focal length group 112 and focus lens group 113 along with the direction of optical axis almost parallel on guide.

Being formed with between leading axle 1141 and lens of variable focal length group 112 to keep making lens of variable focal length group 112 along the parallel mobile maintaining part of optical axis (lens moving frame body) 1121, in addition, between leading axle 1141 and focus lens group 113, be formed with and keep making focus lens group 113 along the parallel mobile maintaining part of optical axis (lens moving frame body) 1131.

Cam 1142 is to be the rotary body that the center rotates with the axle with leading axle 1141 almost parallels.

On the lateral surface of cam 1142, be formed with clamping part 1142, described clamping part 1142 buckles be connected on the lens of variable focal length group 112 by clamping part 1122 and be connected on the focus lens group 113 by clamping part 1132, and by cam 1142 rotation and at least one side in lens of variable focal length group 112 and the focus lens group 113 is moved along leading axle 1141.

Image pickup part 120 generates picture signal S120 based on the light R that via optical lens is 110, and exports picture signal S120 to image processing circuit 130.

More particularly, for example image pickup part 120 is made of charge coupled cell (CCD:Charge coupleddevice), is 110 and the light R that is imaged on the image pickup part 120 is transformed to electric signal with the reflected light of not shown subject via optical lens, thereby exports image processing circuit 130 to as picture signal S120.

Image pickup part 120 generates picture signal S120 based on the drive signal S135 from image processing circuit 130.

Image processing circuit 130 for example carries out data transmission via bus B S and Drive and Control Circuit 140 and host computer control circuit 201.

In the present embodiment, use 12C (the Inter Integrated Circuit) bus that constitutes by serial data sda line and serial clock scl line as bus B S1.

At host computer control circuit 201 is under master's the situation, with image processing circuit 130 and Drive and Control Circuit 140 is the auxilliary data transmission of carrying out, under situation, be the auxilliary data transmission of carrying out with host computer control circuit 201 and image processing circuit 130 based on Drive and Control Circuit 140.

In addition, image processing circuit 130 carries out data transmission synchronously with clock signal clk from host computer control circuit 201, carries out the homing action of parameter etc. when having received reset signal RST.

Image processing circuit 130 carries out Flame Image Process based on the picture signal S120 that image pickup part 120 generates, and exports result to host computer control circuit 201 and Drive and Control Circuit 140 as signal S130.

For example, the picture signal S120 that image processing circuit 130 generates based on image pickup part 120 gets data with the accumulated value of stipulated time of the brightness signal Y of the picture signal S120 in the accumulated value of stipulated time of presentation video signal, the automatic aggregation zone for example predesignated or color signal C and exports Drive and Control Circuit 140 to as signal S130.

In addition, image processing circuit 130 will make the timing signal T130 that carries out automatic focus controlling export Drive and Control Circuit 140 in predetermined timing.

Image processing circuit 130, details are for example shown in Figure 1, have AFE (analog front end) (AFE) 131, digital signal processor (DSP) 132, phase-locking loop (PLL) 133, timing generator (TG) 134 and video driver (VD) 135.

The signal S1341 of self-timing generator 134 is the basis since the AFE (analog front end) 131, will carry out the picture signal S131 that digital conversion generates numeral from the analog picture signal S120 of image pickup part 120, exports digital signal processor 132 to.

Digital signal processor 132 is for example based on the signal S133 from phase-locking loop 133, the signal S131 of self simulation front end 131 carries out Flame Image Process in the future, for example carry out Flame Image Process, export the result to host computer control circuit 201 or Drive and Control Circuit 140 via bus B S to brightness signal Y and color signal C.

In addition, digital signal processor 132 exports synchronizing signal S132 to timing generator 134.

Timing generator 134 will export order AFE (analog front end) 131 corresponding to the synchronizing signal S1341 of synchronizing signal S132 to, will export video driver 135 corresponding to the synchronizing signal S1342 of synchronizing signal S132 to.

Video driver 135 exports drive signal S135 to image pickup part 120 according to synchronizing signal S1342.

Drive and Control Circuit 140, according to carrying out the processing of present embodiment, specifically carry out automatic focus controlling processing, optical change focal length driving processing etc. from the control signal CTL201 of host computer control circuit 201 outputs and timing signal T130 and the picture signal S130 that exports from image processing circuit 130.

Drive and Control Circuit 140, according to the lens position of setting lens of variable focal length group 112 based on the control signal CTL201 of the appointment anamorphosis function of host computer control circuit 201, and generate and carry out the picture signal S130 of Flame Image Process based on image pickup part 120, export the drive signal DS140 that focus lens group 113 is driven to driving circuit 150 in the sweep limit corresponding to anamorphosis function through image processing circuit 130.

Drive and Control Circuit 140, when image processing circuit 130 has received timing signal T130, based on the picture signal S130 of image processing part 130 outputs, the drive signal DS140 that at least one side who makes in lens of variable focal length group 112 and the focus lens group 113 is driven exports driving circuit 150 to.

Drive and Control Circuit 140 as shown in Figure 1, has timer (TC) 141, oscillator (OSC) 142, storer (SRAM) 143, flash memories (FLASHMEM) 144 as inscape.

Timer 141 for example carries out timing with the oscillator signal based on oscillator 142.

Storer (SRAM) 143 for example uses as the operation area of Drive and Control Circuit 140.The semiconductor memory formation that storer 143 for example waits by SRAM (Static Random Access Memory).

Flash memories (FLASHMEM) 144 is for example stored and is realized functional programs PRG of the present invention, and Drive and Control Circuit 140 realizes function of the present invention by executive routine PRG.Program PRG for example can rewrite by the control of host computer control circuit 201.In the present embodiment, be not limited to realize the mode of function of the present invention by executive routine PRG.For example also can realize function of the present invention by link (the hard connection).

Driving circuit 150 in case received drive signal DS140 from Drive and Control Circuit 140, serves as signal CTL151, the CTL152 (being generically and collectively referred to as signal CTL150) that basis output drives CD-ROM drive motor 160 with drive signal S140 then.

The signal CTL150 that CD-ROM drive motor 160 receives from driving circuit 150 drives at least one side in lens of variable focal length group 112 and the focus lens group 113.

Specifically, CD-ROM drive motor 160 has rotor 161, coil 162,163.

Rotor 161 and cam 1142 interlocks are rotated in the forward and retrograde rotation by the magnetic force from coil 161,162, by making cam 1142 rotations, at least one side in lens of variable focal length group 112 and the focus lens group 113 are driven along optical axis.

Coil 161,162 generates magnetic field according to the signal CTL151,152 from driving circuit 150, by magnetic force rotor 161 rotations is driven.

Starting point detecting sensor 170 detects the lens position of lens of variable focal length group 112 or focus lens group 113, exports the signal S170 that represents testing result to Drive and Control Circuit 140.Drive and Control Circuit 140 makes lens of variable focal length group 112 or focus lens group 113 be urged to the lens position of regulation according to signal S170.

For example setting starting point detecting sensor 170 output detection signal S170 so that make lens of variable focal length group 112 or focus lens group 113 when being positioned at predefined lens position, Drive and Control Circuit 1405 is that benchmark makes lens move the drive signal CTL150 of predetermined distance by output with this lens position, can control the lens position of lens of variable focal length group 112 or focus lens group 113.

Portable phone portion 200 has baseband LSI (Large-scaleintegration) 201, radio section (RF) 202, efferent 203, input part 204, storer 205, battery (BAT) 206, transforming circuit 207 and the power circuit 208 as the host computer control circuit.

Host computer control circuit 201, radio section 202, efferent 203, input part 204 and storer 205 connect by bus B S2.

Host computer control circuit 201, the function of tonic chord of control electronic installation 1, the picture signal that produces according to driven Zoom lens unit by the drive signal of specifying anamorphosis function is carried out the control of predetermined function at least.

Radio section (RF) 202 is by the control of host computer control circuit 201, carries out radio communication with other communicator via antenna ANT.

Efferent 203, for example have by the control of host computer control circuit 201 carry out the display part of image demonstration etc., by the luminous illuminating part of reception information etc. or pronunciation portion of pronouncing etc. of reporting.

Input part 204 for example will be corresponding to the signal of user's operation, for example indicate the signal of anamorphosis function (image pickup mode) or indicate signal that automatic focus controlling begins and finish etc. to input to host computer control circuit 201.Host computer control circuit 201 carries out corresponding to these Signal Processing.For example keyboard or switch etc. can be set as input part 204.

Storer 205 for example uses as the operation area of carrying out processing of the present invention of host computer control circuit 201.In addition, storer 205 stored programme PRG or various parameters etc.Host computer control circuit 201 carries out the function control of electronic installation 1 by executive routine PRG.

Battery (BAT) 206 for example is a power supply of supplying with Zoom lens unit 100 and portable phone portion 200 electric power, for example can be made of secondary cell that can charge or standby one-shot battery etc.

Transforming circuit (DC/DC: DC voltage conversion circuit) 207, serve as that assigned voltage VDD is supplied with to Zoom lens unit 100 in the basis with electric power from battery 206.Transforming circuit 207 is supplied with assigned voltage VDD to image pickup part 120, image processing circuit 130 and Drive and Control Circuit 140 etc.In addition, transforming circuit 207 with corresponding to from the timing of the signal SV130 of image processing circuit 130 to Zoom lens unit 100 service voltage VDD.

Power circuit 208 serves as that assigned voltage MVDD is supplied with to driving circuit 150 in the basis with the electric power from battery 206.The voltage MVDD that power circuit 208 is supplied with in order to use when making driving circuit 150 drive CD-ROM drive motor 160, for example is set to such an extent that be higher than the voltage VDD that transforming circuit 207 is supplied with.

As anamorphosis function, have the pattern of dolly-out,ing dolly-back (tele mode), wide-angle pattern (wide mode), close-shot pattern (macro mode) or have close-shot wide-angle pattern of two kinds of patterns etc. concurrently in the present embodiment.In addition, preestablish corresponding to the lens position of the lens of variable focal length group 112 of each anamorphosis function, the lens position and the sweep limit of focus lens group 113.

For example, the close-shot pattern is corresponding to the 1st anamorphosis function of the present invention, and the wide-angle pattern is corresponding to the 2nd anamorphosis function, and the pattern of dolly-out,ing dolly-back is corresponding to the 3rd or the 4th anamorphosis function, and close-shot wide-angle pattern is corresponding to the 3rd anamorphosis function of the present invention.

Fig. 2 is the figure that is used to illustrate the optical lens system of electronic installation shown in Figure 1.

Fig. 2 (a) is the figure of the lens position when being used to illustrate the wide-angle pattern of lens of variable focal length group 112 and focus lens group 113.Fig. 2 (b) is the figure that is used to illustrate the relation of the lens position of lens of variable focal length group 112 and focus lens group 113 and cam 1142.The longitudinal axis is represented the anglec of rotation θ of cam 1142 in Fig. 2 (b), and transverse axis is represented the lens position x_LENS corresponding to the anglec of rotation θ of cam 1142.

Fig. 2 (c) is the figure of the lens position when being used to illustrate the pattern of dolly-out,ing dolly-back of lens of variable focal length group 112 and focus lens group 113.Fig. 2 (d) is the figure of the moving range of the lens of variable focal length group 112 shown in the presentation graphs 2 (b).Fig. 2 (e) is the enlarged drawing of the moving range of the focus lens group 113 shown in Fig. 2 (b).Fig. 2 (f) is the figure of analyzing spot that is used to illustrate the automatic focus controlling of Zoom lens unit shown in Figure 1.Fig. 2 (g) is used for the figure that the cam shown in the key diagram 2 (b) tilts.

In the present embodiment, Drive and Control Circuit 140, shown in Fig. 2 (b), by drive signal DS140 via driving circuit 150 CD-ROM drive motor 160 and set the anglec of rotation θ of cam 1142, set the lens position of lens of variable focal length group 112 thus according to curve ZL, set the lens position of focus lens group 113 according to curve FL.

For example in the pattern of dolly-out,ing dolly-back, lens of variable focal length group 112 is set at lens position ZT shown in Fig. 2 (c), (d), and focus lens group 113 is set in the scope FT shown in Fig. 2 (a), (e).It is that predetermined distance is for example between the lens position FT2 of 40cm that scope FT is set in the lens position FT1 of camera distance infinity and camera distance.

In the wide-angle pattern, lens of variable focal length group 112 is set at lens position ZW shown in Fig. 2 (a), (d), and focus lens group 113 is set in the scope FW shown in Fig. 2 (a), (e).It is that predetermined distance is for example between the lens position FW2 of 40cm that scope FW is set in lens position FW1 that camera distance is an infinity and camera distance.

In the close-shot pattern, lens of variable focal length group 112 is set at lens position ZW shown in Fig. 2 (a), (d), and focus lens group 113 is set in the scope FM shown in Fig. 2 (a), (e).Scope FM be set in camera distance be the 1st predetermined distance for example the lens position FM1 of 40cm and camera distance than the short distance of the 1st predetermined distance for example between the distance of 10cm.

Drive and Control Circuit 140, as above-mentioned, correspondence is based on the control signal CTL201 of the appointment anamorphosis function of host computer control circuit 201, set the lens position of lens of variable focal length group 112, generate and carry out the picture signal S130 of Flame Image Process according to image pickup part 120, export the drive signal DS140 that focus lens group 113 is driven to driving circuit 150 in the sweep limit corresponding to above-mentioned anamorphosis function through image processing circuit 130.

More particularly, Drive and Control Circuit 140 is when having received the control signal CTL201 of expression wide-angle pattern from host computer control circuit 201, lens of variable focal length group 112 is set on the lens position ZW, exports the drive signal DS140 that makes focus lens group 113 in scope FW interscan to driving circuit 150.

In addition, Drive and Control Circuit 140, when having received the control signal CTL201 of expression close-shot pattern from host computer control circuit 201, lens of variable focal length group 112 is set on the lens position ZW, will makes drive signal DS140 export driving circuit 150 in the scope FM interscan adjacent with scope FW.

In addition, Drive and Control Circuit 140, when having received expression from host computer control circuit 201 and dolly-out,ed dolly-back the control signal CTL201 of pattern, lens of variable focal length group 112 is set on the lens position ZT, will makes focus lens group 113 export driving circuit 150 at drive signal DS140 corresponding to the scope FT interscan different of the pattern of dolly-out,ing dolly-back with scope FW and scope FM.

In addition, Drive and Control Circuit 140, can set the sweep limit corresponding to the focus lens group 113 of each function of a plurality of anamorphosis functions, the drive signal DS140 that will make focus lens group 113 carry out independence or continuous sweep in one or more sweep limits according to zoom function exports driving circuit 150 to.

In the present embodiment, for example shown in Fig. 2 (e), will be corresponding to the scope FW of wide-angle pattern and the adjacent setting of scope FM corresponding to the close-shot pattern.

Drive and Control Circuit 140, when having received from host computer control circuit 201, will make the drive signal CTL140 of two scope interscans of focus lens group continuous span scope FW and scope FM export driving circuit 150 to corresponding to the scanning of the close-shot wide-angle pattern different indication with wide-angle pattern and close-shot pattern.

In addition, for example shown in Fig. 2 (e), original point HP is set between scope FT and the scope FW.Original point detecting sensor 170 when focus lens group 113 is positioned at original point HP, exports detection signal S170 to Drive and Control Circuit 140.

Drive and Control Circuit 140 in the sweep limit corresponding to anamorphosis function, is carried out automatic focus controlling with the analyzing spot corresponding to anamorphosis function.

More particularly, in the present embodiment, Drive and Control Circuit 140, for example shown in Fig. 2 (f), when dolly-out,ing dolly-back pattern, the interval with regulation in the scope FT of 80 μ m goes up at 8 points (point), during in the wide-angle pattern, in the scope FW of 60 μ m on 4 o'clock, the time in the close-shot pattern, in the scope FM of 195 μ m, on 13 o'clock, detect focusing position, carry out automatic focus controlling according to picture signal S130.In addition, in the present embodiment, for example the distance from position FT1 to position FM2 is 4.575mm.

In the present embodiment, for example, on cam 1142, form clamping part a1142, so that shown in Fig. 2 (g), make in scope FT inner focusing lens combination 113 and only move 1.25 μ m, only move 3.125 μ m according to each step of signal CTL150 at scope FW and scope FM inner focusing lens combination 113 according to each step of signal CTL150.

Fig. 3 is the figure of an object lesson of the instruction that sent to Zoom lens unit by portable phone portion shown in Figure 1 of expression, sign indicating number, command content.

For example sign indicating number 50h (h represent 16 systems represent) the expression driving indication of pattern of dolly-out,ing dolly-back.In case driving circuit 140 receiving code 50h then carry out the processing corresponding to the above-mentioned pattern of dolly-out,ing dolly-back.

Sign indicating number 51h～5Fh is the driving indication that expression has the pattern of dolly-out,ing dolly-back of subject primary position (lens settings position).In case Drive and Control Circuit 140 receiving code 51h～5Fh, then make lens of variable focal length group 112 be urged to lens position corresponding to the pattern of dolly-out,ing dolly-back, focus lens group 113 is driven, on the subject primary position corresponding to 4 positions of low level (back 4) when making focus lens group 113 stop at the sign indicating number that will receive to carry out binary representation to far-end.

Sign indicating number 60h represents the driving indication of wide-angle pattern.In case Drive and Control Circuit 140 receiving code 60h then carry out the processing corresponding to above-mentioned wide-angle pattern.

Sign indicating number 61h～6Fh is the driving indication that expression has the wide-angle pattern of subject primary position.In case Drive and Control Circuit 140 receiving code 61h～6Fh, then make lens of variable focal length group 112 be urged to lens position corresponding to the wide-angle pattern, focus lens group 113 is driven, on the subject primary position corresponding to 4 positions of low level when focus lens group 113 being stopped at sign indicating number carried out binary representation to wide-angle side.

Sign indicating number 70h represents the driving indication of close-shot pattern.In case Drive and Control Circuit 140 receiving code 70h then carry out the processing corresponding to above-mentioned close-shot pattern.

Sign indicating number 71h～7Fh is the driving indication that expression has the close-shot pattern of subject primary position.In case Drive and Control Circuit 140 receiving code 71h～7Fh, then make lens of variable focal length group 112 be urged to lens position corresponding to the close-shot pattern, focus lens group 113 is driven, on the subject primary position corresponding to 4 positions of low level when focus lens group 113 being stopped at sign indicating number carried out binary representation to the close-shot wide-angle side.

Sign indicating number 80h represents the driving indication of close-shot wide-angle pattern.In case Drive and Control Circuit 140 receiving code 80h then carry out the processing corresponding to above-mentioned close-shot wide-angle pattern.

Sign indicating number 81h～8Fh is the driving indication that expression has the close-shot wide-angle pattern of subject primary position.In case Drive and Control Circuit 140 receiving code 81h～8Fh, then make lens of variable focal length group 112 be urged to lens position corresponding to close-shot wide-angle pattern, focus lens group 113 is driven, on the subject primary position corresponding to 4 positions of low level when focus lens group 113 being stopped at sign indicating number carried out binary representation to the close-shot wide-angle side.

Sign indicating number A0h represents the indication that begins of independent focus controlling (independent auto focus control) automatically.In case Drive and Control Circuit 140 receiving code A0h then carry out once focus controlling automatically based on the picture signal S130 from image processing circuit 130.

Sign indicating number B0h represents the indication that begins of continuously automatic focus controlling (continuous autofocus control).In case Drive and Control Circuit 140 receiving code B0h then do not have the compartment of terrain to carry out automatic focus controlling repeatedly.

Sign indicating number B1h～BFh be expression have set interval time continuously automatically focus controlling begin indication.In case Drive and Control Circuit 140 receiving code B1h～BFh then are provided with setting value, for example 10mms (millisecond) and sign indicating number are carried out 2 systems, 4 positions of low level long-pending when representing, carry out automatic focus controlling repeatedly.

Specifically, for example control circuit 140 is set the interval time of 100ms * 5=500ms when having received sign indicating number B5h, carries out continuously focus controlling automatically.

Sign indicating number C0h represents the indication that stops of continuously automatic focus controlling.In case Drive and Control Circuit 140 receiving code C0h then stop continuously focus controlling automatically.

Sign indicating number D0h represents automatic focus controlling result's the indication of reading.In case Drive and Control Circuit 140 receiving code D0h, then for example as described later shown in, generate expression and export host computer control circuit 201 to corresponding to the signal S140 of the situation of the driving condition of driving circuit 150, CD-ROM drive motor 160, optical lens 110.

Status signals S140 for example, when representing with 2 systems, as high-order 4 positions, 0101 expression focusing, the non-focusing of 1111 expressions, in the automatic focus controlling of 0000 expression, the error of transmission of 1100 expression contact I2C.

In addition, status signals S140, when representing with 2 systems, as 4 positions of low level, 0000 represents the pattern of dolly-out,ing dolly-back, 0001 expression wide-angle pattern, 0010 expression close-shot pattern, 0011 expression close-shot wide-angle pattern, 1100 expression original point detection mistakes.

Fig. 4 is the figure that is used to illustrate the action of electronic installation shown in Figure 1.Is the center with reference to Fig. 4 with the action of image processing circuit 130, Zoom lens unit 100 and host computer control circuit 201, and independent focus controlling is automatically described.

Behind power connection, in step ST1, the control signal CTL200 that host computer control circuit 201 will make data carry out the initial stage processing exports image processing circuit 130 to.Image processing circuit 130 after receiving control signal CTL200, carries out the initial stage processing of internal state.

Simultaneously, host computer control circuit 201 will make the control signal CTL200 of the initial stage processing of carrying out the lens driving export Drive and Control Circuit 140 to.In a single day Drive and Control Circuit 140 receives control signal CTL201, then carries out the initial stage processing that lens drive.

At this moment, Drive and Control Circuit 140 in the initial stage processing that lens drive, is ignored the control signal CTL201 of expression from the new processing of host computer control circuit 201.

In step ST2, host computer control circuit 201 will export Drive and Control Circuit 140 to the control signal CTL201 that situation is carried out requirement.Drive and Control Circuit 140 receives control signal CTL201, exports the status signals S140 relevant with the initial stage processing to host computer control circuit 201 (ST3).

Host computer control circuit 201 is according to the end of status signals S140 affirmation initial stage processing or mistake etc., the fault processing of stipulating when mistake.

In step ST4, host computer control circuit 201 will specify the control signal CTL201 of anamorphosis function (camera function) to export Drive and Control Circuit 140 to.

In step ST5, Drive and Control Circuit 140, when having received control signal CTL201, will make lens of variable focal length group 112 be set in lens position, the lens position of focus lens group 113 is set in corresponding to the drive signal DS140 in the scope of anamorphosis function export driving circuit 150 to corresponding to anamorphosis function.Driving circuit 150, when having received drive control signal DS140, output signal CTL151, CTL152 drive CD-ROM drive motor 160.CD-ROM drive motor 160 can be set in lens of variable focal length group 112 lens position corresponding to anamorphosis function by making cam 1142 rotation, and the lens position of focus lens group 113 is set in the scope corresponding to anamorphosis function.

In lens drove, Drive and Control Circuit 140 was ignored the control signal CTL201 of expression from the new content of host computer control circuit 201.

In step ST6, host computer control circuit 201, the independent control signal CTL201 that begins to indicate of focus controlling automatically exports Drive and Control Circuit 140 to expression.

In step ST7, Drive and Control Circuit 140, when having received its control signal CTL201, for example will make focus lens group 113 be set in the drive signal DS140 that scanning corresponding to anamorphosis function begins lens position and export driving circuit 150 to, carry out data transmission with image processing circuit 130.

Driving circuit 150 drives CD-ROM drive motor 160 and cam 1142 according to drive signal DS140, and the scanning that focus lens group 113 is set in corresponding to anamorphosis function begins on the lens position.

For example, begin lens position, be set at most proximal end corresponding to the scope of anamorphosis function as the scanning of focus lens group 113.Specifically, when dolly-out,ing dolly-back pattern, focus lens group 113 is set in lens position FT2, when the wide-angle pattern, is set in lens position FW2, when the close-shot pattern, be set in lens position FM2.

In step ST8, image processing circuit 130 output timing signal T130.

In step ST9, Drive and Control Circuit 140 is when having received timing signal T130, till next analyzing spot, the drive signal DS140 that output drives focus lens group 113 drives lens by driving circuit 150, CD-ROM drive motor 160 and cam 1142.

In step ST10, Drive and Control Circuit 140 when lens sweep described point downwards and drive to finish, exports the signal CTL140 of the requirement of presentation video signal S130 to image processing circuit 130.

In step ST11, image processing circuit 130, when having received its signal CTL140, S130 exports Drive and Control Circuit 140 to this analyzing spot epigraph signal.

At this moment, image processing circuit 130, the also picture signal S120 that can generate according to image pickup part 120 as picture signal S130 (automatic focus data), exports the accumulated value of stipulated time of the brightness signal Y of the picture signal in the automatic focus district or color signal C to Drive and Control Circuit 140.

In step ST12, host computer control circuit 201, the signal CTL201 that the expression situation is required exports Drive and Control Circuit 140 to.

In step ST13, Drive and Control Circuit 140, when having received signal CTL201, generate expression driving circuit 150, CD-ROM drive motor 160 and optical lens and be the status signals S140 of 110 driving condition, and export the status signals S140 that generates to host computer control circuit 201.Host computer control circuit 201 is held the driving condition of Zoom lens unit 100 based on status signals S140, and carries out the function control based on the regulation of picture signal.

In step ST14, Drive and Control Circuit 140, image processing circuit 130 and host computer control circuit 201 for example in the sweep limit corresponding to anamorphosis function, till the analyzing spot before the analyzing spot to the last, carry out the processing of step ST8～ST13 repeatedly.

In step ST15, Drive and Control Circuit 140 is when focus lens group 113 is positioned at last analyzing spot in the sweep limit corresponding to anamorphosis function, in following one scan timing, do not carry out lens and drive, only carry out reading of picture signal S130 (automatic focus data).This is because the automatic focus result only exports with a frame timing delay.

In step ST16, Drive and Control Circuit 140, on corresponding to the whole analyzing spots in the sweep limit of anamorphosis function, under the situation according to picture signal S130 (automatic focus data) detected peaks, the drive signal DS140 that focus lens group 113 will be urged on the peak position (focusing position) exports driving circuit 150 to.150 pairs of CD-ROM drive motor 160 of driving circuit and cam 1142 drive, and focus lens group 113 is set on the focusing position.

In addition, Drive and Control Circuit 140 behind the lens mobile end, is set at focusing or non-focusing with situation.

In step ST17, host computer control circuit 201 exports the signal CTL201 that represents the requirement of situation to Drive and Control Circuit 140.Drive and Control Circuit 140 will represent that the status signals S140 of the situation of setting exports host computer control circuit 201 (step ST18) to.

Host computer control circuit 201 under the situation that has received this status signals S140, is confirmed the independent end of focus controlling automatically.

Prepare to finish by above-mentioned processing shooting,, carry out based on function control from the regulation of the picture signal S130 of image processing circuit 130 by host computer control circuit 201.

In addition, during the processing of step ST6～ST18, Drive and Control Circuit 140 is ignored the new control signal that require content of expression from host computer control circuit 201.

In addition, Drive and Control Circuit 140, when power supply disconnected, the drive signal DS140 on the lens position when making lens of variable focal length group 112 and focus lens group 113 stop at power supply to disconnect exported driving circuit 150 to, directly finished camera mode under the state that stops at this lens position making.

Fig. 5 is used in the continuous figure of the action of focus controlling automatically of explanation electronic installation shown in Figure 1.With reference to Fig. 5 only to the setting of the electronic installation 1 of present embodiment interval time continuously automatically the action of focus controlling describe with the independent difference of focus controlling automatically.For same action, give same-sign, omit explanation.

Difference between step ST106 and the step ST6 is that in step ST106, host computer control circuit 201 will represent that the control signal CTL201 that begins to indicate of interval time (setting-up time) and continuously automatic focus controlling exports Drive and Control Circuit 140 to.

Drive and Control Circuit 140, when having received this drive signal CTL201, for example setting-up time is set among the storer SRAM143 at interval.

In step ST18, host computer control circuit 201 when having received status signals S140, through (ST19) after being set in the interval setting-up time among the SRAM143, carries out the action (ST20) of step ST7～ST18 only once more repeatedly.

In step ST21, Drive and Control Circuit 140, received from host computer control circuit 201 expression continuously automatically focus controlling stop the control signal CTL201 of requirement the time, stop automatic focus controlling.

Fig. 6 is the process flow diagram that is used to illustrate the action of electronic installation shown in Figure 1.With reference to Fig. 2, Fig. 6 is that the center describes with the action of each anamorphosis function of the Drive and Control Circuit 140 of electronic installation 1.

To will specify the control signal CTL201 of anamorphosis function to export Drive and Control Circuit 140 to from the host computer control circuit.

Drive and Control Circuit 140 when host computer control circuit 201 has received control signal CTL201, according to control signal CTL201, carries out handling corresponding to the driving of each anamorphosis function.

In step ST1001, for example Drive and Control Circuit 140, when having received indication and dolly-out,ed dolly-back the control signal CTL201 of pattern, as shown in Figure 2, export driving circuit 150 to making lens of variable focal length group 112 be set in the lens position ZT corresponding to the pattern of dolly-out,ing dolly-back, the drive signal DS140 that focus lens group 113 is driven in the scope corresponding to the pattern of dolly-out,ing dolly-back.

Driving circuit 150, in case receive drive signal DS140, CD-ROM drive motor 160 and cam 1142 driven, make lens of variable focal length group 112 be set in lens position ZT, make focus lens group 113 in corresponding to the scope FT of the pattern of dolly-out,ing dolly-back, drive (ST1002) corresponding to the pattern of dolly-out,ing dolly-back.

Drive and Control Circuit 140, when having received the control signal CTL201 that begins to indicate that represents automatic focus controlling from host computer control circuit 201, output makes automatic focus controlling at the signal DS140 that sweep limit FT interscan drives, and driving circuit 150, CD-ROM drive motor 160, cam 1142 are driven.Be back to the processing of step ST1001.

In step ST1003, for example Drive and Control Circuit 140, when having received the control signal CTL201 of indication wide-angle pattern, as shown in Figure 2, export driving circuit 150 to making lens of variable focal length group 112 be set in the lens position ZW corresponding to the wide-angle pattern, the drive signal DS140 that focus lens group 113 is driven in the scope FW corresponding to the wide-angle pattern.

Driving circuit 150, in case receive drive signal DS140, CD-ROM drive motor 160 and cam 1142 driven, make lens of variable focal length group 112 be set in lens position ZW, make focus lens group 113 in corresponding to the scope FW of wide-angle pattern, drive (ST1004) corresponding to the wide-angle pattern.

Drive and Control Circuit 140, when having received the control signal CTL201 that begins to indicate that represents automatic focus controlling from host computer control circuit 201, output makes automatic focus controlling at the signal DS140 that sweep limit FW interscan drives, and driving circuit 150, CD-ROM drive motor 160, cam 1142 are driven.Be back to the processing of step ST1001.

In step ST1005, for example Drive and Control Circuit 140, when having received the control signal CTL201 of indication close-shot pattern, as shown in Figure 2, export driving circuit 150 to making lens of variable focal length group 112 be set in the lens position ZW corresponding to the close-shot pattern, the drive signal DS140 that focus lens group 113 is driven in the scope FM corresponding to the close-shot pattern.

Driving circuit 150, in case receive drive signal DS140, CD-ROM drive motor 160 and cam 1142 driven, make lens of variable focal length group 112 be set in lens position ZW, make focus lens group 113 in corresponding to the scope FM of close-shot pattern, drive (ST1006) corresponding to the wide-angle pattern.

Drive and Control Circuit 140, when having received the control signal CTL201 that begins to indicate that represents automatic focus controlling from host computer control circuit 201, output makes automatic focus controlling at the signal DS140 that sweep limit FW interscan drives, and driving circuit 150, CD-ROM drive motor 160, cam 1142 are driven.Be back to the processing of step ST1001.

In step ST1005, for example Drive and Control Circuit 140, when having received the control signal CTL201 of indication close-shot wide-angle pattern, as shown in Figure 2, will make lens of variable focal length group 112 be set in lens position ZW, make the drive signal DS140 of focus lens group 113 continuous drive in export driving circuit 150 to corresponding to two scopes of the scope FM of close-shot wide-angle pattern and scope FW corresponding to close-shot wide-angle pattern.

Driving circuit 150, in case receive drive signal DS140, CD-ROM drive motor 160 and cam 11421 are driven, make lens of variable focal length group 112 be set in lens position ZW corresponding to the close-shot pattern, make focus lens group 113 corresponding to two scopes of the scope FM of close-shot wide-angle pattern and scope FW continuously in driving (ST1006).

Drive and Control Circuit 140, when having received the control signal CTL201 that begins to indicate that represents automatic focus controlling from host computer control circuit 201, output makes the signal DS140 of automatic focus controlling in the two scope interscans driving of sweep limit FW and scope FM, and driving circuit 150, CD-ROM drive motor 160, cam 1142 are driven.Be back to the processing of step ST1001.

Fig. 7 is the process flow diagram that is used to illustrate the action of electronic installation shown in Figure 1.With reference to Fig. 2, Fig. 7 so that the action the during pattern of the lens settings of electronic installation is that the center describes.

In step ST2001, when having received the control signal CTL201 that begins to indicate that represents automatic focus controlling,, carry out above-mentioned automatic focus controlling (ST2002) according to control signal CTL201 from host computer control circuit 201, return step ST2001.

On the other hand, when host computer control circuit 201 has received the control signal CTL201 that the lens position that makes focus lens group 113 sets (ST2003), according to this control signal CTL201, will make focus lens group 113 export driving circuit 150 to the drive signal DS140 that the lens position of setting drives.

Driving circuit 150 drives CD-ROM drive motor 160 and cam 1142 according to drive signal S150, makes focus lens group 113 be urged to the lens position of setting.Return step ST2001.

As described above, in the present embodiment, host computer control circuit 201 is set in portable phone portion 200, the function of tonic chord of described host computer control circuit 201 control device, according to the function control that the picture signal S130 of driven Zoom lens unit 100 stipulates by the control signal of specifying anamorphosis function at least, in Zoom lens unit 100, be provided with: the optical lens that disposes objective lens 111, lens of variable focal length group 112 and focus lens group 113 on optical axis successively is 110; The driving circuit 150 and the CD-ROM drive motor 160 that at least one side in lens of variable focal length group 112 and the focus lens group 113 are driven according to drive signal S150 along optical axis; Based on the image pickup part 120 that via optical lens is 110 photogenerated picture signal; And Drive and Control Circuit 140.Described Drive and Control Circuit, set the lens position of lens of variable focal length group 112 according to the control signal CTL201 of the appointment anamorphosis function of host computer control circuit, and can set corresponding to each the sweep limit of focus lens group 113 of a plurality of anamorphosis functions, picture signal based on image pickup part 120 generations, to make focus lens group 113 export driving circuit 150 and CD-ROM drive motor 160 at the drive signal DS140 of one or more sweep limit independences or continuous sweep according to anamorphosis function, therefore can two anamorphosis functions or correspond respectively to the wide-angle pattern and the sweep limit of close-shot pattern in carry out turntable driving continuously.

Therefore, the user does not need to change continually complicated operations such as anamorphosis function, just can photograph.In addition, because the change of anamorphosis function has tailed off, the processing burden of therefore automatic focus controlling etc. has also alleviated.

In addition, make corresponding to the scope FM of close-shot pattern and the adjacent setting of scope FW corresponding to the wide-angle pattern, Drive and Control Circuit 140, when having received corresponding to the scanning of the close-shot wide-angle pattern different with wide-angle pattern indication with the close-shot pattern, to make the drive signal DS140 of focus lens group 113 continuous sweep in two scopes of scope FM and scope FW export driving circuit 150 to, by CD-ROM drive motor 160, focus lens group 113 continuous sweep in above-mentioned two scopes is driven, therefore for example can not produce the time that causes based on the anamorphosis function change intermittently and continuously to drive in two scope interscans.

In addition, Drive and Control Circuit 140, when having received the control signal CTL201 of the lens position setting that makes focus lens group 113 from host computer control circuit 201, export the drive signal DS140 that focus lens group 113 is driven to driving circuit 150 on the lens position of setting, driving circuit 150 makes CD-ROM drive motor 160 focus lens group 113 is urged to the lens position of setting, thus, for example do not changing to camera distance between the subject and during sequence photography, owing to do not carry out automatic focus controlling, therefore can shorten to the photography time regularly next time.

In addition, Drive and Control Circuit 140, when having received the control signal CTL201 of expression setting-up time (interval time) and continuously automatic focus controlling from host computer control circuit 201, according to image pickup part 120 shootings and picture signal S130 carry out Flame Image Process through image processing circuit 130, make focus lens group 113 scannings and make and stop on the focusing position, exporting driving circuit 150 to through the drive signal DS140 that will make focus lens group 113 scannings behind the setting-up time once more and stop on the focusing position, in driving circuit 150, according to drive signal DS150 CD-ROM drive motor 160 is driven, even when often carrying out auto focus control, also can suppress to consume electric power interval time by setting.

In addition, Drive and Control Circuit 140, in the process that at least one side in 160 pairs of lens of variable focal length groups 112 of CD-ROM drive motor and focus lens group 113 drives, when host computer control circuit 201 has received control signal CTL201, ignore this drive signal CTL201, for example make the drive signal DS140 of at least one side in CD-ROM drive motor 160 continuous drive lens of variable focal length groups 112 and the condenser lens 113 via driving circuit 150 outputs, after driving end, carry out corresponding to processing, can not interrupt lens thus and drive and prevent to delay work from host computer control circuit 201 control signal CTL201.

In addition, Drive and Control Circuit 140, because when cutting off the electricity supply, drive signal DS140 on the lens position when driving circuit output makes lens of variable focal length group 112 and focus lens group 113 stop at dump, therefore for example compare, can shorten the processing time when finishing with making the situation that is urged to predefined initial stage lens position and stops.In addition, this lens position is being stored in the storer, carry out next time lens of variable focal length group 112 and during the driving of focus lens group 113, by being that benchmark carries out the initial stage processing with this lens position, time that can the processing of shortening initial stage.

In addition, owing to set image processing circuit 130 and Drive and Control Circuit 140, wherein said image processing circuit 130, the picture signal S120 that generates based on image pickup part 120 carries out Flame Image Process, the picture signal S130 of output result, and export the timing signal T130 that automatic focus controlling is carried out; Described Drive and Control Circuit 140, when image processing circuit 130 has received timing signal T130, picture signal S130 according to image processing circuit 130 outputs, export the drive signal DS140 that at least one side in lens of variable focal length group 112 and the focus lens group 113 is driven to driving circuit, therefore can be that 110 driving is handled by separately Flame Image Process and optical lens, and alleviate the processing burden of circuit separately.

In addition, Drive and Control Circuit 140, when the control signal CTL140 of the requirement that has received the expression status signals from host computer control circuit 201, according to image pickup part 120 generate and picture signal S130 carry out Flame Image Process through image processing circuit 130, generate expression CD-ROM drive motor 160, optical lens is the status signals of 110 driving condition, export the status signals S140 that generates to host computer control circuit 201, host computer control circuit 201, hold the driving condition of Zoom lens unit 100 according to status signals S140, control according to the function that picture signal S130 stipulates, therefore, host computer control circuit 201 can be held the driving condition of Zoom lens unit 100 inside with required timing.

In addition, owing to be provided with Drive and Control Circuit 140 in Zoom lens unit 100 inside, therefore can alleviate the processing burden of host computer control circuit 201, described Drive and Control Circuit 140 is carried out the driving of optical change focal length and is carried out automatic focus controlling based on picture signal according to the control signal CTL201 based on simple instruction from host computer control circuit 201.

In addition, the present invention is not limited to present embodiment, can carry out various suitable changes.

For example optical lens is 110 to be not limited to aforesaid way.

In addition, sweep limit or turntable driving corresponding to each anamorphosis function also are not limited to aforesaid way.

In addition, in the present embodiment,, at least one side in lens of variable focal length group 112 and the focus lens group 113 is driven, but also be not limited to this mode by cam 1142.As long as have the mechanism that can drive at least one side in lens of variable focal length group 112 and the focus lens group 113.

Concrete configuration example to the portion of mechanism except that control system of the Zoom lens unit of above-mentioned electronic installation 1 describes below.

Herein, for becoming times imaging lens system as having carried, can realize miniaturization, and mobile lens swimmingly can realize that the concrete configuration example of Zoom lens unit of the change times camera head of stable position adjustment is described in detail with reference to Fig. 8～Figure 22, described change times imaging lens system, be negative, positive, negative lens type though have, can suppress angle of emergence and can realize the extremely compact such feature of optical system, wherein also some repetition of explanation.

Fig. 8 is the stereoscopic figure from positive unilateral observation as the Zoom lens unit of change of the present invention times camera head, Fig. 9 is the local abridged stereoscopic figure as the unilateral observation from behind of the Zoom lens unit of change of the present invention times camera head, Figure 10 is the front view as the Zoom lens unit of change of the present invention times camera head, and Figure 11 is the vertical view as the Zoom lens unit of change of the present invention times camera head.

This Zoom lens unit 300, as shown in the figure, has fixed frame 311, shooting optical system 312, guide portion 313, cam gear 314 and base station 315, fixed frame 311 is accommodated lens, leading axle, main composition portions such as cam gear, shooting optical system 312 has the 3rd lens combination 3121, the 1st lens combination 3122 and the 2nd lens combination 3123 these 3 groups formations, on fixed frame 311, fix the 3rd lens combination 3121, in fixed frame 311, dispose the 1st movably along optical axis, the 2nd lens combination 3122,3123, guide portion 313 has the 1st lens combination 3122 of guiding shooting optical system 312 on the direction parallel with optical axis and the 1st leading axle 3131 and the 2nd leading axle 3132 of the 2nd lens combination 3123, cam gear 314 relatively shooting optical system 312 and row arrangement in fixed frame 311, base station 315 disposes the imaging apparatus 3151 that is made of CCD or cmos sensor in the mode that comprises as the optical axis of the part of shooting optical system 312.

On Zoom lens unit 300, shooting optical system 312 is equivalent to the shooting optical system 100 of Fig. 1, the 3rd lens combination 3121 is equivalent to the focus lens group 113 of lens of variable focal length group 112, the 2 lens combination 3123 suitable Fig. 1 of objective lens 111, the 1 lens combination 3122 suitable Fig. 1 of Fig. 1.In addition, constitute the drive unit that becomes times camera head by guide portion 313, cam gear 314, motor (not shown) etc.

In addition, in Fig. 8 and Fig. 9, the optical axis of shooting optical system 312 constitutes in the mode of the Z-direction that becomes the orthogonal coordinate system of setting among Fig. 8, as described later in detail, the rotation of the 1st lens combination 3122 and the 2nd lens combination 3123 corresponding cam gears 314 and on optical axis direction, move (advance and retreat).

Fixed frame 311, for example, in Fig. 8 and Fig. 9, front face side, back side and following side opening, the following side of left and right sides portion is installed on the base station 315.And, the 1st leading axle 3131 of guide portion 313 and an end of the 2nd leading axle 3132 by axle be supported on roughly 180 ° relatively to the position.

The left side has the function as the 3rd lens combination fixed frame 3111 among Fig. 8 of the last facial 311a of fixed frame 311, Figure 10, is formed with on it for the 3rd lens combination 3121 of fixing shooting optical system 12 at the rounded peristome 3111a in the coconnected cross section of optical axis direction.

In addition, be formed with cam drive division resettlement section 3112 abreast with the 3rd lens combination fixed frame 3111, the bearing portion of the turning axle of the rotary body of configuration the cam gear 314 and rotary driving force of motor (not shown) is passed to the gear row etc. of the gear of rotary body with the reduction gear ratio of regulation on this cam drive division resettlement section 3112.

Figure 12 is the sectional view of the A-A line direction of arrow of Figure 11, and Figure 13 is the sectional view of the B-B line direction of arrow of Figure 11.

Below, except above-mentioned Fig. 8～Figure 11, also the concrete configuration example of the shooting optical system 312 of present embodiment is described with reference to Figure 12 and Figure 13.

The shooting optical system 312 of present embodiment, as Figure 12 and shown in Figure 13, by the 3rd lens combination 3121 that disposes successively from object side OBJS, the 1st lens combination 3122, the 2nd lens combination 3123, be located at the image pickup part 3124 of base station side, and the aperture portion 3125 that is configured in the object side (the 3rd lens combination 3,121 one sides) of the 1st lens combination 3122 constitutes, wherein, the 3rd lens combination 3121 constitutes by 1 with negative refractive power, the 1st lens combination 3122 constitutes by having 3 of just reaching negative refracting power, have positive refracting power as a whole, the 2nd lens combination 3123 constitutes by 1 with negative refractive power.

When this shooting optical system 312 becomes times, the 3rd lens combination the 3121, the 1st lens combination 3122, and the 2nd lens combination 3123 in, for example the 1st lens combination 3122 is mobile on optical axis with the rotation of the 2nd lens combination 3123 corresponding cam gears 314.

Like this, in the present embodiment, shooting optical system 312 is made of 5 lens altogether, wherein dispose successively from object side OBJS, the 3rd lens combination 3121 is that 1 formation, the 1st lens combination 3122 are that 3 formations, the 2nd lens combination 3123 are 1 formation.

The 3rd lens combination 3121 by for example on the 1st object side be that the meniscus lens 31211 of the negative refracting power of having of convex surface constitutes.

Like this, by constituting the 3rd lens combination 3121, can suppress distortion easily by meniscus lens 31211 with negative refracting power.

The 1st lens combination 3122 is because for unique group with positive refracting power, so adopt 3 formations in order to carry out each optical aberration correcting.And, when the 1st lens combination 3122 is used glass lens, so because little than common lens high price.Therefore, in the present embodiment, reduce, and be used as constituting 3 lens of the 1st lens combination 3122 by plastics system lens in order to realize cost.

Constitute 3 plastics system lens of the 1st lens combination 3122, for example, constitute by positive meniscus lens 31221, diverging meniscus lens 31222 and positive biconvex lens 31223 successively from the 3rd lens combination 3121 sides (object side).

Positive meniscus lens 31221 can carry out the spherical aberration revisal well, be made as diverging meniscus lens 31222 by the lens that will be positioned at 3 central authorities, can be suppressed at the excessive and inhibition frame aberration generation of revisal of the face that the resembles bending of positive lens generation, thereby reach balancing performance, suppress to change by these, can high-performance become doubly along with becoming the aberration that doubly produces.

The 2nd lens combination 3123 owing to be 1 formation, so need to carry out the revisal of each aberration here, as is carried out spherical aberration, frame aberration, astigmatism, distortion revisal, and also needs to carry out the revisal of the angle of emergence of wide-angle side.

The 2nd lens combination 3123 is that recessed negative lens 31231 constitutes by for example image planes side.

In the present embodiment, focal length adjustment (focus on adjust) is undertaken by the 2nd lens combination 3123, from infinitely as far as recently to shooting face side shifting.

The 2nd lens combination 3123 is when being positive lens, owing to moving to object side, so especially need to guarantee the 1st lens combination 3122 of telescope end and the distance between the 2nd lens combination 3123.

In the present embodiment, because to the image planes side shifting, so can subtract the 1st lens combination 3122 of narrow telescope end and the distance of the 2nd lens combination 3123.

This is to make one of essential factor that becomes times optical system densification, in addition, so long as identical size just can dispose rational magnification, can realize high propertyization and reduce eccentric sensitivity.

The image pickup part 3124 that is located at base station 315 1 sides disposes the planopaallel plate (cover glass) 3152 of glass, the imaging apparatus 3151 that for example is made of CCD or cmos sensor etc. successively from the 2nd lens combination 3,123 one sides.

Jie is imaged on the shooting face 3151a of imaging apparatus 3151 by the light of shooting optical system 312 from subject (object).

Have above the 3rd lens combination the 3121, the 1st lens combination 3122 and the shooting optical system of the 2nd lens combination 3123, constitute because its optical system integral body is negative, positive, negative lens, so can shorten length overall in order to have focussing force.

Shooting optical system 312 with present embodiment of above formation realizes densification, to carry on portable phone etc.

And, as mentioned above, the 3rd lens combination 3121 of shooting optical system 312 is fixed on the 1st lens fixed frame 3111, and, the 1st lens combination 3122 is fixed in the 1st lens moving frame body 316, and the 2nd lens combination 3123 is accommodated to be fixed in the 2nd lens moving frame body 317.

The 1st lens moving frame body 316 and the 2nd lens moving frame body 317 are guided by the 1st leading axle 3131 and the 2nd leading axle 3132 and constitute along optical axis direction.

Secondly, configuration and the matching relationship to the formation of the 1st lens moving frame body 316 and the 2nd lens moving frame body 317 and the 1st leading axle 3131 and the 2nd leading axle 3132, cam gear 314 describes.

Figure 14 is the 1st lens moving frame body 316 and the 2nd a lens moving frame body 317 of representing present embodiment from a positive side, and the 1st leading axle 3131 and the 2nd leading axle 3132, the configuration of cam gear 314 and the stereographic map of matching relationship, Figure 15 is that a side is represented the 1st lens moving frame body 316 and the 2nd lens moving frame body 317 from behind, and the 1st leading axle 3131 and the 2nd leading axle 3132, the configuration of cam gear 314 and the stereographic map of matching relationship, Figure 16 are to represent the 1st lens moving frame body 316 and the 2nd lens moving frame body 317 from a top side, and the 1st leading axle 3131 and the 2nd leading axle 3132, the configuration of cam gear 314 and the stereographic map of matching relationship.

In addition, in the present embodiment, the 1st leading axle 3131 to be being supported on by axle on the fixed frame 311 near the mode that is positioned at a positive side cam gear 314 a little, the 2nd leading axle 3132 with the 1st leading axle 3131 folders every the 1st and the 2nd lens framework 316,317 ground with roughly 180 ° relative to and the mode that is positioned at a next side a little be supported on the fixed frame 311 by axle.

The 1st lens moving frame body 316, for the relation of accommodating fixing the 1st lens combination 3122 that constitutes by 3 lens, and be formed by the 1st frameworks 3161 integrally formed, the 3rd lens combination 3121 sides such as plastics and the 2nd lens combination 3123 sides the 2nd framework 3162 these 2 sections constitute.

The 1st lens moving frame body 316 is extending with the direction of optical axis approximate vertical from the sidepiece of the back side of the 1st framework 3161, be formed with the 1st cam part 31421 of cam gear 314 mutually buckle be the tabular the 1st by clamping part 3163.

The 1st lens moving frame body 316 is formed with by the front face side of clamping part 3163 the 1st and connect inserts that the 1st leading axle 3131 carries out axle rotation that support, corresponding cam gear 314 and by the 1st directed section 3164 of the 1st leading axle 3131 guiding.

And, the 1st lens moving frame body 316, the assigned position of the 2nd framework 3162 be formed with insert outside the 2nd leading axle 3132 from the sidepiece of axle and with the rotation that cooperate, corresponding cam gear 314 of embedding form by the 3rd directed section 3165 of the 2nd leading axle 3132 guiding, wherein the assigned position of the 2nd framework 3162 is specially and the 1st position of being shown 180 ° of subtends greatly by the formation position of clamping part 3163.

The 2nd lens moving frame body 317 for the relation of accommodating fixing the 1st lens combination 3123 that is made of 1 lens, forms and constitute with 1 section by plastics etc.

The 2nd lens moving frame body 317, from behind the sidepiece of side with the direction of optical axis approximate vertical on extend, be formed with the 2nd cam part 31422 of cam gear 314 mutually buckle be the tabular the 2nd by clamping part 3171.

The 2nd lens moving frame body 317 is formed with by the front face side of clamping part 3171 the 2nd and connect inserts that the 1st leading axle 3131 carries out axle rotation that support, corresponding cam gear 314 and by the 2nd directed section 3172 of the 1st leading axle 3131 guiding.

And, the 2nd lens moving frame body 317, with the 1st position of being shown 180 ° of subtends greatly by the formation position of clamping part 3171 be formed with insert outside the 2nd leading axle 3132 from the sidepiece of axle and with the rotation that cooperate, corresponding cam gear 314 of embedding form by the 4th directed section 3173 of the 2nd leading axle 3132 guiding.

And, in the present embodiment, the 1st lens moving frame body 316 and the 2nd lens moving frame body 317, face side with the 1st by clamping part 3163 and the 2nd by the formation position of clamping part 3171 roughly relative to the position, to be erected between the 1st lens moving frame body 316 and the 2nd lens moving frame body 317 as elastomeric disc spring 318, rely on a side so that the 1st lens moving frame body 316 and the 2nd lens moving frame body 317 are stablized.

In addition, in the present embodiment, at optical axis direction by the 1st directed section 3164 of the 1st lens moving frame body 316 of the 1st leading axle 3131 guiding and the 2nd directed section 3172 of the 2nd lens moving frame body 317, the strong point of a plurality of the 1st leading axles 3131 is set respectively and is stabilized guiding, form a plurality of bearing portion with predetermined distance again, to suppress the generation of inclination off-centre etc. as far as possible.

Particularly, as shown in figure 14, the 1st directed section 3164 of the 1st lens moving frame body 316 has the 1st bearing portion 31641 and the 2nd bearing portion 31642 that form with predetermined distance on optical axis direction.

Equally, the 2nd directed section 3172 of the 2nd lens moving frame body 317 has the 3rd bearing portion 31721 and the 3rd bearing portion 31722 that form with predetermined distance on optical axis direction.

And, the 1st the 31642, the 3rd bearing portion 31721 of the 31641, the 2nd bearing portion of bearing portion and the 4th bearing portion 31722, with respect to the spaced apart predetermined distance of the 1st leading axle 3131 difference, and, the 1st leading axle 3131 is inserted in the 1st the 31721, the 2nd bearing portion 31642 of the 31641, the 3rd bearing portion of bearing portion and the 4th bearing portion 31722 successively.

Like this, by alternately insert the 1st the 31642, the 3rd bearing portion 31721 of the 31641, the 2nd bearing portion of bearing portion and the 4th bearing portion 31722 with respect to the 1st leading axle 3131, even and realize the situation of miniaturization, interval between the 1st bearing portion 31641 and the 2nd bearing portion 31642 and the interval between the 3rd bearing portion 31721 and the 4th bearing portion 31722 also can fully be set, a plurality of strong points can be set and channeling conduct stably, can give full play to the effect of the generation that as far as possible suppresses inclination off-centre etc. in addition.

And, in the present embodiment, as mentioned above, between the 1st lens moving frame body 316 and the 2nd lens moving frame body 317, set up as elastomeric disc spring 318, the 1st lens moving frame body 316 and the 2nd lens moving frame body 317 are stablized relied on a side, constitute therewith corresponding, with the shape of the 1st bearing portion 31641 of the 1st directed section 3164 and the 2nd bearing portion 31642, and the shape mode inequality of the 3rd bearing portion 31721 of the 2nd directed section 3172 and the 4th bearing portion 31722 form.

Promptly, drive in the system at lens with Figure 17, Figure 18 and formation shown in Figure 19, for example, shown in Figure 20 (A)～(D), form the 1st bearing portion 31641 and the shape of the 2nd bearing portion 31642, the 3rd bearing portion 31721 that reaches the 2nd directed section 3172 and the shape of the 4th bearing portion 31722 of the 1st directed section 3164 like that.

Particularly, as following, be formed in the 1st bearing portion 31641 of formation on same the 1st directed section 3164 and the shape of the 2nd bearing portion 31642.

Promptly, the 1st bearing portion 31641 that the A of Figure 18 is ordered, shown in Figure 20 (A), roughly formed fan-shaped, be formed with sliding contacting part 31641a, the 31641b of taper in the outside of the 1st leading axle 3131 (configuration cam gear 314 1 sides), be formed with circular-arc 31641c in the inboard of the 1st leading axle 3131 (configuration shooting optical system 312 1 sides).

Relative therewith, the 2nd bearing portion 31642 that the C of Figure 18 is ordered, shown in Figure 20 (C), roughly formed fan-shaped, be formed with sliding contacting part 31642a, the 31642b of taper in the inboard of the 1st leading axle 3131 (configuration shooting optical system 312 1 sides), be formed with circular-arc 31642c in the outside of the 1st leading axle 3131 (configuration cam gear 314 1 sides).

That is, the 1st bearing portion 31641 and the 2nd bearing portion 31642 are formed as its sliding contacting part folder and are positioned at shape the opposition side every the 1st leading axle 3131.

In view of the above, even make the 1st lens moving frame body 316 and the 2nd lens moving frame body 317 rely on a side, the 1st lens moving frame body 316 is removed with respect to the 1st leading axle 3131 relied on a side state and roughly do not guide obliquely along stabilizer shaft by disc spring 318.

As following, be formed in the 3rd bearing portion 31721 of formation on same the 2nd directed section 3172 and the shape of the 4th bearing portion 31722.

Promptly, the 3rd bearing portion 31721 that the B of Figure 18 is ordered, shown in Figure 20 (B), roughly formed fan-shaped, be formed with sliding contacting part 31721a, the 31721b of taper in the inboard of the 1st leading axle 3131 (configuration shooting optical system 312 1 sides), be formed with circular-arc 31721c in the outside of the 1st leading axle 3131 (configuration cam gear 314 1 sides).

Relative therewith, the 4th bearing portion 31722 that the D of Figure 18 is ordered, shown in Figure 20 (D), roughly formed fan-shaped, be formed with sliding contacting part 31722a, the 31722b of taper in the outside of the 1st leading axle 3131 (configuration cam gear 314 1 sides), be formed with circular-arc 31722c in the inboard of the 1st leading axle 3131 (configuration shooting optical system 312 1 sides).

That is, the 3rd bearing portion 31721 and the 4th bearing portion 31722 are formed as its sliding contacting part folder and are positioned at shape the opposition side every the 1st leading axle 3131.

In view of the above, even make the 1st lens moving frame body 316 and the 2nd lens moving frame body 317 rely on a side, the 2nd lens moving frame body 317 is removed with respect to the 1st leading axle 3131 relied on a side state and roughly do not guide obliquely along stabilizer shaft by disc spring 318.

Below, the cam gear 314 of present embodiment is described.

Figure 21 and Figure 22 are the cam gear of expression present embodiment is supported on the state on the fixed frame by axle partly cut-away's stereographic maps, Figure 23 is the stereographic map of cross-section structure of the integral body of partly cut-away's cam gear of representing present embodiment, and Figure 24 is the sectional view of axle center part of the cam gear of present embodiment.

Shown in Figure 15 waits, cam gear 314 is formed with rotary body 3141 and shoestring 3142, rotary body 3141 can rotate with the turning axle 31411 with the 1st leading axle 3131 and the 2nd leading axle 3132 almost parallels, shoestring 3142 comprises the 1st cam part 31421 and the 2nd cam part 31422, the 1st cam part 31421, lateral surface along rotary body 3141 forms in the mode of rotating according to the rotation of rotary body 3141, and with the 1st lens moving frame body 316 the 1st by clamping part 3163 buckle mutually, and corresponding rotation guides the 1st by clamping part 3163, the 2nd cam part 31422, lateral surface along rotary body 3141 forms in the mode of rotating according to the rotation of rotary body 3141, and with the 2nd lens moving frame body 317 the 2nd by clamping part 3171 buckle mutually, and corresponding rotation guides the 2nd by clamping part 3171.

Shoestring 3142 has on the optical axis direction of shooting optical system mutually the 1st 3142a and the 2nd 3142b of subtend, and the 1st 3142a has the function as the 1st cam part 31421, and the 2nd 3142b has the function as the 2nd cam part 31422.

That is, as shown in figure 15, shoestring 3142 is formed from rearward end side direction leading section to tilt and shape in the shape of a spiral, and the leading section side constitutes the 1st 3142a, and the rearward end side constitutes the 2nd 3142b.

The width of shoestring 3142 is configured to and is formed on the 1st on the 1st lens moving frame body 316 by clamping part 3163 be formed on the 2nd on the 2nd lens moving frame body 317 by the interval of the optical axis direction of clamping part 3171 about equally.

Has such structure, make the 1st lens moving frame body 316 and the 2nd lens moving frame body 317 rely on a side by disc spring 318, therefore, be formed on the 1st on the 1st lens moving frame body 316 by clamping part 3163 be formed on the 2nd on the 2nd lens moving frame body 317 and be clipped on the 1st 3142a and the 2nd 3142b, and can stablize the state of buckle with respect to the 1st 3142a and the 2nd 3142b, i.e. the 1st cam part 31421 and 31422 maintenances of the 2nd cam part by clamping part 3171.

Thereby, also need not will be formed on the 1st on the 1st lens moving frame body 316 by clamping part 3163 be formed on the 2nd on the 2nd lens moving frame body 317 and fixed by clamping part 3171 the 1st 3142a and the 2nd 3142b with respect to shoestring 3142 by screw etc., it is simple that assembling itself becomes.

The 1st 3142a of the shoestring 3142 that forms and the 2nd 3142b form with the step of the function of corresponding the 1st lens combination 3122 and the 2nd lens combination 3123, the 1st lens combination 3122 and the 2nd lens combination 3123 are housed in respectively in the 1st lens moving frame body 316 and the 2nd lens moving frame body 317, respectively form the 1st on the 1st lens moving frame body 316 and the 2nd lens moving frame body 317 by clamping part 3163 and the 2nd by clamping part 3171 by the 1st 3142a and the 2nd 3142b (the 1st cam part and the 2nd cam part) channeling conduct.

And as Figure 21 and shown in Figure 22, this cam gear 314 is provided with the revolving force of accepting not shown motor (motor 161 among Fig. 1) and the gear 31412 that rotates at leading section.

This gear 31412 is for example shown in Figure 25, with gear row 319 interlock mutually of gear of transmitting the rotary driving force of not shown motor (motor 161 among Fig. 1) with the reduction gear ratio of regulation.

And, on cam gear 314, in order to ensure as the 1st lens moving frame body 316 of driven object and the positional precision of the 2nd lens moving frame body 317, and as Figure 23, shown in Figure 24, the leading section 31411a and the rearward end 31411b of the turning axle 31411 of rotary body 3141 are carried out the axle supporting by leading section bearing portion 3143 and rearward end bearing portion 3144 respectively, and, apply the elastic force of regulation and make it to rely on a side towards leading section bearing portion 3143 by 3145 couples of leading section 31411a of disc spring as force application mechanism.

In the present embodiment, the leading section 31411a of turning axle 31411 and rearward end 31411b form roughly contact with respect to leading section bearing portion 3143 and rearward end bearing portion 3144.

Particularly, central part at turning axle 31411, be connected to the leading section 31411a of turning axle 31411 as an end of the disc spring that relies on side's usefulness 3145 of force application mechanism, and the intermediate 3146 that configuration and rearward end bearing portion 3144 roughly contact between disc spring 3145 and rearward end bearing portion 3144.

Intermediate 3146 has roughly spherical shape with a side that contacts with rearward end bearing portion 3144 at least and realizes that the mode of a contact constitutes.In the present embodiment, use spheroid as intermediate 3146.

Cam gear 314 with such formation comes driven in rotation body 3141 rotation by motor (not shown), and by the 1st 3142a of shoestring 3142 and the 2nd 3142b stably guide the 1st by clamping part 3163 and the 2nd by clamping part 3171.

At this moment, rotary body 3141, because apply the elastic force of regulation and make it to rely on a side towards leading section bearing portion 3143 by leading section 31411a as 3145 pairs of turning axles 31411 of disc spring of force application mechanism, so can guarantee higher positional precision, realize that the high lens of precision drive as the 1st lens moving frame body 316 and the 2nd lens moving frame body 317 of driven object.

As mentioned above, according to the Zoom lens unit 300 of present embodiment, shooting optical system 312 becomes the Zoom lens of 3 formations, and the 3rd lens combination 3121 is 1 formation, the 1st lens combination 3122 is 3 formations, the 2nd lens combination 3123 is 1 formation, and 3 of the 1st lens combination 3122 all are made of plastics, therefore, can shorten the optical system length overall, in view of the above, also make the lens diameter miniaturization of the 3rd lens combination 3121 of the lens of diameter maximum, can realize the reduction of cost again.

On optical aberration correcting, dispose by the magnification of optimizing each lens combination, and realize densification, and, on the 1st lens combination 3122 and the 2nd lens combination 3123, suitably dispose aspheric surface, and can further realize densification.By optimizing these conditions,, have high-performance and can reduce the advantage of distortion although be compact Zoom lens.

In addition, in the present embodiment, the focal length adjustment is undertaken by the 2nd lens combination 3123, from infinitely as far as recently to shooting face side shifting, therefore, can subtract narrow in the 1st lens combination 3122 of telescope end and the distance of the 2nd lens combination 3123.In view of the above, can make to become times optical system densification, in addition,, can realize high propertyization and reduce eccentric sensitivity so long as identical size just can dispose rational magnification.

In addition, 3 lens of plastic the 1st lens combination 3122 are positive meniscus lens, diverging meniscus lens, positive biconvex lens formation, therefore, can carry out the spherical aberration revisal well by positive meniscus lens, on diverging meniscus lens, the revisal that can be suppressed at the curvature of the image that positive lens produces is excessive, meanwhile can suppress the change of frame aberration.In view of the above, have and to make balancing performance, suppress the aberration change that doubly produces along with becoming, can become to high-performance advantage doubly.

In addition, fasten,, can realize the Zoom lens of high-performance, compactness by making each power of lens equilibrium in the focal length (f1, f2, f3) and the pass of the focal length fw of the wide-angle side of synthetic magnification grow of each lens combination.

Be defined on the desirable condition with respect to condition by penetrating pupil location to the restriction of the incident angle of imaging apparatus 3151, and wide image angle, compactness, and can relax the restriction of penetrating pupil.

And, in the Zoom lens unit 300 that carries the shooting optical system 312 that can realize miniaturization (densification) like this, the 1st lens moving frame body 316 and the 2nd lens moving frame body 317 face side roughly with the 1st by clamping part 3163 and the 2nd by the formation position of clamping part 3171 roughly relative to the position, to be erected between the 1st lens moving frame body 316 and the 2nd lens moving frame body 317 as elastomeric disc spring 318, so that stablizing, the 1st lens moving frame body 316 and the 2nd lens moving frame body 317 rely on a side, in addition, on the optical axis direction by the 2nd directed section 3172 of the 1st directed section 3164 of the 1st lens moving frame body 316 of the 1st leading axle 3131 guiding and the 2nd lens moving frame body 317 on, form a plurality of bearing portion with predetermined distance respectively, therefore, by the stable guiding of the strong point of a plurality of the 1st leading axles 3131, and, in order to suppress the generation of inclination off-centre etc. as far as possible, with respect to the spaced apart predetermined distance of the 1st leading axle 3131 difference, and insert the 1st bearing portion 31641 successively, the 3rd bearing portion 31721, the 2nd bearing portion 31642, and the 4th bearing portion 31722, thereby the interval between the 1st bearing portion 31641 and the 2nd bearing portion 31642 can be set fully, and the 3rd interval between bearing portion 31721 and the 4th bearing portion 31722, a plurality of strong points can be set and channeling conduct stably, can give full play to the effect of the generation that as far as possible suppresses inclination off-centre etc. again.

Further, in the present embodiment, between the 1st lens moving frame body 316 and the 2nd lens moving frame body 317, set up as elastomeric disc spring 318, the 1st lens moving frame body 316 and the 2nd lens moving frame body 317 are stablized relied on a side, constitute therewith corresponding, with the shape of the 1st bearing portion 31641 of the 1st directed section 3164 and the 2nd bearing portion 31642, and the shape mode inequality of the 3rd bearing portion 31721 of the 2nd directed section 3172 and the 4th bearing portion 31722 form.

In view of the above, even make the 1st lens moving frame body 316 and the 2nd lens moving frame body 317 rely on a side, the 1st lens moving frame body 316 and the 2nd lens moving frame body 317 are removed with respect to the 1st leading axle 3131 relied on a side state and can roughly not guide obliquely along stabilizer shaft by disc spring 318.

Cam gear 314 with such formation comes driven in rotation body 3141 rotation by motor (not shown), and by the 1st 3142a of shoestring 3142 and the 2nd 3142b stably guide the 1st by clamping part 3163 and the 2nd by clamping part 3171.Rotary body 3141, because apply the elastic force of regulation and make it to rely on a side towards leading section bearing portion 3143 by leading section 31411a as 3145 pairs of turning axles 31411 of disc spring of force application mechanism, so can guarantee higher positional precision, realize that the high lens of precision drive as the 1st lens moving frame body 316 and the 2nd lens moving frame body 317 of driven object.

Like this, according to present embodiment, can provide a kind of on the basis that can realize miniaturization, be not easy to produce eccentric error and droop error, mobile lens can be realized the Zoom lens unit that stable position is adjusted swimmingly.

Claims (10)

1. electronic installation is characterized in that:

Have: Zoom lens unit; And the host computer control circuit, the function of tonic chord of its control device, according to the picture signal of driven above-mentioned Zoom lens unit generation by the control signal of specifying anamorphosis function, the above-mentioned functions of stipulating is controlled at least,

Described Zoom lens unit has: optical system, and it disposes the 1st lens combination and the 2nd lens combination at least successively on optical axis; Driving mechanism, its corresponding drive signal drives at least one side in described the 1st lens combination and the 2nd lens combination along above-mentioned optical axis; Image mechanism, it generates picture signal based on the light via above-mentioned optical system; Camera control circuit, its correspondence is based on the control signal of the appointment anamorphosis function of above-mentioned host computer control circuit, set the lens position of above-mentioned the 1st lens combination, and the drive signal that will above-mentioned the 2nd lens combination be driven in the sweep limit corresponding to above-mentioned anamorphosis function based on the picture signal that above-mentioned image mechanism generates exports above-mentioned driving mechanism to

Above-mentioned camera control circuit, can set the sweep limit corresponding to above-mentioned the 2nd lens combination of each function in a plurality of anamorphosis functions, the drive signal that makes above-mentioned the 2nd lens combination carry out independence or continuous sweep in one or more sweep limits the above-mentioned anamorphosis function of correspondence exports above-mentioned driving mechanism to.

2. electronic installation according to claim 1 is characterized in that:

Corresponding to the 1st sweep limit of the 1st anamorphosis function and the adjacent setting of the 2nd sweep limit corresponding to the 2nd anamorphosis function,

Above-mentioned camera control circuit, when having received, export the drive signal that makes above-mentioned the 2nd lens combination in two scopes of above-mentioned the 1st sweep limit and the 2nd sweep limit, carry out continuous sweep to above-mentioned driving mechanism corresponding to the scanning of the 3rd anamorphosis function different indication with the above-mentioned the 1st and the 2nd anamorphosis function.

3. electronic installation according to claim 2 is characterized in that:

As above-mentioned anamorphosis function, also comprise the 4th anamorphosis function,

Above-mentioned camera control circuit, when above-mentioned host computer control circuit has received the control signal of representing above-mentioned the 4th anamorphosis function, export the drive signal that above-mentioned the 2nd lens combination is scanned to above-mentioned driving mechanism in corresponding to the 3rd above-mentioned the 4th anamorphosis function, different with the above-mentioned the 1st and the 2nd sweep limit sweep limit.

4. electronic installation according to claim 1 is characterized in that:

At least comprise the 1st anamorphosis function, the 2nd anamorphosis function and the 3rd anamorphosis function as above-mentioned anamorphosis function,

Above-mentioned camera control circuit, when above-mentioned host computer control circuit has received the control signal of indicating above-mentioned the 1st anamorphosis function, export the drive signal that the 2nd lens combination is scanned to above-mentioned driving mechanism in the 1st sweep limit, when above-mentioned host computer control circuit has received the control signal of indicating above-mentioned the 2nd anamorphosis function, export the drive signal that makes the 2nd lens combination in the 2nd sweep limit interscan adjacent to above-mentioned driving mechanism with above-mentioned the 1st sweep limit, when above-mentioned host computer control circuit has received the control signal of indicating above-mentioned the 3rd anamorphosis function, export the drive signal that the 2nd lens combination is scanned to above-mentioned driving mechanism in the 3rd sweep limit different with above-mentioned the 1st sweep limit and the 2nd sweep limit corresponding to above-mentioned the 3rd anamorphosis function.

5. electronic installation according to claim 1 is characterized in that:

Above-mentioned camera control circuit, when having received the control signal of the lens position setting that makes above-mentioned the 2nd lens combination from above-mentioned host computer control circuit, the drive signal that the lens position that makes above-mentioned the 2nd lens combination to above-mentioned setting is driven exports above-mentioned control gear to.

6. electronic installation according to claim 1 is characterized in that:

Above-mentioned camera control circuit, when having received the control signal of indicative of settings time and continuously automatic focus controlling from above-mentioned host computer control circuit, will make above-mentioned the 2nd lens combination scan and stop at focusing position, export above-mentioned driving mechanism to according to the picture signal of above-mentioned image mechanism shooting through the drive signal that makes above-mentioned the 2nd lens combination scanning behind the above-mentioned setting-up time once more and stop on the focusing position.

7. electronic installation according to claim 6 is characterized in that:

Above-mentioned camera control circuit, when having received the control signal that stops to indicate of representing above-mentioned continuously automatic focus controlling from above-mentioned host computer control circuit, the drive signal that the driving that makes above-mentioned the 2nd lens combination is stopped to export above-mentioned driving mechanism to.

8. electronic installation according to claim 1 is characterized in that:

Above-mentioned camera control circuit, in the process of at least one side in above-mentioned the 1st lens combination of above-mentioned drive mechanism and above-mentioned the 2nd lens combination, when above-mentioned host computer control circuit has received control signal, output makes above-mentioned driving mechanism continue to drive the drive signal of at least one side in above-mentioned the 1st lens combination and above-mentioned the 2nd lens combination, and after above-mentioned driving finishes, carry out processing corresponding to the control signal that receives from above-mentioned host computer control circuit.

9. electronic installation according to claim 1 is characterized in that:

Above-mentioned camera control circuit, when cutting off the electricity supply, the drive signal of the lens position when above-mentioned the 1st lens combination and above-mentioned the 2nd lens combination being stopped at cut off the electricity supply exports above-mentioned driving mechanism to.

10. electronic installation according to claim 1 is characterized in that:

Above-mentioned camera control circuit comprises: image processing circuit, and it exports the picture signal that above-mentioned image mechanism generates, and the timing signal of automatic focus controlling is carried out in output; Drive and Control Circuit, it is when above-mentioned image processing circuit has received above-mentioned timing signal, according to the picture signal of above-mentioned image processing circuit output, will make the drive signal that at least one side drives in above-mentioned the 1st lens combination and above-mentioned the 2nd lens combination export above-mentioned driving mechanism to

Above-mentioned driving mechanism comprises: in the moving area of above-mentioned the 1st lens combination and above-mentioned the 2nd lens combination, to above-mentioned the 1st lens combination and above-mentioned the 2nd lens combination with the direction of above-mentioned optical axis almost parallel at least one leading axle of channeling conduct; Accommodate above-mentioned the 1st lens combination, be formed with the 1st lens moving frame body in the 1st directed section that guides by clamping part and by above-mentioned leading axle with the side of above-mentioned optical axis approximate vertical the upwardly extending the 1st; Accommodate above-mentioned the 2nd lens combination, be formed with the 2nd lens moving frame body in the 2nd directed section that guides by clamping part and by above-mentioned leading axle with the side of above-mentioned optical axis approximate vertical the upwardly extending the 2nd; Moving area and row arrangement with respect to above-mentioned the 1st lens combination and above-mentioned the 2nd lens combination, buckle the above-mentioned the 1st and the 2nd lens moving frame body the 1st and the 2nd by clamping part, to should be able to being the rotation of the rotary body of center rotation with axle with above-mentioned leading axle almost parallel, make said lens move the cam gear that framework moves along above-mentioned leading axle

The rotary body of above-mentioned cam gear, the drive signal of corresponding above-mentioned Drive and Control Circuit and rotating.

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