CN101908348B - Adjusting device and adjusting method for optical pick up - Google Patents
Adjusting device and adjusting method for optical pick up Download PDFInfo
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- CN101908348B CN101908348B CN 201010200207 CN201010200207A CN101908348B CN 101908348 B CN101908348 B CN 101908348B CN 201010200207 CN201010200207 CN 201010200207 CN 201010200207 A CN201010200207 A CN 201010200207A CN 101908348 B CN101908348 B CN 101908348B
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Abstract
The invention relates to an optical pick-up adjusting apparatus and optical pick-up regulation means. The inventive optical pick-up adjusting apparatus includes: a main body part assembled to the optical pick-up device, and having a first fixture part having a claw mounted with an objective lens part with at least one objective lens and a claw adjustment mechanism making the claw moving or rotating; a second fixture part having a mounting fixture mounting the main body part; a camera part generating a beam ejected from the objective lens part; a camera part for generating filmed image of the beam ejected from the objective lens part; and a control part for performing feed back control to the claw adjustment mechanism according to the data for performing vision processing to the filmed image, thereby automatically adjusting the position and deflection of the objective lens part relative to the main body part.
Description
Technical field
The present invention relates to automatically adjust objection lens portion, photo detector, sensing mirror, diffraction grating position separately and optical picker adjuster and light picker method of adjustment (the ADJUSTING DEVICE AND ADJUSTING METHOD FOR OPTICALPICK UP} of skewed error of the light picker that is used for the optical instrument device.
Background technology
On the optical instrument device of CD record or playback of data, arrange as core component CD is scanned and the light picker that reads and writes data.Light picker is made of the various opticses such as laser diode (LD), object lens.For this optics, need separately size in margin tolerance accurately, and be assemblied in accurately position at tracking direction and focus direction, and to CD without deflection incident beam vertically exactly.
At CD-ROM, CD-R, CD-RW, DVD-ROM, DVD-R, the DVD-RW as general CD, and the occasion of the Blu-ray disc of AVCHD, the HD-DVD of the form of the nearest exploitation of conduct and BD-R, BD-RE etc., necessarily require the light picker position of object lens and the accurately adjustment work of deflection.
Manual adjustment method as the adjustment of the position that is used for object lens and deflection, operating personnel are arranged by being connected to the eyepiece on the autocollimation device (collimator), observing light picker with adjusting the position of object lens and the method for angle in the object lens, in addition, in addition the autocollimation device is connected to video camera, and when affirmation outputs to the image of monitor, adjusts the method that light picker is used object lens by operating personnel.
On the other hand, much less general CD in the occasion of the Blu-ray disc of AVCHD, HD-DVD and BD-R, BD-RE etc. being carried out the light picker of access, also requires to carry out the position of photo detector, sensing mirror, diffraction grating and the accurately adjustment work of deflection.
With regard to this adjustment work, the way in past is, prepares many determinators, operates these determinators by operating personnel and judges after the quality of position and deflection, the anchor clamps of photo detector, sensing mirror, diffraction grating are clamped in utilization, manually adjust these parts.
But, these all are the manual operationss that depends on operating personnel's judgement, thereby shortage accuracy, and being not the image that will output to monitor quantizes with the data of quantification, therefore, exist the operation accuracy to depend on the operating personnel's that judge the monitor image experience and the problem of proficiency.Thereby have fine setting and adjust accurately operational difficulties, the certified products throughput rate of light picker descends, and needs the problem of a lot of equipment operating training times when operating personnel replace.
Summary of the invention
The present invention makes in order to improve the problems referred to above, objection lens portion, photo detector, sensing mirror, diffraction grating position separately and the adjustment robotization of deflection by making light picker are provided, thereby eliminate the bad essential factor of generation in the past of the subjective judgement that depends on operating personnel, the fine or not judgment standard of adjustment can be managed with the data of quantification, optical picker adjuster and the light picker method of adjustment of required time of adjustment work can be significantly shortened.
It is characterized in that of optical picker adjuster of the present invention, comprising: be assemblied in the main part of light picker, and possess the first clamp portion of the hook of placing the objection lens portion that at least one object lens is installed and the hook adjusting mechanism that makes above-mentioned hook move or rotate; The second clamp portion that possesses the sectional fixture that above-mentioned main part is installed; Generation is from the video camera section of the photographic images of the beam of above-mentioned objection lens portion ejaculation; And come the above-mentioned hook adjusting mechanism of FEEDBACK CONTROL according to the data of above-mentioned photographic images being carried out visual processes, thereby automatically adjust above-mentioned objection lens portion with respect to the position of aforementioned body section and the control part of deflection.
Description of drawings
Fig. 1 is the vertical view that expression relates to the basic structure of optical instrument device of the present invention.
Fig. 2 is the stereographic map that expression relates to the outward appearance of light picker of the present invention.
Fig. 3 is the rear view that schematic representation relates to the inner structure of light picker of the present invention.
Fig. 4 is the key diagram that expression relates to one of the light path P1 of light picker of the present invention.
Fig. 5 is the stereographic map of the outward appearance of expression optical picker adjuster of the present invention.
Fig. 6 is the side view of first and second unit of expression optical picker adjuster of the present invention.
Fig. 7 is the stereographic map of first and second unit of expression optical picker adjuster of the present invention.
Fig. 8 to Figure 10 is the sketch of the action of explanation clamp portion of the present invention.
Figure 11 is the side view of explanation video camera of the present invention section.
Figure 12 represents the shooting area of high magnification video camera of the present invention and low range video camera.
Figure 13 is one embodiment of the present of invention, and position adjustment is described.
Figure 14 is one embodiment of the present of invention, illustrates to focus on to adjust.
Figure 15 a to Figure 15 d explanation is for an embodiment of the motion track of first and second unit of optical picker adjuster of the present invention.
Figure 16 is the vertical view of opereating specification of first and second unit of expression optical picker adjuster of the present invention.
Figure 17 explanation is for another embodiment of the motion track of first and second unit of optical picker adjuster of the present invention.
Figure 18 is the key diagram that expression utilizes a part of P1 in the light path of the light picker that optical picker adjuster of the present invention adjusts.
Figure 19 is the partial perspective view that expression utilizes the inner structure of the light picker that optical picker adjuster of the present invention adjusts.
Figure 20 is the side view of the major part of expression optical picker adjuster of the present invention.
Figure 21 is the side view of the outward appearance of expression optical picker adjuster of the present invention.
Figure 22 is the front view of the major part of optical picker adjuster of the present invention.
Figure 23 is the side view of the major part of optical picker adjuster of the present invention.
Figure 24 is the process flow diagram of expression light picker method of adjustment of the present invention.
Figure 25 is the block diagram that expression utilizes the basic structure of the photo detector that optical picker adjuster of the present invention adjusts.
Figure 26 and Figure 27 are the key diagrams of explanation PDB coarse steps of the present invention.
Figure 28 and Figure 29 are the explanation key diagrams that defocuses set-up procedure of the present invention.
Figure 30 is the key diagram of explanation PDB trim step of the present invention.
Figure 31 and Figure 32 are the key diagrams of explanation GT set-up procedure of the present invention.
Figure 33 is the key diagram of explanation tracking balance set-up procedure of the present invention.
Among the figure:
The 10-CD, 10a-minute surface, 10b-record surface, 20-panel (deck), 22-spindle drive motor, 24-feed motor (feed motor), 25a-leading rod (main guide rod), the secondary guide rod (subguide rod) of 25b-, 26-cable (cable), the 50-light picker, 60-clamping section, 61-main card folder (mainclamp), 62-vice card folder (sub clamp), 63-lock (locker), the 90-solidified portion, 91-solidifies head, the 100-main part, 110-BD laser diode (LD:laser diode), 1101-BD GT (GT:grating), 1101a-BD GT installation portion, 1101b-BD GT handle, 112-BD optical splitter (BS:beamsplitter), 114-BD collimation lens (CL:collimator lens), 1141-lens arm (lens arm), 1142-leading screw (lead screw), 1143-stepping motor (step motor), 116-BD mirror (mirror), 118-BD PDIC (PD:photo diode), 118a-BD PDIC installation portion, 118b-BD PDIC hole, 1181-BD sensing mirror (SL:sensor lens), 1181a-BD sensing mirror installation portion, 1181b-BD sensing mirror handle, the 120-DVD laser diode, 1201-DVD GT, 122-DVD optical splitter, the 124-DVD collimation lens, the 126-DVD mirror, 128-DVD PDIC, 1281-DVD sensing mirror, 150a-master slider (main slider), the secondary slide block (sub slider) of 150b-, 160-connector (connector), 200-objection lens portion, 201-driver (actuator), the 210-BD object lens, 220-DVD object lens, 250-hook linking part, 251-pin-and-hole (pin hole), the 300-chassis, 301-the first transfer device, 310-the first axis rail (rail), 311-the first axis rail detent (rail stopper), 312-base plate (base plate), 320-the second axis rail, 400-video camera section, 410-low range video camera, 420-high magnification video camera, 450-photographic images, 460-zero order image (zero order beam image), 4601-focuses on the inspection area, 4602-annular image (ring image), 470-1 level beam image (first order beam image), 500a, first and second unit of 500b-(jig portion unit), 501-clamp portion plate (jig portion unitplate), 503-carriage (cylinder bracket), 504-the second transfer device, 506-motor (servomotor), 508-knob (knob), 510-the first axle translation stage (linear table), 520-the second axle translation stage, 5201-fixed station, the 5202-transfer table, 5203-line slideway (linear guide), 530-the 3rd axle translation stage, 540-the first axle turntable (goniometer), 550-the second axle turntable, 560-the first clamp portion, 561-hook (finger), 5612-sells (pin), 562-magnet, 570-the second clamp portion (jigportion), 571-sectional fixture, 580-the 3rd clamp portion, 600a, the 600b-solidified portion, the 700-control part, 1300-diffraction grating adjustment part, 1310-diffraction grating anchor clamps, 1352,1452-the second axis calibration section, 1354,1454-the first axle transfer table, 1356, the second axle feeding section of 1456-feeding platform, 1358, the 3rd axle feeding section of 1458-feeding platform, 1370,1470, the 1570-motor, 1400-sensing mirror adjustment part, 1410-sensing mirror anchor clamps, 1500-photo detector adjustment part, 1510-photo detector anchor clamps, 1552-the 3rd axle lifting table, 1554-the second axle transfer table, 1556-the first axle turntable, the first axle feeding section of 1558-feeding platform, 1559-photo detector anchor clamps shell, 1600-CD adjustment part, 1700-control part.
Embodiment
Fig. 1 is the vertical view that expression relates to the basic structure of optical instrument device of the present invention.Fig. 2 is the stereographic map that expression relates to the outward appearance of light picker 50 of the present invention.Fig. 3 is the rear view that schematic representation relates to the inner structure of light picker 50 of the present invention.Fig. 4 is the key diagram of one of expression 50 the light path that relates to light picker of the present invention P1.
The optical instrument device is the device on the CD 10 of CD-ROM, CD-R, CD-RW, DVD-ROM, DVD-R, DVD-RW, AVCHD, HD-DVD, BD-R, BD-RE etc. with data recording or regeneration.The optical instrument device possesses the spindle drive motor 22 that makes CD 10 rotation and the panel 20 of fixed light pick-up 50.Light picker 50 utilizes feed motor 24 to move to interior week and the peripheral direction of CD 10.In order to guide the slip of light picker 50, leading rod 25a and secondary guide rod 25b are set in the both sides of light picker 50.Light picker 50 carries out interface by the flexible cable 26 such as FPC, FFC and so on the optical instrument device and is connected (interface).
As an embodiment, light picker 50 also can with possess simultaneously object lens 210,220 and the objection lens portion 200 that drives the driver 201 of these object lens be assemblied on the main part 100.Object lens 210,220 utilize driver 201 to carry out servocontrol along tracking direction and focus direction, are pit (Pit) in order to follow the trail of the data recording portion of CD 10.
DVD is red lasers with the laser of light picker 50, and Blu-ray disc uses wavelength to be the blue laser of 405nm.Half i.e. 0.32 μ m that the record width of Blu-ray disc is about DVD, compare with the DVD with max cap. 4.7GB, have the roughly data capacity about 5 times, therefore, BD object lens 210 are wanted to form imperceptibly beam spot, in order to can read on narrower pit width.
Compare with DVD object lens 220, the tracking of BD objective lens 210 and focus control accuracy requirement are higher.Compare with DVD object lens 220, BD object lens 210 require the high precision for the relative position of main part 100 and deflection adjustment.When the objection lens portion 200 that BD object lens 210 will be installed is fixed on the main part 100, if according to existing adjustment mode hand-manipulated, then be difficult for carrying out accurately position and deflection adjustment.These problems are significantly improved by optical picker adjuster of the present invention.
If carry out position and deflection adjustment and be fixed on the main part 100 and after once finishing light picker 50 at the objection lens portion 200 that DVD object lens 220 will be installed in advance, BD object lens 210 are installed to objection lens portion 200, then exist to require the position of high-precision BD object lens 210 and the limit that the deflection adjustment becomes very difficult.
In contrast, if after the objection lens portion 200 that BD object lens 210 will be installed in advance carries out position and deflection adjustment and is fixed on exactly main part 100, DVD object lens 220 are installed to objection lens portion 200, then the DVD object lens 220 of high-precision BD object lens 210 and low precision easily and rapidly can be installed on the light picker 50.Optical picker adjuster of the present invention and light picker method of adjustment are applied on this embodiment, then can increase substantially the throughput rate of light picker 50.
Although exemplified the example of the DVD object lens 220 that high-precision BD object lens 210 and low precision are installed on an objection lens portion 200 simultaneously, the embodiment of optical picker adjuster of the present invention is not limited to this.
The corresponding light picker 50 of illustrated BD possesses the BD optical system and the dvd pickup system of formation DVD with light path P2 that formation BD uses light path P1.
An embodiment as the BD optical system possesses at main part 100: the BD laser diode 110, BD GT1101 (BD GraTing, BD grating), BD optical splitter 112, BD collimation lens 114, BD mirror 116, BD PDIC118, BD sensing mirror 1181 and the lens moving mechanism that become the light source of blue laser.As the BD optical system, at objection lens portion 200 BD object lens 210 are set.
BD GT1101 is equivalent to make the diffraction grating of the optical diffraction of dispersing from BD laser diode 110, possesses the slit that separates take prescribed distance (for example as 35 μ m).If the beam spot that has passed through BD GT1101 is analyzed, then form in the central the peak (high peak) of zero order, form the i.e. ebb (low peak) of ± 1 grade of beam of ± 1 order diffraction light at the periphery of above-mentioned zero order.
BD optical splitter 112 makes from the reflection of the light of BD laser diode 110 incidents and to the CD direction and carries, the light signal that makes the data recording surface that has read CD directly by and carry to BD PDIC118.
As an embodiment, lens moving mechanism possesses: be attached to the lens arm 1141 on the BD collimation lens 114; According to the driven stepping motor 1143 of lens movable signal that receives from control part 700 by connector 160 and Electricity Federation 26; And the leading screw 1142 that the rotation of stepping motor 1143 is converted to the slip of lens arm 1141.
The BD object lens 210 that objection lens portion 200 possesses utilize possesses the driver 201 of voice coil loudspeaker voice coil (voice coil) and magnet along tracking direction and focus direction control position.
BD PDIC118 is the optical sensor that is subjected to that the light signal that will read CD is converted to electric signal, for example is photodiode.
On the other hand, an embodiment as the dvd pickup system possesses at main part 100: the DVD laser diode 120 that produces red laser; Be equivalent to make the DVD GT1201 of the diffraction grating of the optical diffraction that penetrates from DVD laser diode 120; DVD optical splitter 122; DVD collimation lens 124; DVD mirror 126; With the light signal that has read DVD be converted to electric signal as the DVDPDIC128 that is subjected to optical sensor; And make light signal be focused at the DVD sensing mirror 1281 of DVD PDIC 128.As the dvd pickup system, at objection lens portion 200 DVD object lens 220 are set.
The driving power of main part 100 and control signal and be installed in the tracking of driver 201 of objection lens portion 200 inside and focus control signal by cable 26 and connector 160 input and output to light picker 50.
On the other hand, at objection lens portion 200 hook linking part 250 is set, so that hook 561 (with reference to Fig. 7) can clamping objection lens portion 200 when the position of adjusting objection lens portion 200 and deflection, form at the back side of main part 100 porose so that hook 561 (with reference to Fig. 7) can enter to hook linking part 250.
Form pin-and-hole 251 at hook linking part 250, insert the pin 5612 (with reference to Fig. 7) of hook 561 (with reference to Fig. 7) at pin-and-hole 251, utilize the link of pin 5612 (with reference to Fig. 7) and pin-and-hole 251, the hook linking part 250 of objection lens portion 200 is directed to the certain position of hook 561 (with reference to Fig. 7).
Optical picker adjuster of the present invention mainly is divided into two kinds of embodiment.A kind of is position and the deflection of adjusting objection lens portion, is exactly that Fig. 5 is to optical picker adjuster shown in Figure 17.Another kind is automatically to adjust photo detector, sensing mirror, diffraction grating position and deflection separately, is exactly that Figure 18 is to optical picker adjuster shown in Figure 33.
At first, the position of adjustment objection lens portion and optical picker adjuster and the light picker method of adjustment of deflection are described.
Fig. 5 is the stereographic map of the outward appearance of expression optical picker adjuster of the present invention.Fig. 6 is the side view of first and second unit of expression optical picker adjuster of the present invention.Fig. 7 is the stereographic map of first and second unit of expression optical picker adjuster of the present invention.Fig. 8 to Figure 10 is the sketch of the action of explanation clamp portion of the present invention.With reference to Fig. 5 to Figure 10, optical picker adjuster and light picker method of adjustment are described simultaneously.
Control part 700 with the data of photographic images 450 having been carried out visual processes as benchmark to hook adjusting mechanism transfer control signal, and position and the deflection of regulating hook 561, thus automatically adjust position and the deflection that is installed in the objection lens portion 200 on the hook 561.
In the first clamp portion 560 objection lens portion 200 is installed, in the second clamp portion 570 main part 100 is installed.
The first clamp portion 560 possesses the hook 561 of clamping hook linking part 250 and regulates the position of hook 561 and the hook adjusting mechanism of deflection.Hook 561 is connected with magnet 562, utilizes the permanent magnetic of magnet 562 or electromagnetic force that the binding strength of hook 561 with hook linking part 250 is provided.
The second clamp portion 570 possesses the relative position of 571 pairs of video camera sections 400 of adjusting sectional fixture and the correcting mechanism of posture.
At this moment, it is desirable to also to arrange the 3rd clamp portion 580 that cable 26 or probe (not shown) is connected to automatically the connector 160 of main part 100, cable 26 or probe will generate the driving power of the required main part 100 of photographic images 450 and control signal to main part 100 inputs.
On the other hand, define the spatially first virtual axle of quadrature (for example being the x axle), the second axle (for example being the y axle) and the 3rd axle (for example being the z axle).
The hook adjusting mechanism possesses: the first axle translation stage 510 of adjusting the first shaft position of hook 561; Adjust the second axle translation stage 520 of the second shaft position of hook 561; Adjust the 3rd axle translation stage 530 of the 3rd shaft position of hook 561; Adjust the first axle turntable 540 of the first axis deviation Tx of hook 561; Adjust the second axle turntable 550 of the second axis deviation Ty of hook 561; And motor 506.
Each translation stage 510,520,530 and turntable 540,550 bring into play position and skew adjustments function by relatively moving of fixed station 5201 and transfer table 5202.Between fixed station 5201 and transfer table 5202, be provided with line slideway 5203 and the guiding single-way moving.In translation stage 510,520,530, fixed station 5201 is the plane with the surface of contact of transfer table 5202, and in turntable 540,550, fixed station 5201 forms curved surface with the surface of contact of transfer table 5202.In the occasion of the 3rd axle translation stage 530, fixed station 5201 is made inclination with the surface of contact of transfer table 5202, thus when single-way moving capable of regulating height.
Correcting mechanism possesses: the 3rd axis calibration platform 530 of the 3rd shaft position of calibration sectional fixture 571 '; The first axis deviation adjusting turntable 540 of the first axis deviation Tx of calibration sectional fixture 571 '; And the second axis deviation adjusting turntable 550 of the second axis deviation Ty of calibration sectional fixture 571 '.It is desirable to, these parts utilize knob 508 to carry out manual adjustments.
The structure of the first clamp portion 560 and the second clamp portion 570 is described and acts on as follows with reference to Fig. 7 to Figure 10.
At first, main part 100 is thrown in sectional fixture 571.The side of the master slider 150a side of main part 100 is close on the reference field 5715 that is fixed on sectional fixture 571.The back side of the master slider 150a side of main part 100 is supported by support component 5711a.The main card folder 5712a that is installed on the block 5714 presss from both sides among cylinder body 5713a work and the insertion master slider 150a by main card.
The secondary slide block 150b of main part 100 is enclosed within on the fixed bar 5711b of sectional fixture 571, and vice card folder 5712b locks flowing of (locking) secondary slide block 150b by the work of vice card folder cylinder body 5713b.The side of the secondary slide block 150b side of main part 100 also is close on the reference field 5715 that is fixed on sectional fixture 571.
With reference to Figure 10, objection lens portion 200 is rendered to the upside of hook 561.Main part 100 is rendered to sectional fixture 571 or can be utilized manual operations to carry out the process that objection lens portion 200 is rendered to hook 561, also can utilize not shown automatic switching laying mechanism to carry out.If the hook linking part 250 of objection lens portion 200 is placed on the hook 561, then the magnetic force according to magnet 562 prevents rocking of objection lens portion 200.The accurately installation site of hook linking part 250 is enclosed within the pin 5612 that is formed on the hook 561 and guides by being formed at pin-and-hole 251 on the hook linking part 250.
After the installation of main part 100 and objection lens portion 200, then cable 26 or probe (not shown) utilize the 3rd clamp portion 580 automatically to link with the connectors 160 of main part 100, and control part 700 will be inputted to main part 100 be used to driving power and the control signal of the optics of main part 100 inside of obtaining photographic images 450.
Although specifically do not illustrate the structure of the 3rd clamp portion 580, also can possess: the cable mechanism for picking that picks up cable 26 or probe (not shown); The travel mechanism that the cable mechanism for picking is moved; With the guide of cable mechanism for picking to connector 160 guiding; And untie or the connector operating mechanism of the locking of lock connector 160.
The quality judgement of the connecting state of cable 26 or probe and position and the following solution of ability of posture control of the 3rd clamp portion 580, utilize video camera section 400 to take by the periphery with connector 160, and carry out visual processes at control part 700, and the 3rd clamp portion 580 is carried out FEEDBACK CONTROL.
The installation of main part 100 and objection lens portion 200 and the link of connector 160 have been finished if utilize the first clamp portion 560, the second clamp portion 570 and the 3rd clamp portion 580, then 400 acquisitions of video camera section have begun to pass through the beam image of the light signal of objection lens portion 200 from main part 100, and come FEEDBACK CONTROL hook adjusting mechanism according to the data that this beam image is carried out visual processes, thereby carry out position and the deflection adjustment of objection lens portion 200.At this moment, the hook adjusting mechanism is to the first axle, the second axle, the 3rd direction of principal axis translation, or centered by the first axle, rotate, or centered by the second axle, rotate.
Figure 11 is the side view of explanation video camera of the present invention section 400.Figure 12 represents the shooting area of high magnification video camera 420 of the present invention and low range video camera 410.Figure 13 is one embodiment of the present of invention, and position adjustment is described.Figure 14 is one embodiment of the present of invention, illustrates to focus on to adjust.Describe the action of optical picker adjuster in detail with reference to Fig. 5 to Fig. 7, Figure 11 to Figure 14.
The photographic images 450 of the beam of objection lens portion 200 has been passed through in generation, and photographic images 450 carried out visual processes, come FEEDBACK CONTROL hook adjusting mechanism according to above-mentioned data of carrying out visual processes, thereby automatically adjust objection lens portion 200 with respect to position and the deflection of main part 100, this set-up procedure is carried out as follows.
At first with reference to Figure 11, video camera section 400 possesses the low range video camera 410 that forms low range photographic images CAM1 and the high magnification video camera 420 that forms high magnification photographic images CAM2.
With reference to Figure 12, represent simultaneously high magnification photographic images CAM2 and low range photographic images CAM1.For example, high magnification photographic images CAM2 is the captured image of high magnification video camera 420, and low range photographic images CAM1 is the captured image of low range video camera 410.As an embodiment, control part 700 is when adjusting the position of objection lens portion 200, one of low range photographic images CAM1 or high magnification photographic images CAM2 are carried out visual processes, and when the focusing of adjusting objection lens portion 200 or deflection, CAM2 carries out visual processes to the high magnification photographic images.
With reference to Figure 13, explanation will be reflected the position movement method that moves to the center of photographic images 450 in the position of the beam image of video camera section 400.The left side of Figure 13 represents the beam image before the adjustment of position, and the right side represents the beam image after the adjustment of position.
As an embodiment, control part 700 FEEDBACK CONTROL hook adjusting mechanisms are so that the zero order image 460 of photographic images 450 and 1 grade of beam image 470 are arranged in the center of low range photographic images CAM1 or high magnification photographic images CAM2, thereby adjust the position (x shaft position and y shaft position) of objection lens portion 200.As shown in the figure, utilized low range photographic images CAM1.By FEEDBACK CONTROL the first axle translation stage 510 and the second axle translation stage 520, the center that x shaft position and the y shaft position of beam image can be aligned to photographic images 450 is adjusted x shaft position and the y shaft position of objection lens portion 200 thus.
With reference to Figure 14, an embodiment of the focusing regulation method of correlation beam images adjustment focus direction position (z shaft position) is described.According to this embodiment, control part 700 FEEDBACK CONTROL hook adjusting mechanisms are so that high magnification photographic images CAM2 is divided into the area that respectively focuses on inspection area 4601 of a plurality of focusing inspection area 4601 rear beam images is mutually the same, thereby adjust the focusing (namely, focus direction position) of objection lens portion 200.This method is based on method of astigmatism (astigmatic method).
At the beam image during to a side distortion, the focus face that means the video camera section 400 relative with the data recording surface of CD is far away with the partition distance of the focus direction that is installed in the objection lens portion 200 on the hook 561, during to the opposite side distortion, mean the focus direction close together of objection lens portion 200 at the beam image.At this moment, the correlation beam images carries out visual processes and adjusts the 3rd axle translation stage 530 so that respectively to focus on the area of inspection area 4601 identical, then the focus direction position of objection lens portion 200 can be adjusted in the error range.
The deflection of objection lens portion 200 will cause a part ambiguous broom shape (coma) aberration as the comet tail of beam image.The coma aberration of a part of distortion of beam image is disengaged, and just means that the deflection of objection lens portion 200 is adjusted.As an embodiment, control part 700 FEEDBACK CONTROL hook adjusting mechanisms so that broom shape (coma) aberration in high magnification photographic images CAM2, remove, thereby adjust the deflection of objection lens portion 200.
In addition, as an embodiment, control part 700 FEEDBACK CONTROL hook adjusting mechanisms are so that consistent with each other for the Gaussian distribution of each axis of projection of high magnification photographic images CAM2, thereby adjust the deflection of objection lens portion 200.
Figure 15 a to Figure 15 d explanation is for first and second unit 500a of optical picker adjuster of the present invention, the motion track of 500b.Figure 16 is the vertical view of opereating specification of first and second unit 500a, the 500b of expression optical picker adjuster of the present invention.
With reference to Fig. 5 to Fig. 7, Figure 15 a to Figure 15 d, Figure 16, a plurality of first and second unit 500a, 500b are set together, carry out simultaneously set-up procedure, engagement step, curing schedule, thereby increase substantially the throughput rate of optical picker adjuster.
At first with reference to Fig. 5, prepare respectively the first clamp portion 560 and above-mentioned the second clamp portion 570 and be installed in first module 500a and second unit 500b on the clamp portion plate 501.Namely, optical picker adjuster of the present invention possesses a plurality of first and second unit 500a, 500b.
Base plate 312 is along the first axis rail 310 guiding that are arranged on the chassis 300, and the shift position is limited by the first axis rail detent 311.
The second transfer device 504 passes on first module 500a and second unit 500b on base plate 312 separately to second direction (y direction of principal axis).The second transfer device 504 is arranged to the cylinder form, and pushing carriage 503 moves separately clamp portion plate 501 and is advisable.Clamp portion plate 501 is along the second axis rail 320 guiding that are formed on the base plate 312.
With reference to Figure 16, each first and second unit 500a, the 500b that the first clamp portion 560 and the second clamp portion 570 are installed repeatedly is transferred to and adjusts district's III, bonding land IV, curing area I, V, discharge/input district II, VI.
Adjusting district's III is the zone of facing with video camera section 400, is the zone of adjusting the set-up procedure of the position of objection lens portion 200 and deflection.The bonding land IV is to carry out and will finish the zone of the objection lens portion 200 of adjustment to the engagement step of main part 100 joints.Curing area I, V are configuration make the light picker 50 of the finishing joint solidified portion 600a that solidifies, the zones of 600b, are the zones of the curing schedule that solidifies of the light picker 50 that makes objection lens portion 200 and main part 100 finish joint.For example, be the occasion of UV hardening agent at grafting material, solidified portion 600a, 600b be ultraviolet ray (UV) irradiation unit preferably.
Discharge/throw in district's II, VI and be carry out discharge step that the light picker 50 of finishing curing is discharged and will new main part and objection lens portion respectively to the zone of the input step of the first clamp portion 560 and 570 inputs of the second clamp portion.
In the occasion that possesses first module 500a and second unit 500b, it is desirable to, the bonding land IV is positioned at the place ahead of video camera section 400, the curing area I of first module 500a is positioned at a side of video camera section 400, the discharge of first module 500a/input district II is positioned at curing area I the place ahead of first module 500a, the curing area V of second unit 500b is positioned at the opposite side of video camera section 400, and the discharge of second unit 500b/input district VI is positioned at curing area V the place ahead of second unit 500b.
Thus, when carrying out for the set-up procedure of first module 500a and engagement step, can carry out simultaneously input step, the curing schedule for second unit 500b and discharge in the step at least one.
Figure 17 explanation is for another embodiment of the motion track of first and second unit of optical picker adjuster of the present invention., it is characterized in that solidified portion 600a, 600b liftable, first module 500a and the unidirectional translation of second unit 500b here.
Thus, at a side and the opposite side of adjusting the district solidified portion is set separately, first module moves towards the solidified portion of a side after adjusting the district to finish the position of objection lens portion and deflection adjustment, and second unit moves to after the solidified portion of a side mobile to adjusting the district in first module.
Namely, solidified portion 600a, 600b be arranged to liftable, main part and objection lens portion were discharged/are thrown in the first clamp portion and the second clamp portion respectively when solidified portion rose, the objection lens portion that solidified portion has engaged when descending solidifies.
According to these embodiment, the motion track of first module 500a and second unit 500b be limited in unidirectional on, thereby save moving range (moving span), not only be conducive to adjust rapidly and curing operation, can also make size and the greatly miniaturization of volume of optical picker adjuster, even if be not provided for first module 500a and second unit 500b also can not to the parts that a plurality of directions move, thereby have structure and become simple, the fault occurrence probability reduces, and significantly reduces the advantage of component count.
Below, illustrate automatically adjust photo detector, sensing mirror, diffraction grating separately position and the optical picker adjuster of deflection and utilized the light picker method of adjustment of this device.
Figure 18 is the key diagram that expression utilizes a part of P1 in the light path of the light picker that optical picker adjuster of the present invention adjusts.Figure 19 is the partial perspective view that expression utilizes the inner structure of the light picker that optical picker adjuster of the present invention adjusts.Figure 20 is the side view of the major part of expression optical picker adjuster of the present invention.Figure 21 is the side view of the outward appearance of expression optical picker adjuster of the present invention.Figure 22 is the front view of the major part of optical picker adjuster of the present invention.Figure 23 is the side view of the major part of optical picker adjuster of the present invention.
With reference to Figure 18 to Figure 23 to automatic adjustment photo detector, sensing mirror, diffraction grating separately the position and optical picker adjuster and the light picker method of adjustment of deflection describe.
This optical picker adjuster comprises clamping section 60, adjustment part 1300,1400,1500, solidified portion 90.This optical picker adjuster can further comprise CD adjustment part 1600, control part 1700.
Clamping section 60 is positions that light picker 50 is installed, and possesses main card folder 61, vice card folder 62 and lock 63.The master slider 150a of main part 100 carries out dismounting by the main card folder 61 that moves back and forth along the x direction of principal axis like that shown in label Lp, the secondary slide block 150b of main part 100 is inserted in vice card folder 62, and suppresses secondary slide block 150b side flow by the lock 63 that rotates like that shown in label Tp.
Solidified portion 90 will finish in diffraction grating 1101, photo detector 118 and the sensing mirror 1181 of the adjustment of its position and posture by adjustment part 1300,1400,1500 at least one be fixed on the light picker 50.
As an embodiment, solidified portion 90 possesses and is positioned at adjustment part 1300,1400,1500 upside and to the curing of light picker 50 irradiation UV 91.As an embodiment, if finish by adjustment part 1300,1400,1500 adjustment work, then utilize the applicator adhesive-applying, solidified portion 90 is cured to being coated in the bonding agent irradiation light on diffraction grating 1101, photo detector 118 and the sensing mirror 1181.
BD optical system to light picker 50 describes.Diffraction grating adjustment part 1300 rotates BD GT1101 centered by the optical axis of light picker 50, thus the angle that the adjustment main beam becomes with secondary beam or the phase differential of a plurality of secondary beams.The optical axis of light picker 50 becomes the virtual linear axis that prolongs along label P1.
Diffraction grating adjustment part 1300 possesses: be connected to the first axle transfer table 1354 that moves by on the motor 1370 of control part 1700 control and to the first direction of principal axis; Be connected on the first axle transfer table 1354 and by the diffraction grating anchor clamps 1310 of control the first direction of principal axis position.
The first axle transfer table 1354 is arranged on the top of the second axis calibration section 1352, in order when diffraction grating anchor clamps 1310 contact with diffraction grating 1101 by the action of the second axle feeding section 1356 or separate, to regulate it near error and the contact force of position, the second axis calibration section 1352 is set.
Diffraction grating anchor clamps 1310 contact with BD GT handle 1101b on being arranged on BD GT1101, and the position control by control part 1700 makes BD GT1101 rotation, thereby is adjusted at angle that photo detector 118 main beams become with secondary beam or the phase differential of a plurality of secondary beams.
BD GT1101 rotatably inserts BD GT installation portion 1101a, thereby when 1310 translation of diffraction grating anchor clamps, BD GT1101 rotates in BD GT installation portion 1101a.
Diffraction grating anchor clamps 1310 are close when throwing in light picker 50, and diffraction grating anchor clamps 1310 deviate from when discharging light picker 50.Thereby diffraction grating anchor clamps 1310 alternately come and go at the spaced position of readiness of diffraction grating anchor clamps 1310 and the contacted contact position of diffraction grating handle 1101b and diffraction grating anchor clamps 1310 and diffraction grating handle 1101b.
For this reason, diffraction grating adjustment part 1300 possesses the feeding platform that diffraction grating anchor clamps 1310 are come and gone at contact position and position of readiness.As an embodiment, the feeding platform possesses to the second axle feeding section 1356 that the second axle moves and the 3rd axle feeding section 1358 that moves to the 3rd axle.
Photo detector adjustment part 1500 rotates photo detector 118 and the angle of deviation of adjustment centered by the optical axis of photo detector 118 centered by optical axis, and in the virtual plane perpendicular to optical axis, make the position movement of photo detector 118, thereby adjust main beam for the balance that is divided into 4,6,8 etc. main areas of photo detector 118.
In the angle of deviation centered by the optical axis of photo detector 118 with adjusted position postpone in perpendicular to the virtual plane of optical axis, be bonded on the photo detector installation portion 118a.
Photo detector adjustment part 1500 possesses at least one in the 3rd axle lifting table 1552, the second axle transfer table 1554, the first axle turntable 1556, the photo detector anchor clamps 1510.
The 3rd axle lifting table 1552 is connected to by on the motor 1570 of control part 1700 controls and to the 3rd direction of principal axis lifting.For this reason, possess contacted two dip plane, above-mentioned two dip plane relatively move by motor 1570, thereby regulate the axial height of z.
The second axle transfer table 1554 is in the linear stage of y direction of principal axis traveling priority, utilizes direct motor drive.
The first axle turntable 1556 possesses contacted two arc surfaces, and above-mentioned two arc surfaces relatively move by motor, thereby regulates the angle of deviation centered by the x axle.
Photo detector anchor clamps 1510 insert the photo detector hole 118b that is positioned on the photo detector 118, be positioned at the upper end of the 3rd axle lifting table 1552, the second axle transfer table 1554, the first axle turntable 1556, according to their position and declination control and translation in the y-z plane, and centered by the x axle, rotate.
Like this, photo detector anchor clamps 1510 are subject to the control of 3 axles, thereby the angle of deviation of photo detector 118 and position are adjusted, and main beam is adjusted for the balance of divided a plurality of main areas of photo detector 118.
Photo detector anchor clamps 1510 insert photo detector anchor clamps shell 1559 movably.
Photo detector anchor clamps 1510 are close when throwing in light picker 50, and photo detector anchor clamps 1510 deviate from when discharging light picker 50.Therefore, photo detector anchor clamps 1510 alternately come and go from the position of readiness that photo detector hole 118b separates with photo detector anchor clamps 1510 at the contact position of photo detector anchor clamps 1510 insertion photo detector hole 118b.
For this reason, photo detector adjustment part 1500 possesses the feeding platform that photo detector anchor clamps 1510 are come and gone at contact position and position of readiness.As an embodiment, the feeding platform possesses the first axle feeding section 1558 that moves along a first axis.
Sensing mirror adjustment part 1400 makes sensing mirror 1181 along the optical axis translation, thereby adjusts defocusing of photo detector 118.Sensing mirror adjustment part 1400 possesses the first axle transfer table 1454 and sensing mirror anchor clamps 1410.
The first axle transfer table 1454 is connected to by moving on the motor 1470 of control part 1700 controls and to the first direction of principal axis.Sensing mirror anchor clamps 1410 are connected on the first axle transfer table 1454 and the first direction of principal axis location-controlled system, and contact and sensing mirror 1181 is moved to optical axis direction with sensing mirror handle 1181b on being arranged on sensing mirror 1181, defocus thereby adjust.
The first axle transfer table 1454 is arranged on the top of the second axis calibration section 1452, in order when diffraction grating anchor clamps 1410 contact with sensing mirror 1181 by the action of the second axle feeding section 1456 or separate, to regulate it near error and the contact force of position, the second axis calibration section 1452 is set.
For input and the discharge of light picker 50, sensing mirror adjustment part 1400 possesses the feeding platform that sensing mirror anchor clamps 1410 is moved in the mode that alternately comes and goes at the spaced position of readiness of sensing mirror anchor clamps 1410 and the contacted contact position of sensing mirror handle 1181b and sensing mirror anchor clamps 1410 and sensing mirror handle 1181b.As an embodiment, the feeding platform possesses along the second axle feeding section 1456 that the second axle moves and the 3rd axle feeding section 1458 that moves along the 3rd axle.
On the other hand, in order to rotate movement and the deflection of CD 10 and calibration disc 10, CD adjustment part 1600 is set preferably.CD adjustment part 1600 comprises: the y pillow block 654 that is positioned at line slideway 652 tops and manually moves along the y direction of principal axis; Be arranged on the top of y pillow block 654 and the x pillow block 656 that manually moves along the x direction of principal axis; Be arranged on the top of x pillow block 656 and the y axle turntable 658 that when knob 670 rotation, centered by the y axle, rotates; And the z pillow block 659 that makes CD 10 liftings.Although not shown, CD adjustment part 1600 possesses the spindle drive motor that makes CD 10 rotations, make CD 10 rotations in order to adjust with desirable speed.
The basic structure of photo detector 118 is described with reference to Figure 25.Use differential recommending (DPP:Differential Push-Pull) mode in order to carry out tracking servo at the optical instrument device.
According to differential recommending (DPP) mode, utilize diffraction grating beam to be separated into 3 beams that reach ± 1 grade (two secondary beams) and so on such as zero level (main beam).And, behind CD irradiation main beam and two secondary beams, detect the reflected signal that the irradiation according to above-mentioned beam causes by photo detector, the signal that detects is output as tracking error signal (TES:Tracking Error Signal) through the calculating process of regulation.
Be subjected to light-struck main areas MPD to be divided into A, B, C, four zones of D, accept the incident of main beam, the the first sub area SPD1 that accepts 1 grade of beam incident is divided into E, two zones of F, and the second sub area SPD2 that accepts-1 grade of beam incident is divided into G, two zones of H.
Here, the tracking error signal TES that detects by differential push pull mode is that DPP is as follows.
DPP＝[(A+B)-(C+D)]-k[(E-F)+(G-H)]。
Figure 24 is the process flow diagram of expression light picker method of adjustment of the present invention.Action and the light picker method of adjustment of optical picker adjuster are described with reference to this figure.
1) throws in light picker
At first light picker is rendered to (S1) on the optical picker adjuster, this light picker possesses: the laser diode that produces light; To become from the optical diffraction that laser diode is dispersed the diffraction grating of main beam and a plurality of secondary beams; Have to be received in CD reflection and passed through a plurality of main areas that the mode of the main beam of object lens cuts apart and the photo detector that receives a plurality of sub areas of secondary beam; And make main beam and secondary beam be focused at the sensing mirror of photo detector.
2) link clip and cable
Mobile main card folder 61 links lock 63 so that the light picker 50 of throwing in can be installed on the clamping section 60 at vice card folder 62, is used for the cable 26 (S2) of signal input and output in connector 160 connections of light picker 50.
3) coarse adjustment PDB (Photo Diode Balance)
The S3 step is PDB (Photo Diode Balance) coarse steps, and its physical significance is illustrated among Figure 26.The process of this step is, apply interchange (AC) voltage of several Hz～tens Hz for example and make BD object lens 210 scan up and down (sweep) to drive at the driver 201 of light picker 50, if can detect the peak value difference VPP=(A+C)-(B+D) of the focus error signal that occurs this moment, photo detector 118 is moved and rotate, surpass more than the certain value so that the signal sum of main areas is the RF signal, by focus servo object lens 210 are transferred in the depth of focus.
Namely until the position that the light signal that main areas A, B, C, D receive separately makes photo detector 118 till greater than the first critical value to y axle and z direction of principal axis translation (Ly, Lz), and makes photo detector 118 rotate (Tx) (S4) centered by the optical axis (the x axle of Figure 20) of light picker 50.And, be enough normal values if judge the RF signal, then by focus servo object lens 210 are transferred in the depth of focus.
With reference to Figure 27, the physical significance of PDB coarse adjustment can be understood as, position and the deflection of harmonizing photo detector 118 in the mode that all can accept the incident of light in 4 main areas of A, B, C, D.After the PDB coarse adjustment is finished, carry out defocusing set-up procedure.
4) adjustment defocuses (defocus)
Defocusing (defocus) set-up procedure (S5) is to make the position of sensing mirror 1181 mobile so that the step of the dc voltage maximum of the RF signal of main areas along the optical axis (the x axle of Figure 20) of light picker 50.Just can easily understand that the physical significance that defocuses set-up procedure with reference to Figure 28.If the sensing mirror 1181 of converging light on photo detector 118 is moved along optical axis direction, the signal sum that then has main areas A, B, C, D is that the DC value of RF signal becomes maximum point, the state that focused on photo detector 118 this moment exactly.
With reference to Figure 18, the following function of sensing mirror 1181 performances.Namely, make the separation delta A of laser diode 110 and optical splitter 112 consistent with the separation delta B of optical splitter 112 and photo detector 118, thereby form good focus state at photo detector 118.
Namely, defocusing set-up procedure is to make in CD 10 catoptrical focuses with consistent in the focus of photo detector 118 formation signals, thereby adjust the RF signal the largelyst, this means the main areas that the diameter that is focused into main beam all enters photo detector 118, thereby do not have the loss of light quantity.
Just focus on (justfocus) in order to make from the light of CD 10 reflections on the sensitive surface of photo detector 118, the core that defocuses adjustment is to adjust sensing mirror 1181, so that it is identical with the length of the light path of returning photo detector to incide the light path of CD 10.
5) fine setting PDB
The below carries out PDB trim step (S7).
Figure 30 represents the physical significance of PDB trim step preferably.The PDB trim step is until main beam and main areas become till the same center, the position of photo detector 118 is moved along y axle and z direction of principal axis, and centered by optical axis (being illustrated as the x axle) rotation photo detector 118 and adjust the step of the angle of deviation of photo detector 118.Preferably rotating CD 10 with normal speed, and carrying out under the state after the minute surface 10a that does not record data is faced object lens 210.
6) adjust GT
The below carries out GT set-up procedure (S9).The physical significance that represents preferably the GT set-up procedure among Figure 31 and Figure 32.With reference to Figure 31, expression single track (one-track) is adjusted, and Figure 32 represents the meaning of GT fine setting.
In the GT set-up procedure, single track (one-track) adjustment is that rotation diffraction grating 1101 is so that a plurality of secondary beam becomes the step of the inclination angle theta of regulation with the track of CD 10.Rotation diffraction grating 1101, then the track angulation of adjustable auxiliary beam and CD 10 centered by optical axis.
The reasons are as follows of the inclination angle theta that need to stipulate.In order to realize satisfactory tracking servo, 3 beam approaches of main beam and two secondary beams have been used in use, during take main beam as benchmark, the departure degree of each secondary beam is that p/4 is advisable to depart from 1/4 of track pitch p, so just can obtain desirable tracking servo performance.
At this moment, the Vpp of the Vpp of sub area E and sub area H has 180 ° phase differential ideally.Thereby, the Vpp of sub area E and the Vpp addition of sub area H are then become 0 ideally.
Carry out the fine setting of diffraction grating 1101 after single track (one-track) adjustment is finished, this refers to rotate minutely diffraction grating 1101 and finely tunes, so that the phase differential of the Vpp of the Vpp of sub area E and sub area H is near 180 ° of desirable values.
When the quality of carrying out the GT fine setting is judged, if the light output sum of the output of the light of the sub area E of photo detector 118 and sub area F becomes the minimum value near 0, then be judged as fine setting and be fit to.
Namely, the GT set-up procedure comprises: rotation diffraction grating 1101 is so that a plurality of secondary beam becomes the single track (one-track) of the inclination angle theta of regulation to adjust with the track of CD 10; And rotate minutely diffraction grating 1101 so that the light output sum of the output of the light of sub area E and sub area F becomes the fine setting near 0 minimum value.
7) adjust T-balance
The below can further carry out tracking balance (T-balance) set-up procedure (S11).This refers to that making the difference that is added in the electric signal among sub area E, the F by adjustment is 0, and with reference to Figure 33 as can be known, making the sum of the Vpp of the Vpp of sub area E and sub area H by adjustment is that the direct current offset (DC offset) of E+F becomes 0.
Use jitter analysis instrument (Jitter meters) and measure amount of jitter, making the Vpp sum of sub area H by adjustment is that the direct current offset (DC offset) of E+F becomes 0.
8) joint and curing
If above-mentioned all processes are finished, then be clipped in diffraction grating 1101 on the diffraction grating anchor clamps 1310, be clipped in sensing mirror 1181 on the sensing mirror anchor clamps 1410, be clipped in adhesive-applying (S12) on the photo detector 118 on the photo detector anchor clamps 1510, and at solidified portion 90 irradiation UV so that bonding agent solidifies (S13), thereby these opticses are fixed with accurately position and the angle of deviation of light picker 50.
9) discharge and again throw in light picker
Adjust, engage, solidify the light picker 50 of finishing and discharge from optical picker adjuster, the new light picker 50 that need to adjust is rendered to clamping section 60.
According to the present invention, depend on when significantly carrying out manual operations operating personnel proficiency the adjustment precision and eliminate potential bad generation essential factor, can eliminate operating personnel's required in the manual operations equipment education time, because position and the deflection of objection lens portion are adjusted in application by the numeric data of the visual processes of photographic images, thereby can guarantee certain mass, since with a plurality of first and second unit can adjust simultaneously, engage, the process of curing etc., thereby have advantages of and boost productivity.
In addition, the numeric data of the light signal of CD has been read in application, not only adjust objection lens portion and also adjust position and the deflection of diffraction grating, photo detector, sensing mirror etc., thereby can guarantee certain quality, utilize immediately fixed position of solidified portion owing to finishing the parts of adjustment, thereby can increase substantially the throughput rate of light picker adjustment work.
Claims (10)
1. an optical picker adjuster is characterized in that, comprising:
Be assemblied in the main part of light picker, and possess the first clamp portion of the hook of placing the objection lens portion that at least one object lens is installed and the hook adjusting mechanism that makes above-mentioned hook move or rotate;
The second clamp portion that possesses the sectional fixture that above-mentioned main part is installed;
Generation is from the video camera section of the photographic images of the beam of above-mentioned objection lens portion ejaculation;
Come the above-mentioned hook adjusting mechanism of FEEDBACK CONTROL according to the data of above-mentioned photographic images being carried out visual processes, thereby automatically adjust above-mentioned objection lens portion with respect to the position of aforementioned body section and the control part of deflection; And
Arrange in described video camera section and to adjust the district, a side or opposite side in described adjustment district arrange solidified portion, and described solidified portion is cured the optical pickup apparatus that engages object lens.
2. optical picker adjuster according to claim 1 is characterized in that,
Above-mentioned video camera section's generation low range photographic images and the multiplying power high magnification photographic images higher than this low range photographic images,
Above-mentioned control part is found out behind the beam of above-mentioned objection lens portion ejaculation by the visual processes of above-mentioned low range photographic images, one in above-mentioned low range photographic images or the above-mentioned high magnification photographic images is carried out visual processes and adjusts the position of above-mentioned objection lens portion, above-mentioned high magnification photographic images is carried out visual processes and adjust focusing or the deflection of above-mentioned objection lens portion.
3. optical picker adjuster according to claim 1 is characterized in that,
The above-mentioned hook adjusting mechanism of above-mentioned control part FEEDBACK CONTROL so that the beam image of above-mentioned photographic images is aligned to the center of above-mentioned photographic images, thereby is adjusted the position of above-mentioned objection lens portion.
4. optical picker adjuster according to claim 1 is characterized in that,
The above-mentioned hook adjusting mechanism of above-mentioned control part FEEDBACK CONTROL so that above-mentioned photographic images is divided into behind a plurality of focusing inspection area the area that respectively focuses on the inspection area of above-mentioned beam image is mutually the same, thereby is adjusted focusing or the deflection of above-mentioned objection lens portion.
5. optical picker adjuster according to claim 1 is characterized in that,
First module and the second unit possess above-mentioned the first clamp portion and above-mentioned the second clamp portion are set respectively, above-mentioned first module and the above-mentioned second unit above-mentioned adjustment district of alternately coming in and going out.
6. optical picker adjuster according to claim 5 is characterized in that,
Above-mentioned first module solidified portion to an above-mentioned side after above-mentioned adjustment district finishes the position of above-mentioned objection lens portion and deflection adjustment moves,
Above-mentioned second unit moves to above-mentioned adjustment district after an above-mentioned side solidified portion moves in above-mentioned first module.
7. optical picker adjuster according to claim 1 is characterized in that,
Above-mentioned solidified portion is arranged to can lifting,
Aforementioned body section and above-mentioned objection lens portion were discharged/are thrown in above-mentioned the first clamp portion and above-mentioned the second clamp portion respectively when above-mentioned solidified portion rose,
The above-mentioned objection lens portion that has engaged solidified when above-mentioned solidified portion descended.
8. optical picker adjuster according to claim 1 is characterized in that,
Above-mentioned the first clamp portion and above-mentioned the second a clamp portion district from above-mentioned adjustment district, bonding land, curing area and discharge/input district is transferred to another district,
Above-mentioned adjustment district adjusts position and the deflection of above-mentioned objection lens portion,
Above-mentioned bonding land makes the above-mentioned objection lens portion of finishing above-mentioned adjustment be bonded on aforementioned body section,
Above-mentioned curing area disposes the above-mentioned solidified portion that the light picker of finishing above-mentioned joint is cured,
Above-mentioned discharge/input district discharges the light picker of having finished above-mentioned curing, and other main part and objection lens portion are thrown in to above-mentioned the first clamp portion and above-mentioned the second clamp portion.
9. a light picker method of adjustment is characterized in that, repeatedly carries out successively following steps:
Throw in step, the main part of light picker is installed on the sectional fixture, and the objection lens portion of above-mentioned light picker is placed on the hook, and at aforementioned body section stube cable or probe;
Set-up procedure, the photographic images of the beam of above-mentioned objection lens portion has been passed through in generation, above-mentioned photographic images is carried out visual processes, and the hook adjusting mechanism that comes FEEDBACK CONTROL to make above-mentioned hook move or rotate according to the data of above-mentioned visual processes, thereby automatically adjust above-mentioned objection lens portion with respect to position and the deflection of aforementioned body section;
Engagement step makes the above-mentioned above-mentioned objection lens portion of having finished adjustment be bonded on aforementioned body section;
Curing schedule is cured the light picker that engages above-mentioned objection lens portion and aforementioned body section; And
Discharge step, discharge the above-mentioned light picker of having finished above-mentioned curing.
10. a light picker method of adjustment is characterized in that,
With being installed, the sectional fixture of the main part of light picker, the hook and possessing that will place the more than one object lens of installation and be assemblied in the objection lens portion of aforementioned body section make the first module of the hook adjusting mechanism that above-mentioned hook moves or rotate and a side and the opposite side that second unit is configured in respectively video camera section
In the position of the above-mentioned objection lens portion that carries out above-mentioned first module and during the engagement step of deflection set-up procedure, above-mentioned objection lens portion,
Carry out simultaneously the curing schedule of the discharge of the above-mentioned objection lens portion of above-mentioned second unit/input step, above-mentioned objection lens portion.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
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| KR1020090050533A KR100940955B1 (en) | 2009-06-08 | 2009-06-08 | Automatic adjusting device for objective lens and automatic adjusting method of the same |
| KR1020090050568A KR100949928B1 (en) | 2009-06-08 | 2009-06-08 | Adjusting device and adjusting method for optical pick up |
| KR10-2009-0050568 | 2009-06-08 | ||
| KR10-2009-0050533 | 2009-06-08 |
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| CN101908348A CN101908348A (en) | 2010-12-08 |
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| CN113777724A (en) * | 2021-09-15 | 2021-12-10 | 中南大学 | Automatic coupling packaging method for collimating type micro-lens |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1253587A2 (en) * | 2001-04-24 | 2002-10-30 | Kabushiki Kaisha Toshiba | Optical disk apparatus and optical disk processing method |
| CN1538412A (en) * | 2003-03-07 | 2004-10-20 | ���ǵ�����ʽ���� | Front photoelectric detector, optical pick-up, and optical recording and/or playing equipment |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1253587A2 (en) * | 2001-04-24 | 2002-10-30 | Kabushiki Kaisha Toshiba | Optical disk apparatus and optical disk processing method |
| CN1538412A (en) * | 2003-03-07 | 2004-10-20 | ���ǵ�����ʽ���� | Front photoelectric detector, optical pick-up, and optical recording and/or playing equipment |
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