KR101694379B1 - Apparatus and Method for automatic sorting of optical lens - Google Patents

Abstract

An optical lens automatic sorting apparatus and its optical lens automatic sorting method are disclosed. The optical lens automatic sorting apparatus according to an aspect of the present invention picks up a plurality of lenses 1 whose performance tests are stored in the first lens tray 60 and then collects the plurality of lenses 1 on the second lens tray 70 A first pick-up section (40) A second pickup unit 50 including a plurality of pickup modules 51 for individually transferring a plurality of lenses housed in the second lens tray 70 to a third lens tray 80 classified into classes; A first transfer unit 10 for moving the first pickup unit 40 and the second pickup unit 50 in a first axial direction, a second transfer unit 20 for moving the first pickup unit 40 and the second pickup unit 50 in a second axial direction, And the lens performance inspection data to check the arrangement information of each lens stored in the first or the second lens trays (60, 70), and to sequentially transmit the plurality of lenses by class, And a control unit (30) for controlling the control unit (51).

Description

Technical Field [0001] The present invention relates to an optical lens automatic sorting apparatus and an optical sorting method thereof,

The present invention relates to an optical lens automatic sorting apparatus and a method for automatically classifying an optical lens thereof, and more particularly, to an optical lens automatic sorting apparatus and a method thereof, The present invention relates to an automatic lens sorting apparatus for an optical lens and an automatic sorting method of the same.

Currently, portable terminals such as mobile phones and PDAs are being used not only for simple telephone functions but also for multi-convergence such as music, movies, TV, games, etc. With the development of the technology, The module is the most representative.

Generally, a camera module means a module mounted on a small portable device such as a cellular phone or a PDA, and is applied to various IT devices. Recently, a camera module Has been gradually increasing in recent years.

These camera modules are changing from the existing 300,000 pixels to more than 8 million high-resolution centers, and various additional functions such as auto focusing (AF) and optical zoom are being implemented.

The camera module is manufactured by using an image sensor such as a CCD or a CMOS as a main component. The camera module condenses an image of the object through the image sensor and is stored as data on a memory in the device. And is displayed as an image through a display medium such as a monitor.

The camera module is usually photographed by an image sensor chip which converts a light from an object incident through the lens into an electric signal after installing a plurality of lenses in a lens barrel.

The lens barrel and the lens constituting the conventional small-sized camera module are manufactured as an injection molded product for reducing the manufacturing cost and mass-production, and the lens barrel and the lens manufactured as described above are assembled through a separate assembling process to be modularized.

Meanwhile, as automation of the lens assembling process has progressed, studies for the performance inspection of the lens and the automation of the process of classifying the lens have been actively conducted. However, according to the actual performance test result, It is not present.

(0001) Korean Patent Publication No. 10-1416860 (0002) Korean Patent Registration No. 10-1332786

SUMMARY OF THE INVENTION In order to solve the problems of the prior art described above, the present invention has been made to solve the above-mentioned problems of the prior art, and it is an object of the present invention to provide an optical lens automatic And a method for automatically classifying the optical lens.

The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided an automatic lens sorting apparatus for an optical lens, comprising: a plurality of lenses (1) To a second lens tray (70) which is positioned at a predetermined position; A second pickup unit 50 including a plurality of pickup modules 51 for individually transferring a plurality of lenses housed in the second lens tray 70 to a third lens tray 80 classified into classes; A first transfer unit 10 for moving the first pickup unit 40 and the second pickup unit 50 in a first axial direction, a second transfer unit 20 for moving the first pickup unit 40 and the second pickup unit 50 in a second axial direction, And the lens performance inspection data to check the arrangement information of each lens stored in the first or the second lens trays (60, 70), and to sequentially transmit the plurality of lenses by class, And a control unit (30) for controlling the control unit (51).

The first pickup unit 40 is provided with a number of holes corresponding to the number of the plurality of lenses 1 so that all of the plurality of lenses 1 stored in the first lens tray 60 can be transferred at a time A pick-up plate 41 having a plurality of teeth; And an air tube for supplying / sucking air into the pickup plate 41. The pickup plate 41 generates a suction force in the holes by using air supplied / sucked from the air tube, And the entire lens is vacuum-absorbed at one time.

The control unit 30 may be configured to receive the lens pickup status information of the plurality of pickup modules 51 and the arrangement information of the plurality of lenses stored in the second lens tray 70, The maximum number and the position of each lens are calculated.

The control unit 30 moves the second pickup unit 50 so that the pickup module that does not pick up the lens can be located at the calculated position of each lens and controls the pick-up module 51 Is vertically lowered to pick up and pick up each lens.

The controller 30 searches for the third lens tray 80 of the same grade as the lens picked up by the plurality of pickup modules 51 and determines the arrangement of the lenses housed in the third lens tray 80 Based on the information, controls the plurality of pickup modules 51 to flick the picked-up lens onto the searched third lens tray 80.

The control unit 30 may be configured to receive the lens pickup status information of the plurality of the pickup modules 51 and the plurality of lenses stored in the third lens tray 80, The maximum number of lenses and the position at which each lens is to beplaced.

According to another aspect of the present invention, there is provided an automatic lens sorting method for an optical lens, comprising the steps of: (a) acquiring placement information of each lens stored in the first or second lens trays by loading the lens performance inspection data; ; (b) obtaining lens pickup state information of the plurality of pickup modules; (c) calculating the maximum number of lenses of the same grade and the position of each lens that can be picked up at one time using the lens pickup state information of the plurality of pickup modules and the arrangement information of the plurality of lenses stored in the second lens tray step; And (d) moving the second pick-up unit so that the pick-up module without picking up the lens is located at the position of each calculated lens, vertically lowering the pick-up module disposed at the position of each of the lenses, To be picked up.

Updating placement information of a plurality of lenses accommodated in the second lens tray after the lens is picked up by the pick-up module in the step (d); And repeating the steps (c) and (d) recursively until all of the plurality of pickup modules have picked up the lens or until there is no lens of the same class housed in the second lens tray .

According to another aspect of the present invention, there is provided an optical lens automatic sorting method comprising the steps of: (a) searching for a third lens tray of the same grade as a lens picked up by the plurality of pickup modules; (b) acquiring arrangement information of the lens housed in the searched third lens tray; (c) a maximum number of lenses of the same grade that can be flashed at a time by using the lens pickup state information of the plurality of pickup modules and the arrangement information of the plurality of lenses housed in the third lens tray, Calculating a position to be moved; And (d) moving the second pick-up unit so that the calculated pick-up module that picks up the lens at a position where each lens is to be placed is moved, and the pick-up module, And controlling each lens to be flashed on the third lens trays.

As described above, according to the present invention, when sequentially classifying optical lenses that have undergone the performance check by grades, the maximum number of lenses that can be transferred at one time in the process cycle of pick-up / transfer / Efficiency and time can be shortened.

1 is a block diagram of an automatic lens sorting apparatus according to an embodiment of the present invention;
2 is a perspective view of an optical lens automatic sorting apparatus according to an embodiment of the present invention.
3 is a plan view of an automatic lens sorting apparatus according to an embodiment of the present invention;
Fig. 4 is a bottom view of the recessed portion showing the bottom surface of the first pickup portion in the configuration of the present invention. Fig.
5 is a flowchart for explaining an operation of picking up an optical lens in an optical lens automatic classification method according to an embodiment of the present invention.
Fig. 6 is an operational example for explaining an operation of picking up the optical lens of Fig. 5; Fig.
7 is a flowchart for explaining an operation of flipping an optical lens in an optical lens automatic classification method according to an embodiment of the present invention.
Fig. 8 is an operational example for explaining an operation of flipping the optical lens of Fig. 7; Fig.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. And is provided to fully convey the scope of the invention to those skilled in the art, and the present invention is defined by the claims. It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. It is noted that " comprises, " or "comprising," as used herein, means the presence or absence of one or more other components, steps, operations, and / Do not exclude the addition.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, like reference numerals refer to like elements throughout. In the drawings, like reference numerals are used to denote like elements, and in the description of the present invention, In the following description, a detailed description of the present invention will be omitted.

2 is a perspective view of an optical lens automatic sorting apparatus according to an embodiment of the present invention, and FIG. 3 is a perspective view of an optical lens automatic sorting apparatus according to an embodiment of the present invention. Fig. 4 is a bottom view of the recessed portion showing the bottom surface of the first pick-up portion of the structure of the present invention. Fig.

1 to 4, an optical lens automatic sorting apparatus according to an embodiment of the present invention includes a first conveying unit 10, a second conveying unit 20, a control unit 30, a first pick-up unit 40, 2 pickup section 50, a first lens tray 60, a second lens tray 70, and a third lens tray 80. [

The first transfer unit 10 moves the second transfer unit 20, the first and second pickup units 40 and 50 in the first axial direction. The first transfer unit 10 includes a driving unit (not shown) for moving the second transfer unit 20, the first and second pickup units 40 and 50 in the first axial direction, And a transfer frame 11 for transferring the second transfer unit 20 and the first and second pickup units 40 and 50 which are moved in the first axis direction.

The transfer frame 11 and the second transfer unit 20 are coupled by a rail and the second transfer unit 20 is supported by the transfer frame 11 to move in a first axial direction.

The second transfer unit 20 moves the first and second pickup units 40 and 50 in the second axial direction. The second transfer unit 20 includes a driving unit (not shown) for moving the first and second pickup units 40 and 50 in the second axial direction, And a transfer frame 21 for supporting the movement of the first and second pick-up parts 40,

The transfer frame 21 and the coupling plate 23 are coupled by rails and the coupling plate 23 is supported by the transfer frame 21 to move in the second axial direction. The first pickup unit 40 is fixedly coupled to one surface of the coupling plate 23 with reference to the transfer frame 21 and moves in the second axis direction integrally with the coupling plate 23.

The second pickup unit 50 is fixedly coupled to the other surface of the coupling plate 23 with reference to the transfer frame 21 and moves in the second axis direction integrally with the coupling plate 23.

As described above, the coupling plate 23, the first and second pickup parts 40 and 50 are integrally movable in the second axial direction, and the coupling plate 23, the first and second pick- (40, 50) in the second axial direction is supported by the transfer frame (21).

The first pick-up unit 40 picks up the plurality of lenses 1 whose performance has been checked in the first lens tray 60 and transfers the picked-up images to the second lens tray 70, which becomes the lens classification reference position.

4, the first pick-up unit 40 is provided with a plurality of lenses 1, so that the plurality of lenses 1 accommodated in the first lens tray 60 can be transferred at a time, A pickup plate 41 having a corresponding number of holes, and an air tube for supplying / sucking air into the pickup plate 41. At this time, the pickup plate 41 generates a suction force in the holes by using the air supplied / sucked from the air tube, and vacuum-absorbs all of the plurality of lenses at once.

The first and second transfer units 10 and 20 are operated to move the first pickup unit 40 in the first axis direction or the second axis direction, Are arranged on the first lens tray (60). At this time, a plurality of holes formed in the pick-up plate 41 are aligned and arranged so as to be positioned in a plurality of lenses 1 housed in the first lens plate 60.

Thereafter, the first pick-up portion 40 is vertically lowered, and all of the plurality of lenses 1 are vacuum-absorbed at one time by the suction force generated in the holes.

In addition, the first pickup unit 40 may be moved in the first axis direction or the second axis direction according to the operation of the first and second transfer units 10 and 20 in a state where all the plurality of lenses 1 are vacuum- And is arranged and arranged on the second lens tray 70 which becomes the lens classification reference position.

Thereafter, the first pick-up unit 40 is vertically lowered and all of the plurality of vacuum-adsorbed lenses 1 are lowered to the second lens tray 70 at once by using the air supplied / sucked from the air tube .

The second pick-up unit 50 transfers the plurality of lenses stored in the second lens tray 70 to the third lens tray 80 classified into classes.

The second pick-up unit 50 comprises a plurality of pick-up modules 51 for transporting a plurality of lenses individually. For example, as shown in FIG. 2, the module 51 may be composed of ten in total, five in each column, but how to configure the number of the pickup modules depends on the intention of the designer. .

Each of the pickup modules 51 can be operated individually. That is, each of the pickup modules 51 can vertically descend and ascend individually, and accordingly, the number of lenses picked up in the second pickup section 50 is different according to the operation of each pickup module 51 .

The first and second transfer units 10 and 20 are operated to move the second pickup unit 50 in the first axis direction or the second axis direction, Are arranged on the second lens tray (70).

Then, the pick-up modules 51 of the second pick-up unit 50 vertically descend individually, and the lenses are vacuum-adsorbed by the suction force generated by the pick-up modules 51.

The control unit 30 controls the operations of the first and second transfer units 10 and 20, and the first and second pickup units 40 and 50.

As a result of the performance check, the control unit 30 performs an operation for classifying the graded lenses according to the grades. At this time, the controller 30 acquires the lens pickup state information of the pickup module 51 of the second pickup unit 50, The arrangement information of the plurality of lenses housed in the lens tray 70 is used.

The lenses housed in the first or second lens trays 60 and 70 are those whose performance has been checked by a separate lens performance tester, and the performance test results are output as lens performance test data. For example, the performance of the lens can be classified into an A grade, a B grade, a defect, and the like, and the lens performance inspection data can be classified according to the arrangement of the lenses accommodated in the first or second lens trays 60, The grades can be output in an ordered state.

In this way, the control unit 30 can use the lens pickup state information of the plurality of pickup modules 51 and the arrangement information of the plurality of lenses housed in the second lens tray 70, The maximum number of lenses and the position of each lens are calculated.

For example, it is assumed that the plurality of pickup modules 51 are arranged in two columns, and each of the five pickup modules 51 is composed of ten in total, five each. If all of the five pick-up modules in the first row are in a state of picking up the lens and all of the five pick-up modules in the second row are not picking up the lens, the maximum pick- The number will be five.

However, depending on the arrangement state of the same-class lens housed in the second lens tray 70, the maximum number of the same-class lenses that can be picked up by the five pick-up modules not picking up the above- .

For example, it is assumed that the second lens tray 70 has a rectangular shape with five rows and five rows of lens holding grooves, three lenses of the same grade sequentially arranged in the first row, and lenses of the same grade If not, the maximum number of lenses of the same rating that the five pickup modules can pick up will be three.

In this way, the control unit 30 can not only acquire the lens pickup state information of the plurality of pickup modules, but also the arrangement information of the plurality of lenses housed in the second lens tray 70, The maximum number and the position of each lens are calculated.

  5 and 6, a detailed process of calculating the maximum number of lenses of the same grade that can be picked up at one time and the position of each lens performed by the controller 30 will be described later.

The control unit 30 moves the second pickup unit 50 so that the pickup module that does not pick up the lens can be located at the calculated position of each lens, 51 are vertically lowered to pick up and pick up each lens.

The controller 30 searches for a third lens tray 80 of the same grade as the lens picked up by the plurality of pickup modules 51 and determines whether the lens held in the third lens tray 80 Controls the plurality of pickup modules 51 to flick the picked-up lens on the searched third lens tray 80 based on the placement information.

At this time, the control unit 30 may use the same lens pick-up status information that can be flashed at one time by using the lens pickup state information of the plurality of pickup modules 51 and the arrangement information of the plurality of lenses housed in the third lens tray 80 Calculate the maximum number of lenses in the class and the position where each lens is to be flaced.

A concrete procedure for calculating the maximum number of the same-class lenses that can be simultaneously performed by the controller 30 and the position at which each lens is to beplaced will be described later with reference to FIGS. 7 and 8. FIG.

Hereinafter, a method for automatically classifying an optical lens according to the present invention, which corresponds to the operation of the automatic lens classifying apparatus according to the present invention, will be described step by step with reference to FIG. 5 to FIG.

Optical lens pickup process

5 is a flowchart for explaining an operation of picking up an optical lens in the method of automatically classifying an optical lens according to an embodiment of the present invention. Fig. 6 is an example of an operation for explaining an operation of picking up the optical lens of Fig. 5 to be.

Referring to FIG. 5 and FIG. 6 together with FIG. 1, the controller 30 loads the lens performance test data output as a result of the lens performance test to acquire the placement information of each lens stored in the first or second lens trays (S510).

 For example, the performance of the lens may be classified into an A grade, a B grade, a defect, and the like. The lens performance inspection data may be classified into a state in which the corresponding grades of the respective lenses are arranged in accordance with the arrangement of the lenses housed in the first or second lens trays Lt; / RTI >

Then, the control unit 30 acquires the lens pickup state information of the plurality of pickup modules (S520)

The lens pickup state information includes information as to whether or not a plurality of pickup modules are currently picking up the lens, and the lens pickup state is separately stored for each pickup module. For example, the lens pickup state information may be converted into digital information and stored, and may be stored as '1' when the lens is picked up and '0' when the lens is not picked up .

The control unit 30 uses the lens pickup state information of the plurality of pickup modules and the arrangement information of the plurality of lenses housed in the second lens tray to determine the maximum number of lenses of the same class and the position of each lens (S530).

An example of calculating the maximum number of lenses of the same grade and the position of each lens that can be picked up at a time by the control unit 30 will be described with reference to FIG.

As shown in FIG. 6, it is assumed that the pick-up module is arranged in two columns, and five columns are arranged in total for each column. Among the five pickup modules of the first column (a), the first and fifth pickup modules have picked up the A-grade lens, and the remaining pickup modules have not picked up the lens. In addition, among the five pickup modules of the second row (b), the second, third, and fourth pickup modules have picked up the A-class lens, and the remaining pickup modules have not picked up the lens. Further, the second lens tray has a rectangular shape having a lens receiving groove formed of 5 rows and 5 columns.

(1, 1), (1, 3), (1, 5), (3, 3) positions of the second lens trays in the case of CASE I, , (2, 3), (2,4), (3,1), (3,5), and lenses are not arranged in the remaining positions.

In this case, on the basis of the lens pickup state information of the pickup module and the lens arrangement information stored in the second lens tray, the control unit 30 determines whether or not the five pickup modules, which are not picking up the lens, The number of lenses is calculated as five, and the position of the corresponding lens will be calculated as (2,2), (2,3), (2,4), (3,1), and (3,5).

(1, 1), (1, 3), (1, 5) and (3, 1) positions of the second lens trays in the case of CASE II, , (2, 3), (2, 4), (3, 2), and (3, 5)

In this case, on the basis of the lens pickup state information of the pickup module and the lens arrangement information stored in the second lens tray, the control unit 30 determines whether or not the five pickup modules, which are not picking up the lens, The number of lenses is calculated as four, and the position of the corresponding lens will be calculated as (2,2), (2,3), (2,4), (3,5).

5, the controller 30 determines the position of the second pick-up unit, places the pick-up module that has not picked up the lens of the second pick-up unit at the position of the pickup-capable lens calculated in step S530 (Step S540).

If it is determined in step S530 that the pickup module that has not picked up the lens is not disposed at the position of the pick-up lens, the control unit 30 controls the first and second transfer units 10 and 20 to pick up the lens The second pick-up unit 50 is moved so that the pick-up module can be positioned at each calculated lens position (S545).

Accordingly, all or a part of the pick-up module that has not picked up the lens is aligned with the calculated lens pick-up position, and the control unit 30 vertically moves the pick-up module disposed at the position of each lens so as to pick up and pick up each lens (S550).

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After the lens is picked up by the pickup module in step S550, the controller 30 updates the arrangement information of the plurality of lenses stored in the second lens tray, and when all of the plurality of pickup modules pick up the lens (S560) whether or not the lens of the same grade stored in the second lens tray remains.

If it is determined that all of the plurality of pickup modules have picked up the lens, or if there is no lens of the same grade housed in the second lens tray, the process goes to the lens flipping step.

Alternatively, if all of the plurality of pickup modules are not in the state of picking up the lens, and the lens of the same grade housed in the second lens tray remains, steps S510 to S550 are repeated recursively.

Optical lens Playing  process

FIG. 7 is a flowchart for explaining an operation of flipping an optical lens in the optical lens automatic classification method according to the embodiment of the present invention, and FIG. 8 is a flowchart for explaining the operation of flipping the optical lens of FIG. Fig.

Referring to FIGS. 7 and 8 together with FIG. 1, the controller 30 searches for a third lens tray of the same grade as a lens picked up by the plurality of pickup modules (S710).

According to the embodiment of the present invention as described above, the lenses are sequentially classified according to their grades. In this case, lenses having various grades are mixed and arranged in the second lens tray, and the pickup module is provided with grades After picking up, it is flashed on the third lens tray corresponding to the corresponding grade. Therefore, the third lens trays are classified and matched to the grades of the lenses arranged in the second lens trays.

If there is no space left for disposing the lens of the corresponding grade in the searched third lens tray, the controller 30 searches the third lens tray matching the class of the picked-up lens.

If there is no third lens tray matched to the level of the picked-up lens as a result of the search or re-search, the control unit 30 generates a warning to call attention of the operator.

Then, the control unit 30 obtains the arrangement information of the lens housed in the searched third lens tray (S720).

Thereafter, the controller 30 calculates the maximum number of lenses of the same grade and the number of lenses that can be flashed at one time using the lens pickup state information of the plurality of pickup modules and the arrangement information of the plurality of lenses housed in the third lens tray The position at which the lens is to beplaced is calculated (S730).

An example of calculating the maximum number of lenses of the same class and the positions where the lenses are arranged, which the controller 30 can flashed at one time, will be described with reference to FIG.

As shown in FIG. 8, it is assumed that the pick-up module is arranged in two columns, and five columns are arranged in total, each having 10 columns. Among the five pickup modules of the first column (a), the first and fifth pickup modules have picked up the A-grade lens, and the remaining pickup modules have not picked up the lens. In addition, among the five pickup modules of the second row (b), the second, third, and fourth pickup modules have picked up the A-class lens, and the remaining pickup modules have not picked up the lens. Further, the third lens tray has a rectangular shape having a lens receiving groove formed of 5 rows and 5 columns.

(1, 2), (1,3), (1,4), (2,1), (2,5), (3,1), ), (3,3), (4,3), (4,4), (4,5), (5,1), (5,2), (5,3) The lenses of the A grade are arranged at the positions of the lenses 5, 5, and the lenses are not arranged at the remaining positions.

In this case, based on the lens pickup state information of the pickup module and the lens arrangement information stored in the third lens tray, the controller 30 determines whether the five pick-up modules picking up the lens are A-rated The number of lenses is calculated to be 5, and the position of the third lens tray to which the corresponding lens is to beplaced is (1,1), (1,5), (2,2), (2,3), ).

(1, 1), (1,5), (5,1), (5,2), (5,3), (5,4), ) Position is not provided with a lens, and all the A-grade lenses are arranged at the remaining positions.

In this case, based on the lens pickup state information of the pickup module and the lens arrangement information stored in the third lens tray, the controller 30 determines whether the five pick-up modules picking up the lens are A-rated The number of lenses is calculated to be three and the position of the third lens tray to which the lens is to be flared is (5,1), (5,2), (5,3), or (5,2) 3), (5,4), or (5,3), (5,4), (5,5).

7, the controller 30 moves the second pick-up unit so that the pick-up module picking up the lens at the position at which the calculated lens is to be positioned can be positioned, Up module disposed at a position to be raced is vertically lowered to control each lens to be flashed on the third lens tray (S740).

Then, the controller 30 determines whether there is a lens left in the pick-up module (S750).

If it is determined that all of the plurality of pickup modules are not picking up the lens, the process proceeds to the lens pickup step again.

Alternatively, if at least some of the plurality of pickup modules are picking up the lens, steps S710 to S740 are repeated recursively.

It will be understood by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the appended claims rather than the detailed description, and all changes or modifications derived from the scope of the claims and their equivalents should be construed as being included within the scope of the present invention.

Claims (9)

delete delete delete delete delete delete A first pick-up unit for picking up a plurality of lenses having undergone the performance test stored in the first lens tray and transferring the picked-up lens to a second lens tray serving as a lens classification reference position;
A second pickup unit including a plurality of pickup modules for individually feeding a plurality of lenses accommodated in the second lens trays to a third lens tray classified into classes;
A first conveying unit that moves the first pick-up unit and the second pick-up unit in a first axial direction, and a second conveying unit that moves the first pick-up unit and the second pick-up unit in a second axial direction; And
Calculating a maximum number of lenses of the same grade and a position of each lens that can be picked up at a time by using the lens pickup state information of the plurality of pickup modules and the arrangement information of the plurality of lenses housed in the second lens tray, And a control unit configured to determine whether or not all of the pickup module is in a state of picking up the lens and whether or not the same level of lens stored in the second lens tray remains, A method for automatic classification of an optical lens by a lens automatic sorting apparatus,
Wherein,
(a) loading lens performance inspection data output from a lens performance tester as a result of the performance check of the plurality of lenses, and determining, based on the lens performance inspection data, grades of lenses stored in the first lens tray or the second lens tray Obtaining star arrangement information;
(b) information on whether or not the plurality of pick-up modules are picking up the lens, the information about whether or not the pick-up module is divided into the pick-up modules is '1' when the lens is picked up, Acquiring lens pick-up status information of a plurality of pickup modules that can be stored and divided into values of '0';
(c) using the lens pickup state information of the plurality of pick-up modules and the arrangement information of each lens stored in the second lens tray, wherein the condition is that the plurality of pick- Calculating a maximum number of lenses of the same class and a position of each lens that can be picked up at a time by arithmetically operating based on the condition, determining whether all of the plurality of pickup modules are not picking up a lens;
(d) moving the second pickup so that a pickup module not picking up a lens is positioned at each calculated lens position, vertically lowering the pick-up module disposed at the position of each lens, And,
Wherein,
The position of the second pick-up unit is checked between the step (c) and the step (d), and the pick-up module which has not picked up the lens of the second pick- The method further comprising the step of determining whether the optical lens is disposed on the optical lens.
8. The method of claim 7,
(e) updating placement information of the plurality of lenses housed in the second lens tray after the lens is picked up by the pick-up module in the step (d); And
(f) recursively repeating steps (c) and (d) until all of the plurality of pick-up modules have picked up a lens or until there is no lens of the same grade housed in the second lens tray step
Further comprising the steps of:
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