TWI529380B - Optical auxiliary measuring device and measuring method for applying the same - Google Patents

Description

Optical auxiliary measuring device and measuring method using the same

The present invention relates to the measurement of an optical component, and more particularly to an optical auxiliary measurement device and a measurement method using the same.

Referring to Fig. 1, a conventional optical lens 9 is assembled and placed in a tray 8, followed by measurement of optical characteristics. Since the optical lens at the rear end of the lens barrel 91 of the optical lens 9 is generally large, the wall surface of the lens barrel 91 is thin, and the optical lens 9 is placed on the abutting surface 81 of the tray 8 by the rear end of the lens barrel 91. Therefore, the accuracy of the abutment surface 81 of the tray 8 must be high to ensure that the optical axis I is perpendicular to the direction in which the tray 8 extends when the optical lens 9 is placed.

Referring to Fig. 2, another type of tray 8 is a combination of a plastic tray 82 and a glass 83. The glass 83 can transmit light and the surface of the glass 83 has a high flatness.

In summary, since the optical lens 9 and the tray 8 are respectively placed in the tray 8 and the measuring platform (not shown) by their own weight, it is easy to cause measurement error due to the unstable positioning position. The accuracy of the measurement is not high.

Accordingly, it is a first object of the present invention to provide an optically assisted measuring device having a high accuracy of measurement.

Moreover, the second object of the present invention is to provide an application The measuring method of the device.

Therefore, the optical auxiliary measuring device of the present invention assists optical measurement of at least one object to be tested, and the optical measuring auxiliary device comprises: a suction unit, and a carrying unit.

The suction unit is configured to pick up the object to be tested, and includes a body, at least one measuring hole disposed through the body, and a gas flow path disposed in the body. The measuring hole has a first port and a second port formed on the surface of the body and oppositely disposed. The gas flow channel has at least one suction port formed on the surface of the body adjacent to the second port, and at least one air suction port formed on the surface of the body. The body surface forms a contact surface adjacent to the suction port.

The carrying unit includes a substrate and at least one placement groove formed by recessing the top surface of the substrate, and the placement groove can be used for placing the object to be tested.

In addition, the optical measuring method of the present invention is performed by using the optical measuring auxiliary device as described above, and the optical measuring method comprises the following steps: a preparing step: placing the object to be tested in a placing slot of the carrying unit; a suction step: after the contact surface of the suction unit is close to the object to be tested, the gas flow path is evacuated through the air suction interface, so that the suction port generates suction force, thereby sucking the object to be tested; Step: moving the suction unit together with the sample to be tested into a measuring device, and the measuring device optically measures the object to be tested adsorbed on the contact surface through the measuring hole of the suction unit; Disengagement step: after the measurement step, the suction unit And moving the object to be tested to the top of the carrying unit, and performing alignment between the picking unit and the carrying unit, so that the object to be tested sucked by the picking unit is aligned with the placing slot of the carrying unit, and then The suction unit moves the sample to be tested into the placement slot of the carrying unit, and finally stops pumping the gas flow path, so that the object to be tested is separated from the suction unit.

The effect of the present invention is that the object to be tested is actively and strongly absorbed by the suction unit, and the object to be tested is stably adsorbed during the optical measurement to the measuring device, so that the measurement stability is better. Good and repeat measurement accuracy is high.

1‧‧‧ suction unit

11‧‧‧Ontology

111‧‧‧Contact surface

112‧‧‧Extended section

113‧‧‧ Included paragraph

12‧‧‧ Measuring hole

121‧‧‧First port

122‧‧‧Second port

13‧‧‧ gas flow path

131‧‧‧ suction port

132‧‧‧Exhaust interface

14‧‧‧ valve hole

15‧‧‧ gas valve parts

16‧‧‧Controls

17‧‧‧Soft ring

2‧‧‧bearing unit

21‧‧‧Substrate

22‧‧‧Place slot

23‧‧‧Top block

7‧‧‧Measurement equipment

90‧‧‧Test object

901‧‧‧ front end

902‧‧‧ back end

X‧‧‧ first direction

Y‧‧‧second direction

Other features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments of the accompanying drawings, wherein: FIG. 1 is a schematic diagram illustrating a conventional tray for optical lens accommodation for optical measurement; 2 is a schematic view showing another conventional tray for optical lens accommodation for optical measurement; FIG. 3 is a perspective view of a first preferred embodiment of the optical auxiliary measurement device of the present invention; FIG. 4 is a partial bottom view, FIG. 5 is a cross-sectional view showing the suction unit of the first preferred embodiment for sucking two objects to be tested in a carrying unit. FIG. 6 is a schematic diagram showing the suction unit of the first preferred embodiment sucking the waiting object to a measuring device for optical measurement; Figure 7 is a perspective view of a second preferred embodiment of the optical assistant measuring device of the present invention; Figure 8 is a cross-sectional view showing the second preferred embodiment of a pick-up unit for picking up two objects to be tested in a carrying unit FIG. 9 is a schematic diagram showing the suction unit of the second preferred embodiment sucking the waiting object to a measuring device for optical measurement; FIG. 10 is a schematic view showing the second preferred embodiment transmitting Pushing a gas valve member to remove the unacceptable test object from the suction unit; FIG. 11 is a schematic view showing that the sample to be tested by the suction unit of the second preferred embodiment is played back to the load bearing unit Figure 12 is a schematic view showing another aspect of the suction unit of the second preferred embodiment; Figure 13 is a partial cross-sectional view showing a third preferred embodiment of the optical auxiliary measuring device of the present invention; 14 is a partial bottom view showing a configuration of a suction port of a combination of a plurality of circular openings in a fourth preferred embodiment of the optical assistant measuring device of the present invention; and FIG. 15 is a schematic view illustrating the present invention Optical aid A fifth preferred embodiment of a suction device a suction unit for optical measurement analytes.

Before the present invention is described in detail, it is noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to FIG. 3, FIG. 4 and FIG. 5, the optical measuring auxiliary device of the invention The first preferred embodiment is configured to perform optical measurement on a plurality of objects to be tested 90. In the embodiment, the waiting object 90 is an optical lens, and the optical measuring auxiliary device comprises: a suction unit. 1, and a carrying unit 2.

The suction unit 1 is configured to suck the waiting object 90, and includes a body 11 , and a plurality of the plurality of first directions X and a second direction Y perpendicular to the first direction X are respectively spaced apart from each other and disposed on the body 11 . The hole 12 and a gas flow path 13 disposed in the body 11. Each of the measuring holes 12 has a first port 121 and a second port 122 formed on the surface of the body 11 and oppositely disposed. The gas flow channel 13 has a plurality of suction ports 131 formed on the surface of the body 11 and adjacent to the second ports 122, and two are formed on the surface of the body 11 and externally connected to a pumping pump (not shown). Air interface 132. A contact surface 111 is formed on the surface of the body 11 adjacent to the suction ports 131. The inner peripheral surface of the body 11 corresponding to each of the measuring holes 12 has an outer protruding portion 112 that is connected to the first port 121, and an end of the outer protruding portion 112 that is away from the first port 121 extends to the second port 122. And in the receiving section 113 of the front end portion 901 of the object to be tested 90, each of the outer expansion segments 112 is gradually extended and extended by the second port 122 toward the first port 121. In this embodiment, the external expansion Segment 112 is a conical surface for measurement while taking a larger measurement viewing angle. The suction ports 131 are respectively annular openings respectively surrounding the second port 122 of the measuring hole 12 (see FIG. 4). Specifically, the optical lens of the object to be tested 90 can be divided into a state in which the front end protrudes from the front end portion 901, and a state in which the front end is flat without the front end portion 901, and when the object to be tested 90 has the front end portion 901 In this case, if the body 11 has the receiving section 113, the position of the object to be tested 90 can be more accurately positioned, which helps The accuracy of the measurement. Therefore, the embodiment is described with the aspect of the receiving section 113. Of course, the body 11 may not be provided with the receiving section 113 (see FIG. 13), and should not be disclosed in the preferred embodiment. The sample is limited.

The carrying unit 2 includes a substrate 21 and a plurality of placement slots 22 formed by recessing the top surface of the substrate 21. The placement slots 22 are spaced apart from each other along the first direction X and the second direction Y, and the relative positions between the placement slots 22 correspond to the relative positions between the equal measurement apertures 12. The placement slots 22 can be used to place the waiting object 90, respectively.

The method for optically measuring the waiting object 90 by using the optical auxiliary measuring device comprises the following steps: a preparation step: referring to FIG. 3 and FIG. 5, the waiting object 90 is placed on the carrying unit 2 respectively. In the slot 22, a suction step is performed: after the equal measuring holes 12 of the suction unit 1 are respectively aligned with the placing grooves 22, the suction unit 1 is moved downward so that the contact surfaces 111 are respectively close to the waiting object 90, At the same time, the front end portion 901 of the waiting object 90 is respectively received in the measuring hole 12, corresponding to the receiving portion 113, and then the air pumping pump is opened through the air suction port 132 for the gas flow path. 13 is pumping, so that the suction ports 131 generate suction, thereby sucking the waiting object 90 and thereby adsorbing the object to be tested 90 on the contact surface 111; a measuring step: refer to FIG. 1 is moved into a measuring device 7 together with the waiting sample. The measuring device 7 sequentially optically measures the waiting object 90 respectively adsorbed on the contact faces 111 through the measuring holes 12 of the suction unit 1 . Measurement results directly in the array The method is displayed on the screen, and the measured object to be tested 90 is marked as a green or circle mark, and the untested object to be tested 90 is marked as a red or cross mark to facilitate operator identification; and a separation step Referring to FIG. 3 and FIG. 5, after the measuring step, the suction unit 1 is moved to the top of the carrying unit 2 together with the sucking object 90, and between the picking unit 1 and the carrying unit 2 is performed. The alignment of the object to be tested 90 is aligned with the placement slot 22 of the carrier unit 2, and then the suction unit 1 is moved down to place the sampled object 90 to be placed on the carrier unit 2 In the tank 22, the pumping pump is finally closed to stop pumping the gas flow passage 13 so that the waiting object 90 is disengaged from the suction unit 1.

It can be seen from the above description that the optical measurement auxiliary device of the present invention actively and strongly absorbs the object to be tested 90 by the suction unit 1 , and the object to be tested 90 is stabilized during the optical measurement process by moving to the measuring device 7 . The ground is adsorbed, so that the measurement stability is better and the repeat measurement accuracy is high.

Referring to FIG. 7 and FIG. 8 , a second preferred embodiment of the optical measurement aiding device of the present invention is substantially the same as the first preferred embodiment, except that the suction unit 1 further includes a plurality of separate through settings. The valve body 14 adjacent to the equal measuring hole 12 and communicating with the gas passage 13 , and a plurality of air valves respectively disposed in the valve hole 14 movably between a first position and a second position When the gas valve member 15 is in the first position, the gas valve member 15 is in a non-connected state between the corresponding suction port 131 and the air suction ports 132, and when the gas valve members 15 are located at the first Two position At this time, the gas valve member 15 brings the suction port 131 into communication with the air suction ports 132.

The carrying unit 2 includes a substrate 21, a plurality of placement slots 22 formed by recessing the top surface of the substrate 21, and a plurality of top blocks 23 protruding from the top surface of the substrate 21 and adjacent to the placement slots 22. The placement slots 22 can be used to place the waiting object 90, respectively. The placement slots 22 are spaced apart from each other along the first direction X and the second direction Y, and the relative positions between the placement slots 22 correspond to the relative positions between the equal measurement apertures 12.

When the suction unit 1 is stacked on the load-bearing unit 2 and the suction ports 131 correspond to the objects to be tested 90 in the placement slots 22, the top blocks 23 of the load-bearing unit 2 respectively protrude into the valve holes. 14 pushing the valve members 15 to move to the second position, so that the suction ports 131 and the air extraction ports 132 are in a connected state, so as to all absorb the measured objects located in the placement slots 22 90.

The optical measurement method for the waiting object 90 by using the optical auxiliary measuring device comprises the following steps: a preparation step: placing the waiting object 90 in the placement slot 22 of the carrying unit 2; a suction step After the equal measuring holes 12 of the suction unit 1 are respectively aligned with the placing grooves 22, the suction unit 1 is moved downward so that the contact surfaces 111 are respectively close to the waiting object 90, and the waiting object 90 is waiting. The front end portions 901 are respectively received in the measuring holes 12, and the top blocks 23 of the carrying unit 2 respectively protrude into the valve holes 14 to push the gas valve members 15 to the second position, so that the The suction port 131 and the pumping interface 132 are a state of communication, and then opening the pumping pump to evacuate the gas flow passage 13 through the air suction ports 132, thereby causing the suction ports 131 to generate suction force, thereby sucking the waiting object 90; a measuring step Referring to FIG. 9, the suction unit 1 is moved into the measuring device 7 together with the sampled object 90 sucked. The measuring device 7 sequentially optically measures the waiting object 90 respectively adsorbed on the contact surfaces 111 through the measuring hole 12 of the suction unit 1 , and the measurement results are directly displayed on the screen in an array manner. The qualified test object 90 is marked as a green or circle mark, and the test object 90 that is not qualified is marked as a red or cross mark to facilitate operator identification; a sorting step: refer to FIG. 10, in the quantity After the measuring step, according to the measurement result displayed on the screen, the valve member 15 corresponding to the object to be tested 90 whose measurement result is unacceptable is pushed through the valve hole 14 to the first position, so that the corresponding The measurement result is that the suction port 131 of the unqualified object to be tested 90 is in a non-connected state with the pumping ports 132, so that the object to be tested 90 whose measurement result is unqualified is disengaged from the picking unit 1 in advance; Step 11: After the measuring step, the suction unit 1 is moved to the top of the carrying unit 2 together with the sucking object 90, and the pair between the picking unit 1 and the carrying unit 2 is performed. a position such that the object to be tested 90 sucked by the suction unit 1 respectively Aligning the placement slot 22 of the carrying unit 2, and then moving the suction unit 1 to place the sucked object to be tested 90 into the placement slot 22 of the carrying unit 2, at which time the top block 23 of the carrying unit 2 is respectively convex. Extending into the valve holes 14 and pushing the gas valve members 15 to the second position, such that the suction ports 131 and the suction ports 132 are In the connected state, the pumping pump is finally closed to stop pumping the gas flow path 13 so that the waiting object 90 is separated from the suction unit 1.

It should be noted that, referring to FIG. 12, the conduction control of each of the suction ports 131 and the air suction ports 132 is not limited to the conduction control of the gas valve member 15 in the valve hole 14 , and may be electrically connected. The control member 16 of the valve member 15 electrically controls the gas valve members 15 to perform conduction control of the suction ports 131 and the suction ports 132, and is more flexible in controlling the suction and disengagement of the workpiece 90. The gas valve members 15 are respectively an electronically controlled two-way valve member.

Thereby, the second preferred embodiment can also achieve the same advantages and effects as the first preferred embodiment. In addition, the matching of the valve members 15 on the top blocks 23 can increase the convenience in the measurement process, so as to improve the applicability, such as the rapid elimination of the unqualified measurement according to the measurement results. The product to be tested 90, and the measurement of the lower wheel is performed quickly.

Referring to FIG. 13, a third preferred embodiment of the optical measurement aid of the present invention is substantially the same as the first preferred embodiment, except that the suction unit 1 further includes a plurality of surfaces disposed on the surface of the body 11. And surrounding the soft ring body 17 on the inner side of each of the suction ports 131, and the body 11 is not provided with the receiving portion 113. In this embodiment, each of the soft ring bodies 17 is an elastic rubber ring.

Therefore, the third preferred embodiment can also achieve the same advantages and functions as the first preferred embodiment. In addition, each soft ring body 17 can enhance the suction unit 1 and the object to be tested. 90 airtightness.

Referring to Figure 14, a fourth of the optical measurement aid of the present invention The preferred embodiment is substantially identical to the first preferred embodiment except that the suction port 131 is a combination of three circular openings spaced around the measurement aperture 12. Preferably, the suction port 131 is a combination of two circular openings spaced around the measuring hole 12. It is to be noted that the number of the circular openings constituting the suction port 131 is limited to the above, and may be any number.

Therefore, the fourth preferred embodiment can achieve the same advantages and functions as the first preferred embodiment. In addition, the suction of each object to be tested is performed by three circular openings, and not only the suction is taken. Good stability and not easy to leak.

Referring to FIG. 15, a fifth preferred embodiment of the optical measuring aid of the present invention is substantially the same as the first preferred embodiment, except that the pick-up unit picks up the back end of the waiting object. Optically measuring, and the shape of the measuring hole is a shape corresponding to the instrument of the measuring device for the device of the measuring device to enter the setting by the first port of the measuring hole, thereby facilitating the respective objects to be tested Optical measurement. In this embodiment, the shapes of the equal measuring holes are respectively cylindrical.

Thereby, the fifth preferred embodiment can also achieve the same advantages and effects as the first preferred embodiment.

In summary, the optical measurement auxiliary device of the present invention actively and strongly absorbs the object to be tested 90 by the suction unit 1 , and the object to be tested 90 is stabilized during the optical measurement process by moving to the measuring device 7 . The ground is adsorbed, so that the measurement stability is better and the repeat measurement accuracy is high.

However, the above is only the preferred embodiment of the present invention, and the scope of the present invention cannot be limited thereto, that is, according to the present invention. The simple equivalent changes and modifications made by the scope of the patent application and the contents of the patent specification are still within the scope of the invention.

1‧‧‧ suction unit

11‧‧‧Ontology

111‧‧‧Contact surface

112‧‧‧Extended section

113‧‧‧ Included paragraph

12‧‧‧ Measuring hole

121‧‧‧First port

122‧‧‧Second port

13‧‧‧ gas flow path

131‧‧‧ suction port

2‧‧‧bearing unit

21‧‧‧Substrate

22‧‧‧Place slot

90‧‧‧Test object

901‧‧‧ front end

Claims (11)

An optical measurement auxiliary device for assisting optical measurement of at least one object to be tested, the optical measurement aid device comprising: a suction unit for sucking the object to be tested, and comprising a body, at least one of which is disposed through the a measuring hole of the body, and a gas flow path disposed in the body, the measuring hole has a first port and a second port formed on the surface of the body and oppositely disposed, the gas flow path has at least one formed The suction surface of the body is adjacent to the suction port at the second port, and at least one air suction port formed on the surface of the body. The body surface is adjacent to the suction port to form a contact surface for providing adsorption of the object to be tested. The optical measurement aid device of claim 1, wherein the inner peripheral mask of the body corresponding to the measuring hole has an outer expansion section that connects the first port, and the outer expansion section is directed to the second port The first port gradually expands and extends. The optical measurement aid of claim 1, wherein the suction unit further comprises at least one gas valve member disposed on the body for controlling communication between the suction port and the suction port. The optical measurement aid of claim 3, wherein the suction unit further comprises a control member for controlling the valve member. The optical measurement aid of claim 1, wherein the suction unit further comprises at least one soft ring disposed on the surface of the body and surrounding the suction port. An optical measurement aid according to claim 1, wherein the suction The port is an annular opening that surrounds the second port of the measuring aperture. The optical measurement aid of claim 1, wherein the suction port is a plurality of circular openings spaced around the second port of the measurement aperture. The optical measurement auxiliary device of claim 1, further comprising a carrying unit, the carrying unit comprising a substrate and at least one placement groove formed by recessing the top surface of the substrate, the placement slot being configured to place the object to be tested . The optical measurement auxiliary device of claim 1, further comprising a carrying unit, the carrying unit comprising a substrate, at least one placement groove formed by recessing the top surface of the substrate, and at least one protruding from the substrate a top block adjacent to the top block of the placement slot, the placement slot is configured to place the object to be tested, and the suction unit further includes at least one valve hole disposed through the body and adjacent to the measurement hole and communicating with the gas passage, and At least one gas valve member movably disposed in the valve hole between a first position and a second position, the gas valve member causing the suction port and the pumping valve when the gas valve member is in the first position The gas interface is in a non-connected state. When the gas valve member is in the second position, the gas valve member is in a state of communication between the suction port and the air suction port, and the suction unit is superposed on the load bearing unit. When the suction port corresponds to the object to be tested in the placement slot, the top block of the carrier unit protrudes into the valve hole to push the valve member to move to the second position. An optical measurement method, which is performed by the optical measurement aid according to any one of claims 1 to 8, the optical measurement method comprising the following steps: a preparation step: placing the object to be tested Carrying unit a suction step; a suction step: after the contact surface of the suction unit is close to the object to be tested, the gas flow path is evacuated through the air suction interface, so that the suction port generates suction force, thereby taking the test to be tested a measuring step: moving the suction unit together with the sampled object that has been taken out of the carrying unit into a measuring device, and the measuring device is permeable to the contact surface through the measuring hole of the picking unit The object to be tested is optically measured; and a step of detaching: after the step of measuring, the suction unit and the object to be tested are moved to the top of the carrying unit, and between the picking unit and the carrying unit The alignment of the object to be tested is aligned with the placement slot of the carrier unit, and then the suction unit places the sample to be tested in the placement slot of the carrier unit, and finally stops the flow of the gas. The channel is evacuated such that the object to be tested is detached from the suction unit. An optical measuring method is applied to the optical measuring auxiliary device according to claim 9, wherein the optical measuring method comprises the following steps: a preparing step: placing the object to be tested in a placing slot of the carrying unit; a suction step: the contact surface of the suction unit is close to the object to be tested, and the top block of the load unit protrudes into the valve hole to push the gas valve member to the second position, so that the suction port and the suction port The interface is in a connected state, and then the gas flow path is evacuated through the air suction interface, so that the suction port generates suction force, thereby sucking the object to be tested; and a measuring step: the suction unit is taken together with the suctioned The test is to be tested Moving the object into a measuring device, the measuring device optically measuring the object to be tested adsorbed on the contact surface through the measuring hole of the picking unit; a sorting step: after the measuring step, according to the measuring The measurement result of the device is to push the valve member corresponding to the object to be tested of the defective product to the first position through the valve hole, so that the suction port corresponding to the object to be tested which is a defective product and the suction port a non-connected state, so that the object to be tested for the defective product is detached from the suction unit in advance; and a detaching step: after the sorting step, the suction unit and the object to be tested are moved to the top of the carrying unit, And performing the alignment between the suction unit and the carrying unit, so that the object to be tested sucked by the picking unit is aligned with the placing slot of the carrying unit, and then the picking unit places the sucked object to be tested on the carrying unit. Positioning in the slot, while the top block of the carrying unit protrudes into the valve hole to push the valve member to the second position, so that the suction port and the air suction port are in communication state, and finally stop for the gas flow path Pumping, The test was obtained from the suction unit.