JP2008165349A - Infrared removal filter recognition device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an infrared removal filter recognition device for surely recognizing (identifying) the shape (outer shape) of an infrared removal filter. <P>SOLUTION: In an infrared removal filter recognition device, a holding plate 11 and an infrared removal filter 7 are illuminated with the illumination rays of light of a light source 20a including infrared rays of light. Therefore, the infrared rays of light are prevented from being cut, and the illumination rays of light are prevented from being reduced at the holding plate 11 (spacing T section) positioned outside the infrared removal filter 7, and the infrared rays of light are absorbed, and the illumination rays of light are reduced at the position of the infrared removal filter 7. Thus, the difference of contrast between the infrared removal filter 7 and the holding plate 11 is increased so that it is possible to secure the recognition (identification) of the outer shape of the infrared removal filter 7 by a camera 18, and that it is possible to acquire the secured (clear) information of the input of the outer shape information to an image processing part. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an infrared filter recognizing device which is used in an apparatus for assembling a camera module and applied for incorporating an infrared removal film into a case.

  Before explaining a conventional infrared removal filter assembling apparatus, the configuration of the camera module shown in FIG. 1 (see, for example, Patent Document 1) will be described as an example in which the infrared removal filter is used. The holding member 1 is composed of a cylindrical case 2 formed with a step and a cap 3 screwed onto the front surface of the case 2.

  The lens 4 is attached to the front portion of the case 2 by the cap 3, and the insulating substrate 6 that supports the image pickup device 5 is attached to the rear portion of the case 2 by adhesion. In the case 2 between the two, an infrared removing film 7 is attached by adhesion or the like to constitute a camera module (see, for example, Reference 1).

  In the camera module assembling apparatus having such a configuration, an apparatus for assembling the infrared removing film 7 into the case 2 is used. However, the conventional apparatus for assembling the infrared removing film 7 is not shown here. However, a plurality of infrared removing films 7 are prepared in a grid pattern on a holding plate (not shown), and the infrared removing filter 7 is peeled off from the holding plate one by one by the adsorbing means. The infrared filter 7 is transported to the case 2 and inserted into the case 2.

  That is, in the conventional apparatus for incorporating the infrared ray removing film 7, the suction means is displaced at regular intervals along the infrared ray removing filters arranged at regular intervals (lattice shape) on the holding plate, and the infrared ray removing filters are sequentially arranged. It is designed to be sucked, transported and inserted.

  However, in recent years, the case 2 and the infrared filter 7 need to be downsized due to the demand for miniaturization of the camera module. However, when the case 2 and the infrared filter 7 are downsized, the device for incorporating the infrared film 7 is reduced. Therefore, when the infrared ray removal filter 7 is assembled in the case 2, a high-accuracy filter is required.

  Therefore, in order to increase the incorporation accuracy of the infrared removal filter 7, a method of improving the incorporation accuracy of the infrared removal filter 7 by recognizing the shape of the infrared removal filter 7 using a camera can be considered.

As described above, as a device for recognizing an image of a component using a camera, there is a device disclosed in an electronic component mounting apparatus (see, for example, Patent Document 2), but this configuration (not shown here). ) The component held by the component suction means movable in the X, Y, and Z directions is illuminated from below by the white light illumination means, and the illuminated moving part is photographed from above by the CCD camera. Thus, the shape of the component is image-recognized, whereby the component is conveyed to the position corrected by the image recognition.
Japanese Patent Laid-Open No. 2006-270568 JP-A-5-6911

  However, when the image recognition configuration found in such an electronic component mounting device is applied to the shape recognition device of the infrared removal filter, the infrared removal filter 7 adhered on the holding plate is formed on the holding plate by the white light illumination means. Since it is illuminated from the lower surface side, the infrared removal filter 7 and the holding plate located between the infrared removal filters 7 are white, and the CCD camera cannot recognize (identify) the outline of the infrared removal filter 7. is there.

  The present invention has been made in view of the actual situation of the prior art, and an object of the present invention is to provide an infrared filter recognizing device that can reliably recognize (identify) the shape (outer shape) of the infrared filter. is there.

  In order to achieve the above object, the infrared removing filter recognition apparatus of the present invention can photograph a plurality of infrared removing filters mounted on a translucent holding plate at a predetermined interval and the shape of the infrared removing filter. The camera is disposed on the first surface side where the infrared removing filter of the holding plate is mounted and the second surface side where the infrared removing filter of the holding plate is not mounted, and is directed from the second surface side to the camera. The illumination light of the light source includes infrared light.

  In the present invention configured as described above, since the holding plate and the infrared ray removing filter are illuminated by illumination light of a light source containing infrared light, the holding plate (interval T) located outside the infrared ray removing filter. In part), the infrared light is not cut, the illumination light is not reduced, and the infrared light is absorbed at the position of the infrared removal filter to reduce the illumination light. For this reason, the infrared removal filter and the holding plate The difference in contrast between the two becomes large, so that the camera can recognize (identify) the outer shape of the infrared ray removal filter, and can reliably obtain the outer shape information input to the image processing unit (clear information).

  In addition, when the external shape information input to the image processing unit becomes reliable (clear information) in this way, when incorporating a miniaturized infrared filter into the case, the external shape information input to the image processing unit is used as a reference. When the position of the suction means is corrected, the correction can be performed accurately, and an accurate position of the infrared ray removal filter in the case can be obtained.

  Moreover, the infrared removal filter recognition apparatus of the present invention is characterized in that, in the above invention, the camera is a monochrome camera and the light source is a red LED including visible light and infrared light.

  In the present invention configured as described above, the recognition apparatus can be made inexpensive by using a black and white camera and a red LED.

  In the infrared removing filter recognition device of the present invention, the light source is an infrared light source and the camera is a camera capable of recognizing infrared light in the above invention.

  In the present invention configured as described above, by using a camera capable of recognizing infrared light, infrared light passing through a holding plate (interval T portion) located outside the infrared removal filter and infrared light by the infrared removal filter are used. Because it can recognize (identify) the classification of light removal, the infrared recognition camera can recognize (identify) the outline of the infrared removal filter, and can reliably input the outline information to the image processing unit (clear information) Is obtained.

  Moreover, the infrared removal filter recognition device of the present invention is characterized in that, in the above invention, a plurality of infrared removal filters are arranged in a grid pattern on a holding plate, and a light source is an LED array in which a plurality of LEDs are aggregated. .

  According to the present invention configured as described above, the presence of the infrared ray removing filters and the LED array arranged in a lattice shape allows a large number of infrared ray removing filters to be illuminated by the LED array, thereby providing an inexpensive recognition device.

  In the infrared removing filter recognition device of the present invention, the holding plate and the infrared removing filter are illuminated by the illumination light of the light source containing infrared light, and therefore the holding plate (interval) located outside the infrared removing filter. In the T portion), the infrared light is not cut, the illumination light is not reduced, and the infrared light is absorbed at the position of the infrared removal filter to reduce the illumination light. For this reason, the infrared removal filter and the holding plate The contrast difference between the image processing unit and the external shape of the infrared ray removal filter is surely recognized (identified) by the camera, and the input of the external shape information to the image processing unit (clear information) can be obtained. .

  1 is a cross-sectional view of a main part of a camera module, FIG. 2 is a plan view showing an outline of an infrared removing filter recognition device of the present invention, and FIG. 3 is an infrared ray of the present invention. 4 is a partially sectional side view showing an outline of the removal filter recognition device, FIG. 4 is an enlarged sectional view of a main part of the infrared removal filter recognition device of the present invention, and FIG. 5 is an infrared removal used in the infrared removal filter recognition device of the present invention. It is an enlarged plan view which shows the arrangement | sequence of a filter.

  The camera module in which the infrared removing filter recognition apparatus of the present invention is used is as shown in FIG. 1, and since the configuration of this camera module is as described above, the description thereof is omitted here.

  Next, in the camera module assembling apparatus having such a configuration, an infrared removing filter recognizing apparatus applied for incorporating the infrared removing film 7 into the case 2 is used. The configuration of the infrared filter recognizing device according to the invention will be described with reference to FIGS.

  First, as shown in FIGS. 2 to 5, a predetermined interval T is provided between the translucent holding plate 11 made of a film or the like and the first surface side 11 a that is one surface side (upper surface side) of the holding plate 11. An infrared removing filter 7 that is attached (mounted) in a lattice shape is prepared, and then the quality of each of these infrared removing filters 7 is examined by a microscope from both sides.

  That is, the infrared removing filter 7 is in a state of being attached to the first surface side 11a of the holding plate 11, and both the side not attached to the holding plate 11 and the side attached are inspected. On the non-attached side that has been damaged due to damage or the like, on the infrared filter 7, and on the attached side that has been damaged and failed, the attached surface (No. On the holding plate 11 on the opposite side (second surface side 11b) to the first surface side 11a), a bad mark (defective symbol) M is written with oil-based ink or the like.

  Moreover, as shown in FIGS. 2-4, the infrared rays removal filter recognition apparatus of this invention has the 1st support member 13 attached to the installation stand 12, and this 1st support member 13 has an arrow. A first movable body 14 movable in the X direction is attached, and a holding plate 11 is held on the first movable body 14 with the infrared ray removing filter 7 facing upward.

  A second support member 15 is attached to the installation base 12, and a second movable body 16 that is movable in the direction of the arrow Y is movably attached to the second support member 15. A third movable body 17 movable in the direction of arrow Z is movably attached to the movable body 16, and the first, second, and third movable bodies 14, 16, and 17 allow the robot to move. It is configured.

  Further, a color or black and white CCD camera 18 is attached to the second movable body 16, and suction means 19 having a nozzle 19 a is attached to the third movable body 17. The shape (outer shape) can be photographed from above, and the infrared removing film 7 can be peeled upward by the suction means 19.

  Furthermore, an illuminating means 20 comprising a red light source 20a whose illumination light includes infrared light and a diffusing member 20b for diffusing the light from the light source 20a is disposed below the first movable body 14, and this illuminating means. 20 illuminates toward the camera 18 from the second surface side 11b of the holding plate 11 to which the infrared filter 7 is not attached, and the illumination means 20 is attached to be movable in the direction of the arrow Y1. It is held by the illumination movable body 21.

  The light source 20a in this embodiment is shown as a red LED array in which a plurality of LEDs are integrated.

  Furthermore, a conveying means 22 comprising a conveyor or the like is installed on the installation table 12 so as to cross the same. By this conveying means 22, the conveying body 23 holding the case 2 of the camera module is conveyed in the arrow X direction. It has become so.

  Next, the operation of the infrared removing filter recognizing device of the present invention will be described. First, the holding plate 11 with the infrared removing filter 7 attached is attached to the first movable body 14, and visible light and infrared light are also attached. The second surface side 11b of the holding plate 11 is illuminated through the hole 14a of the first movable body 14 by a light source 20a (illuminating means 20) made of a red LED including.

  Then, the illumination light that has passed through the holding plate 11 is emitted toward the camera 18 through the interval T and the infrared removal filter 7, and the illumination light that illuminates the infrared removal filter 7 includes infrared light. When the illumination light including the infrared light passes through the infrared removal filter 7, the infrared light is absorbed by the infrared removal filter 7 to reduce the illumination light, and the holding plate located outside the infrared removal filter 7. 11 (interval T portion), the infrared light is not cut, and therefore the illumination light does not decrease, and therefore the difference in contrast between the infrared removal filter 7 and the holding plate 11 increases.

  Thus, in the state where illumination light having a large contrast difference between the infrared removing filter 7 and the holding plate 11 is emitted toward the camera 18, the shape (outer shape) of the infrared removing filter 7 and the interval T are emitted by the camera 18. When the bad mark M is present, the bad mark M is also photographed.

  In addition, the selection of the infrared ray removal filter 7 for photographing with the camera 18 includes the movement of the first movable body 14 in the direction of arrow X, the movement of the second movable body 16 in the direction of arrow Y, and the illumination means 20. This is performed by moving the movable illumination movable body 21 in the arrow Y1 direction.

  Then, the shape information photographed by the camera 18 is input and processed in an image processing unit (not shown), and the suction means 20 skips the infrared filter 7 having the bad mark M, and the next bad mark. The infrared filter 7 without M is adsorbed.

  As described above, when the difference in contrast between the infrared removing filter 7 and the holding plate 11 increases, the outer shape of the infrared removing filter 7 is surely recognized (identified) by the camera 18 and the outer shape information to the image processing unit is obtained. Certainty of input (clear information) can be obtained.

  Further, in recent years, when the size of the camera module has been reduced and the case 2 and the infrared removal filter 7 have become smaller, when the infrared removal filter 7 is incorporated into the case 2, the adsorption means 19 is attracted to the infrared removal filter 7. Although an accurate position is required, as described above, when the outer shape of the infrared ray removal filter 7 is recognized (identified) by the camera 18 assured, the outer shape information input to the image processing unit is sure (clear information). Therefore, for example, in the case where the position of the suction unit 19 is corrected based on the outer shape information, the correction can be performed accurately, and an accurate position of the suction unit 19 with respect to the infrared removing filter 7 can be obtained. .

  In this way, after the infrared removal filter 7 is recognized (identified), the suction means 19 is moved to the infrared removal filter 7 by the movement of the third movable body 17 in the arrow Z direction. As the third movable body 17 moves, the infrared removing filter 7 is peeled off from the holding plate 11 by the suction means 19.

  Then, the suction means 19 that sucks the infrared filter 7 is carried to the position of the transport body 23 on which the case 2 is arranged by the movement of the second movable body 16 in the direction of arrow Y, and then the third movable body 17. As a result of the movement in the arrow Z direction, the infrared removing filter 7 is incorporated into the case 2 by the suction means 19, and thus the infrared removing filter 7 is recognized and incorporated.

  The camera 18 may be a camera capable of recognizing infrared light. In this case, the light source 20a is an infrared light source, and red passing through the holding plate 11 (interval T portion) located outside the infrared removal filter 7. Since the distinction between the external light and the infrared light removal by the infrared light removal filter 7 can be recognized, the external recognition (identification) of the external shape of the infrared light removal filter 7 by the infrared recognition camera is ensured, and the external shape to the image processing unit. Reliable information (clear information) can be obtained.

It is principal part sectional drawing of a camera module. It is a top view which shows the outline | summary of the infrared rays removal filter recognition apparatus of this invention. It is a partial cross section side view which shows the outline | summary of the infrared rays removal filter recognition apparatus of this invention. It is an expanded sectional view of the principal part of the infrared rays removal filter recognition apparatus of this invention. It is an enlarged plan view which shows the arrangement | sequence of the infrared rays removal filter used for the infrared rays removal filter recognition apparatus of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Holding member 2 Case 3 Cap 4 Lens 5 Image pick-up element 6 Insulating substrate 7 Infrared filter 11 Holding plate 11a 1st surface side 11b 2nd surface side 12 Installation stand 13 1st support member 14 1st movable body 14a Hole 15 Second support member 16 Second movable body 17 Third movable body 18 Camera 19 Adsorption means 19a Nozzle 20 Illumination means 20a Light source 20b Diffusion member 21 Illumination movable body 22 Conveyance means 23 Conveyance body M Bad mark T Interval

Claims (4)

  A plurality of infrared ray removal filters mounted at a predetermined interval on a translucent holding plate, and a first surface side of the holding plate on which the infrared ray removal filter is mounted, the shape of the infrared ray removal filter being photographable And a light source disposed on the second surface side of the holding plate on which the infrared filter is not mounted and illuminating the camera from the second surface side toward the camera. An infrared filter recognizing device, wherein the light contains infrared light.   2. The infrared filter recognizing device according to claim 1, wherein the camera is a monochrome camera and the light source is a red LED including visible light and infrared light.   2. The infrared filter recognizing device according to claim 1, wherein the light source is an infrared light source and the camera is a camera capable of recognizing infrared light.   The plurality of infrared removing filters are arranged in a grid pattern on the holding plate, and the light source is an LED array in which a plurality of LEDs are aggregated. Infrared removal filter recognition device.

Images