JP2005009865A - Shape recognition device for optical member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a shape recognition device for an optical member for accurately and reliably recognizing the contour of the optical member from the electronic image of the optical member imaged by a camera. <P>SOLUTION: The shape recognition device 1 recognizes the contour of the optical member 100 as a work, and comprises an optical member retaining mechanism 2 that has a plurality of pinching sections 22 and pinches the end face of the optical member 100 by the pinching sections 22; the camera 3 for imaging the electronic image of the optical member 100 retained by the optical member retaining mechanism 2; an irradiating means 4 for irradiating the optical member 100 with irradiation light from a side opposite to the camera 3 while sandwiching the optical member 100; and an image processing means for recognizing the contour of the optical member 100 by image-processing the electronic image of the optical member 100 imaged by the camera 3. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an optical member shape recognition apparatus.
[0002]
[Prior art]
In general, a thin film such as a cured film or an antireflection film is formed on the surface of an optical member such as a lens to improve the performance and function of the optical component. Conventionally, this thin film is formed by applying a coating solution onto the surface of an optical member by a spin coating method or a dipping method. However, these methods have drawbacks such as requiring a large amount of coating solution.
[0003]
Therefore, the applicant of the present application has proposed a method of applying a coating liquid to the surface of the optical member by an ink jet method (see Patent Document 1). According to this method, the amount of the coating liquid used can be greatly reduced, which is beneficial.
When coating liquid is applied to the surface of the optical member by the ink jet method, it is necessary to selectively eject droplets from the ink jet head onto the optical member. Must be entered into the device. For this purpose, if the shape of the optical member can be recognized by performing image processing on an electronic image obtained by imaging the optical member, it is possible to cope with various optical members having different sizes and shapes.
[0004]
However, since the optical member is transparent, it is practically difficult to perform shape recognition by image processing.
Further, when imaging an optical member, the optical member is usually installed on a holding table on which a recess for positioning the optical member is formed in order to align the center with the camera. Since it is necessary to correspond to the shape on a one-to-one basis, there is also a problem that a separate holding stand must be prepared for each type of optical member.
[0005]
[Patent Document 1]
Japanese Patent Laid-Open No. 2001-327908
[Problems to be solved by the invention]
The objective of this invention is providing the shape recognition apparatus of the optical member which can recognize the outline of an optical member correctly and reliably from the electronic image of the optical member imaged with the camera.
[0007]
[Means for Solving the Problems]
Such an object is achieved by the present invention described below.
[0008]
An optical member shape recognition device of the present invention is an optical member shape recognition device for recognizing the contour of an optical member as a workpiece,
An optical member holding mechanism having a plurality of holding portions, and holding the end face of the optical member by the plurality of holding portions;
A camera that captures an electronic image of the optical member held by the optical member holding mechanism;
Illumination means for irradiating the optical member with illumination light from the side opposite to the camera across the optical member;
And image processing means for recognizing an outline of the optical member by performing image processing on an electronic image of the optical member captured by the camera.
Accordingly, it is possible to provide an optical member shape recognition device capable of accurately and reliably recognizing the contour of the optical member from the electronic image of the optical member captured by the camera.
[0009]
The optical member shape recognition device of the present invention preferably further includes an optical member moving mechanism that moves the optical member held by the optical member holding mechanism in two directions perpendicular to the optical axis direction of the camera.
Thereby, in the electronic image, the contour of the optical member can be illuminated with uniform brightness over the entire circumference, so that the contour can be recognized more accurately and reliably.
[0010]
In the optical member shape recognition apparatus of the present invention, it is preferable that the optical member shape recognition device further includes an illumination area adjustment unit that adjusts an illumination area of the illumination unit.
Thereby, the outline of the optical member can be recognized more accurately and reliably.
In the optical member shape recognition apparatus of the present invention, it is preferable that the illumination area adjusting means is constituted by a stop for restricting the illumination light.
Thereby, the illumination area can be adjusted with a simple configuration.
[0011]
In the optical member shape recognition apparatus according to the present invention, it is preferable that the illumination area adjusting unit includes an illumination unit moving mechanism that moves the illumination unit in the optical axis direction of the camera.
Thereby, the illumination area can be adjusted with a simple configuration.
In the optical member shape recognition apparatus of the present invention, it is preferable that the optical member shape recognition apparatus further includes a control unit that controls the operation of the illumination area adjusting unit based on the shape data of the optical member.
Thereby, since adjustment of an illumination area can be performed automatically, the operation by an operator becomes unnecessary and it can process rapidly.
[0012]
In the optical member shape recognition apparatus of the present invention, it is preferable that the optical member shape recognition device further includes an illumination intensity adjustment unit that adjusts the intensity of light emitted from the light source of the illumination unit.
Thereby, the outline of the optical member can be recognized more accurately and reliably.
In the optical member shape recognition device of the present invention, it is preferable that the clamping portion has a concave portion, and an end surface of the optical member is in contact with the concave portion.
As a result, the optical member holding mechanism can reliably hold the optical member without the optical member fluttering or being displaced in the thickness direction. Further, even when the optical member is turned upside down, it can be similarly held.
[0013]
In the optical member shape recognition device of the present invention, it is preferable that the concave portion is substantially V-shaped.
As a result, the optical member holding mechanism can reliably hold the optical member without the optical member fluttering or being displaced in the thickness direction. Further, even when the optical member is turned upside down, it can be similarly held.
[0014]
In the optical member shape recognition apparatus of the present invention, it is preferable that the image processing includes expansion processing and erosion processing.
Thereby, even if it is a case where the outline of an optical member is cut | disconnected by the clamping part in an electronic image, the outline of an optical member can be recognized more correctly and reliably.
[0015]
In the optical member shape recognition device of the present invention, in the electronic image, the contour of the optical member is cut at the location of the clamping portion, and the image processing means cuts the cut by performing the expansion process. It is preferable that after the portions are joined and the cut portions are joined, the erosion treatment is performed to reduce the size of the expanded outline by the expansion treatment to the original size.
Thereby, even if it is a case where the outline of an optical member is cut | disconnected by the clamping part in an electronic image, the outline of an optical member can be recognized more correctly and reliably.
[0016]
In the optical member shape recognition apparatus of the present invention, it is preferable that the image processing further includes an opening process.
Thereby, the shape of the optical member can be more accurately and reliably recognized without being affected by the optical member holding mechanism.
In the optical member shape recognition device of the present invention, in the electronic image in the process of image processing by the image processing means, the contour of the optical member and the contour of the optical member holding mechanism are combined, and the image processing means It is preferable to separate the contour of the optical member holding mechanism from the contour of the optical member by performing the opening process.
Thereby, the shape of the optical member can be more accurately and reliably recognized without being affected by the optical member holding mechanism.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF THE PREFERRED EMBODIMENTS The optical member shape recognition apparatus of the present invention will be described below in detail based on preferred embodiments shown in the accompanying drawings.
<First Embodiment>
FIG. 1 is a perspective view showing a first embodiment of an optical member shape recognition device (hereinafter simply referred to as “shape recognition device”) according to the present invention, and FIG. 2 is an optical member holding device in the shape recognition device shown in FIG. FIG. 3 is a block diagram of the shape recognition device shown in FIG. 1, and FIG. 4 is a process diagram when the shape recognition device shown in FIG. 1 performs shape recognition of the optical member. 5 to 8 are diagrams showing electronic images in the process of image processing in the shape recognition apparatus shown in FIG. In the following, for convenience of explanation, the upper side in FIG. 1 is referred to as “upper” and the lower side is referred to as “lower”. The hatched areas in FIGS. 5 to 8 indicate dark places in the image.
[0018]
The shape recognition apparatus 1 shown in FIG. 1 is an apparatus that recognizes the contour of the optical member 100 by taking an electronic image of the optical member 100 as a workpiece and performing image processing on the electronic image. The contour data of the optical member 100 recognized by the shape recognition device 1 can be used, for example, to control processing in a processing device that processes the optical member 100. Although it does not specifically limit as this processing apparatus, For example, the industrial inkjet drawing apparatus etc. which apply | coat a coating liquid (Coating liquid for forming thin films, such as a cured film and an antireflection film), on the surface of the optical member 100 are mentioned. . Note that the type of the optical member 100 is not particularly limited, and any member such as a lens, an optical filter, and a prism may be used.
[0019]
As illustrated in FIG. 1, the shape recognition device 1 moves the optical member holding mechanism 2, the camera 3 that captures an electronic image of the optical member 100, the illumination unit 4 that illuminates the optical member 100, and the optical member 100. And an optical member moving mechanism 5.
The optical member holding mechanism 2 has a plurality (three in the drawing) of arms 21 and a clamping portion 22 provided at the tip of each arm 21.
[0020]
The optical member holding mechanism 2 holds the optical member 100 by holding the end surface 101 of the optical member 100 by the three holding portions 22. The optical member holding mechanism 2 can hold the optical member 100 according to the shape and size of the optical member 100 by adjusting the position of each arm 21 and adjusting the interval between the holding portions 22. Therefore, it is not necessary to prepare a separate optical member holding mechanism 2 for each optical member 100 having a different shape and size, which is advantageous.
[0021]
As shown in FIG. 2, each clamping part 22 has a substantially V-shaped recess 221, and in a state where each clamping part 22 clamps the optical member 100, the end surface of the optical member 100 is in the recess 221. 101 contacts. Thereby, the optical member 100 can be reliably held without the optical member 100 fluttering or being displaced in the vertical direction in FIG. Further, even when the optical member 100 is turned upside down (front and back) with respect to FIG. Therefore, it is possible to easily cope with the case where the coating liquid is applied to the back surface of the optical member 100.
[0022]
As shown in FIG. 1, the camera 3 is supported and fixed on the upper side of the optical member 100 held by the optical member holding mechanism 2 via a support base 11. The camera 3 includes a main body 31 incorporating a solid-state imaging device such as a CCD (Charge Coupled Device), and a camera lens 32, and takes an electronic image of the optical member 100 held by the optical member holding mechanism 2. To do.
[0023]
On the lower side of the optical member 100 held by the optical member holding mechanism 2, the illumination means 4 having the light source 41 is installed concentrically with the optical axis 33 of the camera 3. The illumination unit 4 irradiates the optical member 100 with illumination light from the side opposite to the camera 3 with the optical member 100 interposed therebetween. The illumination light from the illumination means 4 may be diffused light or parallel light. The type of the light source 41 is not particularly limited, and for example, a flat fluorescent lamp, a halogen lamp, a high brightness LED, or the like can be used. The illumination means 4 is provided with a stop 42 for restricting illumination light as illumination area adjustment means for adjusting the illumination area (projection area of illumination light on the surface of the optical member 100).
[0024]
In the present invention, since the illumination unit 4 is arranged as described above, when the optical member 100 is imaged by the camera 3, the illumination light is reflected on the end surface 101 of the optical member 100, and the outline of the optical member 100 rises brightly. Therefore, the shape recognition of the optical member 100 can be performed accurately and reliably.
On the other hand, unlike the present invention, when the illumination light is irradiated onto the optical member 100 from the forward direction (from the same side as the camera 3), the optical member 100 is transparent, The outline is not clearly visible, and it is difficult to recognize the shape by image processing, or an accurate shape cannot be recognized.
[0025]
The optical member holding mechanism 2 is supported via an optical member moving mechanism 5 and is movable. The optical member moving mechanism 5 can move the optical member 100 held by the optical member holding mechanism 2 in the x-axis direction and the Y-axis direction perpendicular to the optical axis 33 direction of the camera 3. Thereby, the position of the optical member 100 can be accurately adjusted so that the center of the optical member 100 coincides with the optical axis 33 of the camera 3.
The optical member moving mechanism 5 according to the present embodiment can further move the optical member 100 in the z-axis direction parallel to the optical axis 33 and rotate and move around the y-axis (rotation in the θ direction). ing.
[0026]
As shown in FIG. 3, the shape recognition device 1 further includes an image processing unit 6, an aperture driving mechanism 7, an illumination intensity adjustment unit 8, a control unit 9, and a display 12.
The image processing means 6 recognizes the contour of the optical member 100 by performing image processing on the electronic image of the optical member 100 captured by the camera 3 as described later.
[0027]
The aperture driving mechanism 7 is for opening and closing the aperture 42 by driving an aperture 42 by an actuator such as a servo motor.
The illumination light intensity adjusting means 8 adjusts the light intensity of the light emitted from the light source 41 by adjusting the voltage applied to the light source 41.
The display 12 includes, for example, a CRT (Cathode-Ray Tube), a liquid crystal display, and the like, and displays, for example, an operation screen, a data input screen, and the like. In addition to this, the display 12 displays an image of the optical member 100 picked up by the camera 3, a display of a processing status in the middle of image processing, and a contour of the optical member 100 finally recognized. Can do.
[0028]
The control unit 9 controls the optical member moving mechanism 5, the image processing unit 6, the aperture driving mechanism 7, the illumination intensity adjustment unit 8, and the display 12. The control unit 9 includes a CPU (Central Processing Unit) 91 and a storage unit (storage unit) 92. The storage unit 92 has a storage medium (recording medium) that can be read by the CPU 91, and the storage medium is configured by a magnetic or optical recording medium, a semiconductor memory, or the like.
[0029]
Hereafter, each process at the time of shape recognition of the optical member 100 by such a shape recognition apparatus 1 is demonstrated, referring FIG.
First, the target optical member 100 is set in the optical member holding mechanism 2 (step S01). Further, the shape data (dimension, thickness, convex lens or concave lens, etc.) of the optical member 100 is input to the control means 9. Then, the optical member moving mechanism 5 is operated to make the center of the optical member 100 coincide with the optical axis 33 of the camera 3. Thereby, the outline of the optical member 100 can be recognized more accurately and reliably. The operation of the optical member moving mechanism 5 at this time may be automatically controlled by the control means 9 based on the input shape data or the like, or may be manually controlled by the operator.
[0030]
Next, preliminary imaging of the optical member 100 is performed by the camera 3 (step S02). In the electronic image picked up by the camera 3, the illumination light is reflected on the end face 101 as described above, and the contour 201 of the optical member 100 before image processing (hereinafter referred to as “pre-processing contour 201”) appears bright. In the central portion 202, the light source 41 of the illumination means 4 is brightly reflected (see FIG. 5).
[0031]
As described above, by operating the optical member moving mechanism 5, the center of the optical member 100 is made to coincide with the optical axis 33 of the camera 3, so that the pre-processing outline 201 shines with uniform brightness over the entire circumference. Therefore, the shape recognition can be performed more accurately and reliably. However, the pre-processing outline 201 is cut off at the portion of the sandwiching portion 22 because the illumination light does not strike.
[0032]
Based on the shape data of the optical member 100, the control means 9 adjusts the opening degree of the diaphragm 42 via the diaphragm drive mechanism 7 and adjusts the illumination area (step S03). In the electronic image, the brightness of the pre-processing outline 201 varies greatly depending on the thickness of the end surface 101 of the optical member 100 (bright when the end surface 101 is thick and dark when thin), but by adjusting the illumination area, The brightness of the pre-processing outline 201 in the electronic image can be automatically adjusted to an appropriate brightness. Further, since the size of the central portion 202 varies depending on the characteristics of the optical member 100 (whether it is a convex lens or a concave lens), the size of the central portion 202 is appropriately adjusted (contour before processing) by adjusting the illumination area. It is possible to adjust the size so that it does not overlap with 201.
Next, the control means 9 adjusts the light intensity of the light source 41 of the illumination means 4 via the illumination light intensity adjustment means 8 based on the shape data of the optical member 100 (step S04). Thereby, the brightness of the pre-processing outline 201 in the electronic image can be automatically adjusted to a more appropriate brightness.
[0033]
In this embodiment, the outline of the optical member 100 can be recognized more accurately and reliably by performing the illumination area (aperture) adjustment and the illumination intensity adjustment as described above. The illumination intensity adjustment is particularly effective when, for example, the shape of the optical member 100 in which the size and shape of the optical member 100 are constant and only the thickness of the end face 101 is recognized is recognized. In addition, when the illumination area can be expanded only within a certain range due to the characteristics of the optical member 100 (whether it is a convex lens or a concave lens), the brightness of the pre-processing contour 201 is adjusted by adjusting the illumination luminous intensity, so that the more accurate and stable The outer shape of the optical member 100 can be acquired.
In this embodiment, the illumination area (aperture) adjustment and illumination light intensity adjustment are automatically performed. However, the present invention is not limited to this, and the operator manually adjusts the preliminary captured image displayed on the display 12. You may make it perform illumination area (aperture) adjustment and illumination luminous intensity adjustment.
[0034]
Next, the optical image of the optical member 100 is captured by the camera 3 (step S05), the image data is taken into the storage unit 61 provided in the image processing means 6 (step S06), and image processing by the image processing means 6 is started.
First, the image processing means 6 detects the edge (outline portion) and the center (center portion) as follows (step S07). In the present embodiment, an electronic image of the optical member 100 is taken (captured) as shown in FIG. That is, the light source 41 of the illumination unit 4 is photographed through the central portion (central portion 202) of the optical member 100, and the contour portion (pre-processing contour 201) of the optical member 100 appears brightly. However, there is a possibility that this contour portion is shaded by the holding portion 22 of the optical portion holding mechanism 2 and the region is divided or integrated with a part or all of the reflection portions of the holding portion 22 and the arm 21. Is included.
[0035]
In addition, the brightness of the contour portion of the optical member 100 tends to depend on the thickness of the end face of the optical member 100. In particular, when the thickness is small, the brightness cannot be detected by a normal process for detecting a bright part. There is. In such a case, it is effective to create an image obtained by averaging the original image in a certain range, and to detect a subtle edge portion by comparing this image with the original image.
[0036]
Next, the image processing means 6 performs an expansion process on the region including the contour portion of the optical member 100 detected in step S07 (step S08). As a result, as shown in FIG. 6, the pre-processing contour 201 is expanded, so that the cut portions cut by the sandwiching portion 22 are joined, and a post-expansion contour 203 is generated in which the entire circumference is connected. In the present invention, by performing this expansion processing, the contour of the optical member 100 can be recognized more accurately and reliably even when the pre-processing contour 201 is cut.
[0037]
Next, the image processing means 6 performs the filling process (step S09) of the region of the post-expansion contour 203, and then performs the erosion process (shrinkage process) with the same size as the expansion process (step S10). Thereby, the post-expansion contour 203 is reduced to the original size by the enlargement by the expansion processing, and the post-erosion contour 204 is generated (see FIG. 7). To this post-erosion outline 204, three optical member holding mechanism equivalent portions (contours of the optical member holding mechanism 2) 205 corresponding to the three sets of arms 21 and the holding portion 22 are coupled.
[0038]
Next, the image processing means 6 performs an opening process (step S11). This opening process is a process of taking out only a portion where a certain shape (circle 206 in the figure) is movable in the region in the contour 204 after erosion. By this opening process, the optical member holding mechanism equivalent part 205 is removed, and a post-process outline 207 is generated after the image process (see FIG. 8). This processed contour 207 exactly matches the actual contour of the optical member 100. Thus, by performing the opening process, the influence of the optical member holding mechanism 2 can be surely eliminated, and more accurate and reliable shape recognition can be performed. The recognized data of the processed contour 207 is stored in the storage unit 61 of the image processing unit 6 or the storage unit 92 of the control unit 9 (step S12).
[0039]
As described above, the shape recognition apparatus 1 of the present invention can accurately and reliably recognize the outline of the transparent optical member 100 that is usually difficult to recognize the shape, and is also affected by the optical member holding mechanism 2. The above effects can be achieved without receiving them. Therefore, by inputting the contour data of the optical member 100 obtained by the shape recognition device 1 to the ink jet drawing device and using it, not only the protective coating material is applied to the optical member (lens) but also, for example, a lens for sunglasses This is particularly effective when the colorant is applied uniformly or with gradation, or when numbers or marks are printed on a part of the optical member (lens).
[0040]
Second Embodiment
FIG. 9 is a perspective view showing a second embodiment of the shape recognition apparatus of the present invention. Hereinafter, the second embodiment of the shape recognition device of the present invention will be described with reference to this figure, but the description will focus on differences from the above-described embodiment, and the description of the same matters will be omitted.
The shape recognition apparatus 1 ′ of this embodiment is the same as that of the first embodiment except that the configuration of the illumination area adjustment unit is different.
[0041]
The shape recognition device 1 ′ includes an illumination means moving mechanism 13 that moves (lifts) the illumination means 4 in the direction of the optical axis 33 of the camera 3 as illumination area adjustment means. In this shape recognition apparatus 1 ′, instead of adjusting the diaphragm 42, the illumination means moving mechanism 13 is operated to raise and lower the illumination means 4, and the distance between the optical member 100 and the illumination means 4 is changed. The illumination area can be adjusted.
[0042]
The optical member shape recognition apparatus of the present invention has been described above with reference to the illustrated embodiment. However, the present invention is not limited to this, and each part constituting the optical member shape recognition apparatus has the same function. It can be replaced with any configuration that can be exhibited. Moreover, arbitrary components may be added.
Further, the optical member shape recognition device of the present invention may be a combination of any two or more configurations (features) of the above embodiments.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a first embodiment of an optical member shape recognition apparatus of the present invention.
FIG. 2 is a diagram illustrating a state in which an optical member holding mechanism holds an optical member.
FIG. 3 is a block diagram of the shape recognition apparatus shown in FIG.
FIG. 4 is a process diagram when performing shape recognition of an optical member.
FIG. 5 is a diagram showing an electronic image in the course of image processing.
FIG. 6 is a diagram showing an electronic image in the course of image processing.
FIG. 7 is a diagram showing an electronic image in the course of image processing.
FIG. 8 is a diagram showing an electronic image in the course of image processing.
FIG. 9 is a perspective view showing a second embodiment of the shape recognition apparatus of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1, 1 '... Optical member shape recognition device 2 ... Optical member holding mechanism 21 ... Arm 22 ... Clamping part 221 ... Recessed part 3 ... Camera 31 ... Main body 32 ... Camera lens 33 ... Optical axis 4. Illuminating means 41 ... Light source 42 ... Aperture 5 ... Optical member moving mechanism 6 ... Image processing means 61 ... Storage section 7 ... Aperture drive mechanism 8 ... Illumination intensity adjustment means 9 ... Control means 91 …… CPU 92 …… Storage unit 11 …… Support base 12 …… Display 13 …… Illuminating means moving mechanism 100 …… Optical member 101 …… End face 201 …… Pre-processing contour 202 …… Center portion 203 …… Expanded contour 204 …… Contour after erosion 205 …… Optical member holding mechanism equivalent portion 206 …… Circle 207 …… Contour after processing S01 to S12 …… Step

Claims (13)

An optical member shape recognition device for recognizing the contour of an optical member as a workpiece,
An optical member holding mechanism having a plurality of holding portions, and holding the end face of the optical member by the plurality of holding portions;
A camera that captures an electronic image of the optical member held by the optical member holding mechanism;
Illumination means for irradiating the optical member with illumination light from the side opposite to the camera across the optical member;
An optical member shape recognition apparatus comprising: an image processing unit that recognizes an outline of the optical member by performing image processing on an electronic image of the optical member captured by the camera. The optical member shape recognition apparatus according to claim 1, further comprising an optical member moving mechanism that moves the optical member held by the optical member holding mechanism in two directions perpendicular to an optical axis direction of the camera. The optical member shape recognition apparatus according to claim 1, further comprising an illumination area adjustment unit that adjusts an illumination area of the illumination unit. The optical member shape recognition apparatus according to claim 3, wherein the illumination area adjustment unit is configured by a diaphragm that restricts the illumination light. The optical member shape recognition apparatus according to claim 3, wherein the illumination area adjusting unit includes an illumination unit moving mechanism that moves the illumination unit in an optical axis direction of the camera. 6. The optical member shape recognition apparatus according to claim 3, further comprising a control unit that controls the operation of the illumination area adjusting unit based on the shape data of the optical member. The shape recognition apparatus for an optical member according to any one of claims 1 to 6, further comprising illumination intensity adjustment means for adjusting the intensity of light emitted from the light source of the illumination means. The optical member shape recognition device according to claim 1, wherein the holding portion has a concave portion, and an end surface of the optical member is in contact with the concave portion. 9. The optical member shape recognition apparatus according to claim 8, wherein the concave portion is substantially V-shaped. The optical member shape recognition apparatus according to claim 1, wherein the image processing includes expansion processing and erosion processing. In the electronic image, the contour of the optical member is cut at the location of the clamping portion, and the image processing means combines the cut portions by applying the expansion process, and the cut portions are connected. 11. The optical member shape recognition apparatus according to claim 10, wherein the erosion process is performed to reduce the size of the contour expanded by the expansion process to an original size. 12. The optical member shape recognition apparatus according to claim 1, wherein the image processing further includes an opening process. In the electronic image in the process of image processing by the image processing means, the contour of the optical member and the contour of the optical member holding mechanism are combined, and the image processing means performs the opening process, thereby The shape recognition device for an optical member according to claim 12, wherein the contour of the optical member holding mechanism is separated from the contour of the optical member.

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