JP2005010012A - Inspection apparatus for spherical transparent body surface - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To accurately detect the defect of the surface of a spherical transparent body, such as a glass ball, regardless of the shape of the defect. <P>SOLUTION: A glass ball surface inspecting apparatus 1 comprises: an irradiation light source 16 for making the glass ball 3 irradiated with light from a light source 16a that can be regarded almost as a point light source from the position of a focus F of the glass ball 3 to be inspected; and a camera 14 for receiving a transmitted light Lt, where light is made parallel passing through the glass ball 3, and detects defects 4 in the glass ball 3, based on the quantity of light in the transmission light Lt received from the camera 14. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a spherical transparent body surface inspection apparatus that inspects whether a defect such as a groove is generated on the surface of a spherical transparent body such as a glass ball.
[0002]
[Prior art]
Conventionally, as shown in FIG. 13, a glass ball 3 is used as a sealing body for a carbonated beverage bottle (for example, a lamb bottle) (for example, Patent Document 1). Specifically, this type of carbonated beverage bottle sealing body includes an outer stopper 5 and an inner stopper 6, and the glass ball 3 is held by the inner stopper 6, and the glass ball 3 is a carbonated beverage. The inner plug 6 is sealed by being pushed up by the internal pressure of the bottle. However, for example, when defects (cracks) such as grooves, cracks, and unevenness are generated on the surface of the glass ball 3, the gas in the carbonated beverage bottle escapes from the gap between the glass ball 3 and the inner plug 6, and the carbonated beverage. When the internal pressure of the bottle is lowered, the glass ball 3 is lowered, and there arises a problem that the carbonated beverage filled in the carbonated beverage bottle leaks. Therefore, conventionally, an inspection apparatus having a configuration in which light is irradiated onto the glass ball 3 with a projector, and light irregularly reflected by a defect on the surface of the glass ball 3 is detected by a camera or the like.
[0003]
[Patent Document 1]
Japanese Patent Laid-Open No. 10-86962
[Problems to be solved by the invention]
However, if the defects on the surface of the glass ball 3 are grooves or depressions rounded at the valleys, there is a problem that irregular reflection is difficult to occur at these defects and it is difficult to detect them. Furthermore, even when the size of the defect is small or the depth is shallow, the degree of irregular reflection becomes small, and its detection is difficult. Further, depending on the incident angle of light to the glass ball 3 (that is, the position where the projector is disposed), the defect shape, and the position where the camera is disposed, the light is directly incident on the defect so that it is difficult to cause irregular reflection, or the defect In some cases, the irregularly reflected light does not enter the camera and the defect cannot be detected.
[0005]
The present invention has been made in view of the above-described circumstances, and provides a spherical transparent body surface inspection device that can accurately detect defects on the surface of a spherical transparent body such as glass balls, regardless of the shape of the defects. With the goal.
[0006]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the invention according to claim 1 includes an irradiating means for irradiating light to the spherical transparent body from a focal position of the spherical transparent body to be inspected by a light source that can be regarded as a substantially point light source A light receiving means for receiving the transmitted light that has passed through the spherical transparent body and converted into parallel light, and detects defects on the surface of the spherical transparent body based on the amount of transmitted light received by the light receiving means. A spherical transparent body surface inspection device is provided.
[0007]
According to a second aspect of the present invention, in the spherical transparent body surface inspection apparatus according to the first aspect, the irradiating means includes a light source that emits parallel light and a parallel light from the light source that is guided to the spherical transparent body. And a reflecting surface with respect to the incident angle of the transmitted light at the focal position of the transmitted light that is guided to and transmitted by the half mirror by the half mirror, and a half mirror that transmits the light transmitted through the spherical transparent body. And a mirror that creates a light source that can be regarded as a substantially point light source by reflecting the transmitted light, and the light receiving means receives light from the light source created by the mirror as the spherical transparent body. And transmitting transmitted light that has been converted into parallel light.
[0008]
According to a third aspect of the present invention, in the spherical transparent body surface inspection apparatus according to the first or second aspect, the spherical surface of the spherical transparent body is inspected by shifting the irradiation position of light from the irradiation means. And a rotating means for rotating the transparent body.
[0009]
According to a fourth aspect of the present invention, in the spherical transparent body surface inspection apparatus according to the third aspect, the rotating means includes two rotating bodies, and each of the two rotating bodies contacts the spherical transparent body. And rotating at the same or different speed.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. In the present embodiment, a glass ball used as a sealed body of a carbonated beverage bottle is exemplified as a spherical transparent body, and a glass ball surface inspection apparatus that inspects a surface defect of the glass ball will be described. First, in order to facilitate understanding of the present invention, the principle of the glass ball surface defect detection method will be described prior to describing the configuration of the glass ball surface inspection device.
[0011]
1 and 2 are diagrams for explaining the principle of the defect detection method. As shown in FIG. 1, when the parallel light Lp is irradiated to the glass ball 3 to be inspected, the glass ball 3 functions as a spherical lens with respect to the parallel light Lp, and the parallel light Lp The light passes through and is collected at the focal point F of the glass ball 3. That is, as shown in FIG. 2, a light source (hereinafter simply referred to as “point light source”) 16 a that can be regarded as a substantially point light source is disposed at the position of the focal point F, and the main axis of light irradiated from the point light source 16 a to the glass ball 3. When the glass ball 3 is irradiated with light so that is substantially coaxial with the central axis of the glass ball 3, the light from the point light source 16a follows the optical path shown in FIG. Direction), the transmitted light Lt transmitted through the glass ball 3 is converted into parallel light.
[0012]
Therefore, when the camera 14 is arranged at a position where the transmitted light Lt from the glass ball 3 can be received, if the surface of the glass ball 3 is not defective, the amount of light in the plane of the parallel transmitted light Lt is obtained. Since there is almost no distribution bias, an image having no brightness (that is, a light amount distribution in the light receiving area of the camera 14 is substantially uniform) can be obtained by imaging with the camera 14.
[0013]
On the other hand, as shown in FIG. 3, when the surface of the glass ball 3 has a defect 4 (in the illustrated example, a streak recessed in a valley shape), the light transmitted through the glass ball 3 varies depending on the refraction at the defect 4. The optical path is changed in the direction. As a result, the amount of light is reduced at a position corresponding to the defect 4 in accordance with the degree (shape, depth, size, etc.) of the defect 4 in the light flux plane of the transmitted light Lt. As shown in FIG. Thus, an image in which the defective portion is darkened is obtained by the imaging of 14.
[0014]
Thus, in the present invention, the transmitted light Lt transmitted through the glass ball 3 is received, and the presence or absence of the defect 4 is detected based on the light amount distribution (more specifically, the decrease in the amount of received light due to refraction at the defect). Therefore, if there is a defect 4 at a location irradiated with light, the light amount distribution is necessarily biased due to scattering at the defect 4, and therefore, regardless of the defect shape, unlike the conventional technique for detecting reflected light, This defect 4 can be detected.
[0015]
Further, the transmitted light Lt from the glass ball 3 is collimated, and when there is no defect 4, a configuration in which a substantially uniform light amount distribution is obtained. If the defect 4 occurs, the defect 4 is relatively small. Even if the object is shallow or shallow, it is possible to accurately detect a slight deviation in the light amount distribution caused by the defect 4 (that is, the SN ratio can be improved).
[0016]
Furthermore, since the transmitted light Lt is parallel light, the area of the dark part imaged by the camera 14 is substantially equal to the area of the defect regardless of the separation distance between the glass ball 3 and the camera 14. Thus, the size and shape of the defect can be easily detected. It is also possible to infer the degree of defect (depth or roughness of the defective part) according to the degree of brightness of the dark part.
[0017]
Next, the glass ball surface inspection apparatus 1 using the defect detection method will be described. FIG. 5 is a diagram schematically showing the configuration of the glass ball surface inspection apparatus 1 according to the present embodiment. In this figure, a stage 10 is a plate-like member on which a glass ball 3 is placed and formed from a metal or the like. The two rubber tires 12 are small-sized ones used for automobile models and the like, and each is disposed on the coaxial line with a predetermined interval (distance shorter than the diameter of the glass ball 3 to be inspected). Each of the ground planes is disposed so as to contact one side of the stage 10.
[0018]
Further, the stage 10 is supported by a support mechanism (not shown) in an inclined posture so that the side on which the rubber tire 12 is disposed is downward. That is, as shown in FIG. 6, when the glass ball surface inspection device 1 is viewed from the side, the contact portion between the stage 10 and the rubber tire 12 becomes a valley, and the glass ball 3 is placed on this valley portion, It is positioned between rubber tires 12.
[0019]
The ground contact surface of the rubber tire 12 has a frictional resistance to the extent that the glass ball 3 rotates following the rotation of the rubber tire 12, and the two rubber tires 12 are connected to different drive motors 128 and independent from each other. Is rotated. The rotation control of the rubber tire 12 (that is, control of the drive motor) is performed by the computer system 18.
[0020]
As shown in FIGS. 5 and 6, the glass ball surface inspection device 1 is an optical system for detecting surface defects of the glass ball 3, as an irradiation light source (light projector) 16, a collimator device 20, a half mirror 21, A mirror 22 (see FIG. 6) and a camera 14 are provided. The irradiation light source 16 is a white light source such as a halogen lamp. Further, the collimating device 20 converts the light from the irradiation light source 16 into parallel light and emits it toward the half mirror 21 and includes a pinhole and a collimating lens (not shown).
[0021]
The half mirror 21 reflects the light from the irradiation light source 16 that has been collimated by the collimator device 20 and guides it to the glass ball 3, and irradiates light from substantially right above the glass ball 3 (vertically upward). There is a mirror holder (not shown), which is held almost directly above the glass ball 3. Further, as shown in FIG. 6, the stage 10 is formed with an opening 10a for guiding light transmitted through the glass ball 3 from the upper side to the lower side to the lower side of the stage 10, and the abbreviation of the opening 10a. Immediately below, a mirror 22 is disposed that reflects the light that has passed through the opening 10a toward the vertically upward direction again. The mirror 22 is held by a mirror holder (not shown) at the focal point F when the glass ball 3 functions as a spherical lens. This mirror holder can arbitrarily adjust the holding height of the mirror 22, and when inspecting glass balls 3 having different dimensions, the arrangement position of the mirror 22 is easily adjusted to the focal point F of the glass balls 3. It is possible.
[0022]
Under this optical arrangement, the parallel light irradiated to the glass ball 3 from the irradiation light source 16 is focused on the reflection surface of the mirror 22, so that a light source that can be regarded as a substantially point light source is formed by the mirror 22. . Then, light is emitted from below (vertically downward) from the light source formed on the surface of the mirror 22 to the glass ball 3.
[0023]
The light irradiated from the mirror 22 to the glass ball 3 is converted into parallel light by the glass ball 3 functioning as a spherical lens when passing through the glass ball 3, and is transmitted through the half mirror 21, and this transmitted light Lt. Is received (imaged) by the camera 14. The camera 14 is a line sensor in which light receiving elements (imaging elements) that receive light are linearly arranged, and outputs a light reception signal corresponding to the amount of received light to the computer system 18.
[0024]
Here, when the surface of the glass ball is inspected, the glass ball 3 is rotated with the rotation of the rubber tire 12, and the computer system 18 connects the received light signals from the camera 14 in time series, whereby the glass ball 3. The image data of the entire rotation direction can be generated. The computer system 18 analyzes the surface state in the rotation direction of the glass ball 3 by performing image analysis on the image data.
[0025]
FIG. 7 is a diagram schematically illustrating a light reception signal output from the camera 14. As shown in this figure, when there is a defect 4 on the surface of the glass ball 3, the amount of light received is partially reduced in the radial direction of the glass ball 3 because the amount of light decreases in the light flux plane of the transmitted light Lt due to the defect 4. A depressed received light signal is obtained. Then, by connecting such light reception signals in time series, an image showing the entire surface in the rotational direction of the glass ball 3 is obtained as shown in FIG. 8, and the defect 4 is shown as a dark part in this image. Become.
[0026]
The computer system 18 uses the glass ball 3 based on the size of the dark portion (that is, the defect 4) or the degree of the defect indicated by the brightness of the dark portion (such as the degree of unevenness) in the image thus obtained. It is determined whether or not can be used as a sealing body. Specifically, the computer system 18 stores in advance the degree that can be used as a sealing body as a darkness size threshold value or lightness threshold value. If it is larger than the threshold value, it is determined that there is a defect on the surface of the glass ball 3 that cannot be used as a sealing body.
[0027]
By the way, since the glass ball surface inspection apparatus 1 of this embodiment images the substantially spherical glass ball 3 with one camera 14 fixedly arranged, the glass ball 3 is simply rotated in one direction. The entire surface of the ball 3 (particularly near the rotating pole of the glass ball 3) cannot be inspected. Therefore, in the present embodiment, the entire surface of the glass ball 3 can be inspected as follows. That is, since the rotation direction of the glass ball 3 depends on the rotation speed of each of the two rubber tires 12, two light irradiation surfaces on the glass ball 3 are moved so as to pass through the entire surface of the glass ball 3. By making the rotation speeds of the rubber tires 12 different from each other, the rotation direction of the glass balls 3 is controlled to enable the entire surface inspection.
[0028]
Specifically, as shown in FIG. 9, when each of the two rubber tires 12 rotates at the same speed and in the same direction (indicated by an arrow A in the figure), the glass ball 3 is indicated by an arrow B in the figure. The rubber tire 12 rotates in the substantially same direction as the rotation direction. Further, as shown in FIGS. 10 and 11, when one rotational speed of the rubber tire 12 is made slower than the rotational speed of the other rubber tire 12, the glass ball 3 rotates as shown by an arrow B in the figure. It rotates so as to be drawn into the rubber tire 12 with the higher speed. Therefore, in this embodiment, by controlling the rotational speeds of the two rubber tires 12 in the surface inspection of the glass balls 3, the rotational speeds of the rubber tires 12 are controlled as shown in FIGS. Accordingly, the entire surface of the glass ball 3 can be inspected by changing the rotation direction of the glass ball 3 according to the above.
[0029]
As described above, according to the present embodiment, the glass ball 3 is placed on the stage 10 and the surface defect of the glass ball 3 is simply inspected simply by detecting the transmitted light Lt converted into parallel light. Can do. Further, since the transmitted light Lt transmitted through the glass ball 3 is converted into parallel light, the defect can be detected with higher accuracy. Furthermore, since the rotation direction of the glass ball 3 can be varied by controlling the rotation speed of each of the two rubber tires 12, the entire surface of the spherical glass ball 3 is inspected by one camera 14. It becomes possible to do. Thereby, in order to image the rotation pole vicinity of the glass ball 3, it is not necessary to increase the number of the cameras 14, and can simplify an apparatus structure.
[0030]
In the present invention, as the transmitted light Lt transmitted through the glass ball 3 is closer to parallel light, the detection accuracy (S / N ratio) is improved, but only relatively large defects or conspicuous irregularities are used. If detection is sufficient, the optical path change of the transmitted light Lt occurs relatively significantly due to the defect, and therefore the transmitted light Lt does not need to be completely parallel light. In other words, as long as the transmitted light Lt is collimated to such an extent that an accuracy capable of detecting a defect is obtained, the mirror 22 may be slightly deviated from the focal point F of the glass ball 3, and instead of the collimating device 20. Alternatively, a configuration may be used in which light from the irradiation light source 16 is simply converted into parallel light by using a convex lens having a long focal length.
[0031]
<Modification / Application>
The above-described embodiments are merely one aspect of the present invention, and can be arbitrarily modified and applied within the scope of the present invention.
[0032]
(Modification 1)
In the embodiment described above, the configuration using a white light source as the irradiation light source 16 has been exemplified. However, in order to easily obtain a sufficient amount of transmitted light Lt, monochromatic light (laser light) having a wavelength that transmits the glass ball 3 is used. May be. Even when a white light source is used as the irradiation light source 16, if the wavelength transmitted through the glass ball 3 is known, an optical element having wavelength selectivity is used for the half mirror 21 and light having this wavelength is used. The structure which irradiates only to the glass ball 3 may be sufficient.
[0033]
(Modification 2)
Further, in the above-described embodiment, the configuration in which the point light source is formed by the mirror 22 disposed at the focal point F of the glass ball 3 is illustrated, but the present invention is not limited thereto, and the end face (light emitting end) of the optical fiber is disposed at the focal point F. And it is good also as a structure which irradiates light to the glass ball 3. FIG. In this configuration, a lens is disposed between the end face of the optical fiber and the glass ball 3 so that the light from the optical fiber is sufficiently spread, or the end face of the optical fiber is rounded. Is preferred.
[0034]
(Application examples)
By applying the glass ball surface inspection device 1 of the above embodiment, it is possible to configure a glass ball automatic sorting device that sequentially inspects the surface defects of a large number of glass balls 3 and sorts the defective glass balls 3. FIG. 12 is a diagram schematically showing a configuration of the glass ball automatic sorting device 2 according to this application example. In the figure, the same components as those shown in FIGS. 5 and 6 are denoted by the same reference numerals, and the description thereof is omitted.
[0035]
In this figure, the hopper 120 stores the glass balls 3 to be inspected and supplies a predetermined number of glass balls 3 to the feeder 122 under the control of the hopper controller 121. In the present embodiment, about 4000 glass balls 3 are stored in the hopper 120. The feeder 122 sends out a predetermined number of glass balls 3 supplied from the hopper 120 to the introduction lane 124 under the control of the feeder controller 123. The introduction lane 124 is arranged in a posture in which the tip is inclined downward, and the tip is connected to the lifting stage 125. The elevating stage 125 supplies the glass balls 3 one by one to the stage 10 described in the embodiment. The elevating stage 125 is arranged adjacent to the stage 10 and is moved up and down by the cylinder 126 while being slightly lowered from the stage 10. By being supported, a step is formed between the lifting stage 125 and the stage 10. Therefore, the glass ball 3 sent out to the introduction lane 124 collides with the step and stops. Here, a detection sensor 138 that detects the presence or absence of the glass ball 3 is arranged in the middle of the introduction lane 124. When the detection sensor 138 detects that the glass ball 3 is not present, the glass ball is fed from the feeder 122. 3 is supplied to the introduction lane 124, whereby a predetermined number or more of glass balls 3 exist in the introduction lane 124.
[0036]
When the elevating stage 125 is raised by the cylinder 126, one glass ball 3 on the elevating stage 125 is guided to the stage 10. A detection sensor 127 that detects the presence or absence of the glass ball 3 on the stage 10 is provided near the stage 10. When the glass ball 3 is guided to the stage 10 and the detection sensor 127 detects the glass ball 3, the drive motor 128 rotates the rubber tire 12, while the illumination controller 129 controls the irradiation light source 16 to the glass ball 3. The light is irradiated, and under the control of the camera controller 130, the camera 14 images the transmitted light from the glass ball 3, thereby performing defect inspection over the entire surface of the glass ball 3.
[0037]
The stage 10 is supported by the cylinder 131 so as to be movable up and down. When the entire surface inspection of the glass ball 3 is completed, the stage 10 is raised by the cylinder 131. When the stage 10 is raised, the glass ball 3 on the stage 10 is guided to the sorting lane 132 arranged behind the rubber tire 12 (right side in the figure) by the rotation of the rubber tire 12 (clockwise in the figure). It is burned. The sorting lane 132 sorts the glass balls 3 into non-defective products and defective products. Specifically, if the glass ball 3 is defective as a result of the entire surface inspection, the outlet of the sorting lane 132 is guided by the cylinder 134 to the defective product bucket 136, thereby causing the defective glass ball. 3 is stored in the defective product bucket 136. On the other hand, when there is no defect in the glass balls 3, the exit of the sorting lane 132 is guided to the non-defective bucket 137 by the cylinder 134, and the non-defective glass balls 3 are stored in the non-defective bucket 137.
[0038]
Here, in this embodiment, it is set as the structure which stores the quality glass ball 3 in the quality bucket 137 for every predetermined number. That is, in the present embodiment, a large number of good quality buckets 137 (two in the illustrated example) are prepared, and a predetermined number of good quality buckets 137 are provided by a glass ball counting sensor 139 provided in the middle of the sorting lane 132. When it is detected that the non-defective glass ball 3 is supplied, the cylinder 135 switches the outlet of the sorting lane 132 in order to guide the non-defective glass ball 3 to another good-quality bucket 137.
[0039]
The components of the hopper controller 121, the feeder controller 123, the cylinders 126, 131, 134, 135, and 138, the illumination controller 129, and the camera controller 130 described above are connected to the control unit 140 and controlled by the control unit 140. . Specifically, the control unit 140 includes an I / O (Input / Output) unit that is connected to each of the above-described components so as to be able to transmit and receive electrical signals, a motor controller that controls the drive motor 128, and electrical power from each of the components. A sequencer that controls each of these components in response to a signal is provided, and each unit operates as described above by this sequencer. The glass ball automatic sorting device 2 includes an operation panel 141 that is a user interface. The operation panel 141 includes various operation elements such as a power-on button, a start button, and a stop button, as well as an inspection end notification lamp that notifies that all the glass balls 3 stored in the hopper 120 have been inspected. A lamp for notifying that the non-defective bucket is full, a lamp for notifying that the defective bucket is full, and the like are provided.
[0040]
In the above configuration, when the user operates the operation panel 141 to give an inspection instruction, the control unit 140 controls each part, whereby the entire surface inspection of the glass ball 3 is performed. The balls 3 are sorted into non-defective products and defective products. That is, when the entire surface of the glass ball 3 is inspected, the operator only needs to fill the hopper 120 with the glass ball 3 and collect the buckets 136 and 137, thereby reducing the burden on the operator and reducing the time. Thus, it is possible to efficiently inspect the entire surface of the glass ball 3 and sort out good products and defective products.
[0041]
【The invention's effect】
As described above, according to the present invention, there is provided a spherical transparent body surface inspection apparatus that can accurately detect defects on the surface of a glass ball regardless of the shape of the defects.
[Brief description of the drawings]
FIG. 1 is a view for explaining the principle of a method for detecting surface defects of a spherical transparent body (glass ball) according to the present invention.
FIG. 2 is a view for explaining the principle of detecting a surface defect of a spherical transparent body (glass ball) according to the present invention.
FIG. 3 is a diagram for explaining the principle of a method for detecting a surface defect of a spherical transparent body (glass ball) according to the present invention.
FIG. 4 is a diagram schematically showing a detection result obtained by the surface defect detection method according to the present invention.
FIG. 5 is a diagram showing an outline of a basic configuration of a glass ball surface inspection apparatus according to an embodiment.
FIG. 6 is a side view of the glass ball surface inspection apparatus.
FIG. 7 is a diagram showing a light reception signal when a glass ball surface has a defect.
FIG. 8 is a view showing an image generated based on the received light signal.
FIG. 9 is a view for explaining rotation direction control of a glass ball.
FIG. 10 is a diagram for explaining the rotation direction control of a glass ball.
FIG. 11 is a diagram for explaining rotation control of a glass ball.
FIG. 12 is a diagram showing a configuration of a glass ball automatic sorting apparatus according to an application example of the present invention.
FIG. 13 is a diagram for explaining a conventional technique.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Glass ball surface inspection apparatus 3 Glass ball 4 Defect 10 Stage 10a Opening part 12 Rubber tire 14 Camera 16 Irradiation light source 16a Point light source 18 Computer system 20 Collimation apparatus 21 Half mirror 22 Mirror 140 Control unit

Claims (4)

From the focal position of the spherical transparent body to be inspected, an irradiation means for irradiating the spherical transparent body with light from a light source that can be regarded as a substantially point light source,
Light receiving means for receiving the transmitted light that has been transmitted through the spherical transparent body and converted into parallel light, and
A spherical transparent body surface inspection apparatus, wherein defects on the surface of the spherical transparent body are detected based on the amount of transmitted light received by the light receiving means. The irradiation means includes a light source that emits parallel light;
A half mirror that guides the parallel light from the light source to the spherical transparent body while transmitting the light transmitted through the spherical transparent body;
The reflection surface is arranged substantially perpendicular to the incident angle of the transmitted light at the focal position of the transmitted light guided and transmitted by the half mirror to the spherical transparent body, and substantially reflects the reflected light. With a mirror that creates a light source that can be regarded as a point light source,
2. The spherical transparent body surface inspection apparatus according to claim 1, wherein the light receiving unit receives transmitted light in which light from a light source created by the mirror passes through the spherical transparent body and is collimated. 3. . The rotation means for rotating the spherical transparent body to further inspect the entire surface of the spherical transparent body by shifting the irradiation position of the light from the irradiation means. Spherical transparent body surface inspection device. The rotating means includes two rotating bodies,
4. The spherical transparent body surface inspection apparatus according to claim 3, wherein each of the two rotating bodies contacts the spherical transparent body and rotates at the same or different speed.

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