JP2022104845A - Indication method for center of rotation of spindle-less turntable, and spindle-less turntable and light box applied with indication method - Google Patents

Abstract

To provide an indication method used to indicate the center of rotation of a spindle-less turntable so that a user can mount a subject in the center of rotation of a board surface, and the spindle-less turntable and a light box to which the indication method is applied.SOLUTION: An indication method comprises: displaying a preview screen of a fixed type photography device by a display device; rotating a fixture to define the center of rotation based upon a movement trajectory that the fixture forms in the preview screen; and aligning a light beam of an indication device with the center of rotation. A light box and its spindle-less turntable to which this indication is applied includes a disk, a driving mechanism and the indication device. The driving mechanism moves the disk from a peripheral edge of the disk and rotates the disk on the center of rotation. The indication device is installed at the disk peripheral edge, and used to irradiate a disk surface with a light beam. When a subject is placed, the light beam passes continuously between the subject and disk to illuminate the center of rotation located on the disk surface.SELECTED DRAWING: Figure 3

Description

The present invention relates to a method for marking a rotation center of a spindleless turntable, and more particularly to a lightbox including a spindleless turntable and a spindleless turntable.

With the remarkable advances in e-commerce, many existing website creation platforms can support the playback of 360-degree interactive video, giving website visitors a great user experience. For example, when it comes to auction sites, it is common practice to add elaborate and beautiful pictures of the product from different angles to the ad text so that visitors can better understand the characteristics of the product. Website visitors will be able to see various features of the product in detail by providing an additional 360 degree interactive video by the operator and allowing the website visitor to rotate freely to the angle they want to see the product. Since you can understand the products better, you can effectively reduce the troubles of online shopping. A lightbox with a spindleless turntable appeared over time to quickly create a 360-degree interactive video of a transparent background.

Spindleless turntables are usually driven by a driving mechanism to move and rotate a transpent-round plater that does not have a spindle at the bottom from the side edge, so when shooting products on the translucent surface, the bottom light is used. Not only can the shadow of the product formed on the translucent board surface be erased by using, but there is no need to worry about the problem that the spindle gets into the lens. In addition, bottom lights and backlights are further installed below and behind the translucent board surface, and by using the on / off of the bottom lights and backlights, the color of the product image is the same, but the background color is different. It is possible to take a picture and automatically generate a product image with a transparent background by utilizing the difference in the color of the background. If the translucent board surface and the product are rotated together during shooting, a 360-degree interactive moving image with a transparent background can be automatically generated. However, since the translucent board surface does not have a spindle, it is difficult for the user to determine the center of rotation at the time of shooting. For this reason, turntables and lightboxes with a translucent board surface are common in the current market, but usually a fixed marking device is used to mark the center of the board so that the user can see it.

1 and 2 are diagrams showing the usage state of the marking device in the prior art, respectively. As shown in FIG. 1, the first is a marking method in which a marking device 20a capable of emitting a cross-shaped ray 22a is installed directly above the translucent board surface 10 and the intersection of the light rays 22a is aligned so as to hit the rotation center of the translucent board surface 10. Is. However, when the subject 30 is placed, the propagation path of the light rays 22a is obstructed, and the intersections of the light rays 22a are often not well irradiated on the translucent board surface 10. As shown in FIG. 2, the second is to install a marking device 20b capable of emitting a linear light beam 22b on the front upper side and the left side or the right upper side of the translucent board surface 10, respectively, on the translucent board surface 10 of two light rays. This is a marking method in which the intersections of the above are aligned so as to hit the center of rotation of the translucent board surface 10. Similarly, when the subject 30 is placed, the propagation path of the light rays 22b is obstructed, and the two light rays 22b often cannot form an intersection well on the translucent board surface 10. Further, the center of rotation of the translucent plate surface 10 cannot be visually seen, and the translucent plate surface 10 cannot usually form a perfect circle due to manufacturing tolerances. Therefore, if the relative position between the translucent board surface 10 and the marking device 20a is changed once, or if the drive mechanism abuts on the translucent board surface 10 and the strength of the pushing force is changed once, the user repositions the center of rotation. It will be difficult to find. Therefore, it is urgently necessary to propose a method of marking the center of rotation of the spindleless turntable, and a turntable and a light box that can continuously find the center of rotation in the process of placing the subject.

In order to solve the above-mentioned problems, a marking method used for marking the rotation center of the spindleless turntable so that the user can place the subject on the rotation center of the board surface is provided.

In order to solve the above-mentioned problems, the present invention provides a spindleless turntable or a spindleless turntable that allows the user to continuously find the center of rotation on the board in the process of placing the subject on the board. Further provide a light box to be equipped.

The marking method provided by the present invention is used to indicate the center of rotation of a spindleless turntable, and (a) displays a preview screen of a fixed photographing device by a display device, and the preview screen is at least a spindleless turntable. Based on the step including the central area of the board surface and the jig placed on the board surface, and (b) the jig is rotated by driving the spindleless turntable, and the movement locus formed by the jig in the preview screen. , The step of defining the reference center corresponding to the rotation center in the preview screen, and (c) irradiating the light beam toward the board surface by at least one marking device, and the light beam displayed in the preview screen passes through the reference center. Including steps to make it.

In one embodiment of the present invention, the above-mentioned jig has at least one reference point, at least one reference line segment, or a combination thereof.

In one embodiment of the present invention, the above-mentioned step (b) captures the preview screen at least once in the rotation process of the jig to acquire at least one captured image, and superimposes the captured image and the preview screen. It further includes forming a movement locus in the preview screen after superposition. In a specific embodiment of the invention, in step (b) above, the preview screen is first captured to acquire the first position in the captured image of the jig, and then the jig is driven by driving a spindleless turntable. It involves rotating 180 degrees to obtain a second position in the captured image of the jig and further defining a reference center based on the midpoint between the first and second positions. In another particular embodiment of the invention, step (b) above further comprises adjusting the transparency of the captured image and then overlaying the translucent captured image with the preview screen.

In one embodiment of the present invention, in step (b) described above, the preview screen is captured a plurality of times in the rotation process of the jig to acquire a plurality of captured images, and these captured images are superposed to form a movement locus. Including more to do.

In one embodiment of the present invention, the above-mentioned movement locus is a circular locus, an arc-shaped locus, an annular locus, or a combination thereof.

In one embodiment of the present invention, the fixed imaging device described above captures a preview screen from one side or above of a spindleless turntable.

In one embodiment of the present invention, the marking device described above irradiates light rays from at least one of at least one side of the spindleless turntable, above and directly above one side, toward the board surface. In a particular embodiment of the invention, the spindleless turntable described above includes a base portion and a disk, the base portion has an apex surface and an opening formed on the apex surface, and the disk has a disk surface and is in an opening. Will be installed in. The marking device is installed on the top surface and emits light rays toward the board surface. In another particular embodiment of the invention, the spindleless turntable described above is installed in a lightbox, and the marking device is installed in the center or side edge of the ceiling plate of the lightbox, as well as light rays toward the board. Irradiate. In yet another specific embodiment of the invention, the spindleless turntable described above is installed in the lightbox and the marking device is installed on the lower or upper edge of the side plate of the lightbox and towards the board. Irradiate a light beam.

In one embodiment of the invention, the above-mentioned rays are spot rays, linear rays, circular rays, annular rays, polyhedral rays, cross rays, or a combination thereof.

The spindleless turntable provided by the present invention is further used to move a subject to rotate around the center of rotation of the spindleless turntable, which is a disk, drive mechanism and at least one marking device. including. The disk has a disk surface, and the drive mechanism moves the disk from the peripheral edge of the disk to rotate it around the center of rotation. The marking device is installed on the periphery and is used to irradiate the light beam toward the board surface. In the process of placing the subject on the board surface, the light ray passes between the subject and the disk and is located at the center of rotation located on the board surface. Be irradiated.

In one embodiment of the invention, the drive mechanism described above comprises at least one driven unit and at least one drive unit, the driven unit abutting the disk from one side of the periphery and the drive unit from another side of the periphery. It comes into contact with the disk and moves the disk to rotate around the center of rotation.

In one embodiment of the present invention, the drive mechanism described above includes a plurality of drive units, and these drive units abut on the disk from different directions on the peripheral edge, and at the same time, move the disk to rotate around the center of rotation. Let me.

In one embodiment of the present invention, the above-mentioned ray is a spot ray or a cross ray, and the center point of the spot ray or the intersection of the cross rays is applied to the rotation center located on the board surface.

In one embodiment of the present invention, the number of the above-mentioned marking devices is plurality, each light ray is a linear light ray, and the intersection of the linear light rays is applied to the rotation center located on the board surface.

In one embodiment of the present invention, the above-mentioned marking device is fixedly installed on the peripheral edge by a magnetic element, an engaging member, a fastening member, or a combination thereof.

In one embodiment of the invention, the spindleless turntable described above further comprises a base, the base having openings formed on the top surface and the top surface, a marking device installed on the top surface, and a disk. Is installed in the opening.

In one embodiment of the invention, the spindleless turntable described above further comprises a bottom light, the disc is a translucent disc, and the bottom light is installed below the translucent disc. In one particular embodiment of the invention, the material of the translucent disk is translucent glass, transparent glass, translucent plastic, transparent plastic or a combination thereof.

The lightbox provided by the present invention includes the spindleless turntable described above, a base and a backlight installed behind the disk. The base has a top surface, an opening formed on the top surface and a bottom light, a marking device is installed on the top surface, the disk is a translucent disk and is installed in the opening, and the bottom light is further installed on the top surface. It is installed on the surface and below the translucent disk. In one particular embodiment of the invention, the lightbox is at least one of a front light installed in front of the base, a side light installed on one side of the base, and a top light installed above the base. Including one more.

According to the above, the marking device of the present invention is installed on one side of the disk, not above or directly above one side of the disk as described in the prior art. Therefore, in the process of placing the subject on the board, the light beam passes between the subject and the disk and is emitted onto the board, especially when the subject is located directly above the center of rotation and very close to the board. As a result, the center of rotation can be continuously marked so that the user can see it. In addition, since the spindleless turntable does not have a rotating shaft, if the disk or drive mechanism is replaced or reassembled, the center of rotation shifts due to manufacturing or assembly tolerances, and it becomes necessary to recalibrate the marking device. Therefore, the present invention further provides a marking method that allows the user to locate the actual center of rotation of the spindleless turntable at any time by himself or by using a marking device.

In order to make the above-mentioned features and advantages of the present invention more clear and easy to understand, a plurality of embodiments are given below, and the drawings will be combined and described in detail.

It is a figure which shows the use state of the marking device in the prior art. It is a figure which shows the use state of the marking device in the prior art. It is a figure which shows the structure of the spindleless turntable based on the embodiment of this invention. It is a figure which shows the structure of the light box based on the embodiment of this invention. It is a flowchart of the marking method based on the embodiment of this invention. It is a figure which shows the operation in the marking method shown in FIG. It is a figure which shows the operation in the marking method shown in FIG. It is a figure which shows the operation in the marking method shown in FIG. It is a figure which shows the movement locus which the jig in the marking method shown in FIG. 5 forms on the preview screen. It is a figure which shows the movement locus which the jig in the marking method shown in FIG. 5 forms on the preview screen. It is a figure which shows the structure of the light box based on another embodiment of this invention. It is a figure which shows the structure of the light box based on another embodiment of this invention.

FIG. 3 is a diagram showing a structure of a spindleless turntable based on an embodiment of the present invention. As shown in FIG. 3, the spindleless turntable 100 includes, for example, a base portion 210, a disk 110, a drive mechanism 120, and two marking devices 140a and 140b. In this embodiment, the base portion 210 can have a top surface 212 and an opening 214 formed on the top surface 212. The disk 110 may be a single-layer or multi-layer translucent disk made of, for example, a translucent glass, a transparent glass, a translucent plastic, a transparent plastic, or the like, and is installed in the opening 214. By installing a bottom light (not shown in the figure) inside the base portion 210, uniform light rays can be provided from below the disk 110. Here, the bottom light comprises, for example, a package of a plurality of light emitting diodes (LEDs) in an array array, strips, light boards or tubular lights.

The drive mechanism 120 includes, for example, two holding portions 122 and 124 and a motor 126. Here, these holding portions 122 and 124 hold the peripheral edge of the disk 110 from both opposite sides of the disk 110, and the motor 126 is installed on one of the holding portions 122 to move the disk 110 from the peripheral edge. It is used to rotate the spindleless turntable 100 around the center of rotation. The marking devices 140a and 140b are installed, for example, on the top surface 212 and on the front side and the right side of the disk 110, respectively, and are used to emit upright linear rays 142a and 142b, and the rays 142a and 142b are installed. It is irradiated on the plate surface 112 of the disk 110 to form an intersection, and is superposed on the rotation center located on the plate surface 112. Further, in other undisplayed embodiments, the drive mechanism may include two motors, and one motor may be installed on each holding portion. Alternatively, the drive mechanism may include three or more holdings, which may hold the disc from different directions of the periphery, for example, and the motor may be mounted on at least one of the holdings. ..

In this embodiment, magnets are provided at the bottoms of the marking devices 140a and 140b, respectively, and the mounting position of the base portion 210 corresponding to at least the marking devices 140a and 140b is a ferromagnetic material such as iron, cobalt, nickel, and neodium. ), Which allows the user to quickly install the marking devices 140a and 140b around the disk 110 using magnetic attraction, as well as easily fine-tune their direction and position. However, in other embodiments, the marking devices 140a and 140b are at least one set of engaging members such as magnets, hooks, snaps and hook-and-loop fasteners, fastening members such as screws, bolts, fastening holes, slots, etc. A combination thereof may be used to be installed around the disk 110.

Further, when the marking devices 140a and 140b are installed around the disk 110, their heights are both slightly higher than the height of the disk surface 112. Therefore, in the process of placing the subject 300 on the board surface 112, the light beam 142a of the marking device 140a not only irradiates the front surface of the subject 300 but also continuously passes between the subject 300 and the disk 110. Then, it is irradiated on the board surface 112, and the intersection of the two light rays 142a and 142b is also continuously irradiated on the center of rotation. In other words, in the process of placing the subject 300, the user can rotate the subject 300 by the intersection of the light rays 140a and 140b irradiating on the board surface 112 and the marks radiated on the front surface and the right side surface of the subject 300. It is possible to repeatedly judge whether or not it is adjusted to the position of.

Further, in other undisplayed embodiments, the disk may be an impermeable disk, and the base portion may not be provided with a bottom light. Further, in other undisplayed embodiments, the spindleless turntable may not include a base portion. In this case, the drive mechanism is fixedly installed on the installation surface such as the desk surface or the floor surface, the disk above the installation surface can be moved and rotated, and the marking device is also fixedly installed on the installation surface. In addition, the spindleless turntable contains only one marking device used to irradiate a single spot or cross ray, and the center point of the spot ray or the intersection of the cross rays is directly on the center of rotation. It may be irradiated so that the user can confirm it.

FIG. 4 is a diagram showing a structure of a light box based on an embodiment of the present invention. As shown in FIG. 4, simply put, the spindleless turntable 100 as shown in FIG. 3 can further form a lightbox 200a together with a backlight 220 installed behind the disk 110. Similarly, the interior of the backlight 220 comprises, for example, a plurality of LED packages in an array array, banded lights, lightboards or tubular lights to provide uniform light rays from behind the disc 110 and subject 300. Further, as in the previous embodiment, in this embodiment, in the step of placing the subject 300 on the board surface 112, the light beam 142a of the marking device 140a is on the front surface of the subject 300, on the board surface 112, and on the backlight 220. The light beam 142b of the marking device 140b is continuously irradiated on the right surface of the subject 300 and on the board surface 112, and the intersection of the light rays 142a and 142b is also continuously irradiated on the center of rotation. Therefore, in the process of placing the subject 300, the user also adjusts the subject 300 to the position of the center of rotation by the intersection of the light rays 140a and 140b irradiating on the board surface 112 and the mark radiated on the surface of the subject 300. It is possible to repeatedly judge whether or not it has been done.

Further, in other undisplayed embodiments of the present invention, the light box includes a front light installed directly in front of the base portion, left front and / or right front, and side lights installed on both left and right sides of the base portion. By further including the top light installed above the base portion, it is possible to provide uniform light rays from the front, left and right sides, and above the subject. Moreover, since the top surface of the base portion and the disk are both translucent or transparent, it is possible to provide more uniform light rays from the bottom portion of the subject.

5 is a flowchart of the marking method based on the embodiment of the present invention, FIGS. 6 to 8 are diagrams showing the operation of the marking method shown in FIG. 5, and FIGS. 9 to 10 are the marking methods shown in FIG. It is a figure which shows the movement locus formed by the jig in the preview screen. First, see FIGS. 5 and 6. The marking method proposed by the present invention includes the following steps. First, as shown in step S100, the display device 500 marks the preview screen 410 of the fixed imaging device 400, and the preview screen 410 includes at least the central region of the board 112 and the jig 600 mounted on the board 112. ..

In this embodiment, the fixed photographing apparatus 400 captures a digital image of a mobile phone, a tablet terminal, a digital camera, a webcam, a digital video camera, or the like, which is stably installed on one side of a spindleless turntable 100 by, for example, a stand 420. An electronic device capable of photographing, the display device 500 is, for example, a screen of a mobile phone, a tablet terminal, or a computer, and the jig 600 is, for example, white paper on which an identification mark 610, which is a reference point, is printed. However, in other undisplayed embodiments, the fixed imaging device may be stably installed directly above the spindleless turntable, and the display device may be a display screen on the fixed imaging device, and the jig may be used. Is another reference object consisting of multiple reference objects of linear, circular, arcuate, annular or other geometric shape, or having one or more identification marks, which are reference points, references. It includes, but is not limited to, clear reference marks or features such as line segments, endpoints, and edges.

Subsequently, as shown in steps S110 and FIG. 7, the spindleless turntable 100 moves and rotates the jig 600, and in the preview screen 410 based on the movement locus formed by the jig 600 in the preview screen 410. A reference center C corresponding to the center of rotation is defined. In one embodiment of the present invention, in the method in which the jig 600 forms a movement locus in the preview screen 410, the preview screen 410 displayed on the display device 500 by computer software is first displayed in the rotation process of the jig 600. Capture one or more times, or shoot once or multiple times with the fixed imaging device 400, and acquire one or more captured images. Then, one or more captured images are superimposed on the preview screen 410 and displayed on the display device 500. In this way, images of at least two jigs located in different directions in the preview screen 410 can be acquired. Then, based on the movement locus of these jig images on the preview screen 410, the reference center C corresponding to the rotation center in the preview screen 410 is defined.

For example, in the method in which the jig 600 forms a movement locus in the preview screen 410, one captured image is first captured, and at this time, as shown in FIG. 6, the jig image 600a is, for example, the display device 500. It is displayed in the upper right corner. Subsequently, as shown in FIG. 7, the spindleless turntable 100 is rotated by 180 degrees by moving the jig 600, and the previously captured image and the preview screen 410 at this time are superimposed and displayed on the display device 500. .. At this time, the jig image 600a in the captured image is still displayed in the upper right corner on the display device 500, and the jig image 600b in the preview screen 410 is displayed in the lower left corner of the display device 500, for example. At this time, the intermediate point between the identification mark 610a on the jig image 600a and the identification mark 610b on the jig image 600b becomes the reference center C corresponding to the rotation center in the preview screen 410.

Simply put, as shown in FIGS. 6, 9 and 10, the spindleless turntable 100 moves the jig 600 to rotate around the center of rotation, so that any image on the jig image and the identification mark image can be used. The reference point also forms various movement loci around the reference center C in the preview screen 410 based on the distance to the rotation center, the rotation angle thereof, and the quantity of captured images.

For example, if the identification mark is circular and its center of rotation is located exactly on the center of rotation, the image of the entire identification mark will have a movement trajectory of 9-1 no matter how many times it rotates. It is circular as shown. On the other hand, when the identification mark is deviated from the center of rotation and the rotation angle is smaller than 360 degrees, the identification mark image is also rotated by the same angle around the center of rotation and becomes 9-2, 9-4 and 9-6. As shown, even if the identification mark is circular, linear or other shape, the movement locus of any reference point P is arcuate. If the identification mark deviates from the center and rotates 360 degrees, the identification mark also rotates 360 degrees around the center of rotation, and as shown in 9-3, 9-5 and 9-7, the identification mark is Even if it is circular, linear, or other shape, the movement locus of any reference point P is circular or annular.

Alternatively, in other embodiments, the identification mark may consist of a plurality of marks or features of arbitrary shape, in which case the movement locus may consist of a circle, arc or ring. In addition, in other embodiments, in order to allow the user to distinguish the captured image from the preview screen, the transparency of the captured image is first adjusted, and the latter half of the transparent captured image and the preview screen are superimposed. Further includes displaying on a display device. For example, as shown in FIG. 10, in one embodiment of the present invention, the jig may consist of three coins of different sizes, or may be white paper on which three circular identification marks are printed. However, the jig is placed at a position deviated from the center of rotation, and has three circular identification mark images 610c, 610d, and 610e deviated from the reference center C as shown in 10-1 in the preview screen. Subsequently, the spindleless turntable is rotated 360 degrees by moving the jig, and the preview screen is captured multiple times and its transparency is adjusted. After that, these semi-transparent captured images and the preview screen are superimposed and the display device. Displayed above, the movement loci of these identification mark images 610c, 610d and 610e form a plurality of concentric circles centered on the reference center C in the preview screen as shown in 10-2.

After defining the reference center C, as shown in steps S120 and FIG. 8, the marking devices 140a and 140b irradiate the light rays 142a and 142b toward the board surface 112, and the irradiation directions of the 410 rays 142a and 142b are determined through the preview screen. By adjusting, the ray images 144a and 144b in the preview screen 410 of the rays 142a and 142b pass through the reference center C. In this way, as shown in FIGS. 3 and 4, thereafter, only by activating the marking devices 140a and 140b, the user can use the intersection of the light rays 142a and 142b on the board surface 112 in the process of placing the subject 300. It is possible to repeatedly determine whether or not the subject 300 is aligned with the center of rotation by the marks radiating on the front surface and the right surface of the subject 300.

However, the marking method shown in FIG. 5 is not only used for marking the center of rotation of the spindleless turntable 100 as shown in FIGS. 6 to 8, but also the spindleless turn in the light box 200a shown in FIG. It is also used to indicate the center of rotation of the table 100. Further, in other embodiments, the number of marking devices may be one or more, and they are installed around the disk in the light box and irradiate light rays from different directions toward the board surface, and these light rays are on the board surface. It is irradiated to form an intersection and overlaps with the center of rotation located on the board surface. Here, the light rays emitted by these marking devices may be spot rays, linear rays, circular rays, annular rays, polyhedron rays, cross rays, or a combination thereof.

11 and 12 are diagrams showing the structure of a lightbox based on another embodiment of the present invention, respectively. Here, the front side plate, the left side plate, and the ceiling plate are all drawn with broken lines to indicate the internal structure of the light box. Briefly, compared to the light box 200a shown in FIG. 4, the light box 200b shown in FIG. 11 further includes a front side plate 230, a left side plate 240, a right side plate 250 and a ceiling plate 260, but the marking devices 140a and 140b. Are installed on the leading edge and the right edge, respectively, or on the upper edges of the front side plate 230 and the right side plate 250, respectively, so that they stand upright from the front upper side and the upper right side toward the board surface 112, respectively. Fire 142a and 142b. Alternatively, the marking devices 140a and 140b may be installed on the lower edges of the front side plate 230 and the right side plate 250, respectively, and as in FIG. 4, linear rays 142a and 142b that stand upright from the front and the right toward the board surface 112, respectively. Fire. Similarly, in this embodiment, the light rays 142a and 142b are irradiated on the board surface 112 to form an intersection and overlap with the rotation center located on the board surface 112. In addition, as compared with the lightbox 200b shown in FIG. 11, the lightbox 200c shown in FIG. 12 can include only the marking device 140c, and the marking device 140c is installed in the center of the ceiling plate 260. , The cross ray 142 is irradiated from directly above the spindleless turntable 100 toward the board surface 112.

To summarize the above contents, regarding the spindleless turntable provided by the present invention and the light box of this spindleless turntable, the marking device is installed on one side of the disk, and the disk as described in the prior art. It is not installed directly above or above the front and above the right. Therefore, in the process of placing the subject, especially when the subject is located directly above the center of rotation and very close to the board surface, the light rays still pass between the subject and the disk and are irradiated on the board surface. The center of rotation is continuously displayed so that the person can see it. This eliminates the need for the user to worry about the problem of not finding the center of rotation when placing the subject. Further, regarding the marking method provided by the present invention, when the spindleless turntable moves and rotates the disk, the jig on the disk surface needs to rotate around the center of rotation, and therefore, any feature on the jig. The center of rotation can be accurately indicated by the movement trajectory in the preview screen using. Moreover, such a marking method can be applied not only to various marking devices in the market, but also the mounting position of the marking device is not limited.

The present invention has disclosed embodiments as described above, but this is not a limitation of the present invention, and any person having ordinary knowledge in the technical field does not depart from the spirit and domain of the present invention. Various changes and colors can be added within. Therefore, the scope of protection of the present invention is based on the content specified in the claims.

10 Translucent board surface 20a, 20b, 140a, 140b, 140c Marking device 22a, 22b, 142a, 142b, 142c Ray 144a, 144b Ray image 30, 300 Subject 100 Spindleless turntable 110 Disc 112 Board surface 120 Drive mechanism 122, 124 Department
126 Motor 200a, 200b, 200c Light box 210 Base 212 Top surface 214 Aperture 220 Backlight 230 Front side plate 240 Left side plate 250 Right side plate 260 Ceiling plate 400 Fixed image shooting device 410 Preview screen 420 Stand 500 Display device 600 Jig 600a, 600b Jig image 610 Identification mark 610a, 610b, 610c, 610d, 610e Identification mark image
S100, S110, S120, S130 Flowchart C Criteria center
P reference point

Claims (20)

A marking method used to mark the center of rotation of a spindleless turntable.
(A) A step of displaying a preview screen of the fixed photographing device by a display device, and the preview screen includes at least a central region of the board surface of the spindleless turntable and a jig placed on the board surface.
(B) The jig is rotated by driving the spindleless turntable, and a reference center corresponding to the rotation center is defined in the preview screen based on the movement locus formed by the jig in the preview screen. Steps to do and
(C) A step of irradiating the board surface with a light ray by at least one marking device and causing the light ray displayed in the preview screen to pass through the reference center.
Marking method including. The marking method according to claim 1, wherein the jig has at least one reference point, at least one reference line segment, or a combination thereof. In step (b), the preview screen is captured at least once in the rotation process of the jig to acquire at least one captured image, and the captured image and the preview screen are superimposed by superimposing the captured image. The marking method according to claim 1, further comprising forming the movement locus in the preview screen. In step (b), the preview screen is first captured to acquire the first position of the jig in the captured image, and then the jig is rotated 180 degrees by driving the spindleless turntable. The marking according to claim 3, comprising acquiring a second position in the captured image of the jig and further defining the reference center based on an intermediate point between the first position and the second position. Method. The marking method according to claim 3, wherein step (b) first adjusts the transparency of the captured image, and then superimposes the translucent captured image and the preview screen. The step (b) further includes capturing the preview screen a plurality of times in the rotation process of the jig to acquire a plurality of captured images, and superimposing the captured images to form the moving locus. , The marking method according to claim 1. The marking method according to claim 1, wherein the movement locus is a circular locus, an arc-shaped locus, a circular locus, or a combination thereof. The marking method according to claim 1, wherein the fixed imaging device photographs the preview screen from one side or above of the spindleless turntable. The marking method according to claim 1, wherein the marking device irradiates the light beam toward the board surface from at least one of at least one side of the spindleless turntable, above and directly above the at least one side. A spindleless turntable used to move a subject and rotate it around the center of rotation of the spindleless turntable.
A disk with a board surface and
A drive mechanism that moves the disk from the peripheral edge of the disk and rotates it around the center of rotation.
At least one marking device installed on the peripheral edge and used to irradiate a light beam toward the board surface, and in the process of placing the subject on the board surface, the light ray is between the subject and the disk. And a marking device that illuminates the center of rotation located on the board surface
Spindleless turntable including. The drive mechanism is
At least one driven unit that abuts on the disk from one side of the periphery,
At least one drive unit that abuts on the disk from another side of the peripheral edge and at the same time moves the disk to rotate about the center of rotation.
10. The spindleless turntable according to claim 10. 13. The described spindleless turntable. The spindleless turntable according to claim 10, wherein the light beam is a spot ray or a cross ray, and the center point of the spot ray or the intersection of the cross rays is applied to the rotation center located on the board surface. 10. The 10. Spindleless turntable. The spindleless turntable according to claim 10, wherein the marking device is fixedly installed on the peripheral edge by a magnetic element, an engaging member, a fastening member, or a combination thereof. A claim that further comprises a base portion, wherein the base portion has an opening formed on the top surface and the top surface, the marking device is installed on the top surface, and the disk is installed in the opening. Item 10. Spindleless turntable according to item 10. The spindleless turntable according to claim 10, further comprising a bottom light, wherein the disk is a translucent disk, and the bottom light is installed below the translucent disk. The spindleless turntable according to claim 17, wherein the material of the translucent disk is translucent glass, transparent glass, translucent plastic, transparent plastic or a combination thereof. The spindleless turntable according to claim 10,
A base portion having a top surface, an opening formed on the top surface, and a bottom light, wherein the marking device is installed on the top surface, and the disk is a translucent disk and is installed in the opening. Further, the bottom light has a base portion installed on the top surface and below the translucent disk.
The backlight installed behind the disk and
Including the lightbox. 19. The 19. light box.

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