KR101002914B1 - Method for processing hologram pattern, and hologram pattern processing apparatus - Google Patents

Abstract

A hologram pattern generating method and processing method, and a hologram pattern generating device and processing device using the same are provided. According to the hologram pattern generating method, a Fourier transform is applied by converting data into a two-dimensional image, and a final image is generated by performing quantization on an original image calculated using phase information. Accordingly, the hologram pattern can be directly processed, and data can be stored more easily and simply, and the cost of the system can be simplified by simplifying the configuration of the system.

Hologram, ID tag, CGH

Description

Holographic pattern processing method, and hologram pattern processing apparatus using the same {Method for processing hologram pattern, and hologram pattern processing apparatus}

The present invention relates to a hologram pattern generating method and processing method, and a hologram pattern generating device and processing apparatus using the same, and more particularly, to convert the data into a hologram pattern using the CGH technology, and then to record the ID tag It relates to a holographic pattern generating method and processing method, and a holographic pattern generating device and processing apparatus using the same.

In general, a hologram is a recording of an interference pattern on a photosensitive material by interfering reflected light (object light) from an object and direct light (reference light) from an object using laser light having good coherence. Such holograms are called interferometer based holograms.

An interferometer based hologram is a laser beam divided into two, one side of the object to record and the other side directly to the photo plate to record the interference information of the two beams on the photo plate. The hologram can record the phase along with the amplitude with respect to the picture recorded with only the amplitude, so that the recording and reproduction of the three-dimensional image is possible. This is due to the fact that the phase has perspective information.

However, since such interferometer-based holograms have a problem that their stability is poor because they are sensitive to environmental factors such as external vibration, dust, and temperature change, a method for recording hologram patterns directly on a recording medium has been devised.

As such, as a method for directly recording a hologram pattern without using an interferometer-based method, a lithography method and a perforation method may be used. However, in the case of the lithography method, when the production process is complicated and a large equipment is used, it is difficult to produce tags having different information in real time.

Accordingly, a method for directly recording holographic patterns in real time using CGH (Computer Generated Hologram) without using an interferometer based method, a lithography method, and a puncturing method is sought.

The present invention has been made to solve the above problems, and an object of the present invention is to generate a hologram pattern without using an interferometer-based technology, and to generate a hologram pattern for recording data on a hologram ID tag in real time. And a processing method, and a hologram pattern generating device and a processing device using the same.

According to the present invention for achieving the above object, a holographic pattern generating method comprising the steps of: converting the input data into a two-dimensional image; Applying a Fourier transform to the two-dimensional image; Calculating a hologram pattern generated when the object light and the reference light interfere using the phase information of the two-dimensional image to which the Fourier transform is applied; Generating an original image corresponding to the calculated hologram pattern; And quantizing the original image to generate a final image for the hologram pattern.

The final image generating step may generate a final image of the hologram pattern by adjusting an amplitude value of the quantized original image to minimize reproduction error after quantizing the original image.

On the other hand, the holographic pattern processing method according to an embodiment of the present invention for achieving the above object, based on the image for the holographic pattern, modulating the light; Irradiating the modulated light to at least one ID tag attached to an ID tag fixing device; And processing the hologram pattern on the ID tag while rotating the ID tag fixing device or rotating the direction in which the modulated light is irradiated.

Here, in the processing step, a hologram pattern is applied to the ID tag while moving the direction in which the modulated light is irradiated in a direction of an axis set to rotate the ID tag fixing device or to rotate the direction in which the modulated light is irradiated. It can be processed.

In addition, the axis may be a central axis of the ID tag fixing device.

The ID tag fixing device has a circular shape, and the ID tag may be attached to the inner side or the outer side of the ID tag fixing device.

In addition, when the ID tag is attached to the outer surface of the ID tag fixing device, the light source device for emitting the modulated light is provided outside the ID tag fixing device, the ID tag of the ID tag fixing device When attached to the inner surface, the light source device for emitting the modulated light may be provided inside the ID tag fixing device.

And, when the ID tag is attached to the inner surface of the ID tag fixing device, the modulated light is reflected by the reflector provided in the drive device for rotating the direction in which the modulated light is irradiated and irradiated with the ID tag Can be.

Further, in the processing step, when the ID tag is attached to the outer surface of the ID tag fixing device, the ID tag fixing device rotates about the central axis of the ID tag fixing device, the ID tag is the ID tag When attached to the inner surface of the fixing device, the direction in which the modulated light is irradiated may rotate with respect to the central axis of the ID tag fixing device.

In the processing step, the modulated light may be irradiated to a plurality of ID tags to simultaneously process a plurality of holographic patterns.

In the modulating step, the image of the hologram pattern may be divided into rows and converted into a serial signal, and the light may be modulated based on the image converted into the serial signal.

On the other hand, the hologram pattern generating apparatus according to an embodiment of the present invention for achieving the above object, the interface for receiving data; And a hologram generated when the data input through the interface is converted into a 2D image, a Fourier transform is applied to the 2D image, and the phase information of the 2D image to which the Fourier transform is applied is used to interfere with reference light. And a controller configured to calculate a pattern, generate an original image of the calculated holographic pattern, and quantize the original image to generate a final image of the holographic pattern.

Here, the control unit may generate a final image of the hologram pattern by adjusting the amplitude value of the quantized original image to minimize reproduction error after quantizing the original image.

On the other hand, the holographic pattern processing apparatus according to an embodiment of the present invention for achieving the above object, the light source unit for irradiating the modulated light; A light source driving unit driving the light source unit; An ID tag fixing device for attaching at least one ID tag; And a controller configured to control the light source unit to modulate light based on the image of the hologram, wherein the controller is configured to rotate the ID tag fixing device or to rotate the direction in which the modulated light is irradiated. The hologram pattern may be processed on the ID tag.

Herein, the control unit controls the light source driving unit so that the direction in which the modulated light is irradiated is moved in a direction of an axis set to rotate the ID tag fixing device or the direction in which the modulated light is irradiated. Hologram patterns can be processed on ID tags.

The axis may be a central axis of the ID tag fixing device.

In addition, the ID tag fixing device has a circular shape, and the ID tag may be attached to the inner side or the outer side of the ID tag fixing device.

And, when the ID tag is attached to the outer surface of the ID tag fixing device, the light source unit is provided on the outside of the ID tag fixing device, when the ID tag is attached to the inner surface of the ID tag fixing device, The light source unit may be provided inside the ID tag fixing device.

In addition, when the ID tag is attached to the inner surface of the ID tag fixing device, the rotation drive unit for rotating the direction in which the modulated light is irradiated and reflects the modulated light to be irradiated to the ID tag; The light emitted from the light source unit may be reflected by the reflector provided in the rotation driver to be irradiated with the ID tag.

The controller may be configured to rotate the ID tag fixing device about the central axis of the ID tag fixing device when the ID tag is attached to an outer surface of the ID tag fixing device, and wherein the ID tag is the ID tag. When attached to the inner side of the fixing device, the direction in which the modulated light is irradiated with respect to the central axis of the ID tag fixing device may be rotated.

The controller may be configured to irradiate the plurality of ID tags with the modulated light so that a plurality of holographic patterns may be simultaneously processed.

The controller may separate the image of the hologram pattern into rows and convert the image into a serial signal, and allow the light to be modulated based on the image converted into the serial signal.

Accordingly, the hologram pattern is calculated using the interferometer-based technology, and the hologram pattern generated by the interference between the object light and the reference light is generated and recorded directly according to the calculated result. It can simplify the configuration and reduce the cost. In addition, since it does not use the interferometer-based technology, there is an effect that less influenced by environmental factors such as external vibration, dust, temperature change, and the like.

Hereinafter, with reference to the drawings will be described the present invention in more detail.

1 is a block diagram of a hologram recording apparatus 100 according to an embodiment of the present invention. The hologram recording device 100 applies a Fourier transform by converting the input data into a two-dimensional image, calculates a hologram pattern using the phase information of the two-dimensional image to which the Fourier transform is applied, and corresponds to the calculated hologram pattern. After generating the original image and quantizing it, a final image of the hologram pattern is generated. In addition, the hologram recording device 100 modulates the light based on the image of the hologram pattern, moves the modulated light and irradiates the ID tag to process the hologram pattern.

As illustrated, the hologram recording device 100 may include a data interface 110, a control unit 120, a storage unit 130, a light source driver 140, a light source unit 150, a tag fixing device driver 160, and a tag. The fixing device 170 and the sensing unit 180 are provided.

The data interface 110 is connected to communicate with an external data storage device or an external data providing device in accordance with a predetermined communication scheme. That is, the hologram recording device 100 receives data from an external data storage device or an external data providing device through the data interface 110. Data input through the data interface 110 is input to the controller 120.

The control unit 120 controls the first half of the hologram recording device 100 so that the hologram recording device 100 generates and processes the hologram pattern.

First, the controller 120 converts the data received through the data interface 110 into a 2D image, and performs a process such as Fourier transform, kinoform transform, quantization, and optimization on the converted 2D image. As a result, the final image of the hologram pattern to be recorded in the hologram ID tag is generated. A detailed description thereof will be described later with reference to FIGS. 2 and 3.

In addition, the controller 120 modulates light based on the final image of the generated holographic pattern, and controls the light source driver 140 to be described later so that the modulated light is irradiated to the hologram ID tag while moving in the vertical direction. At this time, the controller 120 controls the tag fixing device driver 160 for driving the tag fixing device 170 to which the hologram ID tag is attached, such that the hologram ID tag is moved in the horizontal direction. As a result, the hologram pattern is processed and data is recorded in the hologram ID tag. A detailed description thereof will be described later with reference to FIGS. 4 to 7.

Meanwhile, the storage 130 stores data received through the data interface 110 and various programs for operating the hologram recording device 100. The storage unit 130, flash memory, HDD may be implemented in various storage media.

The light source driver 140 drives the light source unit 150 under the control of the controller 120. The light source driver 140 generates a driving signal for driving the light source unit 150 and transmits the generated driving signal to the light source unit 150. In addition, the light source driver 140 allows the light emitted from the light source unit 150 to vertically move and irradiate the hologram ID tag.

The light source unit 150 generates light modulated based on the drive signal input from the light source driver 140, and emits the generated light to irradiate the hologram ID tag.

The tag fixing device driver 160 drives the tag fixing device 170 under the control of the controller 120. The tag fixing device driver 160 generates a driving signal for driving the tag fixing device 170 and transmits the driving signal to the tag fixing device 170.

The tag fixing device 170 operates based on a driving signal input from the tag fixing device driving unit 160. In addition, the tag fixing device 170 provides a space for attaching one or more hologram ID tags, and fixes the hologram ID tag so that light is precisely irradiated to the attached hologram ID tag. The tag fixing device 170 may have a cylindrical or cylindrical shape having an empty upper and lower surfaces. In this case, the tag fixing device 170 is provided with a space on which the hologram ID tag is to be attached on the inner side of the strip or the outer side of the strip.

The detector 180 detects an operation of the hologram ID tag attached to the tag fixing device 170 and transmits the detected result to the controller 120. Accordingly, the control unit 120 generates a control signal based on the detected result and transmits the control signal to the tag fixing device driver 160, and the tag fixing device driver 160 is configured based on the received control signal. By generating a driving signal for driving 170 and transmitting to the tag fixing device 170, the correct hologram pattern is generated in the hologram ID tag.

As described above, according to the hologram recording apparatus 100 according to an embodiment of the present invention, since a hologram pattern is generated and recorded directly without generating a hologram pattern using an interferometer-based technology, The configuration can be simplified and the cost can be reduced.

In the above, it is assumed that the hologram recording apparatus 100 may generate a hologram pattern and process the hologram pattern together with the hologram recording apparatus 100. However, even when the hologram pattern generating apparatus and the hologram pattern processing apparatus are implemented as separate devices, The technical idea can be applied as it is. For example, in the case of the generating device for generating the hologram pattern, it may be implemented to be composed of the data interface 110, the control unit 120 and the storage unit 130 described above, a processing device for processing the hologram pattern For example, the controller 120, the light source driver 140, the light source unit 150, the tag fixing device driver 160, the tag fixing device 170, and the sensing unit 180 may be implemented.

Meanwhile, in the above, the controller 120 converts the data received through the data interface 110 into a 2D image, and performs a process such as Fourier transform, kinoform transform, quantization, and optimization on the converted 2D image. As described above, the final image of the hologram pattern to be recorded in the hologram ID tag is generated. Hereinafter, the above-described hologram pattern generating method will be described in detail with reference to FIGS. 2 and 3.

2 is a flowchart illustrating a holographic pattern generating method according to an embodiment of the present invention, and FIG. 3 is a diagram illustrating a process of generating a holographic pattern.

First, as illustrated in FIG. 2, when data in a digital format is received from an external data storage device or an external data providing device through the data interface 110, the controller 120 transmits the received data in two dimensions. Arrange (S210). The two-dimensional arrangement depends on the size preset by the user. As an example of this, in FIG. 3, data 310 having a two-dimensional form in which data are arranged in 15 * 15 is illustrated.

The controller 120 converts the two-dimensional data 310 into a two-dimensional image (S220). Since the two-dimensional data 310 is composed of '0' and '1', the controller 120 converts '0' into a black image and '1' into a white image, as shown in FIG. 3. It is possible to generate a two-dimensional image 320 as shown.

Thereafter, the controller 120 applies a Discrete Fourier Transform (DFT) to the two-dimensional image 320 (S230).

On the other hand, unlike the interferometer based method of inducing and recording the interference fringe by interfering the reference light and the object light with respect to the DFT applied image, in the present embodiment, the hologram pattern is adjusted by adjusting the output of the light without using the interferometer based method. Because we directly process, we need additional processing to produce the same effect as the interferometer based method. To this end, in this embodiment, the information about the amplitude is treated as a constant, and uses a Kinoform transformation method that represents only phase information. Accordingly, the control unit 120 calculates a hologram pattern generated when the reference light and the object light interfere using the phase information of the two-dimensional image to which the DFT is applied, and generates an original image corresponding to the calculated hologram pattern ( S240). In FIG. 3, the original image 330 in which the DFT and the kinoform transformation are performed on the two-dimensional image 320 is illustrated.

Since the original image 330 on which the DFT and kinoform transformation is performed has analog amplitude information for each pixel, it is difficult to express the amplitude as a continuous value. Therefore, the hologram pattern generating method according to the present embodiment performs quantization on the amplitude value of each pixel of the original image 330 (S250). The degree of quantization depends on the size preset by the user. As an example, FIG. 3 illustrates an image 340 in which the original image 330 is quantized in two steps.

When the quantization process is performed, when reproducing the hologram data stored in the hologram ID tag, distortion occurs in the diffraction pattern, which may cause an error. In order to prevent this, the controller 120 performs an optimization process of converting the image 340 in the quantized state so that the reproduction error is minimized during reproduction by appropriately adjusting the amplitude value of each pixel (S260). 3 shows a final image 350 in which the image 340 in the quantized state is optimized.

The final image 350 of the hologram generated through this process is recorded in the hologram ID tag. Thus, the hologram pattern is calculated based on the calculated result by calculating the hologram pattern generated when the object light and the reference light interfere. By recording directly, the configuration of the device can be simplified.

In the above, it is assumed that the optimization process (S260) is involved in order to generate the final image 350 of the hologram, but this is merely an example for convenience of explanation. Therefore, even if the optimization process (S260) is not accompanied, of course, the technical spirit of the present invention can be applied as it is.

Meanwhile, in the above, in order to process the hologram pattern, light is modulated based on the final image 350, and the modulated light is irradiated to the hologram ID tag while being moved in the vertical direction, and the hologram ID tag is moved in the horizontal direction. It has been described above. Hereinafter, the holographic pattern processing method described above will be described in detail with reference to FIGS. 4 to 7.

In particular, Figures 4 and 5 is a view for explaining the holographic pattern processing method when the hologram ID tag is attached to the outer surface of the tag fixing device 170, Figure 6 and Figure 7 is a hologram ID tag tag fixing device It is a figure for demonstrating the hologram pattern processing method at the time of being attached to the inner side surface of 170. As shown in FIG. Therefore, hereinafter, the hologram pattern processing method in the case where the hologram ID tag is attached to the outer surface of the tag fixing device 170 will be described first with reference to FIGS. 4 and 5, and with reference to FIGS. 6 and 7. , The holographic pattern processing method when the hologram ID tag is attached to the inner surface of the tag fixing device 170 will be described.

4 is a flowchart provided to explain a method of processing a hologram pattern on a hologram ID tag attached to an outer surface of the tag fixing device.

Referring to FIG. 4, the controller 120 modulates the light based on the final image 350 in order to irradiate the hologram ID tag with the light (S410). The modulated light is irradiated to the hologram ID tag attached to the tag fixing device 170 (S420).

On the other hand, the tag fixing device 170 has been described above that the inside and the upper and lower surfaces can be a cylindrical or cylindrical shape. The tag fixing device driver 160 is configured such that the tag fixing device 170 is positioned around the center of the tag fixing device 170 so that modulated light is sequentially irradiated from the left to the right or the right to the left of the region of the hologram ID tag. To rotate (S430).

In addition, the light source driver 170 allows the modulated light to move vertically in the axial direction of the tag fixing device 170 such that the modulated light is sequentially irradiated from above to below or below to above of the region of the hologram ID tag (S440). .

Here, the rotational motion of step S430 and the translational motion of step S440 are not performed in a state in which the order is not limited, the rotational motion of step S430 and the translational motion of S440 are performed together, or the rotational motion and the translational motion are performed at the intersection. Of course it can.

In this way, the modulated light is irradiated to the hologram ID tag is shown in FIG. FIG. 5 is a diagram illustrating a process of processing a hologram pattern on a hologram ID tag attached to an outer surface of a tag fixing device.

In FIG. 5, only a part of the configuration of the hologram recording apparatus 100 is shown to explain the state of irradiating modulated light.

The tag fixing device 170 is in the form of a circle, and the hologram ID tags 510 and 520 are attached to the outer surface of the tag fixing device 170. In addition, a tag fixing device driver 160 for driving the tag fixing device 170 is provided inside the tag fixing device 170, so that the tag fixing device 170 is provided by the tag fixing device driving unit 160. It is rotated about the central axis of the tag fixing device 170.

In addition, a light source unit 150 for irradiating the modulated light to the hologram ID tags 510 and 520 attached to the tag fixing unit 170 is provided outside the tag fixing unit, and the light source unit 150 is attached to the tag fixing unit. A light source driver 140 for vertically moving in the direction of the central axis of 170 is provided.

And, as shown, a plurality of hologram ID tag (510, 520) can be provided, it is possible to process a plurality of each holographic pattern at the same time.

On the other hand, in the above, it has been described that the rotational motion and the translational motion can be performed at the intersection, this description will be more easily understood with reference to the drawings shown in FIG. That is, as shown, from the upper left to the lower right of the hologram ID tag 510 to which the modulated light is irradiated, a translational motion must exist after one rotational movement so that the light is sequentially irradiated. It can be seen that after one translational motion, there must be a rotational motion.

Thereby, the hologram pattern can be processed more easily and simply.

In addition, in the above, it is assumed that the tag fixing device 170 is rotated with respect to the central axis of the tag fixing device 170 by the tag fixing device driving unit 160. However, the tag fixing device 170 is merely exemplary. In the case where the light source driver 140 and the light source unit 150 are rotated around the tag fixing device 170, the present invention may be applied.

6 is a flowchart provided to explain a method of processing a hologram pattern on a hologram ID tag attached to an inner side of a tag fixing device.

Referring to FIG. 6, the controller 120 modulates the light based on the final image 350 so that the light is irradiated to the hologram ID tag (S610). The modulated light is irradiated to the hologram ID tag attached to the tag fixing device 170 (S620).

On the other hand, as described above, since the tag fixing device 170 has a circular shape, the tag fixing device driving unit 160 receives and reflects modulated light, but the modulated light is left of the area of the hologram ID tag. Rotate itself so as to sequentially scan from the right or right to the left (S630).

In addition, the tag fixing device driver 160 moves vertically in the axial direction of the tag fixing device 170 so that the modulated light is sequentially irradiated from the upper side to the lower side or the lower side to the upper side of the region of the hologram ID tag (S640). ).

Here too, the rotational movement of the S630 stage and the translational movement of the S640 stage are not performed in a state in which the sequence is not in order, and the rotational movement of the S630 stage and the translational movement of the S640 stage are performed together, or the rotational movement and the translational movement are performed at the intersection. Of course it can be.

In this way, the modulated light is irradiated to the hologram ID tag is shown in FIG. FIG. 7 is a diagram illustrating a process of processing a hologram pattern on a hologram ID tag attached to an inner surface of a tag fixing device.

In Fig. 7, only a part of the configuration of the hologram recording device 100 is shown to explain the state of irradiating the modulated light.

The tag fixing device 170 is in a circular shape, and a hologram ID tag 510 is attached to an inner side surface of the tag fixing device 170. In addition, unlike FIG. 5, since the tag fixing device 170 is fixed, a separate tag fixing device driving unit is not provided, and the modulated light is vertically and horizontally disposed inside the tag fixing device 170. A rotary drive 710 is provided to move and irradiate.

On the other hand, the rotary drive unit 710 is connected to the reflector 720 for reflecting the light emitted from the light source unit 150 to the hologram ID tag 510. Accordingly, the rotation driving device 710 rotates the reflecting plate 720 about the central axis of the tag fixing device 170 or vertically moves in the direction of the central axis of the tag fixing device 170, thereby reflecting off the reflecting plate 720. The light is sequentially irradiated from the upper left to the lower right of the hologram ID tag 510. Here, the reflector 720 may be implemented as a mirror or a beam splitter.

Meanwhile, although one hologram ID tag 510 is provided in FIG. 7, a plurality of hologram ID tags 510 may be provided as in the case of FIG. 5, and each hologram pattern may be processed simultaneously.

On the other hand, it will be understood that the rotational and translational movements can be performed alternately with the drawings shown in FIG. 7. However, the difference from the case of FIG. 5 is that both the rotational motion and the translational motion are driven by the drive of the rotation drive device 710. Therefore, the hologram pattern can be processed more easily and simply by the hologram recording device 100 according to FIG.

In the above description, the reflecting plate 720 is rotated about the central axis of the tag fixing device 170 or vertically moved in the direction of the central axis of the tag fixing device 170, so that the light reflected by the reflecting plate 720 is holographic ID tag ( It is assumed that 510 is sequentially irradiated from the upper left to the lower right. However, this is only an example, and the reflecting plate 720 may be configured to perform the rotational movement while the tag fixing device 170 performs only the translational movement, or the reflecting plate 720 may perform only the rotational movement of the tag fixing device ( The technical concept of the present invention may be applied to the case where the 170 is implemented to perform the translational movement, or the tag fixing device 170 is configured to perform the translational movement and the rotational movement while the reflecting plate 720 is fixed. .

Meanwhile, in the above description, the tag fixing device has been described as having a circular shape, but the tag fixing device is not necessarily limited to a circular shape, and provides a space for attaching one or more hologram ID tags, thereby providing an attached hologram. If the hologram ID tag is fixed so that light is accurately irradiated onto the ID tag, the tag fixing device may be implemented in any shape.

Of course, in this case, for the problem that the trajectory of the light irradiated to the hologram ID tag does not become a linear trajectory by the tag fixing device not implemented in a circular shape, an apparatus or an optical path for correcting the optical trajectory such as a lens or a mirror This can be solved by using a device to calibrate. This may be more clearly understood with reference to the description of FIG. 9 to be described later.

In addition, in the above, it is assumed that the reflecting plate has a planar shape, but in order to irradiate light at various angles or in various ways, the reflecting plate may be implemented in a form other than a plane such as a polyhedron. And, it is a matter of course that a plurality of reflecting plates to change the path of the light in this way can be provided instead of one.

As such, the hologram recording apparatus may be implemented in various ways, and some specific embodiments are shown in FIGS. 8 and 9.

8 is a block diagram of a hologram recording device 800 according to an embodiment of the present invention. As illustrated, the hologram recording apparatus 800 includes a data interface 810, a controller 820, a storage 830, a light source driver 840, a light source 850, and a tag fixing device driver. 860, a tag fixing device 870, a detector 880, a light path controller driving unit 890, and a light path controller 895.

The data interface 810, the controller 820, the storage 830, the light source driver 840, the light source 850, the tag holder driver 860, the tag holder 870 and the detector illustrated in FIG. 8. The data interface 110, the controller 120, the storage 130, the light source driver 140, the light source 150, the tag holder 160, and the tag holder 170 shown in FIG. And the role of the sensing unit 180. Therefore, hereinafter, the light path control device driver 890 and the light path control device 895 will be described.

The optical path controller driving unit 890 and the optical path controller 895, under the control of the controller 120, move the path of the modulated light and irradiate the ID tag to process the hologram pattern. That is, the optical path controller driving unit 890 generates a driving signal for changing the optical path and transmits the driving signal to the optical path controller 895 according to a control command of the controller 120 for changing the optical path. The optical path controller 895 allows the modulated light path to be moved and irradiated to the ID tag based on the input drive signal. The optical path controller 895 may include a reflector or a refractive device composed of a mirror, a prism, a lens, or the like.

On the other hand, in the case of the rotary drive device 710 shown in Figure 7, it can be seen as a concept included in the optical path control device driver 890 according to the present embodiment, in the case of the reflector plate 720 shown in FIG. It may be seen as a concept included in the optical path control device 895 according to the present embodiment.

FIG. 9 is a diagram illustrating a process of processing a hologram pattern on a hologram ID tag according to a changed light path by controlling the light path.

As shown, the light 950 emitted from the light source device 900 is reflected from the polyhedral mirror 910, which is a kind of the light path control device 895, and is attached to the tag fixing device 940. Is investigated. In this case, the polyhedron mirror 910 is connected to the polyhedron mirror 910 and controlled by the optical path controller driving unit 920 to perform a rotational motion and a translational motion. According to the rotational and translational movements, the reflected light 952 reflected by the polyhedral mirror 910 may be irradiated to the ID tag 510.

Meanwhile, the light reflected by the polyhedral mirror 910 and irradiated to the ID tag 510 may be the arc trajectory 954 according to the angle at which the light is irradiated. In order to convert the light irradiated with the arc trajectory 954 into the linear trajectory 958, a refraction apparatus in the form of a lens, a prism or a mirror, which is a kind of the optical path controller 895, 930 is provided. In this case, when irradiation of one row of the ID tag 510 is completed, the tag fixing device 940 is moved vertically or the optical path control device 895 including the polyhedron mirror 910 and the refraction device 930. ) Are all moved in the vertical direction, so that irradiation of light to the next row can be started.

In the above, it is assumed that the light is irradiated to process the hologram pattern, but this is only a selection of terms for convenience of description, and the technical spirit of the present invention may be applied even when other terms such as laser are used. .

In addition, while the above has been shown and described with respect to preferred embodiments of the present invention, the present invention is not limited to the specific embodiments described above, the technology to which the invention belongs without departing from the spirit of the invention claimed in the claims Various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention.

1 is a block diagram of a hologram recording apparatus 100 according to an embodiment of the present invention;

2 is a flowchart illustrating a holographic pattern generating method according to an embodiment of the present invention;

3 is a diagram illustrating a process of generating a hologram pattern;

4 is a flowchart provided to explain a method of processing a hologram pattern on a hologram ID tag attached to an outer surface of a tag fixing device;

FIG. 5 is a diagram illustrating a process of processing a hologram pattern on a hologram ID tag attached to an outer surface of a tag fixing device; FIG.

6 is a flowchart provided to explain a method of processing a hologram pattern on a hologram ID tag attached to an inner side of a tag fixing device;

FIG. 7 is a diagram illustrating a process of processing a hologram pattern on a hologram ID tag attached to an inner side of a tag fixing device; FIG.

8 is a block diagram of a hologram recording device 800 according to an embodiment of the present invention, and

FIG. 9 is a diagram illustrating a process of processing a hologram pattern on a hologram ID tag according to a changed light path by controlling the light path.

Explanation of symbols on the main parts of the drawings

110: data interface 120: control unit

130: storage unit 140: light source driving unit

150: light source unit 160: tag fixing device driving unit

170: tag fixing device 180: detector

Claims (22)

delete delete Modulating the light based on the image for the hologram pattern; Irradiating the modulated light to at least one ID tag attached to an ID tag fixing device; And And processing the hologram pattern on the ID tag while rotating the ID tag fixing device or rotating the direction in which the modulated light is irradiated. The method of claim 3, wherein The processing step, Hologram pattern processing on the ID tag while rotating the ID tag fixing device or the direction in which the modulated light is irradiated in the direction of the axis set to rotate the direction in which the modulated light is irradiated Pattern processing method. The method of claim 4, wherein And said axis is a central axis of said ID tag fixing device. The method of claim 3, wherein The ID tag fixing device has a circular shape, And the ID tag is attached to an inner side or an outer side of the ID tag fixing device. The method of claim 6, When the ID tag is attached to the outer surface of the ID tag fixing device, the light source device for emitting the modulated light is provided outside the ID tag fixing device, And a light source device for emitting the modulated light when the ID tag is attached to an inner surface of the ID tag fixing device, wherein the light source device is provided inside the ID tag fixing device. The method of claim 6, When the ID tag is attached to the inner surface of the ID tag fixing device, the modulated light is reflected by the reflector provided in the driving device for rotating the direction in which the modulated light is irradiated to be irradiated to the ID tag Holographic pattern processing method characterized by the above-mentioned. The method of claim 6, The processing step, When the ID tag is attached to the outer surface of the ID tag fixing device, the ID tag fixing device rotates about the central axis of the ID tag fixing device, When the ID tag is attached to the inner surface of the ID tag fixing device, the direction in which the modulated light is irradiated, rotates about the central axis of the ID tag fixing device, characterized in that the hologram pattern processing method. The method of claim 3, wherein The processing step, And a plurality of holographic patterns are processed simultaneously by irradiating the modulated light to a plurality of ID tags. The method of claim 3, wherein The modulation step, And dividing the image of the hologram pattern into rows and converting the image into a serial signal, and modulating the light based on the image converted into the serial signal. delete delete A light source unit irradiating modulated light; A light source driving unit driving the light source unit; An ID tag fixing device for attaching at least one ID tag; And And a controller configured to control the light source unit to modulate light based on the image of the hologram pattern. And the controller is configured to rotate the ID tag fixing device or to rotate the direction in which the modulated light is irradiated, thereby processing the hologram pattern on the ID tag. 15. The method of claim 14, The control unit, A hologram pattern is applied to the ID tag while controlling the light source driver to move the modulated light irradiation direction in a direction of an axis set to rotate the ID tag fixing device or to rotate the direction in which the modulated light is irradiated. Holographic pattern processing apparatus characterized in that the processing. The method of claim 15, The axis is a holographic pattern processing apparatus, characterized in that the central axis of the ID tag fixing device. 15. The method of claim 14, The ID tag fixing device has a circular shape, The ID tag is a holographic pattern processing apparatus, characterized in that attached to the inner surface or the outer surface of the ID tag fixing device. The method of claim 17, When the ID tag is attached to the outer surface of the ID tag fixing device, the light source unit is provided outside the ID tag fixing device, And the light source unit is provided inside the ID tag fixing device when the ID tag is attached to an inner surface of the ID tag fixing device. The method of claim 17, And a rotation driving unit configured to rotate the direction in which the modulated light is irradiated and to reflect the modulated light to be irradiated to the ID tag when the ID tag is attached to an inner surface of the ID tag fixing device. , The light emitted from the light source unit is reflected by a reflector provided in the rotation drive unit holographic pattern processing apparatus, characterized in that irradiated with the ID tag. The method of claim 17, The control unit, When the ID tag is attached to the outer surface of the ID tag fixing device, the ID tag fixing device is rotated about the central axis of the ID tag fixing device, When the ID tag is attached to the inner surface of the ID tag fixing device, the holographic pattern processing apparatus characterized in that to rotate the direction in which the modulated light is irradiated with respect to the central axis of the ID tag fixing device. 15. The method of claim 14, The control unit, The modulated light is irradiated to a plurality of ID tags, hologram pattern processing apparatus characterized in that to process a plurality of holographic patterns at the same time. 15. The method of claim 14, The control unit, The holographic pattern processing apparatus of claim 1, wherein the hologram pattern is divided into rows and converted into a serial signal, and the light is modulated based on the image converted into the serial signal.

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