KR20170000237A - Three-dimensional Printer with apparatus which create digital hologram - Google Patents

Three-dimensional Printer with apparatus which create digital hologram Download PDF

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Publication number
KR20170000237A
KR20170000237A KR1020150089235A KR20150089235A KR20170000237A KR 20170000237 A KR20170000237 A KR 20170000237A KR 1020150089235 A KR1020150089235 A KR 1020150089235A KR 20150089235 A KR20150089235 A KR 20150089235A KR 20170000237 A KR20170000237 A KR 20170000237A
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South Korea
Prior art keywords
output
hologram
dimensional printer
image
dimensional
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KR1020150089235A
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Korean (ko)
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KR101953085B1 (en
Inventor
윤은기
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캐논코리아비즈니스솔루션 주식회사
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Priority to KR1020150089235A priority Critical patent/KR101953085B1/en
Publication of KR20170000237A publication Critical patent/KR20170000237A/en
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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/26—Processes or apparatus specially adapted to produce multiple sub- holograms or to obtain images from them, e.g. multicolour technique
    • G03H1/268—Holographic stereogram
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/04—Processes or apparatus for producing holograms
    • G03H1/0476—Holographic printer

Abstract

The present invention relates to a three-dimensional printer with a digital hologram device. According to the present invention, a laser generation device is installed on a side wall of a stack-type three-dimensional printer and projects a three-dimensional image on the upper part of an output bed to generate a predictive three-dimensional image of a printout. Accordingly, a technology for a user to check predicted data of the printout and intuitively compare the printout with the predictive data by using a sidewall camera is provided. Therefore, the user of the three-dimensional printer can more intuitively determine errors and the size of a model which the user prints when the user performs a printing operation.

Description

[0001] The present invention relates to a three-dimensional printer having a digital hologram apparatus,

The present invention relates to a three-dimensional printer having a digital hologram apparatus, and more particularly, to a three-dimensional printer having a digital hologram apparatus, To generate a predicted stereoscopic image of the output, thereby enabling the user to visually confirm the predicted data of the output, and to provide a technique for comparing the output data with the predicted data more intuitively using a sidewall camera Dimensional printer equipped with a hologram device.

Recently, three-dimensional printing technology has been attracting attention in the prototype development stage or small quantity production of various kinds of products at the prototype development stage.

3D printing is performed by analyzing the three-dimensional shape of an object through a three-dimensional graphic design program and generating a combination of two-dimensional cross-sectional shape data. Then, raw materials such as ABS and PLA It is a technique of forming a three-dimensional shape of an object by forming it on an output bed by various methods.

In the three-dimensional printing, there are a FDM (Fused Deposition Modeling) method or a FFF (Fused Filament Fabrication) method in which a raw material is extruded and sequentially laminated on an output bed to realize a three-dimensional shape. The powder is melted with a high- There are various SLS (Selective Laser Sintering) systems for realizing a three-dimensional shape, and SLA (Stereolithography Apparatus) systems for projecting a laser beam into a water tank containing a liquid photocurable resin.

A three-dimensional printer using the FDM method or the FFF method, which is a conventional laminate shaping method, uses a method of extruding raw material directly onto an output bed and molding it. However, when the output object is a three-dimensional scanner Dimensional modeling file provided by a computer program or an application, the size information of the model displayed on the program can be obtained only when the output is not actually intuitively known, .

Also, in order to confirm whether the finished model matches with the original model which is to be pulled, in order to confirm the model in the eyes or to use an auxiliary mechanism such as vernier caliper, scale, etc., There was an inconvenience.

SUMMARY OF THE INVENTION The present invention has been made to overcome the above-mentioned problems, and it is an object of the present invention to provide a technique for allowing a user of a three-dimensional printer to visually confirm the expected data of an output product.

It is another object of the present invention to provide a technology that can more intuitively compare the output with the expected data using the internal side wall camera of the 3D printer.

As a means for solving the above-mentioned technical problem, there is proposed, as a means for solving the technical problem, a laser generating apparatus provided on the inner side wall of a three-dimensional printer and projecting a stereoscopic image onto an output bed from the laser generating apparatus, The present invention provides a technique that allows the user to visually confirm the expected finished shape of the output more intuitively.

The present invention also provides a technique for comparing photographs of a stereoscopic image projected using an inner side wall camera and photographs of an output finished output, and judging whether the originally intended output is correctly output.

The present invention can more intuitively determine the size and error of a model to be output when a user of the three-dimensional printer executes the output.

1 is a configuration diagram according to an embodiment of the present invention.
2 is a digital hologram technology processing step according to an embodiment of the present invention.
3 is a comparative schematic diagram of an output model and a hologram image according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly explain the present invention, parts not related to the description are omitted.

Furthermore, when a part is referred to as being "comprising" or "comprising" an element, it is understood that it may include other elements as well, without excluding other elements unless specifically stated otherwise.

Hereinafter, the three-dimensional printer method using the lamination method will be described as an example. However, it is obvious that the present invention is not limited to the lamination method, but can be used in other types of three-dimensional printers in various modified forms.

1 is a configuration diagram according to an embodiment of the present invention.

1, a three-dimensional printer having a digital hologram apparatus according to the present invention includes a three-dimensional printer main body 100, a digital hologram technology processing device (not shown), a hologram restoring device 200, a camera 220 And a processor. More specifically, the three-dimensional printer main body unit includes an output nozzle unit (not shown), an output bed unit 110, and a driving unit 120.

2 is a digital hologram technology processing step according to an embodiment of the present invention.

Referring to FIG. 2, when a computer or the like issues an output command to a three-dimensional printer, data of a model to be output to a three-dimensional printer is firstly fetched from the digital hologram description processing device, and a computer- generated hologram . Since the process of generating a computer generated hologram does not play an important role in the constituent elements of the present invention, the description is omitted here. The hologram data of the generated output model is sent to the hologram reconstruction device 200 to prepare for display on the three-dimensional printer.

Before the hologram data of the output model obtained by the above-described process is projected, the driving unit 120 of the three-dimensional printer descends the output bed unit 110 to the lowermost end. When the output bed unit 110 is lowered to the lowermost end, the camera 220 attached to the side wall, the rear side, and the front side of the three-dimensional printer stores an image of the output bed unit 110 at a location where the output bed unit 110 is attached. When image storage is completed, the hologram reconstruction apparatus 200 projects the hologram data of the output model on the output bed unit 110 without changing the size. The user can stereoscopically view the hologram data of the projected output model in any direction of the three-dimensional printer. In this process, the user can roughly predict the size of the model to be output and the shape of the model . The hologram data of the output model is stored in the image 310 by using the camera 220 attached to the side wall, the rear side and the front side of the three-dimensional printer before the designated projection time of the hologram data of the output model is completed. In the case of a three-dimensional printer having no side wall according to an embodiment, an auxiliary mechanism may be required to fix the camera 220 by being coupled to the driving unit 120 or the outer frame for photographing the side image.

When the projection time is terminated, the operation of the hologram reconstruction apparatus 200 is stopped, and thus the hologram data of the output model disappears from the top of the output bed unit 110. After that, the driving unit 120 moves the output bed unit 110 again to the upper position, puts the output bed unit 110 in an output standby state, and generates an output model through the operation of the normal three-dimensional printer.

3 is a comparative schematic diagram of an output model and a hologram image according to an embodiment of the present invention.

When the output of the model is completed, the driving unit 120 causes the output bed unit 110 to descend to the lowermost end. When the output bed is lowered to the lowermost end, the camera 220 attached to the side wall, rear side and front side stores the image 300 of the output model. At this time, the outline of the output is compared (320) while the image data 310 of the three-dimensional hologram previously stored and the image data 300 of the output model just taken are crossed, Verify that the output is OK. The output model can be confirmed by the above process, such as a malfunction in the output due to a malfunction in the output or a quality defect due to the performance limit of the printer. According to an exemplary embodiment, when the error exceeds a certain level during comparison of the outline, the user can be informed by using a warning in software or light or sound in the 3D printer itself.

The foregoing has shown and described specific embodiments. However, it should be understood that the present invention is not limited to the above-described embodiment, and various changes and modifications may be made without departing from the technical idea of the present invention described in the following claims .

100: three-dimensional printer main body 110: output bed unit
120: driving part 200: hologram restoring device
210: generated hologram 220: camera
300: image data of an output model 310: image data of a three-dimensional hologram
320: Difference between image data of the three-dimensional hologram and image data of the output model

Claims (5)

In a three-dimensional printer having a digital holographic device,
And a digital hologram technology processing device for hologram-processing the three-dimensional model to be output.
The method according to claim 1,
Further comprising a hologram restoring device for scanning the hologram finished in the digital hologram processing device on an output bed unit of the three-dimensional printer.
3. The method of claim 2,
And a camera which is reconstructed by the hologram reconstruction apparatus and is capable of photographing a hologram scanned on the output bed unit before the output of the 3D printer and an image of a model in which the output is completed and storing the image as image data. One 3D printer.
The method of claim 3,
And a processor for comparing the image of the model whose output has been completed in the three-dimensional printer and the image of the hologram scanned on the output-before-output bed unit to each other to check the output quality. Dimensional printer.
5. The method of claim 4,
The processor confirms the output quality and provides an error message when the difference between the image of the hologram scanned on the pre-output output bed unit and the outline of the image of the completed model is significant, and an alarm Dimensional printer having a digital hologram device.



KR1020150089235A 2015-06-23 2015-06-23 Three-dimensional Printer with apparatus which create digital hologram KR101953085B1 (en)

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KR101953085B1 KR101953085B1 (en) 2019-02-28

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102006593B1 (en) * 2019-03-22 2019-08-01 학교법인 정화예술대학 Digital waorking system for special makeup using photogrammetry and 3d printer and the digital working method using this

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120105903A1 (en) * 2010-08-18 2012-05-03 Pettis Nathaniel B Networked three-dimensional printing
US20140043630A1 (en) * 2012-08-08 2014-02-13 Makerbot Industries, Llc Displays for three-dimensional printers
KR20150049907A (en) * 2013-10-31 2015-05-08 엘지전자 주식회사 Apparatus and Method for Head Mounted Display indicating process of 3D printing

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120105903A1 (en) * 2010-08-18 2012-05-03 Pettis Nathaniel B Networked three-dimensional printing
US20140043630A1 (en) * 2012-08-08 2014-02-13 Makerbot Industries, Llc Displays for three-dimensional printers
KR20150049907A (en) * 2013-10-31 2015-05-08 엘지전자 주식회사 Apparatus and Method for Head Mounted Display indicating process of 3D printing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102006593B1 (en) * 2019-03-22 2019-08-01 학교법인 정화예술대학 Digital waorking system for special makeup using photogrammetry and 3d printer and the digital working method using this

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