KR20190096529A - Movable display apparatus for reproducing large holographic image - Google Patents

Movable display apparatus for reproducing large holographic image Download PDF

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Publication number
KR20190096529A
KR20190096529A KR1020180016079A KR20180016079A KR20190096529A KR 20190096529 A KR20190096529 A KR 20190096529A KR 1020180016079 A KR1020180016079 A KR 1020180016079A KR 20180016079 A KR20180016079 A KR 20180016079A KR 20190096529 A KR20190096529 A KR 20190096529A
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KR
South Korea
Prior art keywords
portion
housing
guide
objective lens
hologram film
Prior art date
Application number
KR1020180016079A
Other languages
Korean (ko)
Inventor
옥광호
김대현
모은미
Original Assignee
주식회사 미래기술연구소
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 주식회사 미래기술연구소 filed Critical 주식회사 미래기술연구소
Priority to KR1020180016079A priority Critical patent/KR20190096529A/en
Publication of KR20190096529A publication Critical patent/KR20190096529A/en

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    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47FSPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
    • A47F11/00Arrangements in shop windows, shop floors or show cases
    • A47F11/06Means for bringing about special optical effects
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03HHOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00Holographic processes or apparatus using light, infra-red or ultra-violet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/0005Adaptation of holography to specific applications
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03HHOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00Holographic processes or apparatus using light, infra-red or ultra-violet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/22Processes or apparatus for obtaining an optical image from holograms

Abstract

The present invention is provided in the housing 11, the accommodation space 12 of a predetermined size therein, the opening 13 of a predetermined area formed in the front portion of the housing 11, the bottom surface of the housing 11 Moving wheel 14; A transparent window 21 installed at the opening 13 of the housing 11 by exposing the front part to the outside, and a hologram film 22 coupled to the rear part of the transparent window 21; At a certain angle with the hologram film 22, the support plate 31 fixedly coupled to the rear portion of the inner receiving space 12 of the housing 11, the light source 32 fixedly coupled to the rear portion of the support plate 31, therein The guide 33 is provided with a movable screw spaced apart at a predetermined distance from the front of the light source 32, the lower surface portion of the slide 34 is coupled to the movable screw portion of the guide 33, one end portion of the movable screw of the guide 34 The other end portion is combined with the operating rod 35 extending to a certain length behind the guide 33, the objective lens 36, hologram film 24 installed through the central portion of the slide 34 to form a certain angle It provides a movable display device for reproducing a large holographic image including a; diffuser sheet 38 of a predetermined area facing the objective lens 36 and spaced apart from the objective lens 36 at a predetermined distance.

Description

Movable display apparatus for reproducing large holographic image}

The present invention relates to a mobile display mechanism capable of reproducing a holographic image. More specifically, the present invention relates to a mobile display device that is not only inexpensive for production but also easy to move to a place requiring exhibition, and furthermore, to reproduce the holographic image after the movement. This is about a very convenient exhibition fixture.

Relics such as the main Buddha of Seokguram and Dabo Pagoda are very rare in their own right, and many people are interested in it. However, the characteristics of cultural property that should be permanently protected are considered to be downtown due to the size of the cultural property. Movement exhibition is impossible.

Therefore, if it is difficult to come and go directly to the area where the cultural property is located, the cultural needs are satisfied by using photographs taken from various angles of the cultural property. Many holographic exhibition apparatuses that can be reproduced in dimensional images have been proposed.

In general, a holographic display apparatus places a holographic film on which a subject is recorded on one side, and arranges a light source at an angle inclined with the hologram film. The recorded image is reproduced to the viewer as a stereoscopic image.

On the other hand, in the hologram display mechanism, the light source mainly uses a laser, and since the laser beam irradiated from the light source is small in itself, an apparatus called an expensive special filter such as the one disclosed in FIG. 3 is used. It is magnified at a predetermined angle of incidence and irradiated with a hologram film.

The special filter is composed of an objective lens and a pinhole. The objective lens is a means for diffusing light at a solid angle of a predetermined size, and the pinhole is a means for removing noise from the light diffused by the objective lens. That is, as shown in FIG. 4A, the noisy wavefront portion of the first diffracted light diffused by the objective lens is removed by the pinhole, and finally, only the second clean, low noise clean diffraction light as shown in FIG. 4B is used for hologram recording. Can be.

However, in order to operate such a special filter, considerable experience is required. For example, the position of the pinhole may be selected by selecting a plurality of operating rods shown in the drawing, and the pinhole may be properly rotated in one direction or the other to move the pinhole up and down and left and right so that a small ring of diffracted light (a pinhole diffraction image) appears. If it is difficult to find the pinholes to find sequentially away from the objective lens.

At this time, the optical axis between the objective lens and the pinhole should be kept exactly aligned. If the optical axis between the objective lens and the pinhole is misaligned, the objective lens and the pinhole may be mutually aligned using a plurality of operating rods provided on the fixing plate of the objective lens. The optical axis of the liver must be aligned beforehand.

As such, the special filter is required for precise follow-up operations such as aligning the optical axis between the objective lens and the pinhole and then moving the pinhole to generate an appropriate diffracted light, even if the economic burden on purchase is separate. In addition, if it was necessary to move the venue, it was not cumbersome in that it had to perform this complicated work again in the moved place.

Republic of Korea Patent Publication No. 2017-0059009

The present invention has been proposed to solve the problems of the prior art, the object of the present invention can be produced at a low cost as well as an exhibition apparatus that can reproduce a large holographic image very quickly regardless of whether the exhibition apparatus is moved or not. In providing.

In order to achieve the above object, the present invention provides a housing 11 having a predetermined size of a receiving space 12 therein, an opening 13 having a predetermined area formed at a front portion of the housing 11, and a housing 11. Moving wheel 14 provided on the bottom surface of the; A transparent window 21 installed at the opening 13 of the housing 11 by exposing the front part to the outside, and a hologram film 22 coupled to the rear part of the transparent window 21; At a certain angle with the hologram film 22, the support plate 31 fixedly coupled to the rear portion of the inner receiving space 12 of the housing 11, the light source 32 fixedly coupled to the rear portion of the support plate 31, therein The guide 33 is provided with a movable screw spaced apart at a predetermined distance from the front of the light source 32, the lower surface portion of the slide 34 is coupled to the movable screw portion of the guide 33, one end portion of the movable screw of the guide 34 The other end portion is combined with the operating rod 35 extending to a certain length behind the guide 33, the objective lens 36, hologram film 24 installed through the central portion of the slide 34 to form a certain angle Opposed but spaced apart from the objective lens 36 by a predetermined distance diffuser sheet 38 of a predetermined area which is installed in the front portion of the support plate 31;

The present invention proposes a configuration for diffusing light with a combination of a commercially available diffuser sheet and an objective lens instead of a special filter of a pinhole and an objective lens combination, which is not only expensive, but requires a long time of adjustment, and thus displays a hologram. Not only can the production cost of the apparatus be significantly reduced, but it is possible to minimize the time required for the preparation of the exhibition even if the exhibition location is changed.

1 is a schematic perspective configuration diagram of a mobile exhibition apparatus according to the present invention.
Figure 2 is a schematic side configuration diagram of the light generating mechanism portion in the mobile display device according to the present invention.
Figure 3 is a schematic configuration diagram of a conventional special filter.
4A is a schematic configuration diagram of a first diffracted light by an objective lens in a conventional special filter;
4B is a schematic configuration diagram of a second diffracted light by pinhole in the conventional special filter;

Preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings, in which embodiments of the present invention are not directly related to the technical features of the present invention, or in the art to which the present invention pertains. The detailed description of the matters apparent to those skilled in the art will be omitted.

Figure 1 shows a schematic perspective configuration diagram of a mobile display device according to the present invention, Figure 2 shows a schematic side configuration diagram of the light generating mechanism in FIG. As disclosed in each drawing, the present invention has a technical feature including an exhibition box, a hologram portion, a light generating mechanism portion. Hereinafter, each of these components will be described in detail.

The exhibition box is a part in which the hologram part and the light generating mechanism part are installed, the housing 11 having a predetermined size of the receiving space 12 therein, and the opening of a predetermined area formed in the front portion of the housing 11. 13). The vertical height at which the opening 13 is formed is preferably determined in consideration of the eye height of the viewer.

In the drawings, a case in which the housing has a rectangular parallelepiped structure is disclosed. However, it is apparent that the housing may have various shapes. Reference numeral 14 denotes a moving wheel, and when the moving wheel 14 is provided, it is convenient to adjust the installation position of the exhibition box.

The hologram portion is a portion where the film on which the hologram image is recorded is located, and includes a transparent window 21 and a hologram film 22. The transparent window 21 is installed in the opening 13 of the housing 11 with the front portion exposed to the outside. The hologram film 22 is coupled to the rear portion of the transparent window 21.

The hologram film 22 is assumed to be made of a light transmitting hologram, but the present invention does not exclude that the hologram film 22 is made of a rainbow hologram.

The light generating mechanism unit generates light and removes noise and the like from the generated light to irradiate the hologram film 22 with illumination light for reproduction. The light generating mechanism includes a support plate 31, a light source 32, a guide 33, a slide 34, an operation rod 35, an objective lens 36, and a diffuser sheet 38.

The support plate 31 is fixedly coupled to the rear portion of the inner accommodating space 12 of the housing 11 and forms an angle with the hologram film 22. The drawings disclose a case in which the support plate 31 is fixedly coupled to the upper portion of the inner accommodating space 12, but the present invention excludes the case in which the support plate 31 is fixedly coupled to the lower part of the inner accommodating space 12. I never do that.

Reference numeral 39 is a means for installing the support plate 31 in the inner receiving space 12 of the housing 11, preferably made of a structure capable of adjusting the angle in the vertical direction (or vertical direction and left and right directions).

The light source 32 is fixedly coupled to the rear portion of the support plate 31. The light source 32 may be made of a laser. A control unit (not shown) for controlling the operation of the light source may be provided at one side or the rear of the light source.

The guide 33 is installed at a predetermined interval away from the front of the light source 32. Guide 33 may have a predetermined length of a plate-like structure, as shown in the figure, a movable screw (not shown) is provided inside.

The lower portion of the slide 34 is coupled to the movable screw portion of the guide 33. This, a separate movable piece is provided on the lower surface of the slide 34, the movable piece may be configured to be coupled to the movable screw. Such a configuration is well known in the related art, and thus a detailed description thereof will be omitted.

One end portion of the operation rod 35 is coupled to the movable screw of the guide 33, and the other end portion thereof extends a predetermined length behind the guide 33. When the operating rod 35 is rotated in one direction or the other direction, the slide 34 moves a predetermined distance toward the front or the rear of the guide 33.

The objective lens 36 is a means for diffusing light generated by the light source at a predetermined solid angle, and is provided through the central portion of the slide 34. The objective lens 36 may be configured to be mounted inside the barrel of a predetermined diameter as shown in the figure.

The diffuser sheet 38 is installed at the front portion of the support plate 31 spaced apart from the objective lens 36 at a predetermined interval and faces the hologram film 24 at an angle. A diffuser is a means for further diffusing the light diffused by the objective lens at a predetermined solid angle and reducing the intensity of the light to a predetermined level or less.

That is, according to the present invention, by using a diffuser sheet widely distributed in the market in place of the pinhole of the conventional special filter, it is possible to convert the light diffused from the objective lens more uniformly and vividly as the conventional pinhole and use it as the reproduction illumination light. Do. The diffuser sheet may be selected from commercially available products, and in particular, it is preferable to use a product having a transmission efficiency of about 85 to 92% and an excellent light transmittance between 200 nm and 1500 nm.

Reference numeral 37 is a slit for installing the diffuser sheet 38. When the slit 37 is provided, the diffuser sheet 38 may be more stably positioned, and a plurality of diffuser sheets having different characteristics may be selectively installed. It is possible to do

A schematic operation of the present invention having such a configuration will be described with reference to the foregoing description and the accompanying FIG. 2.

First, after transporting the exhibition box to the area that requires viewing, the exhibition box is placed in a proper position, and the specific hologram film 22 for reproducing the hologram image is fixed to the rear of the transparent window 21. When the hologram film 22 is fixed, the light generating mechanism is installed in the inner receiving space 12 of the housing 11. At this time, the light generating mechanism should be positioned to face the hologram film 22.

When the light generating mechanism is installed, the light source 32 is operated so that the generated light is projected through the objective lens 36 to the diffuser sheet 38. In this process, the distance between the objective lens 36 and the diffuser sheet 38 is adjusted using the operating rod 35 so that the light projected onto the diffuser sheet 38 is diffused to an appropriate size.

 As the distance between the objective lens 36 and the diffuser sheet 38 is adjusted, the light ① generated by the light source 32 is diffused at a predetermined solid angle through the objective lens 36 as shown in the drawing (②). The light diffused by the objective lens 36 at a predetermined solid angle is further diffused while passing through the diffuser sheet 38 and simultaneously irradiated to the hologram film 22 while being uniformly reduced in intensity of light (③).

The reproduced illumination light diffused and homogenized by the diffuser sheet 38 and irradiated onto the hologram film 22 passes through the hologram film 22 while reproducing the hologram image recorded on the hologram film 22 in three dimensions, and reproduced three-dimensionally. Viewers will see the image (④).

As described above, the present invention can be moved to any place where display is required in that the hologram image can be reproduced by simple position adjustment of the objective lens without the optical axis alignment and the pinhole adjustment operation of the special filter, which requires a long time for reproducing the hologram image. It is possible to exhibit in a very quick time.

In the above description, but limited to the preferred embodiments of the present invention, but this is only an example, the present invention is not limited to this may be modified and carried out in various ways, and further technical features based on the technical spirit disclosed It will be apparent that it can be implemented in addition.

11; Housing 12; Internal accommodation space
13; Opening 14; Wheel
21; Transparent window 22; Holographic film
31; Support plate 32; Light source
33; Guide 34; slide
35; Operating rod 36; Objective
37; Slit 38; Diffuser Sheet
39; Installation

Claims (1)

  1. A housing 11 having a predetermined size of the receiving space 12 therein, an opening 13 having a predetermined area formed at the front portion of the housing 11, and a moving wheel 14 provided at the bottom surface of the housing 11. );
    A transparent window 21 installed at the opening 13 of the housing 11 by exposing the front part to the outside, and a hologram film 22 coupled to the rear part of the transparent window 21;
    At a certain angle with the hologram film 22, the support plate 31 fixedly coupled to the rear portion of the inner receiving space 12 of the housing 11, the light source 32 fixedly coupled to the rear portion of the support plate 31, therein The guide 33 is provided with a movable screw spaced apart at a predetermined distance from the front of the light source 32, the lower surface portion of the slide 34 is coupled to the movable screw portion of the guide 33, one end portion of the movable screw of the guide 34 The other end portion is combined with the operating rod 35 extending to a certain length behind the guide 33, the objective lens 36, hologram film 24 installed through the central portion of the slide 34 to form a certain angle A diffuser sheet 38 having a predetermined area facing the objective lens 36 and spaced apart from the objective lens 36 at a front portion of the support plate 31;
    Portable exhibition mechanism for large-scale holographic image reproduction.
KR1020180016079A 2018-02-09 2018-02-09 Movable display apparatus for reproducing large holographic image KR20190096529A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020180016079A KR20190096529A (en) 2018-02-09 2018-02-09 Movable display apparatus for reproducing large holographic image

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020180016079A KR20190096529A (en) 2018-02-09 2018-02-09 Movable display apparatus for reproducing large holographic image

Publications (1)

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KR20190096529A true KR20190096529A (en) 2019-08-20

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170059009A (en) 2008-12-31 2017-05-29 세레스 이미징 리미티드 A Hologram Display Apparatus and A Method of Producing a Holographic Image Using the Same

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170059009A (en) 2008-12-31 2017-05-29 세레스 이미징 리미티드 A Hologram Display Apparatus and A Method of Producing a Holographic Image Using the Same

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