CN112255879A - Image disc capable of being used for holographic projection and high-cost-performance holographic projection display device - Google Patents
Image disc capable of being used for holographic projection and high-cost-performance holographic projection display device Download PDFInfo
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- CN112255879A CN112255879A CN202011202744.3A CN202011202744A CN112255879A CN 112255879 A CN112255879 A CN 112255879A CN 202011202744 A CN202011202744 A CN 202011202744A CN 112255879 A CN112255879 A CN 112255879A
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B23/00—Devices for changing pictures in viewing apparatus or projectors
- G03B23/08—Devices for changing pictures in viewing apparatus or projectors in which pictures are attached to a movable carrier
- G03B23/10—Devices for changing pictures in viewing apparatus or projectors in which pictures are attached to a movable carrier drum or disc carrier
- G03B23/105—Devices for changing pictures in viewing apparatus or projectors in which pictures are attached to a movable carrier drum or disc carrier disc carriers
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/50—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images the image being built up from image elements distributed over a 3D volume, e.g. voxels
- G02B30/54—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images the image being built up from image elements distributed over a 3D volume, e.g. voxels the 3D volume being generated by moving a 2D surface, e.g. by vibrating or rotating the 2D surface
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B35/00—Stereoscopic photography
- G03B35/18—Stereoscopic photography by simultaneous viewing
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
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Abstract
The invention discloses an image disc capable of being used for holographic projection, which comprises an image disc body, wherein N groups of projection source images are arranged on the image disc body, and each group of projection source images consists of four single images which are symmetrically distributed in a cross shape. The invention also discloses a high-cost-performance holographic projection display device which comprises an image disc, an imaging lens group, a driving device and four light sources, wherein the four light sources are respectively in one-to-one correspondence with the four imaging lenses. The image disc capable of being used for holographic projection and the high-cost-performance holographic projection display device adopting the technical scheme have the advantages of novel structure, ingenious design and easiness in implementation, can generate simple dynamic three-dimensional images capable of being played continuously and circularly, and can be matched with human-computer interaction to achieve better interaction effect; simple, stable and reliable, durable, low in cost and high in economic and market value.
Description
Technical Field
The invention relates to the technical field of projection, in particular to an image disc capable of being used for holographic projection and a high-cost-performance holographic projection display device.
Background
The traditional man-machine interaction interface mainly comprises two-dimensional patterns or two-dimensional luminous icons and also comprises dynamic two-dimensional display. With the improvement of living standard and the higher requirements of people on intellectualization and interface friendliness, the traditional two-dimensional mode cannot meet the requirements. With the progress of science and technology and the development of economic society, holographic projection technology is gradually applied to daily life of people, and a better human-computer interaction interface can be provided. The holographic projection technology belongs to a 3D technology, and refers to a technology for recording and reproducing a real three-dimensional image of an object by using an interference principle.
Generally, a holographic projection device mainly comprises an imaging lens group in an inverted pyramid structure and four display screens distributed around the imaging lens group in a cross manner, and a three-dimensional dynamic image can be generated at the center of the imaging lens group through the matching of display images of the display screens. However, the popularization of the holographic projection technology in life is severely restricted due to the fact that a display screen and a related control circuit are expensive.
In addition, in some application scenarios, only a very simple dynamic image, such as an image with an object or a mark rotating continuously, needs to be generated by projection, and if the existing holographic projection device is adopted, the size is small and the cost is high.
Therefore, it is highly desirable to design a new cost-effective holographic projection device capable of generating simple dynamic images.
Disclosure of Invention
In order to solve the technical problems, the invention provides an image disc capable of being used for holographic projection and a holographic projection display device with high cost performance.
The technical scheme is as follows:
an image disk that can be used for holographic projection, characterized in that: the image disc comprises an image disc body, wherein N groups of projection source images are arranged on the image disc body, each group of projection source images consists of four single images which are in cross symmetrical distribution, 4N single images are uniformly distributed on the image disc body in an annular mode, the part of the image disc body with the single images can transmit light, and the rest parts of the image disc body are opaque.
By adopting the structure, each group of projection source images can be lightened to generate a three-dimensional image through the imaging lens group in the inverted pyramid structure, and then all groups of projection source images are quickly switched to generate a continuously-changed three-dimensional image, so that a simple dynamic three-dimensional image is formed by utilizing the characteristic of 'image persistence' in human vision, and meanwhile, the human-computer interaction can be matched, and the interaction effect is better; the image disc has simple and reliable structure, easy manufacture and low cost.
Preferably, the method comprises the following steps: the image disc body is of a disc-shaped structure, the structure is optimal, and the occupied space is small.
Preferably, the method comprises the following steps: the image disc body is formed by a micro-lens array, or is made of a film material, or is made by an in-mold injection molding process, or is made by a double-color injection molding process. By adopting the structure, the part of the image disc body with a single image can transmit light, and the rest part is opaque, so that the imaging effect of holographic projection is ensured, and the image disc is durable and low in cost.
The utility model provides a high performance price ratio holographic projection display device which the main points lie in: including foretell image disc that can be used for holographic projection, set up the imaging lens group in image disc body top, be used for driving image disc body pivoted drive arrangement and four and be the light source of cross symmetric distribution in drive image disc body below, the imaging lens group includes four imaging lens that are inverted pyramid structure and arrange, and four light sources respectively with four imaging lens one-to-one, when drive arrangement drives image disc body and rotates, can make four single images of arbitrary a set of projection source image be located the top that corresponds the light source respectively.
By adopting the structure, the four light sources light one group of projection source images of the image disc each time, the four single images are imaged at the central position of the imaging lens group through the corresponding imaging lenses to generate a three-dimensional image, the driving device continuously drives the image disc to rotate, the projection source images of each group are sequentially lighted, namely the corresponding three-dimensional images are sequentially generated, through regularly setting the change rule of each single image, and by utilizing the characteristic of 'image persistence' in human vision, similar to animation and film showing principles, the sequentially generated three-dimensional images jointly form a simple dynamic three-dimensional image which can be continuously and circularly played, meanwhile, the human-computer interaction can be matched, and the interaction effect is better; the whole structure is simple, stable and reliable, durable, low in cost and high in economic and market value.
Preferably, the method comprises the following steps: the LED display device is characterized by further comprising a base, wherein the base is of a box-shaped structure with an upper opening, the driving device, the image disc body and the four light sources are all installed in the base, and the image disc body is located at the opening position of the base. The structure more than adopting can install the essential element in the base, has not only promoted holistic outward appearance aesthetic feeling, can play the guard action moreover, increase of service life.
Preferably, the method comprises the following steps: the four light sources are four LEDs arranged on a PCBA, and the PCBA is arranged in the base. By adopting the structure, the structure is simple and reliable, easy to arrange and long in service life.
Preferably, the method comprises the following steps: the driving device is a motor arranged on the base, and the image disc body is arranged on a rotating shaft of the motor. By adopting the structure, the device is stable, reliable, low in cost and easy to control.
Preferably, the method comprises the following steps: the imaging lens group is arranged on the base through the lens support. By adopting the structure, the stability and reliability of the imaging lens group can be ensured.
Preferably, the method comprises the following steps: the lens support comprises four upright columns arranged in a square shape and a square frame fixed at the upper ends of the four upright columns, the imaging lens group is arranged on the square frame, and the lower ends of the four upright columns are fixedly connected with the base. By adopting the structure, the structure is stable and reliable, the cost is lower, and the visual impression is not influenced.
Compared with the prior art, the invention has the beneficial effects that:
the image disc capable of being used for holographic projection and the high-cost-performance holographic projection display device adopting the technical scheme have the advantages of novel structure, ingenious design and easiness in implementation, can generate simple dynamic three-dimensional images capable of being played continuously and circularly, and can be matched with human-computer interaction to achieve better interaction effect; simple, stable and reliable, durable, low in cost and high in economic and market value.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of FIG. 1 with the base removed;
fig. 3 is a schematic structural diagram of the image disc.
Detailed Description
The present invention will be further described with reference to the following examples and the accompanying drawings.
As shown in fig. 2 and 3, an image disc capable of being used for holographic projection mainly comprises an image disc body 1, wherein the image disc body 1 preferably adopts a disc-shaped structure, the structure is optimal, the occupied space is small, and the image disc body 1 can also be a square disc-shaped structure, a polygonal disc-shaped structure and the like. The image disc body 1 is provided with N groups of projection source images, each group of projection source images consists of four single images 1a which are symmetrically distributed in a cross shape, namely in each group of projection source images, the four single images 1a are distributed on the image disc body 1 every 90 degrees. In general, 4N single images 1a are uniformly distributed on the image disc body 1 in a ring shape, and the portion of the image disc body 1 having the single image 1a can transmit light, and the rest is opaque.
Specifically, the image disc body 1 is manufactured in a variety of ways, and the following mainly describes preferred ways. The image disc body 1 can be formed by a micro-lens array, and has the advantages of good imaging effect, durability, stability and reliability. The image disc body 1 can be directly made of film materials, namely the image disc body 1 is a film, so that the imaging effect can be guaranteed, and the cost is low. The image disc body 1 can be manufactured by adopting an in-mold injection molding process based on a film, so that the assembly is convenient, the stability and the reliability are improved, and the service life is prolonged. The image disc body 1 can also be manufactured by adopting a double-color injection molding process, and is stable, reliable and durable.
Referring to fig. 1-3, a cost-effective holographic projection display device includes the image disc for holographic projection, an imaging lens set disposed above the image disc body 1, a driving device 3 for driving the image disc body 1 to rotate, and four light sources 5 distributed below the driving image disc body 1 in a cross-shaped symmetrical manner, that is, in this embodiment, the driving device 3 and the four light sources 5 are both located below the image disc body 1, and the imaging lens set is located above the image disc body 1.
The imaging lens group comprises four imaging lenses 2 which are arranged in an inverted pyramid structure, the four light sources 5 are in one-to-one correspondence with the four imaging lenses 2, and when the driving device 3 drives the image disc body 1 to rotate, four single images 1a of any group of projection source images can be located above the corresponding light sources 5 respectively.
Four light sources 5 light a group of projection source images of the image disc each time, four single images 1a are imaged at the central position of the imaging lens group through corresponding imaging lenses to generate a three-dimensional image, the driving device 3 continuously drives the image disc to rotate, each group of projection source images are sequentially lighted, namely corresponding three-dimensional images are sequentially generated, through regularly setting the change rule of each single image 1a, the characteristics of 'image persistence' in human vision are utilized to be similar to animation and film showing principles, and each sequentially generated three-dimensional image jointly forms a simple dynamic three-dimensional image which can be continuously and circularly played.
Referring to fig. 1 and 2, the cost-effective holographic projection display device further includes a base 4, the base 4 is a box-shaped structure with an upper opening, the driving device 3, the image disc body 1 and the four light sources 5 are all installed in the base 4, and the image disc body 1 is located at the opening position of the base 4.
In the embodiment, the four light sources 5 are four LEDs arranged on the PCBA6, the PCBA6 is installed in the base 4, and the LED light sources are simple and reliable, easy to arrange and long in service life. The four light sources 5 can also be an OLED light source and a laser light source, which can further improve the imaging brightness and the imaging effect. The four light sources 5 can also be common halogen and incandescent lamps, and the cost is low.
The driving device 3 is a motor installed on the base 4, and the image disc body 1 is installed on a rotating shaft of the motor. In this embodiment, the motor may be a servo motor or a stepping motor, and may be selected according to actual requirements.
Imaging lens group passes through lens support 7 and installs on base 4, and in this embodiment, lens support 7 includes four stands 7a that are the square and arrange and fix square 7b at four stands 7a upper ends, and imaging lens group arranges in on square 7b, and four stands 7 a's lower extreme all with base 4 fixed connection, can install imaging lens group reliably and stably. The lens holder 7 may be of other structure as long as it can stably and reliably support the imaging lens group.
Finally, it should be noted that the above-mentioned description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and scope of the present invention.
Claims (9)
1. An image disk capable of being used for holographic projection, characterized by: the image disc comprises an image disc body (1), wherein the image disc body (1) is of a disc-shaped structure, N groups of projection source images are arranged on the image disc body (1), each group of projection source images consists of four single images (1a) which are symmetrically distributed in a cross shape, 4N single images (1a) are uniformly distributed on the image disc body (1) in an annular mode, the part, provided with the single images (1a), of the image disc body (1) can transmit light, and the rest parts are opaque.
2. Image disk which can be used for holographic projection according to claim 1, characterized in that: the image disc body (1) is of a disc-shaped structure.
3. Image disk which can be used for holographic projection according to claim 1, characterized in that: the image disc body (1) is formed by a micro-lens array, or is made of a film material, or is made by an in-mold injection molding process, or is made by a double-color injection molding process.
4. The utility model provides a high performance price ratio holographic projection display device which characterized in that: the image disc comprises the image disc capable of being used for holographic projection according to any one of claims 1 to 3, an imaging lens group arranged above the image disc body (1), a driving device (3) used for driving the image disc body (1) to rotate, and four light sources (5) symmetrically distributed below the image disc body (1) in a cross shape, wherein the imaging lens group comprises four imaging lenses (2) arranged in an inverted pyramid structure, the four light sources (5) respectively correspond to the four imaging lenses (2) in a one-to-one mode, and when the driving device (3) drives the image disc body (1) to rotate, the four single images (1a) of any one group of projection source images can be respectively positioned above the corresponding light sources (5).
5. The cost-effective holographic projection display of claim 4, in which: the LED display screen is characterized by further comprising a base (4), wherein the base (4) is of a box-shaped structure with an upper opening, the driving device (3), the image disc body (1) and the four light sources (5) are all installed in the base (4), and the image disc body (1) is located at the opening position of the base (4).
6. The cost-effective holographic projection display of claim 5, wherein: the four light sources (5) are four LEDs arranged on a PCBA (6), and the PCBA (6) is arranged in the base (4).
7. The cost-effective holographic projection display of claim 5, wherein: the driving device (3) is a motor installed on the base (4), and the image disc body (1) is installed on a rotating shaft of the motor.
8. The cost-effective holographic projection display of claim 5, wherein: the imaging lens group is arranged on the base (4) through a lens bracket (7).
9. The cost-effective holographic projection display of claim 8, in which: the lens support (7) comprises four upright posts (7a) arranged in a square shape and a square frame (7b) fixed at the upper ends of the four upright posts (7a), the imaging lens group is arranged on the square frame (7b), and the lower ends of the four upright posts (7a) are fixedly connected with the base (4).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011202744.3A CN112255879B (en) | 2020-11-02 | 2020-11-02 | Image disc capable of being used for holographic projection and high-cost-performance holographic projection display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011202744.3A CN112255879B (en) | 2020-11-02 | 2020-11-02 | Image disc capable of being used for holographic projection and high-cost-performance holographic projection display device |
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| CN112255879A true CN112255879A (en) | 2021-01-22 |
| CN112255879B CN112255879B (en) | 2022-10-11 |
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