CN112698515B - Naked eye three-dimensional display imaging method and light field simulator - Google Patents
Naked eye three-dimensional display imaging method and light field simulator Download PDFInfo
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Abstract
The application relates to a naked eye three-dimensional display imaging method and a light field simulator, wherein the naked eye three-dimensional display imaging method comprises the following steps: s1, simulating the acquired light rays of the 3D object passing through all points a on the surface P: each light field simulator simulates the light ray of one point, corresponding to the point a, the light field simulator array forms a light field simulation screen, and corresponding to the P surface; s2, light rays displayed by a display screen of the light field simulator penetrate through the lens and are converged on an a ' point on one side of the lens far away from the display screen, and the light rays emitted by the a ' point have different colors and brightness in different directions, so that the light field of the a ' point can be simulated in a holographic manner; all points a 'form a light field simulation screen P', so that the light field of a real object is simulated, and the light field simulation screen can display naked eye three-dimensional images.
Description
Technical Field
The application relates to the technical field of naked eye three-dimensional display, in particular to a naked eye three-dimensional display imaging method and a light field simulator.
Background
The existing flat panel display mainly comprises an image processing module and a plurality of display modules controlled by the image processing module, wherein the image processing module breaks down a 3D object model to be displayed into a plurality of display units for display by the corresponding display modules.
However, the existing display module is mainly made of a two-dimensional display screen to realize two-dimensional image imaging, and the display displays flat two-dimensional images so that the stereoscopic impression of the images is poor, thereby causing the 3D object to have poor stereoscopic impression so as not to achieve the effect of naked eye three-dimensional display.
Disclosure of Invention
In order to realize that a three-dimensional image which can be observed by naked eyes is formed on the outer side of a display screen, the application aims to provide a naked eye three-dimensional display imaging method and a light field simulator.
In a first aspect, the application provides a naked eye three-dimensional display imaging method, which adopts the following technical scheme:
a naked eye three-dimensional display imaging method comprises the following steps:
s1, simulating the collected light rays of all points a of the 3D object on the surface P: the display screen simulates the light rays corresponding to the point a, and the plane array or the spherical array of the light field simulator forms a light field simulation screen;
s2, enabling light rays displayed on a display screen on the light field simulator to pass through the lens so as to enable the light rays to be converged on an a ' point on one side of the lens far away from the display screen, and simulating all the a ' points to form a simulated luminous scene P ';
and S3, observing the simulated luminous scene P 'at the side of the simulated luminous scene P' far from the display screen, namely enabling naked eyes to see the simulated three-dimensional stereoscopic light information of the 3D object.
By adopting the technical scheme, the light rays of the 3D object which are outwards diverged are collected and then displayed on the display screen corresponding to the light field simulator, the light rays displayed on the display screen are converged at the point a ' under the action of the lens, and all the points a ' are simulated to form the simulated luminous scene P ', so that the light field simulator can simulate the luminous field of the 3D object.
At this time, the user views the display screen from a side of the analog light emitting scene P 'away from the display screen, and the user cannot see the image on the display screen but can see only one light emitting point a', and when the point a 'is viewed from different angles, the point a' has different colors and brightnesses.
Therefore, the display screen and the lens cooperate to simulate all light information of the 3D object at the point a, so that a holographic simulation effect is achieved, and the naked eye three-dimensional display imaging method can achieve a naked eye three-dimensional display effect.
Optionally, when the simulated luminous scene P 'is observed, the light field simulator rotates along its center, so that the moving track of the point a' where the lenses converge is circularly arranged or traverses the sphere.
By adopting the technical scheme, each display screen and the corresponding lens on the light field simulator are matched to simulate the light field of one point, each point is like a pixel, and a plurality of points are on a plane, so that a picture can be formed, and the picture is like a window. The number of displays and the number of lenses required to make up such a "window" is enormous. For example, 2073600 "pixels", i.e., 2073600 displays and corresponding lenses, are required to achieve a resolution of 1920x 1080. The rotation can utilize three-dimensional vision residues of human eyes to enable the multi-point luminous fields to be seen by the human eyes at the same time, so that the resolution of the inner spherical surface of the simulated luminous field is improved, the number of display screens and the number of lenses can be greatly reduced, and the practicability of the light field simulator is improved.
Alternatively, the light field simulator reciprocates in a translational plane while observing the simulated luminous scene P'.
By adopting the technical scheme, the optical field simulator can reciprocate in any direction in the translation plane, and the visual residual effect similar to rotation can be realized, so that the resolution of the simulated luminous field on the inner spherical surface is improved, the number of display screens and the number of lenses can be greatly reduced, and the practicability of the optical field simulator is improved.
In a second aspect, the present application provides a light field simulator, which adopts the following technical scheme:
the light field simulator is arranged in a spherical shape, and comprises a mounting frame which is arranged in a hollow spherical shape, wherein an image processing module is mounted in the mounting frame, a plurality of display modules controlled by the image processing module are coated on the outer spherical surface of the mounting frame, the display modules are spliced into a spherical shape in sequence, each display module comprises a display screen and a lens arranged on the display screen, one surface of the display screen, which is far away from the mounting frame, is a display surface, and the lens is positioned on the display surface;
the image processing module is used for displaying the acquired light rays of the 3D object at the point a1 on the spherical surface P1 on the display surface of the corresponding display screen;
the lens is used for converging the light rays displayed on the display surface at the point a1', all the points a1' are simulated to form a simulated luminous field spherical surface P1', and the spherical surface P1' is positioned at the outer side ' of the display screen.
By adopting the technical scheme, the light rays of the 3D object which are outwards diverged are collected and then displayed on the display screen corresponding to the light field simulator, the light rays displayed on the display screen are converged at the point a1' under the action of the lens, and the simulated luminous field spherical surface P1' is formed by simulating all the points a1', so that the light field simulator can simulate the luminous field of the 3D object.
At this time, the user views the display screen from a side of the simulated light emitting field spherical surface P1 'away from the display screen, the user cannot see the image on the display screen, but only one light emitting point a1', and when the point a1 'is viewed from different angles, the point a1' has different colors and brightnesses.
Therefore, the display screen and the lens cooperate to simulate all light information of the 3D object at the point a1, so that a holographic simulation effect is achieved, and the naked eye three-dimensional display imaging method can achieve a naked eye three-dimensional display effect.
Optionally, the light field simulator has two rotation axes, and both the two rotation axes pass through the sphere center of the light field simulator, and each display screen ray traverses a sphere corresponding to the converged a1' point running track.
By adopting the technical scheme, each display screen and the corresponding lens on the light field simulator are matched to simulate the light field of one point, each point is like a pixel, and a plurality of points are on a spherical surface, so that a picture can be formed, and the picture is like a window. The number of displays and the number of lenses required to make up such a "window" is enormous. For example, 2073600 "pixels", i.e., 2073600 displays and corresponding lenses, are required to achieve a resolution of 1920x 1080. The bidirectional rotation can utilize three-dimensional vision residues of human eyes to enable the multi-point luminous fields to be seen by the human eyes at the same time, so that the resolution of the inner spherical surface of the simulated luminous field is improved, the number of display screens and the number of lenses can be greatly reduced, and the practicability of the light field simulator is improved.
Optionally, the display screen upper cover is equipped with the lens hood, the display surface of display screen with the lens all is located the lens hood, the lens hood has been seted up and has been supplied a1' the light trap that the light passed.
Through adopting above-mentioned technical scheme, the setting of light trap for the a1 'point light that the light field simulator simulated can only show in the position that the light trap is located, thereby makes the position of a1' point keep stable, even when the position of display screen is not in being used for same sphere, as long as all a1 'point light all jets out at the light trap that corresponds the light trap through the control, can stably realize the simulation and form simulation luminous field sphere P1'.
In a third aspect, the present application provides a light field simulator, which adopts the following technical scheme:
the light field simulator is arranged in a flat plate shape and comprises a mounting frame which is arranged in a flat plate shape, an image processing module is arranged in the mounting frame, a plurality of display modules controlled by the image processing module are arranged on one surface of the mounting frame in an array manner, the display modules are spliced in sequence, each display module comprises a display screen and a lens arranged on the display screen, one surface of the display screen away from the mounting frame is a display surface, and the lens is positioned on the display surface;
the image processing module is used for displaying the acquired light rays of the 3D object at the point a2 on the plane P2 on the display surface of the corresponding display screen;
the lens is used for converging the light rays displayed on the display surface at an a2 'point, all the a2' points are simulated to form a simulated luminous field plane P2', and the plane P2' is positioned on one side of the lens away from the mounting frame.
By adopting the technical scheme, the light rays of the 3D object which are outwards diverged are collected and then displayed on the display screen corresponding to the light field simulator, the light rays displayed on the display screen are converged at the a2' point under the action of the lens, and the a2' points are simulated to form the simulated luminous field plane P2', so that the light field simulator can simulate the luminous field of the 3D object.
At this time, the user views the display screen from a side of the analog light-emitting field plane P2 'away from the display screen, and the user cannot see the image on the display screen, but only can see one light-emitting point a2', and when viewing this a2 'point from different angles, the a2' point has different colors and brightnesses.
Therefore, the display screen and the lens cooperate to simulate all light information of the 3D object at the point a2, so that a holographic simulation effect is achieved, and the naked eye three-dimensional display imaging method can achieve a naked eye three-dimensional display effect.
Optionally, the light field simulator is provided with a rotation axis, the rotation axis is perpendicular to the surface of the mounting frame where the display screen is located, the rotation axis passes through the center of the light field simulator, and each display screen light ray corresponds to the converged a2' point running track and is in a circular arrangement.
By adopting the technical scheme, each display screen and the corresponding lens on the light field simulator are matched to simulate the light field of one point, each point is like a pixel, and a plurality of points are on the same plane, so that a picture can be formed, and the picture is like a window. The number of displays and the number of lenses required to make up such a "window" is enormous. For example, 2073600 "pixels", i.e., 2073600 displays and corresponding lenses, are required to achieve a resolution of 1920x 1080. The bidirectional rotation can utilize three-dimensional vision residues of human eyes to enable the multi-point luminous fields to be seen by the human eyes at the same time, so that the resolution of the simulation luminous fields on the plane is improved, the number of display screens and the number of lenses can be greatly reduced, and the practicability of the light field simulator is improved.
Optionally, the translation surface and a surface on which the display screen is located on the mounting frame are translation surfaces, and the light field simulator reciprocally translates in the translation surfaces.
By adopting the technical scheme, the optical field simulator can reciprocate in any direction in the translation plane, and the visual residual effect similar to rotation can be realized, so that the resolution of the simulated luminous field on the inner spherical surface is improved, the number of display screens and the number of lenses can be greatly reduced, and the practicability of the optical field simulator is improved.
Optionally, the display screen upper cover is equipped with the lens hood, the display surface of display screen with the lens all is located the lens hood, the lens hood has been seted up and has been supplied a2' the light trap that the point light passed.
Through adopting above-mentioned technical scheme, the setting of light trap on the lens hood for the position of the a2' point light that the light field simulator simulated remains stable, even when the position of display screen is not in the coplanar, as long as all a2' point light all jets out at the light trap that corresponds the lens hood through the control, can stably realize the simulation and form simulation luminous field plane P2'.
In summary, the beneficial technical effects of the application are as follows:
the light rays of the 3D object which are outwards scattered are collected on the surface P and then displayed on a display screen corresponding to the light field simulator, the light rays displayed on the display screen are converged at the point a ' under the action of the lens, and all the points a ' are simulated to form a simulated luminous scene P ', so that the light field simulator can simulate the luminous field of the 3D object; at this time, the user views the display screen from a side of the simulated luminous scene P 'away from the display screen, the user cannot see the image on the display screen, but only can see one luminous point a', and when the point a 'is viewed from different angles, the point a' has different colors and brightnesses; therefore, the display screen and the lens cooperate to simulate all optical information of the 3D object at the point a, so that a holographic simulation effect is achieved, and the naked eye three-dimensional display imaging method can realize the effect of naked eye three-dimensional display;
2. each display screen and the corresponding lens on the light field simulator cooperate to simulate the light field of one point, each point is like a pixel, and a plurality of points are on the same plane, so that a picture can be formed, and the picture is like a window. The number of displays and the number of lenses required to make up such a "window" is enormous. For example, 2073600 "pixels", i.e., 2073600 displays and corresponding lenses, are required to achieve a resolution of 1920x 1080. The rotation can utilize three-dimensional vision residues of human eyes to enable the multi-point luminous field to be seen by the human eyes at the same time, so that the resolution on the inner face of the simulated luminous field is improved, the number of display screens and the number of lenses can be greatly reduced, and the practicability of the light field simulator is improved.
Drawings
FIG. 1 is a schematic view of a 3D object luminous field at a spherical surface P1;
FIG. 2 is a schematic diagram of an illuminant field at an analog sphere P1' according to an embodiment of the present application;
FIG. 3 is a ray analysis diagram of the 3D object luminous field at sphere P1;
FIG. 4 is a ray analysis diagram of a simulated luminous field of a display module according to an embodiment of the present application;
FIG. 5 is a ray analysis diagram of an exemplary luminous field according to an embodiment of the present application;
FIG. 6 is a graph illustrating a ray rotation analysis of an analog luminous field according to an embodiment of the present application;
FIG. 7 is a schematic diagram of a rotation mode according to an embodiment of the present application;
FIG. 8 is a schematic view of the 3D object luminous field at plane P2;
FIG. 9 is a schematic diagram of the light field at the second simulation plane P2' according to the embodiment of the present application;
FIG. 10 is a ray analysis diagram of the 3D object luminous field at plane P2;
FIG. 11 is a ray analysis diagram of a simulated luminous field of a second display module according to an embodiment of the present application;
FIG. 12 is a schematic diagram of a translation mode according to a second embodiment of the present application;
FIG. 13 is a schematic diagram of a simulation of a third display module according to an embodiment of the present application;
FIG. 14 is a schematic diagram of a simulation of a fourth display module according to an embodiment of the present application;
FIG. 15 is a schematic view of the range of a single display module simulation of the present application;
FIG. 16 is a range entity diagram of a plurality of display modules of the present application in common simulation.
In the figure, 1, a mounting rack; 2. a display screen; 3. a lens; 4. a light shield; 41. light holes.
Detailed Description
The present application will be described in further detail with reference to fig. 1-16.
The embodiment of the application discloses a light field simulator.
Example 1
Referring to fig. 1, each point on the 3D object emits light to the surroundings, and the sum of these light rays is called a luminous field in which the 3D object is visible to the human eye. The luminous field can be regarded as being constituted by a plurality of facets P.
Referring to fig. 1 and 2, if a light-emitting field spherical surface P1' of a 3D object is simulated to be outward by a light field simulator on a spherical surface P1 of the light-emitting field, the spherical surface P1' coincides with the spherical surface P1 in position, a human eye can also feel the 3D object at the spherical surface P1', so that the effect of naked eye 3D display is achieved.
Referring to fig. 3, in order to simulate the luminescence field of a 3D object on the spherical surface P1, the case of any point a1 on the spherical surface P1 is analyzed first, and the luminescence field passing through the point a1 is shown in fig. 3.
Referring to fig. 4, the 3D object luminous field of point a1 can be simulated by the display screen 2 and the lens 3. The focal point of the lens 3 is a1, and the light emitted by the display screen 2 passes through the point a1 after being refracted by the lens 3. The display screen 2 displays a specific image, and the 3D object luminous field at the point a1 can be simulated through the light at the point a1.
Referring to fig. 5, a plurality of display screens 2 form a spherical array, i.e. a light emitting field of multiple points on the spherical surface P1 can be simulated. However, limited by the minimum size of the display 2, the distance between the dots is relatively large, and the "resolution" of the simulated luminous field is not high.
Referring to fig. 6, the display 2 array is rotated in two directions, and the display 2 emits light multiple times, simulating a multi-point light emitting field on the spherical surface P1. Due to the visual residue of the human eye, the multi-point luminous field can be seen by the human eye as 'simultaneous', so that the 'resolution' of the simulated luminous field can be improved. When the "resolution" is high enough, the human eye can see the 3D object more clearly.
Referring to fig. 5 and 6, in order to achieve the above-mentioned purpose of naked eye three-dimensional imaging in the first embodiment, the first embodiment discloses a light field simulator with spherical arrangement. The light field simulator comprises a mounting frame 1 which is arranged in a hollow spherical shape, wherein an image processing module is mounted in the mounting frame 1, a plurality of display modules controlled by the image processing module are coated on the outer spherical surface of the mounting frame 1, and the display modules are spliced into a spherical shape in sequence. Each display module comprises a display screen 2 and a lens 3 arranged on the display screen 2, wherein one surface, far away from the mounting frame 1, of the display screen 2 is a display surface, and the lens 3 is positioned on the display surface. The display screen 2 is used for a display screen 2 for two-dimensional imaging, such as a liquid crystal display screen 2 or the like. The lens 3 is a convex lens, a concave lens or a lens group, and the lens group is formed by combining the convex lens and the concave lens.
The image processing module is used for displaying the acquired light rays of the 3D object passing through the point a1 on the spherical surface P1 on the display surface of the display screen 2. Specifically, the light data of the 3D object at the point a1 on the spherical surface P1 may be obtained by photographing, modeling, or the like, and then the data of this part is input to the image processing module to be displayed on the display surface of the display screen 2 by the image processing module. All the light rays of the display surface are converged into a1 'point under the action of the corresponding lens 3, and all the a1' points are simulated to form a simulated luminous field spherical surface P1', and the spherical surface P1' coincides with the spherical surface P1, so that the light field simulator can simulate a 3D object luminous field.
Referring to fig. 6 and 7, when the light field simulator rotates bidirectionally, the mounting frame 1 driven to rotate by external force rotates along two rotation axes, the two rotation axes are perpendicular to each other, and both the two axes pass through the center of sphere of the light field simulator mounting frame 1. The mounting frame 1 rotates to drive the display screen 2 to rotate, so that each a1 'point rotates, and therefore three-dimensional vision residues of human eyes can be utilized to enable a multi-point luminous field to be seen by human eyes' simultaneously ', and the resolution of an inner spherical surface P1' of an analog luminous field is improved.
The naked eye three-dimensional display imaging method adopting the first embodiment comprises the following steps:
s1, simulating the collected light rays of all points a1 of the 3D object on the spherical surface P1: each display screen 2 on the light field simulator simulates light rays of point a, and the display screens 2 are spherically distributed so that the simulated directions of the display screens are spherically emitted.
S2, light rays displayed by the display screen 2 pass through the corresponding lenses 3 so that the light rays are converged on a1 'point on one side, away from the display screen 2, of the lenses 3, the quantity of the a1' points formed by converging all the display screen 2 and the display modules matched with the corresponding lenses 3 is the same as that of the a1 'points, all the a1' points are simulated to form simulated luminous field spherical surfaces P1', the spherical surfaces P1' are overlapped with the spherical surfaces P1 in position, and the light rays emitted by the a 'points have different colors and brightness in different directions, so that a light field of the a' point can be simulated in a holographic mode, and the light field simulation screen can display naked eye three-dimensional stereoscopic images.
S3, observing the simulated luminous field spherical surface P1 'at one side of the simulated luminous field spherical surface P1' far away from the display screen 2, and rotating the mounting frame 1 to drive the display screen 2 to rotate, so that each a1 'point rotates, and using vision residues, one light field simulator can simulate each a1' point, thereby reducing the distance between the light field simulators, reducing the number of the light field simulators, increasing the practicability of the method, and enabling a user to see simulated 'holographic' three-dimensional stereoscopic light information of a 3D object by naked eyes through observing the spherical surface P1 'at the outer side of the simulated luminous field spherical surface P1'.
Example two
Referring to fig. 8, the second embodiment is different from the first embodiment in that the light emitting scene P to be simulated in the present embodiment is a plane P2.
Referring to fig. 8 and 9, if the plane P2' of the light field of the 3D object is simulated by the light field simulator on the plane P2, the plane P2' coincides with the plane P2 in position, the human eye can also feel the 3D object at the plane P2', so as to achieve the effect of naked eye 3D display.
Referring to fig. 10, in order to simulate the luminescence field of the 3D object on the plane P2, the case of any point a2 on the plane P2 is analyzed first, and the luminescence field passing through the point a2 is shown in fig. 3.
Referring to fig. 11, the 3D object luminous field of point a2 can be simulated by the display screen 2 and the lens 3. The focal point of the lens 3 is a2', and the light emitted by the display screen 2 passes through the point a2' after being refracted by the lens 3. The display screen 2 displays a specific image, and the 3D object luminous field at the point a2 'can be simulated through the light at the point a2'.
Referring to fig. 11 and 12, in order to achieve the above-mentioned purpose of naked eye three-dimensional imaging in the second embodiment, the second embodiment discloses a light field simulator arranged in a flat plate shape. The light field simulator comprises a mounting frame 1 which is arranged in a flat plate shape, an image processing module is mounted in the mounting frame 1, and a plurality of display modules controlled by the image processing module are arranged on one surface of the mounting frame 1 in an array manner. One surface of the mounting frame 1 is a mounting surface, and all display modules are spliced on the mounting surface in sequence to form planar matrix distribution. Each display module comprises a display screen 2 and a lens 3 arranged on the display screen 2, wherein one surface, far away from the mounting frame 1, of the display screen 2 is a display surface, and the lens 3 is positioned on the display surface. The display screen 2 is used for a display screen 2 for two-dimensional imaging, such as a liquid crystal display screen 2 or the like. The lens 3 is a convex lens, a concave lens or a lens group, and the lens group is formed by combining the convex lens and the concave lens.
The image processing module is used for displaying the acquired light rays of the 3D object passing through the point a2 on the plane P2 on the display surface of the display screen 2. Specifically, the light data of the 3D object at the point a2 on the plane P2 may be obtained by photographing, modeling, or the like, and then the data of this part is input to the image processing module to be displayed on the display surface of the display screen 2 by the image processing module. All the light rays of the display surface are converged into a2 'point under the action of the corresponding lens 3, and all the a2' points are simulated to form a simulated luminous field plane P2', and the plane P2' coincides with the plane P2 in position, so that the light field simulator can simulate the luminous field of a 3D object.
With continued reference to fig. 12, the light field simulator in the second embodiment can also achieve an improvement in the "resolution" of the plane P2' by rotation. The mounting frame 1 driven to rotate by external force rotates along a rotation axis, and the rotation axis is perpendicular to the mounting surface of the mounting frame 1, wherein the mounting surface is the translation surface of the light field simulator. The axis of rotation passes through the centre of the mounting 1. The light field simulator translates in any direction in the plane where the mounting surface on the mounting frame 1 is located, so that each a2' point translates in a translation mode. Thus, the three-dimensional vision of human eyes can be utilized to enable the multi-point luminous field to be seen by human eyes ' simultaneously ', so that the resolution of the analog luminous field on the plane P2' is improved. In this embodiment, the plane of the light field simulator is disposed along a vertical direction, so that the light rays generated by the light field simulator can reciprocate along an up-down direction and reciprocate along a horizontal extension direction of the translation plane, and a moving path of the simulated luminous field P2' is generally in an 8-shaped arrangement.
The naked eye three-dimensional display imaging method adopting the second embodiment comprises the following steps:
s1, simulating the collected light rays of all points a2 of the 3D object on a plane P2: each display screen 2 on the light field simulator simulates light rays of point a, and the display screens 2 are distributed in a plane so that the simulated directions of the display screens are outwards emitted from a plane.
S2, light rays displayed by the display screen 2 pass through the corresponding lenses 3 so that the light rays are converged on a2 'point on one side, away from the display screen 2, of the lenses 3, the quantity of the a2' points formed by converging all the display screen 2 and the display module matched with the corresponding lenses 3 is the same as that of the a2 'points, the positions of the plane P2' and the plane P2 'of the simulated luminous field are overlapped by simulating all the a2' points, and the light rays emitted by the a 'points have different colors and brightness in different directions, so that a light field of the a' point can be simulated in a holographic mode, and the light field simulation screen can display naked eye three-dimensional images.
S3, observing the simulated luminous field plane P2' at one side of the simulated luminous field plane P2' far away from the display screen 2, translating the mounting frame 1 to drive the display screen 2 to reciprocate along the up-down direction and reciprocate along the horizontal extension direction of the translation surface, and enabling one light field simulator to simulate each point a2' by utilizing vision residues, so that the distance between the light field simulators is reduced, the number of the light field simulators is reduced, the practicability of the method is improved, and a user can see simulated ' holographic ' three-dimensional stereoscopic light information of a 3D object by naked eyes through the observation plane P2' at the outer side of the simulated luminous field plane P2'.
Example III
Referring to fig. 13, the differences between the third embodiment and the first embodiment and between the third embodiment and the second embodiment are as follows: the display module further comprises a light shield 4 covered on the display screen 2, and the display surface of the display screen 2 and the lens 3 are both positioned in the light shield 4.
The light shield 4 is provided with a light hole 41 for the light of the point a' to pass through. The display 2 and the lens 3 are matched to collect light rays, and the light rays are formed in the light holes 41. The user can reduce the interference of the display screen 2 on the light of the point a by observing the light of the point a' in the light transmitting hole 41.
Example IV
Referring to fig. 14, the fourth embodiment is different from the first embodiment, the second embodiment and the third embodiment in that: the display screen 2 may be arranged in an arc shape, and the display screen 2 is recessed toward a direction close to the mounting frame 1. The mounting frame 1 arranged in an arc shape can increase the display screen 2 to display more light information, so that the simulation range angle is increased.
It should be noted that:
referring to fig. 15, when the display module is any one of the first to fifth embodiments, the range can be divided into X, Y, Z three regions within the range of the simulation range of a single display module, the X region is located at a side of the display module away from the a ' point, the Y region is located between the display module and the a ' point, and the Z region is located at the a ' point.
Light rays (or reverse extensions of light rays) passing through point a from 3D objects within the simulation range will produce projections on the surface of the display screen 2. The light field simulator can simulate the light rays by displaying the projection image on the display screen 2. When the 3D object is located in the X region, the projection of the 3D object on the plane of the display screen 2 is smaller than the real object. When the 3D object is located in the Y area, the projection of the 3D object on the plane of the display screen 2 is larger than that of the real object. When the 3D object is located in the Z area, the projection of the 3D object on the plane of the display screen 2 is the reflection (upside down, left and right opposite directions) of the real object.
Referring to fig. 16, when a plurality of display modules are commonly displayed such that the analog ranges of the plurality of display modules intersect, the analog ranges of the plurality of display modules overlap to obtain a common analog region. At this time, the 3D object can be jointly simulated by a plurality of display modules, so as to achieve the simulation effect of high resolution and high definition.
The embodiments of the present application are all preferred embodiments of the present application, and are not intended to limit the scope of the present application, wherein like reference numerals are used to refer to like elements throughout. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component. Therefore: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (6)
1. The naked eye three-dimensional display imaging method is characterized by comprising the following steps of:
s1, simulating the collected light rays of all points a of the 3D object on the surface P: each display screen (2) on the light field simulator simulates light rays of a point a, when the spherical array of the light field simulator forms the light field simulation screen, the light field simulator rotates along the center of the light field simulation screen when the simulated luminous scene P 'is observed, so that the running track of the point a' converged by the lens (3) is circularly arranged or traverses the spherical surface;
when the plane array of the light field simulator forms a light field simulation screen, the light field simulator reciprocates in a translation plane when observing the simulated luminous scene P';
s2, light rays displayed by a display screen (2) on the light field simulator pass through the lens (3) so that the light rays are converged on an a ' point on one side of the lens (3) far away from the display screen (2), and all the a ' points are simulated to form a simulated luminous scene P ';
s3, observing the simulated luminous scene P 'at the side of the simulated luminous scene P' far from the display screen (2), namely, viewing the simulated three-dimensional stereoscopic light information of the 3D object by naked eyes.
2. The light field simulator is characterized by being in a spherical shape, and comprises a mounting frame (1) in a hollow spherical shape, wherein an image processing module is arranged in the mounting frame (1), a plurality of display modules controlled by the image processing module are arranged on the outer spherical surface of the mounting frame (1) in a coating mode, the display modules are spliced into a spherical shape in sequence, each display module comprises a display screen (2) and a lens (3) arranged on the display screen (2), one surface, far away from the mounting frame (1), of the display screen (2) is a display surface, and the lens (3) is positioned on the display surface;
the image processing module is used for displaying the acquired light rays of the 3D object at the point a1 on the spherical surface P1 on the display surface of the corresponding display screen (2);
the lens (3) is used for converging the light rays displayed on the display surface at a1' point, all the a1' points are simulated to form a simulated luminous field spherical surface P1', and the spherical surface P1' is positioned at the outer side ' of the display screen (2);
the light field simulator rotates along two rotation axes, the two rotation axes penetrate through the sphere center of the light field simulator, and each display screen (2) light ray traverses a sphere corresponding to the converged a1' point running track.
3. A light field simulator according to claim 2, characterized in that the upper cover of the display screen (2) is provided with a light shield (4), the display surface of the display screen (2) and the lens (3) are both positioned in the light shield (4), and the light shield (4) is provided with a light transmission hole (41) for the light of the point a1' to pass through.
4. The light field simulator is characterized by being arranged in a flat plate shape, the light field simulator comprises a mounting frame (1) arranged in a flat plate shape, an image processing module is arranged in the mounting frame (1), a plurality of display modules controlled by the image processing module are arranged on one surface of the mounting frame (1) in an array manner, the display modules are spliced in sequence, each display module comprises a display screen (2) and a lens (3) arranged on the display screen (2), one surface, far away from the mounting frame (1), of the display screen (2) is a display surface, and the lens (3) is positioned on the display surface;
the image processing module is used for displaying the acquired light rays of the 3D object at the point a2 on the plane P2 on the display surface of the corresponding display screen (2);
the lens (3) is used for converging the light rays displayed on the display surface at a2 'point, all the a2' points are simulated to form a simulated luminous field plane P2', and the plane P2' is positioned at one side, far away from the mounting frame (1), of the lens (3);
the light field simulator rotates along a rotation axis, the rotation axis is perpendicular to one surface of the mounting frame (1) where the display screen (2) is located, the rotation axis penetrates through the center of the light field simulator, and each display screen (2) light ray corresponds to the converged a2' point running track and is in circular arrangement.
5. A light field simulator according to claim 4, characterized in that the side of the mounting frame (1) on which the display screen (2) is located is a translation plane, in which the light field simulator is reciprocally translated.
6. The light field simulator according to claim 5, wherein the upper cover of the display screen (2) is provided with a light shield (4), the display surface of the display screen (2) and the lens (3) are both positioned in the light shield (4), and the light shield (4) is provided with a light transmission hole (41) for the light of the point a2' to pass through.
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| CN113791500A (en) * | 2021-09-16 | 2021-12-14 | 京东方科技集团股份有限公司 | Naked eye 3D display device |
| CN114040135B (en) * | 2021-11-05 | 2022-09-27 | 中国铁塔股份有限公司盐城市分公司 | Naked eye three-dimensional display device based on active light-emitting display technology |
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