CN112399169A - Projection array type naked-eye 3D display system - Google Patents

Abstract

The invention discloses a projection array type naked eye 3D display system; it is characterized in that; the system utilizes a plurality of projectors to form a projector array through certain arrangement and combination, images of all the projectors in the projector array are projected on the same special directional screen, the images of all the projectors are respectively gathered to different spatial positions of an effective viewing area through the transmission or reflection of the directional screen, and two eyes can respectively and only see the image projected on the screen by one different projector in the projector array at any spatial position of an audience in the effective viewing area. The invention is expected to really and ideally realize the naked-eye 3D viewing of a plurality of persons at the same time, and simultaneously, when the body of a viewer moves, the image changes correspondingly, thus really realizing the virtual reality feeling of being personally on the scene.

Description

Projection array type naked-eye 3D display system

Technical Field

The invention relates to the technical field related to 3D display, in particular to a projection array type naked-eye 3D display system.

Background

In the world, the currently studied naked eye 3D display technologies are basically based on the optical barrier type 3D technology, the lenticular lens 3D technology and the directional backlight 3D technology, and theoretically, these technologies only display the left and right 3D image frames to the left and right eyes of a person respectively, and are only the upgrade of various glasses 3D technologies, and not only have high requirements on the distance and position of an observer, but also have the same effect as glasses 3D, the image of the observer does not change when the observer moves the viewing angle, and is far from the naked eye 3D display technology which can truly restore the real world, even so that the above problems are that all the current naked eye 3D display technologies cannot be avoided, and therefore, the technology stays in the laboratory stage forever, people expect that the real naked eye 3D technology has not progressed for many years, even if the relatively mature lenticular naked-eye 3D technology is used, due to the complexity of technical implementation and too many limitations in use, the technology can only be used occasionally on rare personal products, and is only used on a small screen, and the technology has no possibility of being popularized in a large scale, and is unlikely to be expected to be applied to a large-scale display scene such as a cinema.

The naked eye 3D display is a threshold in the virtual reality technology, an effective solution is not available so far, and various naked eye 3D technologies cannot achieve the ideal effect that multiple people really and comfortably watch the naked eye 3D simultaneously and the image changes correspondingly after the body position is moved like the real world.

Disclosure of Invention

Therefore, in order to solve the above-mentioned deficiencies, the present invention provides a projection array type naked-eye 3D display system; the invention is expected to really and ideally realize that a plurality of people simultaneously watch naked eyes in a 3D manner, and when the body of a viewer moves, the image changes correspondingly, so that the virtual reality feeling of being personally on the scene is really realized.

The invention is realized in this way, construct a projection array type naked eye 3D display system, characterized by that;

the system utilizes a plurality of projectors to form a projector array through certain arrangement and combination, images of all the projectors in the projector array are projected on the same special directional screen, after the images are reflected by the directional screen, the images of all the projectors are respectively gathered to different spatial positions of an effective viewing area, and audiences can see the images projected by one projector on the screen at any spatial position in the effective viewing area by each eye, and most importantly, the images projected by two different projectors in the projector array are seen by the two eyes.

The projection array type naked eye 3D display system is characterized in that the projection array type naked eye 3D display system comprises a projection array, a projection array and a display screen; the projector array and the special directional screen can have the following specific implementation methods:

first, in the special projector array, size, position, luminance etc. of each projector camera lens can all carry out different changes according to the use scene of difference, accomplish between the camera lens to arrange closely as far as possible to increase the comfort level of watching.

The special directional screen can be made of a common convex lens or a Fresnel condenser lens, and the function of the transmission screen can be conveniently realized in such a way; the special reflective directional screen can be used as a concave spherical surface or a concave cylindrical surface, or other technical methods are adopted to specially manufacture the special directional reflective screen, so that the special directional reflective screen can be applied to various large-scale use scenes.

The invention has the following advantages: the invention provides a projection array type naked eye 3D display system; the invention is expected to really and ideally realize that a plurality of people simultaneously watch naked eyes in a 3D manner, and when the body of a viewer moves, the image changes correspondingly, so that the virtual reality feeling of being personally on the scene is really realized.

The invention solves a technical problem which is difficult to wrap around human beings for years in naked eye 3D development. By using the method and the system, the spectators can really see the 3D images close to the real world from the screen within a certain range, and the images can be correspondingly changed when the spectators move the watching positions, so that the virtual reality experience of naked eye 3D close to the real world and in the scene is brought.

Because the product of the invention can easily meet the requirement that a plurality of audiences watch naked-eye 3D at the same time, if the different designs of different application scenes are adopted, the product is hopefully applied to a plurality of scenes like cinema, advertisement, game, entertainment and the like in a large scale in the future, and can possibly replace the status of the existing personal 3D devices such as AR, VR and the like, and the product is applied to various aspects of virtual reality technology, and has extremely wide application prospect.

Drawings

FIG. 1 is a schematic diagram of a dedicated screen projection array type naked eye 3D optical device;

FIG. 2 is a schematic diagram of a lens condensing projector array naked eye 3D system;

FIG. 3 is a schematic diagram of a reflective projector array naked eye 3D system.

Detailed Description

The present invention will be described in detail with reference to fig. 1 to 3, and the technical solutions in the embodiments of the present invention will be clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides a projection array type naked eye 3D display system through improvement, and the system is expected to really and ideally realize that a plurality of persons simultaneously watch naked eyes in a 3D manner, and when the body of a viewer moves, the image changes correspondingly, so that the virtual reality feeling of being personally on the scene is really realized.

The basic principle of the invention is that a plurality of projectors are arranged and combined to form a projector array, images of all the projectors in the projector array are projected on a special directional screen similar to a concave spherical reflector, the images of all the projectors are respectively gathered to different spatial positions of an effective viewing area after being reflected by the directional screen, audiences can see the image projected by only one projector in the projector array by each eye at any spatial position in the area, and the images projected by different projectors in the projector array are respectively seen by two eyes.

The specific structure and use of the invention are described in detail below:

1. the invention discloses a naked eye 3D application solution based on a projector array and a special directional screen, which is characterized in that a projector array 1 is formed by utilizing a large number of projectors, images projected by each projector can be accurately focused on a specific space position of an effective viewing area under the action of a special directional screen 2, and when a viewer watches at any position, two eyes can only respectively see the images projected onto the screen by two different projectors in the projector array at the same time.

2. The specific optical principle of the present invention is to use a huge condenser-like light-gathering effect to accurately focus the lens of each projector as an object onto each corresponding spatial point within a specific range of the effective viewing area.

3. The special screen of the invention can have the following specific realization methods:

firstly, the function of the transmission type screen can be conveniently realized by a common convex lens or Fresnel condenser method.

The other is a reflective special screen which can be made into a screen similar to a concave spherical screen or a concave cylindrical screen or other special directional screens and can be applied to various large-scale use scenes.

In short, the special screen of the invention can be effectively solved by a plurality of technical schemes, for example, a high-precision complex condenser lens can be used, and the special screen can also be realized by a high-precision concave spherical surface reflecting lens, a concave cylindrical surface reflecting lens and the like, so that the technical problems are not too many.

FIG. 1 is a schematic diagram of a projection array type naked-eye 3D optical system for a special transmission screen;

is a projector array.

The special screen can be produced in the mode of convex lens or Fresnel condenser lens, and the projector array can be used

The projection of each machine in (a) is focused separatelyIn focus to the active viewing area

At the corresponding position on the board.

Viewing zone, viewing range and projector array

Correspondingly, the larger the number of projectors in the projector array, the larger the viewable range.

Fig. 2 shows application example 1: a schematic diagram of a convex lens condensing type projector array naked eye 3D system; in the figure:

the projector array is composed of a plurality of projectors, wherein different arrangement modes of the projectors determine the distribution range of the effective viewing area.

The special directional screen with the light-gathering effect can be produced in a Fresnel lens mode, and light rays projected by the projector array can be accurately focused to different places of an effective viewing area.

The viewer can see naked eye 3D images in the effective viewing area, and can see images projected by different projectors when moving in the vertical, horizontal and left directions, so that a naked eye 3D effect capable of being movably viewed is generated.

Fig. 3 shows application example 2: schematic diagram of a reflective projector array naked eye 3D system; in fig. 3:

is a transverse projector array;

the special directional screen with horizontal light-gathering effect can accurately focus the light rays projected by each projector in the projector array to different left and right banded regions of the effective viewing area respectively, and vertically scatter light of each point by adopting a micro-cylindrical lens vertical scattering mode in the longitudinal direction, so that normal viewing in the vertical direction can be met by only one row of projectors.

The viewer can see the 3D images projected by different projectors in all directions in the area, and the viewed images can be correspondingly changed when the viewer moves the viewing position in the left-right direction. Wherein 4 is a screen base layer, and 5 is a vertical scattering reflecting layer of the micro-column mirror.

The patent has the advantages that; the invention solves a technical problem which is difficult to wrap around human beings for years in naked eye 3D development. By using the method and the system, the spectators can really see the 3D images close to the real world from the screen within a certain range, and the images can be correspondingly changed when the spectators move the watching positions, so that the virtual reality experience of naked eye 3D close to the real world and in the scene is brought.

Because the product of the invention can easily meet the requirement that a plurality of audiences watch naked-eye 3D at the same time, if the different designs of different application scenes are adopted, the product is hopefully applied to a plurality of scenes like cinema, advertisement, game, entertainment and the like in a large scale in the future, and can possibly replace the status of the existing personal 3D devices such as AR, VR and the like, and the product is applied to various aspects of virtual reality technology, and has extremely wide application prospect.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (3)

1. A projection array type naked eye 3D display system is characterized in that; the system utilizes a plurality of projectors to form a projector array (1) through certain arrangement and combination, images of all the projectors in the projector array are projected on the same specially designed special directional screen (2), the images of all the projectors are respectively gathered to different spatial positions of an effective viewing area after being transmitted or reflected by the directional screen, and audiences can see the images projected by only one projector at any spatial position in the effective viewing area, and the images projected by two different projectors in the array can be seen by two eyes respectively.

2. The projection array type naked eye 3D display system according to claim 1, wherein; in the special projector array, the size, the position, the brightness and the like of each projector lens can be changed differently according to different use scenes, and the lenses are arranged closely as much as possible to increase the watching comfort.

3. The projection array type naked eye 3D display system according to claim 1, wherein; the special directional projection screen has the following specific implementation methods;

the special transmission-type screen can be produced by using a common convex lens or Fresnel condenser method, and the basic functions of the special transmission-type directional screen can be conveniently realized;

the other is a reflective special screen which can be made into a directional screen similar to a concave spherical surface or a concave cylindrical surface reflector, or a special directional reflective screen specially made by adopting other optical technologies, and can be applied to various large-scale use scenes.

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