Holographic projection equipment for projector imaging

Abstract

The utility model belongs to the technical field of holographic projection, and particularly discloses holographic projection equipment for projector imaging, which comprises a bracket, and an imaging assembly, imaging paper, a light path reflecting lens and a light-emitting assembly which are fixed on the bracket, the light-emitting assembly is horizontally placed on the support, light emitted by the light-emitting assembly irradiates on the light path reflection lens, is reflected by the light path reflection lens and irradiates on the imaging paper above the light path reflection lens, and the light is projected to the imaging assembly through the imaging paper to form holographic projection imaging. The problem that divergent light cannot form clear imaging in traditional holographic projection is solved, the teaching efficiency and the visual effect are improved, zooming-in and zooming-out can be carried out according to actual needs, and the applicability and flexibility of the holographic projection technology are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of holographic projection, and particularly relates to a holographic projection device for projector imaging. Background Art

[0002] The mainstream projectors on the market are LCD projectors and DLP projectors. The DLP projection system uses a DMD (Digital Micromirror Device: an optical micro-electro-mechanical system (MEMS: micro-electrical-mechanical-system), which consists of an array of high-reflectivity micromirrors) as the core display element. By controlling the reflection angle of the micromirrors, the light switch is realized to achieve the brightness and darkness of the screen. The single-chip type needs to have a color separation system to achieve color display through timing control. The LCD projection system is based on the principle of polarized light, and uses the polarization conversion effect of the liquid crystal panel to control the light switch to achieve the brightness and darkness of the screen. With the development of technology, the current new LCD projectors can have the same high brightness as DLP while ensuring good image quality and good color restoration.

[0003] At present, holographic projection technology has achieved great applications in the military field, education field, exhibition field, and medical field. Many museums and science and technology museums use holographic projection and other technologies to digitize exhibits, and the three-dimensional images formed in the air are sometimes even clearer than the real objects, which is convenient for visitors to appreciate. However, the current holographic projection devices are all very large in scale, expensive in cost, and not very applicable.

[0004] In view of this, the utility model proposes a holographic projection device for projector imaging. Content of the Utility Model

[0005] The purpose of the utility model is to provide a holographic projection device for projector imaging, which is small in scale, can solve the problem of insufficient indoor space, and is low in cost and can be applied to a variety of different scenarios.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] In a first aspect, the utility model provides a holographic projection device for projector imaging, including a bracket and an imaging component, an imaging paper, an optical path reflection lens, and a light-emitting component fixed on the bracket;

[0008] The light-emitting component is horizontally placed on the bracket, and the light emitted by the light-emitting component irradiates on the optical path reflection lens. After being reflected by the optical path reflection lens, it irradiates on the imaging paper above the optical path reflection lens, and the light passes through the imaging paper and projects onto the imaging component to form a holographic projection image.

[0009] As a preferred technical solution of the utility model, the optical path reflection lens is placed at a 45° inclination in the horizontal position of the bracket.

[0010] As a preferred technical solution of the present utility model, the light-emitting component includes a projector, and the projector is an LCD high-brightness projector, which provides a light source based on the LCD high-brightness projector.

[0011] As a preferred technical solution of the present utility model, the optical path reflection lens is a silver-plated mirror, and the size and direction of the holographic projection imaging are determined by adjusting the distance between the optical path reflection lens and the light-emitting component.

[0012] As a preferred technical solution of the present utility model, the imaging paper includes sulfuric acid paper, which absorbs the divergent light and emits parallel light, and the parallel light acts on the imaging component.

[0013] As a preferred technical solution of the present utility model, the imaging component includes a frustum-shaped structure formed by bonding four isosceles trapezoidal acrylic plates. The frustum-shaped structure is narrower at the bottom and wider at the top, and its size is adapted to and fixed with the bracket.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] By adjusting the optical path and using the imaging paper, the present utility model solves the problem that divergent light cannot form a clear image in traditional holographic projection, improves the teaching efficiency and visual effect, can also be enlarged and reduced according to actual needs, improves the applicability and flexibility of the holographic projection technology, and as a teaching aid with imaging quality, portability, simplicity of operation and multi-scene application, it is also applicable to commercial displays and other occasions that require 3D visual effects. Description of the Drawings

[0016] Figure 1 It is a structural framework diagram of a holographic projection device for projector imaging of the present utility model;

[0017] Figure 2 It is an optical system diagram of a holographic projection device for projector imaging of the present utility model;

[0018] In the figure: 1. Imaging component, 2. Imaging paper; 3. Optical path reflection lens; 4. Light-emitting component; 5. Bracket. Detailed Embodiments

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0021] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0022] Embodiment 1

[0023] As Figure 1-2 shown, this embodiment provides a holographic projection device for projector imaging, including a bracket 5 and an imaging component 1, an imaging paper 2, an optical path reflection lens 3, and a light-emitting component 4 installed on the bracket 5;

[0024] The light-emitting component 4 is horizontally placed on the bracket 5. The light emitted by the light-emitting component 4 irradiates on the optical path reflection lens 3 placed at an angle of 45°. After being reflected by the optical path reflection lens 3, it irradiates on the imaging paper 2 above the optical path reflection lens 3. The light passes through the imaging paper 2 and is projected onto the imaging component 1 to form a holographic projection image.

[0025] Specifically, the light-emitting component 4 provides brightness through a number of light sources, extends the total optical path based on the optical path reflection lens 3, increases the imaging size, and at the same time changes the optical path direction to adapt to the holographic imaging instrument. The imaging paper 2 changes the light property, absorbs the divergent light, and emits parallel light. The imaging component 1 reflects the parallel light to achieve the holographic projection imaging effect. Based on the bracket 5 for fixing the projection device, it is suitable for small-scale application scenarios, such as teaching use.

[0026] Furthermore, the light-emitting component 4 includes a projector, the projector is an LCD high-brightness projector, and the projector material is a special holographic projection material. Specifically, the light-emitting component 4 provides the light source, which is the basis for imaging;

[0027] Furthermore, the optical path reflection lens 3 is a silver-plated mirror. For the light emitted by the optical path reflection lens 3, by adjusting the distance from the light-emitting component 4, the optical path can be changed, thereby affecting the size and direction of the holographic projection image;

[0028] The imaging paper 2 is made of sulfuric acid paper. Based on the imaging paper 2, it changes the property of light, absorbs the divergent light and emits parallel light, providing the necessary light conditions for holographic imaging.

[0029] The imaging component 1 includes a frustum-shaped structure formed by gluing four isosceles trapezoidal acrylic plates. The frustum-shaped structure is narrower at the bottom and wider at the top, and its size is adapted to and fixed with the bracket 5. The bracket 5 needs to be able to fix the above components to ensure the stability and portability of the device, and the operation is simple. The specific dimensions include the bottom: height: top as 13:45.5:78, and the corresponding dimensions of the bracket 5 are: the frame is 80 cm × 80 cm, and the height is 120 cm.

[0030] Furthermore, the bracket 5 is made of European standard 2020 aluminum alloy material.

[0031] In summary, the holographic projection device provided in this embodiment can be enlarged and reduced according to actual needs, further improving the applicability of the holographic projection technology. Only the distance between the light-emitting component 4 and the optical path reflecting lens 3 needs to be ensured to ensure the size of the path reflected by the optical path reflecting lens 3 and irradiated on the imaging paper 2. Use the reflecting lens to extend the optical path and enlarge the imaging size; use the imaging paper to form a secondary image to solve the problem that divergent light cannot form a holographic projection; and then the holographic projection imaging projected onto the imaging component 1 can be projected normally, improving the teaching efficiency, and can also be applied to other visualization scenarios, such as exhibition stands, advertisements and other scenarios. In addition, the holographic projection device solves the problem that 3D display cannot be achieved in the traditional teaching process.

[0032] Embodiment 2: The scale of the current holographic projection devices on the market is very large, and most of them are used in exhibition halls or commercial performances, and have not been applied in various small-scale activity types, such as classroom teaching. The holographic projection device described in this embodiment is mainly used for the 3D display of trees in tree pruning teaching. This embodiment can realize the free switching of multiple tree materials. The imaging component described in this embodiment is made of acrylic plate, and the acrylic plate has high transparency and is not easy to deform; the imaging paper uses sulfuric acid paper, which has pure paper quality, high strength, good transparency, no deformation, sun resistance, high temperature resistance, and anti-aging; the optical path reflecting mirror surface uses a silver-plated mirror, and the silver-plated mirror is more waterproof and moisture-proof than the aluminum mirror, and can be illuminated more clearly and brightly. The projector uses an LCD high-light projector, which has good image quality, good color restoration, and high brightness; the bracket is made of European standard 2020 aluminum alloy, which is stable and not easy to deform, and has high support strength. During the experiment, various materials and components performed excellently and stably, and the final imaging effect was good, and it has been put into teaching use.

[0033] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A holographic projection device for projector imaging, characterized in that: It includes a bracket (5) and an imaging component (1), an imaging paper (2), an optical path reflection lens (3) and a light-emitting component (4) fixed on the bracket (5); The light-emitting component (4) is horizontally placed on the bracket (5). The light emitted by the light-emitting component (4) irradiates on the optical path reflection lens (3), and after being reflected by the optical path reflection lens (3), it irradiates on the imaging paper (2) above the optical path reflection lens (3). The light passes through the imaging paper (2) and is projected onto the imaging component (1) to form a holographic projection image.

2. A holographic projection device for projector imaging according to claim 1, characterized in that: The optical path reflection lens (3) is placed at a 45° inclination in the horizontal position of the bracket (5).

3. A holographic projection device for projector imaging according to claim 2, characterized in that: The light-emitting component (4) includes a projector, and the projector is an LCD high-brightness projector, which provides a light source based on the LCD high-brightness projector.

4. A holographic projection device for projector imaging according to claim 2, characterized in that: The optical path reflection lens (3) is a silver-plated mirror. By adjusting the distance between the optical path reflection lens (3) and the light-emitting component (4), the size and direction of the holographic projection image are determined.

5. A holographic projection device for projector imaging according to claim 4, characterized in that: The imaging paper (2) includes tracing paper, which absorbs divergent light and emits parallel light, and acts the parallel light on the imaging component (1).

6. The holographic projection device for projector imaging according to claim 1, wherein: The imaging component (1) includes a frustum-shaped structure formed by gluing four isosceles trapezoidal acrylic plates. The frustum-shaped structure is narrower at the bottom and wider at the top, and its size is adapted and fixed to the bracket (5).

Images