Far image imaging system

Abstract

The utility model belongs to the field of optical imaging, and particularly relates to a far-image imaging system, which comprises a light source serving as a light source of the far-image imaging system; the spectroscope is arranged opposite to the light source, light emitted by the light source enters the spectroscope to form a first effective light path and a first ineffective light path, and the light is reflected by the spectroscope to form the first effective light path; the curved reflector is arranged opposite to the spectroscope, the curved reflector comprises a substrate layer and a reflecting layer, the substrate layer is arranged at the bottom of the curved reflector, the reflecting layer is arranged on the substrate layer, the thickness of the substrate layer is larger than that of the reflecting layer, and light of the first effective light path enters the curved reflector, is reflected and then exits towards the spectroscope. Light rays are transmitted through the light splitting film to form the second effective light path, a first image with the preset focal plane depth is formed at the watching position, and the preset distance is larger than 1 m.

Description

Technical Field

[0001] The utility model belongs to the field of optical imaging, and particularly relates to a tele-imaging system. Background Art

[0002] As the core optical element in a tele-imaging display device, with the gradual expansion of the market for tele-imaging display devices, the demand for curved mirrors has also increased accordingly. In the prior art, the curved substrate of the curved mirror is formed by hot bending glass, and the reflective surface is formed by coating. In the market environment where the demand for tele-imaging display devices was relatively small when they first emerged, the above method of manufacturing curved mirrors could still be tolerated. However, currently, due to the expansion of the market, the demand for curved mirrors has increased, and in order to achieve a more immersive visual effect, the area of the curved mirror has been increased. All of the above factors will increase the cost of forming the reflective surface by coating, making it unable to meet the current demand. Summary of the Utility Model

[0003] The present utility model is precisely proposed based on the above-mentioned needs of the prior art. The technical problem to be solved by the present utility model is to provide a tele-imaging system to reduce production costs.

[0004] To solve the above problems, the technical solutions provided by the present utility model include:

[0005] A tele-imaging system is provided, including: a light source, which serves as the light source of the tele-imaging system; a beam splitter, which is oppositely arranged with respect to the light source, and the light emitted by the light source is incident on the beam splitter, forming a first effective optical path and a first ineffective optical path, and the light is reflected by the beam splitter to form the first effective optical path; a curved mirror, which is oppositely arranged with respect to the beam splitter, the curved mirror includes a base layer and a reflective layer, the base layer is arranged at the bottom position of the curved mirror, and the reflective layer is formed by a metal or a composite layer, the metal is stainless steel, iron, aluminum, an alloy of iron or an alloy of aluminum, and the composite layer includes a resin layer and a reflective film layer, and the resin layer is arranged on the reflective film layer; the light on the first effective optical path is incident on the curved mirror and is reflected and then emitted towards the beam splitter again, forming a second effective optical path and a second ineffective optical path, and the light passes through the beam splitter to form the second effective optical path; the light emitted by the light source is incident on the beam splitter, and after passing through the first effective optical path and the second effective optical path, a first image with a preset focal plane depth is formed at the viewing position, and the preset distance is greater than 1 m.

[0006] The reflective layer formed by the above materials has good oxidation resistance, which can effectively prevent oxidation, thus avoiding the uneven reflectivity and roughness of the reflective surface after oxidation and affecting the imaging effect. The reflective layer formed by the composite layer protects the reflective film layer through the resin layer to maintain the overall stability. In addition, compared with coating, the above reflective layer can greatly save costs, especially for large-caliber sizes. The larger the caliber, the greater the cost savings. Further, since the reflective layer formed by the above materials is prone to deformation or instability, the thickness of the reflective layer should be set to be less than that of the base layer. The base layer provides the ability to resist deformation to prevent deformation, and the reflective layer provides a smooth reflective surface, making the optical element as a whole stable and having good reflective performance.

[0007] Preferably, the base layer is a glass substrate or an aluminum substrate.

[0008] Through the above settings, a glass substrate or an aluminum substrate provides good anti-deformation ability.

[0009] Preferably, the thickness range of the reflective layer is 0.1 mm to 5 mm.

[0010] Preferably, the thickness range of the base layer is 1 mm to 20 mm.

[0011] Preferably, the curved mirror further includes a connection layer, and the connection layer is disposed between the base layer and the reflective layer to connect the base layer and the reflective layer.

[0012] Preferably, the base layer and the reflective layer are attached through the connection layer.

[0013] Preferably, the thicknesses of the base layer and the reflective layer are positively correlated with the caliber of the base layer and the reflective layer.

[0014] Preferably, the aluminum substrate includes a substrate formed of aluminum alloy.

[0015] Preferably, the reflective layer is formed of stainless steel.

[0016] Compared with the prior art, the reflective layer formed of the above materials has good oxidation resistance, can effectively prevent oxidation, and thus avoid the uneven reflectivity and roughness of the reflective surface after oxidation, which affect the imaging effect. The reflective layer formed of the composite layer protects the reflective film layer through the resin layer to maintain the overall stability. In addition, the above reflective layer can greatly save costs compared with coating, especially for large-caliber sizes. The larger the caliber, the greater the cost savings. Further, since the reflective layer formed of the above materials is prone to deformation or instability, the thickness of the reflective layer should be set to be less than the thickness of the base layer. The base layer provides the ability to resist deformation to prevent deformation, and the reflective layer provides a smooth reflective surface, making the optical element as a whole stable and having good reflective performance. At the same time, an aluminum substrate or a glass substrate that can resist deformation is set as a support to provide the ability to maintain the shape and bending degree of the stainless steel mirror, so as to enable normal imaging finally. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present specification or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the embodiments of the present specification. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the optical path structure of a long-distance imaging system in an embodiment of the present invention;

[0019] Figure 2 It is a schematic diagram of the structure of a curved mirror in an embodiment of the present invention.

[0020] Reference numerals:

[0021] 1. Light source; 2. Beam splitter; 3. Curved mirror; 4. Reflective layer; 5. Connection layer; 6. Base layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0023] In the description of the embodiments of the present utility model, it should be noted that unless otherwise clearly defined and limited, the term "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. 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.

[0024] The terms "top", "bottom", "above", "below", and "on" used throughout the description are relative positions with respect to the components of the device, such as the relative positions of the top and bottom substrates inside the device. It can be understood that the device is multifunctional and is independent of its orientation in space.

[0025] For ease of understanding the embodiments of the present application, the following will further explain with specific examples in conjunction with the accompanying drawings. The examples do not constitute a limitation to the embodiments of the present application.

[0026] This embodiment provides a far-image imaging system, as Figure 1 and Figure 2 shown.

[0027] The far-image imaging system includes a light source 1, a beam splitter 2, and a curved mirror 3.

[0028] The light source 1 serves as the light source of the far-image imaging system. Exemplarily, the light source 1 can be a lamp bead whose display shape can be adjusted by energization, or it can also be a display.

[0029] The beam splitter 2 can make a part of the incident light exit in a reflected form and a part exit in a transmitted form. After being processed by the beam splitter 2, the ratio of the light output in the transmitted form and the light output in the reflected form is determined by the splitting ratio of the beam splitter 2.

[0030] The beam splitter 2 is disposed opposite to the light source 1. The light emitted by the light source 1 is incident on the beam splitter 2 and is output in two paths. Among them, the optical path formed by the light output in the reflected manner is the first effective optical path, and the optical path formed by the light output in the transmitted manner is the first ineffective optical path. The first effective optical path will continue to be transmitted in the far-image imaging system, while the first ineffective optical path will exit from the far-image imaging system and will no longer participate in the subsequent light propagation.

[0031] The curved mirror 3 is disposed opposite to the beam splitter 2. The light in the first effective optical path is reflected by the curved mirror 3 and then emitted towards the beam splitter 2 again. After passing through the beam splitter 2, a second effective optical path and a second ineffective optical path are formed. The second effective optical path is the optical path transmitted through the beam splitter 2, and the second ineffective optical path is the optical path reflected by the beam splitter 2. The light in the second effective optical path is output from the beam splitter 2 and emitted towards the viewing position, forming a first image with a preset focal plane depth greater than 1 m. The light in the second ineffective optical path is output from the beam splitter 2 and emitted outside the far-image imaging system, and does not participate in the formation of the first image.

[0032] Further, the curved mirror 3 includes a base layer 6 and a reflective layer 4. The base layer 6 is disposed at the bottom position of the curved mirror 3, and the reflective layer 4 is disposed on the base layer 6, and the thickness of the base layer 6 is greater than the thickness of the reflective layer 4.

[0033] The surface of the reflective layer 4 forms a reflective surface. The reflective layer 4 is in a concave shape. Exemplarily, the middle position of the reflective layer 4 has a downward concave shape, so as to be able to reflect light intensively.

[0034] The reflective layer is formed of a metal or a composite layer. The metal is stainless steel, iron, aluminum, an alloy of iron or an alloy of aluminum.

[0035] Exemplarily, stainless steel material has good reflectivity, that is, it can form a good mirror effect and can reflect the incident light along the path of light propagation. For metal materials without antioxidant property or with weak antioxidant property, oxidation reaction will occur when their surfaces contact with air to form uneven mottles, which will affect the reflectivity and imaging effect. The good antioxidant property of stainless steel material makes it more stable and durable, so as to maintain a stable high reflectivity for a long time. Based on the above description, the reflective layer 4 has a lower cost compared with coating while maintaining a good reflection effect.

[0036] Exemplarily, the composite layer includes a resin layer and a reflective film layer. The resin layer is disposed on the reflective film layer to protect the reflective film from abrasion. While maintaining overall stability, the cost is saved.

[0037] Although the reflective layer 4 has the above advantages, due to its property of being prone to deformation, it requires the base layer 6 to provide corresponding support to prevent the reflective layer 4 from deforming and affecting the imaging effect.

[0038] Further, the thickness range of the reflective layer 4 is 0.1 mm to 5 mm.

[0039] The base layer 6 is disposed below the optical element and is used to carry the reflecting surface. The base layer 6 forms a concave surface, that is, the base layer 6 is in a sunken shape and is sunken downward at its middle position. The bending degree of the base layer 6 and the reflecting layer 4 at corresponding positions is the same so that there is no gap between the two.

[0040] The base layer 6 needs to have good anti-deformation ability so that the base layer 6 can continuously maintain the presented sunken shape and form a curved surface. With the maintenance of the base layer 6 not being easily deformed, the reflecting layer 4 maintains its shape without change.

[0041] Exemplarily, the base layer 6 can be formed by hot bending of glass. Or, the base layer 6 is formed of metal, such as an aluminum substrate, which can be an alloy material containing aluminum, so as to have excellent anti-deformation ability. Thus, the stability of the optical element is maintained.

[0042] In addition, in order to maintain the existing state of the reflecting layer 4 and prevent the reflecting layer 4 from deforming, the thickness of the base layer 6 is set to be greater than the thickness of the reflecting layer 4 to meet the requirement of preventing deformation. Further, the thicknesses of the base layer 6 and the reflecting layer 4 are positively correlated with the aperture of the base layer 6 and the stainless steel reflecting mirror.

[0043] Further, the thickness range of the base layer 6 is 1 mm to 20 mm.

[0044] The optical element further includes a connection layer 5. The connection layer 5 is disposed between the base layer 6 and the reflecting layer 4 to connect the two and maintain their stability. Further, the coverage area of the connection layer 5 coincides with the corresponding coverage areas of the base layer 6 and the reflecting layer 4. Exemplarily, the connection layer 5 is an adhesive layer.

[0045] Further, the thicknesses of the base layer 6 and the reflecting layer 4 are positively correlated with the aperture of the base layer 6 and the reflecting layer 4, that is, when the aperture is larger, the thicknesses of the base layer 6 and the reflecting layer 4 need to be increased.

[0046] Through the above far-image imaging system, the light emitted by the internal light source can be reflected by the beam splitter, reflected by the curved mirror, and transmitted by the beam splitter in sequence to form a first image with a preset focal plane depth, so that no matter how close the viewer is to the beam splitter, the distance between the first image and the eyes cannot be changed. Furthermore, it can effectively prevent visual fatigue or myopia caused by the distance between the viewed image and the viewer's eyes being too close.

[0047] The specific embodiments described above further elaborate on the purpose, technical solution, and beneficial effects of the present application. It should be understood that the above description is only the specific embodiments of the present application and is not used to limit the protection scope of the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A far-image imaging system, characterized in that, Comprising: A light source, serving as the light source of the telecentric imaging system; A beam splitter, disposed opposite to the light source, and the light emitted by the light source is incident on the beam splitter to form a first effective optical path and a first ineffective optical path, and the light forms the first effective optical path after being reflected by the beam splitter; A curved mirror, disposed opposite to the beam splitter, the curved mirror includes a base layer and a reflective layer, the base layer is disposed at the bottom position of the curved mirror, and the reflective layer is formed of a metal or a composite layer, the metal is stainless steel, iron, aluminum, an alloy of iron or an alloy of aluminum, and the composite layer includes a resin layer and a reflective film layer, and the resin layer is disposed on the reflective film layer; the light of the first effective optical path is incident on the curved mirror and is reflected and then emitted towards the beam splitter again to form a second effective optical path and a second ineffective optical path, and the light forms the second effective optical path after passing through the beam splitter; The light emitted by the light source is incident on the beam splitter, and after passing through the first effective optical path and the second effective optical path, a first image with a preset focal plane depth is formed at the viewing position, and the preset distance is greater than 1 m.

2. The long-distance imaging system according to claim 1, wherein The base layer is a glass substrate or an aluminum substrate.

3. The far-image imaging system according to claim 1, wherein The thickness range of the reflective layer is 0.1 mm to 5 mm.

4. The far-image imaging system according to claim 1, wherein The thickness range of the base layer is 1 mm to 20 mm.

5. The far-image imaging system according to claim 1, wherein The curved mirror further includes a connecting layer, and the connecting layer is disposed between the base layer and the reflective layer to connect the base layer and the reflective layer.

6. The far-image imaging system according to claim 1, wherein The base layer and the reflective layer are adhesively disposed through the connecting layer.

7. The far-image imaging system according to claim 1, wherein, The thicknesses of the base layer and the reflective layer are positively correlated with the diameters of the base layer and the reflective layer.

8. The far-image imaging system according to claim 2, wherein The aluminum substrate includes a substrate formed of an aluminum alloy.

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