Far image imaging device

Abstract

The utility model provides a far image imaging device, and relates to the field of imaging equipment. The far image imaging device comprises a moving module, an image assembly and a reflection assembly, the image assembly is fixed to the moving module, and the reflection assembly is arranged on a light path of light emitted by the image assembly. The moving module can drive the image assembly to move towards the reflection assembly or away from the reflection assembly. In the far image imaging device, the image assembly is fixed on the mobile module, and the reflection assembly is arranged on the light path of the light emitted by the image assembly, so that the light emitted by the image assembly can be imaged by the reflection assembly and then emitted to the position where human eyes are located. The mobile module can drive the image assembly to move towards the reflection assembly or away from the reflection assembly, and the relative position of the image assembly and the reflection assembly can be adjusted, so that the projection distance can be adjusted, adjustment of ciliary muscles is facilitated, and asthenopia is avoided.

Description

Technical Field

[0001] The present application relates to the field of imaging equipment, and in particular to a telephoto imaging device. Background Art

[0002] At present, the telephoto light screen LCD image can be projected to a distance of more than 3m from the human eye through the optical path. For example, Naidejia can project the image to 5m, and Qiermu can project the image to 8m. By projecting the image to a distance of more than 3m, long-term close-range eye use can be avoided, thereby playing a role in preventing myopia and protecting the eyes.

[0003] However, the image source of the existing telephoto screen is fixed, and the projection distance is also fixed, which is not conducive to the adjustment of the ciliary muscle and will also cause certain visual fatigue. Utility Model Content

[0004] In view of this, the present application provides a telephoto imaging device to solve the problem that the image source of the existing telephoto light screen is fixed, the projection distance is also fixed, which is not conducive to the adjustment of the ciliary muscles and will also cause certain visual fatigue.

[0005] The present application provides a telephoto imaging device, which includes a mobile module, an image component and a reflection component. The image component is fixed on the mobile module, and the reflection component is arranged on the optical path of the light emitted by the image component. The mobile module can drive the image component to move toward the reflection component or away from the reflection component.

[0006] Preferably, the image assembly comprises an image unit and a lens unit, the image unit is arranged on the mobile module, the lens unit is arranged on a side of the image unit facing away from the mobile module, and the light emitted by the image unit can be emitted toward the reflective assembly through the lens unit.

[0007] Preferably, the moving module can push the image unit to move along a normal direction of the image unit.

[0008] Preferably, the reflection component comprises a first reflection part and a second reflection part, the first reflection part and the second reflection part are arranged at an interval, and at least part of the light emitted by the image component can be emitted to the second reflection part through the first reflection part.

[0009] Preferably, an optical path distance from the image unit through the first reflecting portion to the second reflecting portion is within one focal length of the second reflecting portion.

[0010] Preferably, the first reflecting part is a semi-reflective and semi-transparent plane mirror, part of the light irradiated to the semi-reflective and semi-transparent plane mirror can be reflected to the second reflecting part, and another part of the light irradiated to the semi-reflective and semi-transparent plane mirror can pass through the semi-reflective and semi-transparent plane mirror.

[0011] Preferably, among the light rays incident on the semi-reflective and semi-transparent plane mirror, the ratio of the light rays reflected by the semi-reflective and semi-transparent plane mirror to the light rays passing through the semi-reflective and semi-transparent plane mirror is 3 / 7-7 / 3.

[0012] Preferably, the moving module comprises a pushing component and a fixing member, the image component is fixed on the fixing member, and the pushing component is connected to the fixing member to push the fixing member to move.

[0013] Preferably, the pushing assembly comprises a scissor-type mechanism and a pushing member, the fixed member is connected to the scissor-type mechanism, and the pushing member is connected to the scissor-type mechanism to push the scissor-type mechanism to rise and fall.

[0014] Preferably, the image unit, the lens unit, the first reflecting part and the second reflecting part constitute a coaxial imaging system.

[0015] In the telephoto imaging device of the present application, the image component is fixed on the mobile module, and the reflective component is arranged on the optical path of the light emitted by the image component, so that the light emitted by the image component can be imaged by the reflective component and then emitted to the location of the human eye. The mobile module can drive the image component to move toward the reflective component or away from the reflective component, that is, the relative position of the image component and the reflective component can be adjusted, which enables the projection distance to be adjusted, is conducive to the adjustment of the ciliary muscle, and avoids visual fatigue. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A partial structural schematic diagram showing a telescopic imaging device according to an embodiment of the utility model;

[0018] Figure 2 The optical path diagram of the telephoto imaging device is shown when the projection distance is 10m;

[0019] Figure 3 The optical path diagram of the telephoto imaging device when the projection distance is 1.5m is shown;

[0020] Figure 4 A schematic diagram showing the structure of the mobile module;

[0021] Figure 5 A schematic diagram of the three-dimensional structure of a telescopic imaging device according to an embodiment of the utility model is shown.

[0022] Icons: 1-image component; 11-image unit; 12-lens unit; 2-reflection component; 21-first reflection part; 22-second reflection part; 3-pushing component; 31-scissors mechanism; 311-first scissors arm; 312-second scissors arm; 32-pushing member; 33-slider; 34-mounting plate; 35-connecting block; 4-fixing member; 41-main body; 42-extension part; 43-mounting shell; 5-eye box. DETAILED DESCRIPTION

[0023] The following specific embodiments are provided to help the reader obtain a comprehensive understanding of the methods, devices and / or systems described herein. However, after understanding the disclosure of the present application, various changes, modifications and equivalents of the methods, devices and / or systems described herein will be apparent. For example, the order of operations described herein is merely an example, and is not limited to the order set forth herein, but in addition to the operations that must occur in a particular order, changes that will be apparent after understanding the disclosure of the present application may be made. In addition, in order to improve clarity and brevity, descriptions of features known in the art may be omitted.

[0024] The features described herein may be implemented in different forms and should not be interpreted as being limited to the examples described herein. Rather, the examples described herein have been provided only to illustrate some of the many possible ways of implementing the methods, devices and / or systems described herein that will be apparent after understanding the disclosure of the present application.

[0025] Throughout the specification, when an element (such as a layer, a region, or a substrate) is described as being “on”, “connected to”, “bound to”, “over”, or “covering” another element, it may be directly “on”, “connected to”, “bound to”, “over”, or “covering” another element, or one or more other elements may be present between them. In contrast, when an element is described as being “directly on”, “directly connected to”, “directly bound to”, “directly over”, or “directly covering” another element, there may be no other elements present between them.

[0026] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more items.

[0027] Although terms such as "first," "second," and "third" may be used herein to describe various members, components, regions, layers, or portions, these members, components, regions, layers, or portions are not limited by these terms. Rather, these terms are only used to distinguish one member, component, region, layer, or portion from another member, component, region, layer, or portion. Therefore, without departing from the teachings of the examples described herein, the first member, component, region, layer, or portion referred to may also be referred to as the second member, component, region, layer, or portion.

[0028] For ease of description, spatial relational terms such as "above", "upper", "below", and "lower" may be used herein to describe the relationship of one element to another element as shown in the accompanying drawings. Such spatial relational terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, an element described as being "above" or "upper" relative to another element will subsequently be located "below" or "lower" relative to the other element. Therefore, the term "above" includes both "above" and "below" orientations depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relational terms used herein will be interpreted accordingly.

[0029] The terms used herein are only used to describe various examples and are not used to limit the present disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms "include", "comprise" and "have" list the stated features, quantities, operations, components, elements and / or their combinations that exist, but do not exclude the existence or addition of one or more other features, quantities, operations, components, elements and / or their combinations.

[0030] Variations in the shapes shown in the drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings but include variations in shapes that occur during manufacturing.

[0031] The features of the examples described herein may be combined in various ways that will be apparent after understanding the disclosure of the present application. In addition, although the examples described herein have various configurations, other configurations are possible as will be apparent after understanding the disclosure of the present application.

[0032] The present application provides a telescopic imaging device, such as Figures 1 to 5As shown, the telephoto imaging device includes a mobile module, an image component 1 and a reflective component 2, the image component 1 is fixed on the mobile module, the reflective component 2 is arranged on the optical path of the light emitted by the image component 1, and the mobile module can drive the image component 1 to move toward the reflective component 2 or away from the reflective component 2. In the telephoto imaging device of the present application, the image component 1 is fixed on the mobile module, and the reflective component 2 is arranged on the optical path of the light emitted by the image component 1, so that the light emitted by the image component 1 can be imaged by the reflective component 2 and emitted to the location of the human eye. The mobile module can drive the image component 1 to move toward the reflective component 2 or away from the reflective component 2, that is, the relative position of the image component 1 and the reflective component 2 can be adjusted, which enables the projection distance to be adjusted, is beneficial to the adjustment of the ciliary muscle, and avoids visual fatigue.

[0033] In the embodiments of the present application, Figure 1 As shown, the image component 1 includes an image unit 11 and a lens unit 12. The image unit 11 is arranged on the movable module, and the lens unit 12 is arranged on the side of the image unit 11 facing away from the movable module. The light emitted by the image unit 11 can be emitted to the reflective component 2 through the lens unit 12. By setting the lens unit 12, the imaging distortion can be reduced.

[0034] Optionally, the image unit 11 may be an image source module such as LCD, LED, OLED, LCOS, etc. The image unit 11 may also be a DLP or laser MEMS module. Preferably, the image unit 11 is an LCD screen.

[0035] Optionally, the lens unit 12 may be an aspherical lens, a spherical lens or a Fresnel lens.

[0036] Furthermore, the moving module can push the image unit 11 to move along the normal direction of the image unit 11 , and the projection distance can be adjusted by adjusting the position of the image unit 11 in its normal direction.

[0037] In the embodiments of the present application, Figure 1 , Figure 2 and Figure 3 As shown, the reflective component 2 includes a first reflective portion 21 and a second reflective portion 22, the first reflective portion 21 and the second reflective portion 22 are arranged at intervals, the first reflective portion 21 faces the image component 1, and at least part of the light emitted by the image component 1 can be emitted to the second reflective portion 22 through the first reflective portion 21, and after forming a virtual image at the second reflective portion 22, it is emitted to the eye box 5 through the first reflective portion 21, and the location of the eye box 5 is where the human eye is located, so that the human eye can observe the virtual image. In this way, the long-distance eye use under close-distance conditions is realized through the first reflective portion 21 and the second reflective portion 22, which is conducive to avoiding eye muscle tension caused by close-distance eye use, thereby achieving the purpose of preventing myopia.

[0038] Furthermore, the optical path distance from the image unit 11 to the second reflecting part 22 through the first reflecting part 21 is within one focal length of the second reflecting part 22. At this time, an enlarged virtual image is formed at a distance of 10m from the human eye, ensuring long-distance eye use under close-range conditions.

[0039] Optionally, the first reflecting part 21 is a semi-reflecting and semi-transparent plane mirror, and part of the light directed to the semi-reflecting and semi-transparent plane mirror can be reflected to the second reflecting part 22 to form a virtual image, and another part of the light directed to the semi-reflecting and semi-transparent plane mirror can pass through the semi-reflecting and semi-transparent plane mirror to the eye box 5, thereby ensuring the clarity of the imaging.

[0040] Furthermore, among the light rays incident on the semi-reflective and semi-transparent plane mirror, the ratio of the light rays reflected by the semi-reflective and semi-transparent plane mirror to the light rays passing through the semi-reflective and semi-transparent plane mirror is 3 / 7-7 / 3.

[0041] Preferably, the ratio of the light reflected by the semi-reflective and semi-transparent plane mirror to the light passing through the semi-reflective and semi-transparent plane mirror is 7 / 3, that is, the ratio of the amount of reflected light to the amount of transmitted light is 7:3.

[0042] In an embodiment of the present application, the image unit 11, the lens unit 12, the first reflecting part 21 and the second reflecting part 22 constitute a coaxial imaging system. Compared with the off-axis imaging system, the coaxial imaging system has the advantages of a large field of view, high image quality and small distortion, so that the telephoto imaging device of the present application has a better imaging effect.

[0043] In the embodiments of the present application, Figure 4 and Figure 5 As shown, the mobile module includes a pushing component 3 and a fixing component 4, the image component 1 is fixed on the fixing component 4, the pushing component 3 can push the fixing component 4 to move, so that the fixing component 4 can drive the image component 1 to move, and the pushing component 3 can stay at different positions, so that the image component 1 stays at different station positions. In this way, the viewing time at different projection distances can be controlled by controlling the operation and stop of the pushing component 3.

[0044] Optionally, when the projection distance is less than or equal to 3m, the time that the pushing component 3 stops after moving to the site position can be shorter, so that the image component 1 stays for a shorter time when the projection distance is less than or equal to 3m; when the projection distance is greater than 3m, the time that the pushing component 3 stops after moving to the site position can be longer, so that the image component 1 stays for a longer time when the projection distance is greater than 3m.

[0045] Furthermore, the pushing component 3 includes a scissor-fork mechanism 31 and a pushing member 32. The fixed component 4 is connected to the scissor-fork mechanism 31, and the pushing member 32 is connected to the scissor-fork mechanism 31 to push the scissor-fork mechanism 31 to rise and fall. The image component 1 is moved by pushing the scissor-fork mechanism 31 to rise and fall through the pushing member 32, which can ensure the stability of the movement of the image component 1.

[0046] Optionally, the fixing member 4 includes a main body 41, a mounting shell 43 and two extensions 42. The main body 41 is in the shape of a plate, and the two extensions 42 are also in the shape of a plate. The two extensions 42 are fixed on both sides of the main body 41 respectively. The mounting shell 43 is fixed on the main body 41. The mounting shell 43 is provided with a mounting groove. The image unit 11 is fixed in the mounting groove. The lens unit 12 is bonded to the end surface of the mounting shell 43 facing away from the main body 41. The pushing assembly 3 also includes a mounting plate 34. The scissor mechanism 31 includes a first scissor arm 311 and a second scissor arm 312. The middle part of the first scissor arm 311 is hinged to the middle part of the second scissor arm 312. One end of the first scissor arm 311 is hinged to the mounting plate 34, and the other end of the first scissor arm 311 is partially arranged in the sliding groove of the extension 42. One end of the second scissor arm 312 is hinged to the extension 42, and the other end of the second scissor arm 312 is hinged to the connecting block 35. The connecting block 35 is connected to the slider 33, and the slider 33 is arranged on the output shaft of the pusher 32. When the output shaft rotates, the slider 33 can move along the output shaft of the pusher 32, thereby driving the connecting block 35 to move, thereby realizing the lifting and lowering of the scissor mechanism 31. In this way, the slider 33 can be driven to move by the pusher 32, thereby driving the scissor mechanism 31 to lift and lower, thereby realizing the movement of the image assembly 1.

[0047] Optionally, the pusher 32 may be a driving motor, and the number of the scissor mechanism 31 may be two, and the two scissor mechanisms 31 may be respectively connected to the two extensions 42. In this way, the two scissor mechanisms 31 may respectively support the two sides of the fixed member 4 to ensure the stability of the movement of the fixed member 4.

[0048] It should be noted that the form of the pushing component 3 is not limited to this, and the pushing component 3 can adopt any structure that can push the fixed component 4 to move. For example, the pushing component 3 can be a cylinder, an electric telescopic rod, etc.

[0049] The telephoto imaging device of the present application can realize the movement of the projection distance from 10m to 1.5m. The adjustment force of the ciliary muscle of the human eye is 1 / L, where L is the viewing distance of the human eye, and the viewing distance of the human eye is equal to the projection distance, that is, the viewing distance of the human eye can be adjusted from 10m to 1.5m. When the viewing distance of the human eye is 1.5m, the adjustment force of the ciliary muscle is 1 / 1.5=0.67D, and when the viewing distance of the human eye is 10m, the adjustment force of the ciliary muscle is 1 / 10=0.1D. The projection distance of the virtual image is from 1.5m to 10m, and the adjustment force of the ciliary muscle can be adjusted from 0.1D to 0.67D, realizing the adjustment of the ciliary muscle. Through the overall movement of the image component 1, the graphic component can be stationary at 4 different station positions, corresponding to the formation of 4 different projection distances of the virtual image. At this time, the adjustment force of the ciliary muscle is shown in the following table:

[0050]

[0051] Corresponding to the above-mentioned four sites, the telephoto imaging device of the present application can adopt the following three different training modes.

[0052] 1. Manual mode

[0053] In this mode, starting from station 1, the image component 1 moves from the previous station to the next station in sequence. Between any two stations, the image component 1 moves at a constant speed, and the time for moving between any two adjacent stations is 2s. After moving to the terminal station 4, the image component 1 moves in the opposite direction, and the cycle continues.

[0054] 2. Automatic mode

[0055] The image component 1 automatically runs in a cycle, starting from station 1, running from one station to the next station in 2 seconds, and staying at each station for 5 minutes. After moving to station 4, the image component 1 moves in the reverse direction, and runs in this cycle.

[0056] 3. Reciprocating mode

[0057] Image component 1 moves from starting point 1 to end point 4 in 6 seconds, moves at a constant speed, stays at the end point for 3 seconds, moves to the starting point in 6 seconds, stays at the starting point for 3 seconds, and enters the next cycle. In this way, the cycle runs.

[0058] In this way, by controlling the viewing time at different projection distances, the ciliary muscle can be adjusted, and vision training can be performed while learning.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A telescopic imaging device, characterized in that: The telephoto imaging device includes a moving module, an image component and a reflection component. The image component is fixed on the moving module, and the reflection component is arranged on the optical path of the light emitted by the image component. The moving module can drive the image component to move toward the reflection component or away from the reflection component.

2. The telescopic imaging device according to claim 1, characterized in that: The image assembly comprises an image unit and a lens unit. The image unit is arranged on the mobile module. The lens unit is arranged on a side of the image unit facing away from the mobile module. The light emitted by the image unit can be emitted toward the reflective assembly through the lens unit.

3. The telescopic imaging device according to claim 2, characterized in that: The moving module can push the image unit to move along the normal direction of the image unit.

4. The telescopic imaging device according to claim 2 or 3, characterized in that: The reflection component includes a first reflection part and a second reflection part, the first reflection part and the second reflection part are arranged at an interval, and at least part of the light emitted by the image component can be emitted to the second reflection part through the first reflection part.

5. The telescopic imaging device according to claim 4, characterized in that: An optical path distance of the image unit from the first reflecting portion to the second reflecting portion is within one focal length of the second reflecting portion.

6. The telescopic imaging device according to claim 5, characterized in that: The first reflecting part is a semi-reflective and semi-transparent plane mirror, part of the light directed to the semi-reflective and semi-transparent plane mirror can be reflected to the second reflecting part, and another part of the light directed to the semi-reflective and semi-transparent plane mirror can pass through the semi-reflective and semi-transparent plane mirror.

7. The telescopic imaging device according to claim 6, characterized in that: Among the light rays incident on the semi-reflective and semi-transparent plane mirror, the ratio of the light rays reflected by the semi-reflective and semi-transparent plane mirror to the light rays passing through the semi-reflective and semi-transparent plane mirror is 3 / 7-7 / 3.

8. The telephoto imaging device according to claim 1, characterized in that: The moving module comprises a pushing component and a fixing member, the image component is fixed on the fixing member, and the pushing component is connected to the fixing member to push the fixing member to move.

9. The telescopic imaging device according to claim 8, characterized in that: The pushing assembly comprises a scissor-fork mechanism and a pushing member, the fixing member is connected to the scissor-fork mechanism, and the pushing member is connected to the scissor-fork mechanism to push the scissor-fork mechanism to rise and fall.

10. The telescopic imaging device according to claim 4, characterized in that: The image unit, the lens unit, the first reflecting portion, and the second reflecting portion constitute a coaxial imaging system.

Images