Optical magnification device for electronic devices
By designing an optical magnification device with a folding structure and a reflection system, the problem of insufficient magnification in smartphone accessories has been solved, achieving compatibility with smartphones and high magnification, providing magnification effects comparable to professional telescopes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HUAWEI TECH CO LTD
- Filing Date
- 2020-12-15
- Publication Date
- 2026-05-15
AI Technical Summary
Existing smartphone accessories have insufficient optical magnification, and professional telescopes are large, expensive, and incompatible with smartphones.
An optical magnification device with a folded structure was designed. It employs a reflection system and a support structure, and uses primary and secondary reflection elements to form a folded optical path to achieve high magnification. The focal length is extended by a movable arm, and the device can be used in conjunction with a smartphone.
It provides a small, dynamic, and inexpensive optical magnification component to achieve magnification of over x100, meeting the requirements of professional telescopes, without taking up extra space.
Smart Images
Figure CN116601562B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to an optical magnification device for an electronic device, the device comprising a folded structure for forming a folded optical path. Background Technology
[0002] Smartphone-based zoom or static telescope accessories have been developed for observing the sky, space, and planets. Current technologies typically employ principles based on guiding incident light using several refractive elements, such as plastic or glass lenses.
[0003] Telescopes require a relatively high magnification factor, ideally at least x100, to properly observe objects—such as the Moon, located approximately 380,000 kilometers away. With a magnification factor of x100, the outlines of lunar craters can be seen. However, current technologies used with smartphones typically only achieve a magnification factor of x50. Furthermore, these technologies are complex, expensive, relatively space-consuming, and usually require additional support.
[0004] Professional telescope equipment typically includes reflective optics, rather than refractive optics. However, such optics are currently too large, too static, and too expensive to be used as smartphone accessories. Summary of the Invention
[0005] The object of this invention is to provide an improved optical magnification device. The above and other objects are achieved through the features of the independent claims. Other embodiments will be apparent from the dependent claims, the description, and the drawings.
[0006] According to a first aspect, an optical magnification device for an electronic device is provided, wherein the device includes a folded structure, the folded structure including a reflection system for forming a folded optical path and a support structure for connecting the folded structure to the electronic device, such that the focal plane of the optical magnification device is located within the electronic device. The reflection system includes a primary reflection element and a secondary reflection element, wherein the primary reflection element includes a concave reflective surface and the secondary reflective element includes a planar reflective surface.
[0007] This technical solution allows for the use of sufficiently small, dynamic, and inexpensive optical magnification components for integration with electronic devices such as smartphones. Furthermore, it eliminates the need for additional support components. The device is robust and relatively simple to manufacture, partly due to the shift from refractive to reflective elements. It provides sufficient optical magnification, exceeding x100, equivalent to magnification achieved in professional telescopes today.
[0008] In one possible embodiment of the first aspect, the folded structure further includes a real or virtual aperture through which electromagnetic radiation enters the folded structure, and the reflection system is used to form the folded optical path, which extends from the aperture to the focal plane.
[0009] In another possible embodiment of the first aspect, the secondary reflective element is disposed along the optical path between the aperture and the primary reflective element; or between the primary reflective element and the focal plane, which allows for the most flexible configuration.
[0010] In another possible embodiment of the first aspect, the reflection system further includes a tertiary reflection element disposed along the optical path between the primary reflection element and the focal plane, or between the aperture and the primary reflection element. The tertiary reflection element includes a planar reflective surface, making the optical path increasingly foldable and even enabling more flexible configurations.
[0011] In another possible embodiment of the first aspect, when the optical path extends from the focal plane to the farthest of the first-order reflective element, the second-order reflective element, and the third-order reflective element, the total length of the optical path is ≥100mm, preferably ≥300mm, thereby obtaining a sufficient magnification factor.
[0012] In another possible embodiment of the first aspect, the primary reflective element, the secondary reflective element, and / or the tertiary reflective element comprises a spherical or parabolic reflective surface.
[0013] In another possible embodiment of the first aspect, the primary reflective element, the secondary reflective element, and / or the tertiary reflective element comprises a prism or a mirror.
[0014] In another possible embodiment of the first aspect, the secondary reflective element is used to reflect the incident electromagnetic radiation toward the primary reflective element, the primary reflective element is used to reflect the electromagnetic radiation toward the tertiary reflective element, and the tertiary reflective element is used to reflect the electromagnetic radiation toward the image sensor.
[0015] In another possible embodiment of the first aspect, the secondary reflective element and / or the tertiary reflective element are used to fold the optical path by 90°.
[0016] In another possible embodiment of the first aspect, the primary reflective element is used to fold the optical path by 170° to 190°, preferably 180°.
[0017] In another possible embodiment of the first aspect, the reflection system is fixedly disposed within the folded structure, and the support structure surrounds the folded structure, thereby realizing a reliable and robust optical magnification device.
[0018] In another possible embodiment of the first aspect, the reflective system is at least partially non-fixed within the folding structure, and the support structure includes at least one movable arm for carrying one of the primary reflective element, the secondary reflective element, and the tertiary reflective element, the movable arm being movable between a storage position and an operating position. Dynamic optical magnification devices can be realized, and their focal length can be extended far beyond the limitations imposed by the external dimensions of the optical magnification device and the electronics.
[0019] In another possible embodiment of the first aspect, the optical magnification device operates only in the operating position, such that the components of the optical magnification device are in a protected position when not in use.
[0020] In another possible embodiment of the first aspect, the movable arm includes a first end pivotally connected to a base of the support structure, and a second end carrying one of the primary reflective element, the secondary reflective element, and the tertiary reflective element. The movable arm is configured to pivot toward the main plane of the base and optionally toward an additional movable arm. A simple and reliable technical solution can be achieved to extend the focal length of the optical magnification device.
[0021] In another possible embodiment of the first aspect, the movable arm includes a plurality of interconnected segments that are movable relative to each other, such that the movable arm can extend in at least one direction, facilitating a greater extension of the focal length of the optical magnification device.
[0022] In another possible embodiment of the first aspect, the segments are slidably and / or pivotally interconnected.
[0023] In another possible embodiment of the first aspect, the support structure includes a first movable arm and a second movable arm, the first movable arm carrying the primary reflective element and the second movable arm carrying the secondary reflective element, the primary reflective element and the secondary reflective element being configured such that when the first movable arm and the second movable arm are in the operating position, the reflective surface of the primary reflective element at least partially faces the reflective surface of the primary reflective element.
[0024] In another possible embodiment of the first aspect, the first movable arm and the second movable arm are configured to fold together when the first movable arm and the second movable arm move from the operating position to the storage position.
[0025] In another possible embodiment of the first aspect, the periphery (i.e. external dimensions) of the optical magnifying device remains unchanged regardless of whether the movable arm is in the storage position or the operating position, such that the electronic device maintains its size even when the optical magnifying device is in use.
[0026] In another possible embodiment of the first aspect, when the movable arm is in the operating position, the peripheral dimensions of the optical magnification device are larger than those when it is in the storage position, thereby achieving the maximum optical magnification factor.
[0027] In another possible embodiment of the first aspect, the distance between the primary reflective element and the secondary reflective element is up to 450 mm.
[0028] In another possible embodiment of the first aspect, the optical magnification device provides a magnification of at least x100.
[0029] In another possible embodiment of the first aspect, the device further includes a lens arrangement disposed near one of the secondary and tertiary reflective elements to achieve a distortion-free transition between the optical systems.
[0030] In another possible embodiment of the first aspect, the lens device includes at least one lens, which facilitates the configuration of the lens device according to specific needs.
[0031] According to a second aspect, an electronic device is provided, including a display, a housing, a main image sensor, and an optical magnification device as described above, wherein the optical magnification device is configured to be connected to the housing such that the focal plane of the optical magnification device is coplanar with the main image sensor.
[0032] This allows electronic devices such as smartphones to be used as portable telescopes. The optical magnification device is small, dynamic, and inexpensive enough to be used with smartphones. The device can provide an optical magnification of at least x100, corresponding to the magnification achieved in professional telescopes today.
[0033] In one possible embodiment of the second aspect, the support structure of the optical magnification device includes a protrusion for engaging the circumference of the housing. This allows for an easily connectable and detachable device that does not move during use.
[0034] In another possible embodiment of the second aspect, one of the secondary reflective element, the tertiary reflective element, and the lens assembly of the optical magnification device is positioned near the main image sensor, which can achieve maximum flexibility and adaptability for specific situations or device configurations.
[0035] In another possible embodiment of the second aspect, the distance along the optical path between the main image sensor and the nearest of the secondary reflective element, the tertiary reflective element, and the lens device does not exceed 2 mm, keeping the combined thickness of the optical magnification device and the electronic device as small as possible.
[0036] In another possible embodiment of the second aspect, a portion of the optical path reaching the focal plane is collinear with the optical axis of the main image sensor.
[0037] In another possible embodiment of the second aspect, the optical axis of the lens device is collinear with the optical axis of the main image sensor, thereby achieving a distortion-free transition between optical systems.
[0038] In another possible embodiment of the second aspect, the electronic device includes a secondary image sensor having a wider field of view than the primary image sensor, the optical magnification device is configured such that it does not obstruct the optical axis of the secondary image sensor, and the display is a dual-view display for optionally simultaneously displaying a primary view provided by the primary image sensor and a secondary view provided by the secondary image sensor. This allows any additional image sensor to be used for other functions of the electronic device.
[0039] In another possible embodiment of the second aspect, the sub-view is used to align the optical magnification device in the desired direction.
[0040] In another possible embodiment of the second aspect, the reflective system of the optical magnification device utilizes at least part of the lateral width of the housing to accommodate the optical path. This makes the optical path as long as possible without affecting any external dimensions of the electronic device.
[0041] This aspect and others will be apparent from the embodiments described below. Attached Figure Description
[0042] In the following detailed sections of the invention, aspects, embodiments, and implementations will be explained in more detail with reference to exemplary embodiments shown in the accompanying drawings, wherein:
[0043] Figure 1 These are front and rear perspective views of an optical magnification device provided in one embodiment of the present invention;
[0044] Figure 2 For electronic devices and Figure 1 The front and rear perspective views of the optical magnification device shown;
[0045] Figure 3 A perspective view of an electronic device and an optical magnification apparatus provided according to an embodiment of the present invention;
[0046] Figure 4 A partial cross-sectional view of an optical magnification device provided in one embodiment of the present invention;
[0047] Figure 5 A partial cross-sectional view of an optical magnification device provided in one embodiment of the present invention;
[0048] Figure 6 The image shows a schematic side view of an optical magnification device provided in an embodiment of the present invention, wherein the optical magnification device is in an open operation position, a middle half-folded position, and a folded storage position;
[0049] Figure 7 This is a perspective view of an electronic device and an optical magnifying device provided according to an embodiment of the present invention, wherein the optical magnifying device is in a folded storage position;
[0050] Figure 8 This is a schematic side view of an optical magnification device provided in an embodiment of the present invention, wherein the optical magnification device is in a folded storage position;
[0051] Figure 9 This is a schematic side view of an electronic device and an optical magnifying device provided according to an embodiment of the present invention, wherein the optical magnifying device is in a folded storage position;
[0052] Figure 10 This is a perspective view of an optical magnification device provided according to an embodiment of the present invention, wherein the optical magnification device is in an open operating position;
[0053] Figure 11 The diagram shows a schematic side view of an electronic device and an optical magnifying device according to an embodiment of the present invention, wherein the optical magnifying device is in a folded storage position, a middle half-folded position, and an open operation position;
[0054] Figure 12 This is a perspective view of an electronic device and an optical magnifying device provided according to an embodiment of the present invention, wherein the optical magnifying device is in an open operating position;
[0055] Figure 13 This is a schematic side view of an optical magnification device provided in an embodiment of the present invention, wherein the optical magnification device is in an open operating position;
[0056] Figure 14 A schematic side view of the arm of an optical magnification device provided for one embodiment of the present invention. Detailed Implementation
[0057] Figure 1 An optical magnification device 1 for electronic device 2 is shown, for example... Figure 2 As shown in the diagram. Electronic device 2 can be a tablet or smartphone, or any other portable electronic device.
[0058] The optical magnification device includes a folding structure 3 and a support structure 6. The support structure 6 is used to connect the folding structure 3 to the electronic device 2, such as... Figure 7 , Figure 9 , Figure 10 , Figure 11 and Figure 12 As shown in the diagram, the folding structure 3 is connected to the electronic device 2, such that the focal plane of the optical magnifying device 1 is located within the electronic device 2.
[0059] Supporting structure 6 can be a frame structure, such that the surrounding frame has an open structure, allowing the user to access folded structure 3, for example, in Figure 6 As suggested in the ac. Support structure 6 can be a shell structure with a closed-open structure, which prevents the user from entering, such as... Figures 1 to 4 The folding structure 3 suggested in the text.
[0060] Folded structure 3 includes a reflection system for forming, for example, Figure 4 and Figure 13 The folded optical path O shown is illustrated by dashed lines.
[0061] The folded structure 3 may also include a real or virtual aperture 7 through which electromagnetic radiation enters the folded structure 3. A reflection system is used to form a folded optical path O that extends from the aperture 7 to the focal plane of the optical magnification device 1.
[0062] The reflection system includes at least a primary reflective element 4 and a secondary reflective element 5. The secondary reflective element 5 can be positioned along the optical path O between the aperture 7 and the primary reflective element 4, such as... Figure 4 and Figure 5 As shown in the diagram. The secondary reflective element 5 can also be positioned along the optical path O between the primary reflective element 4 and the focal plane (not shown).
[0063] The reflection system may also include a third-order reflection element 8, which is positioned along the optical path O between the first-order reflection element 4 and the focal plane, such as... Figure 4 and Figure 5As shown, or between aperture 7 and primary reflective element 4 (not shown).
[0064] like Figure 4 and Figure 13 As suggested in the document, the secondary reflector 5 can be used to reflect incident electromagnetic radiation to the primary reflector 4, the primary reflector 4 is used to reflect electromagnetic radiation to the tertiary reflector 8, and the tertiary reflector 8 is used to reflect electromagnetic radiation to the image sensor of the electronic device 2.
[0065] Secondary reflective element 5 and / or tertiary reflective element 8 can be used to fold the optical path O by 90°, such as Figure 4 and Figure 13 As shown in the diagram. The main reflective element 4 can be configured to fold the optical path O in any direction, preferably folding it by 170° to 190°, and even more preferably by folding it by 180°, as shown in the diagram. Figure 13 As shown.
[0066] When the optical path O extends from the focal plane to the furthest of the first-order reflecting element 4, the second-order reflecting element 5, and the third-order reflecting element 8, the total length of the optical path O is ≥100mm, preferably ≥300mm. "Furthest" refers to the reflecting element furthest from the focal plane when traveling along the optical path, from outside the reflection system, and through the reflection system to the focal plane. Due to the folding nature of the optical path, when measuring the shortest linear and direct distance, the first-order reflecting element 4 can be the furthest from the focal plane, such as... Figure 4 and Figure 13 As shown by the double arrows in the diagram. However, when measuring the distance along the folded optical path, the secondary reflective element 5 can be simultaneously positioned at the point furthest from the focal plane.
[0067] The distance between the primary reflective element 4 and the secondary reflective element 5 can be as high as 450mm.
[0068] The magnification provided by the optical magnifying device 1, i.e., the magnification factor, can be at least x20 or at least x100 under certain conditions. However, the magnification factor depends on the length of the optical path from the focal plane to the last reflecting element, i.e., the reflecting element farthest from the focal plane along the optical path. The length of the optical path is also called the focal length.
[0069] The primary reflective element 4 includes a concave reflective surface, and the secondary reflective element 5 includes a planar reflective surface. The tertiary reflective element 8 may include a planar reflective surface. The primary reflective element 4, the secondary reflective element 5, and / or the tertiary reflective element 8 may include spherical or parabolic reflective surfaces. The primary reflective element 4, the secondary reflective element 5, and / or the tertiary reflective element 8 may include a prism (not shown) or a mirror, such as... Figure 4 As shown.
[0070] like Figure 4As shown, the reflection system can be fixedly installed within the folding structure 3, and the support structure 6 can surround the folding structure 3, as shown. Figures 1 to 4 As shown. With this fixed setup and an optical path length / focal length of approximately 100mm to 150mm, the magnification factor can be less than x50, for example, x20 to x40.
[0071] like Figures 5 to 13 In this configuration, the reflection system may be at least partially non-smoothly positioned within the folding structure 3. The support structure 6 may include at least one movable arm 9, 10 for carrying one of the primary reflective element 4, the secondary reflective element 5, and the tertiary reflective element 8. The movable arms 9, 10 are movable between the storage position P1 and the operating position P2. The optical magnification device 1 can operate only in the operating position P2.
[0072] With this non-fixed setup and an optical path length / focal length of approximately 300mm to 450mm, the magnification factor can be greater than x100.
[0073] like Figure 14 As shown, the movable arms 9 and 10 may include a plurality of interconnected segments 11, which are movable relative to each other, such that the movable arms 9 and 10 may extend in at least one direction. The segments 11 may be slidably and / or pivotally interconnected.
[0074] The movable arms 9 and 10 may include first ends 9a and 10a pivotally connected to the base 6a of the support structure 6, and second ends 9b and 10b carrying one of the primary reflective element 4, the secondary reflective element 5, and the tertiary reflective element 8. The movable arms 9 and 10 are for pivoting toward the main plane of the base 6a and optionally toward additional movable arms 9 and 10.
[0075] The support structure 6 may include a first movable arm 9 and a second movable arm 10. The first movable arm 9 carries the primary reflective element 4, and the second movable arm 10 carries the secondary reflective element 5, such as... Figure 10 and Figure 12 As shown in the diagram, the primary reflective element 4 and the secondary reflective element 5 are configured such that when the first movable arm 9 and the second movable arm 10 are in the operating position P2, the reflective surface of the primary reflective element 4 at least partially faces the reflective surface of the secondary reflective element 5. The tertiary reflective element 8 may be stationary relative to the movable primary reflective element 4 and the secondary reflective element 5. The tertiary reflective element 8 may also be movable.
[0076] The first movable arm 9 and the second movable arm 10 can be used to fold together when the first movable arm 9 and the second movable arm 10 move from the operating position P2 to the storage position P1, such as... Figure 7 , Figure 8 and Figure 9 As shown.
[0077] like Figures 4 to 6 As shown, the peripheral dimensions of the optical magnifying device 1, namely its width and height, remain unchanged regardless of whether the movable arms 9 and 10 are in the storage position P1 or the operating position P2. When the movable arms 9 and 10 are in the operating position P2, the peripheral dimensions of the optical magnifying device 1 can also be larger than when it is in the storage position P1, such as... Figures 10 to 13 As shown in the image, the increased width is illustrated.
[0078] The optical magnification device 1 may also include a lens assembly 12, which is disposed in... Figure 4 and Figure 12 The lens assembly 12 is located near one of the secondary reflective element 5 (not shown) and the tertiary reflective element 8, i.e., directly adjacent to or very close to one of the secondary reflective element 5 (not shown) and the tertiary reflective element 8. The lens assembly 12 may include at least one lens. The reflective system of the optical magnification device 1 preferably does not include any lenses or other refractive-based optical devices; that is, no lens is placed between the primary reflective element, the secondary reflective element 5, and / or the tertiary reflective element 8. Any lens assembly 12 is located outside the reflective system.
[0079] The lens assembly 12 may be fixed to the support structure 6 or detachable, so that the lens assembly 12 can be removed when not needed, and / or the optical magnification device 1 may include several interchangeable lens assemblies 12. Furthermore, the lens assembly 12 may be fixed or movable, for example, along its optical axis.
[0080] The present invention also relates to an electronic device 2, including a display 13, a housing 14, a main image sensor 15, and an optical magnification device 1, such as... Figure 2 and Figure 3 As shown in the diagram. The optical magnifying device 1 is connected to the housing 14 such that the focal plane of the optical magnifying device 1 is coplanar with the main image sensor 15. The reflection system of the optical magnifying device 1 can at least partially utilize the lateral width of the housing 14 to accommodate the optical path O, as shown in the diagram. Figure 4 and Figure 13 As shown in the image.
[0081] like Figures 4 to 6 As shown, the support structure 6 of the optical magnification device 1 may include a protruding portion for engaging the circumference of the housing 14.
[0082] In the optical magnification device 1, one of the secondary reflective element 5, the tertiary reflective element 8, and the lens assembly 12 is preferably located near the main image sensor 15, such as... Figure 4 As shown. The distance along the optical path O between the main image sensor 15 and the nearest one of the secondary reflective element 5, the tertiary reflective element 8, and the lens assembly 12 is preferably no more than 2 mm.
[0083] The portion of the optical path O reaching the focal plane can be collinear with the optical axis of the main image sensor 15. The optical axis of the lens assembly 12 can be collinear with the optical axis of the main image sensor 15.
[0084] Electronic device 2 may also include a secondary image sensor 16, such as Figure 2 and Figure 5 As shown in the diagram. The secondary image sensor 16 can have a wider field of view than the primary image sensor 15, and the optical magnification device 1 can be configured not to obstruct the optical axis of the secondary image sensor 16. Figure 3 As shown, the display 13 can be a dual-view display, configured to display the main view provided by the main image sensor 15 either after individual selection or simultaneously. Figure 13 a and the secondary view provided by the secondary image sensor 16 Figure 13 b. Secondary view Figure 13 b can be used to align the optical magnifying device 1 in the desired direction.
[0085] This document has described various aspects and implementations in conjunction with different embodiments. However, those skilled in the art, through practice of the subject matter and study of the accompanying drawings, the invention, and the appended claims, will be able to understand and obtain other variations of the disclosed embodiments. In the claims, the word "comprising" does not exclude other elements or steps, and "a" does not exclude multiple elements or steps. The mere fact that certain measures are described in mutually different dependent claims does not mean that a combination of these measures cannot be used in advantageous implementations.
[0086] Reference numerals used in the claims should not be construed as limiting the scope. Unless otherwise stated, the drawings (e.g., cross shading, component arrangements, scale, degrees, etc.) should be read in conjunction with the specification and should be considered part of the entire written description of the invention. Since the particular drawings are intended for the reader, the terms “horizontal,” “vertical,” “left,” “right,” “up,” and “down,” as well as their adjective and adverbial derivatives (e.g., “horizontal,” “right,” “up,” etc.), used in the specification, refer only to the orientation of the illustrated structure. Similarly, the terms “inward” and “outward” generally refer to the orientation of a surface relative to its axis of extension or rotation, as appropriate.
Claims
1. An optical magnification device (1) for an electronic device (2), characterized in that, The device includes: - Folded structure (3), including a reflection system, wherein the reflection system is used to form a folded optical path (O), the reflection system includes a primary reflection element (4), a secondary reflection element (5) and a tertiary reflection element (8), the primary reflection element (4) includes a concave reflective surface, and the secondary reflection element (5) includes a planar reflective surface; - Support structure (6) for connecting the folding structure (3) to the electronic device (2) such that the focal plane of the optical magnification device (1) is located within the electronic device (2); Wherein, when the optical path extends from the focal plane to the farthest of the first-level reflective element (4), the second-level reflective element (5), and the third-level reflective element (8), the total length of the optical path is ≥300 mm; The reflection system is at least partially non-fixed within the folded structure (3). The support structure (6) includes at least one movable arm (9, 10) for supporting one of the primary reflective element (4), the secondary reflective element (5), and the tertiary reflective element (8). The movable arms (9, 10) can move between the storage position (P1) and the operation position (P2); The movable arm (9, 10) includes a first end (9a, 10a) of a base (6a) pivotally connected to the support structure (6) and a second end (9b, 10b) carrying one of the primary reflective element (4), the secondary reflective element (5) and the tertiary reflective element (8). The movable arms (9, 10) are used to pivot toward the main plane of the base (6a) and optionally toward additional movable arms (9, 10); The movable arms (9, 10) include a plurality of interconnected segments (11) that are movable relative to each other, such that the movable arms (9, 10) can extend in at least one direction.
2. The device (1) according to claim 1, characterized in that, The folded structure (3) also includes a real or virtual aperture (7) through which electromagnetic radiation enters the folded structure (3), and the reflection system is used to form the folded optical path (O) extending from the aperture (7) to the focal plane.
3. The device (1) according to claim 2, characterized in that, The secondary reflective element (5) is disposed along the optical path (O) between the aperture (7) and the primary reflective element (4); or Between the primary reflective element (4) and the focal plane.
4. The device (1) according to any one of the preceding claims, characterized in that, The third-level reflective element (8) is disposed along the optical path (O) between the first-level reflective element (4) and the focal plane; or Between the aperture (7) and the primary reflective element (4); The three-level reflective element (8) includes planar reflection.
5. The device (1) according to any one of claims 1 to 3, characterized in that, The reflection system is fixedly disposed within the folding structure (3), and the support structure (6) surrounds the folding structure (3).
6. The device (1) according to claim 5, characterized in that, The segments (11) are slidably and / or pivotally interconnected.
7. The device (1) according to claim 1, characterized in that, The support structure (6) includes a first movable arm (9) and a second movable arm (10), the first movable arm (9) carrying the primary reflective element (4) and the second movable arm (10) carrying the secondary reflective element (5), the primary reflective element (4) and the secondary reflective element (5) being configured such that when the first movable arm (9) and the second movable arm (10) are in the operating position (P2), the reflective surface of the primary reflective element (4) at least partially faces the reflective surface of the primary reflective element (4).
8. The device (1) according to claim 7, characterized in that, The first movable arm (9) and the second movable arm (10) are configured to fold together when the first movable arm (9) and the second movable arm (10) move from the operating position (P2) to the storage position (P1).
9. The device (1) according to any one of claims 1 to 3, characterized in that, It also includes a lens device (12), wherein the lens device is disposed near one of the secondary reflective element (5) and the tertiary reflective element (8).
10. An electronic device (2), characterized in that, The device includes a display (13), a housing (14), a main image sensor (15), and an optical magnification device (1) according to any one of claims 1 to 9, wherein the optical magnification device (1) is connected to the housing (14) such that the focal plane of the optical magnification device (1) is coplanar with the main image sensor (15).
11. The electronic device (2) according to claim 10, characterized in that, One of the secondary reflective element (5), the tertiary reflective element (8), and the lens device (12) of the optical magnification device (1) is disposed near the main image sensor (15).
12. The electronic device (2) according to claim 10 or 11, characterized in that, The portion of the optical path (O) reaching the focal plane is collinear with the optical axis of the main image sensor (15).
13. The electronic device (2) according to claim 10 or 11, characterized in that, The device includes a secondary image sensor (16) having a wider field of view than the primary image sensor (15), the optical magnification device (1) is configured not to obstruct the optical axis of the secondary image sensor (16), and the display (13) is a dual-view display for optionally displaying a primary view (13a) provided by the primary image sensor (15) and a secondary view (13b) provided by the secondary image sensor (16) simultaneously.