Brightness compensation frame with double-LED light structure and remote image read-write device

Abstract

The utility model provides a brightness compensation frame with a double-LED light structure and remote image read-write equipment, and relates to the field of remote image read-write, and the brightness compensation frame comprises a support member and an LED light structure body. The brightness compensation frame can be unfolded in space to a target state for use; the LED light structural body is assembled at the end part of the support part and comprises a first light part and a second light part, and on a two-dimensional target surface orthogonal to the support part, light rays respectively projected by the first light part and the second light part are at least partially overlapped to form a brightness compensation part so as to cover an object to be imaged. The brightness compensation part can cover an object to be imaged, the brightness compensation part is formed by overlapping two groups of light rays, and the light rays in the range of the brightness compensation part are uniform and have no shadow, so that the quality of imaging amplified by reflection and diffuse reflection of the light rays is improved, and the illumination intensity of a visible body watched by eyes is consistent.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of far image reading and writing, and particularly relates to a brightness compensation frame with a double-LED light structure and a far image reading and writing device. BACKGROUND

[0002] The far image reading and writing device is divided into active and passive types, and the far image reading and writing device can change a near distance image into a far distance virtual image based on optical principles and free-form mirror technology, and can realize magnified imaging without changing a physical distance. In the passive far image reading and writing device, an object to be magnified and imaged needs to be placed on the lower side of a frame, and imaging is performed through reflection and diffuse reflection of light. In order to ensure imaging effects, the surface of the object needs to have sufficient brightness and uniform brightness. Therefore, in order to ensure the quality of magnified imaging, an auxiliary light structure needs to be arranged to compensate for brightness.

[0003] At present, the light source of the traditional LED light structure has a small emission angle and a small irradiation angle. Limited by the irradiation angle, the surface of the object in the visual range is not uniformly illuminated, there is a difference in visual lines, there is a clear shadow in the light intersection area, the light intensity of the visual volume observed by the eyes is inconsistent, and the vision of the observer is damaged. Therefore, it is urgent to arrange a brightness compensation frame suitable for the far image reading and writing device to ensure the quality of magnified imaging and meet the corresponding viewing requirements. CONTENT OF THE INVENTION

[0004] In view of the deficiencies of the prior art, the present application provides a brightness compensation frame with a double-LED light structure and a far image reading and writing device, and solves the problem that the light intensity of the visual volume is inconsistent and the imaging effect is not ideal due to the non-uniform illumination of the surface of the object in the far image reading and writing device.

[0005] To achieve the above object, the present application is implemented by the following technical solutions:

[0006] In a first aspect, the present application provides a brightness compensation frame with a double-LED light structure, which includes a support member and an LED light structure body. The brightness compensation frame is connected to a predetermined support through the support member and can be unfolded to a target state in space for use. The LED light structure body is assembled at the end of the support member and includes a first light member and a second light member distributed at intervals. On a two-dimensional target surface orthogonal to the support member, the light rays projected by the first light member and the second light member at least partially overlap to form a brightness compensation part to cover the object to be imaged.

[0007] Specifically, the support member comprises a first frame body and a second frame body connected by a hinge, the first frame body and the second frame body are arranged at an angle of 45 degrees in the target state, and each has a first free end and a second free end extending outward to connect a first light member and a second light member respectively; the first free end is a plane parallel to the two-dimensional target surface, the extension plane of the second free end is inclined to the two-dimensional target surface at a first angle, and the light emitting surfaces of the first light member and the second light member are parallel to the first free end and the second free end respectively.

[0008] According to the first aspect of the embodiment of the present application, the first free end is arranged at an angle of 45 degrees with the extension direction of the first frame body, and the light rays projected by the wick of the first light member have a first boundary surface and a second boundary surface intersecting at a second angle.

[0009] According to the first aspect of the embodiment of the present application, the light rays projected by the wick of the second light member have a third boundary surface and a fourth boundary surface intersecting at a third angle, and the second boundary surface and the third boundary surface enclose a brightness compensation part on the two-dimensional target surface.

[0010] According to the first aspect of the embodiment of the present application, the first light member and the second light member are respectively built into the interior of the first frame body and the second frame body, the light emitting surface of the first light member is flush with the first free end, the light emitting surface of the second light member is flush with the second free end, and the first angle is 15 degrees.

[0011] According to the first aspect of the embodiment of the present application, the second angle is positively related to the size of the light emitting surface of the first light member, the third angle is positively related to the size of the light emitting surface of the second light member, and the range of the brightness compensation part is greater than 297mm*420mm.

[0012] According to the first aspect of the embodiment of the present application, the first light member and the second light member are both LED light strips, and the extension planes of the cross sections of any positions along the length direction of the two light strips are perpendicular to each other on the two-dimensional target surface, the second angle is 90 degrees, and the third angle is 99 degrees.

[0013] According to the first aspect of the embodiment of the present application, the support member further comprises a third frame body, the third frame body, the first frame body and the second frame body are connected by a hinge, and each of the three is configured to be provided with a free curved mirror, a plane mirror and an imaging panel.

[0014] According to the first aspect of the embodiment of the present application, the brightness compensation frame further comprises a hydraulic member, the hydraulic member comprises a first hydraulic rod and a second hydraulic rod, the two ends of the first hydraulic rod are respectively hinged to the third frame body and the first frame body, and the two ends of the second hydraulic rod are respectively hinged to the first frame body and the second frame body.

[0015] According to a first aspect of the embodiment of the present application, the extension control processes of the first hydraulic rod and the second hydraulic rod are independent of each other; when the first hydraulic rod is in the unfolded state, the LED light structure projects a brightness compensation part on the two-dimensional target surface to compensate the brightness of the object placed on the two-dimensional target surface.

[0016] According to a second aspect of the embodiment of the present application, a far-field read-write device is provided, which comprises the brightness compensation frame with the double-LED light structure according to the first aspect.

[0017] The present application provides a brightness compensation frame with a double-LED light structure and a far-field read-write device. Compared with the prior art, the present application has the following beneficial effects:

[0018] When the brightness compensation frame of the present application is used, the support member can be unfolded to a target state, and the first frame body and the second frame body connected by the support member are arranged at a 45° angle in the target state. The first light member and the second light member project light from the respective light emitting surfaces, and the projection angle of the light is predetermined after the positions of the first frame body and the second frame body are fixed. The projection range of the light is limited by the size of the light emitting surface. The light projected by the first light member and the second light member at least partially overlaps and forms a brightness compensation part. The brightness compensation part can cover the object to be imaged. The brightness compensation part is formed by the overlapping of the two groups of light. The light in the range of the brightness compensation part is uniform and has no dark shadow. Thus, the quality of the enlarged image obtained by reflection and diffuse reflection of the light is improved, and the visual light intensity observed by the eye is consistent. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the description of the embodiments or the prior art will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0020] Figure 1 is a structural schematic diagram of the brightness compensation frame with the double-LED light structure provided by the embodiment of the present application;

[0021] Figure 2 is a position and light emitting angle diagram of the first light member and the second light member provided by the embodiment of the present application.

[0022] The reference signs are as follows: first light part 1; second light part 2; first frame 3; first free end 31; second frame 4; second free end 41; third frame 5; free curved mirror 6; plane mirror 7; imaging panel 8; hydraulic part 9; first hydraulic rod 91; second hydraulic rod 92; two-dimensional target surface A; brightness compensation part B; first boundary surface C; second boundary surface D; third boundary surface E; fourth boundary surface F; first included angle a; second included angle b; third included angle c. DETAILED DESCRIPTION

[0023] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application are described clearly and completely. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0024] It should be noted that, in this document, the terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "including a" does not exclude the presence of another identical element in the process, method, article or equipment including the element.

[0025] The embodiments of the present application provide a brightness compensation frame with a double-LED light structure and a far-field read-write device, and solve the problem that the imaging effect is not ideal due to the inconsistent illumination intensity of the visible volume caused by the uneven light on the surface of the object.

[0026] The technical solutions in the embodiments of the present application are as follows to solve the above technical problems:

[0027] The far image reading and writing device is divided into active and passive two kinds, the far image reading and writing device is based on optical principle and free-form surface mirror technology, can change the near distance image into the far distance virtual image, in the case of not changing the physical distance, realizes the amplification imaging. The passive far image reading and writing device does not need external signal source, in the use process of passive far image reading and writing device, the object to be amplified and imaged is placed on the lower side of the frame, and the amplification imaging is carried out through the reflection and diffuse reflection of light. Therefore, in order to ensure the imaging effect, it is necessary to ensure that the surface of the object has sufficient brightness and uniform brightness, therefore, in order to ensure the quality of amplification imaging, it is necessary to set up auxiliary light structure to compensate the brightness.

[0028] At present, the light source of the traditional LED light structure has small emission angle and small irradiation angle, which is limited by the irradiation angle and causes the surface of the object in the visible range to be unevenly illuminated, and there is a strong and weak view, there is obvious shadow in the light intersection area, the light intensity of the visible body observed by the eyes is inconsistent, which can cause damage to the vision of the observer.

[0029] In order to better understand the above technical solutions, the above technical solutions will be described in detail in combination with the drawings of the specification and specific embodiments.

[0030] Firstly, a brightness compensation frame with double LED light structure provided by the embodiment of the present application will be introduced.

[0031] The brightness compensation frame with double LED light structure provided by the embodiment of the present application, please refer to Figure 1 And Figure 2 The brightness compensation frame includes a support member and an LED light structure body; the brightness compensation frame is connected to a predetermined support through the support member, and can be expanded to a target state in space for use; the LED light structure body is assembled at the end of the support member and includes a first light member 1 and a second light member 2 distributed at intervals, and the light rays projected by the first light member 1 and the second light member 2 respectively at least partially overlap to form a brightness compensation part B on a two-dimensional target surface A perpendicular to the support member to cover the object to be imaged.

[0032] Specifically, the support member includes a first frame body 3 and a second frame body 4 connected by a hinge, the first frame body 3 and the second frame body 4 are arranged at a 45° angle in the target state, and each has a first free end 31 and a second free end 41 extending outwardly to connect the first light member 1 and the second light member 2 respectively. The first free end 31 is a plane parallel to the two-dimensional target surface A, and the extension surface of the second free end 41 is inclinedly intersected with the two-dimensional target surface A at a first included angle a, and the light emitting surfaces of the first light member 1 and the second light member 2 are respectively parallel to the first free end 31 and the second free end 41.

[0033] In the embodiments of the present application, it should be noted that the brightness compensation framework of the present application can be unfolded to a target state through the support member when in use, and the first frame body 3 and the second frame body 4 connected by the pivot are arranged at an angle of 45° in the target state to meet the reflection and diffuse reflection requirements of the light of the far image reading and writing device.

[0034] It can be understood that the first light member 1 and the second light member 2 project light from the respective light emitting surfaces, and the light projection angle has a predetermined projection angle after the positions of the first frame body 3 and the second frame body 4 are fixed, and the projection range of the light is limited by the size of the light emitting surface. The light projected by the first light member 1 and the second light member 2 at least partially overlaps and forms a brightness compensation part B, the brightness compensation part B can cover the object to be imaged, the brightness compensation part B is formed by the overlap of the two groups of light, the light in the range of the brightness compensation part B is uniform without shadow, thereby improving the quality of the enlarged image by reflection and diffuse reflection of the light, and the visual body illumination intensity observed by the eye is consistent.

[0035] In some embodiments, please refer to Figure 1 and Figure 2 , the first free end 31 is arranged at an angle of 45° with the extension direction of the first frame body 3, the light projected by the wick of the first light member 1 has a first boundary surface C and a second boundary surface D intersecting at a second angle b; the light projected by the wick of the second light member 2 has a third boundary surface E and a fourth boundary surface F intersecting at a third angle c, and the second boundary surface D and the third boundary surface E enclose the brightness compensation part B on the two-dimensional target surface A.

[0036] In the embodiments of the present application, it can be understood that the brightness compensation part B is formed by the partial overlap of the light projected by the first light member 1 and the second light member 2, therefore, the range of the brightness compensation part B is directly related to the light projected by the first light member 1 and the second light member 2, the brightness compensation part B is related to the second angle b and the third angle c, by arranging the size of the second angle b and the third angle c, the range of the brightness compensation part B can be sufficient to cover the size of the object to be imaged in the far image reading and writing device, thereby meeting the use requirements of the far image reading and writing device.

[0037] In one example, the first light member 1 and the second light member 2 are respectively built into the inside of the first frame body 3 and the second frame body 4, the light emitting surface of the first light member 1 is flush with the first free end 31, the light emitting surface of the second light member 2 is flush with the second free end 41, and the first angle a is 15°. It can be understood that the two light emitting surfaces are flush with the first free end 31 and the second free end 41 respectively, which can ensure that the light projected by the first light member 1 and the second light member 2 will not be blocked by the structure of the first free end 31 and the second free end 41.

[0038] In some embodiments, the second included angle b is positively correlated with the size of the light emitting surface of the first light 1, the third included angle c is positively correlated with the size of the light emitting surface of the second light 2, and the range of the brightness compensation part B is greater than 297mmx420mm.

[0039] In the embodiments of the present application, it can be understood that 297mmx420mm is the A3 size. Since the passive telephoto reading and writing device is mainly used for magnifying the image of a book, the range of the brightness compensation part B is greater than 297mmx420mm, which can uniformly illuminate the A3 size and A4 size of the book after the first light 1 and the second light 2 are turned on, thereby meeting the use requirements.

[0040] In one example, the first light 1 and the second light 2 are both LED light strips, and the extension surfaces of the cross sections of the first light 1 and the second light 2 at any position along the length direction thereof are perpendicular to each other on the two-dimensional target surface A, the second included angle b is 90°, and the third included angle c is 99°.

[0041] In some embodiments, referring to Figure 1 , the support part further comprises a third frame 5, the third frame 5, the first frame 3 and the second frame 4 are connected by hinges, and the three are respectively configured to be provided with a free curved mirror 6, a plane mirror 7 and an imaging panel 8.

[0042] In the embodiments of the present application, it can be understood that the first frame 3, the second frame 4 and the third frame 5 are arranged at an included angle of 45° with each other. After the light transmits through the plane mirror 7, it contacts the concave surface of the free curved mirror 6 and is reflected into an enlarged and zoomed-out image. The light reflected by the free curved mirror 6 contacts the plane mirror 7 again and is reflected to the observation position. The imaging panel 8 is provided for diffuse reflection imaging. According to the optical principle, the present application can change the close-up image into a long-distance image, which is beneficial to prevent myopia compared with close-up reading of paper books.

[0043] In some embodiments, referring to Figure 1 , the brightness compensation framework further comprises a hydraulic part 9, the hydraulic part 9 comprises a first hydraulic rod 91 and a second hydraulic rod 92, both ends of the first hydraulic rod 91 are respectively hinged to the third frame 5 and the first frame 3, and both ends of the second hydraulic rod 92 are respectively hinged to the first frame 3 and the second frame 4. It can be understood that the extension and contraction of the first hydraulic rod 91 and the second hydraulic rod 92 can control the first light 1 and the second light 2 to reach the predetermined position.

[0044] In one example, the extension and contraction control process of the first hydraulic rod 91 and the second hydraulic rod 92 is independent of each other. When the first hydraulic rod 91 is in the unfolded state, the LED light structure body projects the brightness compensation part B on the two-dimensional target surface A to compensate the brightness of the object placed on the two-dimensional target surface A.

[0045] In some embodiments, the application also provides a far-field read-write device comprising the aforementioned brightness compensation frame with a double-LED light structure. By providing the brightness compensation frame, the magnification imaging quality of the far-field read-write device can be improved.

[0046] In summary, compared with the prior art, the application has the following beneficial effects:

[0047] 1. When the brightness compensation frame of the application is in use, it can be unfolded to a target state by the support member, and in the target state, the first frame body 3 and the second frame body 4 connected by pivots are arranged at a 45° angle to meet the reflection and diffuse reflection requirements of the light of the far-field read-write device.

[0048] 2. The first light member 1 and the second light member 2 project light from their respective light-emitting surfaces, and the light projection angle has a predetermined projection angle after the positions of the first frame body 3 and the second frame body 4 are fixed. The brightness compensation part B is formed by the overlapping of two groups of light, and the light within the range of the brightness compensation part B is uniform without shadows, which can improve the quality of magnification imaging by reflection and diffuse reflection of light.

[0049] 3. By providing that the range of the brightness compensation part B is greater than 297mm×420mm, after the first light member 1 and the second light member 2 are turned on, the A3 and A4 format book materials can be uniformly illuminated, meeting the use requirements of the far-field read-write device.

[0050] The above embodiments are only used to illustrate the technical solutions of the application, but not to limit it; although the application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to some technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the application.

Claims

1. A brightness compensation frame with a dual-LED lighting structure, characterized in that, include: The support component connects the brightness compensation frame to a preset support and can be unfolded in space to a target state for use. and LED light structure, the LED light structure is assembled at the end of the bracket and includes a first light element (1) and a second light element (2) spaced apart. On a two-dimensional target plane (A) orthogonal to the bracket, the light projected by the first light element (1) and the second light element (2) respectively is at least partially overlapped to form a brightness compensation part (B) to cover the object to be imaged. The support member includes a first frame (3) and a second frame (4) pivotally connected. The first frame (3) and the second frame (4) are set at a 45° angle in the target state, and each has a first free end (31) and a second free end (41) extending outward to connect the first light element (1) and the second light element (2) respectively. The first free end (31) is a plane parallel to the two-dimensional target surface (A), the extension surface of the second free end (41) intersects the two-dimensional target surface (A) at an inclined angle (a), and the light-emitting surfaces of the first light element (1) and the second light element (2) are parallel to the first free end (31) and the second free end (41), respectively.

2. The brightness compensation frame with a dual LED light structure as described in claim 1, characterized in that, The first free end (31) is set at a 45° angle to the extension direction of the first frame (3), and the light emitted by the lamp core of the first lamp element (1) has a first boundary surface (C) and a second boundary surface (D) that intersect at a second angle (b).

3. The brightness compensation frame with a dual LED light structure as described in claim 2, characterized in that, The light emitted by the lamp core of the second lamp element (2) has a third boundary surface (E) and a fourth boundary surface (F) that intersect at a third included angle (c). The second boundary surface (D) and the third boundary surface (E) form the brightness compensation part (B) on the two-dimensional target surface (A).

4. The brightness compensation frame with a dual LED light structure as described in claim 3, characterized in that, The first light element (1) and the second light element (2) are respectively built into the first frame (3) and the second frame (4). The light-emitting surface of the first light element (1) is flush with the first free end (31), and the light-emitting surface of the second light element (2) is flush with the second free end (41). The first included angle (a) is 15°.

5. The brightness compensation frame with a dual LED light structure as described in claim 3, characterized in that, The second included angle (b) is positively correlated with the size of the light-emitting surface of the first light-emitting element (1), the third included angle (c) is positively correlated with the size of the light-emitting surface of the second light-emitting element (2), and the range of the brightness compensation part (B) is greater than 297mm×420mm.

6. The brightness compensation frame with a dual LED light structure as described in claim 3, characterized in that, Both the first light element (1) and the second light element (2) are LED light strips, and the extended cross-sections of both at any position along their own length direction intersect the two-dimensional target surface (A) perpendicularly. The second included angle (b) is 90° and the third included angle (c) is 99°.

7. The brightness compensation frame with a dual LED light structure as described in claim 1, characterized in that, The support also includes a third frame (5), which, the first frame (3), and the second frame (4) are connected by hinges and are respectively configured to equip themselves with a freeform mirror (6), a plane mirror (7), and an imaging panel (8).

8. The brightness compensation frame with a dual LED light structure as described in claim 7, characterized in that, It also includes a hydraulic component (9), which includes a first hydraulic rod (91) and a second hydraulic rod (92). The two ends of the first hydraulic rod (91) are respectively hinged to the third frame (5) and the first frame (3), and the two ends of the second hydraulic rod (92) are respectively hinged to the first frame (3) and the second frame (4).

9. The brightness compensation frame with a dual LED light structure as described in claim 8, characterized in that, The extension and retraction control processes of the first hydraulic rod (91) and the second hydraulic rod (92) are independent of each other; when the first hydraulic rod (91) is in the extended state, the LED light structure projects the brightness compensation part (B) onto the two-dimensional target surface (A) to compensate the brightness of the object placed on the two-dimensional target surface (A).

10. A remote image reading and writing device, characterized in that, Including the brightness compensation frame with a dual LED light structure as described in any one of claims 1-9.

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