Preparation method of closed eyeball module with built-in camera and composite sphere

Abstract

The present invention relates to the field of bionic eyeball technology, and more particularly to a closed eyeball module with a built-in camera, comprising a composite sphere, a camera module, a crosshead, and a fixed assembly. The camera module is partially disposed within the composite sphere and connected to the crosshead, while partially extending through the crosshead and the fixed assembly for electrical connection to an external mechanical brain. The fixed assembly is fixedly connected to the composite sphere, and the crosshead is partially located between the composite sphere and the fixed assembly, while partially extending through the fixed assembly for mechanical connection to an external mechanical brain. The present invention also relates to a method for preparing the composite sphere, comprising the following steps: Step S1: preparing several small segments of textile fiber and coating an optical sphere cover with transparent photosensitive adhesive; Step S2: placing the small segments of textile fiber in the optical sphere cover coated with transparent photosensitive adhesive in a manner similar to the arrangement of bloodshot in an eyeball, and simultaneously curing the optical sphere cover with ultraviolet light to obtain an optical sphere cover with bloodshot attached to its inner surface.

Description

Technical field

[0001] The present invention relates to the technical field of bionic eyeballs, and in particular to a closed eyeball module with a built-in camera and a preparation method of a composite sphere. [Background Technology]

[0002] Some robotic eyeballs on the market are mostly artificially made. Their basic manufacturing process uses liquid resin with or without additives as raw material, and is cast, wrapped, and modified layer by layer through different levels of molds, from the inner sclera embryo, to the middle iris and pupil, and finally to the transparent cornea layer, and finally polished into shape. Most of them are solid or nearly solid layered composite monomer structures. They are mostly used in medicine to repair and beautify eye defects, and as facial features modification for wax figures and statues; or they are made using 3D printing, CNC cutting, etc., and are generally characterized by an external spherical or nearly hemispherical single-layer thin-walled shell, with an open mechanical structure inside the shell that has certain load-bearing and movable functions. Some technical solutions involve opening a hole in the middle of the shell and installing a camera inside the shell.

[0003] However, handmade bionic eyeballs are mostly solid or nearly solid layered composite monomers, without targeted mechanical load-bearing structure design, and need to undergo secondary processing such as grinding, bonding, and inlaying to have a suitable assembly structure; the operation is relatively complicated and time-consuming, and the finished product has no other practical functions except for its strong simulation and decorative effect, and cannot play a deeper role in the field of robotics; mechanically made bionic eyeballs are generally external spherical or nearly hemispherical single-layer thin-walled shells, without the transparent cornea, blood vessels, sclera, iris, pupil and other external structures of biological eyeballs, with insufficient degree of simulation and strong dependence. They are usually used as parts and designed in an open-ended manner with the main body of the simulation robot, rather than independent modularization, so they are not very versatile. Although some mechanical eyeballs can have built-in cameras, the structure is bulky and the cameras are mostly naked, which is easy to contaminate and difficult to clean. The low degree of simulation and high maintenance cost are not conducive to the further development of the field of robotic eyeballs.

[0004] Therefore, the existing technology is insufficient and needs to be improved. [Summary of the invention]

[0005] In order to overcome the above-mentioned technical problems, the present invention provides a closed eyeball module with a built-in camera and a method for preparing a composite sphere.

[0006] The solution to the technical problem of the present invention is to provide an enclosed eyeball module with a built-in camera, including a composite sphere, a camera module, a cross-head and a fixed component. The camera module is partially arranged in the whole composed of the cross-head and the composite sphere and connected to the cross-head, and partially passes through the cross-head and the fixed component to be electrically connected to an external mechanical brain. The fixed component is fixedly connected to the composite sphere, and the cross-head is partially located between the composite sphere and the fixed component, and partially passes through the fixed component to be mechanically connected to an external mechanical brain.

[0007] Preferably, the camera module includes a camera fixing seat, a camera and a camera FPC flexible board. The camera fixing seat wraps and fixes the front end of the camera, the rear end of the camera is connected to the cross bit, and one end of the camera is also fixedly connected and electrically connected to the camera FPC flexible board. The camera fixing seat and the camera are arranged in a whole composed of the cross bit and the composite sphere. The camera FPC flexible board partially passes through the cross bit and the fixing component, and a camera hole is opened on the camera fixing seat.

[0008] Preferably, the light incident angle of the camera hole is greater than or equal to the field of view of the camera.

[0009] Preferably, a bionic iris is coated on the side of the camera fixing base away from the cross-section.

[0010] Preferably, the fixing assembly includes an outer pressure plate, an inner pressure plate and a screw. The inner pressure plate is located between the composite sphere and the outer pressure plate. Corresponding first connecting holes and second connecting holes are opened on the outer pressure plate and the inner pressure plate. The screw is connected to the composite sphere by passing through the first connecting hole and the second connecting hole.

[0011] Preferably, a third connecting hole corresponding to the second connecting hole is opened on the cross-hole, and threaded holes corresponding to the first connecting hole, the second connecting hole and the third connecting hole are opened in the composite sphere. The screw is fixed to the composite sphere by passing through the first connecting hole, the second connecting hole and the third connecting hole to achieve threaded connection with the threaded holes.

[0012] Preferably, a first through hole and a second through hole are respectively opened in the middle positions of the outer pressure plate and the inner pressure plate, and the cross-shaped portion passes through the second through hole and the first through hole.

[0013] Preferably, the eyeball module of the closed built-in camera also includes two push rod ball heads, two first ball sockets are opened on the outer pressure plate, and the central angle corresponding to the two first ball sockets is 90°, and second ball sockets corresponding to the two first ball sockets are opened on the inner pressure plate, and the two push rod ball heads partially pass through the first ball socket hole and the second ball socket hole respectively and contact the cross byte, and the end of the push rod ball head away from the composite sphere is connected to the external mechanical brain.

[0014] Preferably, the composite sphere comprises an optical spherical cover with bloodshot attached to the inner surface thereof and a photosensitive rubber spherical core, and the photosensitive rubber spherical core is injection-molded into the optical spherical cover through an external mold.

[0015] The present invention also provides a method for preparing a composite sphere, which includes an optical ball cover and includes the following steps: Step S1: preparing several small segments of textile fibers and coating the optical ball cover with transparent photosensitive adhesive; Step S2: placing the small segments of textile fibers in the optical ball cover coated with transparent photosensitive adhesive in the manner of bloodshot eyeballs, and simultaneously curing them with ultraviolet light to obtain an optical ball cover with bloodshot attached to the inner surface; Step S3: pouring the photosensitive adhesive into a mixing cup, adding aggregate and coloring material and stirring evenly to form an injection molding material; Step S4: embedding the optical ball cover with bloodshot attached to the surface into a glue injection mold, extracting the injection molding material and injecting the injection molding material through the glue injection port of the glue injection mold; Step S5: using UV light irradiation to shape the injection molding material into a photosensitive adhesive ball core, and fixing the photosensitive adhesive ball core in the optical ball cover to form a composite sphere.

[0016] Compared with the prior art, the enclosed eyeball module with built-in camera of the present invention has the following advantages:

[0017] The eyeball module of the enclosed built-in camera of the present invention is easy to install and disassemble, convenient to clean and maintain, with high integration and compact structure, which is conducive to the development in the direction of refinement, provides a large space margin for the development of the robot in terms of brain, and is conducive to workers to further expand the relevant structures and functions of the robot's brain. It has a high degree of simulation and has highly simulated the structures of the cornea, blood vessels, iris, etc. in the eyeball. It has good derivability and can derive simulated eyeballs that are composite of humans and various animals by changing the size of the composite sphere. It has strong versatility and is suitable for the development of products in the direction of serialization, which is conducive to enterprises to expand their market share and benefits.

Brief Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the eyeball module with a closed built-in camera of the present invention.

[0019] Figure 2 It is a schematic diagram of the exploded structure of the eyeball module with a closed built-in camera of the present invention.

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the camera fixing seat of the present invention.

[0021] Figure 4 It is a specific flow chart of the preparation method of the composite sphere of the present invention.

[0022] Description of reference numerals:

[0023] 1. Eyeball module with closed built-in camera; 2. Composite sphere; 3. Camera module; 4. Cross digit; 5. Fixing assembly; 6. Push rod ball head; 7. Camera fixing seat; 8. Camera; 9. Camera FPC flexible board; 10. Camera hole; 11. Thermal gel pad; 12. External pressure plate; 13. Internal pressure plate; 14. Screw; 15. First connecting hole; 16. Second connecting hole; 17. Third connecting hole; 18. Threaded hole; 19. First through hole; 20. Second through hole; 21. Third through hole; 22. First ball socket; 23. Second ball socket; 24. Optical ball cover; 25. Photosensitive adhesive ball core; 41. Bionic iris. [Specific implementation method]

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and implementation examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0025] See also Figure 1-Figure 3 The present invention provides an enclosed eyeball module 1 with a built-in camera, which is used to connect to an external mechanical brain to act as a "human eye", including a composite sphere 2, a camera module 3, a cross head 4, a fixed component 5 and two push rod ball heads 6. The camera module 3 is partially arranged in the whole composed of the cross head 4 and the composite sphere 2 and is connected to the cross head 4, and partially passes through the cross head 4 and the fixed component 5. The fixed component 5 is fixedly connected to the composite sphere 2. The cross head 4 is partially located between the composite sphere 2 and the fixed component 5, and partially passes through the fixed component 5. The two push rod ball heads 6 respectively pass through the fixed component 5 and contact the cross head 4.

[0026] Among them, the camera module 3 is electrically connected to the external mechanical brain, and one end of the cross 4 is mechanically connected to the external mechanical brain after passing through the fixed component 5, wherein the cross 4 includes a front end and a rear end, the front end and the rear end are hinged by a rotating cross axis, and the end of the push rod ball head 6 away from the composite sphere 2 is mechanically connected to the external mechanical brain.

[0027] Furthermore, the camera module 3 includes a camera mount 7, a camera 8, and a camera FPC flexible board 9. The camera mount 7 wraps around and secures the front end of the camera 8. The rear end of the camera 8 is connected to the crossbar 4. One end of the camera 8 is also fixedly and electrically connected to one end of the camera FPC flexible board 9. The camera mount 7 and the camera 8 are disposed within the integral structure formed by the crossbar 4 and the composite sphere 2. The camera FPC flexible board 9 partially passes through the crossbar 4 and the fixing assembly 5. The other end of the camera FPC flexible board 9 is electrically connected to an external mechanical brain. A camera hole 10 is provided on the camera mount 7 to enable the camera 8 to normally record images.

[0028] Preferably, a thermally conductive gel pad 11 is provided between the camera 8 and the crossbar 4, and is fixedly connected to the front ends of the camera 8 and crossbar 4, respectively. The thermally conductive gel pad 11 is used to accelerate the rapid dissipation of heat generated by the camera 8, thereby reducing the probability of burnout of the camera 8 and increasing its battery life. Furthermore, preferably, the front end of the crossbar 4 is made of metal, so that the heat transferred from the thermally conductive gel pad 11 to the front end of the crossbar 4 can be further quickly dissipated.

[0029] Preferably, the light incident fixture of the camera hole 10 is greater than or equal to the field of view angle of the camera 8, so that the camera 8 will not be blocked by the camera fixing base 7 during the shooting process, which is conducive to improving the "field of view" and improving the completeness of the shot; a bionic iris 41 is coated on the side of the camera fixing base 7 away from the cross 4, so that the eyeball module 1 of the closed built-in camera has a higher degree of bionics in terms of the eye.

[0030] Furthermore, the fixing assembly 5 includes an outer pressure plate 12, an inner pressure plate 13, and screws 14. The inner pressure plate 13 is located between the composite sphere 2 and the outer pressure plate 12. Corresponding first and second connection holes 15, 16 are provided on the outer pressure plate 12 and the inner pressure plate 13. A third connection hole 17 corresponding to the second connection hole 16 is provided on the cross 4. Threaded holes 18 corresponding to the first, second, and third connection holes 15, 16, and 17 are provided in the composite sphere 2. The screws 14 are fixed to the composite sphere 2 by passing through the first, second, and third connection holes 15, 16, and 17 to achieve threaded connection with the threaded holes 18. The inner pressure plate 13 serves as a reinforcing pad to enhance the stability of the connection between the fixing assembly 5 and the composite sphere 2. The outer pressure plate 12 serves as a housing to protect the components between it and the composite sphere 2 from being easily contacted or scratched by the outside world, which helps to increase their service life. The overall shape of the outer pressure plate 12 and the inner pressure plate 13 are both circular.

[0031] Furthermore, a first through hole 19 and a second through hole 20 are respectively opened in the middle position of the outer pressure plate 12 and the inner pressure plate 13, and the cross 4 part passes through the second through hole 20 and the first through hole 19 to connect with the external mechanical brain.

[0032] Preferably, a third through hole 21 is provided on both the outer pressure plate 12 and the inner pressure plate 13 , and the camera FPC flexible board 9 passes through the third through hole 21 to avoid the possibility of being pinched and damaged during winding.

[0033] Furthermore, two first ball sockets 22 are provided on the outer pressure plate 12, and the central angle corresponding to the two first ball sockets 22 is 90°. A second ball socket 23 corresponding to the two first ball sockets 22 is provided on the inner pressure plate 13. The two push rod heads 6 partially pass through the first ball socket 22 and the second ball socket 23 respectively and contact the cross 4. The end of the push rod head 6 away from the composite sphere 2 is connected to the external mechanical brain. The external mechanical brain can rotate the eyeball module 1 of the closed built-in camera in two perpendicular directions by a certain angle by manipulating the push rod head 6, which is conducive to improving the degree of bionics and the flexibility of the product. Preferably, one of the two first ball sockets 22 is in the horizontal direction and the other is in the vertical direction. In this way, the external mechanical brain controls the product in the horizontal and vertical directions.

[0034] Preferably, the composite sphere 2 includes an optical sphere cover 24 with blood-streaked inner surface and a photosensitive rubber core 25. The photosensitive rubber core 25 is injection molded into the optical sphere cover 24 through an external mold. The blood-streaked inner surface of the optical sphere cover 24 is conducive to improving the degree of bionics.

[0035] See also Figure 4 The present invention also provides a method for preparing a composite sphere, including an optical spherical cover, comprising the following steps:

[0036] Step S1: preparing several small pieces of textile fibers and coating the inside of the optical dome with transparent photosensitive adhesive;

[0037] Step S2: placing small pieces of textile fiber in an optical dome coated with transparent photosensitive adhesive in a pattern similar to bloodshot eyelids, and curing the optical dome with ultraviolet light to obtain an optical dome with bloodshot eyes attached to its inner surface;

[0038] Step S3: Pour the photosensitive adhesive into a mixing cup, add the aggregate and colorant, and mix well to form an injection molding material;

[0039] Step S4: embedding the optical dome cover with bloodshot on the surface into a glue injection mold, extracting the injection material and injecting the injection material through the injection port of the glue injection mold;

[0040] Step S5: UV light is used to shape the injection molding material into a photosensitive resin ball core, and the photosensitive resin ball core is fixed in the optical ball cover to form a composite sphere.

[0041] Through this method, the external features of a more complex real "eyeball" can be prepared, which is conducive to increasing the degree of bionics.

[0042] Compared with the prior art, the enclosed eyeball module with built-in camera of the present invention has the following advantages:

[0043] The eyeball module of the enclosed built-in camera of the present invention is easy to install and disassemble, convenient to clean and maintain, with high integration and compact structure, which is conducive to the development in the direction of refinement, provides a large space margin for the development of the robot in terms of brain, and is conducive to workers to further expand the relevant structures and functions of the robot's brain. It has a high degree of simulation and has highly simulated the structures of the cornea, blood vessels, iris, etc. in the eyeball. It has good derivability and can derive simulated eyeballs that are composite of humans and various animals by changing the size of the composite sphere. It has strong versatility and is suitable for the development of products in the direction of serialization, which is conducive to enterprises to expand their market share and benefits.

[0044] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any modifications, equivalent replacements and improvements made within the concept of the present invention should be included in the patent protection scope of the present invention.

Claims

1. A closed eyeball module with a built-in camera, used to connect to an external mechanical brain, characterized by: The eyeball module of the enclosed built-in camera includes a composite sphere, a camera module, a crosshead and a fixed component, wherein a portion of the camera module is disposed within the integral body formed by the crosshead and the composite sphere and connected to the crosshead, and a portion passes through the crosshead and the fixed component to be electrically connected to an external mechanical brain, the fixed component being fixedly connected to the composite sphere, a portion of the crosshead is located between the composite sphere and the fixed component, and a portion passes through the fixed component to be mechanically connected to an external mechanical brain; The fixing assembly includes an outer pressure plate, an inner pressure plate and screws, and the inner pressure plate is located between the composite sphere and the outer pressure plate; The composite sphere comprises an optical sphere cover with blood streaks attached to the inner surface thereof and a photosensitive adhesive sphere core, and the photosensitive adhesive sphere core is injection-molded into the optical sphere cover through an external mold.

2. The enclosed eyeball module with a built-in camera as claimed in claim 1, characterized in that: The camera module includes a camera fixing seat, a camera and a camera FPC flexible board. The camera fixing seat wraps and fixes the front end of the camera. The rear end of the camera is connected to the cross bit. One end of the camera is also fixedly connected and electrically connected to the camera FPC flexible board. The camera fixing seat and the camera are arranged in a whole composed of the cross bit and the composite sphere. A part of the camera FPC flexible board passes through the cross bit and the fixing component, and a camera hole is opened on the camera fixing seat.

3. The enclosed eyeball module with a built-in camera as claimed in claim 2, wherein: The incident angle of light of the camera hole is greater than or equal to the field of view angle of the camera.

4. The enclosed eyeball module with a built-in camera as claimed in claim 2, wherein: A bionic iris is coated on a surface of the camera fixing base away from the cross-point.

5. The enclosed eyeball module with a built-in camera as claimed in claim 1, wherein: The outer pressure plate and the inner pressure plate are provided with corresponding first connection holes and second connection holes, and the screws are connected to the composite sphere by passing through the first connection holes and the second connection holes.

6. The enclosed eyeball module with a built-in camera as claimed in claim 5, characterized in that: A third connecting hole corresponding to the second connecting hole is opened on the cross nut, and threaded holes corresponding to the first connecting hole, the second connecting hole and the third connecting hole are opened in the composite sphere. The screw is fixed to the composite sphere by passing through the first connecting hole, the second connecting hole and the third connecting hole to achieve threaded connection with the threaded holes.

7. The enclosed eyeball module with a built-in camera as claimed in claim 5, characterized in that: A first through hole and a second through hole are respectively opened in the middle positions of the outer pressure plate and the inner pressure plate, and a part of the cross nut passes through the second through hole and the first through hole.

8. The enclosed eyeball module with a built-in camera as claimed in claim 5, wherein: The eyeball module of the closed built-in camera also includes two push rod ball heads, two first ball sockets are opened on the outer pressure plate, and the central angle corresponding to the two first ball sockets is 90°, and second ball sockets corresponding to the two first ball sockets are opened on the inner pressure plate. The two push rod ball heads partially pass through the first ball socket hole and the second ball socket hole respectively and contact the cross byte, and the end of the push rod ball head away from the composite sphere is connected to the external mechanical brain.

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