Light source type switching mechanism of AOI wet film detection camera
By designing a light source type switching mechanism in the AOI wet lens inspection of contact lenses, and utilizing the circular aperture plate and grating plate switching components, multiple light sources can be integrated to improve inspection accuracy and defect identification capabilities. This approach is suitable for various light source requirements and balances safety and ease of observation.
Patent Information
- Application Number
- CN202520799671.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-25
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-04-25
AI Technical Summary
In current AOI wet lens inspection of contact lenses, it is difficult to integrate multiple light sources in a dark chamber with limited space, which affects the inspection accuracy and defect identification capability.
An AOI wet film inspection camera light source type switching mechanism was designed, which includes a dark box, a surface light source, a circular aperture plate switching component, and a grating plate switching component. The light source mode is switched by moving the circular aperture plate and the grating plate through a cylinder. Combined with the light guide of the lens barrel, multi-dimensional inspection is achieved.
It improves detection accuracy and defect identification capabilities, is suitable for various lighting scenarios, and balances safety and ease of observation.
Smart Images
Figure CN223955937U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to contact lens detection technical field, concretely is AOI wet sheet detection camera light source type switching mechanism. BACKGROUND
[0002] AOI wet sheet detection process is the key quality control link in contact lens production process, is mainly used for in contact lens is in wet state (usually soaks in physiological saline or storage solution), through optical imaging and image analysis technology detects the surface defect, size accuracy, edge integrity, center thickness etc.
[0003] In contact lens AOI (automatic optical detection) wet sheet detection, light source type switching is the key technical means of improving detection precision and defect recognition ability. By switching the light source illumination type, different defect characteristics can be optimized, thereby significantly enhancing image contrast, suppressing interference, and realizing multi-dimensional defect capture. The current industry design can only detect a single light source in a dark box, and it is difficult to realize multi-light source integration in a space-limited dark box. UTILITY MODEL CONTENTS
[0004] The utility model aims at providing AOI wet sheet detection camera light source type switching mechanism, has solved the problem raised in above -mentioned background art.
[0005] In order to achieve the above object, the utility model provides the following technical scheme: AOI wet sheet detection camera light source type switching mechanism, including dark box and the surface light source, round hole plate switching assembly and grating plate switching assembly arranged in the dark box.
[0006] The surface light source is fixed in the dark box, the round hole plate switching assembly is arranged above the surface light source, and the grating plate switching assembly is arranged below the surface light source.
[0007] The round hole plate switching assembly includes a first cylinder and a round hole plate body, the first cylinder is fixed to the inner side wall of the dark box, and the round hole plate body is fixed to the output end of the first cylinder. The first cylinder pushes the round hole plate body to move, so that the position of the round hole plate body is changed, and the round hole plate body is switched.
[0008] The grating plate switching assembly includes a second cylinder and a grating plate body, the second cylinder is fixed to the inner side wall of the dark box, the grating plate body is fixed to the output end of the second cylinder, and the grating plate body is located above the surface light source. The second cylinder pushes the grating plate body to move, changes the position of the grating plate body, and switches the grating plate body.
[0009] As preferred in the utility model, the dark box bottom is provided with an opening, and when in use, the surface light source directly irradiates the detected lens (the lens is placed in the container with the bottom embedded lens) through the opening (from below to above) of the dark box.
[0010] As the utility model prefers, the outer shell is arranged outside the dark box and has a protective effect.
[0011] As the utility model prefers, an observation window is arranged above the outer shell to facilitate camera recording.
[0012] As the utility model prefers, a plurality of lens barrels are arranged on the round hole plate body, and the lens barrels correspond to the face light source to irradiate the lenses in the container.
[0013] As the utility model prefers, the lens barrel is a conical lens barrel to facilitate light guiding or diffusion.
[0014] Compared with the prior art, the utility model has the beneficial effects that:
[0015] The utility model flexibly switches the light source mode through the round hole plate switching assembly and the grating plate switching assembly, improves the detection precision in combination with the lens barrel light guiding, and the protective outer shell considers safety and observation convenience. It is suitable for multi-scene light source requirements in lens detection. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;
[0017] Figure 2 It is an internal structure schematic diagram of the utility model;
[0018] Figure 3 It is a bottom structure schematic diagram of the utility model;
[0019] Figure 4 It is a front structure schematic diagram of the utility model.
[0020] In the figure: 1, dark box; 101, opening; 2, round hole plate switching assembly; 201, first air cylinder; 202, round hole plate body; 2021, lens barrel; 3, grating plate switching assembly; 301, second air cylinder; 302, grating plate body; 4, face light source; 5, outer shell; 501, observation window. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0022] In the description of the utility model, it needs to explain that, the terms "vertical", "upper", "lower", "horizontal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.
[0023] In the description of the utility model, it also needs to explain that, unless otherwise explicitly specified and limited, the terms "set", "install", "connect", "connect" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific situation.
[0024] Please refer to Figures 1-4 The utility model provides a technical scheme: AOI wet film detection camera light source type switching mechanism, including dark box 1 and the surface light source 4, round hole plate switching assembly 2 and grating plate switching assembly 3 that are arranged in the dark box 1.
[0025] The surface light source 4 is fixed in the dark box 1, the round hole plate switching assembly 2 is arranged above the surface light source 4, and the grating plate switching assembly 3 is arranged below the surface light source 4.
[0026] The round hole plate switching assembly 2 includes a first cylinder 201 and a round hole plate main body 202, the first cylinder 201 is fixed to the inner side wall of the dark box 1, and the round hole plate main body 202 is fixed to the output end of the first cylinder 201. The round hole plate main body 202 is moved by the first cylinder 201 to change the position of the round hole plate main body 202, so as to switch the round hole plate main body 202.
[0027] The grating plate switching assembly 3 includes a second cylinder 301 and a grating plate main body 302, the second cylinder 301 is fixed to the inner side wall of the dark box 1, and the grating plate main body 302 is fixed to the output end of the second cylinder 301, and the grating plate main body 302 is located above the surface light source 4. The grating plate main body 302 is moved by the second cylinder 301 to change the position of the grating plate main body 302, so as to switch the grating plate main body 302.
[0028] Further, the dark box 1 is provided with an opening 101 at the bottom, and when in use, the surface light source 4 directly irradiates the detected lens (the lens is placed in the container with the bottom embedded lens) through the opening 101 (from bottom to top) of the dark box 1.
[0029] Further, the outer shell 5 is arranged on the outer side of the dark box 1, and the outer shell 5 plays a protection effect.
[0030] Further, an observation window 501 is arranged above the outer housing 5, and the observation window 501 is arranged to facilitate camera recording.
[0031] Further, a plurality of lens barrel bodies 2021 are arranged on the round hole plate body 202, and the face light source 4 passes through the lens barrel bodies 2021 on the round hole plate body 202 to correspondingly irradiate the lenses in the container.
[0032] Further, the lens barrel bodies 2021 are conical lens barrels to facilitate light guiding or diffusion.
[0033] In summary, the device first moves the round hole plate switching assembly 2 and the grating plate switching assembly 3 to the left side (as shown in the left side), so that the face light source 4 directly irradiates the lenses to be detected (the lenses are placed in the container with lenses embedded on the bottom surface) through the opening 101 of the dark box 1 (from bottom to top), and the camera records above the container. Figure 4 Then, the first cylinder 201 is started to move the round hole plate body 202 to the right side, so that the round hole plate body 202 is moved above the face light source 4, and the face light source 4 passes through the conical lens barrel bodies 2021 on the round hole plate body 202 to correspondingly irradiate the lenses in the container, and the camera records. Finally, the first cylinder 201 moves the round hole plate body 202 to the left, and then the second cylinder 301 is started to move the grating plate body 302 above the face light source 4, so that the face light source 4 passes through the grating plate body 302 to form a structured light (striped projection), and the camera records. In this way, multi-dimensional detection is realized.
[0034] It is worth noting that the entire device is controlled by a total control button, and since the control button is matched with a commonly used device, it belongs to the existing mature technology, and the electrical connection relationship and the specific circuit structure are not described here.
[0035] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1.An AOI wet film detection camera light source type switching mechanism, characterized in that: The utility model relates to a kind of dark box and the face light source (4) inside the dark box (1) is provided with, round hole plate switching component (2) and grating plate switching component (3);The face light source (4) is fixed inside the dark box (1), and round hole plate switching component (2) is arranged above face light source (4), and grating plate switching component (3) is arranged below face light source (4); The utility model relates to a kind of dark box and the face light source (4) inside the dark box (1) is provided with, round hole plate switching component (2) and grating plate switching component (3);The face light source (4) is fixed inside the dark box (1), and round hole plate switching component (2) is arranged above face light source (4), and grating plate switching component (3) is arranged below face light source (4); The utility model relates to a kind of dark box and the face light source (4) inside the dark box (1) is provided with, round hole plate switching component (2) and grating plate switching component (3);The face light source (4) is fixed inside the dark box (1), and round hole plate switching component (2) is arranged above face light source (4), and grating plate switching component (3) is arranged below face light source (4); The utility model relates to a kind of dark box and the face light source (4) inside the dark box (1) is provided with, round hole plate switching component (2) and grating plate switching component (3);The face light source (4) is fixed inside the dark box (1), and round hole plate switching component (2) is arranged above face light source (4), and grating plate switching component (3) is arranged below face light source (4); 2. The AOI wet sheet inspection camera light source type switching mechanism according to claim 1, characterized in that: The utility model relates to a kind of dark box and the face light source (4) inside the dark box (1) is provided with, round hole plate switching component (2) and grating plate switching component (3);The face light source (4) is fixed inside the dark box (1), and round hole plate switching component (2) is arranged above face light source (4), and grating plate switching component (3) is arranged below face light source (4); 3. The AOI wet sheet inspection camera light source type switching mechanism according to claim 1, characterized in that: The utility model relates to a kind of dark box and the face light source (4) inside the dark box (1) is provided with, round hole plate switching component (2) and grating plate switching component (3);The face light source (4) is fixed inside the dark box (1), and round hole plate switching component (2) is arranged above face light source (4), and grating plate switching component (3) is arranged below face light source (4); 4. The AOI wet sheet detection camera light source type switching mechanism according to claim 3, characterized in that: The utility model relates to a kind of dark box and the face light source (4) inside the dark box (1) is provided with, round hole plate switching component (2) and grating plate switching component (3);The face light source (4) is fixed inside the dark box (1), and round hole plate switching component (2) is arranged above face light source (4), and grating plate switching component (3) is arranged below face light source (4); 5. The AOI wet sheet detection camera light source type switching mechanism according to claim 1, characterized in that: The utility model relates to a kind of dark box 6. The AOI wet sheet detection camera light source type switching mechanism according to claim 5, characterized in that: