CN113203708A - Optical device - Google Patents
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- CN113203708A CN113203708A CN202110466406.9A CN202110466406A CN113203708A CN 113203708 A CN113203708 A CN 113203708A CN 202110466406 A CN202110466406 A CN 202110466406A CN 113203708 A CN113203708 A CN 113203708A
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- 238000001514 detection method Methods 0.000 claims abstract description 67
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- 230000000903 blocking effect Effects 0.000 claims description 6
- 238000002791 soaking Methods 0.000 claims description 6
- 238000003672 processing method Methods 0.000 claims description 4
- 230000007547 defect Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 12
- 238000009792 diffusion process Methods 0.000 description 10
- 239000011324 bead Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 239000000243 solution Substances 0.000 description 6
- 239000004743 Polypropylene Substances 0.000 description 3
- 239000004793 Polystyrene Substances 0.000 description 3
- 238000012634 optical imaging Methods 0.000 description 3
- 229920000515 polycarbonate Polymers 0.000 description 3
- 239000004417 polycarbonate Substances 0.000 description 3
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- 229920001155 polypropylene Polymers 0.000 description 3
- 229920002223 polystyrene Polymers 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 238000003491 array Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- 229920005372 Plexiglas® Polymers 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 210000004087 cornea Anatomy 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
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- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N21/4738—Diffuse reflection, e.g. also for testing fluids, fibrous materials
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N21/4738—Diffuse reflection, e.g. also for testing fluids, fibrous materials
- G01N2021/4764—Special kinds of physical applications
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Optical Elements Other Than Lenses (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
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- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The present disclosure provides an optical device comprising: a light source; the shading plate is provided with an annular light-transmitting structure and is arranged above the light source; the condensing lens is arranged on the light shading plate and corresponds to the position of the annular light-transmitting structure; the detection carrier is provided with a detection accommodating groove for arranging the color printing contact lens to be detected, at least part of the detection carrier can transmit light, and the detection carrier is arranged on the condensing lens; at least part of light emitted by the light source can be sequentially emitted by the annular light-transmitting structure, converged by the condensing lens and emitted, and transmitted to the detection container carrier and irradiate the to-be-detected color-printed contact lens arranged in the detection container tank, so that the diffuse reflection can be generated on the physical defects on the lens surface of the to-be-detected color-printed contact lens, and the development of the pattern part of the lens is avoided.
Description
Technical Field
The present disclosure relates to the field of optical technology, and in particular, to an optical device.
Background
A contact lens is a lens that is worn on the cornea of an eye to correct vision or protect the eye. It includes three kinds of hard, semi-hard and soft according to the hardness of the material. Most contact lenses are currently soft. The quality inspection difficulty of the soft contact lenses is very high, the lenses are made of transparent materials, and the soft contact lenses float in liquid under most process conditions. Color printed contact lenses (commonly referred to as "cosmetic pupils") are formed by color printing techniques and equipment that print colored patterns and designs on the surface of soft contact lenses. The center of the pattern or motif is typically left blank as the optical zone of the lens, consistent with the function of a non-color printed contact lens. The patterns and the decorative patterns of the color printing area play a role in beautifying. However, the printed patterns and designs cover or overlap physical defects in the lens portion area during optical imaging, as shown in fig. 1, which makes the physical defects in the color printed area of the color printed contact lens difficult to detect by machine vision detection.
Disclosure of Invention
The present disclosure proposes an optical device for solving the problem of physical imperfections of the currently color printed contact lens color printed area being covered or overlapped by patterns and motifs in the optical imaging.
The present disclosure provides an optical device comprising: a light source; the shading plate is provided with an annular light-transmitting structure and is arranged above the light source; the condensing lens is arranged on the light shading plate and corresponds to the position of the annular light-transmitting structure; the detection carrier is provided with a detection accommodating groove for arranging the color printing contact lens to be detected, at least part of the detection carrier can transmit light, and the detection carrier is correspondingly arranged on the condensing lens; at least part of light emitted by the light source can be emitted by the annular light-transmitting structure, converged by the condensing lens and emitted, transmitted through the detection container carrier and irradiate the to-be-detected color printing contact lens arranged in the detection container.
In some optional embodiments, a main optical axis of the condensing lens is coaxial or approximately coaxial with a center of the annular light-transmitting structure, and the main optical axis of the condensing lens is perpendicular or approximately perpendicular to a plane in which the annular light-transmitting structure is located.
In some optional embodiments, the light source comprises: a light emitting unit and a diffusion plate;
the diffusion plate is arranged on the light-emitting unit and can diffuse the light emitted by the light-emitting unit.
In some alternative embodiments, the shutter plate comprises a shutter portion having a circular aperture and a shutter disk having a diameter smaller than the circular aperture, the shutter disk being disposed within and concentric with the circular aperture;
and the annular light-transmitting structure is formed by a gap between the shading wafer and the round hole.
In some optional embodiments, the light blocking plate further comprises a light-transmissive fixing portion;
the light-transmitting fixing part is connected with the light-shielding part and the light-shielding wafer and covers the annular light-transmitting structure.
In some optional embodiments, the focus of the condenser lens corresponding to the detection carrier side has a preset distance from the detection accommodating groove.
In some optional embodiments, a soaking solution is disposed in the detection holding tank.
In some alternative embodiments, the light source emits light in a wavelength range that includes at least one of:
monochromatic light, white light or infrared light.
In some optional embodiments, the apparatus further comprises: an image acquisition device;
the image acquisition device is arranged above the detection carrier of the optical equipment and can acquire images of the to-be-detected color printing contact lenses arranged in the detection containing grooves of the detection carrier.
In some optional embodiments, the apparatus further comprises: and the image processing device is connected with the image acquisition device in a network manner and is configured to acquire the image acquired by the image acquisition device and process the image by adopting a preset processing method to obtain a detection result of the to-be-detected color printing contact lens.
The present disclosure provides an optical device comprising: a light source; the shading plate is provided with an annular light-transmitting structure and is arranged above the light source; the condensing lens is arranged on the light shading plate and corresponds to the position of the annular light-transmitting structure; the detection carrier is provided with a detection accommodating groove for arranging the color printing contact lens to be detected, at least part of the detection carrier can transmit light, and the detection carrier is correspondingly arranged on the condensing lens; at least part of light emitted by the light source can be sequentially emitted by the annular light-transmitting structure, converged by the condensing lens and emitted, transmitted through the detection container carrier and irradiated on the to-be-detected color printing contact lens arranged in the detection container. The light irradiating the color printing contact lens to be detected has a certain included angle with the main optical axis of the condensing lens instead of directly irradiating the color printing contact lens to be detected along the extension direction of the main optical axis of the convex lens, therefore, if the lens surface of the color printing contact lens to be detected has physical flaws, the flaws can be diffusely reflected, and then the lighted flaws can be shot by the optical influence equipment, and because the light is not direct, the patterns of the smooth part of the lens surface of the color printing contact lens to be detected cannot be developed at the optical image.
Drawings
Other features, objects and advantages of the disclosure will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of a background art optical imaging of a color-printed contact lens to be inspected showing the overlay of a pattern with a physical defect;
fig. 2A is a schematic diagram of a longitudinal cross-sectional structure of an optical device 200 according to an embodiment of the present disclosure;
FIG. 2B is a schematic optical path diagram of an optical device 200 according to an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of a partial structure of an optical device 300 according to one embodiment of the present disclosure;
FIG. 4 is a schematic block diagram of an optical device 400 according to yet another embodiment of the present disclosure;
FIG. 5A is a schematic diagram of a top view configuration of a shutter plate 2 in an optical apparatus according to some embodiments of the present disclosure;
FIG. 5B is a schematic diagram of a longitudinal cross-sectional configuration of a mask 2 in an optical apparatus according to some embodiments of the present disclosure;
FIG. 6 is a schematic block diagram of an optical device 600 according to yet another embodiment of the present disclosure;
fig. 7 is an image of an optical apparatus 600 acquired of a color printed contact lens to be inspected according to an embodiment of the present disclosure.
Description of the symbols: 1-a light source; 11-a light-emitting unit; 12-a diffuser plate; 2-a light screen; 21-an annular light-transmitting structure; 23-a circular hole; 24-a light-shielding portion; 25-shading round piece; 26-a light-transmissive fixing portion; 3-a condenser lens; 4-detecting the carrier; 41-detecting the accommodating groove; 42-soaking liquid; 5-detecting the color printing contact lens; 6-image acquisition device.
Detailed Description
The present disclosure is described in further detail below with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant disclosure and are not limiting of the disclosure. It should be noted that, for the convenience of description, only the parts relevant to the related disclosure are shown in the drawings.
In the description of the present disclosure, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships and are only used for convenience in describing the present disclosure and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present disclosure. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present disclosure, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present disclosure can be understood by those of ordinary skill in the art as appropriate.
In the description of the present disclosure, it should be noted that the embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict.
Fig. 2A is a schematic diagram of a longitudinal cross-sectional structure of an optical device 200 according to an embodiment of the present disclosure. As shown in fig. 2A, the optical apparatus 200 in the present embodiment includes: light source 1, light screen 2, condenser lens 3 and detection carrier 4. Wherein:
the light shading plate 2 is provided with an annular light-transmitting structure 21, and the light shading plate 2 is arranged on the light source 1. The light source 1 may include various light emitting devices, for example, an incandescent lamp, a fluorescent lamp, a light-emitting diode (LED) lamp, a planar light source, and the like. When the light source 1 is in a light emitting state, due to the shielding of the light shielding plate 2, the light emitted from the light source 1 can be emitted through the annular light-transmitting structure 21 on the light shielding plate 2.
Here, the light shielding plate 2 may be various types of plate-like materials, which the present disclosure does not particularly limit, as long as the light shielding plate 2 can achieve a light shielding effect. The annular light-transmitting structure 21 may be a hollowed-out annular structure, an annular structure filled with a transparent medium, or an annular structure formed by combining a hollowed-out structure and a transparent medium. The specific material of the transparent medium is not limited in this disclosure, for example, the transparent medium may include organic glass, polystyrene, polycarbonate, polypropylene, and the like.
And the condensing lens 3 is arranged on the light shielding plate 2 and corresponds to the position of the annular light-transmitting structure 21. In the present disclosure, the condenser lens 3 may be capable of condensing light, for example, the condenser lens 3 may include a plano-convex lens, a biconvex lens, a meniscus lens, or an optical lens group, which is only an example and is not a specific limitation for the condenser lens 3.
Illustratively, in some alternative embodiments of the present disclosure, a plano-convex lens is selected as the condenser lens 3, and a planar end of the plano-convex lens is parallel to the light-shielding plate 2. It can be understood that one end of the planoconvex lens is a plane, the other end is a convex surface, and parallel light beams are converged and emitted through the convex surface end after entering the planoconvex lens through the plane end. The plano-convex lens can be directly abutted to the light screen 2, and one side of the plano-convex lens is a plane end which can be stably placed on the light screen 2 by directly abutting the light screen 2, and the plane end is directly parallel to the light screen 2, so that the assembly process difficulty of the optical equipment is reduced without independent debugging; a certain distance may also be provided between the light shielding plate 2 to facilitate replacement of the light shielding plate 2 or adjustment of the annular light transmitting structure 21 of the light shielding plate 2.
In the present disclosure, the condenser lens 3 may include a spherical lens or an aspherical lens, and the skilled person can select the lens according to the actual process requirement.
The detection carrier 4 is provided with a detection accommodating groove 41 for arranging the color printing contact lens 5 to be detected, at least part of the detection carrier 4 can transmit light, and the detection carrier 4 is correspondingly arranged on the condensing lens 3. The center of the detection carrier 4 can be arranged coaxially or approximately coaxially with the main optical axis of the condenser lens 3. The detection carrier 4 may be completely transparent or partially transparent, for example: the bottom is transparent or the bottom and the side faces are at least partially transparent near the bottom. The detection carrier 4 may comprise a bowl-shaped translucent container, and the detection carrier 4 is only illustrated and not particularly limited herein.
The fixing method of the device light source 1, the light shielding plate 2, the condenser lens 3 and the detection carrier 4 constituting the optical apparatus 200 is not specifically limited in the present disclosure. For example, the position of at least one device of the light source 1, the light shielding plate 2, the condenser lens 3 and the detection carrier 4 may be fixed by at least one preset fixing bracket, so as to implement the optical apparatus 200.
Fig. 2B is a schematic optical path diagram of an optical device 200 according to an embodiment of the present disclosure. As shown in fig. 2B, at least a portion of the light emitted from the light source 1 can sequentially exit through the annular light-transmitting structure 21, converge through the condensing lens 3 and exit, transmit through the detection container carrier, and irradiate the to-be-detected color-printed contact lens 5 disposed in the detection container 41.
It will be appreciated that light from the light source 1 exits at least partially through the annular light-transmitting structure 21 to form a hollow light column. After the light beam is converged by the condenser lens 3, the emitted light is deflected towards the main optical axis of the condenser lens 3, and the incident angle with a certain included angle with the main optical axis of the convex lens is transmitted through the detection carrier 4 and irradiates the to-be-detected color printing contact lens 5 arranged in the detection accommodating groove 41.
Shine the light of waiting to detect color printing contact lens 5, have certain contained angle with condensing lens 3 principal optical axis, and not directly shine on waiting to detect color printing contact lens 5 along convex lens principal optical axis extending direction, therefore, if there is the physics flaw on the lens surface of waiting to detect color printing contact lens 5, the diffuse reflection can take place in flaw department, and then can be shot by optical effect equipment and the flaw department that is lighted, and because light non-perpendicular projection, consequently wait to detect the pattern of the lens surface smooth part of color printing contact lens 5 and can't develop in optical image department.
In some optional embodiments, as shown in fig. 2A, the soaking solution 42 is disposed in the detection holding tank 41. The soaking solution 42 may include physiological saline or a contact lens care solution. The contact lens 5 to be tested can be soaked in the soaking solution 42 to avoid the influence of drying and dehydration on the testing result during the testing process.
In some alternative embodiments, the condensing lens 3 has a preset distance from the detection accommodating groove 41 corresponding to the focal point of the detection carrier 4 side. It can be understood that the condenser lens 3 has two focal points in the extending direction of the main optical axis toward the two ends, wherein, since the condenser lens 3 corresponds to the side of the light shielding plate 2 as the incident end of light in the present disclosure, the focal point of the condenser lens 3 corresponding to the side of the light shielding plate 2 is not limited. The focal point of the condenser lens 3 on the detection carrier 4 side is located on a straight line extending in the direction of the main optical axis of the condenser lens 3 toward the detection carrier 4 side. So that the distribution of the incident angles of the light illuminating the contact lens 5 to be color-printed is uniform.
The size of the inner diameter and the outer diameter of the annular light-transmitting structure 21 is not specifically limited in the present disclosure, and a skilled person can adjust the inner diameter or the outer diameter of the annular light-transmitting structure 21 according to actual brightness requirements to realize a required aperture size.
Referring to fig. 3, fig. 3 shows a partial structural schematic of an optical device 300 according to one embodiment of the present disclosure.
As shown in fig. 3, in some alternative embodiments, the main optical axis of the condenser lens 3 is coaxial or approximately coaxial with the center of the annular light-transmitting structure 21, and the main optical axis of the condenser lens 3 is perpendicular or approximately perpendicular to the plane of the annular light-transmitting structure 21. Since it is difficult to implement an absolute coaxial or perpendicular relationship in a geometric sense in an actual process, in the present disclosure, the main optical axis of the condensing lens 3 is approximately coaxial with the center of the annular light-transmitting structure 21, which may include that a distance between a straight line where the main optical axis of the condensing lens 3 is located and the center of the annular light-transmitting structure 21 is less than an approximate coaxial determination threshold, and the approximate coaxial determination threshold may be set according to an actual detection precision, for example, the approximate coaxial determination threshold may be set to 5 mm; similarly, in the present disclosure, the fact that the main optical axis of the condensing lens 3 is approximately perpendicular to the plane of the annular light-transmitting structure 21 may include that a relative angle between a straight line of the main optical axis of the condensing lens 3 and the plane of the annular light-transmitting structure 21 is close to 90 degrees, for example, the relative angle may be between 85 and 90 degrees. So that the light emitted through the annular light-transmitting structure 21 is uniformly distributed with the included angle of the main optical axis of the condensing lens 3 after being converged by the condensing lens 3, and then the color-printed contact lens 5 to be detected, which is arranged in the detection accommodating groove 41, can be irradiated at a uniform incident angle, thereby avoiding the influence on the detection result caused by the irradiation of the local dim light area which is non-uniform.
Referring to fig. 4, fig. 4 shows a schematic structural diagram of an optical device 400 according to yet another embodiment of the present disclosure. In some alternative embodiments, the light source 1 comprises: a light emitting unit 11 and a diffusion plate 12. The diffusion plate 12 is provided on the light emitting unit 11, and the diffusion plate 12 can diffuse light emitted from the light emitting unit 11. Here, the light emitting unit 11 may include various types of light emitting elements, for example, the light emitting unit 11 may include at least one LED lamp bead. The specific structure of the diffusion plate 12 is not limited in this disclosure, and the light emitted by the light emitting unit 11 can be diffused by the diffusion plate 12 and then emitted, and the specific structure of the diffusion plate 12 can refer to the prior art. Illustratively, the material of the diffusion plate 12 may include plexiglass, polystyrene, polycarbonate, polypropylene, etc., and the diffusion plate 12 has at least one layer of light-scattering structure formed of the above-mentioned material. Because the LED lamp beads are point light sources, the emitted light is radial, a plane light source can be formed after the light emitted by the LED lamp beads is scattered by the scattering plate 12, the light is uniformly emitted from the scattering plate 12, the light source 1 can emit light through the plane of the scattering plate 12, and the effective irradiation area of the appointed light emitting direction is increased.
In some alternative embodiments, the wavelength range in which the light source 1 emits light includes at least one of: monochromatic light, white light or infrared light. The wavelength at which the light source 1 emits light can be selected by the skilled person according to the detection needs. It can be understood that, to implement different wavelengths, different light emitting units 11 may be disposed on the light source 1 or the light emitting units 11 may be switched, for example, at least one set of three primary color LED arrays including red LED beads, green LED beads and blue LED beads may be disposed as the light emitting units 11, and the control of the wavelength of light emitted by the light source 1 is implemented by respectively controlling the brightness of each color bead in the at least one set of three primary color LED arrays.
Referring to fig. 5A and 5B, fig. 5A and 5B are a schematic top view structure and a schematic longitudinal sectional structure of a light shielding plate 2 in an optical apparatus according to some embodiments of the present disclosure, respectively. In some alternative embodiments, as shown in fig. 5A, the shutter plate 2 includes a light blocking portion 24 having a circular aperture 23 and a light blocking disc 25 having a diameter smaller than the circular aperture 23, the light blocking disc 25 being disposed within the circular aperture 23 and concentric with the circular aperture 23. The gap between the light-shielding wafer 25 and the circular hole 23 forms an annular light-transmitting structure 21. In practical applications, the light shielding portion 24 and the light shielding wafer 25 may be placed on the light emitting surface of the light source 1, and the light shielding plate 2 may be formed by adjusting the positional relationship between the light shielding portion 24 and the light shielding wafer 25.
In some alternative embodiments, as shown in fig. 5B, the light shielding plate 2 further includes a light-transmitting fixing portion 26. The light-transmitting fixing portion 26 connects the light-shielding portion 24 and the light-shielding wafer 25, and covers the annular light-transmitting structure 21. The material of the light-transmitting fixing portion 26 is a transparent medium, and the specific material of the transparent medium is not limited in this disclosure, for example, the transparent medium may include organic glass, polystyrene, polycarbonate, polypropylene, and the like. The light shielding part 24 and the light shielding wafer 25 are fixed by the light transmitting fixing part 26 and the annular light transmitting structure 21 is covered, the structure of the light shielding plate 2 can be supported without depending on the light emitting surface of the light source 1, and a technician can adjust the distance between the light shielding plate 2 and the light source 1 as required.
Fig. 6 is a schematic structural diagram of an optical device 600 according to yet another embodiment of the present disclosure. As shown in fig. 6, the optical apparatus 600 disclosed in fig. 6 is similar to the optical apparatus 200 shown in fig. 2A, except that the optical apparatus 600 further includes: an image acquisition device 6. The image acquisition means 6 may comprise a camera or a video camera.
The image acquisition device 6 is arranged above the detection carrier 4 and can acquire images of the to-be-detected color printing contact lenses 5 arranged in the detection accommodating grooves 41. The lens of the image acquisition device 6 can be placed downwards and oppositely to the to-be-detected color printing contact lens 5 placed in the detection accommodating groove 41 for imaging shooting. Fig. 7 is an image captured by the optical apparatus 600 according to the embodiment of the present disclosure for a color-printed contact lens 5 to be detected, as shown in fig. 7, a spot (e.g., a white spot in fig. 7) is captured by the image capturing device 6 and correspondingly displayed in the image, and a pattern of a smooth portion of the lens surface of the color-printed contact lens 5 to be detected cannot be developed at the optical image, so that a black shadow (e.g., a black circular shadow in fig. 7) is displayed at a corresponding position in the image.
In some optional embodiments, the optical device 600 further comprises: an image processing apparatus. The image processing apparatus may include various electronic devices having image data processing capability, including but not limited to a smart phone, a tablet computer, a portable computer, a desktop computer, a server, and the like, and is not particularly limited herein.
The image processing device is connected with the image acquisition device 6 in a network, and is configured to acquire the image acquired by the image acquisition device 6 and process the image by adopting a preset processing method to obtain a detection result of the contact lens 5 to be detected and subjected to color printing. Here, the preset processing method may include a visual algorithm, for example, by acquiring an image captured by the image capturing device 6, transmitting the image to the processing unit, and performing discrimination of a size, a shape, a color, and the like according to a pixel distribution and information of brightness, a color, and the like through a digital process. And then the physical defect detection result of the color printing contact lens 5 to be detected is obtained. Here, only the specific application of the visual algorithm is performed, and for the specific implementation of the visual algorithm, reference may be made to the prior art, which is not described herein again.
The foregoing description is only exemplary of the preferred embodiments of the disclosure and is illustrative of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the disclosure herein is not limited to the particular combination of features described above, but also encompasses other embodiments in which any combination of the features described above or their equivalents does not depart from the spirit of the disclosure. For example, the above features and (but not limited to) the features disclosed in this disclosure having similar functions are replaced with each other to form the technical solution.
Claims (10)
1. An optical device, comprising:
a light source;
the shading plate is provided with an annular light-transmitting structure and is arranged above the light source;
the condensing lens is arranged on the light shading plate and corresponds to the position of the annular light-transmitting structure;
the detection carrier is provided with a detection accommodating groove for arranging the color printing contact lens to be detected, at least part of the detection carrier can transmit light, and the detection carrier is correspondingly arranged on the condensing lens;
at least part of light emitted by the light source can be emitted by the annular light-transmitting structure, converged by the condensing lens and emitted, transmitted through the detection container carrier and irradiate the to-be-detected color printing contact lens arranged in the detection container.
2. The apparatus according to claim 1, wherein a main optical axis of the condensing lens is coaxial or approximately coaxial with a center of the annular light-transmitting structure, and the main optical axis of the condensing lens is perpendicular or approximately perpendicular to a plane of the annular light-transmitting structure.
3. The apparatus of claim 1, wherein the light source comprises: the light-emitting unit comprises a light-emitting unit and a scattering plate, wherein the scattering plate is arranged on the light-emitting unit and can scatter light emitted by the light-emitting unit.
4. The apparatus of claim 1, wherein the shutter plate comprises a shutter portion having a circular aperture and a shutter disk having a diameter smaller than the circular aperture, the shutter disk being disposed within and concentric with the circular aperture;
and the annular light-transmitting structure is formed by a gap between the shading wafer and the round hole.
5. The apparatus of claim 4, wherein the shutter plate further comprises a light transmissive retainer portion connecting the light blocking portion and the light blocking wafer and covering the annular light transmissive structure.
6. The apparatus of claim 1, wherein the condenser lens has a predetermined distance from the detection accommodating groove corresponding to a focal point of the detection carrier side.
7. The apparatus of claim 1, wherein the test holding tank contains a soaking solution.
8. The apparatus of claim 1, wherein the light source emits light in a wavelength range that includes at least one of:
monochromatic light, white light or infrared light.
9. The apparatus of any of claims 1 to 8, further comprising:
and the image acquisition device is arranged above the detection carrier and can acquire images of the to-be-detected color printing contact lenses arranged in the detection accommodating grooves of the detection carrier.
10. The apparatus of claim 9, the apparatus further comprising:
and the image processing device is connected with the image acquisition device in a network manner and is configured to acquire the image acquired by the image acquisition device and process the image by adopting a preset processing method to obtain a detection result of the to-be-detected color printing contact lens.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110466406.9A CN113203708A (en) | 2021-04-22 | 2021-04-22 | Optical device |
| TW111115095A TWI812178B (en) | 2021-04-22 | 2022-04-20 | An optical device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110466406.9A CN113203708A (en) | 2021-04-22 | 2021-04-22 | Optical device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113203708A true CN113203708A (en) | 2021-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110466406.9A Pending CN113203708A (en) | 2021-04-22 | 2021-04-22 | Optical device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN113203708A (en) |
| TW (1) | TWI812178B (en) |
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| JPH0961291A (en) * | 1995-08-29 | 1997-03-07 | Asahi Optical Co Ltd | Apparatus for testing optical parts |
| JP2003214826A (en) * | 2002-01-25 | 2003-07-30 | Mitsubishi Electric Corp | Method for measuring shape |
| CN101788271A (en) * | 2010-03-17 | 2010-07-28 | 北京理工大学 | Method and device for measuring thickness of the center of confocal lens |
| JP2011021948A (en) * | 2009-07-14 | 2011-02-03 | Nikon Corp | Particle size measuring instrument |
| US20140210983A1 (en) * | 2011-08-23 | 2014-07-31 | Hitachi High-Technologies Corporation | Optical microscope device and testing apparatus comprising same |
| CN105115989A (en) * | 2015-10-09 | 2015-12-02 | 南京爱丁堡环保科技有限公司 | Automatic defect detecting equipment and detecting method for contact lenses |
| CN106537110A (en) * | 2014-05-15 | 2017-03-22 | 伊麦视觉私人有限公司 | System and method for inspecting opthalmic lenses |
| JP2019109302A (en) * | 2017-12-15 | 2019-07-04 | 三星電子株式会社Ｓａｍｓｕｎｇ Ｅｌｅｃｔｒｏｎｉｃｓ Ｃｏ．，Ｌｔｄ． | Illumination optical system, optical inspection device, and optical microscope |
| WO2021059439A1 (en) * | 2019-09-26 | 2021-04-01 | 株式会社レクザム | Mount table for lens to be checked and lens checker |
-
2021
- 2021-04-22 CN CN202110466406.9A patent/CN113203708A/en active Pending
-
2022
- 2022-04-20 TW TW111115095A patent/TWI812178B/en active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0961291A (en) * | 1995-08-29 | 1997-03-07 | Asahi Optical Co Ltd | Apparatus for testing optical parts |
| JP2003214826A (en) * | 2002-01-25 | 2003-07-30 | Mitsubishi Electric Corp | Method for measuring shape |
| JP2011021948A (en) * | 2009-07-14 | 2011-02-03 | Nikon Corp | Particle size measuring instrument |
| CN101788271A (en) * | 2010-03-17 | 2010-07-28 | 北京理工大学 | Method and device for measuring thickness of the center of confocal lens |
| US20140210983A1 (en) * | 2011-08-23 | 2014-07-31 | Hitachi High-Technologies Corporation | Optical microscope device and testing apparatus comprising same |
| CN106537110A (en) * | 2014-05-15 | 2017-03-22 | 伊麦视觉私人有限公司 | System and method for inspecting opthalmic lenses |
| CN105115989A (en) * | 2015-10-09 | 2015-12-02 | 南京爱丁堡环保科技有限公司 | Automatic defect detecting equipment and detecting method for contact lenses |
| JP2019109302A (en) * | 2017-12-15 | 2019-07-04 | 三星電子株式会社Ｓａｍｓｕｎｇ Ｅｌｅｃｔｒｏｎｉｃｓ Ｃｏ．，Ｌｔｄ． | Illumination optical system, optical inspection device, and optical microscope |
| WO2021059439A1 (en) * | 2019-09-26 | 2021-04-01 | 株式会社レクザム | Mount table for lens to be checked and lens checker |
Also Published As
| Publication number | Publication date |
|---|---|
| TW202234016A (en) | 2022-09-01 |
| TWI812178B (en) | 2023-08-11 |
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Application publication date: 20210803 |