CN218412317U - Optical glass surface scratch detection device - Google Patents
Optical glass surface scratch detection device Download PDFInfo
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- CN218412317U CN218412317U CN202222369146.6U CN202222369146U CN218412317U CN 218412317 U CN218412317 U CN 218412317U CN 202222369146 U CN202222369146 U CN 202222369146U CN 218412317 U CN218412317 U CN 218412317U
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Abstract
The utility model relates to an optical glass surface fish tail detection device belongs to optical detection's technical field, include: the device comprises an ultraviolet light point light source for generating ultraviolet light for imaging detection, a light splitting component for reflecting the ultraviolet light to the surface of an object to be detected, and an imaging component for receiving the reflected light of the object to be detected and imaging, wherein the wavelength of the ultraviolet light is 360-370nm. The utility model discloses a setting up of pointolite makes more parallel light shine on waiting to detect the object, can be so that more light reflection to camera lens, can improve the glass surface and scratch the grey scale difference of department and intact surface, ultraviolet light shines simultaneously and can reduce the lens structure that lights optical glass behind one's back, reduces the interference of irrelevant structure to promote and detect the precision.
Description
Technical Field
The utility model relates to an optical detection technical field, specifically speaking relates to an optical glass surface fish tail detection device.
Background
The integrated camera usually encapsulates the lens group inside, and light enters the lens group through the optical glass at the front end for imaging, so the quality of the optical glass at the front end is the key of the quality of the integrated camera. Wherein in order to improve the quality of the optical glass, the precision of the scratch detection on the surface of the optical glass must be improved.
For the detection of optical glass, the early detection mode is generally to place the glass in a bright environment and perform screening and examination by means of manual visual inspection, but with the increasingly high detection precision of the optical glass, the visual detection mode cannot meet the requirement. Therefore, an optical imaging detection mode is created, and the position, the number and the size of the scratch are accurately judged by imaging the scratch on the glass surface.
In optical imaging detection, an annular light source is usually arranged on the periphery of a glass to be detected, the annular light source illuminates the glass, a lens and an imaging device are arranged on an optical reflection path on the surface of the glass, light reflected by the surface of the glass is absorbed for imaging, and then scratch defects are detected through the gray level difference between the scratch part and the non-damage part of the reflected light. However, as the hardness of the optical glass is improved, the scratch on the surface of the optical glass is generally shallow, the scratch is easily illuminated by a ring light source, so that the scratch is difficult to be displayed in imaging, and the optical glass has strong penetrability, and a lens structure at the back of the optical glass is easily illuminated under the irradiation of a conventional ring light source, so that the detection of the scratch is interfered.
SUMMERY OF THE UTILITY MODEL
1. Problems to be solved
To prior art, under conventional annular light source shines, the shallow mar that shows in optical glass surface is difficult to the problem that detects, the utility model provides an optical glass surface fish tail detection device improves the gray scale difference of glass surface scratch department and intact surface, and then promotes and detects the precision.
2. Technical scheme
In order to solve the above problems, the utility model adopts the following technical proposal.
An optical glass surface scratch detection device for imaging detection of the surface of an object to be detected, comprising:
the point light source is used for generating light rays for imaging detection;
the light splitting component is used for reflecting the light of the point light source to enable the light to irradiate the surface of the object to be detected in parallel;
and the imaging assembly is used for receiving the light reflected by the surface of the object to be detected, imaging and forming plane imaging of the surface of the object to be detected.
Preferably, the point light source is an ultraviolet light source.
Preferably, the point light source is used for emitting ultraviolet light with the wavelength of 360-370nm.
Preferably, the light splitting assembly comprises a light splitter arranged between the imaging assembly and the object to be detected, so that the reflected light rays irradiate the surface of the object to be detected in parallel.
Preferably, a lens is disposed between the beam splitting assembly and the object to be detected, and is configured to receive the light reflected by the beam splitting assembly, reflect the light to the surface of the object to be detected, receive the light reflected by the surface of the object to be detected, and refract the light to the imaging assembly in parallel.
Preferably, the imaging component is a camera.
Preferably, a hollow coaxial lens is arranged at a lens mounting position of the imaging assembly, the spectroscope is accommodated in the coaxial lens, and a lens is arranged at a light inlet of the coaxial lens.
Preferably, the optical fiber detection device further comprises an annular light source arranged between the light splitting assembly and the object to be detected, light of the annular light source irradiates the surface of the object to be detected, and a circular light spot is formed on the upper surface of the object to be detected.
Preferably, annular light source includes the annular base that is close to the object setting of waiting to detect, and annular base inside wall electricity is connected with the lamp pearl, and its light inwards shines at the upper surface and the side surface of waiting to detect the object with predetermined angle.
Preferably, the distance h between the annular base and the object to be detected in the vertical direction is 10mm.
3. Advantageous effects
Compared with the prior art, the beneficial effects of the utility model are that:
(1) The utility model provides an optical glass surface fish tail detection device makes parallel light shine on waiting to detect the object through the setting of pointolite, can be so that more light reflection to camera lens, also can improve the grey scale difference of glass surface scratch department and intact surface simultaneously, and then promote the detection precision.
(2) The utility model discloses a pointolite adopts ultraviolet light, can reduce the light that pierces through optical glass, reduces to be shown the structure in the lens in final formation of image to reduce the interference that the fish tail detected, adopt wavelength to be 360-370 nm's ultraviolet light can reduce the appearance of structure in the lens in final formation of image, thereby avoid its detection that disturbs glass surface mar to a bigger degree, improve and detect the precision.
(3) The utility model discloses a setting up of spectroscope and lens both can guarantee the light parallel irradiation of pointolite waiting to detect the object on, can guarantee again to detect the reflected light reflection on object surface to the formation of image subassembly in, improve and detect the precision.
(4) The utility model discloses except the pointolite, the annular light source has still been set up, can illuminate the mar through the light that the slope shines, thereby treat the surface that detects the object and carry out secondary imaging, compare the pointolite and become the image, confirm the quantity of mar on the glass, position and size, thereby promote the precision that detects, wherein annular light source is close to and waits to detect the object setting, can illuminate it global when shining the object upper surface, will treat the light concentration refraction to the imaging components of object surface reflection through lens simultaneously, the complexity of device structure has been simplified.
Drawings
Fig. 1 is a schematic view (a) of a light path of the optical glass surface scratch detection device provided by the present invention;
fig. 2 is a schematic view (ii) of a light path of the optical glass surface scratch detection device provided by the present invention;
fig. 3 is a front view of the optical glass surface scratch detection device provided by the present invention;
fig. 4 is a perspective view of the optical glass surface scratch detection device provided by the present invention.
In the figure:
1. a point light source;
2. a light splitting component; 201. a beam splitter;
3. an imaging assembly;
4. a lens;
5. a coaxial lens;
6. an annular light source; 601. an annular base; 602. a lamp bead;
7. an object to be detected.
Detailed Description
In order to make the utility model realize that the technical means, the creation characteristics, the achievement purpose and the efficacy are easy to be understood, the utility model is further explained by combining the embodiment.
Along with the improvement of the hardness of the optical glass, the surface scratches of the optical glass are generally shallow, when a high-angle annular light source irradiates an object to be detected, the scratches are easily illuminated, so that the scratches are difficult to show in imaging, the optical glass has high penetrability, and a lens structure behind the glass is easily illuminated under the irradiation of a conventional annular light source, so that the detection of the scratches is interfered. For this reason, the present embodiment improves the detection apparatus as follows:
as shown in fig. 1, an optical glass surface detection scratch device for performing imaging detection on the surface of an object to be detected 7 mainly comprises a point light source 1, an annular light source 6, a light splitting assembly 2 and an imaging assembly 3, and forms a detection device capable of performing secondary imaging on the object to be detected 7.
As shown in fig. 1 to 3, specifically, an imaging component 3 is disposed at one end of the hollow coaxial lens 5, and is configured to receive light reflected by the surface of the object 7 to be detected, and perform imaging to form a planar image of the surface of the object 7 to be detected. The imaging assembly 3 is typically a camera and a lens is provided where the camera receives light to enhance light collection for better imaging. An object 7 to be detected is placed at the lower end of the coaxial lens 5, and the object 7 to be detected is mainly an optical glass element. Specifically, regarding primary imaging, a point light source 1 is mainly arranged on one side of a coaxial lens 5, and a light splitting component 2 is arranged in the hollow coaxial lens 5 corresponding to the point light source 1 and used for reflecting light rays of the point light source 1 to enable the light rays to irradiate the surface of an object 7 to be detected in parallel. Regarding secondary imaging, mainly set up annular light source 6 between coaxial camera lens 5 and waiting to detect object 7, its light shines and to detect object 7 surface to form circular even facula at the upper surface of waiting to detect object 7, will wait to detect the whole surface parcel of object wherein, wait to detect object 7 surface with light reflection to imaging components 3, can carry out secondary imaging, compare twice formation of image, can avoid detecting the mistake, improve and detect the precision.
Wherein, the setting of pointolite 1 makes parallel light shine on waiting to detect object 7, can make more light reflection to camera lens, also can improve the grey scale difference of glass surface scratch department and sound surface simultaneously, and then promotes and detects the precision. The point light source 1 can adopt an ultraviolet light source, and the characteristic of ultraviolet light is utilized to reduce light penetrating through optical glass and display of structures in the lens in final imaging, so that the interference of the structure on scratch detection is reduced.
In a possible embodiment, the wavelength of the ultraviolet light emitted by the point light source 1 is 360-370nm, which can reduce the structure of the lens 4 at the back of the illuminated optical glass to the maximum extent and improve the detection precision.
As shown in fig. 4, the annular light source 6 mainly includes an annular base 601 disposed close to the object 7 to be detected, and a lamp bead 602 is electrically connected to an inner side wall of the annular base 601, and light of the lamp bead irradiates the upper surface and the side surface of the object 7 to be detected at a predetermined angle. When carrying out the secondary imaging, can illuminate the mar through the light that the slope shines to treat and detect the surface of object 7 and carry out the secondary imaging, compare pointolite 1 and become the image, confirm quantity, position and the size of mar on the glass, thereby promote the precision that detects, wherein annular light source 6 is close to and waits to detect object 7 and sets up, can illuminate its week side when waiting to detect object 7 upper surface.
In a possible embodiment, the distance h between the annular base 601 and the object 7 to be detected is 10mm, so that light can be better irradiated on the upper surface and the peripheral side surface of the object 7 to be detected.
In addition, the light splitting component 2 mainly comprises a light splitter 201 arranged between the imaging component 3 and the object 7 to be detected, and the light splitter 201 is arranged in the hollow coaxial lens 5, so that the reflected light can be irradiated on the surface of the object 7 to be detected in parallel.
In the using process, when the light emitted by the point light source 1 is reflected to the upper surface of the object 7 to be detected through the light splitting component 2, the parallelism of the light cannot be ensured, so that the lens 4 arranged at the light inlet of the coaxial lens 5 can receive the light reflected by the light splitting mirror 201 and refract the light to the surface of the object 7 to be detected; similarly, because a part of the light of the annular light source 6 irradiates on the peripheral side surface of the object 7 to be detected, the light irradiating on the upper surface of the object 7 to be detected is insufficient, which is not favorable for imaging, and at this time, the lens 4 can also be used for receiving the light reflected by the surface of the object 7 to be detected, and refracting the light to the imaging component 3 in parallel, thereby performing better imaging.
In the description of this patent, it is to be understood that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "front," "back," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, but are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of this patent.
In this patent, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and encompass, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, but rather that the principles of the invention are described in the above embodiments and the description, and that various changes and modifications may be made without departing from the spirit and scope of the invention, and these changes and modifications are intended to be included within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. An optical glass surface scratch detection device for imaging detection of the surface of an object (7) to be detected, characterized by comprising:
a point light source (1) for generating light for imaging detection;
the light splitting component (2) is used for reflecting the light of the point light source (1) and enabling the light to irradiate the surface of the object to be detected (7) in parallel;
and the imaging component (3) is used for receiving the light reflected by the surface of the object (7) to be detected, imaging and forming plane imaging of the surface of the object (7) to be detected.
2. The optical glass surface scratch detection device of claim 1, wherein: the point light source (1) is an ultraviolet light source.
3. The optical glass surface scratch detection device of claim 2, wherein: the point light source (1) is used for emitting ultraviolet rays with the wavelength of 360-370nm.
4. The optical glass surface scratch detection device of claim 1, wherein: the light splitting component (2) comprises a light splitting mirror (201) arranged between the imaging component (3) and the object to be detected (7), so that the reflected light rays irradiate the surface of the object to be detected (7) in parallel.
5. The device for detecting scratches on the surface of optical glass as claimed in claim 4, wherein: and a lens (4) is arranged between the light splitting component (2) and the object (7) to be detected and is used for receiving the light reflected by the light splitting mirror (201), reflecting the light to the surface of the object (7) to be detected, receiving the light reflected by the surface of the object (7) to be detected and refracting the light to the imaging component (3) in parallel.
6. The optical glass surface scratch detection device of claim 5, wherein: the imaging component (3) is a camera.
7. The device for detecting scratches on the surface of optical glass as claimed in claim 6, wherein: the lens installation department of formation of image subassembly (3) is provided with coaxial camera lens (5), spectroscope (201) are accommodated in coaxial camera lens (5), and the light inlet department of coaxial camera lens (5) sets up lens (4).
8. An optical glass surface scratch detection device according to any one of claims 1 to 7, characterized in that: the device is characterized by further comprising an annular light source (6) arranged between the light splitting component (2) and the object (7) to be detected, light of the annular light source (6) irradiates the surface of the object (7) to be detected, and a circular light spot is formed on the upper surface of the object (7) to be detected.
9. The optical glass surface scratch detection device of claim 8, wherein: the annular light source (6) comprises an annular base (601) which is close to the object (7) to be detected, the inner side wall of the annular base (601) is electrically connected with a lamp bead (602), and light rays of the lamp bead inwards irradiate the upper surface and the side surface of the object (7) to be detected at a preset angle.
10. The optical glass surface scratch detection device of claim 9, wherein: the distance h between the annular base (601) and the object (7) to be detected in the vertical direction is 10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222369146.6U CN218412317U (en) | 2022-09-06 | 2022-09-06 | Optical glass surface scratch detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222369146.6U CN218412317U (en) | 2022-09-06 | 2022-09-06 | Optical glass surface scratch detection device |
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| Publication Number | Publication Date |
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| CN218412317U true CN218412317U (en) | 2023-01-31 |
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| CN202222369146.6U Active CN218412317U (en) | 2022-09-06 | 2022-09-06 | Optical glass surface scratch detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117214187A (en) * | 2023-11-08 | 2023-12-12 | 宁波旗滨光伏科技有限公司 | Detection method and detection device |
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2022
- 2022-09-06 CN CN202222369146.6U patent/CN218412317U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117214187A (en) * | 2023-11-08 | 2023-12-12 | 宁波旗滨光伏科技有限公司 | Detection method and detection device |
| CN117214187B (en) * | 2023-11-08 | 2024-02-02 | 宁波旗滨光伏科技有限公司 | Detection method and detection device |
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