CN216160126U - Illumination system and optical detection device - Google Patents
Illumination system and optical detection device Download PDFInfo
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- CN216160126U CN216160126U CN202122120752.XU CN202122120752U CN216160126U CN 216160126 U CN216160126 U CN 216160126U CN 202122120752 U CN202122120752 U CN 202122120752U CN 216160126 U CN216160126 U CN 216160126U
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- 238000005286 illumination Methods 0.000 title claims abstract description 131
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Abstract
The utility model discloses an illumination system and an optical detection device, which comprise an epi-illumination unit, an oblique-illumination unit and an oblique-illumination adjusting unit; an included angle is formed between the central axis of the epi-illumination unit and the central axis of the oblique-illumination unit; oblique incidence regulating unit, including circumference position control mechanism and incident angle adjustment mechanism, circumference position control mechanism's stiff end with the illumination element coaxial coupling falls to penetrate, circumference position control mechanism's removal end with incident angle adjustment mechanism's stiff end is connected, incident angle adjustment mechanism's removal end with oblique incidence illumination element connects. The oblique illumination unit is simple in structure and low in cost, and the circumferential position of oblique illumination relative to the epi-illumination unit and the angle of the oblique illumination can be adjusted according to product requirements, so that a better image capturing effect is guaranteed.
Description
Technical Field
The utility model discloses an optical detection device, belongs to the technical field of display panels, and particularly discloses an illumination system and an optical detection device.
Background
With the rapid development of display technology, display panels have been widely used in various industries. The quality of the display panel is directly related to the service life of the related product. The display panel detection device is an essential part for ensuring the quality of the display panel, the display panel detection device generally comprises a camera, a lens and a light source, the camera can be adjusted in various directions according to requirements sometimes in the using process, in this time, for better shooting effect, the focus point of the light source is preferably superposed with the shooting point, and the shooting of the camera can be clearer at the moment, Chinese patent application No. CN102679236B discloses an illumination system, which comprises an oblique illumination unit, wherein the oblique illumination unit comprises a plurality of first light-emitting elements, the light beam emitted by the oblique illumination unit forms an oblique illumination area on a detected circuit board, and the illumination system is characterized by further comprising a coaxial epi-illumination unit positioned above the oblique illumination unit, the light beam emitted by the coaxial epi-illumination unit forms an epi-illumination area on the detected circuit board, the oblique-incidence illumination area and the falling-incidence illumination area both cover the detected area of the detected circuit board, the falling-incidence illumination area is quadrilateral, and the coaxial falling-incidence illumination unit comprises a semi-reflecting semi-transparent mirror and a plurality of second light-emitting elements which are positioned opposite to the semi-reflecting semi-transparent mirror; the second light-emitting elements are distributed in a matrix form in a plane vertical to the circuit board to be detected; the light beam emitted by the second light-emitting element is reflected by the semi-reflecting and semi-transparent mirror and then vertically projected onto the detected circuit board, the installation angle of the semi-reflecting and semi-transparent mirror relative to the plane of the detected circuit board is 45 degrees, and the light beams emitted by the first light-emitting element and the second light-emitting element are white light. The utility model adds a coaxial epi-illumination unit on the basis of the traditional oblique-illumination unit, and vertically epi-illumination is carried out from the right above the tested circuit board to realize normalized imaging display and detection, but the defects exist: the oblique illumination unit can only provide constant oblique illumination, and the illumination intensity of the oblique illumination area cannot be adjusted according to the product requirement.
SUMMERY OF THE UTILITY MODEL
Aiming at the technical problems in the prior art, the utility model provides a camera layout structure and a display panel detection device, which are simple in structure and low in cost, and can adjust the circumferential position of oblique illumination relative to an epi-illumination unit and the angle of the oblique illumination according to the needs of products, thereby ensuring better image capturing effect.
The utility model discloses a lighting system, which comprises an epi-illumination unit, an oblique-illumination unit and an oblique-illumination adjusting unit, wherein the epi-illumination unit is arranged on the upper surface of the main body; an included angle is formed between the central axis of the epi-illumination unit and the central axis of the oblique-illumination unit; oblique incidence regulating unit, including circumference position control mechanism and incident angle adjustment mechanism, circumference position control mechanism's stiff end with the illumination element coaxial coupling falls to penetrate, circumference position control mechanism's removal end with incident angle adjustment mechanism's stiff end is connected, incident angle adjustment mechanism's removal end with oblique incidence illumination element connects.
In a preferred embodiment of the present invention, the circumferential position adjusting mechanism includes a mounting ring, and the mounting ring is provided with a ring groove for connecting the incident angle adjusting mechanism.
In a preferred embodiment of the utility model, the ring groove is coaxial with the mounting ring.
In a preferred embodiment of the present invention, the incident angle adjusting mechanism includes an adjusting plate connected to the circumferential position adjusting mechanism, the adjusting plate is provided with an arc-shaped sliding groove, and the oblique illumination unit is slidably connected to the arc-shaped sliding groove in a lockable manner.
In a preferred embodiment of the present invention, a center of the arc chute is located on a central axis of the epi-illumination unit.
In a preferred embodiment of the present invention, the adjusting plate includes a slider portion for slidably connecting the mounting ring and a web portion provided with an arc-shaped sliding groove.
The utility model also discloses an optical detection device which comprises a detection camera and an illumination system, wherein the detection camera and the epi-illumination unit of the illumination system are coaxially arranged.
In a preferred embodiment of the present invention, a lens is connected to the detection camera, a epi-illumination unit and an oblique illumination unit are coaxially arranged and connected to the lens, and an oblique illumination unit is connected to the oblique illumination unit.
In a preferred embodiment of the present invention, a displacement unit for adjusting the spatial position of the detection camera is further included.
In a preferred embodiment of the present invention, the displacement unit comprises an upper module and a lower module for adjusting the height of the detection camera, and an adjusting seat for realizing rotation, pitch adjustment and autorotation of the detection camera.
In a preferred embodiment of the present invention, the number of the oblique illumination units is one or more.
In a preferred embodiment of the present invention, the epi-illumination unit includes a first light emitting element having a central axis collinear with a central axis of the detection camera; the oblique illumination unit comprises second light-emitting elements, and the central axis of each second light-emitting element and the central axis of the detection camera form an inclination angle.
The utility model has the beneficial effects that: the utility model has simple structure, low cost and small installation space, and can be applied to various technical fields needing illumination and lighting; the oblique illumination adjusting unit is used for adjusting the included angle between the central axis of the oblique illumination unit and adjusting the circumferential position of the central axis of the oblique illumination unit relative to the central axis of the oblique illumination unit, so that the illumination system can reasonably increase or decrease the oblique illumination unit and adjust the axial position and the inclination angle of the oblique illumination unit according to the requirement of detecting the display panel, the adjustment and adaptation of the brightness of an oblique illumination area are realized, and a better image capturing effect is ensured;
furthermore, the central axis of the first light-emitting element is perpendicular to the display panel to be detected, and the central axis of the second light-emitting element forms an inclination angle with the display panel to be detected, so that the space occupied by the illumination system can be reduced, and the structure of the display panel is more compact;
furthermore, the oblique incidence adjusting unit adopts a split structure of the mounting ring and the adjusting plate, so that the number of the adjusting plates can be increased according to detection requirements; under the condition that the focus points of the light sources are not changed, the distance between the light sources can be changed, and the light sources can be adjusted at different angles;
furthermore, the circle center of the arc-shaped sliding chute is ensured to be positioned on the central axis of the epi-illumination unit, so that the epi-illumination area and the oblique-illumination area are ensured to cover the detected area on the display panel to be detected, and the inclination angle of the oblique-illumination unit is convenient to adjust;
furthermore, the adjusting plate adopts the structure of the sliding block part and the connecting plate part, so that the adjusting plate is convenient to process and assemble;
furthermore, the utility model discloses an optical detection device, which can adapt to the detection of display panels of various models by adopting an illumination system, and reasonably adjust the illumination intensity of a detected area on the display panel to be detected;
furthermore, the utility model realizes the position adjustment of the camera and the illumination system by adding the displacement unit, and increases the compatibility of the optical detection device.
Drawings
FIG. 1 is a first schematic view of an optical inspection apparatus of the present invention;
FIG. 2 is a second schematic view of an optical inspection apparatus of the present invention;
FIG. 3 is a third schematic view of an optical inspection device of the present invention;
in the figure: 1-an epi-illumination unit; 2-a diagonal lighting unit; 3-a display panel to be detected; 4-a skew-firing adjustment unit; 5-detecting the camera; 6-upper and lower modules; 7-an adjusting seat; 8-lens; 41-a mounting ring; 42-an adjusting plate; 43-arc chute; 421-a slider part; 422-connecting plate portion.
Detailed Description
The utility model will now be described in further detail, including the preferred embodiments, with reference to the accompanying drawings and by way of illustration of some alternative embodiments of the utility model. It is to be understood that the described embodiments are merely a few embodiments of the utility model, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
Further, in the present application, relational terms such as "first" and "second", and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The utility model discloses an illumination system, which comprises an epi-illumination unit 1, a light source and a light source, wherein the epi-illumination unit 1 can form an epi-illumination area on a piece to be detected 3; a diagonal illumination unit 2 capable of forming a diagonal illumination region on the object 3 to be inspected; the epi-illumination unit 1 and the oblique-illumination unit 2 are coaxially arranged, and an included angle is formed between the central axis of the epi-illumination unit 1 and the central axis of the oblique-illumination unit 2; the falling illumination area and the oblique illumination area cover the detected area on the piece to be detected 3; oblique incidence adjusting unit 4, can adjust the angle of contained angle between the axis of the illumination element 1 that falls and the axis of oblique incidence illumination element 2, can adjust the circumference position of the axis of oblique incidence illumination element 2 for the axis of the illumination element 1 that falls, oblique incidence adjusting unit 4 includes circumference position control mechanism and incident angle adjustment mechanism, circumference position control mechanism's stiff end and the illumination element 1 coaxial coupling that falls, circumference position control mechanism's removal end is connected with incident angle adjustment mechanism's stiff end, incident angle adjustment mechanism's removal end is connected with oblique incidence illumination element 2.
Preferably, the epi-illumination unit 1 includes a first light emitting element having a central axis perpendicular to the object 3 to be detected.
Preferably, the oblique illumination unit 2 comprises a second light-emitting element, the central axis of which forms an oblique angle with the object 3 to be detected.
Preferably, the circumferential position adjusting mechanism comprises a mounting ring 41 coaxially arranged with the central axis of the downlight illumination unit 1, the mounting ring 41 is provided with ring grooves rotationally and symmetrically arranged along the circumferential direction thereof, the rotational central axis of the ring grooves coincides with the central axis of the oblique light adjusting unit 4, the sliding grooves of the mounting ring 41 are detachably connected with the incident angle adjusting mechanism in a sliding manner,
preferably, the incident angle adjusting mechanism includes an adjusting plate 42, the adjusting plate 42 is provided with an arc-shaped sliding groove 43, and the oblique illumination unit 2 is slidably connected to the arc-shaped sliding groove 43 in a lockable manner.
Preferably, the center of the arc chute 43 is located on the central axis of the epi-illumination unit 1.
Preferably, the adjustment plate 42 includes a slider portion 421 for slidably connecting the mounting ring 41 and a connection plate portion 422 provided with an arc-shaped sliding groove 43.
Preferably, the object 3 to be detected may be a display panel or other components.
The utility model also discloses an optical detection device which comprises a detection camera 5 and an illumination system, wherein the detection camera 5 and the epi-illumination unit 1 of the illumination system are coaxially arranged.
Preferably, a lens 8 is connected to the detection camera 5, the epi-illumination unit 1 and the oblique illumination unit 4 which are coaxially arranged are connected to the lens 8, and the oblique illumination unit 2 is connected to the oblique illumination unit 4.
Preferably, a displacement unit for adjusting the spatial position of the detection camera 5 is further included.
Preferably, the displacement unit comprises an upper and lower module 6 for adjusting the height of the detection camera 5, and an adjusting seat 7 for realizing rotation, pitch adjustment and autorotation of the detection camera 5, wherein the upper and lower module 6 may adopt a linear sliding table module, and the adjusting seat 7 may adopt a three-degree-of-freedom sliding table, and the specific structure may be referred to as a fine adjustment device in CN208507166U or the structure disclosed in CN 110319311B.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the utility model, and any modification, combination, replacement, or improvement made within the spirit and principle of the present invention is included in the scope of the present invention.
Claims (10)
1. An illumination system, characterized by:
the system comprises an epi-illumination unit, an oblique illumination unit and an oblique adjustment unit;
an included angle is formed between the central axis of the epi-illumination unit and the central axis of the oblique-illumination unit;
oblique incidence regulating unit, including circumference position control mechanism and incident angle adjustment mechanism, circumference position control mechanism's stiff end with the illumination element coaxial coupling falls to penetrate, circumference position control mechanism's removal end with incident angle adjustment mechanism's stiff end is connected, incident angle adjustment mechanism's removal end with oblique incidence illumination element connects.
2. The illumination system of claim 1, wherein: the circumferential position adjusting mechanism comprises a mounting ring, and an annular groove used for being connected with the incident angle adjusting mechanism is formed in the mounting ring.
3. The illumination system of claim 1, wherein: incident angle adjustment mechanism is including being used for connecting circumference position control mechanism's regulating plate, be provided with the arc spout on the regulating plate, but locking ground sliding connection has on the arc spout the oblique illumination element.
4. The illumination system of claim 3, wherein: the center of the arc-shaped sliding groove is located on the central axis of the epi-illumination unit.
5. The illumination system of claim 3, wherein: the regulating plate comprises a sliding block part for slidably connecting the mounting ring and a connecting plate part provided with an arc-shaped sliding groove.
6. The illumination system of claim 1, wherein: the number of the oblique illumination units is one or more.
7. An optical inspection apparatus, comprising: comprising a detection camera and an illumination system as claimed in any of the claims 1-6, said detection camera being arranged coaxially with an epi-illumination unit of said illumination system.
8. The optical inspection device of claim 7, wherein: the detection camera is connected with a lens, the lens is connected with a falling illumination unit and an oblique illumination adjusting unit which are coaxially arranged, and the oblique illumination adjusting unit is connected with an oblique illumination unit.
9. The optical inspection device of claim 7, wherein: the displacement unit is used for adjusting the space position of the detection camera; the displacement unit comprises an upper module, a lower module and an adjusting seat, wherein the upper module and the lower module are used for adjusting the height of the detection camera, and the adjusting seat is used for realizing rotation, pitching adjustment and autorotation of the detection camera.
10. The optical inspection device of claim 7, wherein: the epi-illumination unit comprises a first light-emitting element, and the central axis of the first light-emitting element is collinear with the central axis of the detection camera; the oblique illumination unit comprises second light-emitting elements, and the central axis of each second light-emitting element and the central axis of the detection camera form an inclination angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122120752.XU CN216160126U (en) | 2021-09-03 | 2021-09-03 | Illumination system and optical detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122120752.XU CN216160126U (en) | 2021-09-03 | 2021-09-03 | Illumination system and optical detection device |
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| CN216160126U true CN216160126U (en) | 2022-04-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120488182A (en) * | 2025-07-02 | 2025-08-15 | 安阳科行工程质量检测咨询有限公司 | Illumination system and automatic optical detection device comprising same |
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- 2021-09-03 CN CN202122120752.XU patent/CN216160126U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120488182A (en) * | 2025-07-02 | 2025-08-15 | 安阳科行工程质量检测咨询有限公司 | Illumination system and automatic optical detection device comprising same |
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