CN210891131U

CN210891131U - Light source device for illuminating object to be detected

Info

Publication number: CN210891131U
Application number: CN201921016482.4U
Authority: CN
Inventors: 王其福; 沈栋慧; 赵立勇; 刘运飞; 葛大伟
Original assignee: Suzhou Dcck Technology Co ltd
Current assignee: Suzhou Dcck Technology Co ltd
Priority date: 2019-07-02
Filing date: 2019-07-02
Publication date: 2020-06-30
Anticipated expiration: 2029-07-02

Abstract

The utility model belongs to the technical field of visual detection, concretely relates to a light source device for treating the illumination of waiting to detect thing. The utility model provides a light source device, including light emitting component and light reflecting component. The reflecting element extends from the light source device to the position of the object to be detected, and the surface of one side facing the object to be detected is a reflecting surface from the light of the light emitting element. There is the object of waiting to detect that is in sheltered from position or narrow and small space to the product, and this light source device's reflection of light component sets up according to waiting to detect regional structure space in order can stretching into to detect the region and towards waiting to detect the object, and reflection of light component is as the plane of reflection from light-emitting component light to will wait to detect the object and illuminate, thereby realize and wait to detect other faces of item and show the same effect, effectively solved current AOI light source because of being difficult to erect in product sheltered from position or narrow and small space and can't carry out the difficult problem that optical inspection.

Description

Light source device for illuminating object to be detected

Technical Field

The utility model belongs to the technical field of visual detection, concretely relates to a light source device for treating the illumination of waiting to detect thing.

Background

Automatic Optical Inspection (AOI) is a technology for performing rapid and nondestructive Inspection on common defects encountered in a production process of a wafer, a chip or other inspected objects based on an Optical principle, and the technology is widely applied to the fields of PCBs, LEDs, TFTs, integrated circuits, solar panels and the like. The AOI works by illuminating an inspected object with a specific light source, acquiring image information of the inspected object through an optical imaging system, comparing the acquired image information with reference image information through a computer to identify surface defects of the inspected object, and displaying/identifying the defects through a display or an automatic mark.

The light source is an important component of automatic detection equipment, and the existing domestic AOI light source is designed in a full circle shape. However, in practical application, the design scheme has some defects, for example, when detecting the saturation of the welding point at the welding position of the PCB and the PIN of the automobile motor, since a molded part (such as a plastic part) exists near the welding point of the product, the molded part can shield one side surface of the welding point, so that the side surface cannot be detected for the saturation; in addition, the formed parts are very close to the welding spot, and the interference of other parts is added, so that the space is extremely narrow and is only about 5mm, and a complete circular light source cannot be erected. Therefore, it is a difficult problem to optically detect the object to be detected in the shielded part or the narrow space.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the whole circular structure of current AOI light source and being not suitable for to being in the product and being sheltered from the defect that position or narrow and small space carried out optical inspection by the measuring thing to propose one kind and be suitable for the narrow and small space of product to detect and can carry out the light source device that shines comprehensively to being detected the thing.

In order to solve the technical problem, the utility model discloses a technical scheme is:

the utility model provides a light source device for treating that detects thing illumination, include:

a light emitting element;

and the reflecting element extends from the light source device to the position of the object to be detected, and the surface of one side facing the object to be detected is a reflecting surface from the light of the light-emitting element.

Preferably, in the light source device with the structure, the light reflecting element includes two reflecting surfaces, and the two reflecting surfaces are arranged oppositely to reflect the light rays from the light emitting element at different positions.

Preferably, in the light source device with the structure, the reflecting surface is rectangular, and the length and the width of the reflecting surface enable the light of the light-emitting element to be reflected and then partially irradiate the object to be detected.

Further preferably, the light source device of the structure comprises a light emitting component and a light reflecting component which are detachably mounted, wherein the light emitting component comprises at least one light emitting element, and the light reflecting component comprises the light reflecting element; the light reflecting assembly further comprises a first fixing member for fixing the light reflecting element on the light emitting assembly.

Further preferably, in the light source device of this structure, the first fixing member is a rigid rectangular plate-shaped structure, and the light reflecting element is a flexible light reflecting film.

Further preferably, in the light source device with the structure, one end of the first fixing member is fixed to the light emitting assembly, and the flexible reflective films are disposed on two surfaces of the first fixing member.

Further preferably, in the light source apparatus with the structure, the light reflecting component further includes a second fixing member with a rigid plate-shaped structure, the first fixing member is fixed on the second fixing member, and two ends of the second fixing member are fixed on the light emitting component.

Further preferably, in the light source device of this configuration, the light emitting element has a C-shaped cross section.

Further preferably, in the light source device with the structure, the light emitting assembly includes three light emitting elements stacked to define an inner cavity, and an inner diameter of the inner cavity is gradually reduced from the bottom layer toward the top layer.

Further preferably, in the light source device with the structure, each light emitting element is a semicircular ring and includes an arc segment and two free ends, the second fixing member is fixed to the end face of the free end of the light emitting element on the top layer, and the first fixing member is arranged along the axis direction where the circle centers of all the light emitting elements are located and faces the bottom layer of the light emitting assembly.

The utility model discloses technical scheme has following advantage:

1. the utility model provides a light source device for waiting to detect thing illumination, including light emitting component and light reflecting component. The reflecting element extends from the light source device to the position of the object to be detected, and the surface of one side facing the object to be detected is a reflecting surface from the light of the light emitting element.

There is the object to be detected that is in sheltered from position or narrow and small space to the product, and this light source device's reflection of light component sets up according to the structure space that detects the region and in order can stretch into and detect the region and towards detecting the object to be detected, and reflection of light component is as the plane of reflection that derives from light emitting component light to will detect the object and illuminate, thereby realize and detect other faces of object and show the same effect, effectively solved current AOI light source because of being difficult to erect and can't carry out the optical inspection in the product is sheltered from position or narrow and small space difficult problem.

2. The utility model provides a light source device for waiting to detect thing illumination, the stiff end of first mounting is provided with at least one long waist hole, and first mounting is fixed on light-emitting component through wearing to establish the downthehole first fastener of long waist in order to fix reflection of light component. The relative position of the first fixing piece and the light-emitting component can be adjusted through the design of the long waist hole, so that the position of the light-reflecting element relative to the light-emitting component can be adjusted, and the light source device with the structure is suitable for optical detection of regions to be detected with different structures or different spaces.

3. The utility model provides a light source device for waiting to detect thing illumination is provided with at least one lightening hole on the first mounting, can alleviate the weight of first mounting to protect this light source device, and reflecting element covers all this lightening holes, guaranteed that reflecting element can not reduce because of the setting in lightening hole as light plane of reflection area.

Moreover, the light reflecting element protrudes out of the suspended end of the first fixing piece, so that the damage of the first fixing piece to a product to be detected in the optical detection process is avoided.

4. The utility model provides a light source device for waiting to detect thing illumination, light-emitting component include that at least one cross section is the light-emitting component of C type, and light reflecting component sets up the open region at the light-emitting component of C type. The opening structure of the C-shaped light-emitting element of the light source device with the structure provides a larger space for erecting a product to be detected, and the light-reflecting component can extend into an area to be detected.

5. The utility model provides a light source device for lighting the object to be detected, the C-shaped luminous element is provided with at least two adjusting holes, which can realize the adjustment of the fixed position of the reflecting element in the opening area of the C-shaped luminous element; the adjusting hole is matched with the long waist hole, so that the position of the reflecting element relative to the light-emitting component can be adjusted, the incident angle of the light-emitting component to the reflecting element and the emergent angle of light rays of the light-emitting component are improved, and the illuminating effect of an object to be detected is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a front view of a light source device provided in embodiment 1 of the present invention;

fig. 2 is a right side view of a light source device provided in embodiment 1 of the present invention;

fig. 3 is a top view of a light source device provided in embodiment 1 of the present invention;

fig. 4 is a schematic structural view of a first fixing member and a light reflecting member provided in embodiment 1 of the present invention;

description of reference numerals:

1-a light emitting assembly; 11-a first light emitting element; 111-a conditioning aperture; 12-a second light emitting element; 13-a third light emitting element; 14-open area;

2-a light reflecting component; 21-a reflective element; 22-a first fixing member; 221-lightening holes; 222-long waist hole; 23-second fixing element.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. 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 invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" 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; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Example 1

The present embodiment provides a light source device for illuminating an object to be detected, as shown in fig. 1, comprising a light emitting assembly 1 and a light reflecting assembly 2 which are detachably mounted.

The light emitting assembly 1 comprises three light emitting elements: a first light emitting element 11, a second light emitting element 12 and a third light emitting element 13. As shown in fig. 2 and 3, the cross sections of the first light emitting element 11, the second light emitting element 12 and the third light emitting element 13 are all semi-circular ring type, each light emitting element has an arc section and two free ends, the arc sections of the three light emitting elements are sequentially stacked, and the end faces of the free ends of the three light emitting elements are flush, so that the centers of the three light emitting elements are located on the same central axis; the first light emitting element 11 serves as a top layer of the light emitting assembly 1, and the third light emitting element 13 serves as a bottom layer of the light emitting assembly 1. Meanwhile, the first light emitting element 11, the second light emitting element 12 and the third light emitting element 13 enclose a cover-type inner cavity, and the inner diameter of the inner cavity is gradually reduced from the third light emitting element 13 positioned at the bottom layer toward the first light emitting element 11 positioned at the top layer to form a continuous light emitting curved surface. The free end outer spaces of the three light emitting elements form an open area 14 for mounting the reflector assembly 2.

As shown in fig. 2, three pairs of adjusting holes 111 are symmetrically disposed on two free end surfaces of the first light emitting element 11, and the arrangement direction of the three adjusting holes 111 on each free end surface is parallel to the central axis direction where the centers of the three light emitting elements are located. Different positions of the adjusting holes 111 are provided for adjusting the relative positions of the light reflecting member 2 and the light emitting member 1.

As shown in FIGS. 2 and 3, the reflector assembly 2 includes a reflector element 21, a first mount 22, a first fastener, a second mount 23, and a second fastener. The reflecting component 2 is arranged in the opening region 14 of the light-emitting component 1 so as to extend into the region to be detected of the product, and one side surface facing the object to be detected in the region to be detected is used as a reflecting surface from the light of the light-emitting component 1.

As shown in fig. 4, the reflective element 21 is made of PVC reflective film.

The first fixing member 22 is a ceramic plate with a rectangular plate-shaped structure, wherein one end is used as a fixed end and fixed on the light emitting component 1 through the second fixing member 23, and the other end is used as a suspended end to extend into a to-be-detected area of a product; the reflective element 21 is attached to a side surface of the first fixing member 22 facing the inner cavity of the light emitting assembly 1 to form a reflecting surface, which is rectangular, and has a length and a width such that the light of the light emitting element is reflected and then partially irradiates the object to be detected.

In order to reduce the probability of damage to the fixed end of the first fixing member 11 during optical inspection and to protect the light emitting module 1, a lightening hole 221 is formed in the central region of the first fixing member 22. The reflector element 21 completely covers the lightening holes 221 to ensure that the area of the reflector element 21 as a reflecting surface is not reduced by the provision of the lightening holes 221. Because the PVC reflective film is a flexible film and the ceramic sheet is made of rigid material, the reflective element 21 protrudes out of the suspended end of the first fixing member 22 by 2mm, so that the first fixing member 22 is prevented from damaging an object to be detected in the detection process.

The fixed end of the first fixing member 22 is provided with two long waist holes 222, and the extending direction of the long waist holes 222 is parallel to the length direction of the first fixing member 22; the first fixing member 22 is fixed on the second fixing member 23 by the first fastening member 23 inserted into the long waist hole 222, and the relative position of the first fixing member 22 and the second fixing member 23 can be adjusted by the first fastening member matching with the long waist hole 222. The first fastener is a bolt.

The second fixing member 23 is a rectangular plate-shaped structure with two ends respectively provided with a mounting hole, and is made of a light and rigid material, such as rigid plastic. The second fastening member is disposed through the mounting hole of the second fixing member 23 and fixed in the adjusting hole 111 of the first light emitting device 11, so as to fix the second fixing member 23 on the light emitting device 1, the first fixing member 22 is fixed in the middle of the second fixing member 23, wherein the length direction of the second fixing member 23 is perpendicular to the axis direction of the centers of the three light emitting devices, the length direction of the first fixing member 22 is perpendicular to the length direction of the second fixing member 23, and the suspended end of the first fixing member 22 faces the bottom layer of the light emitting device 1. The second fastener is a bolt.

The light source device of this structure sets up open region 14, be favorable to erectting this light source device on waiting to detect the product, especially there is the condition by sheltered from position or narrow and small space to the product, like car motor PCB board and PIN welding department, then stretch into through reflection of light component 21 and wait to detect the region, reflection of light component 21 is towards waiting to detect the thing (like the solder joint), the light that light emitting component emitted is incided back and is reflected on reflection of light component 21, with waiting to detect the thing (like the solder joint) and be lighted by the face of sheltering from, thereby realize with waiting to detect other faces of thing and show same effect, thereby realize waiting to detect the normal detection of thing (like solder joint saturation detection).

Example 2

Unlike embodiment 1, the light source device for illuminating the object to be detected may be provided with each light emitting element in 1/4 circular ring type, 3/4 circular ring type, etc., as long as the opening region 14 formed by the light source device and the shape of the light emitting assembly 1 are suitable for being erected on the product to be detected and facilitating the light reflecting element 21 to extend into the area to be detected.

Example 3

The present embodiment provides a light source device for illuminating an object to be detected, which is different from embodiment 1 in that the light source device may also be composed of only one C-type light emitting element, may also be composed of two or four C-type light emitting elements, and so on; so long as it can provide the reflector assembly 2 with light suitable for optical detection and reflect the light through the reflector assembly 2 to illuminate the blocking surface of the object to be detected.

As a further variation of the alternative embodiment, the inner diameter of the inner cavity defined by the C-shaped light emitting element is constant from the bottom layer to the top layer, such as a C-shaped cylindrical shell, etc., as long as the light suitable for optical detection is provided for the reflector assembly 2 and reflected by the reflector assembly to illuminate the shielding surface of the object to be detected.

Example 4

The present embodiment provides a light source device for illuminating an object to be detected, which is different from embodiment 1 in that each cross section of the light emitting elements in the light emitting assembly 1 may also be a closed ring, such as a circle, an ellipse, etc., or the first light emitting element 11 is a closed ring, and the second light emitting element 12 and the third light emitting element 13 are C-shaped, as long as the light emitted by the light emitting assembly 1 can irradiate on the light reflecting assembly 2, the light reflecting element 21 can penetrate into the area to be detected and reflect the light to illuminate the shielding surface of the object to be detected.

As a further variation of the alternative embodiment, the cross-section of the light emitting element may be rectangular, triangular, etc., as long as it can provide light suitable for optical detection to the reflector assembly 2 and reflect the light through the reflector assembly to illuminate the blocked surface of the object to be detected.

Example 5

The embodiment provides a light source device for illuminating an object to be detected, which is different from embodiment 1 in that two pairs, four pairs of symmetrically arranged adjusting holes 111 can be further arranged on each free end face of the first light-emitting element 11, as long as the second fixing member 23 can be fixed on the first light-emitting element 11 and the light reflecting assembly 2 can be adjusted in the axis direction where the centers of the plurality of light-emitting elements are located.

As a further variation of the alternative embodiment, the arrangement of the adjustment holes 111 on each free end surface of the first light emitting element 11 may also be in a direction perpendicular to the axis of the centers of the plurality of light emitting elements, i.e. the adjustment of the reflector assembly 2 in a direction perpendicular to the axis of the centers of the plurality of light emitting elements is achieved.

As a further variation of the alternative embodiment, the adjusting hole 111 of the first light emitting element 11 may be only provided on one free end surface, and correspondingly, the length of the second fixing member 23 is reduced by half, so as to adjust the relative position of the light reflecting component 2 and the light emitting component 1.

As a further variation of the alternative embodiment, the adjustment holes 111 may also be provided on other light emitting elements, such as the free end face of the second light emitting element 12, the free end face of the third light emitting element 13.

Example 6

Unlike embodiment 1, the present embodiment provides a light source device for illuminating an object to be detected, and the first fixing member 22 may be T-shaped or L-shaped instead of the second fixing member 23, so that the first fixing member 22 can be fixed on the light emitting assembly 1.

Example 7

Unlike embodiment 1, the first fixing member 22 may be replaced with another ceramic material having a smaller density and yet maintaining rigidity, and the first fixing member 22 may be prevented from being damaged.

As a further modification of the alternative embodiment, the first fixing member 22 may also be a cylindrical or triangular prism, etc., instead of a rectangular plate-shaped structure, as long as the light reflecting member 21 can be fixed on the first light emitting element 11 and a plurality of reflecting surfaces with different structures are formed, so as to be suitable for illuminating the object to be detected with a complicated surface structure.

Example 8

The embodiment provides a light source device for illuminating an object to be detected, which is different from embodiment 1 in that a reflective element 21 may be further attached to two surfaces of a first fixing member 22 to form two reflective surfaces, and the two reflective surfaces are arranged oppositely to reflect light rays from a light emitting element at different positions.

As a further variant of embodiment, the reflecting element 21 can also be a reflective paint applied to the first fastening element 22 instead of a PVC reflective film.

Example 9

Unlike embodiment 1, the fixed end of the first fixing member 22 may be provided with a plurality of circular holes arranged in sequence instead of the long waist hole 222, so that the first fixing member 22 can be adjusted.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. A light source device for illuminating an object to be detected, comprising:

a light emitting element;

2. The light source device of claim 1, wherein the light reflecting element comprises two reflecting surfaces, and the two reflecting surfaces are arranged oppositely to reflect the light from the light emitting element at different positions.

3. The light source device according to claim 1, wherein the reflecting surface has a rectangular shape, and a length and a width thereof are such that the light from the light emitting element is reflected to partially irradiate the object to be detected.

4. The light source device of claim 2, comprising a removably attachable light emitting assembly including at least one of said light emitting elements and a light reflecting assembly including said light reflecting element; the light reflecting assembly further comprises a first fixing member for fixing the light reflecting element on the light emitting assembly.

5. The light source device of claim 4, wherein the first fixture is a rigid rectangular plate-like structure and the light reflecting element is a flexible light reflecting film.

6. The light source device of claim 5, wherein one end of the first fixing member is fixed to the light emitting assembly, and the flexible reflective film is disposed on two surfaces of the first fixing member.

7. The light source device of claim 6, wherein the reflector assembly further comprises a second fixture having a rigid plate-like structure, the first fixture being fixed to the second fixture, and the second fixture having two ends fixed to the light emitting assembly.

8. The light source device according to claim 7, wherein a cross section of the light emitting element is C-shaped.

9. The light source device of claim 8, wherein the light emitting assembly comprises three light emitting elements stacked to define an inner cavity, and the inner diameter of the inner cavity is gradually reduced from the bottom layer toward the top layer.

10. The light source device according to claim 9, wherein each of the light emitting elements is a semicircular ring shape and includes a circular arc section and two free ends, the second fixing member is fixed to the free end surface of the light emitting element on the top layer, and the first fixing member is disposed along an axial direction where centers of all the light emitting elements are located and faces the bottom layer of the light emitting assembly.