CN202203760U

CN202203760U - Bonding coaxial illumination AOI light source device

Info

Publication number: CN202203760U
Application number: CN2011201782811U
Authority: CN
Inventors: 王锦峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-05-31
Filing date: 2011-05-31
Publication date: 2012-04-25
Anticipated expiration: 2021-05-31

Abstract

The utility model discloses a bonding coaxial illumination AOI light source device, which includes a light source outer cover, wherein a coaxial light pressure plate, a window plate, a diffusion plate, a light splitting plate and a red light circuit board are installed on the light source outer cover. The bonding coaxial illumination AOI light source device is characterized in that three groups of LED lamp groups including a high position green light LED lamp group, a middle position blue light LED lamp group and a low position blue light LED lamp group are fixed at high, middle and low positions inside the light source outer cover respectively, are arranged in a circumference shape and share the same center; and a light source diffusion cover is further arranged at the bottom of the light source outer cover. The utility model has the advantages that the bonding coaxial illumination AOI light source device has a simple and compact structure, can provide an omnidirectional illumination environment, better present the image characteristic of AOI detection field, enables the light source luminance to be even and the light source to be more clearly and directly irradiated on the PCB through the light source diffusion cover, and facilitates improving the detection effect.

Description

Nation decides coaxial lighting AOI light source device

Technical field

The utility model relates to the led light source device, is specifically related to a kind of nation and decides coaxial lighting AOI light source device.

Background technology

In the whole process of production in fields such as electron production, SMT surface mount; All need carry out the Quality Detection and the quality management and control of outward appearance to the electronic component that relates to, paster etc.; Irradiation through light source comes detecting element, paster surface whether to have defective, to get rid of non-compliant element, paster, avoids the waste that the later stage does over again; And existing AOI light supply apparatus adopts LED as light source irradiation more.

But, receive traditional AOI light supply apparatus structure influence, when taking; Its imaging source is taken the hole site because must keep, and makes that taking the below, hole is lighting blind zone; Field-of-view image and other position image difference of taking the below, hole are very big, have a strong impact on automated optical and detect effect.

For this reason, the applicant has applied for that not long ago a key name is called the Chinese utility model patent of " coaxial lighting AOI light source device ", the patent No.: 201020112660.6; This kind of AOI light supply apparatus has improved lighting environment to a certain extent, embodies AOI detection range picture characteristics better.But; Above-mentioned AOI light supply apparatus; Still have following weak point: (1) in view of the three groups of LED lamp groups (that is: red, blue, green three groups of LED lamps) in the light source outer cover (being equivalent to middle cover) respectively by three wiring boards as carrier, its structure obviously complicacy, small product size is big, cost is high; (2) the light source diffusion shell is set up in existing AOI light supply apparatus bottom, and therefore, LED lamp system shines directly on the pcb board; Yet, receiving the brightness irregularities of each light source, the unintelligible influence, light source shines directly on the pcb board; Can influence it and detect effect, even therefore cause erroneous judgement.

The utility model content

The purpose of the utility model is to overcome the deficiency that exists in the above-mentioned prior art; And provide a kind of simple in structure, compact; The lighting environment of full angle can be provided, embody AOI detection range characteristics of image better, can pass through the light source diffusion shell again; Light-source brightness more evenly, is more clearly shone directly on the pcb board, and the nation that helps improving the effect of detection decides coaxial lighting AOI light source device.

The purpose of the utility model is achieved in that

Nation decides coaxial lighting AOI light source device; Comprise the light source outer cover, axis light pressing plate, diaphragm, diffuser plate, light splitting piece and ruddiness wiring board are installed on the light source outer cover, it is characterized in that; Be fixed with three groups of LED lamp groups respectively by high, normal, basic position in the said light source outer cover; They are respectively high-order green light LED lamp group, meta blue LED lamp group and low level blue LED lamp group, and said three groups of LED lamp groups are all with circle-shaped arrangement and have the identical center of circle, and light source outer cover bottom also is provided with the light source diffusion shell; This kind of AOI light supply apparatus, through two kinds of colors, three groups of led light sources are set in the light source outer cover, that is: the light sources of a group of green and two groups of bluenesss; Wherein, two groups of blue light sources can be incorporated on the identical carrier wiring board, overcome in the prior art; Because of using three kinds of colors, three kinds of carrier wiring boards; And cause complex structure, not compact, volume is big and many deficiencies such as cost height, rational in infrastructure, compact with the light supply apparatus that embodies this scheme can provide the lighting environment of full angle; Embody AOI detection range characteristics of image better; Can light-source brightness more evenly, more clearly be shone directly on the pcb board through the light source diffusion shell being set again, help improving the effect of detection in the light supply apparatus bottom.

The purpose of the utility model can also adopt following technical measures to solve:

As scheme more specifically; Said circle-shaped arrangement also has three groups of LED lamp groups of phase concentric; Its circle diameter by little to being high-order green light LED lamp group, meta blue LED lamp group and low level blue LED lamp group greatly successively; That is: the low level blue LED lamp group that effluxes, middle blue LED lamp group and interior row's high-order green light LED lamp group is to form by the interior circle-shaped lamp group of three rows outward.

[0006]As better embodiment; Said high-order green light LED lamp group is arranged on the green glow wiring board, and meta blue LED lamp group and low level blue LED lamp group all are arranged on the same blue light wiring board, wherein; Low level blue LED lamp group is long footlights pipe; Meta blue LED lamp group is short footlights pipe, so that low level blue LED lamp group is lower than same meta blue LED lamp group on the blue light wiring board, said green glow wiring board is positioned at the top of blue light wiring board; Therefore, three groups of lamp groups are merely two wiring boards, both simplified its structure, made more compact structure, and volume is littler, and cost is lower.

Fluorescent tube on said high-order green light LED lamp group, meta blue LED lamp group and the low level blue LED lamp group is with perpendicular to separately lamp plate setting; The LED lamp group of vertical configuration makes light source more approach the printing opacity cover body, and its brightness is better.

The printing opacity cover body of the approximate Lamp cup shape of said light source diffusion shell system.

The beneficial effect of the utility model is:

(1) the utility model nation decides the AOI light supply apparatus of coaxial-illuminating, through two kinds of colors, three groups of led light sources are set in the light source outer cover, that is: and the light sources of a group of green and two groups of bluenesss; Wherein, two groups of blue light sources can be incorporated on the identical carrier wiring board, overcome in the prior art; Because of using three kinds of colors, three kinds of carrier wiring boards; And cause complex structure, not compact, volume is big and many deficiencies such as cost height, rational in infrastructure, compact with the light supply apparatus that embodies this scheme can provide the lighting environment of full angle; Embody AOI detection range characteristics of image better; Can light-source brightness more evenly, more clearly be shone directly on the pcb board through the light source diffusion shell being set again, help improving the effect of detection in the light supply apparatus bottom.

Description of drawings

Fig. 1 is the partition structural representation that the utility model nation decides the AOI light supply apparatus of coaxial-illuminating;

Fig. 2 is the cutaway view that the utility model nation decides the AOI light supply apparatus of coaxial-illuminating;

Fig. 3 is the shooting schematic diagram that the utility model nation decides the AOI light supply apparatus of coaxial-illuminating.

The specific embodiment

As depicted in figs. 1 and 2; A kind of nation decides coaxial lighting AOI light source device; Comprise light source outer cover 1, axis light pressing plate 2, diaphragm 3, diffuser plate 4, light splitting piece 5 and ruddiness wiring board 6 are installed on the light source outer cover 1, it is characterized in that; Be fixed with three groups of LED lamp groups respectively by high, normal, basic position in the said light source outer cover 1; They are respectively high-order green light LED lamp group 7, meta blue LED lamp group 8 and low level blue LED lamp group 9, and said three groups of

LED lamp groups

7,8,9 are all with circle-shaped arrangement and have the identical center of circle, and light source outer cover 1 bottom also is provided with light source diffusion shell 10.

As scheme more specifically, above-mentioned circle-shaped arrangement also has three groups of

LED lamp groups

7,8,9 of phase concentric, its circle diameter by little to being high-order green light LED lamp group 7, meta blue LED lamp group 8 and low level blue LED lamp group 9 greatly successively.

Said high-order green light LED lamp group 7 is arranged on the green glow wiring board A; Meta blue LED lamp group 8 all is arranged on the same blue light wiring board B with low level blue LED lamp group 9; Wherein, low level blue LED lamp group 9 is long footlights pipe, and meta blue LED lamp group 8 is short footlights pipe; So that low level blue LED lamp group 9 is lower than same meta blue LED lamp group 8 on the blue light wiring board B, said green glow wiring board A is positioned at the top of blue light wiring board B.

Fluorescent tube on said high-order green light LED lamp group 7, meta blue LED lamp group 8 and the low level blue LED lamp group 9 is with perpendicular to separately lamp plate setting.

Said light source diffusion shell 10 is the printing opacity cover body of approximate Lamp cup shape.

Operation principle: see shown in Figure 3ly, during shooting, filming apparatus 11 is arranged on the top of diaphragm 3; The light of ruddiness wiring board 6 is luminous from the side; See through the light splitting piece 5 that diffuser plate 4 shines the flat inclined mirror body, but these light splitting piece 5 removal of images ghost image coatings, therefore; Most of light is reflexed on the illuminated object 12 by light splitting piece 5, and the good coaxial illumination that falls to penetrating is provided; Two kinds of colors in the light source outer cover 1, the light of three groups of led light sources shine on the object 12 through light source diffusion shell 10; In view of light source diffusion shell 10 has the light source diffusion; Light source more evenly, is more clearly shone on the illuminated object 12, improve the effect of its detection, avoid erroneous judgement.

Claims

1. nation decides coaxial lighting AOI light source device; Comprise light source outer cover (1); Axis light pressing plate (2), diaphragm (3), diffuser plate (4), light splitting piece (5) and ruddiness wiring board (6) are installed on the light source outer cover (1); It is characterized in that be fixed with three groups of LED lamp groups respectively by high, normal, basic position in the said light source outer cover (1), they are respectively high-order green light LED lamp group (7), meta blue LED lamp group (8) and low level blue LED lamp group (9); Said three groups of LED lamp groups (7,8,9) are all with circle-shaped arrangement and have the identical center of circle, and light source outer cover (1) bottom also is provided with light source diffusion shell (10).

2. decide coaxial lighting AOI light source device according to the said nation of claim 1; It is characterized in that; Said circle-shaped arrangement also has three groups of LED lamp groups (7,8,9) of phase concentric, its circle diameter by little to being high-order green light LED lamp group (7), meta blue LED lamp group (8) and low level blue LED lamp group (9) greatly successively.

3. decide coaxial lighting AOI light source device according to claim 1 or 2 said nations; It is characterized in that; Said high-order green light LED lamp group (7) is arranged on the green glow wiring board (A), and meta blue LED lamp group (8) and low level blue LED lamp group (9) all are arranged on the same blue light wiring board (B), wherein; Low level blue LED lamp group (9) is long footlights pipe; Meta blue LED lamp group (8) is short footlights pipe, so that low level blue LED lamp group (9) is lower than the meta blue LED lamp group (8) on the same blue light wiring board (B), said green glow wiring board (A) is positioned at the top of blue light wiring board (B).

4. decide coaxial lighting AOI light source device according to the said nation of claim 3, it is characterized in that, the fluorescent tube on said high-order green light LED lamp group (7), meta blue LED lamp group (8) and the low level blue LED lamp group (9) is with perpendicular to separately lamp plate setting.

5. decide coaxial lighting AOI light source device according to the said nation of claim 1, it is characterized in that, said light source diffusion shell (10) is the printing opacity cover body of approximate Lamp cup shape.