CN214225642U - Blue and white light combined backlight source - Google Patents

Abstract

The utility model provides a pair of blue, white light combination backlight, the mounting panel comprises a mounting panel, the logical unthreaded hole that link up about the mounting panel middle part is equipped with, it is equipped with the white light backlight to lead to the unthreaded hole lower extreme, it is equipped with diffusion blue light sidelight source, reflection lens respectively to lead to unthreaded hole upper end both sides, reflection lens with the contained angle that the mounting panel up end formed is beta, and beta is not less than 30 and is not less than 60. The utility model discloses a blue, white light combination backlight can cooperate the CCD camera to use, is shaded for providing white among the size measurement process of clear glass product, provides the diffuse light source among the point footpath measurement process for two-dimensional code identification area.

Description

Blue and white light combined backlight source

Technical Field

The utility model relates to a light source equipment technical field, concretely relates to blue, white light combination backlight.

Background

In the production process of some manufacturers, marks such as a serial number, a bar code number, a two-dimensional code identification pattern and the like can be made in the product, the sizes of the marks are extremely small, and the sizes of the products are not affected, for example, in a transparent glass product 7 shown in fig. 5-6, a two-dimensional code identification area 71 with an area of 0.02mm x 0.02mm is formed in the transparent glass product 7, and the two-dimensional code identification area 71 is composed of a plurality of points with the diameter of 0.5 μm. After the production of the transparent glass product 7 is completed, the size of the transparent glass product 7 and the two-dimension code identification area 71 therein need to be measured, and the conventional white light backlight source is utilized to be matched with the CCD camera, so that the size of the transparent glass product 7, such as length, width and the like, can be measured, but because the size of the two-dimension code identification area 71 is extremely small, if the white light backlight source is directly applied to measure the points in the two-dimension code identification area 71, the CCD camera detects that a white exposure phenomenon appears at the position of the two-dimension code identification area 71, and the point diameter of each point in the two-dimension code identification area 71 cannot be measured.

SUMMERY OF THE UTILITY MODEL

To above problem, the utility model provides a blue, white light combination backlight can cooperate the CCD camera to use, is shaded for providing white in the contour dimension measurement process of transparent glass product, provides the blue light source of diffusion for the point footpath measurement process in two-dimensional code identification area.

In order to achieve the above object, the present invention provides the following technical solutions:

the utility model provides a blue, white light combination backlight, includes the mounting panel, the mounting panel middle part is equipped with logical unthreaded hole that link up from top to bottom, it is equipped with white light backlight to lead to the unthreaded hole lower extreme, it is equipped with diffusion blue light sidelight source, reflector plate respectively to lead to unthreaded hole upper end both sides, the reflector plate with the contained angle that the mounting panel up end formed is beta, and beta is not less than 30 is not less than 60.

Specifically, β is 45 °, and an angle formed between the mirror plate and the upper end surface of the mounting plate is 45 °.

Specifically, be equipped with the spout on the mounting panel, be equipped with slidable supporting seat on the spout, the supporting seat lean on to diffusion blue light sidelight source one end is equipped with the mounting groove, the speculum piece is fixed the mounting groove is inboard.

Specifically, the supporting seat both ends still are connected with the extension board, be equipped with the waist hole on the extension board, be equipped with the screw on the mounting panel, the screw is located under the waist hole, the supporting seat pass through the bolt with the cooperation of waist hole, screw is fixed the mounting panel upside.

Specifically, two side plates are further fixed on the mounting plate, and the diffused blue light side light source is fixed between the two side plates.

The utility model has the advantages that:

the utility model discloses a blue, white light combination backlight, the mountable is in the objective table below of measuring apparatu, the CCD camera uses in the cooperation measuring apparatu, white light backlight has been increased, in the contour dimension measurement process of clear glass product, can provide white backlight for the clear glass product, diffusion blue light sidelight source has been increased, in the footpath measurement process of point in the two-dimensional code identification area, can provide the diffusion light source for the two-dimensional code identification area, make the CCD camera can shoot each in the two-dimensional code identification area, thereby measure the footpath of point of each point.

Drawings

Fig. 1 is a three-dimensional structure diagram of a blue and white light combined backlight source of the present invention.

Fig. 2 is a three-dimensional structure diagram of the middle mounting plate of the present invention.

Fig. 3 is a top view of a blue and white light combined backlight source according to the present invention.

Fig. 4 is a cross-sectional view taken along the plane a-a in fig. 3.

Fig. 5 is a schematic view of the structure of a transparent glass product.

Fig. 6 is a schematic structural diagram of a two-dimensional code identification area.

Fig. 7 is a schematic structural view of the blue-white light combined backlight source and the CCD camera of the present invention cooperating to measure the transparent glass product.

The reference signs are: the device comprises a mounting plate 1, a light through hole 11, a sliding groove 12, a screw hole 13, a white light backlight source 2, a diffused blue light side light source 3, a reflector 4, a supporting seat 5, an extension plate 51, a waist hole 52, a side plate 6, a transparent glass product 7, a two-dimensional code identification area 71 and a CCD camera 8.

Detailed Description

The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.

Referring to FIGS. 1-7:

a blue and white light combined backlight source can be arranged below an object carrying plate in a measuring instrument and is matched with a CCD camera 8 for use, and comprises an installation plate 1, wherein the middle part of the installation plate 1 is provided with a light through hole 11 which is vertically communicated, the lower end of the light through hole 11 is provided with a white light backlight source 2, before measurement, a transparent glass product 7 is required to be placed on the object carrying plate, namely the transparent glass product 7 is positioned right above the light through hole 11, the white light backlight source 2 is started, the white light backlight source 2 upwards emits white light to provide white backlight for the size measurement of the transparent glass product 7, the definition of the surface outline of the transparent glass product 7 is improved, then the CCD camera 8 is utilized to shoot pictures for the transparent glass product 7 below so as to measure the sizes such as the length and the width of the transparent glass product 7, in addition, a two-dimensional code identification area 71 with the area of 0.02mm multiplied by 0.02mm is formed in the transparent glass product 7, the two-dimensional code identification area 71 is composed of a plurality of points with the diameter of 0.5 mu m, the dot diameter of each dot in the two-dimensional code identification area 71 needs to be measured, so that the diffused blue light side light source 3 and the reflecting lens 4 are respectively arranged on the two sides of the upper end of the light through hole 11, the included angle formed by the reflecting lens 4 and the upper end surface of the mounting plate 1 is beta, beta is 45 degrees, when the dot diameter of each dot in the two-dimensional code identification area 71 is measured, the white light backlight source 2 is turned off, the diffused blue light side light source 3 is turned on, the diffused blue light side light source 3 emits blue light which is diverged in all directions, after part of the blue light is reflected by the 45-degree reflecting lens 4, when the reflected light irradiates each point in the two-dimensional code identification area 71, shading is generated, the rest reflected blue light directly passes through the transparent glass product 7, so when the CCD camera 8 shoots, a black halo is formed at the shading position, that is, a distinct two-dimensional code recognition area 71 is formed in the image, and the dot diameter of each dot is measured in cooperation with the CCD camera 8.

Preferably, the mounting plate 1 is provided with a sliding groove 12, the sliding groove 12 is provided with a slidable supporting seat 5, one end of the supporting seat 5, which is close to the diffused blue light side light source 3, is provided with a mounting groove, the reflective lens 4 is fixed inside the mounting groove, and the distance between the reflective lens 4 and the diffused blue light side light source 3 can be adjusted by adjusting the position of the supporting seat 5 in the sliding groove 12, so as to adapt to the measurement of the two-dimensional code identification areas 71 with different sizes.

Preferably, the two ends of the supporting seat 5 are further connected with extension plates 51, waist holes 52 are formed in the extension plates 51, screw holes 13 are formed in the mounting plate 1, the screw holes 13 are located under the waist holes 52, the supporting seat 5 is fixed on the upper side of the mounting plate 1 through the matching of bolts, the waist holes 52 and the screw holes 13, and the positions of the bolts in the waist holes 52 are adjusted through the elastic fit of the bolts and the screw holes 13, so that the effect of adjusting the positions of the supporting seat 5 is achieved.

Preferably, two side plates 6 are further fixed on the mounting plate 1, and the diffused blue light side light source 3 is fixed between the two side plates 6.

The above embodiments only represent one embodiment of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (5)

1. The utility model provides a blue, white light combination backlight, its characterized in that, includes mounting panel (1), mounting panel (1) middle part is equipped with logical unthreaded hole (11) that link up from top to bottom, logical unthreaded hole (11) lower extreme is equipped with white light backlight (2), logical unthreaded hole (11) upper end both sides are equipped with diffusion blue light sidelight source (3), reflector plate (4) respectively, reflector plate (4) with the contained angle that mounting panel (1) up end formed is beta, and beta is more than or equal to 30 is less than or equal to 60.

2. A combined blue and white backlight according to claim 1, wherein β is 45 °, and the angle formed by the reflecting mirror (4) and the upper end face of the mounting board (1) is 45 °.

3. A combined blue and white backlight according to claim 1, wherein the mounting plate (1) is provided with a sliding groove (12), the sliding groove (12) is provided with a slidable supporting seat (5), one end of the supporting seat (5) close to the side light source (3) for diffusing blue light is provided with a mounting groove, and the reflective lens (4) is fixed inside the mounting groove.

4. A blue and white light combined backlight source as claimed in claim 3, wherein the two ends of the supporting base (5) are further connected with extending plates (51), the extending plates (51) are provided with waist holes (52), the mounting plate (1) is provided with screw holes (13), the screw holes (13) are located right below the waist holes (52), and the supporting base (5) is fixed on the upper side of the mounting plate (1) through the cooperation of bolts, the waist holes (52) and the screw holes (13).

5. A combined blue and white backlight according to claim 1, characterised in that two side panels (6) are fixed to the mounting board (1), and the side light source (3) for diffusing blue light is fixed between the two side panels (6).

Images