A filter appearance inspection device

Abstract

The utility model discloses a filter appearance inspection device, which relates to the field of optical filter detection technology, including a base, a base bracket, a stereo microscope, a cold light source, a film inspection base, a square partition and a dustproof box cover, wherein the film inspection base is provided with a rectangular cavity in the middle, two bosses are provided on the front, and a peripheral groove is provided on the back. Wherein, a hole for avoiding air is provided at the right angle inside the front boss; the square partition body is arrayed with square through holes, and strip-shaped flanges are provided on the four sides, and evenly distributed protrusions are provided on the inner side of the flange; a central groove is provided in the middle of the front of the dustproof box cover, and a black light-absorbing material is attached to the bottom of the central groove; there is a "┗"-shaped side panel on each side of the base bracket, and a "┗┛"-shaped slot panel is fixed on the upper surface of the side panel, and a column support rod is provided above the slot panel, and the stereomicroscope is fixed on the top through a height knob; the problem of complex structure and low screening accuracy of the filter appearance inspection device in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of optical filter detection, in particular to a filter appearance inspection device. Background Art

[0002] With the continuous update and iteration of smart phones, people's requirements for photo shooting quality are getting higher and higher. The filters used in mobile phone camera modules need to go through dozens of processing steps. Appearance (dirt / dust / bright spots) problems cannot be completely avoided and have a great impact on the image quality, so they need to be fully inspected and screened before use. It can be seen that sheet inspection, screening and classification are essential steps in the optical filter industry. The existing filter appearance inspection devices have complex structures, low screening accuracy, low versatility, and inconvenient operation. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a filter appearance inspection device, which solves the problems of complex structure and low screening accuracy of the filter appearance inspection device in the prior art.

[0004] To achieve the above-mentioned purpose, the utility model proposes a filter appearance inspection device, comprising: a filter inspection box, the filter inspection box comprising a filter inspection base, a square partition and a dust box cover, for placing the filter; the filter inspection base is arranged between the square partition and the dust box cover, and is fixedly connected to the square partition and the dust box cover respectively;

[0005] A base, used to hold the filter inspection box;

[0006] A base bracket, fixedly installed on the base;

[0007] The column support rod is fixedly installed on the base bracket;

[0008] A stereo microscope is arranged on a column support rod, and a focusing wheel is arranged on the stereo microscope;

[0009] Cold light source, including halogen lamp and LED lamp, which are respectively set on the left and right sides of the base bracket;

[0010] Wherein, the halogen lamp is transmitted through glass optical fiber, and the incident angle of the light can be adjusted arbitrarily.

[0011] A further technical improvement of the utility model is that a rectangular cavity is provided in the middle of the film inspection base, a boss is provided on the front side of the film inspection base, and a peripheral groove is provided on the back side.

[0012] A further technical improvement of the utility model is that: the square partition body is provided with square through holes arranged in an array, four sides are provided with strip flanges, and the inner side of the flanges is provided with convex blocks.

[0013] A further technical improvement of the utility model is that a central groove is provided in the middle of the front side of the dustproof box cover, and a light absorbing material is attached to the bottom of the central groove.

[0014] A further technical improvement of the utility model is that the light absorbing material is black.

[0015] A further technical improvement of the utility model is that: the base bracket has a "┗"-shaped side panel on each side, a "┗┛"-shaped slot panel is fixed on the upper surface, a column support rod is provided above the slot panel, and the stereo microscope is fixed on the upper side by a height knob.

[0016] A further technical improvement of the utility model is that the halogen lamp is yellow light, the color temperature is between 3500 and 4500K, and the illumination is between 1800 and 2500LUX; the LED lamp is white light, the color temperature is between 5000 and 7000K, and the illumination is between 25000 and 50000LUX.

[0017] A further technical improvement of the utility model is that: the base support and the slot plate form a cavity, and the height of the cavity is greater than the thickness of the filter test box.

[0018] In the utility model, the filter appearance inspection device has a simple structure, accurate screening, wide versatility, and convenient material placement. Specifically, by adjusting the focusing wheel of the stereo microscope to focus on the filter surface and combining the overhead function of the dual cold light source and the inspection box, transmission and reflection inspections are performed to achieve accurate screening and judgment; the base bracket and the slot plate are designed to avoid air to be compatible with product inspections of different sizes and thicknesses, with wider versatility and more convenient material placement operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0020] Figure 2 This is an exploded schematic diagram of the filter inspection box of the utility model;

[0021] Figure 3 This is the front view of the inspection base of the utility model;

[0022] Figure 4 This is a rear view of the film inspection base of the utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the square partition of the utility model;

[0024] Figure 6 It is a schematic diagram of the structure of the dustproof box cover of the utility model.

[0025] In the figure: 100, filter inspection box; 120, inspection base; 130, square partition; 140, dust box cover; 121, rectangular cavity; 122, air avoidance hole; 123, boss; 124, peripheral groove; 131, flange; 132, square through hole; 133, bump; 141, central groove; 200, base; 300, base bracket; 310, side panel; 320, slot plate; 400, stereo microscope; 410, focusing wheel; 510, halogen lamp; 520, LED lamp; 600, column support rod. DETAILED DESCRIPTION

[0026] The technical solution of the utility model will be described clearly and completely in conjunction with the embodiments below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] like Figure 1-6 As shown, a filter appearance inspection device includes a filter inspection box 100, which is composed of a filter inspection base 120, a square partition 130 and a dust box cover 140. The filter is placed above the square partition 130 for appearance inspection; a base 200 is used to hold the filter inspection box 100 and fix the base bracket 300; the base bracket 300 is used to fix the column support rod 600, and the cold light source is respectively arranged on the left and right sides of the column support rod 600; a stereo microscope 400 is used to magnify or reduce the appearance of the filter, and the filter surface is focused by adjusting the focusing wheel 410 to obtain the best clarity of the appearance of the bad phenomenon; the cold light source includes two light sources, a halogen lamp 510 and an LED lamp 520; wherein, the halogen lamp 510 is transmitted through a glass optical fiber, and the incident angle of the light can be arbitrarily adjusted to form the best presentation effect of the bad phenomenon.

[0028] Furthermore, a rectangular cavity 121 is provided in the middle of the film inspection base 120, and the filter is placed in the inspection box 100 to form an overhead inspection, which can isolate the filter from the background, making the undesirable phenomenon more prominent, facilitating comparative analysis, and making it easier to find appearance problems. A boss 123 is provided on the front, and the boss 123 is in a "┗┛" shape, and a peripheral groove 124 is provided on the back. The "┗┛"-shaped boss 123 is used to limit the moving space of the filter and reduce scratches caused by mutual friction between the two. An air avoidance hole 122 is provided at the right angle inside the boss 123 on the front side of the film inspection base 120 to ensure that the filter can avoid the right angle and reduce the risk of breakage during the placement process. Furthermore, the main body array of the square partition 130 is full of square through holes 132, and strip flanges 131 are provided on the four sides. A protrusion 133 is provided on the inner side of the flange 131 as a support position for the filter. The general dimensions of the mobile phone filter industry are 77x77mm or 80x80mm, which can be achieved through the bump design. The square partition 130 body is arrayed with full square through holes 132, which is convenient for counting the defective rate according to the number of square through holes corresponding to the poor appearance of the filter.

[0029] Furthermore, a central groove 141 is provided in the middle of the front of the dust box cover 140 for sleeve fixing the film inspection base 120. A light absorbing material is attached to the bottom of the central groove 141. In this embodiment, the light absorbing material is black and is made of polished black velvet used in optical cold processing and is made of fine fiber material. This can effectively reduce the incident light of the cold light source 510 and the cold light source 520 and the light that penetrates the filter and then reaches the central groove of the dust box cover 140 and then reflects back to the filter, thereby improving the accuracy of appearance inspection.

[0030] Furthermore, the base bracket 300 has a “┗”-shaped side plate 310 on each side, and a “┗┛”-shaped slot plate 320 is fixed on the upper surface, which is conducive to improving the support strength and saving processing and manufacturing costs. A column support rod 600 is provided above the slot plate 320, and the microscope 400 is fixed on the top through the height knob 410.

[0031] Furthermore, the halogen lamp 510 is yellow light, with a color temperature between 3500 and 4500 K, an illumination between 1800 and 2500 LUX, soft light, a relatively long spectrum, close to sunlight, and more realistic observation. The LED lamp 520 is white light, with a color temperature between 5000 and 7000 K, an illumination between 25000 and 50000 LUX, low energy consumption, high brightness, and balanced color.

[0032] Working principle:

[0033] First, place the square partition flat into the frame formed by the front boss of the inspection base, then put the dust box cover on the outer groove on the back of the inspection base to complete the assembly of the filter inspection box, then place the filter on the partition and observe it under a microscope, adjust the focus wheel and the position of the cold light source to make the light shine on the filter placement area; after the filter screening is completed, put it back into the blister packaging box for dust-proof storage.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A filter appearance inspection device, characterized in that: include: A filter inspection box (100), the filter inspection box (100) comprising a filter inspection base (120), a square partition (130) and a dustproof box cover (140), and used for placing filters; the filter inspection base (120) is arranged between the square partition (130) and the dustproof box cover (140), and is fixedly connected to the square partition (130) and the dustproof box cover (140) respectively; A base (200) for holding the filter inspection box (100); A base bracket (300) is fixedly mounted on the base (200); A column support rod (600) is fixedly mounted on the base support (300); A stereo microscope (400) is arranged on a column support rod (600), and a focusing wheel (410) is arranged on the stereo microscope (400); A cold light source, comprising two light sources, a halogen lamp (510) and an LED lamp (520), which are respectively arranged on the left and right sides of the base support (300); Wherein, the halogen lamp (510) is transmitted via glass optical fiber, and the incident angle of the light can be adjusted arbitrarily.

2. A filter appearance inspection device according to claim 1, characterized in that: A rectangular cavity (121) is provided in the middle of the film inspection base (120), a boss (123) is provided on the front side of the film inspection base (120), and a peripheral groove (124) is provided on the back side.

3. The filter appearance inspection device according to claim 1, characterized in that: The main body of the square partition plate (130) is provided with square through holes (132) arranged in an array, and strip-shaped flanges (131) are provided on four sides, and a convex block (133) is provided on the inner side of the flange (131).

4. The filter appearance inspection device according to claim 1, characterized in that: A central groove (141) is provided in the middle of the front side of the dustproof box cover (140), and a light absorbing material is attached to the bottom of the central groove (141).

5. The filter appearance inspection device according to claim 4, characterized in that: The light absorbing material is black.

6. The filter appearance inspection device according to claim 1, characterized in that: The base bracket (300) has a "┗"-shaped side plate (310) on both sides, and a "┗┛"-shaped slot plate (320) is fixed on the upper surface. A column support rod (600) is provided above the slot plate (320), and the stereo microscope (400) is fixed on the upper side through a height knob.

7. The filter appearance inspection device according to claim 1, characterized in that: The halogen lamp (510) is yellow light, with a color temperature between 3500 and 4500 K and an illumination between 1800 and 2500 LUX; the LED lamp (520) is white light, with a color temperature between 5000 and 7000 K and an illumination between 25000 and 50000 LUX.

8. The filter appearance inspection device according to claim 1, characterized in that: The base support (300) and the slot plate (320) form a cavity, and the height of the cavity is greater than the thickness of the filter inspection box (100).

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