CN214149767U

CN214149767U - Contact lens surface defect detection device

Info

Publication number: CN214149767U
Application number: CN202120232709.XU
Authority: CN
Inventors: 侯春华
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-27
Filing date: 2021-01-27
Publication date: 2021-09-07
Anticipated expiration: 2031-01-27

Abstract

The utility model relates to a not only detect the accuracy good, can avoid the parasitic light to disturb in addition, a contact lens surface defect detection device that detection efficiency is high simultaneously, including camera, contact lens carrier and face light source, the upper end of area source is equipped with the upper end of bed hedgehopping piece and is equipped with the contact lens carrier, the up end of bed hedgehopping piece is opened has a plurality of bed hedgehopping piece about terminal surface through-hole and a plurality of through-hole and contact lens carrier corresponding contact lens place a pair of expert, the camera is located the top of contact lens carrier and the camera lens in the camera just to the contact lens carrier. The advantages are that: a heightening plate is additionally arranged between a contact lens carrier and a surface light source, so that the interference of stray light can be avoided, and the detection accuracy can be improved.

Description

Contact lens surface defect detection device

Technical Field

The utility model relates to a not only detect the accuracy good, can avoid the parasitic light to disturb moreover, a contact lens surface defect detection device that detection efficiency is high simultaneously belongs to and detects technical field.

Background

CN 205139045U entitled "automatic detection equipment for defects of contact lenses", which comprises an image acquisition device, a tray, an XY moving platform, an illumination light source, a frame and a central processing computer; the lighting source and the XY moving platform are sequentially arranged on the frame from bottom to top; the tray is arranged on the XY moving platform; the image acquisition device is arranged on the rack above the tray; the image acquisition device and the XY moving platform are electrically connected with the central processing computer. The light scattering plate is positioned on the machine frame between the illumination light source and the XY moving platform. The distance between the light diffusion plate and the illumination light source is 4-6 cm. One or more than two spherical cap type pits are arranged on the tray. The spherical cap type pit is internally provided with normal saline, the automatic detection equipment for the defects of the contact lenses further comprises a normal saline rotating mechanism, and the normal saline rotating mechanism is electrically connected with the central processing computer. The lighting source is an LED lighting source; or the LED lighting source is only provided with one LED lamp bead; or the LED lighting source comprises more than two LED lamp beads, and the arrangement mode of the LED lamp beads is a structure that one LED lamp bead is taken as the center of a circle and is sequentially arranged into more than two concentric circles; wherein, a circle of LED lamp beads are arranged at an angle of 30-60 degrees towards the direction of the circle center; or the LED lighting source comprises more than two LED lamp beads, and the arrangement mode of the LED lamp beads is in matrix arrangement. The disadvantages are that: when the automatic detection equipment for the defects of the contact lenses is used for detecting the defects of the contact lenses, stray light can generate certain interference on detection, so that the detection effect is influenced.

SUMMERY OF THE UTILITY MODEL

The design purpose is as follows: in order to avoid the defects in the background technology, the device for detecting the surface defects of the contact lenses is designed, which not only has good detection accuracy, but also can avoid stray light interference and has high detection efficiency.

The design scheme is as follows: the design purpose is realized.

1. The upper end that the upper end of area source was equipped with bed hedgehopping piece and bed hedgehopping piece is equipped with the contact lens carrier, the up end of bed hedgehopping piece is opened has a plurality of to link up the bed hedgehopping piece about terminal surface through-hole and a plurality of through-holes and the contact lens of the correspondence in the contact lens carrier place a pair of expert in the hole, the camera is located the top of contact lens carrier and the camera lens in the camera just to the design of contact lens carrier, is one of the technical characteristics of the utility model. The purpose of this design is: the upper end of the surface light source is provided with a block-up block, the upper end of the block-up block is provided with a contact lens carrier, the upper end surface of the block-up block is provided with a plurality of through holes which penetrate through the upper end surface and the lower end surface of the block-up block, the through holes are communicated with corresponding contact lens placing holes in the contact lens carrier in a one-to-one mode, the camera is positioned above the contact lens carrier, a lens in the camera is opposite to the contact lens carrier, the convex spherical surface part of the contact lens is positioned in the corresponding through hole after the contact lens is placed in the contact lens placing hole, light generated by the surface light source is irradiated onto the contact lens after passing through the through hole, the light can be irradiated into the lens of the camera after passing through the contact lens placing hole, namely, the light emitted by the surface light source is irradiated onto the corresponding contact lens through each through hole, and thus defects on the contact lens can be better represented; in addition, each contact lens has an independent light path, so that stray light around the contact lens cannot enter the through hole, namely the peripheral light cannot interfere with the surface defect characteristics of the contact lens, the defect characteristics are easier to identify, and the camera can shoot a plurality of contact lenses simultaneously, namely the device can detect the defects of the contact lenses at one time, so that the detection efficiency of the contact lenses is greatly improved.

2. The bed hedgehopping piece comprises bed hedgehopping board and a plurality of cylinder, the lower terminal surface of bed hedgehopping board is equipped with a plurality of cylinders and a plurality of cylinder and is overall structure with the bed hedgehopping board, be equipped with a plurality of through-holes one on the bed hedgehopping board, be equipped with through-hole two and the through-hole one that corresponds link up each other on the cylinder, the through-hole is by the design that corresponds the through-hole one that link up and through-hole two form, it is the utility model discloses a two technical characteristics. The purpose of this design is: the heightening block is composed of a heightening plate and a plurality of cylinders, so that the heightening block with the structure not only saves the material, but also reduces the whole weight of the heightening block.

3. The camera passes through the support setting in the top of contact lens carrier, the support includes round bar base, round bar and horizontal pole, the lower end of round bar is installed on the round bar base, the one end of horizontal pole is equipped with the round bar chuck, the other end is equipped with the camera chuck, the horizontal pole passes through the round bar chuck and installs on the pole body of round bar, the camera passes through the design that the camera chuck was installed on the horizontal pole, is the utility model discloses a three technical characteristics. The purpose of this design is: the camera passes through the support setting in the top of contact lens carrier, the support includes round bar base, round bar and horizontal pole, the lower end of round bar is installed on the round bar base, the one end of horizontal pole is equipped with the round bar chuck, the other end is equipped with the camera chuck, the horizontal pole passes through the round bar chuck and installs on the pole body of round bar, the camera passes through the camera chuck and installs on the horizontal pole, two clamp blocks in the round bar chuck pass through the screw and realize pressing from both sides tightly, and the user leads to the relative height that the screw just can the quick adjustment camera and contact lens carrier between to realize the adjustment of the best shooting distance of camera.

The technical scheme is as follows: the contact lens surface defect detection device comprises a camera, a contact lens carrier and a surface light source, wherein the upper end of the surface light source is provided with a block-up block, the upper end of the block-up block is provided with the contact lens carrier, the upper end face of the block-up block is provided with a plurality of through holes which penetrate through the upper end face and the lower end face of the block-up block, the through holes are communicated with corresponding contact lens placing holes in the contact lens carrier one to one, and the camera is positioned above the contact lens carrier and is opposite to the contact lens carrier.

Compared with the prior art, the utility model, a set up a bed hedgehopping board between contact lens surface defect detection device contact lens carrier and the face illuminant, so not only can avoid the parasitic light to disturb, can improve moreover and detect the accuracy.

Drawings

FIG. 1 is a schematic view of a contact lens surface defect detecting apparatus in partial section.

Fig. 2 is a schematic perspective view of the contact lens carrier, the block and the surface light source when they are assembled.

FIG. 3 is a schematic view of a partial cross-sectional structure of a contact lens surface defect detecting apparatus (with an additional holder).

Detailed Description

Example 1: reference is made to figures 1-3 of the drawings. The utility model provides a contact lens surface defect detection device, includes camera 1, contact lens carrier 2 and surface light source 3, the upper end of surface light source 3 is equipped with bed hedgehopping piece 4 and the upper end of bed hedgehopping piece 4 is equipped with contact lens carrier 2, the up end of bed hedgehopping piece 4 is opened has a plurality of through bed hedgehopping piece 4 from top to bottom terminal surface through-hole 5 and a plurality of through-hole 5 and the contact lens that corresponds in the contact lens carrier 2 place the hole one-to-one expert, camera 1 is located the top of contact lens carrier 2 and camera 6 in camera 1 just to contact lens carrier 2. After the contact lens 7 is placed in the contact lens placing hole, the convex spherical surface part of the contact lens 7 is positioned in the corresponding through hole 5, light generated by the surface light source 3 irradiates the contact lens 7 after passing through the through hole 5, and the light penetrates through the contact lens 7 and penetrates through the contact lens placing hole, and then can enter the lens 6 of the camera 1. During detection, the surface light source 3 is started, the camera 1 shoots the contact lens carrier 2 with the contact lenses, the camera 1 can upload shot pictures to the control computer in real time, when defect characteristics exist on the surfaces of the contact lenses 7, brightness and darkness differences can be generated between the defect characteristics and peripheral non-defect parts under the irradiation of light, and the control computer can analyze and judge the differences to realize the detection of the defects of the contact lenses.

The block 4 is a square block, the thickness of the block 4 is larger than the height of the contact lens 7, namely the depth of the through hole 5 is larger than the height of the contact lens 7, and the symmetrical center line of the through hole 5 is superposed with the symmetrical center line of the corresponding contact lens placing hole; the block 4 itself is not transparent or transparent to light.

The heightening block 4 is composed of a heightening plate 41 and a plurality of cylinders 42, the lower end face of the heightening plate 41 is provided with the plurality of cylinders 42, the plurality of cylinders 42 and the heightening plate 41 are of an integral structure, the heightening plate 41 is provided with a plurality of first through holes, the first through holes penetrate through the upper end face and the lower end face of the heightening plate 41, the cylinders 42 are provided with second through holes, the second through holes are communicated with the corresponding first through holes, the second through holes penetrate through the upper end face and the lower end face of the cylinders 42, the symmetrical center lines of the first through holes are superposed with the symmetrical center lines of the second through holes, and the through holes 5 are formed by the first through holes and the second through holes which are correspondingly communicated; the raised plate 41 is not transparent or transparent to light itself, and the cylinder 42 is not transparent or transparent to light itself. The surface light source 3 is a flat light source.

The camera 4 is arranged above the contact lens carrier 2 through the support 8, the support 8 comprises a round bar base 81, a round bar 82 and a cross bar 83, the lower end head of the round bar 82 is arranged on the round bar base 81, one end of the cross bar 83 is provided with a round bar chuck 84, the other end of the cross bar 83 is provided with a camera chuck 85, the cross bar 83 is arranged on the bar body of the round bar 82 through the round bar chuck 84, and the camera 1 is arranged on the cross bar 83 through the camera chuck 85. The two clamping blocks in the round bar clamp 84 are clamped by a screw 86.

It is to be understood that: although above-mentioned embodiment is right the utility model discloses a design has done more detailed word description, but these word descriptions, are only right the utility model relates to a simple word description of idea, rather than right the utility model relates to a restriction of idea, any do not surpass the utility model relates to a combination, increase or the modification of idea all fall into the utility model discloses a within the protection scope.

Claims

1. The utility model provides a contact lens surface defect detection device, includes camera (1), contact lens carrier (2) and face light source (3), characterized by: the contact lens carrier is characterized in that a padding block (4) is arranged at the upper end of the surface light source (3), a contact lens carrier (2) is arranged at the upper end of the padding block (4), a plurality of through holes (5) penetrating through the padding block (4) and the upper end face and the lower end face of the padding block (4) are formed in the upper end face of the padding block (4), the through holes (5) are communicated with corresponding contact lens placing holes in the contact lens carrier (2) in a one-to-one mode, and the camera (1) is located above the contact lens carrier (2) and is opposite to the contact lens carrier (2) through a lens (6) in the camera (1).

2. The apparatus of claim 1, wherein: after the contact lens (7) is placed in the contact lens placing hole, the convex spherical surface part of the contact lens (7) is positioned in the corresponding through hole (5), light generated by the surface light source (3) irradiates the contact lens (7) after passing through the through hole (5), and the light can penetrate through the contact lens (7) and penetrate through the contact lens placing hole to be shot into the lens (6) of the camera (1).

3. The apparatus for detecting surface defects of contact lenses according to claim 1 or 2, wherein: the block (4) is square, the thickness of the block (4) is larger than the height of the contact lens (7), and the symmetrical center line of the through hole (5) coincides with the symmetrical center line of the corresponding contact lens placing hole.

4. The apparatus for detecting surface defects of contact lenses according to claim 1 or 2, wherein: bed hedgehopping piece (4) comprise bed hedgehopping board (41) and a plurality of cylinder (42), the lower terminal surface of bed hedgehopping board (41) is equipped with a plurality of cylinders (42) and a plurality of cylinder (42) and is overall structure with bed hedgehopping board (41), be equipped with a plurality of through-holes one on bed hedgehopping board (41), be equipped with two and the through-hole of through-hole link up each other with the through-hole one that corresponds on cylinder (42), through-hole (5) are formed by corresponding through-hole one and through-hole two that link up.

5. The apparatus of claim 1, wherein: the surface light source (3) is a flat light source.

6. The apparatus of claim 1, wherein: camera (1) sets up the top at contact lens carrier (2) through support (8), support (8) are including round bar base (81), round bar (82) and horizontal pole (83), the lower tip of round bar (82) is installed on round bar base (81), the one end of horizontal pole (83) is equipped with round bar chuck (84), the other end is equipped with camera chuck (85), install on the pole body of round bar (82) horizontal pole (83) cross pole (83) through round bar chuck (84), install on horizontal pole (83) camera (1) through camera chuck (85).

7. The apparatus of claim 6, wherein: two clamping blocks in the round rod clamping head (84) are clamped through a screw (86).