CN217034296U

CN217034296U - Lens processing machine

Info

Publication number: CN217034296U
Application number: CN202123233962.6U
Authority: CN
Inventors: 黄国书; 潘炫尧
Original assignee: Usun Technology Co Ltd
Current assignee: Usun Technology Co Ltd
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-07-22
Anticipated expiration: 2031-12-21

Abstract

The utility model relates to a lens processing machine, a lens containing groove comprises a plurality of groove blocks, a plurality of locking holes are respectively arranged at the outer sides of the groove blocks in a concave manner, the plurality of locking holes are provided with narrow positions for the plurality of clamping blocks to penetrate, be locked and positioned, and extend towards the center of a working platform through a plurality of push rods, the inner walls of the plurality of groove blocks clamp the edge of a lens to be processed through magnetic attraction force to form the lens containing groove, the lens containing groove is combined at the top side of a bearing seat, the bearing seat moves for a distance in the vertical direction to ensure that the clamping blocks are unlocked from a wide position of the locking holes and move towards the outside, and after the plurality of push rods are all retracted to the original positions, the bearing seat moves to an alignment mechanism to detect so as to obtain data of light source intensity and the rotation direction of circularly polarized light, and the angle of the lens to be processed is corrected according to the plurality of data, so as to obtain the lens to be processed with corrected angle, and then the polarizing film is fed into a film sticking mechanism through the bearing seat in a sliding way on the track to stick and cover the polarizing film.

Description

Lens processing machine

Technical Field

The utility model relates to a lens processing machine, in particular to a lens processing machine which is characterized in that a plurality of push rods arranged on the periphery of a working platform extend out and clamp a lens to be processed by a plurality of groove blocks, and a rotatable lens accommodating groove is combined on the top side of a bearing seat to form a lens rotating and aligning mechanism, and the lens rotating and aligning mechanism carries out angle correction through detection light and test data of a light detector so as to achieve the purpose that the produced lens has an accurate polarization angle and polarization direction.

Background

With the continuous progress and innovation of the scientific and technological age, many things in daily life are changed significantly with the progress of science and technology, such as television or movie watched by people in daily life, the images displayed by the display screen are also converted from the earlier Two-dimensional planar image (2D planar image) into Three-dimensional stereoscopic image (3D stereoscopic image) to satisfy different feelings of stereoscopic image when people watch the images, and further, with the stereoscopic effect displayed by the Three-dimensional image (3D stereoscopic image) screen, many manufacturers use the 3D stereoscopic image to deduce various real Reality and Reality-like simulated image boundaries, such as Virtual Reality (VR) technology, Augmented Reality (AR) technology, Mixed Reality (MR) technology or real Reality (Reality, CR) technology, etc., which are applied to various games, televisions, movies, etc., and provide people with a visual impression of watching 3D stereoscopic images.

Regarding the presentation of the 3D stereoscopic image, the two-eye Parallax (Binocular Parallax) effect of people is utilized, and the two-eye Parallax represents the effect that the two eyes have slightly different contents of the seen image due to different positions and different visual angles, and finally the brain adjusts and fuses the different images seen by the two eyes, thereby generating the 3D stereoscopic image. As for the technology of Stereoscopic image presentation, the technology can be roughly classified into a glasses-wearing type (Stereoscopic) requiring glasses with special designs for viewing or an Auto Stereoscopic type (Auto Stereoscopic) requiring no glasses for naked eye viewing. The Glasses-wearing 3D stereoscopic image display technology is subdivided into various types, including Color difference type (Color Filter Glasses), polarization type (Polarizing Glasses), and active Shutter type (Shutter Glasses). As for Polarization 3D stereoscopic image technology (Polarization 3D), also called Polarization 3D stereoscopic image technology, the principle is to decompose the original image by using the principle that light has vibration direction, first divide the image into two groups of images of vertical polarized light and horizontal polarized light, then use the polarized lenses with different Polarization directions for the left and right lenses of the 3D glasses, so that the left and right eyes of the user can receive the two groups of images through the left and right lenses, and then synthesize them through the brain to form the stereoscopic image.

Moreover, the stereoscopic image watched by naked eyes is presented, and a user can watch the 3D stereoscopic image without wearing glasses with special design. For example: the Lenticular LENS Type stereoscopic imaging technology is a technology in which light beams of display information are respectively guided to the left and right eyes of a viewer by lenses, and the position and angle of a displayed stereoscopic image are limited, so that the viewing position and angle of the viewer are also limited. In contrast, the glasses type 3D stereoscopic image display technology using specially designed glasses has a better 3D stereoscopic image effect, is not easily limited by viewing position or angle, and is still used by most manufacturers. However, the polarized glasses must be detected and aligned to adjust the proper polarization angle and polarization direction of the left and right lenses to achieve a good 3D stereoscopic image display effect, otherwise, the polarized glasses are prone to be tilted due to the penetration axis (axis penetrating through the linearly polarized light) of the polarized glasses during use, and crosstalk (Cross-talk) occurs, which causes the brightness of the polarized glasses to be changed and darkened.

How to solve the problem and trouble of the difficult adjustment of the lens of the present polarized light type glasses, accurate polarized light angle and polarization direction, and the lens is easy to be because of penetrating the axle slope, take place the trouble and the disappearance of the crosstalk phenomenon, and must carry out the accurate and penetrate the axle correction process to the automation machine of producing the polarized light lens, effectively improve the production qualification rate of lens, it is the direction that the relevant firm who is engaged in this trade wants to study improvement urgently is located.

SUMMERY OF THE UTILITY MODEL

Therefore, in view of the above problems and disadvantages, the present inventors have collected relevant data and finally designed the lens processing machine through multi-evaluation and consideration.

In order to realize the purpose, the utility model adopts the technical scheme that:

a lens processing machine, comprising:

a working platform, in which a lens to be processed is arranged and moved by a preset transfer mechanism, and the working platform is provided with a containing space for accommodating a bearing seat;

the push rods are arranged on the periphery of the working platform, driven by a preset power device to extend and retract towards the working platform in the horizontal direction, and the tail ends of the push rods are respectively provided with a clamping block;

a lens containing groove, it includes a plurality of channel blocks and the outside of the channel block has a lockhole separately, and the channel block has magnetic attraction each other, the lockhole has a narrow place to support the latch block to wear to put and lock and position, and stretch out towards the center of the work platform through the push rod of the complex number, and the inner wall of the channel block clamps the edge of the lens to be processed and form the lens containing groove through the strength of magnetic attraction, and the lens containing groove is combined on the top side of the bearing seat, and the bearing seat moves a distance in the vertical direction so that the latch block unlocks from a wide place of the lockhole and moves towards the outside, and make the push rod of the complex number all retract to the home position, the bearing seat descends from the work platform and moves in the horizontal direction through a orbit; and

an aligning mechanism, which comprises an upper lens set and a lower lens set and an aligning space between the upper lens set and the lower lens set, wherein the aligning space is used for positioning the bearing seat moving along the rail edge, a detection unit, a polarization adjustment unit and a light detector are arranged in the upper lens set and the lower lens set, the light detector emits a detection light through the detection unit, the lens to be processed on the bearing seat is arranged between a first polarizer and a second polarizer of the polarization adjustment unit, the light detector receives the detection light passing through the lens to be processed to obtain data of a light source intensity and a rotation direction of circularly polarized light, and a rotating platform which is convexly extended and abutted to the bottom side of the lens to be processed is driven to rotate according to the plurality of data to carry out angle correction on the lens to be processed, so that the lens to be processed with angle correction is obtained, and then the polarizing film is fed into a film sticking mechanism through the bearing seat in a sliding way on the track to stick and cover the polarizing film.

The lens processing machine station is characterized in that the detection unit comprises a light source emitter arranged on the upper lens group and a light beam expander positioned at one side of the light source emitter.

The lens processing machine platform is characterized in that the polarized light adjusting unit comprises a first polarized light sheet arranged on the upper lens group and a wave plate which is positioned on one side of the first polarized light sheet and can perform phase delay, the lower lens group is provided with a second polarized light sheet, and the lens to be processed is positioned between the wave plate and the second polarized light sheet.

In the lens processing machine, the photodetector is disposed in the lower lens group, and a light receiving surface of the photodetector faces the second polarizer.

The lens processing machine platform, wherein, this lockhole outward appearance is wide T style of calligraphy narrow down in top.

The lens processing machine platform, wherein, this block of pulling is the T style of calligraphy structure of horizontal angle.

In the lens processing machine, the plurality of grooves are provided with magnetism, and at least one permanent magnet and a plurality of magnetic conductive metals are embedded in the grooves or are formed by a plurality of permanent magnets.

The lens processing machine station, wherein the preset power device is a pneumatic cylinder with an air supply device, an oil hydraulic cylinder with an oil supply device or a motor, and the push rod capable of reciprocating and stretching is arranged in the pneumatic cylinder, the oil hydraulic cylinder or the motor.

The lens processing machine platform is characterized in that the film sticking mechanism comprises a film sticking cover which is attached to the top side of the lens containing groove of the bearing seat, at least one polarizing film and an air channel which can apply positive pressure to the polarizing film are loaded in the film sticking cover, the joint of the film sticking cover and the lens containing groove is in a sealing state, a lateral vacuumizing tube can be attached to the outer wall surface of the lens containing groove, a heater arranged on one side of the film sticking cover is used for heating the polarizing film to soften the polarizing film after vacuumizing operation is simultaneously carried out on the upper side and the side of the lens containing groove containing the lens to be processed and the film sticking cover through a hollow air chamber in the vacuumizing tube and the air channel of the film sticking cover, and the softened polarizing film moves downwards and is attached to the upper surface of the lens to be processed through positive pressure air applied by the air channel, and then cutting waste materials of redundant polarizing films at the edge of the lens to be processed after cooling the polarizing film on the surface of the lens to be processed.

The push rod is extended out, the lens to be processed is clamped by the plurality of groove blocks, the rotatable lens accommodating groove is combined on the top side of the bearing seat to form a lens rotating and aligning mechanism, and the lens rotating and aligning mechanism to be processed is subjected to angle correction through the detection light and the test data of the light detector, so that the purpose that the produced lens has an accurate polarization angle and polarization direction can be achieved.

Drawings

Fig. 1 is a perspective view of a processing machine of the present invention.

Fig. 2 is a perspective view of the processing machine of the present invention from another view angle.

Fig. 3 is an exploded perspective view of a lens receiving groove of the present invention.

FIG. 4 is an internal structural view of the aligning mechanism of the present invention.

FIG. 5 is a detailed structure diagram of the film sticking mechanism of the present invention.

Fig. 6 is a diagram of a heater configuration according to the present invention.

FIG. 7 is a detailed structure diagram of the turntable of the present invention.

Description of the reference numerals: 1-a lens to be processed; 2-a working platform; 20-an accommodating space; 21-a push rod; 211-a catch block; 22-a bearing seat; 23-a lens receiving groove; 231-a groove block; 2310-keyhole; 2311-narrow; 2312-wide part; 24-a rotating table; 241-lens base; 242-screw; 25-track; 3-aligning mechanism; 30-alignment space; 31-upper lens group; 32-lower lens group; 33-a detection unit; 331-a light source emitter; 332-a beam expander; 34-a polarization adjustment unit; 341-first polarizer; 342-a wave plate; 343-a second polarizer; 35-a light detector; 351-a light receiving surface; 4-a film sticking mechanism; 41-film cover; 410-a gas channel; 42-evacuation tube; 420-a gas chamber; 43-Heater.

Detailed Description

To achieve the above objects and advantages, and in accordance with the purpose of the utility model, as embodied and broadly described herein, the following description is provided to explain the present invention in terms of its structure and function.

Referring to fig. 1 to 4 and fig. 7, each of which is a three-dimensional external view of a processing machine, a three-dimensional external view of another viewing angle of the processing machine, a three-dimensional exploded view of a lens accommodating groove, an internal structure view of an alignment mechanism, and a detailed structure view of a turntable, as can be clearly seen from the drawings, the processing machine of the present invention mainly includes: a lens 1 to be processed, a working platform 2, an alignment mechanism 3 and a film sticking mechanism 4, and the details of the above structure are as follows:

a lens 1 to be processed is disposed inside a working platform 2 and moved by a predetermined moving mechanism (not shown, a robot with a vacuum chuck), and the working platform 2 has a receiving space 20 for receiving a carrying seat 22.

The push rods 21 are disposed around the working platform 2, the push rods 21 are driven by a predetermined power device (not shown) to move in a telescopic manner towards the working platform 2 in a horizontal direction, and the ends of the push rods 21 are respectively provided with a locking block 211. The plurality of push rods 21 shown in the drawings are four push rods 21, and the adjacent push rods 21 have an included angle of ninety degrees, but the utility model is not limited thereto, and more than two push rods 21 can be implemented and are within the scope of protection. The predetermined power device is a pneumatic cylinder with an air supply device, an oil cylinder with an oil supply device, or a motor, and the push rod 21 capable of reciprocating is disposed in the pneumatic cylinder, the oil cylinder, or the motor.

A lens accommodation groove 23 including a plurality of groove blocks 231, a locking hole 2310 being respectively formed on the outer sides of the plurality of groove blocks 231, the plurality of groove blocks 231 having mutually attractive magnetism, the plurality of locking holes 2310 have a narrow portion 2311 for the plurality of locking blocks 211 to pass through, be locked and positioned, and extends out toward the center of the working platform 2 through the plurality of push rods 21, and the inner walls of the plurality of groove blocks 231 clamp the edge of the lens 1 to be processed through magnetic attraction force to form the lens accommodating groove 23, the lens accommodation groove 23 is combined with the top side of the carrying base 22 through a lens base 241 located above the rotation base 24, the lens 1 to be processed is placed on the lens base 241, and the carrying base 22 moves a distance in the vertical direction to unlock the locking block 211 from a wide portion 2312 of the locking hole 2310 and move outward, and after the plurality of push rods 21 are all retracted to the original position, the carriage 22 descends from the working platform 2 and moves in a horizontal direction through a rail 25. The plurality of slots 231 are formed by embedding at least one permanent magnet (made of neodymium-iron-boron material) and a plurality of magnetic conductive metals (such as iron, nickel, stainless steel material) or a plurality of permanent magnets.

An alignment mechanism 3 includes an upper lens set 31 and a lower lens set 32 and an alignment space 30 between the two, the alignment space 30 is used for positioning the bearing seat 22 moving along the rail 25, a detecting unit 33, a polarization adjusting unit 34 and a light detector 35 are arranged in the upper lens set 31 and the lower lens set 32, the light detector 35 emits a detecting light through the detecting unit 33, the lens 1 to be processed on the bearing seat 22 is arranged between a first polarizer 341 and a second polarizer 343 of the polarization adjusting unit 34, the light detector 35 receives the detecting light passing through the lens 1 to be processed to obtain data of a light source intensity and a rotation direction of circularly polarized light, and the bearing seat 22 is driven to protrude and abut against a rotating platform 24 at the bottom side of the lens 1 to be processed to rotate according to the plurality of data to perform the angle correction of the lens 1 to be processed, the lens 1 to be processed with the angle correction obtained is then transferred to a film sticking mechanism 4 for sticking a polarizing film by sliding on the rail 25 through the carrying seat 22.

The locking hole 2310 is T-shaped with a wide top and a narrow bottom, and the corresponding insertion of the locking block 211 is T-shaped with a horizontal angle.

The detecting unit 33 includes a light source emitter 331 disposed on the upper mirror assembly 31 and a beam expander 332 disposed at one side of the light source emitter 331. The polarization adjustment unit 34 includes the first polarizer 341 disposed on the upper lens group 31 and a wave plate 342 located on one side of the first polarizer 341 and capable of performing phase retardation, and the second polarizer 343 is disposed on the lower lens group 32, so that the lens 1 to be processed is located between the wave plate 342 and the second polarizer 343. The photodetector 35 is disposed in the lower mirror group 32 and has a light receiving surface 351 facing the second polarizer 343.

Please refer to fig. 5 and fig. 6, which are a detailed structure diagram and a heater structure diagram of the film attaching mechanism of the present invention, wherein the film attaching mechanism 4 includes a film attaching cover 41 attached to the top side of the lens receiving groove 23 of the carrying seat 22, the film attaching cover 41 is internally loaded with at least one polarizing film (not shown) and an air channel 410 capable of applying positive pressure to the polarizing film, and the joint of the film attaching cover 41 and the lens receiving groove 23 is in a sealed state, and the outer wall surface of the lens receiving groove 23 is further provided with a lateral vacuum tube 42 for attaching, and the polarizing film is heated by a heater 43 disposed at one side of the film attaching cover 41 through a hollow air chamber 420 in the vacuum tube 42 and the air channel 410 of the film attaching cover 41 after the lens receiving groove 23 and the film attaching cover 41 containing the lens 1 to be processed are simultaneously vacuumized from the top and the side, so as to soften the polarizing film, and the softened polarizing film sheet moves downwards and is attached to the upper surface of the lens 1 to be processed by applying positive pressure gas to the gas channel 420, and after the polarizing film sheet on the surface of the lens 1 to be processed is cooled, the waste material of the redundant polarizing film sheet at the edge of the lens 1 to be processed is cut, so that all processing procedures of the lens are completed.

When the processing machine of the present invention is actually operated, a pre-set transfer mechanism, such as a robot arm with a vacuum chuck, first absorbs a lens 1 to be processed, and moves the lens to the working platform 2 of the processing machine, and the bearing seat 22 is located at the bottom side of the accommodating space 20 of the working platform 21. The locking blocks 211 arranged at the end of the plurality of push rods 21 around the working platform 2 are each positioned with a groove 231 and driven by a preset power device to move in a telescopic manner towards the working platform 2 in a horizontal direction, the inner wall of the groove 231 at the front end of each push rod 21 clamps the edge of the lens 1 to be processed through magnetic attraction force and forms a lens accommodating groove 23, the lens accommodating groove 23 is combined with the top side of the bearing seat 22 through a lens seat 241 arranged above the rotating seat 24, the lens 1 to be processed is placed on the lens seat 241, the bottom side of the rotating seat 24 is connected with a screw 242 (as shown in figure 7), the screw 242 is connected with a preset power device or a preset transmission mechanism (not shown) to drive the rotating seat 24 to rotate, and the bearing seat 22 moves downwards for a distance so that the locking blocks 211 move from the narrow part 3111 to the wide part 2312 of the locking hole 2310 to unlock and move outwards, and the plurality of push rods 21 are all retracted to the original positions, the carrier 22 descends from the working platform 2 and moves to the alignment space 30 of the alignment mechanism 3 in the horizontal direction through the rail 25 for positioning, the detection unit 33, the polarization adjustment unit 34 and the optical detector 35 are disposed in the upper lens group 31 and the lower lens group 32, the optical detector 35 emits detection light through the detection unit 33 and places the lens 1 to be processed on the carrier 22 between the first polarizer 341 and the second polarizer 343 of the polarization adjustment unit 34, the optical detector 35 receives the detection light passing through the lens 1 to be processed to obtain data of a light source intensity and a rotation direction of circularly polarized light, and drives the rotary table 24 of the carrier 22 to rotate according to the data to perform angle correction of the lens 1 to be processed, the lens 1 to be processed with angle correction is obtained, and then the carrier 22 slides on the rail 25 and is sent into a film pasting mechanism 4 for pasting of the polarizing film, the film attaching cover 41 of the film attaching mechanism 4 is attached to the top side of the lens receiving groove 23, the joint between the film attaching cover 41 and the lens receiving groove 23 is in a close fit state, the outer wall surface of the lens receiving groove 23 is attached to the vacuum tube 42, the lens receiving groove 23 and the film attaching cover 41 are simultaneously vacuumized by the vacuum tube 42, the polarizing film is heated by the heater 43 to be softened, the softened polarizing film moves downwards and is attached to the upper surface of the lens 1 to be processed by applying positive pressure gas to the gas channel 420, and after the polarizing film on the surface of the lens 1 to be processed is cooled, waste materials of redundant polarizing films at the edge of the lens 1 to be processed are cut, so that all processing procedures of the lens are completed.

The main feature of the present invention is that the lens 1 to be processed is clamped by the plurality of push rods 21 extending from the periphery of the working platform and the plurality of groove blocks 231, and the rotatable lens receiving groove 23 is combined on the top side of the bearing seat 22 to form a lens rotation alignment mechanism, and the lens rotation alignment mechanism performs an angle correction through the detected light and the test data of the optical detector 35, so as to achieve the purpose that the produced lens has a precise polarization angle and polarization direction. The utility model is applied to the field of polarized lens manufacture and has excellent practicability.

The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims

1. A lens processing machine, comprising:

an aligning mechanism, which comprises an upper lens set and a lower lens set and an aligning space between the upper lens set and the lower lens set, wherein the aligning space is used for positioning the bearing seat moving along the rail edge, a detection unit, a polarized light adjusting unit and a light detector are arranged in the upper lens set and the lower lens set, the light detector emits a detection light through the detection unit, and the lens to be processed on the bearing seat is arranged between a first polarized light sheet and a second polarized light sheet of the polarized light adjusting unit.

2. The apparatus of claim 1, wherein the detection unit comprises a light source emitter disposed on the upper lens group and a beam expander disposed at a side of the light source emitter.

3. The apparatus of claim 1, wherein the polarization adjustment unit comprises a first polarizer disposed in the upper lens group and a wave plate disposed at one side of the first polarizer and capable of phase retardation, the second polarizer is disposed in the lower lens group, and the lens to be processed is disposed between the wave plate and the second polarizer.

4. The apparatus of claim 1, wherein the photodetector is disposed in the lower mirror assembly and a light-receiving surface of the photodetector faces the second polarizer.

5. The apparatus of claim 1, wherein the lock hole is substantially T-shaped with a wide top and a narrow bottom.

6. The apparatus of claim 1, wherein the locking block is in a T-shape with a horizontal angle.

7. The apparatus of claim 1, wherein the plurality of grooves are magnetized by at least one permanent magnet and a plurality of magnetic conductive metals embedded therein, or by a plurality of permanent magnets.

8. The lens processing machine of claim 1, wherein the predetermined power device is a pneumatic cylinder with an air supply device, a hydraulic cylinder with an oil supply device, or a motor, and the push rod capable of reciprocating is disposed in the pneumatic cylinder, the hydraulic cylinder, or the motor.

9. The apparatus of claim 1, wherein the film-attaching mechanism comprises a film-attaching cover attached to the top side of the lens-receiving cavity of the carrier, the film-attaching cover having at least one polarizing film and a gas channel for applying positive pressure to the polarizing film, the film-attaching cover being in close contact with the lens-receiving cavity, and an outer wall of the lens-receiving cavity being adapted to be attached to a lateral evacuation tube.