CN215985117U

CN215985117U - Optical module internal reference distortion correcting machine

Info

Publication number: CN215985117U
Application number: CN202122384042.8U
Authority: CN
Inventors: 吴鹅成; 李洪亮; 刘友亮
Original assignee: Jiangxi Phoenix Optical Technology Co ltd
Current assignee: Jiangxi Phoenix Optical Technology Co ltd
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2022-03-08
Anticipated expiration: 2031-09-29

Abstract

The utility model discloses an optical module internal reference distortion corrector, which aims to solve the problem that correction equipment in the current market cannot better correct an image due to the influence of factors such as radial direction, tangential direction, image focal length, image brightness and the like when correcting the image by distortion, and comprises a hollow machine body and a machine body door arranged on one side of the machine body and used for feeding and discharging materials, wherein a lens free switching mechanism used for freely switching postures after positioning an optical module is arranged in an inner cavity of the machine body; and the lens free switching mechanism is provided with a resolution test target assembly and a resolution test head which are matched with each other above and below the position corresponding to the optical module respectively, and is used for correcting the internal reference distortion of the optical module at multiple positions and multiple angles accurately. The method is particularly suitable for automatically correcting the internal reference distortion of the optical module, and has higher social use value and application prospect.

Description

Optical module internal reference distortion correcting machine

Technical Field

The utility model relates to the technical field of optical module correction, in particular to an internal reference distortion corrector for an optical module.

Background

The distortion rate of the optical lens needs to be further tested by the assembled optical lens module, the distortion rate obtained by the traditional manual distortion rate testing method is inaccurate and unstable by performing distortion correction on an image acquired manually, and an operation method is uncontrollable, so that the quality cannot be guaranteed and the error rate is high.

The first generation and the second generation equipment in the existing market solve the problem of automatic image acquisition for correcting the internal parameter distortion of the optical lens module, but neglect the influence of factors such as radial direction, tangential direction, image focal length, image brightness and the like when the distortion is corrected, and can not better correct the image.

Therefore, an optical module internal reference distortion corrector is provided.

SUMMERY OF THE UTILITY MODEL

It is an object of the present invention to solve or at least alleviate problems in the prior art.

The utility model provides an optical module internal reference distortion correcting machine, which comprises a machine body with a hollow interior and a machine body door arranged on one side of the machine body and used for feeding and discharging materials, wherein a lens free switching mechanism used for freely switching postures after the optical module is positioned is arranged in an inner cavity of the machine body;

the upper part and the lower part of the lens free switching mechanism corresponding to the position of the optical module are respectively provided with a resolution test target assembly and a resolution test head which are matched with each other and used for carrying out internal reference distortion correction on the optical module at a plurality of accurate positions and a plurality of angles, and the resolution test head is arranged below the position of the lens free switching mechanism corresponding to the optical module through a cable.

Optionally, resolution ratio test target assembly includes that the level arranges in the resolution ratio test target at organism top, and the edge of resolution ratio test target installs a plurality of target and removes the stabilizer blade, and the lower extreme that the target removed the stabilizer blade is connected with pneumatic lift pillar, and pneumatic lift pillar vertical is fixed in on the inner wall of organism.

Optionally, a distance sensor for detecting the lifting height of the resolution test target is installed at the edge of the top wall of the machine body.

Optionally, the lens free switching mechanism includes two bases which are perpendicularly arranged in a 90-degree cross manner, two slide rails are arranged on the upper end of each base in parallel along the length direction of each base, a horizontal moving frame is mounted on each slide rail, a servo lead screw assembly for driving the horizontal/longitudinal movement of each horizontal moving frame is mounted at the lower end of each horizontal moving frame, the base located above each horizontal moving frame is mounted on the horizontal moving frame below each horizontal moving frame, and a lens positioning tool for positioning the optical module is arranged on the horizontal moving frame located above each horizontal moving frame.

Optionally, the lower end of the lens positioning fixture is sequentially provided with a swing table and a radial/tangential swing base for driving the lens positioning fixture to swing radially/tangentially, and a rotating seat for driving the lens positioning fixture to rotate 360 degrees.

Optionally, the servo screw assembly is composed of a servo motor, a screw rod and a screw rod pair, the servo motor is mounted on the base, the screw rod is mounted at the output end of the servo motor, and the screw rod pair is arranged on the screw rod and connected with the lower end of the horizontal moving frame.

Optionally, a side door for maintenance is opened on the side wall of the machine body.

Optionally, a plurality of support legs for supporting are mounted at the lower end edge of the machine body.

Optionally, the optical module further comprises an industrial personal computer installed on the outer wall of the machine body through an installation frame and used for automatically controlling the operation of the optical module internal reference distortion correction machine.

The embodiment of the utility model provides an optical module internal reference distortion corrector, which has the following beneficial effects:

1. according to the utility model, the optical module is positioned through the lens positioning tool, then the lens free switching mechanism drives the positioned optical module to perform free motions such as transverse, longitudinal, 360-degree rotation, radial/tangential swing and the like, and the accurate multi-position and multi-angle internal parametric distortion correction of the optical module is realized by matching with the resolution test target assembly and the resolution test head.

2. The utility model utilizes a plurality of groups of servo motors to realize the accurate control and signal feedback of the free position of the optical module, and simultaneously cooperates with the synchronous moving imaging of the resolution test target, the real-time data monitoring, the acquisition and the storage of 360-degree images, thereby realizing the functions of multi-position, multi-angle synchronization and automatic correction.

Drawings

The above features, technical features, advantages and implementations of the reference distortion corrector in an optical module will be further described in the following detailed description of preferred embodiments in a clearly understandable manner with reference to the accompanying drawings.

FIG. 1 is a perspective view of the structure of the present invention;

FIG. 2 is a perspective view of the internal structure of the present invention;

FIG. 3 is a schematic structural diagram of a lens free switching mechanism according to the present invention;

fig. 4 is a schematic view of a partial structure of the head free switching mechanism according to the present invention.

In the figure: a machine body 10, a support leg 20, a front opening door 30, an industrial personal computer 40,

A resolution test target assembly 50, a resolution test target 501, target moving feet 502, a column 503, a distance sensor 504, a side door 60,

The system comprises a lens free switching mechanism 70, a base 701, a slide rail 702, a horizontal moving frame 703, a servo lead screw assembly 704, a lens positioning tool 705, a translation base 706, a rotating seat 707, a radial/tangential swinging base 708, a swinging table 709, a resolution test head 80 and an optical module a.

Detailed Description

The utility model will be further illustrated with reference to the following figures 1-4 and examples:

example 1

An optical module internal reference distortion corrector, referring to fig. 1-4, comprises a hollow body 10 and a body door 30 arranged at one side of the body 10 for feeding and discharging, wherein a lens free switching mechanism 70 for freely switching postures after positioning an optical module a is arranged in an inner cavity of the body 10;

the lens free switching mechanism 70 is provided with a resolution test target assembly 50 and a resolution test head 80 which are matched with each other above and below the position of the optical module a corresponding to the position, and is used for performing internal reference distortion correction on the optical module a at multiple positions and multiple angles accurately;

in this embodiment, the lens free switching mechanism 70 drives the positioned optical module a to perform free motions such as horizontal, longitudinal, 360-degree rotation and radial/tangential swing, and the resolution test target assembly 50 and the resolution test head 80 are matched to realize accurate multi-position and multi-angle correction of the internal parametric distortion of the optical module a, and the resolution test head 80 is vertically hung below the position of the optical module a corresponding to the lens free switching mechanism 70 through a reinforcing cable, so as to match the free movement switching of the lens by the lens free switching mechanism 70, so as to ensure that the resolution test head 80 forms a correction test on the resolution test target assembly 50 through the lens of the optical module a, and further realize accurate multi-position and multi-angle correction of the internal parametric distortion of the optical module a.

In this embodiment, as shown in fig. 1-2, the resolution test target assembly 50 includes a resolution test target 501 horizontally disposed on the top of the machine body 10, and a plurality of target moving support legs 502 are installed at corners of the resolution test target 501, and the lower ends of the target moving support legs 502 are connected with pneumatic lifting pillars 503, and the pneumatic lifting pillars 503 are vertically fixed on the inner wall of the machine body 10; a distance sensor 504 for detecting the lifting height of the resolution test target 501 is installed at the edge of the top wall of the machine body 10;

in this embodiment, the pneumatic lifting column 503 is controlled by the industrial personal computer 40, automatically controls the lifting movement of the resolution test target 501 to match the focusing required by the correction of the optical module a, and simultaneously performs 360-degree image acquisition by the arrangement of the distance sensor 504 and real-time data monitoring.

In this embodiment, as shown in fig. 3-4, the lens free switching mechanism 70 includes two bases 701 arranged perpendicularly and crosswise at 90 °, two sliding rails 702 are arranged in parallel at the upper end of the base 701 along the length direction thereof, a horizontal moving frame 703 is installed on the sliding rails 702, a servo lead screw assembly 704 for driving the horizontal/longitudinal movement of the horizontal moving frame 703 is installed at the lower end of the horizontal moving frame 703, the base 701 located above is installed on the horizontal moving frame 703 located below, and a lens positioning tool 705 for positioning the optical module a is installed on the horizontal moving frame 703 located above; a swing table 709 and a radial/tangential swing base 708 for driving the lens positioning fixture 705 to swing radially/tangentially and a rotating seat 707 for driving the lens positioning fixture 705 to rotate 360 degrees are sequentially installed at the lower end of the lens positioning fixture 705;

in this embodiment, two sets of horizontal moving frames 703 arranged in an intersecting manner can drive the lens positioning fixture 705 and the optical module a positioned on the lens positioning fixture 705 to move transversely or longitudinally, and the radial/tangential swing base 708 and the swing table 709 are matched to drive the lens positioning fixture 705 to swing radially and tangentially, the rotating base 707 drives the lens positioning fixture 705 to rotate 360 degrees, and the optical module a positioned by the combination of the movement in multiple directions can be freely switched, so that the image acquisition device is suitable for image acquisition at different angles (0-230 degrees), and multi-position, multi-angle synchronization and automatic correction function can be realized.

In this embodiment, as shown in fig. 3, the servo screw assembly 704 is composed of a servo motor, a screw rod and a screw rod pair, the servo motor is installed on the base 701, the screw rod is installed at an output end of the servo motor, the screw rod pair is arranged on the screw rod and connected to a lower end of the horizontal moving frame 703, and the lens positioning fixture 705 for positioning the optical module a can effectively perform horizontal or longitudinal horizontal movement by the drive of the servo motor, so as to achieve free switching of the position of the optical module a and perform parameter correction.

In this embodiment, as shown in fig. 1-2, the optical module further includes an industrial personal computer 40 mounted on an outer wall of the body 10 through a mounting bracket, and configured to automatically control the operation of the optical module internal reference distortion corrector.

Example 2

The present embodiment is different from embodiment 1 in that, as shown in fig. 1-2, a side door 60 for maintenance is opened on a side wall of the machine body 10; the lower end edge of the machine body 10 is provided with a plurality of support legs 20 for supporting, so that the convenience and the safety of the machine equipment are improved.

Other undescribed structures refer to example 1.

The operation steps of the optical module internal reference distortion corrector according to the above embodiment of the present invention are as follows:

s1, the operator opens the body door 30 to place the optical lens module a on the lens positioning fixture 705, and fix the optical lens module a;

s2, closing the machine body door 30, starting the machine equipment through a one-key starting button of the industrial personal computer 40, and automatically calling a correction program;

s3, the lens free switching mechanism 70 respectively performs free actions of transverse, longitudinal, 360-degree rotation and radial/tangential swing on the positioned optical lens module a, and realizes automatic internal reference distortion correction by matching with the resolution test target assembly 50 and the resolution test head 80;

s4, after the correction is finished, the real-time parameter monitoring picture of the industrial personal computer 40 displays the correction process, and the parameters/images are automatically saved;

s5, automatically restoring the machine equipment to the state to be tested, opening the machine body door 30 by an operator, taking down the optical lens module a to be placed in the specified material area, and placing a new optical lens module to be tested;

s6, looping steps S1-S5, and repeating the automatic correction of the internal reference distortion of the optical module a.

According to the optical module internal reference distortion corrector of the above embodiment of the present invention, the optical module a is positioned by the lens positioning tool 705, then the lens free switching mechanism 70 drives the positioned optical module a to perform free motions such as horizontal, longitudinal, 360 ° rotation and radial/tangential swing, etc., and the optical module a internal reference distortion correction is performed at precise multi-position and multi-angle by cooperating with the resolution test target assembly 50 and the resolution test head 80, and the precise control and signal feedback of the optical module a free position are realized by using multiple sets of servo motors, and simultaneously, the synchronous moving imaging of the resolution test target 501 is cooperated, the real-time data monitoring is performed, the 360 ° image acquisition and storage is performed, and the multi-position, multi-angle synchronization and automatic correction function are realized.

Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The optical module internal reference distortion corrector comprises a hollow machine body (10) and a machine body door (30) which is arranged on one side of the machine body (10) and used for feeding and discharging materials, and is characterized in that a lens free switching mechanism (70) used for freely switching postures of an optical module (a) after positioning is arranged in an inner cavity of the machine body (10);

the upper part and the lower part of the position of the free lens switching mechanism (70) corresponding to the optical module (a) are respectively provided with a resolution test target assembly (50) and a resolution test head (80) which are matched with each other and used for correcting internal reference distortion of the optical module (a) at multiple angles in accurate multiple positions, and the resolution test head (80) is arranged below the position of the free lens switching mechanism (70) corresponding to the optical module (a) through a cable.

2. The optical module internal reference distortion corrector of claim 1, wherein: resolution ratio test target assembly (50) arranges resolution ratio test target (501) in organism (10) top including the level, and resolution ratio test target (501) the edge install a plurality of target and remove stabilizer blade (502), and the lower extreme that the target removed stabilizer blade (502) is connected with pneumatic lift pillar (503), and pneumatic lift pillar (503) vertical fixation is on the inner wall of organism (10).

3. The optical module internal reference distortion corrector of claim 1, wherein: and a distance sensor (504) for detecting the lifting height of the resolution test target plate (501) is arranged at the edge of the top wall of the machine body (10).

4. The optical module internal reference distortion corrector of claim 1, wherein: the lens free switching mechanism (70) comprises two bases (701) which are vertically and crossly arranged by 90 degrees, two sliding rails (702) are arranged at the upper end of each base (701) in parallel along the length direction of each base, a horizontal moving frame (703) is installed on each sliding rail (702), a servo lead screw assembly (704) used for driving the horizontal/longitudinal movement of each horizontal moving frame (703) is installed at the lower end of each horizontal moving frame (703), the bases (701) located above are installed on the horizontal moving frames (703) below, and a lens positioning tool (705) used for positioning an optical module (a) is arranged on the horizontal moving frames (703) located above.

5. The optical module internal reference distortion corrector of claim 4, wherein: the lower end of the lens positioning tool (705) is sequentially provided with a swing table (709) and a radial/tangential swing base (708) which are used for driving the lens positioning tool (705) to swing radially/tangentially, and a rotating seat (707) which is used for driving the lens positioning tool (705) to rotate 360 degrees.

6. The optical module internal reference distortion corrector of claim 4, wherein: the servo lead screw assembly (704) is composed of a servo motor, a lead screw and a lead screw pair, the servo motor is installed on the base (701), the lead screw is installed at the output end of the servo motor, and the lead screw pair is arranged on the lead screw and connected with the lower end of the horizontal moving frame (703).

7. The optical module internal reference distortion corrector of claim 1, wherein: a side door (60) for overhauling is arranged on the side wall of the machine body (10).

8. The optical module internal reference distortion corrector of claim 1, wherein: the lower end edge of the machine body (10) is provided with a plurality of supporting feet (20) for supporting.

9. The optical module internal reference distortion corrector of claim 1, wherein: the optical module internal reference distortion correction machine is characterized by further comprising an industrial personal computer (40) which is arranged on the outer wall of the machine body (10) through a mounting frame and used for automatically controlling the operation of the optical module internal reference distortion correction machine.