CN107277334B - Industrial lens rapid focusing and decentering device and debugging method thereof - Google Patents
Industrial lens rapid focusing and decentering device and debugging method thereof Download PDFInfo
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- CN107277334B CN107277334B CN201710656920.2A CN201710656920A CN107277334B CN 107277334 B CN107277334 B CN 107277334B CN 201710656920 A CN201710656920 A CN 201710656920A CN 107277334 B CN107277334 B CN 107277334B
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- thread adjusting
- adjusting sleeve
- external thread
- lens
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/023—Mountings, adjusting means, or light-tight connections, for optical elements for lenses permitting adjustment
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/02—Bodies
- G03B17/12—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Optics & Photonics (AREA)
- Structure And Mechanism Of Cameras (AREA)
- Lens Barrels (AREA)
Abstract
The invention provides a device for quickly focusing and decentering an industrial lens, and also provides a debugging method adopting the device, which ensures that the focusing and decentering of the industrial lens are time-saving and labor-saving, and are convenient and quick to adjust. The camera lens comprises an external thread adjusting sleeve and a lens connecting seat, wherein one end of the external thread adjusting sleeve is in threaded connection with a corresponding internal thread connector of a camera, the other end of the external thread adjusting sleeve is inserted into a corresponding mounting hole at one end of the lens connecting seat, the end wall of the other end of the external thread adjusting sleeve is jacked on an inner side supporting table surface of the mounting hole, the other end of the lens connecting seat is in threaded connection with an industrial lens, a plurality of radial first jackscrew holes are formed in the outer wall of the mounting hole at one end of the lens connecting seat, the first jackscrew threads are inserted into the corresponding first jackscrew holes, and after adjustment is completed, the inner end of the first jackscrew is tightly pressed on the outer wall of the other end of the external thread adjusting sleeve.
Description
Technical Field
The invention relates to the technical field of industrial lens installation, in particular to a device for quickly focusing and decentering an industrial lens, and also provides a debugging method adopting the device.
Background
After the industrial lens and the image detector are assembled, the distance between the lens and the camera is the back focal length of the lens in theory design, the center of the detector chip coincides with the center of the lens, and the set optimal image effect can be achieved by adjusting the working distance of the lens. In fact, due to the deviation of the chip position of the image detector, the distance between the lens and the image detector needs to be adjusted according to the working distance of the lens, and meanwhile, the camera needs to be adjusted to enable the center of the chip to coincide with the center of the lens, at present, the lens realizes a focusing function by providing gaskets with different thicknesses, and the center of the chip coincides with the center of the lens by adjusting an interface device (one end of the lens is screwed with the camera through threads, the outer ring of one end of the lens is smooth, a gap of 0.1-0.2mm is reserved at the joint of the lens and the lens, and a jackscrew is used for fixing the lens). If the chip deviates from the back focal plane of the lens, the focusing operation can be completed by repeatedly taking and loading the camera, and the debugging device is time-consuming and labor-consuming and brings a lot of inconvenience to the assembly and the debugging.
Disclosure of Invention
Aiming at the problems, the invention provides a device for quickly focusing and decentering an industrial lens, which ensures that the focusing and decentering of the industrial lens are time-saving and labor-saving, and is convenient and quick to adjust.
An industrial lens device for quick focusing and eccentric adjustment, which is characterized in that: the camera lens comprises an external thread adjusting sleeve and a lens connecting seat, wherein one end of the external thread adjusting sleeve is in threaded connection with a corresponding internal thread connector of a camera, the other end of the external thread adjusting sleeve is inserted into a corresponding mounting hole at one end of the lens connecting seat, the end wall of the other end of the external thread adjusting sleeve is jacked on an inner side supporting table surface of the mounting hole, the other end of the lens connecting seat is in threaded connection with an industrial lens, a plurality of radial first jackscrew holes are formed in the outer wall of the mounting hole at one end of the lens connecting seat, the first jackscrew threads are inserted into the corresponding first jackscrew holes, and after adjustment is completed, the inner end of the first jackscrew is tightly pressed on the outer wall of the other end of the external thread adjusting sleeve.
It is further characterized by: the camera also comprises an internal thread adjusting ring, the external thread adjusting sleeve is connected with the internal thread adjusting ring in a threaded manner, the end face of the internal thread adjusting ring facing the camera in a focusing state is tightly attached to the corresponding end face of the internal thread connector, a plurality of radial second jackscrew holes are uniformly distributed on the outer ring surface of the internal thread adjusting ring, the second jackscrews are inserted into the corresponding second jackscrew holes, and after focusing is finished, the inner ends of the second jackscrews are tightly pressed on the outer wall of the external thread adjusting sleeve;
the lens connecting seat is characterized by further comprising an internal thread sealing ring, the internal thread sealing ring is connected to the external thread adjusting sleeve in a threaded manner, the end face of the internal thread sealing ring, facing the industrial lens, is tightly attached to the corresponding end face of the mounting hole of the lens connecting seat, a plurality of radial third jackscrew holes are uniformly distributed on the outer ring face of the internal thread sealing ring, the third jackscrews are inserted into the corresponding third jackscrew holes, and the inner ends of the third jackscrews are tightly pressed on the outer wall of the external thread adjusting sleeve.
A rapid focusing and eccentric adjusting method for an industrial lens is characterized in that: the method comprises the steps of connecting an internal thread adjusting ring and an internal thread sealing ring on an external thread adjusting sleeve in a threaded manner in advance, connecting a corresponding internal thread connecting head of a camera with one end of the external thread adjusting sleeve in a threaded manner, inserting the other end of the external thread adjusting sleeve into a mounting hole at one end of a lens connecting seat, and fixing the internal thread sealing ring through a third thimble to enable the other end of the external thread adjusting sleeve and the lens connecting seat to be kept axially fixed; and then focusing is carried out by adjusting the axial positions of the internal thread adjusting ring and the camera relative to the external thread adjusting sleeve, the imaging clear effect of the calibration plate is observed through image software or the detector with software to judge whether the imaging clear effect is at a proper position, the axial position of the camera is fixed by locking the internal thread connector of the camera and the internal thread adjusting ring, the axial position locking of the camera is completed by pushing the second jackscrew against the outer wall of the external thread adjusting sleeve, focusing is completed, afterwards, the eccentric adjustment is carried out by carrying out radial rotation on the external thread adjusting sleeve relative to the mounting hole, the coincidence of the chip center and the industrial lens center is adjusted by calibrating the plate image through the external thread adjusting sleeve, and after the coincidence is judged, the external thread adjusting sleeve and the lens connecting seat are locked through the first jackscrew.
After the structure of the invention is adopted, the working distance is adjusted to the working distance of the industrial lens, the axial position of the camera relative to the external thread adjusting sleeve is used for focusing, after focusing is finished, the external thread adjusting sleeve is used for radial rotation relative to the mounting hole for eccentric adjustment, and after eccentric adjustment, the external thread adjusting sleeve and the lens connecting seat are locked through the first jackscrew; in the focusing and eccentric adjusting process, only corresponding parts are required to be rotated, so that the focusing and eccentric adjusting of the industrial lens are time-saving and labor-saving, and the industrial lens is convenient and quick to adjust.
Drawings
FIG. 1 is a schematic cross-sectional view of an industrial lens quick focusing and decentering apparatus of the present invention;
the names corresponding to the serial numbers in the figures are as follows:
the lens comprises an external thread adjusting sleeve 1, a lens connecting seat 2, a camera 3, an internal thread connector 4, an inner side supporting table top 5, a mounting hole 6, an industrial lens 7, a first jackscrew hole 8, a first jackscrew 9, an internal thread adjusting ring 10, a second jackscrew hole 11, a second jackscrew 12, an internal thread sealing ring 13, a third jackscrew hole 14 and a third jackscrew 15.
Detailed Description
An industrial lens quick focusing and decentering device is shown in fig. 1: the camera lens comprises an external thread adjusting sleeve 1 and a lens connecting seat 2, wherein one end of the external thread adjusting sleeve 1 is in threaded connection with a corresponding internal thread connector 4 of a camera 3, the other end of the external thread adjusting sleeve 1 is inserted into a corresponding mounting hole 6 at one end of the lens connecting seat 2, the end wall of the other end of the external thread adjusting sleeve 1 is jacked onto an inner side supporting table top 5 of the mounting hole 6, the other end of the lens connecting seat 2 is in threaded connection with an industrial lens 7, a plurality of radial first jackscrew holes 8 are formed in the outer wall of the mounting hole 6 at one end of the lens connecting seat 2, the first jackscrews 9 are in threaded connection with the corresponding first jackscrew holes 8, and after adjustment is completed, the inner ends of the first jackscrews 9 are tightly pressed on the outer wall of the other end of the external thread adjusting sleeve 1.
The camera comprises a camera body, a camera 3 and an external screw thread adjusting sleeve 1, and is characterized by further comprising an internal screw thread adjusting ring 10, wherein the internal screw thread adjusting ring 10 is connected to the external screw thread adjusting sleeve 1 in a screw thread manner, the end face, facing the camera 3, of the internal screw thread adjusting ring 10 in a focusing state is tightly attached to the corresponding end face of the internal screw thread connector 4, a plurality of radial second top screw holes 11 are uniformly distributed on the external ring surface of the internal screw thread adjusting ring 10, second top screws 12 are inserted into the corresponding second top screw holes 11, and after focusing is finished, the inner ends of the second top screws 12 are tightly pressed on the outer wall of the external screw thread adjusting sleeve 1;
the lens connecting seat further comprises an internal thread sealing ring 13, the internal thread sealing ring 13 is connected to the external thread adjusting sleeve 1 in a threaded manner, the end face of the internal thread sealing ring 13, which faces the industrial lens 7, is tightly attached to the corresponding end face of the mounting hole 6 of the lens connecting seat 2, a plurality of radial third top thread holes 14 are uniformly distributed on the outer ring surface of the internal thread sealing ring 13, third top threads 15 are inserted into the corresponding third top thread holes 14, and the inner end of the third top threads 15 is tightly pressed on the outer wall of the external thread adjusting sleeve 1;
in a specific embodiment, three radial first top thread holes 8 are arranged on the outer wall of the mounting hole 6 at one end of the lens connecting seat 2; two radial second top thread holes 11 are uniformly distributed on the outer ring surface of the internal thread adjusting ring 10; three radial third top thread holes 14 are uniformly distributed on the outer ring surface of the internal thread sealing ring 13.
An industrial lens rapid focusing and decentering debugging method comprises the following steps: the method comprises the steps of connecting an internal thread adjusting ring 10 and an internal thread sealing ring 13 on an external thread adjusting sleeve 1 in advance, connecting a corresponding internal thread connector 4 of a camera 3 with one end of the external thread adjusting sleeve 1 in a threaded manner, inserting the other end of the external thread adjusting sleeve 1 into a mounting hole 6 at one end of a lens connecting seat 2, and fixing the internal thread sealing ring 13 through a third thimble 15 to enable the other end of the external thread adjusting sleeve 1 and the lens connecting seat 2 to be kept in axial position fixation; and then focusing is carried out by adjusting the axial positions of the internal thread adjusting ring 10 and the camera 3 relative to the external thread adjusting sleeve 1, whether the proper position is reached is judged by observing the imaging clear effect of the calibration plate through image software or self-contained software of a detector, the axial position of the camera is fixed by locking the internal thread connector 4 of the camera 3 and the internal thread adjusting ring 10, the axial position locking of the camera 3 is finished by supporting the outer wall of the external thread adjusting sleeve 1 through the second jackscrew 12, focusing is finished, afterwards, the eccentric adjustment is carried out by carrying out radial rotation on the external thread adjusting sleeve 1 relative to the mounting hole 6, the coincidence between the center of a chip and the center of the industrial lens 7 is adjusted by calibrating the position of the external thread adjusting sleeve, and after the coincidence is judged, the external thread adjusting sleeve 1 and the lens connecting seat 2 are locked through the first jackscrew 9.
The beneficial effects are as follows: the adjusting internal thread adjusting ring and the screwing camera realize the purpose of focusing relative to the axial position of the external thread adjusting sleeve, and after focusing is finished, the chip center and the lens center are adjusted to coincide by adjusting the radial rotation of the external thread adjusting sleeve relative to the mounting hole, so that the purpose of eccentric adjustment is achieved.
The foregoing describes the embodiments of the present invention in detail, but the description is only a preferred embodiment of the invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications made in accordance with the scope of the present invention shall fall within the scope of the present patent.
Claims (2)
1. An industrial lens device for quick focusing and eccentric adjustment, which is characterized in that: the camera lens comprises an external thread adjusting sleeve and a lens connecting seat, wherein one end of the external thread adjusting sleeve is in threaded connection with a corresponding internal thread connector of a camera, the other end of the external thread adjusting sleeve is inserted into a corresponding mounting hole at one end of the lens connecting seat, the end wall of the other end of the external thread adjusting sleeve is propped against an inner side supporting table board of the mounting hole, the other end of the lens connecting seat is in threaded connection with an industrial lens, a plurality of radial first jackscrew holes are formed in the outer wall of the mounting hole at one end of the lens connecting seat, the first jackscrew threads are inserted into the corresponding first jackscrew holes, and after adjustment is finished, the inner end of the first jackscrew is tightly pressed against the outer wall of the other end of the external thread adjusting sleeve;
the camera also comprises an internal thread adjusting ring, the external thread adjusting sleeve is connected with the internal thread adjusting ring in a threaded manner, the end face of the internal thread adjusting ring facing the camera in a focusing state is tightly attached to the corresponding end face of the internal thread connector, a plurality of radial second jackscrew holes are uniformly distributed on the outer ring surface of the internal thread adjusting ring, the second jackscrews are inserted into the corresponding second jackscrew holes, and after focusing is finished, the inner ends of the second jackscrews are tightly pressed on the outer wall of the external thread adjusting sleeve;
the lens connecting seat is characterized by further comprising an internal thread sealing ring, wherein the internal thread sealing ring is connected to the external thread adjusting sleeve in a threaded manner, the end face of the internal thread sealing ring, which faces towards the industrial lens, is tightly attached to the corresponding end face of the mounting hole of the lens connecting seat, a plurality of radial third top thread holes are uniformly distributed on the outer ring face of the internal thread sealing ring, third top threads are inserted into the corresponding third top thread holes, and the inner end of each third top thread is tightly pressed on the outer wall of the external thread adjusting sleeve;
focusing is carried out by adjusting the axial positions of the internal thread adjusting ring and the camera relative to the external thread adjusting sleeve, the axial positions of the camera are fixed by locking the internal thread connector and the internal thread adjusting ring of the camera, the axial position locking of the camera is completed by propping the outer wall of the external thread adjusting sleeve through the second jackscrew, the eccentric is adjusted by radial rotation of the external thread adjusting sleeve relative to the mounting hole, and the external thread adjusting sleeve and the lens connecting seat are locked through the first jackscrew.
2. The industrial lens rapid focusing and decentering debugging method is applied to the industrial lens rapid focusing and decentering device according to claim 1, and is characterized in that: the method comprises the steps of connecting an internal thread adjusting ring and an internal thread sealing ring on an external thread adjusting sleeve in a threaded manner in advance, connecting a corresponding internal thread connecting head of a camera with one end of the external thread adjusting sleeve in a threaded manner, inserting the other end of the external thread adjusting sleeve into a mounting hole at one end of a lens connecting seat, and fixing the internal thread sealing ring through a third thimble to enable the other end of the external thread adjusting sleeve and the lens connecting seat to be kept axially fixed; and then focusing is carried out by adjusting the axial positions of the internal thread adjusting ring and the camera relative to the external thread adjusting sleeve, the imaging clear effect of the calibration plate is observed through image software or the detector with software to judge whether the imaging clear effect is at a proper position, the axial position of the camera is fixed by locking the internal thread connector of the camera and the internal thread adjusting ring, the axial position locking of the camera is completed by pushing the second jackscrew against the outer wall of the external thread adjusting sleeve, focusing is completed, afterwards, the eccentric adjustment is carried out by carrying out radial rotation on the external thread adjusting sleeve relative to the mounting hole, the coincidence of the chip center and the industrial lens center is adjusted by calibrating the plate image through the external thread adjusting sleeve, and after the coincidence is judged, the external thread adjusting sleeve and the lens connecting seat are locked through the first jackscrew.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710656920.2A CN107277334B (en) | 2017-08-03 | 2017-08-03 | Industrial lens rapid focusing and decentering device and debugging method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710656920.2A CN107277334B (en) | 2017-08-03 | 2017-08-03 | Industrial lens rapid focusing and decentering device and debugging method thereof |
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| Publication Number | Publication Date |
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| CN107277334A CN107277334A (en) | 2017-10-20 |
| CN107277334B true CN107277334B (en) | 2023-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710656920.2A Active CN107277334B (en) | 2017-08-03 | 2017-08-03 | Industrial lens rapid focusing and decentering device and debugging method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111580336B (en) * | 2020-04-21 | 2022-06-07 | 福建福光股份有限公司 | Focusable camera inspection jig |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM251156U (en) * | 2003-11-25 | 2004-11-21 | Hon Hai Prec Ind Co Ltd | Lens module |
| CN202815292U (en) * | 2012-08-28 | 2013-03-20 | 凤凰光学(广东)有限公司 | CCTV fixed-focus lens being able to adjust core shift among groups |
| JP2015191141A (en) * | 2014-03-28 | 2015-11-02 | キヤノン株式会社 | Lens device and imaging device with the same |
| CN104076478B (en) * | 2014-07-03 | 2016-02-10 | 福建福光股份有限公司 | Space Object Detection lens focusing system |
| CN204451123U (en) * | 2015-02-13 | 2015-07-08 | 浙江舜宇光学有限公司 | A kind of adjustment terminal self-checking device and regulating system thereof |
| CN207117782U (en) * | 2017-08-03 | 2018-03-16 | 苏州天准科技股份有限公司 | A kind of industrial lens are quickly focused and the device of eccentric |
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