CN103454066B - Focal length of convex lens pick-up unit - Google Patents
Focal length of convex lens pick-up unit Download PDFInfo
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- CN103454066B CN103454066B CN201210183003.4A CN201210183003A CN103454066B CN 103454066 B CN103454066 B CN 103454066B CN 201210183003 A CN201210183003 A CN 201210183003A CN 103454066 B CN103454066 B CN 103454066B
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- infrared
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Abstract
The invention belongs to field of optical detection, particularly relate to a kind of focal length of convex lens pick-up unit, for judging whether the real focal length of convex lens to be measured is within the scope of the standard focal length of standard convex lens, this device comprises the light-emitting component that can send Infrared, the testing cassete of convex lens can be fixed and can gather and show the image acquisition module of image that described Infrared formed, described image acquisition module and described light-emitting component lay respectively at the both sides of described convex lens, described light-emitting component to be fixed in described testing cassete and to be positioned at the photocentre place of the standard convex lens on described testing cassete, light-emitting component is gathered through image formed by convex lens to be measured by image acquisition module, thus judge that the focal length of convex lens to be measured is whether in the scope of standard focal length, simple and convenient, avoid complexity debugging when convex lens being assembled into infrared eye, substantially increase the packaging efficiency of infrared eye.
Description
Technical field
The invention belongs to field of optical detection, particularly relate to a kind of focal length of convex lens pick-up unit.
Background technology
The only scattered light that in infrared beam interruption detector, infrared transmitting tube sends, in order to make the farther of its optical radiation sent, also needs this scattered light to become parallel beam.
At present, normally utilize optics convex lens that scattered light is focused into parallel beam, the scattered light that the focal plane (focus position) infrared transmitting tube being placed in convex lens makes infrared transmitting tube send becomes parallel beam through convex lens focus.In actual production, after convex lens injection molded, size has deviation, thus causes focal length of convex lens different.Like this, when assembling active external detector product, need to carry out focusing operation at special dark place, specialized equipment is utilized to catch infrared transmitting tube imaging, mobile power valve distance, make power valve be placed on convex lens focal plane, when scattered infrared light becomes parallel infrared beam, then with electric soldering iron, power valve is fixedly welded on pcb board.Like this, focusing operation will be carried out in specific environment, has higher technical requirement and operating speed is comparatively slow to operating personnel, and packaging efficiency is low.
Summary of the invention
The object of the invention is to the defect for overcoming prior art, providing a kind of focal length of convex lens pick-up unit, being intended to solve in prior art size after convex lens injection molded has deviation, when being assembled into infrared beam interruption detector, need special assembling environment, complicated operation, the problem that packaging efficiency is low.
Technical scheme of the present invention is: focal length of convex lens pick-up unit, for judging whether the real focal length of convex lens to be measured is within the scope of the standard focal length of standard convex lens, this device comprises the light-emitting component that can send Infrared, the testing cassete of convex lens can be fixed and can gather and show the image acquisition module of the image that described Infrared is formed through described convex lens, described image acquisition module and described light-emitting component lay respectively at the both sides of described convex lens, described light-emitting component to be fixed in described testing cassete and with the photocentre of the standard convex lens be fixed on described testing cassete at a distance of a standard focal length.
Further, described image acquisition module comprise open wide a side camera bellows, for gather through described convex lens Infrared form the black and white display of the image that the B/W camera of image and the Infrared for showing through described convex lens are formed, described B/W camera is arranged in camera bellows, is electrically connected with described black and white display.
Further, described B/W camera and described testing cassete are at a distance of 590-600cm, and the bottom of described B/W camera and described camera bellows is at a distance of 70-80cm, and the length direction of described camera bellows is more than or equal to 500cm.
Again further, described light-emitting component is infrared transmitting tube.
Particularly, described testing cassete is provided with the fixed orifice for installing described convex lens, and described fixed orifice runs through and is arranged on a lateral wall of described testing cassete.
More specifically, described fixed orifice is a shoulder hole.
Further, described testing cassete is provided with the light hole for fixing light-emitting component, the contiguous described fixed orifice of described light hole with described fixed orifice on same center line.
Again further, described testing cassete adopts PVC material or bakelite plate to make.
Further, the inwall of described camera bellows is coated with black layer.
Particularly, described testing cassete is also provided with the upper cover this testing cassete can closed.
The invention provides a kind of focal length of convex lens pick-up unit, the distance of light-emitting component and convex lens to be measured is redefined for standard focal length by this device, by the image that image acquisition module collection light-emitting component is formed through convex lens to be measured, thus judge that the focal length of convex lens to be measured is whether in the scope of standard focal length, simple and convenient, avoid complexity debugging when convex lens being assembled into infrared eye, substantially increase the packaging efficiency of infrared eye.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of focal length of convex lens pick-up unit in the embodiment of the present invention;
Fig. 2 is the structural representation of testing cassete in Fig. 1;
Fig. 3 is the partial cutaway schematic of focal length of convex lens pick-up unit in the embodiment of the present invention;
Partial cutaway schematic when Fig. 4 is focal length of convex lens pick-up unit test in the embodiment of the present invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Below in conjunction with concrete accompanying drawing, realization of the present invention is described in detail.
As shown in Figure 1 to 4, be a preferred embodiment provided by the invention.
Focal length of convex lens pick-up unit of the present invention, for judging whether the real focal length of convex lens 100 to be measured is within the scope of the standard focal length F of standard convex lens, comprise light-emitting component, testing cassete 4 and image acquisition module 13, described light-emitting component can send Infrared, described convex lens 100 are fixed in described testing cassete 4, described image acquisition module 13 gathers and shows the image that described Infrared formed through convex lens 100, described image acquisition module 13 and described light-emitting component lay respectively at the both sides of described convex lens 100, described light-emitting component to be fixed in described testing cassete 4 and to be positioned at the photocentre place of the standard convex lens on described testing cassete 4, namely, the photocentre of described light-emitting component and described standard convex lens is at a distance of a standard focal length F.So, be preset with a standard focal length F, infrared ray, by the focus scattering of standard convex lens, by standard focal length F through described convex lens, becomes parallel beam, forms a standard picture, be convenient to the focal distance ratio of convex lens to be measured to judgement.When these convex lens 100 to be measured are fixed on described testing cassete 4, the infrared light that described light-emitting component sends, penetrated by the side of convex lens 100 to be measured, opposite side in convex lens 100 to be measured passes formation one image, described image acquisition module 13 gathers this image and shows, this image becomes image to contrast with infrared light through institute during standard convex lens by operator, thus judge that the real focal length of described boss mirror 100 to be measured is whether within the scope of standard focal length, if exceed this scope, then this boss mirror is scrapped, if be positioned at this scope, then these qualified convex lens to be measured are flowed into subsequent processing, assemble with the carrying out of infrared eye.Like this, just underproof for focal length convex lens are chosen very easily, simple and convenient, the convex lens and the infrared eye that avoid defective focal length are assembled, more do not need under the adjustment assembling condition of harshness, carry out complexity debugging assembling, improve the packaging efficiency of infrared eye.
Further, described image acquisition module 13 comprises camera bellows 2, B/W camera 3 and the black and white display 1 that a side is opened wide, when the infrared ray that described light-emitting component sends, when testing through described convex lens 100, described B/W camera 3 gathers this image formed through the Infrared of described convex lens 100, described black and white display 1 is electrically connected with described B/W camera 3, is shown by this image.The fine-tuning Black-White of black and white display 1 and contrast.So, adopt B/W camera 3 and black and white display 1, utilize and add the contrast of image, thus this image is compared with standard image that convex lens become by convenient operation person intuitively, and then judge that the real focal length of described convex lens 100 is whether within the scope of standard focal length F.
Further, described B/W camera 3 is 590-600cm with the distance D1 of described testing cassete 4, and described B/W camera 3 is 70-80cm with the distance from bottom D2 of described camera bellows 2, and the length direction of described camera bellows 2 is more than or equal to 500cm.So, distance D1 between described B/W camera 3 and described testing cassete 4 is set, described B/W camera 3 can be made to be in one be beneficial to and gather the interval range of Infrared through image formed by described convex lens 100, ensure that test effect, also a saving the test space.Described B/W camera 3 is set to 70-80cm with the distance D2 of the bottom of described camera bellows 2, and the length direction arranging described camera bellows 2 is more than or equal to 500cm.So, ensure that contrast when B/W camera 3 gathers image, further increase test effect, decrease the material usage of described camera bellows 2 simultaneously, saved cost of manufacture.
Again further, described light-emitting component is infrared transmitting tube 421.Infrared transmitting tube 421 is the electronic component of standard, forms batch production, low price, is easy to buy, and is convenient to safeguard change.As shown in Figure 2, the left side wall of described testing cassete 4 offers a wire hole 43, the inwall of the bottom of testing cassete 4 is fixedly connected with circuit board 44, in actual test, infrared transmitting tube 421 is connected to described circuit board 44, described circuit board 44 is electrically connected with external power supply through described wire hole 43 by power lead, and described external power supply provides the direct supply of a 12V.Described circuit board 44 triggers described infrared transmitting tube 421 by control one pulsing circuit and sends infrared ray and test described convex lens 100.So, test operation is simple and convenient.
Particularly, described testing cassete 4 is provided with for installing the fixed orifice 41 of locating described convex lens, described fixed orifice 41 run through be arranged at described testing cassete 4 a lateral wall on.So, be convenient to the installation location of described convex lens 100, in actual test, by convex lens 100 to be measured, be positioned in described fixed orifice 41, by the inwall of described fixed orifice 41 and the outer rim wringing fit of convex lens 100 to be measured, convex lens 100 to be measured can not be moved along a sidewall surfaces of described testing cassete 4.Like this, the location of convex lens 100 to be measured is effectively simple and quick, can improve testing efficiency.Be positioned in described fixed orifice 41 for the ease of convex lens 100 to be measured, usually the outer rim of described fixed orifice 41 can be done a undersized chamfering, so that convex lens to be measured 100 guiding is installed in described fixed orifice 41.
More specifically, described fixed orifice 4 is a shoulder hole.Shoulder hole has an end face 411, described end face 411 is towards described convex lens 100, when described convex lens 100 are installed on described shoulder hole, described end face 411 supports convex lens 100, make its axial location, so, operator fixes convex lens to be measured when described shoulder hole, when described end face 411 is supported on the surface of convex lens to be measured, just convex lens to be measured are installed fix in position.Whole effectively simple to operate, also can realize fool proof, guarantee all convex lens to be measured to be installed fix in position at every turn, reduce alignment error, improve measuring accuracy and testing efficiency.
Further, described testing cassete 4 is provided with the light hole 42 for fixing light-emitting component, the contiguous described fixed orifice 41 of described light hole 42 on same center line.So, described light-emitting component can be fixedly welded on light hole 42, ensure that the position degree of described light-emitting component, the contiguous described fixed orifice 41 of light hole 42 on same center line, ensure that the luminous point of described light-emitting component is positioned at the position of standard focal length all the time, this avoid the artificial alignment error of test, improve the accuracy of test.
Again further, described testing cassete 4 adopts PVC material or bakelite plate to make.Described PVC material or bakelite plate are the industrial materials of standard, are convenient to buying, then, the welding performance of PVC material or bakelite plate is excellent, is convenient to processing and fabricating; Good stability, make shaping after not yielding.
Further, the inwall of described camera bellows 2 is coated with black layer.In actual test, described black layer is coated on the inwall of described camera bellows 2, this provides a described B/W camera 3 gather infrared ray become illuminance required for image, be beneficial to after B/W camera 3 gathers image, clear display on black and white display 1.Also can do to supplement light source by mounted LED lamp on described camera bellows 2, regulate the illuminance in camera bellows 2.
Particularly, described testing cassete 4 is also provided with the upper cover this testing cassete 4 can closed.So, a seal chamber can be formed, by described light-emitting component by described testing cassete 4, circuit board 44 is closed in wherein, avoid the pollution to described light-emitting component and described circuit board 44, ensure that the fixed position of described light-emitting component and described circuit board 44 simultaneously, and then ensure measuring accuracy.
Now the test process of described convex lens 100 is described in detail:
As shown in Figure 4, convex lens 100 to be measured are installed in described fixed orifice 41 by operator, fit fixing with described end face 411, described in circuit board 44 gating pulse circuit triggers, infrared transmitting tube 421 sends the Infrared of scattering, the luminous point of infrared transmitting tube 421 is positioned at the focus place of standard convex lens, and the Infrared of scattering forms parallel beam through convex lens 100 to be measured.As shown in Figure 1, being arranged at distance B/W camera in camera bellows 23 and testing cassete 4 being provided with the sidewall of convex lens 100 is D1, this distance D1 is 590-600cm, the image grasped described parallel beam and formed flutterred by B/W camera 3, it is gathered, and shows on the black and white display 1 be electrically connected with described B/W camera 3.The standard picture that operator will be formed according to standard convex lens, compares with the image formed through convex lens 100 to be measured.So, can judge that the real focal length of convex lens 100 to be measured is whether in the scope of standard focal length.Whole test process is simple and convenient, be easy to operation, and testing apparatus takes up room little.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. focal length of convex lens pick-up unit, for judging whether the real focal length of convex lens to be measured is within the scope of the standard focal length of standard convex lens, it is characterized in that: comprise the light-emitting component that can send Infrared, the testing cassete of convex lens can be fixed and can gather and show the image acquisition module of image that described Infrared formed, described image acquisition module and described light-emitting component lay respectively at the both sides of described convex lens, described light-emitting component to be fixed in described testing cassete and with the photocentre of the standard convex lens be fixed on described testing cassete at a distance of a standard focal length, Infrared is by the focus scattering of described standard convex lens, parallel beam is become through after described standard convex lens by standard focal length, form a standard picture, the infrared light that described light-emitting component sends is by convex lens to be measured, and described image acquisition module gathers this image and shows, and this image is used for contrasting with described standard picture, thus judges that the real focal length of convex lens to be measured is whether within the scope of standard focal length.
2. focal length of convex lens pick-up unit according to claim 1, it is characterized in that: described image acquisition module comprises camera bellows for described Infrared being imported, be used for gathering through described convex lens Infrared form image B/W camera and being used for show the black and white display of the image that the Infrared through described convex lens is formed, described B/W camera is arranged in camera bellows, is electrically connected with described black and white display.
3. focal length of convex lens pick-up unit according to claim 2, it is characterized in that: described B/W camera and described testing cassete are at a distance of 590-600cm, the bottom of described B/W camera and described camera bellows is at a distance of 70-80cm, and the length direction of described camera bellows is more than or equal to 500cm.
4. focal length of convex lens pick-up unit according to claim 1, is characterized in that: described light-emitting component is infrared transmitting tube.
5. focal length of convex lens pick-up unit according to claim 1, is characterized in that: described testing cassete is provided with the fixed orifice for installing described convex lens, and described fixed orifice runs through and is arranged on a lateral wall of described testing cassete.
6. focal length of convex lens pick-up unit according to claim 5, is characterized in that: described fixed orifice is a shoulder hole.
7. focal length of convex lens pick-up unit according to claim 5, is characterized in that: described testing cassete is provided with the light hole for fixing light-emitting component, the contiguous described fixed orifice of described light hole with described fixed orifice on same center line.
8. focal length of convex lens pick-up unit according to claim 1, is characterized in that: described testing cassete adopts PVC material or bakelite plate to make.
9. focal length of convex lens pick-up unit according to claim 2, is characterized in that: the inwall of described camera bellows is coated with black layer.
10. focal length of convex lens pick-up unit according to claim 1, is characterized in that: described testing cassete is also provided with the upper cover this testing cassete can closed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210183003.4A CN103454066B (en) | 2012-06-05 | 2012-06-05 | Focal length of convex lens pick-up unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210183003.4A CN103454066B (en) | 2012-06-05 | 2012-06-05 | Focal length of convex lens pick-up unit |
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| CN103454066A CN103454066A (en) | 2013-12-18 |
| CN103454066B true CN103454066B (en) | 2016-04-06 |
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| CN106645149B (en) * | 2016-11-24 | 2023-08-08 | 歌尔科技有限公司 | Test system and test method for board-to-board connector |
| CN110505407B (en) * | 2019-09-04 | 2021-02-12 | 烟台艾睿光电科技有限公司 | Lens focusing method, device and equipment of infrared imaging equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1490215A (en) * | 1974-07-15 | 1977-10-26 | Inst Nat Du Verre | Method and apparatus for testing lenses |
| JPS56634A (en) * | 1979-06-18 | 1981-01-07 | Ricoh Co Ltd | Mtf measuring unit for half-lens |
| JPS58179333A (en) * | 1982-04-14 | 1983-10-20 | Olympus Optical Co Ltd | Measuring device for focal length |
| JP2002340738A (en) * | 2001-05-14 | 2002-11-27 | Asahi Optical Co Ltd | Optical member inspecting apparatus |
| CN1605847A (en) * | 2000-05-01 | 2005-04-13 | 富士胶片株式会社 | Fluid dispenser and lens inspection device |
| CN201569558U (en) * | 2009-09-08 | 2010-09-01 | 湖北华中光电科技有限公司 | Automated focal length detector |
| CN202735066U (en) * | 2012-06-05 | 2013-02-13 | 深圳市豪恩安全科技有限公司 | Convex lens focal length detection device |
-
2012
- 2012-06-05 CN CN201210183003.4A patent/CN103454066B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1490215A (en) * | 1974-07-15 | 1977-10-26 | Inst Nat Du Verre | Method and apparatus for testing lenses |
| JPS56634A (en) * | 1979-06-18 | 1981-01-07 | Ricoh Co Ltd | Mtf measuring unit for half-lens |
| JPS58179333A (en) * | 1982-04-14 | 1983-10-20 | Olympus Optical Co Ltd | Measuring device for focal length |
| CN1605847A (en) * | 2000-05-01 | 2005-04-13 | 富士胶片株式会社 | Fluid dispenser and lens inspection device |
| JP2002340738A (en) * | 2001-05-14 | 2002-11-27 | Asahi Optical Co Ltd | Optical member inspecting apparatus |
| CN201569558U (en) * | 2009-09-08 | 2010-09-01 | 湖北华中光电科技有限公司 | Automated focal length detector |
| CN202735066U (en) * | 2012-06-05 | 2013-02-13 | 深圳市豪恩安全科技有限公司 | Convex lens focal length detection device |
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