CN102865550A - Fresnel lens parallel light source, detection device of Fresnel lens parallel light source, and use method of detection device - Google Patents
Fresnel lens parallel light source, detection device of Fresnel lens parallel light source, and use method of detection device Download PDFInfo
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- CN102865550A CN102865550A CN2012103424073A CN201210342407A CN102865550A CN 102865550 A CN102865550 A CN 102865550A CN 2012103424073 A CN2012103424073 A CN 2012103424073A CN 201210342407 A CN201210342407 A CN 201210342407A CN 102865550 A CN102865550 A CN 102865550A
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- aluminium alloy
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Abstract
The invention discloses a Fresnel lens parallel light source, a detection device of the Fresnel lens parallel light source, and a use method of the detection device. The Fresnel lens parallel light source comprises a casing consisting of six aluminum plates, wherein the aluminum plates respectively comprise first to sixth aluminum plates, an LED (light emitting diode) light source is arranged on the inner side surface of the third aluminum alloy plate, a diffusion plate separating the casing into a left part and a right part is vertically arranged in the casing, a spectroscope is arranged between the diffusion plate and the fourth aluminum alloy plate of the casing, one end of the spectroscope is arranged at the included angle part of the second aluminum alloy plate and the fourth aluminum alloy plate, the other end of the spectroscope is arranged at the included angle part of the first aluminum alloy plate and the diffusion plate, a first Fresnel lens and a second Fresnel lens are vertically arranged between the diffusion plate and the third aluminum alloy plate, the convex surface of the first Fresnel lens is opposite to the convex surface of the second Fresnel lens, and the distance between the two convex surfaces is adjustable. When the Fresnel lens parallel light source is used, the first Fresnel lens can completely absorb 120-degree light rays, and after being absorbed by the second Fresnel lens, the light rays are converted into parallel light rays. The Fresnel lens parallel light source is suitable for detecting objects in any size, the cost is low, and the weight is light.
Description
Technical field
The present invention relates to the using method of Fresnel Lenses source of parallel light and checkout gear thereof and this checkout gear, particularly be applied to detect the Fresnel Lenses source of parallel light of large sized object and the using method of checkout gear and this checkout gear thereof.
Background technology
Extremely shown in Figure 3 referring to Fig. 1, the existing coaxial perspective light source of object, comprise a housing 10, described housing 10 is comprised of six blocks of aluminium sheets, and described aluminium sheet is respectively the first aluminium alloy plate 11, the second aluminium alloy plate 12,3 Al alloy plate 13, the 4th aluminium alloy plate 14, the 5th aluminium alloy plate 15 and the 6th aluminium alloy plate (not marking among the figure); Described the first aluminium alloy plate 11 is provided with the first loophole 11a, and described the first loophole 11a adopts the first glass 11b sealing; Described the second aluminium alloy plate 12 be provided with the first aluminium alloy plate 11 on the second loophole 12a of the first loophole 11a symmetry, the medial surface of described housing 3 Al alloy plate 13 is provided with led light source 13a; Described housing 10 interior vertically being provided with are divided into the two-part diffusing panel 17 in the left and right sides with housing 10, be provided with spectroscope 18 between described diffusing panel 17 and housing the 4th aluminium alloy plate 14, one end of described spectroscope 18 is placed in the angle of the second aluminium alloy plate 12 and the 4th aluminium alloy plate 14, and the other end of described spectroscope 18 is placed in the angle of the first aluminium alloy plate 11 and diffusing panel 17; The axis of described the first loophole 11a and the second loophole 12a point-blank; Be provided with convex lens 19 between described diffusing panel 17 and the 3 Al alloy plate 13.
The existing coaxial perspective light source of object in use, be light source by single highlighted LED, planoconvex lens 19 sends evenly soft light by diffusing panel 17 after converting parallel rays to, shone to testee 20 by the spectroscope 18 that is 45 ° of shapes, the reflection ray of testee 20 is taken pictures or imaging by camera system 30 behind spectroscope 18 again.
This type of adopts single highlighted LED can not be accepted by convex lens 19 fully because dispersing 120 ° of light, so that brightness of illumination is darker; Adopt the light source of convex lens 19 generally to be used in the small-size object detection, but detection certainly will cause the very large very thick very heavy cost of convex lens 19 very high for large sized object, quite inconvenience.
Summary of the invention
The technical problem to be solved in the present invention provide a kind of cost low, lightweight, can establish for any object detection the using method of Fresnel Lenses source of parallel light and checkout gear thereof and this checkout gear particularly.
For achieving the above object, technical scheme of the present invention is as follows:
The Fresnel Lenses source of parallel light comprises
One housing, described housing is comprised of six blocks of aluminium sheets, and described aluminium sheet is respectively the first aluminium alloy plate, the second alloy aluminium sheet, 3 Al alloy plate, the 4th aluminium alloy plate, the 5th aluminium alloy plate and the 6th aluminium alloy plate; Described the first aluminium alloy plate is provided with the first loophole, and described the first loophole adopts the first glass capsulation; Described the second aluminium alloy plate be provided with the first aluminium alloy plate on the second loophole of the first loophole symmetry;
The medial surface of described housing 3 Al alloy plate is provided with led light source; Vertically be provided with in the described housing housing is divided into the two-part diffusing panel in the left and right sides, be provided with spectroscope between described diffusing panel and housing the 4th aluminium alloy plate, a described spectroscopical end is placed in the angle of the second aluminium alloy plate and the 4th aluminium alloy plate, and described spectroscopical other end is placed in the angle of the first aluminium alloy plate and diffusing panel;
The axis of described the first loophole and the second loophole point-blank;
It is characterized in that: described Fresnel Lenses source of parallel light also comprises first Fresnel Lenses and second Fresnel Lenses of two positioned vertical between diffusing panel and 3 Al alloy plate, described the first Fresnel Lenses and the second Fresnel Lenses convex surface arrange in opposite directions and spacing adjustable.
In another embodiment, detect the device of the coaxial perspective light source of large sized object, comprise the coaxial perspective light source of large sized object, be placed in large sized object coaxial perspective light source top and be used for object is taken pictures or the camera system of imaging.
Preferably, described camera system is camera or camera lens.
Preferably, described camera is area array CCD camera.
Preferably, described camera lens is high-resolution lens.
Preferably, described camera system is fixed by support.
In another embodiment of the present invention, detect the using method of the device of the coaxial perspective light source of large sized object, the step of described using method is as follows:
(1) plugged, led light source is luminous, light is mapped on the first Fresnel Lenses, the first Fresnel Lenses converts light to the low-angle astigmatism, the low-angle astigmatism is mapped on the second Fresnel Lenses, the second Fresnel Lenses changes into parallel rays with it, the parallel rays that forms sends evenly soft light through diffusing panel, shone to testee by the second loophole by the spectroscope that is 45° angle, the reflection ray of testee is taken pictures or imaging by camera system behind the second loophole, spectroscope, the first loophole again.
By technique scheme, the invention has the beneficial effects as follows:
The present invention in use, the first Fresnel Lenses changes into the low-angle astigmatism after absorbing 120 ° of light fully, after absorbing, the second Fresnel Lenses changes into directional light, this type of adopts the light source of single highlighted LED and two Fresnel Lenses to be applicable to any size objects and detects, and particularly large sized object detects; The cost of Fresnel Lenses is quite low, and is lightweight.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is prior art external structure schematic diagram;
Fig. 2 is the prior art cutaway view;
Fig. 3 is the prior art fundamental diagram;
10, housing 11, the first aluminium alloy plate 11a, the first loophole 11b, the first glass 12, the second aluminium alloy plate 12a, the second loophole 13,3 Al alloy plate 13a, led light source 14, the 4th aluminium alloy plate 15, the 5th aluminium alloy plate 17, diffusing panel 18, spectroscope 19, convex lens 20, testee 30, camera system
Fig. 4 is external structure schematic diagram of the present invention;
Fig. 5 is cutaway view of the present invention;
Fig. 6 is embodiment 1 structural representation;
Fig. 7 is embodiment 1 fundamental diagram.
Numeral and the represented corresponding component title of letter among the figure:
100, housing 110, the first aluminium alloy plate 110a, the first loophole 110b, the first glass 120, the second aluminium alloy plate 120a, the second loophole 130,3 Al alloy plate 130a, led light source 140, the 4th aluminium alloy plate 150, the 5th aluminium alloy plate 170, diffusing panel 180, spectroscope 190, the first Fresnel Lenses 200, the second Fresnel Lenses 210, incident ray 220, reflection ray 300, camera system 400, testee
The specific embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
Referring to Fig. 4 and shown in Figure 5, Fresnel Lenses source of parallel light of the present invention comprises a housing 100, and housing 100 is comprised of six aluminium alloy plates, its good heat dissipation effect; Housing can be cuboid or cube structure; Aluminium sheet is respectively the first aluminium alloy plate 110, the second aluminium alloy plate 120,3 Al alloy plate 130, the 4th aluminium alloy plate 140, the 5th aluminium alloy plate 150 and six directions gold aluminium sheet (not marking among the figure); The first aluminium alloy plate 110 is provided with the first loophole 110a, and the first loophole 110a adopts the first glass capsulation 110b; The second aluminium alloy plate 120 be provided with the first aluminium alloy plate 110 on the second loophole 120a of the first loophole 110a symmetry.The medial surface of housing 3 Al alloy plate 130 of the present invention is provided with led light source 130a; The present invention is single led light source, and it can also adopt a plurality of led light sources according to actual needs; Housing 100 interior vertically being provided with are divided into the two-part diffusing panel 170 in the left and right sides with housing 100, be provided with spectroscope 180 between diffusing panel 170 and housing the 4th aluminium alloy plate 140, one end of spectroscope 180 is placed in the angle of the second aluminium alloy plate 120 and the 4th aluminium alloy plate 140, and the other end of spectroscope 180 is placed in the angle of the first aluminium alloy plate 110 and diffusing panel 170;
The axis of the present invention the first loophole 110a and the second loophole 120a point-blank; Being convenient to light can pass from two loopholes smoothly.
Fresnel Lenses source of parallel light of the present invention also comprise two positioned vertical between diffusing panel 170 and 3 Al alloy plate 130 the first Fresnel Lenses 190 and the second Fresnel Lenses 200, the first Fresnel Lenses 190 and the second Fresnel Lenses 200 convex surfaces arrange in opposite directions and spacing is adjustable; Distance range indefinite between the first Fresnel Lenses 190 to second Fresnel Lenses 200 is decided by the concrete requirement that detects, and the second Fresnel Lenses 200 calculates to the focal length of the distance between the diffusing panel 170 by lens.
Embodiment 1
Referring to shown in Figure 6, Fig. 6 is for detecting the device of Fresnel Lenses source of parallel light, and it comprises the Fresnel Lenses source of parallel light, be placed in Fresnel Lenses source of parallel light top and be used for object is taken pictures or the camera system 300 of imaging.
Referring to shown in Figure 7, Fig. 7 is the using method of the device of detection Fresnel Lenses source of parallel light, and the step of this using method is as follows:
(1) plugged, led light source 130a energising is also luminous, the incident ray 210 that led light source 130a produces is mapped on the first Fresnel Lenses 190, the first Fresnel Lenses 190 converts incident ray 210 to the low-angle astigmatism, the low-angle astigmatism is advanced and is mapped on the second Fresnel Lenses 200, the second Fresnel Lenses 200 changes into parallel rays with the low-angle astigmatism, the parallel rays that forms sends evenly soft light through diffusing panel 170, be mapped on the spectroscope 180 from diffusing panel 170 light out, be the light that the spectroscope 180 of 45° angle is mapped on the spectroscope 180, the light that is reflected is by the second loophole 120a and according to testee 400, testee 400 goes back its light reflection again, and the reflection ray 220 that is reflected is through the second loophole 120a, spectroscope 180, taken pictures or imaging by camera system 300 behind the first loophole 110a.
Above demonstration and described basic principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (7)
1. the Fresnel Lenses source of parallel light comprises
One housing, described housing is comprised of six blocks of aluminium sheets, and described aluminium sheet is respectively the first aluminium alloy plate, the second alloy aluminium sheet, 3 Al alloy plate, the 4th aluminium alloy plate, the 5th aluminium alloy plate and the 6th aluminium alloy plate; Described the first aluminium alloy plate is provided with the first loophole, and described the first loophole adopts the first glass capsulation; Described the second aluminium alloy plate be provided with the first aluminium alloy plate on the second loophole of the first loophole symmetry;
The medial surface of described housing 3 Al alloy plate is provided with led light source; Vertically be provided with in the described housing housing is divided into the two-part diffusing panel in the left and right sides, be provided with spectroscope between described diffusing panel and housing the 4th aluminium alloy plate, a described spectroscopical end is placed in the angle of the second aluminium alloy plate and the 4th aluminium alloy plate, and described spectroscopical other end is placed in the angle of the first aluminium alloy plate and diffusing panel;
The axis of described the first loophole and the second loophole point-blank;
It is characterized in that: described Fresnel Lenses source of parallel light also comprises first Fresnel Lenses and second Fresnel Lenses of two positioned vertical between diffusing panel and 3 Al alloy plate, described the first Fresnel Lenses and the second Fresnel Lenses convex surface arrange in opposite directions and spacing adjustable.
2. detect the device of Fresnel Lenses source of parallel light, it is characterized in that, comprise the Fresnel Lenses source of parallel light, be placed in Fresnel Lenses source of parallel light top and be used for object is taken pictures or the camera system of imaging.
3. the device of the coaxial perspective light source of detection large sized object according to claim 2, it is characterized in that: described camera system is camera or camera lens.
4. the device of the coaxial perspective light source of detection large sized object according to claim 3, it is characterized in that: described camera is area array CCD camera.
5. the device of the coaxial perspective light source of detection large sized object according to claim 3, it is characterized in that: described camera lens is high-resolution lens.
6. the device of the coaxial perspective light source of detection large sized object according to claim 2, it is characterized in that: described camera system is fixed by support.
7. detect the using method of the device of Fresnel Lenses source of parallel light, it is characterized in that: the step of described using method is as follows:
(1) plugged, led light source is luminous, light is mapped on the first Fresnel Lenses, the first Fresnel Lenses converts light to the low-angle astigmatism, the low-angle astigmatism is mapped on the second Fresnel Lenses, the second Fresnel Lenses changes into parallel rays with it, the parallel rays that forms sends evenly soft light through diffusing panel, shone to testee by the second loophole by the spectroscope that is 45° angle, the reflection ray of testee is taken pictures or imaging by camera system behind the second loophole, spectroscope, the first loophole again.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012103424073A CN102865550A (en) | 2012-09-14 | 2012-09-14 | Fresnel lens parallel light source, detection device of Fresnel lens parallel light source, and use method of detection device |
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| CN2012103424073A CN102865550A (en) | 2012-09-14 | 2012-09-14 | Fresnel lens parallel light source, detection device of Fresnel lens parallel light source, and use method of detection device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107014832A (en) * | 2017-06-21 | 2017-08-04 | 深圳中天创图科技有限公司 | A kind of high reflective plane outward appearance detection linear light sorurce and detection method |
| CN107461631A (en) * | 2017-09-01 | 2017-12-12 | 苏州苏大维格光电科技股份有限公司 | A kind of portable illumination device and identifying system |
| CN110057753A (en) * | 2019-05-17 | 2019-07-26 | 北京领邦智能装备股份公司 | Detection accurate electro-optical device and measuring instrument out |
| CN113655063A (en) * | 2021-08-09 | 2021-11-16 | 天津城建大学 | Detection apparatus for combined material finished product spare hole quality |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202306089U (en) * | 2011-10-27 | 2012-07-04 | 东莞市奥普特自动化科技有限公司 | Linear coaxial light source |
| CN202302903U (en) * | 2011-10-27 | 2012-07-04 | 东莞市奥普特自动化科技有限公司 | Parallel lighting device |
| CN202769466U (en) * | 2012-09-14 | 2013-03-06 | 上海创波光电科技有限公司 | Fresnel lens parallel light source and detection device thereof |
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2012
- 2012-09-14 CN CN2012103424073A patent/CN102865550A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202306089U (en) * | 2011-10-27 | 2012-07-04 | 东莞市奥普特自动化科技有限公司 | Linear coaxial light source |
| CN202302903U (en) * | 2011-10-27 | 2012-07-04 | 东莞市奥普特自动化科技有限公司 | Parallel lighting device |
| CN202769466U (en) * | 2012-09-14 | 2013-03-06 | 上海创波光电科技有限公司 | Fresnel lens parallel light source and detection device thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107014832A (en) * | 2017-06-21 | 2017-08-04 | 深圳中天创图科技有限公司 | A kind of high reflective plane outward appearance detection linear light sorurce and detection method |
| CN107461631A (en) * | 2017-09-01 | 2017-12-12 | 苏州苏大维格光电科技股份有限公司 | A kind of portable illumination device and identifying system |
| CN110057753A (en) * | 2019-05-17 | 2019-07-26 | 北京领邦智能装备股份公司 | Detection accurate electro-optical device and measuring instrument out |
| CN113655063A (en) * | 2021-08-09 | 2021-11-16 | 天津城建大学 | Detection apparatus for combined material finished product spare hole quality |
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Application publication date: 20130109 |