CN105179980A - Large-area parallel scattered light beam emitting device - Google Patents
Large-area parallel scattered light beam emitting device Download PDFInfo
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- CN105179980A CN105179980A CN201510687209.4A CN201510687209A CN105179980A CN 105179980 A CN105179980 A CN 105179980A CN 201510687209 A CN201510687209 A CN 201510687209A CN 105179980 A CN105179980 A CN 105179980A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
- F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
- F21V17/12—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by screwing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
- F21V5/045—Refractors for light sources of lens shape the lens having discontinuous faces, e.g. Fresnel lenses
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/30—Collimators
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Laser Surgery Devices (AREA)
Abstract
The invention discloses a large-area parallel scattered light beam emitting device which comprises a rack, a cross curve optical laser, a rotating shaft, a motor, two conducing rings, a Fresnel lens and a grid plate, wherein the Fresnel lens and a support cylinder are fixedly mounted at one end of the rack; the grid plate is arranged at the front end of the support cylinder; the rotating shaft is arranged inside the inner hole of the other end of the rack; the central line of the rotating shaft and a focal axis of the Fresnel lens are colinear; the cross curve optical laser is arranged at the front end of the rotating shaft, and the rear end of the rotating shaft is connected with the motor; a light emitting point of the cross curve optical laser is positioned at the focus position of the round Fresnel lens; a positive pole and a negative pole for power supply of the cross curve optical laser are connected with the two conducing rings respectively through a cable and two conducting rods. According to the invention, light emitted from the cross curve optical laser is transformed into parallel light through the Fresnel lens, and the parallel light is scattered by the grid plate, so that large-area high-precision scattered parallel light beams can be obtained; the large-area parallel scattered light beam emitting device also has the advantages of being simple in structure and low in cost.
Description
Technical field
The present invention relates to a kind of source of parallel light generating means, particularly relate to a kind of extensive parallel discrete light beams emitter, the speculum belonging to solar concentrator detects and installation and debugging applied technical field.
Background technology
Along with the development of solar energy heat utilization technology, the optical performance requirements of concentrator is increased day by day, and in the type detection of mirror surface face, installation and debugging process of large-scale concentrator, all need the source of parallel light using basis, and due to the size of mirror surface larger, the large-area source of parallel light of general needs, and need to obtain discernible superfine discrete light beams in vision inspection process.
Current, the parallel light tube in optical instrument has certain precision source of parallel light device, but complex structure, involve great expense, and the bore of parallel light tube light source is limited simultaneously, and the light irradiated is continuous type, can not obtain discernible discrete light beams.A kind of source of parallel light device of machine vision imaging system is disclosed in Chinese patent CN204372612U, it is the source of parallel light device by LED light source and cylindrical mirror composition, although LED light source is arranged on paraboloidal focal position, but due to LED etc. cannot be real the characteristic realizing spot light, make its light ray parallel degree sent be difficult to ensure, and this technology also cannot obtain discrete light beam.Such as a kind of extensive parallel optical simulator disclosed in Chinese patent CN103791275A again, it is light source that this technology have employed LED chip, each LED adopts aspheric surface collector lens as light collecting device, and adopt Fresnel Lenses as collimating element, the combination of three obtains directional light, and is obtain large-area parallel rays by array above-mentioned functions unit.Obviously, the installation calibrating difficulty of its each functional module is comparatively large, the structure relative complex of whole directional light model device, and is also fail to obtain discrete collimated light beam.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of structure simple extensive parallel discrete light beams emitter, it can obtain discrete collimated light beam, and has calibration function to the collimation of discrete light beams.
The technical scheme that the present invention solves the problems of the technologies described above is: a kind of extensive parallel discrete light beams emitter, comprises frame, cross line laser, rotating shaft, motor, two conducting rings, Fresnel Lenses and Turbogrid plates; It is characterized in that: described frame is tubular structure, one end of frame is installed with Fresnel Lenses and support tube, described Turbogrid plates are fixedly mounted on the end of support tube, Turbogrid plates axial direction is provided with multiple manhole, and the axis of each manhole and the focal axis of circular Fresnel lens parallel;
Rotating shaft is provided with, the center line of rotating shaft and the focal axis conllinear of Fresnel Lenses in the endoporus of the other end of frame; Rotating shaft is provided with cross line laser towards Fresnel Lenses end, and the light emission point of cross line laser is positioned at the focal position of circular Fresnel lens; The other end of rotating shaft is connected with the output shaft of motor, and motor is fixedly mounted on the end of frame;
The side of described rotating shaft is provided with two insulating bases, and two insulating bases are connected with two conducting rings respectively by conducting rod; The link of conducting rod and conducting ring can rotate on conducting ring; Two conducting rings are fixedly mounted on the end of frame, between frame and motor, are provided with dead ring between two conducting rings, are provided with dead ring near between the conducting ring and frame of frame, are provided with dead ring near between the conducting ring and motor of motor; The power supply both positive and negative polarity of described cross line laser is connected with the end of the conducting rod on two insulating bases respectively by cable.
In above-mentioned extensive parallel discrete light beams emitter, described rotating shaft is arranged in the endoporus of frame by bearing.
In above-mentioned extensive parallel discrete light beams emitter, described two conducting rods pass through injection mo(u)lding, one end of two conducting rods is separately fixed on two insulating bases, the side of described two conducting rings is provided with ring-shaped groove, ring-shaped groove is coaxial with rotating shaft, the other end of described two conducting rods is provided with ring-shaped groove to the spheroid mated, and is connected with the ring-shaped groove on two conducting rings respectively by spheroid, and spheroid can slide in ring-shaped groove.
In above-mentioned extensive parallel discrete light beams emitter, insulating base is provided with screwed hole, and be the metal end of conducting rod bottom screwed hole, one end of the cable of described cross line laser is arranged in the screwed hole of insulating base, and is fixed by copper screw and is connected with the metal end of conducting rod.
In above-mentioned extensive parallel discrete light beams emitter, the optical plane that described cross line laser is formed at Fresnel Lenses place is greater than the radial dimension of Fresnel Lenses.
In above-mentioned extensive parallel discrete light beams emitter, the endoporus of described support tube coordinates with the external cylindrical surface of frame, is fixed by screw; Described frame is supported on bearing, and bearing comprises base and two semicircular ring, and base is provided with semi-circular recesses, and two semicircular ring are arranged on base by screw, and the groove of semicircular ring and base forms circular port, and the cylindrical of frame coordinates with the circular port of bearing.
In above-mentioned extensive parallel discrete light beams emitter, described frame has circumferentially been evenly arranged four circular holes, described rotating shaft be provided with cylindrical hole vertically.
In above-mentioned extensive parallel discrete light beams emitter, the sidewall of the manhole of described Turbogrid plates all scribbles the material of efficient absorption light.
Compared with prior art, the invention has the beneficial effects as follows: the present invention with cross laser device for light source, cross laser device is arranged on the focal position of Fresnel Lenses, collimated light beam is become by Fresnel Lenses, and cross laser device can rotate around the focal axis of circular Fresnel lens, the present invention is provided with Turbogrid plates at circular Fresnel lens exiting surface and carries out discrete to light, and Turbogrid plates can also, to the filtration of skew ray, make the present invention can obtain the capable discrete light beam of high-precision flat; The present invention also has the advantage that mechanism is simple, cost is low.
Accompanying drawing explanation
Fig. 1 is sectional view of the present invention.
Fig. 2 is top view of the present invention.
Fig. 3 is explosive view of the present invention.
Fig. 4 is axonometric drawing of the present invention.
Fig. 5 is the enlarged drawing at I place in Fig. 1.
Fig. 6 is conducting ring place of the present invention cut away view.
In figure: 1-end cap III; 2-cross line laser; 3-rotating shaft; 4-conducting ring; 5-dead ring; 6-conducting ring; 7-insulating sleeve; 8-cable; 9-motor; 10-screw rod; 11-retainer ring; 12-deep groove ball bearing; 13-bearing; 14-frame; 15-Fresnel Lenses; 16-end cap II; 17-support tube; 18-bolt; 19-end cap I; 20-Turbogrid plates; 21-semicircular ring; 22-key; 23-dead ring; 24-dead ring; 25-conducting rod; 26-conducting rod; 27-insulating base.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further illustrated.
As shown in Figure 1-Figure 3, the present invention includes frame 14, cross line laser 2, rotating shaft 3, motor 9, bearing 13, conducting rod 25, conducting rod 26, dead ring 5, dead ring 23, dead ring 24, conducting ring 4, conducting ring 6, circular Fresnel Lenses 15 and Turbogrid plates 20.Described frame 14 is tubular structure, is arranged on bearing 13.Described bearing 13 comprises base and two halves annulus 21, and base is provided with semi-circular recesses, and two semicircular ring 21 are arranged on base by screw, and semicircular ring 21 forms circular port with the groove of base, and the cylindrical of frame 14 coordinates with the circular port of bearing 13.Described cross line laser 2 is arranged on the end of rotating shaft 3, is positioned at the cylindrical hole of rotating shaft 3, and carries out axial location by end cap III 1 pairs of cross line lasers 2 of being arranged on rotating shaft 3 end.Described rotating shaft 3 is fixed in the endoporus of frame 14 one end by deep groove ball bearing 12.
As Fig. 3, Fig. 5, shown in Fig. 6, the side of described rotating shaft 3 is provided with two insulating bases 27, described conducting rod 25 and conducting rod 26 pass through injection mo(u)lding, one end of conducting rod 25 and conducting rod 26 is separately fixed in two insulating bases 27, described insulating base 27 is fixed by screws in rotating shaft 3, insulating base 27 is provided with screwed hole, and be the metal end of conducting rod 25 or conducting rod 26 bottom screwed hole, the power supply both positive and negative polarity of described cross line laser 2 by cable 8 respectively with conducting rod 25, conducting rod 26 connects, one end of described cable 8 is placed in the screwed hole of insulating base 27, and be fixed by copper screw and connect with the metal end of corresponding conducting rod.The side that described conducting ring 4 is relative with conducting ring 6 is provided with ring-shaped groove, and the end of described conducting rod 25 and conducting rod 26 is provided with ring-shaped groove to the spheroid mated, and sphere installation in ring-shaped groove, and can slide in ring-shaped groove.
Described conducting ring 4 and conducting ring 6 are arranged on one end of frame 14, conducting ring 4 is positioned at frame 14 and conducting ring 6 self-inspection, dead ring 23 is provided with between conducting ring 4 and frame 14, dead ring 5 is separated with between described conducting ring 4 and conducting ring 6, the outside of described conducting ring 6 is provided with retainer ring 11, dead ring 24 is separated with between conducting ring 6 and retainer ring 11, described conducting ring 4, conducting ring 6, dead ring 23, dead ring 24, dead ring 5 and retainer ring 11 are toroidal, and adopt mode stacking to be with one heart arranged in frame 14.Described motor 9 is arranged on outside retainer ring 11, and is connected with frame 14 by screw rod 10, is provided with insulating sleeve 7 between described screw rod 10 and bolt hole, prevents conducting ring 4, conduction between conducting ring 6 and other elements or short circuit.The output shaft of described motor 9 is connected with rotating shaft 3 by key 22.
Described Fresnel Lenses 15 is arranged in the interior circular hole of frame 14 one end, and adopt end cap II 16 to carry out axial restraint, the light emission point of institute's cross line laser 2 is positioned at the focal position of circular Fresnel lens 15, and the optical plane that cross line laser 2 is formed at Fresnel Lenses 15 place can be greater than the radial dimension of Fresnel Lenses 15.The center line of described rotating shaft 3 and the focal axis conllinear of Fresnel Lenses 15.Described Turbogrid plates 20 are arranged in the Cylinder inner bore of support tube 17, and carry out axial restraint by end cap I 19, and described Turbogrid plates 20 axial direction is provided with intensive tiny manhole, and the axis of each through hole is parallel with the focal axis of circular Fresnel lens 15.The endoporus of described support tube 17 coordinates with the external cylindrical surface of frame 14, and adopts screw to carry out axial restraint.
As Figure 1-4, described frame 14 is circumferentially evenly provided with four circular holes, facilitates adjustment and the replacing of cross line laser 2, described rotating shaft 3 center is provided with cylindrical hole vertically, be convenient to the connection of cable 8 and conducting rod 25, conducting rod 26, and prevent the winding of cable in rotation process.Described dead ring 23, dead ring 24, dead ring 5, insulating sleeve 7, insulating base 27 are non-conducting material and make.
Light by Turbogrid plates 20 through hole is being, the sidewall of through hole has reflex, thus cause emergent ray to deflect, make from the light beam of Turbogrid plates 20 injection not parallel, in order to the generation of anti-phenomenon here, the sidewall of the manhole of described Turbogrid plates 20 all scribbles the material of efficient absorption light.The present invention can pass through to change the diameter of Turbogrid plates manhole and the thickness of Turbogrid plates 20, corrects the nonparallelism of discrete light beams.From the discrete light beams maximum deviation of Turbogrid plates injection be:
In formula,
δfor the drift angle of outgoing beam and ideal parallelism light beam, D is the through-hole diameter of Turbogrid plates, and L is the thickness of Turbogrid plates 20, i.e. via depth.
Operation principle of the present invention is as follows: during work, is first connected by the power supply of cross line laser 2, turns on the both positive and negative polarity of power supply by conducting ring 4 and conducting ring 6.Then opening motor 9 makes cross line laser 2 carry out rotating around the focal axis of Fresnel Lenses 15, obtains directional light.Then, directional light, by the manhole of front grid plate 20, filters through error and becomes discrete collimated light beam.Certainly, also Turbogrid plates 20 can be removed when work, obtain continuous print extensive parallel light.
Claims (8)
1. an extensive parallel discrete light beams emitter, comprise frame (14), cross line laser (2), rotating shaft (3), motor (9), two conducting rings (4,6), Fresnel Lenses (15) and Turbogrid plates (20); It is characterized in that: described frame (14) is tubular structure, one end of frame (14) is installed with Fresnel Lenses (15) and support tube (17), described Turbogrid plates (20) are fixedly mounted on the end of support tube (17), Turbogrid plates (20) axial direction is provided with multiple manhole, and the axis of each manhole is parallel with the focal axis of circular Fresnel lens (15);
Rotating shaft (3) is provided with, the center line of rotating shaft (3) and the focal axis conllinear of Fresnel Lenses (15) in the endoporus of the other end of frame (14); Rotating shaft (3) is provided with cross line laser (2) towards Fresnel Lenses (15) end, and the light emission point of cross line laser (2) is positioned at the focal position of circular Fresnel lens (15); The other end of rotating shaft (3) is connected with the output shaft of motor (9), and motor (9) is fixedly mounted on the end of frame (14);
The side of described rotating shaft (3) is provided with two insulating bases (27), and two insulating bases (27) connect respectively by conducting rod (25,26) and two conducting rings (4,6); Conducting rod (25,26) above can rotate at conducting ring (4,6) with the link of conducting ring (4,6); Two conducting rings (4,6) end of frame (14) is fixedly mounted on, be positioned between frame (14) and motor (9), two conducting rings (4,6) dead ring (4) is provided with between, be provided with dead ring (23) near between the conducting ring (4) and frame (14) of frame (14), be provided with dead ring (24) near between the conducting ring (6) and motor (9) of motor (9); The power supply both positive and negative polarity of described cross line laser (2) is connected with the end of the conducting rod on two insulating bases (27) respectively by cable (8).
2. extensive parallel discrete light beams emitter according to claim 1, is characterized in that: described rotating shaft (3) is arranged in the endoporus of frame (14) by bearing (12).
3. extensive parallel discrete light beams emitter according to claim 1, it is characterized in that: described two conducting rods (25, 26) be pass through injection mo(u)lding, two conducting rods (25, 26) one end is separately fixed on two insulating bases (27), described two conducting rings (4, 6) side is provided with ring-shaped groove, ring-shaped groove is coaxial with rotating shaft (3), described two conducting rods (25, 26) the other end is provided with ring-shaped groove the spheroid mated, and by spheroid respectively with two conducting rings (4, 6) ring-shaped groove on connects, spheroid can slide in ring-shaped groove.
4. extensive parallel discrete light beams emitter according to claim 1, it is characterized in that: insulating base (27) is provided with screwed hole, and be conducting rod (25 bottom screwed hole, 26) metal end, one end of the cable (8) of described cross line laser (2) is arranged in the screwed hole of insulating base (27), and be fixed by copper screw and connect with the metal end of conducting rod (25,26).
5. extensive parallel discrete light beams emitter according to claim 1, is characterized in that: the optical plane that described cross line laser (2) is formed at Fresnel Lenses (15) place is greater than the radial dimension of Fresnel Lenses (15).
6. extensive parallel discrete light beams emitter according to claim 1, is characterized in that: the endoporus of described support tube (17) coordinates with the external cylindrical surface of frame (14), is fixed by screw; Described frame (14) is arranged on bearing (13), bearing (13) comprises base and two semicircular ring, base is provided with semi-circular recesses, two semicircular ring are arranged on base by screw, the groove of semicircular ring and base forms circular port, and the cylindrical of frame (14) coordinates with the circular port of bearing (13).
7. extensive parallel discrete light beams emitter according to claim 1, is characterized in that: described frame (14) has circumferentially been evenly arranged four circular holes, described rotating shaft (3) be provided with cylindrical hole vertically.
8. extensive parallel discrete light beams emitter according to claim 1, is characterized in that: the material sidewall of the manhole of described Turbogrid plates (20) all scribbling efficient absorption light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510687209.4A CN105179980B (en) | 2015-10-22 | 2015-10-22 | Large-area parallel scattered light beam emitting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510687209.4A CN105179980B (en) | 2015-10-22 | 2015-10-22 | Large-area parallel scattered light beam emitting device |
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| CN105179980A true CN105179980A (en) | 2015-12-23 |
| CN105179980B CN105179980B (en) | 2017-05-17 |
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| CN201510687209.4A Active CN105179980B (en) | 2015-10-22 | 2015-10-22 | Large-area parallel scattered light beam emitting device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105807430A (en) * | 2016-03-17 | 2016-07-27 | 邓泳安 | Parallel discrete light beam emitting system with efficient heat dissipation function |
| CN106339126A (en) * | 2016-08-17 | 2017-01-18 | 北京仁光科技有限公司 | Device for realizing arc-shaped light curtain, and arc-shaped screen interaction system and method |
| CN107957823A (en) * | 2017-12-18 | 2018-04-24 | 南京仁光电子科技有限公司 | For producing the device of the infrared light curtain parallel to screen |
| CN110535011A (en) * | 2019-09-29 | 2019-12-03 | 成都唐源电气股份有限公司 | Linear optics device attitude adjusting method |
| CN110778934A (en) * | 2019-11-08 | 2020-02-11 | 平行现实（杭州）科技有限公司 | Ultrathin parallel light source based on one-dimensional diffraction |
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| CN201696940U (en) * | 2010-06-18 | 2011-01-05 | 嘉善谦信和电子科技有限公司 | Portable illumination LED lamp with combined light rays of parallel light and scattered light |
| CN203190060U (en) * | 2013-04-15 | 2013-09-11 | 林宗平 | Lighting device |
| CN205026477U (en) * | 2015-10-22 | 2016-02-10 | 湖南科技大学 | Parallel discrete light beam emitter of large tracts of land |
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2015
- 2015-10-22 CN CN201510687209.4A patent/CN105179980B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201696940U (en) * | 2010-06-18 | 2011-01-05 | 嘉善谦信和电子科技有限公司 | Portable illumination LED lamp with combined light rays of parallel light and scattered light |
| CN203190060U (en) * | 2013-04-15 | 2013-09-11 | 林宗平 | Lighting device |
| CN205026477U (en) * | 2015-10-22 | 2016-02-10 | 湖南科技大学 | Parallel discrete light beam emitter of large tracts of land |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105807430A (en) * | 2016-03-17 | 2016-07-27 | 邓泳安 | Parallel discrete light beam emitting system with efficient heat dissipation function |
| CN106339126A (en) * | 2016-08-17 | 2017-01-18 | 北京仁光科技有限公司 | Device for realizing arc-shaped light curtain, and arc-shaped screen interaction system and method |
| CN107957823A (en) * | 2017-12-18 | 2018-04-24 | 南京仁光电子科技有限公司 | For producing the device of the infrared light curtain parallel to screen |
| CN110535011A (en) * | 2019-09-29 | 2019-12-03 | 成都唐源电气股份有限公司 | Linear optics device attitude adjusting method |
| CN110778934A (en) * | 2019-11-08 | 2020-02-11 | 平行现实（杭州）科技有限公司 | Ultrathin parallel light source based on one-dimensional diffraction |
| CN110778934B (en) * | 2019-11-08 | 2022-01-04 | 平行现实（杭州）科技有限公司 | Ultrathin parallel light source based on one-dimensional diffraction |
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| CN105179980B (en) | 2017-05-17 |
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