CN101440928A - Free curved surface lens - Google Patents
Free curved surface lens Download PDFInfo
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- CN101440928A CN101440928A CNA2007101705531A CN200710170553A CN101440928A CN 101440928 A CN101440928 A CN 101440928A CN A2007101705531 A CNA2007101705531 A CN A2007101705531A CN 200710170553 A CN200710170553 A CN 200710170553A CN 101440928 A CN101440928 A CN 101440928A
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Abstract
The invention relates to a free toroidal lens arranged in the irradiation direction of the lamp LED which takes the high power LED encapsulated by single-chip or poly-chip as light source. When the LED lights, the light illuminates from the free toroidal lens. The free toroidal lens can alter the irradiation direction by refracting the light from the LED so as to alter the LED lamp irradiation angle, range and light distribution. The preset light distribution effect is achieved after the light emitted from the LED passes through the free toroidal lens based on the refraction action of the free toroidal lens with different preset incident angles, different shapes and curvatures of the light incidence plane and the light emergence plane.
Description
Technical field
The present invention relates to a kind of free-form surface lens, especially can change with the great power LED light distribution of the light fixture that is light source, realize the free-form surface lens of default light distribution effect.
Background technology
At present, be that the light fixture of light source generally all adopts LED is fixed on the heat abstractor that has fin with the great power LED, and reflect with the light that reflection shield sends LED and to make light fixture, or compare with other point light source light-emitting according to the light that LED sends that front-to-back ratio is consistent, light is relatively concentrated the characteristic in directive exiting surface the place ahead, add lens at the LED direction of illumination and change light and distribute.Lens generally adopt the convex lens of traditional concept, and these two kinds of structures can't realize that diversified light distribution changes, and can only realize the optically focused and the astigmatism of circular scope, do not satisfy as the needed light distribution requirements of different purposes lightings.
Summary of the invention
The objective of the invention is, the lens that provide a kind of LED light fixture to use for making the high-powered LED lamp prodigiosin according to different purposes, different luminous intensity distribution needs, reach its optimal light distribution effect.
The technical scheme that the present invention is adopted for its technical problem of solution is: a kind of free-form surface lens of the LED of being used for light fixture, it is characterized in that, adopting the great power LED of single-chip package or the integrated encapsulation of multicore sheet is the light fixture of light source, in the position of LED direction of illumination free-form surface lens 2 is set, light is injected from a side of free-form surface lens 2, penetrated by opposite side surface after reflecting, it can be the continuous smooth curved surface that convex surface and concave surface by difformity, different curvatures combine that the light of free-form surface lens 2 is injected face and exiting surface.Change and inject the surface configuration of face and the incident angle that curvature can change light, change the surface configuration of exiting surface and the direction of illumination that curvature can change refracted ray, design the surface configuration and the curvature of the face of injecting and the exiting surface of lens according to this characteristic, change its direction of illumination behind the light scioptics that realization is sent LED and light distributes, reach default light distribution effect, thereby satisfy the diversity luminous intensity distribution needs of different purposes light fixtures.
The invention provides a kind of free-form surface lens to being that the light fixture of light source changes luminous intensity distribution with LED, thereby realized carrying out luminous intensity distribution accurately and effectively according to the distribution needs of not sharing the same light.
Operation principle of the present invention is, during the luminous work of LED3, light shines out by free-form surface lens 2, and the light that this free-form surface lens can send LED3 effectively changes direction of illumination by its refraction and carries out multi-direction multi-angle irradiation.When light directive lens, wherein a part is directly passed lens through refraction, and some can form reflection at lens surface, and especially hollow lens can be worn with new incident angle again after the reflection and penetrate lens.Under the different refraction action that free-form surface lens produced of the present invention, the light that LED3 is sent reaches the light distribution effect that needs after by free-form surface lens 2.
The invention has the beneficial effects as follows: according to the law of refraction of light, utilize free-form surface lens can change the characteristic of direction to the light that passes through, direction of illumination to light on purpose changes, can change the surface configuration of lens exiting surface and curvature and light and inject the shape of face and the incident angle that curvature changes light and the direction of illumination of refracted ray, thereby light irradiating angle, scope and the light of realizing changing the LED light fixture distribute.The light that LED is sent is by behind the free-form surface lens, can obtain the lamp distribution of ideal effect under the refraction action of the free-form surface lens of the different incident angle of setting, different surperficial curvature.
Description of drawings
1 lamp body, 2 free-form surface lens, 21～52 free-form surface lens, 3LED, 4 supports, 5 leads, 6 bolts, 7 bolts, 8 trim rings, 9 flanges.
Accompanying drawing 1 is an application structure schematic diagram of the present invention.
Accompanying drawing 2 is Fig. 1 Z-Z cross section views.
Accompanying drawing 3 is first embodiment of the invention structural representations.
Accompanying drawing 4 is Fig. 3 A-A cutaway views.
Accompanying drawing 5 is Fig. 3 B-B cutaway views.
Accompanying drawing 6 is second embodiment of the invention structural representations.
Accompanying drawing 7 is Fig. 6 D-D cutaway views.
Accompanying drawing 8 is Fig. 6 C-C cutaway views.
Accompanying drawing 9 is third embodiment of the invention structural representations.
Accompanying drawing 10 is Fig. 9 E-E cutaway views.
Accompanying drawing 11 is Fig. 9 W-W cutaway views.
Accompanying drawing 12 is Fig. 9 F-F cutaway views.
Accompanying drawing 13 is four embodiment of the invention structural representations.
Accompanying drawing 14 is Figure 13 G-G cutaway views.
Accompanying drawing 15 is Figure 13 H-H cutaway views.
Accompanying drawing 16 is fifth embodiment of the invention structural representations.
Accompanying drawing 17 is Figure 16 J-J cutaway views.
Accompanying drawing 18 is Figure 16 K-K cutaway views.
Accompanying drawing 19 is sixth embodiment of the invention structural representations.
Accompanying drawing 20 is Figure 19 L-L cutaway views.
Accompanying drawing 21 is Figure 19 M-M cutaway views.
Accompanying drawing 22 is seventh embodiment of the invention structural representations.
Accompanying drawing 23 is Figure 22 N-N cutaway views.
Accompanying drawing 24 is Figure 22 P-P cutaway views.
Accompanying drawing 25 is eighth embodiment of the invention structural representations.
Accompanying drawing 26 is Figure 25 Q-cutaway views.
Accompanying drawing 27 is Figure 25 R-R cutaway views.
Accompanying drawing 28 is ninth embodiment of the invention structural representations.
Accompanying drawing 29 is Figure 28 S-S cutaway views.
Accompanying drawing 30 is Figure 28 T-T cutaway views.
Accompanying drawing 31 is tenth embodiment of the invention structural representations.
Accompanying drawing 32 is Figure 31 U-U cutaway views.
Accompanying drawing 33 is Figure 31 V-V cutaway views.
Accompanying drawing 34 is eleventh embodiment of the invention structural representations.
Accompanying drawing 35 is Figure 34 O-O cutaway views.
Accompanying drawing 36 is Figure 34 I-I cutaway views.
Accompanying drawing 37 is twelveth embodiment of the invention structural representations.
Accompanying drawing 38 is Figure 37 X-X cutaway views.
Accompanying drawing 39 is Figure 37 Y-Y cutaway views.
Accompanying drawing 40 is thirteenth embodiment of the invention structural representations.
Accompanying drawing 41 is Figure 40 II-II cutaway views.
Accompanying drawing 42 is Figure 40 III-III cutaway views.
Accompanying drawing 43 is Figure 40 IV-IV cutaway views.
Accompanying drawing 44 fourteenth embodiment of the invention structural representations.
Accompanying drawing 45 is Figure 44 V-V cutaway views.
Accompanying drawing 46 is Figure 44 VI-VI cutaway views.
Accompanying drawing 47 is fifteenth embodiment of the invention structural representations.
Accompanying drawing 48 is Figure 47 VII-VII cutaway views.
Accompanying drawing 49 is Figure 47 VIII-VIII cutaway views.
Accompanying drawing 50 is sixteenth embodiment of the invention structural representations.
Accompanying drawing 51 is Figure 50 IX-IX cutaway views.
Accompanying drawing 52 is Figure 50 X-X cutaway views.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing:
Embodiment 1 sees Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5.
A kind of free-form surface lens, being used to adopt the great power LED of single-chip package or the integrated encapsulation of multicore sheet is the light fixture of light source, and LED3 is fixed on the lamp body 1, and free-form surface lens 21 is positioned at the LED direction of illumination; Free-form surface lens 2 is provided with flange 9, and trim ring 8 is pressed on the flange 9, fixedlys connected with lamp body 1 by bolt 6, and LED3 is sealed between lamp body and the free-form surface lens 2; Bolt 7 passes support 4 fixedlys connected with lamp body 1 trailing flank, and support 4 is rotationally connected with lamp body 1; Lead 5 is connected with terminals on the LED3 by the wire guide on the lamp body by the lamp body rear portion.Described free-form surface lens structure is, free-form surface lens 21 is a solid, and the bottom surface is the plane, is shaped as circle, mirror body light output surface middle part projection 211, and the middle part projection is connected with projection 212 all around, and projection 212 highly is lower than middle part protruding 211 highly.
Such structure can make incident light produce spotlight effect through lens refraction back, is convenient to light gather as requested penetrate, and improves the brightness of light fixture direction of illumination central area, and can realize the light distribution effect preset by the concavo-convex curvature of change lens surface.Can be made into searchlight, Projecting Lamp, shot-light etc., be applicable to the illumination in indoor and outdoor places such as square, road, tunnel, factory floor, mining area, court, arenas, view.
Described free-form surface lens structure is, free-form surface lens 22 is a solid, and the bottom surface is the plane, is shaped as circle, free-form surface lens 22 light output surface centre indents, projection all around.Other structures are with embodiment 1.
Such structure can make incident light produce through lens refraction back that zone line light is dispersed, light scattering to the periphery, play and reduce central point brightness, enlarge irradiated area, improve the light distribution consistency degree of light fixture irradiation, and can realize the light distribution effect preset by changing the concavo-convex curvature of lens surface.Be applicable to square, road, tunnel, factory floor, mining area, court, arenas, view and other large space indoor and outdoor lighting.
Described free-form surface lens structure is, free-form surface lens 23 is a solid, and the bottom surface is the plane, is shaped as circle, and free-form surface lens 23 light output surfaces are three projectioies, and strip projected parts 231 height in middle part are greater than both sides projection 232 height; Connect by the indent arc transition between the boss.Other structures are with embodiment 1.
The refracted ray direction that such structure can make incident light process lens refraction back produce zone line changes little than both sides, bigger to the refracted ray angle change of two side directions, its positive effect is that incident light increases through the light of lens refraction back to both sides, zone line does not have the obviously poly-effect of penetrating, the WBR zone is oblong, and can adjust the photodistributed uniformity in the field of illumination, and can realize the light distribution effect preset by the curvature that changes the lens surface projection by the curvature that changes projection on the lens surface.Be applicable to that square, road, tunnel, factory floor, mining area, court, arenas, view etc. need widen the space illumination of depth direction range of exposures.Other structures are with embodiment 1.
Embodiment 4 sees Figure 13, Figure 14, Figure 15
Described free-form surface lens structure is, free-form surface lens 24 is a solid, and the bottom surface is the plane, is shaped as circle, and free-form surface lens 24 cross sectional shapes are that its edge line is a parabolic shape.Other structures are with embodiment 1.
Such structure can make incident light produce spotlight effect through lens refraction back, is convenient to light gather as requested penetrate, and improves the brightness of light fixture direction of illumination central area, and can realize the light distribution effect preset by the concavo-convex curvature of change lens surface.Searchlight, Projecting Lamp, shot-light, spotlight etc. be can make, square, road, tunnel, factory floor, mining area, court, arenas, view and the illumination of other indoor and outdoor spaces are applicable to.
Described free-form surface lens structure is, free-form surface lens 25 is a hollow body, and hollow section edges line is parabola or camber line shape shape.Other structures are seen embodiment 4.
The parabola that such structure can be by changing the cross section outer edge or the curvature of camber line change the incidence angle of incident ray, after refraction, make light form the effect of dispersing, thereby realize that light fixture can have bigger irradiating angle and than even light distribution, and can realize the light distribution effect preset by changing the concavo-convex curvature of lens surface.Be applicable to indoor, exterior space illumination that illumination, brightness and the uniformity are had relatively high expectations.
Described free-form surface lens structure is, free-form surface lens 26 is a solid, and the bottom surface is the plane, be shaped as circle, free-form surface lens 26 exiting surfaces middle part is connected with a circle projection 262 around having one microscler protruding 261, protruding 261, and projection 261 is higher than protruding 262.Other structures are with embodiment 1.
Such structure can be implemented on the basis of extensive illumination strengthens the concentration degree of light and the brightness of illumination to elliptical region in the middle of in the irradiation area, and can realize the light distribution effect preset by changing the concavo-convex curvature of lens surface.Be applicable to indoor and outdoor spaces illuminations such as factory floor, warehouse, road, tunnel, view.
Embodiment 7 sees Figure 22, Figure 23, Figure 24
Described free-form surface lens structure is, free-form surface lens 27 is a solid, and the bottom surface is the plane, is shaped as circle, and the two side portions of free-form surface lens 27 light output surfaces is strip projected parts, middle indent.Other structures are with embodiment 1.
After such structure can make incident light through the lens refraction zone line light is become dredges, light to both sides increases, play the longitudinal area that reduces central point brightness, enlarge irradiation, improve the light distribution consistency degree of light fixture irradiation, and can realize the light distribution effect preset by changing the concavo-convex curvature of lens surface.Be applicable to square, road, tunnel, factory floor, mining area, military area and other large space indoor and outdoor lighting.
Described free-form surface lens structure is, free-form surface lens 28 is a solid, the bottom surface is the plane, be shaped as circle, the mid portion and the two side portions of free-form surface lens 28 light output surfaces are curved protrusion, and the height of intermediate projections 281 is higher than the height of both sides projection 292, and the protruding curvature of both sides projection 292 is greater than intermediate projections 281, connect intermediate projections 281 both sides indents 283 between the projection by the inner sunken face transition.Other structures are with embodiment 1.
The radiation direction that such structure can make incident light process lens refraction back produce zone line changes little than both sides, more broad in the middle to the light angle change of two side directions, its positive effect is that incident light is through lens refraction back refracted ray increasing to both sides, zone line does not have the obviously poly-effect of penetrating, the WBR zone is oblong, and overall distribution of light is even in the field of illumination, and can realize the light distribution effect preset by the curvature that changes the lens surface projection.Be applicable to that road, tunnel, square, mine etc. need to increase the space illumination of depth direction irradiated area.
Described free-form surface lens structure is, free-form surface lens 29 is a solid, and the bottom surface is the plane, is shaped as circle, and free-form surface lens 29 is oval at the X-axis cross sectional shape, is the shaped form of both sides indent in the Y-axis cross section.
Such structure can make incident light produce spotlight effect through lens refraction back, be convenient to light gathered as requested and penetrate, the field of illumination ovalize, the brightness that improves light fixture direction of illumination center elliptic region, and can realize the light distribution effect preset by the curvature that changes the lens surface projection.Be applicable to indoor and outdoor spaces illuminations such as factory floor, warehouse, road, tunnel, view.Other structures are with embodiment 1.
Embodiment 10 Figure 31, Figure 32, Figure 33
Described free-form surface lens structure is, free-form surface lens 30 is a hollow body, and in X, Y-axis cross section, hollow edge line shape is parabola or arc shape.Such structure can change the incidence angle of incident ray by the curvature that changes hollow region cross section parabola or camber line and light output surface projection, realize light is shone by the direction of presetting through refraction, thereby realize that light fixture can have bigger irradiating angle and vertically shine span and even light distribution.Be applicable to indoor, exterior space illumination that illumination, brightness and the uniformity are had relatively high expectations.Other structures are seen embodiment 9.
Embodiment 11 sees Figure 34, Figure 35, Figure 36
Described free-form surface lens structure is, free-form surface lens 31 is a hollow body, and the bottom surface is light incident one side, and hollow concave surface section edges wire shaped is circular arc or parabola.
It is that the lens on plane are compared that such structure can make with light incident one side, changed the angle of incident light, light is dispersed towards periphery through the light that lens refraction back produces zone line, play the brightness that reduces the irradiation area central point, enlarge irradiated area, improve light fixture light distribution consistency degree and realize the light distribution effect preset being applicable to square, road, tunnel, factory floor, gas station, mining area and other large space indoor and outdoor lighting by changing the concavo-convex curvature of lens surface.Other structures are seen embodiment 2
Embodiment 12 sees Figure 37, Figure 38, Figure 39
Described free-form surface lens structure is, free-form surface lens 32 is a hollow body, and the bottom surface is light incident one side, and hollow concave surface section edges wire shaped is circular arc or parabola.After such structure can make incident light through the lens refraction, irradiation area centre position divergence of beam is become to be dredged, illumination reduces, light to both sides increases, play the vertical width that reduces central point brightness, enlarges irradiation, the light distribution consistency degree that improves the light fixture irradiation and realize the light distribution effect preset being applicable to square, road, tunnel, factory floor, mining area, military area and other large space indoor and outdoor lighting by changing the concavo-convex curvature of lens surface.Other structures are seen embodiment 7.
Embodiment 13 sees Figure 40, Figure 41, Figure 42, Figure 43
Described free-form surface lens structure is, free-form surface lens 33 is a hollow body, and the bottom surface is light incident one side, and hollow concave surface section edges wire shaped is circular arc or parabola.
Such structure can make incident light through lens refraction back produce radiation direction in the middle of the irradiation area change little than both sides, increase to the light of two side directions, its positive effect is that incident light is through the expansion of lens refraction back light to both sides, zone line does not have the obviously poly-effect of penetrating, the WBR zone is oblong, depth direction irradiated area increases, and overall distribution of light is even in the irradiation area, and can realize realizing the light distribution effect preset by the concavo-convex curvature that changes lens surface.Be applicable to indoor and outdoor spaces illuminations such as road, tunnel, square, mine, advertisement, view.Other structures are seen embodiment 3.
Embodiment 14 sees Fig. 1 Fig. 2 Figure 44, Figure 45, Figure 46
Described free-form surface lens structure is, free-form surface lens 34 is a hollow body, and the bottom surface is light incident one side, and hollow concave surface section edges wire shaped is circular arc or parabola.
Such structure can make incident light through the refraction again after the reflection of lens incidence surface of lens refraction＜parts incident light〉generation increases to the light of two side directions, its positive effect is, the WBR zone is oblong, vertical irradiation advantage is arranged, and overall distribution of light is even in the field of illumination, can realize realizing the light distribution effect preset by changing the concavo-convex curvature of lens surface.Be applicable to space illuminations such as road, tunnel, square, factory, advertisement, mine.Other structures are seen embodiment 8
Embodiment 15 sees Figure 47, Figure 48, Figure 49
Described free-form surface lens structure is, free-form surface lens 35 is a hollow body, and the bottom surface is light incident one side, and hollow concave surface section edges wire shaped is circular arc or parabola.
Such structure can make incident light, and refraction produces dispersion effect through lens, be convenient to light is enlarged range of exposures as requested, improve the light distribution consistency degree in throw territory and realize the light distribution effect preset being applicable to spaces illuminations such as road, tunnel, square, factory, advertisement, mine by changing the concavo-convex curvature of lens surface.Other structures are seen embodiment 1
Embodiment 16 sees Figure 50, Figure 51, Figure 52
Described free-form surface lens structure is, free-form surface lens 36 is a hollow body, and the bottom surface is light incident one side, and hollow concave surface section edges wire shaped is circular arc or parabola.
Such structure can be implemented on the basis of extensive illumination concentration degree and the brightness of illumination of elliptical region in the middle of in the irradiation area being strengthened light, and can realize the light distribution effect preset by changing the concavo-convex curvature of lens surface.Be applicable to indoor and outdoor spaces illuminations such as factory floor, warehouse, road, tunnel, view, advertisement.Other structures are seen embodiment 6.
Claims (14)
1, a kind of free-form surface lens is characterized in that, free-form surface lens (2) is arranged on the position of LED direction of illumination that the great power LED that adopts single-chip package or the integrated encapsulation of multicore sheet is the light fixture of light source.
2, according to the described a kind of free-form surface lens of claim 1, it is characterized in that, described free-form surface lens structure is, free-form surface lens (21) is a solid, the bottom surface is the plane, is shaped as circle, mirror body light output surface middle part projection (211) 1, middle part projection is connected with projection (212) all around, and protruding (211) highly in the middle part of projection (212) highly was lower than.
According to the described a kind of free-form surface lens of claim 1, it is characterized in that 3, described free-form surface lens structure is, free-form surface lens (22) is a solid, and the bottom surface is the plane, is shaped as circle, free-form surface lens (22) light output surface centre indent, projection all around.
4, according to the described a kind of free-form surface lens of claim 1, it is characterized in that, described free-form surface lens structure is, free-form surface lens (23) is a solid, the bottom surface is the plane, be shaped as circle, free-form surface lens (23) light output surface is three projectioies, and middle part projection (231) height greater than both sides projection (232) highly; Connect by the indent arc transition between the boss.
According to the described a kind of free-form surface lens of claim 1, it is characterized in that 5, described free-form surface lens structure is, free-form surface lens (24) is a solid, and the bottom surface is the plane, is shaped as circle, free-form surface lens (24) cross sectional shape is that its edge line is a parabolic shape.
According to the described a kind of free-form surface lens of claim 5, it is characterized in that 6, described free-form surface lens structure is, free-form surface lens (25) is a hollow body, and hollow section edges line is parabola or camber line shape shape.
7, according to the described a kind of free-form surface lens of claim 1, it is characterized in that, described free-form surface lens structure is, free-form surface lens (26) is a solid, the bottom surface is the plane, is shaped as circle, and there is a microscler projection (261) at free-form surface lens (26) exiting surface middle part, projection (261) is connected with a circle projection (262) all around, and projection (262) is higher than projection (262).
According to the described a kind of free-form surface lens of claim 1, it is characterized in that 8, described free-form surface lens structure is, free-form surface lens (27) is a solid, and the bottom surface is the plane, is shaped as circle, the two side portions projection of free-form surface lens (27) light output surface, middle indent.
9, according to the described a kind of free-form surface lens of claim 1, it is characterized in that, described free-form surface lens structure is, free-form surface lens (28) is a solid, and the bottom surface is the plane, is shaped as circle, the mid portion and the two side portions of free-form surface lens (28) light output surface are curved protrusion, the height of middle strip projected parts (281) is higher than the height of both sides projection (292), is connected middle strip projected parts (281) both sides indents (283) between the projection by the inner sunken face transition.
10, according to the described a kind of free-form surface lens of claim 1, it is characterized in that, described free-form surface lens structure is, free-form surface lens (29) is a solid, the bottom surface is the plane, be shaped as circle, free-form surface lens (29) is oval at the X-axis cross sectional shape, is the shaped form of both sides indent in the Y-axis cross section.
According to the described a kind of free-form surface lens of claim 10, it is characterized in that 11, described free-form surface lens structure is, free-form surface lens (30) is a hollow body, and in X, Y-axis cross section, hollow edge line shape is parabola or arc shape.
12, according to claim 2 or 3 or 4 or 7 or 8 or 9 described a kind of free-form surface lens, it is characterized in that described free-form surface lens structure is that free-form surface lens (31) is a hollow body, the bottom surface is light incident one side, and hollow concave surface section edges wire shaped is circular arc or parabola.
According to the described a kind of free-form surface lens of claim 12, it is characterized in that 13, described LED (3) is fixed on the lamp body (1), free-form surface lens (2) is positioned at LED (3) direction of illumination; Free-form surface lens (2) is provided with flange (9), and trim ring (8) is pressed on the flange, fixedlys connected with lamp body (1) by bolt (6), and LED (3) is sealed between lamp body and the free-form surface lens (2); Bolt (7) passes support (4) fixedlys connected with lamp body (1) trailing flank, and support (4) is rotationally connected with lamp body (1); Lead (5) is connected with terminals on the LED (3) by the wire guide on the lamp body by the lamp body rear portion.
14, according to claim 1 or 5 or 6 or 10 or 11 described a kind of free-form surface lens, it is characterized in that described LED (3) is fixed on the lamp body (1), free-form surface lens (2) is positioned at LED (3) direction of illumination; Free-form surface lens (2) is provided with flange (9), and trim ring (8) is pressed on the flange, fixedlys connected with lamp body (1) by bolt (6), and LED (3) is sealed between lamp body and the free-form surface lens (2); Bolt (7) passes support (4) fixedlys connected with lamp body (1) trailing flank, and support (4) is rotationally connected with lamp body (1); Lead (5) is connected with terminals on the LED (3) by the wire guide on the lamp body by the lamp body rear portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101705531A CN101440928A (en) | 2007-11-19 | 2007-11-19 | Free curved surface lens |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101705531A CN101440928A (en) | 2007-11-19 | 2007-11-19 | Free curved surface lens |
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| CN101440928A true CN101440928A (en) | 2009-05-27 |
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2007
- 2007-11-19 CN CNA2007101705531A patent/CN101440928A/en active Pending
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