CN102011947A - Led illuminating device - Google Patents
Led illuminating device Download PDFInfo
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- CN102011947A CN102011947A CN2009101951183A CN200910195118A CN102011947A CN 102011947 A CN102011947 A CN 102011947A CN 2009101951183 A CN2009101951183 A CN 2009101951183A CN 200910195118 A CN200910195118 A CN 200910195118A CN 102011947 A CN102011947 A CN 102011947A
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- Prior art keywords
- light
- led
- emitting face
- plane
- lighting device
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/72—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps in street lighting
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Abstract
The invention discloses an LED illuminating device comprising a main body part and an LED light-emitting module, wherein the LED light-emitting comprises a plurality of LEDs and a secondary optical lens; the secondary optical lens comprises a lens base and an optical processing module which comprises a light incident surface, a light emergent surface and a total reflection lateral surface; the light incident surface is a cylindrical surface; the light emergent surface comprises a curved-surface light emergent surface and inclined-plane light emergent surfaces; the curved-surface light emergent surface is a free curved surface formed by moving two curves which are mutually vertical in the optical axis direction; the two curves meet the following conditions that X=A2Z2+A4Z4+......+A0, and X=B2Y2+B4Y4+......+B0; the tracks of the inclined-plane light emergent surfaces meet the condition that Z=C1X+C0; the track of the total reflection lateral surface meets the condition that Z=D1X+D0; the curved-surface light emergent surface of the light emergent surface is arranged above the light incident surface and covers the whole light incident surface; and the inclined-plane light emergent surfaces are symmetrically arranged on two sides of the curved-surface light emergent surface, are arranged above the total reflection lateral surface and cove the whole total reflection lateral surface.
Description
[technical field]
The present invention relates to the LED lighting engineering, or rather, relate to a kind of LED lighting device.
[background technology]
Street lamp, Tunnel Lamp install on each road that need throw light in enormous quantities as the main member of outdoor lighting device, and it has become the main force of outdoor lighting power consumption.LED is as lighting source, and characteristic such as, long-life energy-conservation with its height has entered each lighting field.Therefore, arise at the historic moment as street lamp, the Tunnel Lamp of lighting source, and become the instrument of many road lightings very soon with LED.LED street lamp, LED Tunnel Lamp just more and more are subjected to national governments and people's favor with advantages such as its low energy consumption, long-life, environmental protection; especially the today of being becoming tight in energy crisis, electric power day, the advantage that LED street lamp, LED Tunnel Lamp are used in road lighting is self-evident.But with regard to present LED street lamp, LED Tunnel Lamp, also exist illumination range little, the pockety defective of intensity of illumination on the road surface, thus limited applying of LED street lamp, LED Tunnel Lamp to a certain extent.Therefore, need a kind of new technical scheme of design to overcome the problems referred to above.
[summary of the invention]
The technical problem that the present invention solves is to overcome the defective that prior art exists, provides a kind of and can reach that optical range is big, intensity of illumination is more even, and the LED lighting device with higher effective efficiency of light energy utilization.
The present invention is achieved by the following technical solutions: a kind of LED lighting device, comprise main part and some LED illuminating module, this illuminating module comprises the secondary optical lens that some LED, circuit board and corresponding described LED are provided with, described LED is installed on the circuit board, described secondary optical lens be installed in described LED directly over, described secondary optical lens comprises a lens mount and optical treatment module, described lens mount is formed with the led light source standing groove, it is characterized in that described optical treatment module comprises:
Light entrance face, this light entrance face are to form towards the pit surface that light direction forms, and described light entrance face is a cylinder;
Light-emitting face comprises curved surface light-emitting face and inclined-plane light-emitting face, and wherein, described curved surface light-emitting face is the free form surfaces that form in the last orthogonal curvilinear motion of normal direction (being optical axis) by two, and these two curves satisfy following condition: X=A
2Z
2+ A
4Z
4+ ... + A
0, X=B
2Y
2+ B
4Y
4+ ... + B
0Described inclined-plane light-emitting face is for being the tapered plane of symmetry axis with the optical axis, and its track satisfies following condition: Z=C
1X+C
0And
The total reflection side, this total reflection side is for being the tapered plane of symmetry axis with the optical axis, its track satisfies following condition: Z=D
1X+D
0
Curved surface light-emitting face in the described light-emitting face be arranged at described light entrance face directly over the position, cover the overall optical plane of incidence;
Described inclined-plane light-emitting face is arranged at the both sides of described curved surface light-emitting face symmetrically, and this inclined-plane light-emitting face be arranged on described total reflection side directly over, cover whole total reflection side;
Wherein, X is the optical axis coordinate, and Y, Z are Y, the Z coordinate in the three-dimensional coordinate of vertical formation with X-axis; In the aforesaid equation the item time and every coefficient (be A
2, A
4... A
0, B
2, B
4... B
0, C
1, C
0, D
1, D
0) according to the actual illumination demand, be optimized definite by ray tracing calculating, emulation.
Described light entrance face needs accurately to locate with the corresponding appearance and size of led light source.
The spacing that the optical axis center of described secondary optical lens and the center of described led light source chip overlap and keep adhering to specification.
Described secondary optical lens adopts PMMA, PC, and the injection moulding of ZEONEX optical plastic forms.
Described LED illuminating module also comprises a reflection shield, and the corresponding secondary optical lens of described reflection shield is correspondingly provided with some through holes, and this reflection shield outer surface forms one deck specular layer, and described reflection shield one end also is provided with some louvres.
Described LED illuminating module also is provided with the lower house that the good material of a heat conductivility is made, and described circuit board is fixed on the lower house.
Described LED illuminating module also is provided with a upper shell, this upper shell comprises a fixed edge and upwards protrudes out form transparent by fixed edge and go out light shield that described LED, secondary optical lens, circuit board and reflection shield are contained in the receiving space that is formed by this upper shell and the fixing back of lower house.
Described LED illuminating module also comprises a fixed frame, and described fixed frame, upper shell, lower house are fixedly connected.
Described LED lighting device is LED street lamp or LED Tunnel Lamp.
A kind of LED lighting device, comprise some secondary optical lens that main part, some LED and corresponding LED are provided with, described secondary optical lens be installed in described LED directly over, described secondary optical lens comprises a lens mount and optical treatment module, described lens mount is formed with the led light source standing groove, it is characterized in that described optical treatment module comprises:
Light entrance face, this light entrance face are to form towards the pit surface that light direction forms, and described light entrance face is a cylinder;
Light-emitting face comprises curved surface light-emitting face and inclined-plane light-emitting face, and wherein, described curved surface light-emitting face is the free form surfaces that form in the last orthogonal curvilinear motion of normal direction (being optical axis) by two, and these two curves satisfy following condition: X=A
2Z
2+ A
4Z
4+ ... + A
0, X=B
2Y
2+ B
4Y
4+ ... + B
0Described inclined-plane light-emitting face is for being the tapered plane of symmetry axis with the optical axis, and its track satisfies following condition: Z=C
1X+C
0And
The total reflection side, this total reflection side is for being the tapered plane of symmetry axis with the optical axis, its track satisfies following condition: Z=D
1X+D
0
Curved surface light-emitting face in the described light-emitting face be arranged at described light entrance face directly over the position, cover the overall optical plane of incidence;
Described inclined-plane light-emitting face is arranged at the both sides of described curved surface light-emitting face symmetrically, and this inclined-plane light-emitting face be arranged on described total reflection side directly over, cover whole total reflection side;
Wherein, X is the optical axis coordinate, and Y, Z are Y, the Z coordinate in the three-dimensional coordinate of vertical formation with X-axis; In the aforesaid equation the item time and every coefficient (be A
2, A
4... A
0, B
2, B
4... B
0, C
1, C
0, D
1, D
0) according to the actual illumination demand, be optimized definite by ray tracing calculating, emulation.
Compared with prior art, LED lighting device of the present invention passes through light entrance face and the shape of light-emitting face and the improvement of structure to the secondary optical lens of its use, one reflection shield reasonably is set simultaneously, in the Aspect Ratio and illuminance uniformity that guarantee the hot spot that secondary optical lens forms, improved effective efficiency of light energy utilization again significantly, the optimization of this photocurrent versus light intensity is especially obvious to the improvement effect of the illuminating effect of LED street lamp, LED Tunnel Lamp.
[description of drawings]
Fig. 1 is the front view of LED lighting device of the present invention.
Fig. 2 is the side view of LED lighting device of the present invention.
Fig. 3 is the front view of LED illuminating module in the LED lighting device of the present invention.
Fig. 4 is the perspective exploded view for LED illuminating module in the LED lighting device of the present invention.
Fig. 5 is the stereogram of secondary optical lens in the LED lighting device of the present invention.
Fig. 6 is the front view of secondary optical lens in the LED lighting device of the present invention.
Fig. 7 is the rearview of secondary optical lens in the LED lighting device of the present invention.
The view that Fig. 8 is Fig. 6 after LED is installed behind the cutaway view half-twist of A-A.
The view that Fig. 9 is Fig. 6 after LED is installed behind the cutaway view half-twist of B-B.
[specific embodiment]
See also Fig. 1 to shown in Figure 2, LED lighting device 7 of the present invention (especially refers to LED Tunnel Lamp, LED street lamp, what show in the present embodiment diagram is the LED Tunnel Lamp) comprise that a main part 6 and some LED illuminating module 9, described LED illuminating module 9 are configured in the light source installing space (not label) of described main part 6.
See also Fig. 3, shown in Figure 4, described LED illuminating module 9 comprises lower house 90, circuit board 91, sealing ring 92, reflection shield 93, upper shell 94, fixed frame 95, hold-down screw 96, light source led 3 and secondary optical lens 8.Wherein, described LED3 is installed on the circuit board 91, described secondary optical lens 8 be installed in described LED directly over, corresponding described secondary optical lens 8 is provided with corresponding through hole 930 on the described reflection shield 93, the outer surface of this reflection shield 93 is formed with one deck specular layer (not shown) in addition, and the end at this reflection shield 93 is provided with some louvres 931, described circuit board 91 is fixed on lower house 90 and (is made by the material that heat conductivility is good, what adopt in the present embodiment is aluminium) on, described upper shell 94 comprises a fixed edge 940 and upwards protrudes out form transparent by this fixed edge 940 and goes out light shield 941, this upper shell 94 is fixedly connected on the lower house 90, described LED3, circuit board 91, secondary optical lens 8, after installing, reflection shield 93 is contained in the receiving space (not label) of upper shell 94 and lower house 90 formation, described sealing ring 92 is used for about the sealing, housing 90, connection between 94, described fixed frame 95 (adopting stainless steel to make in the present embodiment) shape is consistent with the fixed edge 940 of upper shell 94, the part that correspondence goes out light shield 941 is a hollow, described fixed frame 95, upper shell 94, lower house 90 correspondences are respectively arranged with plurality of fixed hole (not label), and fix by screw 96, these technology have been the industry routine techniques, do not repeat them here.
Please join and read Fig. 5 in the lump to shown in Figure 9, described secondary optical lens 8 comprises a lens mount 1 and optical treatment module 2, described optical treatment module 2 be positioned at described lens mount 1 directly over the position, the two fixedly connected (the two is formed in one in the present embodiment), described lens mount 1 is formed with led light source standing groove 10, described optical treatment module 2 comprises a light entrance face 21, light-emitting face 21 and total reflection side 23, wherein said light entrance face 21 is to form towards the pit surface that light direction forms, and described light entrance face 21 is a cylinder; An and light-emitting face 22, this light-emitting face 22 comprises curved surface light-emitting face 221 and inclined-plane light-emitting face 222, wherein, described curved surface light-emitting face 221 is the free form surface that forms in the last orthogonal curvilinear motion of normal direction (being optical axis) by two, and these two curves satisfy following condition: X=A
2Z
2+ A
4Z
4+ ... + A
0, X=B
2Y
2+ B
4Y
4+ ... + B
0The track of described inclined-plane light-emitting face 222 satisfies following condition: Z=C
1X+C
0Described total reflection side 23 is for being the tapered plane of symmetry axis with the optical axis, and its track satisfies following condition: Z=D
1X+D
0Described light entrance face 21 is positioned at the middle part of whole secondary optical lens 8, the curved surface light-emitting face 221 in the described light-emitting face 22 be arranged at described light entrance face 21 directly over the position, cover the overall optical plane of incidence 21; Described inclined-plane light-emitting face 222 is arranged at the both sides of described curved surface light-emitting face 221 symmetrically, and this inclined-plane light-emitting face 222 be arranged on described total reflection side 23 directly over, cover whole total reflection side 23; Wherein, X is the optical axis coordinate, and Y, Z are Y, the Z coordinate in the three-dimensional coordinate of vertical formation with X-axis; In the aforesaid equation the item time and every coefficient (be A
2, A
4... A
0, B
2, B
4... B
0, C
1, C
0, D
1, D
0) according to the actual illumination demand, by ray tracing calculate, software emulation optimizes definitely repeatedly, so just can accomplish both to have guaranteed the Aspect Ratio and the illuminance uniformity of the hot spot of secondary optical lens 8 formation to improve effective efficiency of light energy utilization again.The light entrance face 21 of described secondary optical lens 8 needs accurately to locate with the corresponding appearance and size of led light source 3, guarantees the center of led chip and the spacing that optical axis center overlaps and both maintenances adhere to specification of described secondary optical lens 8.For ease of processing, reduce cost and weight reduction, described secondary optical lens 8 adopts the optical plastic injection mo(u)lding, and used optical plastic can be PMMA, PC, ZEONEX etc., the precision required according to described lens, cost performance, hear resistance is selected for use.
More than describing is embodiments of the invention only, forgives and can understand, and under the prerequisite that does not depart from the present invention's design, all should be included within the technical conceive of the present invention simple modification of the present invention and replacement.
Claims (10)
1. LED lighting device, comprise main part and some LED illuminating module, this illuminating module comprises the secondary optical lens that some LED, circuit board and corresponding described LED are provided with, described LED is installed on the circuit board, described secondary optical lens be installed in described LED directly over, described secondary optical lens comprises a lens mount and optical treatment module, described lens mount is formed with the led light source standing groove, it is characterized in that described optical treatment module comprises:
Light entrance face, this light entrance face are to form towards the pit surface that light direction forms, and described light entrance face is a cylinder;
Light-emitting face comprises curved surface light-emitting face and inclined-plane light-emitting face, and wherein, described curved surface light-emitting face is the free form surfaces that form in the last orthogonal curvilinear motion of normal direction (being optical axis) by two, and these two curves satisfy following condition: X=A
2Z
2+ A
4Z
4+ ... + A
0, X=B
2Y
2+ B
4Y
4+ ... + B
0Described inclined-plane light-emitting face is for being the tapered plane of symmetry axis with the optical axis, and its track satisfies following condition: Z=C
1X+C
0And
The total reflection side, this total reflection side is for being the tapered plane of symmetry axis with the optical axis, its track satisfies following condition: Z=D
1X+D
0
Curved surface light-emitting face in the described light-emitting face be arranged at described light entrance face directly over the position, cover the overall optical plane of incidence;
Described inclined-plane light-emitting face is arranged at the both sides of described curved surface light-emitting face symmetrically, and this inclined-plane light-emitting face be arranged on described total reflection side directly over, cover whole total reflection side;
Wherein, X is the optical axis coordinate, and Y, Z are Y, the Z coordinate in the three-dimensional coordinate of vertical formation with X-axis; In the aforesaid equation the item time and every coefficient (be A
2, A
4... A
0, B
2, B
4... B
0, C
1, C
0, D
1, D
0) according to the actual illumination demand, be optimized definite by ray tracing calculating, emulation.
2. LED lighting device as claimed in claim 1 is characterized in that: described light entrance face needs accurately to locate with the corresponding appearance and size of led light source.
3. LED lighting device as claimed in claim 2 is characterized in that: the spacing that the optical axis center of described secondary optical lens and the center of described led light source chip overlap and keep adhering to specification.
4. LED lighting device as claimed in claim 1 is characterized in that: described secondary optical lens adopts PMMA, PC, and the injection moulding of ZEONEX optical plastic forms.
5. LED lighting device as claimed in claim 1, it is characterized in that: described LED illuminating module also comprises a reflection shield, the corresponding secondary optical lens of described reflection shield is correspondingly provided with some through holes, this reflection shield outer surface forms one deck specular layer, and described reflection shield one end also is provided with some louvres.
6. LED lighting device as claimed in claim 5 is characterized in that: described LED illuminating module also is provided with the lower house that the good material of a heat conductivility is made, and described circuit board is fixed on the lower house.
7. LED lighting device as claimed in claim 6, it is characterized in that: described LED illuminating module also is provided with a upper shell, this upper shell comprises a fixed edge and upwards protrudes out form transparent by fixed edge and go out light shield that described LED, secondary optical lens, circuit board and reflection shield are contained in the receiving space that is formed by this upper shell and the fixing back of lower house.
8. LED lighting device as claimed in claim 7 is characterized in that: described LED illuminating module also comprises a fixed frame, and described fixed frame, upper shell, lower house are fixedly connected.
9. as each described LED lighting device among the claim 1-8, it is characterized in that: described LED lighting device is LED street lamp or LED Tunnel Lamp.
10. LED lighting device, comprise some secondary optical lens that main part, some LED and corresponding LED are provided with, described secondary optical lens be installed in described LED directly over, described secondary optical lens comprises a lens mount and optical treatment module, described lens mount is formed with the led light source standing groove, it is characterized in that described optical treatment module comprises:
Light entrance face, this light entrance face are to form towards the pit surface that light direction forms, and described light entrance face is a cylinder;
Light-emitting face comprises curved surface light-emitting face and inclined-plane light-emitting face, and wherein, described curved surface light-emitting face is the free form surfaces that form in the last orthogonal curvilinear motion of normal direction (being optical axis) by two, and these two curves satisfy following condition: X=A
2Z
2+ A
4Z
4+ ... + A
0, X=B
2Y
2+ B
4Y
4+ ... + B
0Described inclined-plane light-emitting face is for being the tapered plane of symmetry axis with the optical axis, and its track satisfies following condition: Z=C
1X+C
0And
The total reflection side, this total reflection side is for being the tapered plane of symmetry axis with the optical axis, its track satisfies following condition: Z=D
1X+D
0
Curved surface light-emitting face in the described light-emitting face be arranged at described light entrance face directly over the position, cover the overall optical plane of incidence;
Described inclined-plane light-emitting face is arranged at the both sides of described curved surface light-emitting face symmetrically, and this inclined-plane light-emitting face be arranged on described total reflection side directly over, cover whole total reflection side;
Wherein, X is the optical axis coordinate, and Y, Z are Y, the Z coordinate in the three-dimensional coordinate of vertical formation with X-axis; In the aforesaid equation the item time and every coefficient (be A
2, A
4... A
0, B
2, B
4... B
0, C
1, C
0, D
1, D
0) according to the actual illumination demand, be optimized definite by ray tracing calculating, emulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101951183A CN102011947A (en) | 2009-09-04 | 2009-09-04 | Led illuminating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101951183A CN102011947A (en) | 2009-09-04 | 2009-09-04 | Led illuminating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102011947A true CN102011947A (en) | 2011-04-13 |
Family
ID=43842223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101951183A Pending CN102011947A (en) | 2009-09-04 | 2009-09-04 | Led illuminating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102011947A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103196097A (en) * | 2013-04-17 | 2013-07-10 | 杭州奥通科技有限公司 | LED quadratic cylindrical lens for direct type backlight source |
| CN111174134A (en) * | 2019-03-12 | 2020-05-19 | 海洋王（东莞）照明科技有限公司 | Tunnel lamp |
-
2009
- 2009-09-04 CN CN2009101951183A patent/CN102011947A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103196097A (en) * | 2013-04-17 | 2013-07-10 | 杭州奥通科技有限公司 | LED quadratic cylindrical lens for direct type backlight source |
| CN103196097B (en) * | 2013-04-17 | 2016-01-20 | 杭州奥通科技有限公司 | A kind of LED quadric cylinder lens for downward back radiant |
| CN111174134A (en) * | 2019-03-12 | 2020-05-19 | 海洋王（东莞）照明科技有限公司 | Tunnel lamp |
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| PB01 | Publication | ||
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Application publication date: 20110413 |