CN101749618A - Semiconductor solid state luminous head light with far reaching light and low beam switching function - Google Patents
Semiconductor solid state luminous head light with far reaching light and low beam switching function Download PDFInfo
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- CN101749618A CN101749618A CN200810179290A CN200810179290A CN101749618A CN 101749618 A CN101749618 A CN 101749618A CN 200810179290 A CN200810179290 A CN 200810179290A CN 200810179290 A CN200810179290 A CN 200810179290A CN 101749618 A CN101749618 A CN 101749618A
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Abstract
The invention provides a semiconductor solid state luminous head light with far reaching light and low beam switching function, comprising a lamp holder, a luminous unit and a shadow shield; the lamp holder comprises a reflecting mirror and a lens arranged in front of the reflecting mirror; the luminous unit comprises a semiconductor solid state luminescent source assembled with the lamp holder, and the semiconductor solid state luminescent source is a light-emitting diode specifically; the shadow shield is arranged between the semiconductor solid state luminescent source and the lens, the shadow shield can move forwards and backwards relative to the luminous unit or move upwards and downwards, or swing in a pivoting way, so as to switch between the low beam position and the far reaching light position; the semiconductor solid state luminescent source can be matched with the movable shadow shield, the semiconductor solid state luminous head light can be applied to the head light with far reaching light and low beam switching function and has the advantages of small volume and high brightness.
Description
Technical field
The present invention relates to a kind of headlight, particularly a kind of luminous headlight of semiconductor solid-state with far and near lamp handoff functionality.
Background technology
Vehicle travels when setting out on a journey, for in response to different road conditions and sight line demand, headlight for vehicle can be done far, the switching of low beam, with projection-type (Poly-Ellipsoid System) headlight is example, usually comprise: the magnetic valve, that the light source, that a speculum, that defines an inner space is arranged on described speculum inside is arranged on described speculum below is arranged on described light source the place ahead and is subjected to described solenoid-driven and the shadow shield that pivots, and convex lens that are arranged on light source the place ahead.Described shadow shield driven by described magnetic valve and relatively before and after the light source pivot put, when light that shadow shield is positioned at different pivot pendulum positions and light source is sent be subjected to different block effect after, can be used as the switching of dipped headlights and high beam.And most widely used light source is high-intensity gas discharge lamp (HID at present, High Intensity Discharge) on the other hand, the development of high brightness LED is gradually ripe, because light emitting diode has advantages such as high brightness, power consumption is low, volume is little, light emitting diode generally is used on information, communication and the consumption electronic products at present, and is widely used on the car lights such as the 3rd brake light, indicator, taillight.Therefore, if can replace the HID head lamp, can both significantly improve for character such as the brightness of headlight, power consumption, volumes with light emitting diode.
Summary of the invention
Therefore, purpose of the present invention is promptly providing a kind of high brightness, power saving, volume little, and is having the luminous headlight of semiconductor solid-state of far and near lamp handoff functionality.
So, in order to achieve the above object, the invention provides a kind of luminous headlight of semiconductor solid-state with far and near lamp handoff functionality, it comprises: a lamp socket, a luminescence unit, and a shadow shield.Described lamp socket comprises a speculum, and lens that are positioned at described speculum the place ahead.Described luminescence unit comprises that one is arranged on the semiconductor solid-state illuminating source on the lamp socket, and the light that described semiconductor solid-state illuminating source sends is subjected to described mirror reflects and penetrates forward via described lens.Described shadow shield is between described semiconductor solid-state illuminating source and described lens, described shadow shield can described relatively luminescence unit moves forward and backward and a low beam position away from described semiconductor solid-state illuminating source, and moves between the lamp far away position of a described semiconductor solid-state illuminating source of vicinity.
In order to achieve the above object, the present invention also provides a kind of luminous headlight of semiconductor solid-state that far and near lamp handoff functionality is arranged, and it comprises: a lamp socket, and described lamp socket comprises a speculum, and lens that are positioned at described speculum the place ahead; One luminescence unit, described luminescence unit comprise that one is arranged on the lamp socket and is positioned at semiconductor solid-state illuminating source on the optical axis, and the light that described semiconductor solid-state illuminating source sends is subjected to described mirror reflects and penetrates forward via described lens; An and lightproof unit, described lightproof unit comprises a shadow shield between described semiconductor solid-state illuminating source and described lens, described shadow shield moves and makes the align low beam position of described optical axis of described shadow shield apical margin at one relative to described luminescence unit, and apical margin that makes described shadow shield is positioned between the lamp far away position of optical axis below and moves.
In order to achieve the above object, the present invention also provides a kind of luminous headlight of semiconductor solid-state that far and near lamp handoff functionality is arranged, and it comprises: a lamp socket, and described lamp socket comprises a speculum, and lens that are positioned at described speculum the place ahead; One luminescence unit, described luminescence unit comprise that one is arranged on the semiconductor solid-state illuminating source on the lamp socket, and the light that described semiconductor solid-state illuminating source sends is subjected to described mirror reflects and penetrates forward via described lens; An and shadow shield, described shadow shield is between described semiconductor solid-state illuminating source and described lens, described shadow shield comprise between left and right every a support end and pivot pendulum end, described shadow shield is a pivot center and front and back pivot pendulum with described support end, and then a low beam position that makes pivot pendulum end away from described speculum, and one make pivot pendulum end near moving between the lamp far away position of described speculum.
In order to achieve the above object, the present invention also provides a kind of luminous headlight of semiconductor solid-state that far and near lamp handoff functionality is arranged, and it comprises: a lamp socket, and described lamp socket comprises a speculum, and lens that are positioned at described speculum the place ahead; One luminescence unit, described luminescence unit comprise that one is arranged on the semiconductor solid-state illuminating source on the lamp socket, and the light that described semiconductor solid-state illuminating source sends is subjected to described mirror reflects and penetrates forward via described lens; An and lightproof unit, described lightproof unit comprises one between semiconductor solid-state illuminating source and described lens and define the fixture of a light-emitting window, and the shadow shield of a contiguous described fixture, described shadow shield is in a low beam position of covering described light-emitting window, and moves between a lamp far away position of not covering described light-emitting window.
Beneficial effect of the present invention is: can reach far away, low beam switching effect, have advantages such as high brightness, power saving, minimizing number of modules, volume are little, vibration resistance simultaneously concurrently
Description of drawings
Fig. 1 is the schematic side view of one first preferred embodiment of the semiconductor solid-state luminous headlight of the present invention with far and near lamp handoff functionality, and a lightproof unit of headlight described in the figure is positioned at a low beam position;
Fig. 2 is the schematic diagram of a similar Fig. 1, shows that simultaneously described lightproof unit is positioned at a lamp position far away;
Fig. 3 is the schematic diagram of one second preferred embodiment of the semiconductor solid-state luminous headlight of the present invention with far and near lamp handoff functionality, and a lightproof unit of headlight described in the figure is positioned at a lamp position far away, and imaginary line shows that described lightproof unit is positioned at a low beam position;
Fig. 4 is the schematic diagram of one the 3rd preferred embodiment of the semiconductor solid-state luminous headlight of the present invention with far and near lamp handoff functionality, and a lightproof unit of headlight described in the figure is positioned at a lamp position far away, and imaginary line shows that described lightproof unit is positioned at a low beam position;
Fig. 5 is the schematic top plan view of one the 4th preferred embodiment of the semiconductor solid-state luminous headlight of the present invention with far and near lamp handoff functionality;
Fig. 6 is the schematic perspective view of one the 5th preferred embodiment of the semiconductor solid-state luminous headlight of the present invention with far and near lamp handoff functionality, and a shadow shield of headlight described in the figure is positioned at a low beam position; And
Fig. 7 is the schematic diagram of a similar Fig. 6, shows that simultaneously described shadow shield is positioned at a lamp position far away.
Fig. 8 is that described first preferred embodiment is at the dipped headlights state, and at the light territory at 25 meters places, light source the place ahead distribution map, transverse axis is represented the level angle of the left and right sides, light source the place ahead among the figure, and the angle under the left longitudinal axis is marked with, right-hand scale indicate the illumination (unit is Lux) of each bar lines representative;
Fig. 9 is that described first preferred embodiment is at the light territory of high beam state distribution map;
Figure 10 is that described second preferred embodiment is at the light territory of high beam state distribution map.
Description of reference numerals: 1-lamp socket; The 11-speculum; The 12-lens; The 121-plane of incidence; The 2-luminescence unit; 21-semiconductor solid-state illuminating source; The 22-circuit board; The 3-lightproof unit; The 31-shadow shield; The 311-support end; 312-pivot pendulum end; The 32-action plate; The 321-support end; The 33-fixture; The 330-light-emitting window; The 331-fixed head; The L-optical axis.
The specific embodiment
About aforementioned and other technology contents, characteristics and effect of the present invention, in the following detailed description that cooperates with reference to five graphic preferred embodiments, can clearly present.Before the present invention is described in detail, be noted that in the following description content similar elements is to represent with identical numbering.
Consult Fig. 1,2, the present invention has first preferred embodiment of the luminous headlight of semiconductor solid-state of far and near lamp handoff functionality, be under different conditions, to project dipped headlights (Fig. 1) and high beam (Fig. 2), and comprise: a lamp socket 1, one and luminescence unit 2, a lightproof unit 3 of described lamp socket 1 assembling, and one connect and drive described lightproof unit 3 and move forward and backward and scheme unshowned drive unit, and the concrete example of described drive unit is a magnetic valve.
Described lamp socket 1 comprises: one is 1/4th ellipsoid shellies and the lower edge speculum 11, by an optical axis L approximately and is combined in described speculum 11 front sides and schemes unshowned lens frame, and lens 12 that are installed in described lens frame front side.The reflecting surface of described speculum 11 can be represented with a plurality of elliptic equations, also is that described speculum 11 is an elliptical reflector 11 more than.Described lens 12 are to be positioned at speculum 11 the place aheads with described lens frame assembling.
Described luminescence unit 2 comprises a semiconductor solid-state illuminating source 21, and the circuit board 22 of the described semiconductor solid-state illuminating source 21 of an electrical connection.Described semiconductor solid-state illuminating source 21 is assembled by circuit board 22 and described speculum 11, and is positioned on the described optical axis L.The semiconductor solid-state illuminating source 21 of present embodiment is a light emitting diode.
Described lightproof unit 3 is to assemble movably forward and backward by described relatively lamp socket 1, described lightproof unit 3 comprises a shadow shield 31 that uprightly is positioned at 12 on semiconductor solid-state illuminating source 21 and lens, and an action plate 32 that extends horizontally in speculum 11 belows from shadow shield 31 bottoms backward.
Consult Fig. 1, Fig. 8, lightproof unit 3 of the present invention can be driven and be moved forward and backward, described lightproof unit 3 and then change between a low beam position and a lamp position far away.When lightproof unit 3 is positioned at the low beam position of Fig. 1, described shadow shield 31 is away from described semiconductor solid-state illuminating source 21, the light that described semiconductor solid-state illuminating source 21 sends can be subjected to described speculum 11 reflections, part light covering or reflect via described lightproof unit 3 arranged afterwards, and part light is directly injected towards lens 12, the refraction of last rays pass through lens 12 also is projeced into place, described optical axis L below and the formation dipped headlights, and its light territory distributes as shown in Figure 8.
Consult Fig. 2, Fig. 9, when lightproof unit 3 is driven and level when moving to the lamp far away position of Fig. 2 backward, described shadow shield 31 contiguous described semiconductor solid-state illuminating sources 21, it is less that be subjected to the light that lightproof unit 3 covered this moment, light can project higher position and form high beam after reflecting via lens 12, and its light territory distributes as shown in Figure 9.
Because the semiconductor solid-state illuminating source 21 of present embodiment is a light emitting diode, described light emitting diode and HID lamp in the past are in comparison, have following advantage: light emitting diode is chemiluminescence, power consumption is low, reaction speed is fast, it is little to add its volume, demand on the fit applications is made the element of minimum or array easily, and light emitting diode is solid-state device and vibration resistance, therefore is applied on the headlight that far and near lamp switches, can reach that volume is little, the brightness advantages of higher.The headlight that general dipped headlights and high beam design respectively, need three groups of dipped headlights modules and four groups of high beam modules approximately, but the present invention is cooperated the switching of making the instant and near light lamp of moving of lightproof unit 3 by LED source, the whole luminous intensity demand that only needs four modules can reach the instant and near light lamp, so the present invention can reduce module number and reduces cost.
Consult Fig. 3, Figure 10, second preferred embodiment of the luminous headlight of semiconductor solid-state of the present invention, roughly the same with described first preferred embodiment, difference is: described lightproof unit 3 is for moving up and down, when lightproof unit 3 was positioned at the low beam position, it was provided with state identical with described first preferred embodiment (shown in Fig. 3 imaginary line).When lightproof unit 3 dropped to lamp far away position, its shadow shield 31 apical margins were positioned at the optical axis L below, and the light territory distributes as shown in figure 10.Present embodiment cooperates by semiconductor solid-state illuminating source 21 and described lightproof unit 3 moving up and down, can reach the purpose of instant and near light lamp switching equally, and its advantage is identical with described first preferred embodiment with effect, so no longer explanation.
Consult Fig. 4, the 3rd preferred embodiment of the luminous headlight of semiconductor solid-state of the present invention, roughly the same with described second preferred embodiment, difference is: described shadow shield 31 is to make the pivot center of oscillation and the pivot pendulum with a support end 321 that is positioned at the rear end of described action plate 32.When lightproof unit 3 is arranged in low beam position shown in the figure imaginary line, described action plate 32 is a level, the shadow shield 31 apical margins described optical axis L of aliging, when the downward pivots pendulum of lightproof unit 3 during to lamp position far away, described action plate 32 is for to be obliquely installed low early and high afterly, and the apical margin of shadow shield 31 is positioned at the optical axis L below.
Consult Fig. 5, the lightproof unit 3 of the 4th preferred embodiment of the luminous headlight of semiconductor solid-state of the present invention, only comprise that one uprightly is arranged at the shadow shield 31 of 12 on semiconductor solid-state illuminating source 21 and lens, described shadow shield 31 comprises a support end 311 that is positioned at the right side, and a pivot pendulum end 312 that is positioned at the left side, described pivot pendulum end 312 is pivot center and front and back pivot pendulum with described support end 311.When shadow shield 31 is positioned at low beam position shown in Fig. 5 imaginary line, one plane of incidence 121 of shadow shield 31 and described lens 12 is for be arrangeding in parallel, and pivot pendulum end 312 is away from described speculum 11, when lightproof unit 3 rotates backward an angle value and when being positioned at lamp far away position, the pivot of lightproof unit 3 pendulum end 312 is near described speculums 11.Consult Fig. 6,7, the lightproof unit 3 of the 5th preferred embodiment of the luminous headlight of semiconductor solid-state of the present invention comprises a fixture 33, and a shadow shield 31 that is arranged on described fixture 33 rear sides.Described fixture 33 comprise two between left and right every fixed head 331, described two fixed heads 331 define jointly one be positioned at central authorities light-emitting window 330.When described shadow shield 31 was positioned at the low beam position of Fig. 6, shadow shield 31 correspondences were also covered described bright dipping 330, and when shadow shield 31 moved to the lamp far away position of Fig. 7 to the right, described light-emitting window 330 was no longer covered.Need to prove that the fixed head 331 that the fixture 33 of present embodiment is provided with two block gaps is in order to define described light-emitting window 330, but fixed head 331 need not be defined as two when implementing, and for example can only be dug a hole by hollow out in the middle of the long slab piece that extends about a slice.And the move left and right of described shadow shield 31 is in order to cover light-emitting window 330 or not cover light-emitting window 330, also can perhaps shadow shield 31 being located at fixture 33 the place aheads and also can to left when therefore implementing.In sum, the present invention cooperates movably shadow shield 31 by semiconductor solid-state illuminating source 21, and then reaches far away, low beam switching effect, has advantages such as high brightness, power saving, minimizing number of modules, volume are little, vibration resistance simultaneously concurrently.
More than explanation is just illustrative for the purpose of the present invention, and nonrestrictive, those of ordinary skills understand; under the situation of the spirit and scope that do not break away from following claims and limited, can make many modifications, change; or equivalence, but all will fall within the scope of protection of the present invention.
Claims (11)
1. the luminous headlight of semiconductor solid-state with far and near lamp handoff functionality is characterized in that, comprises: a lamp socket, and described lamp socket comprises a speculum, and lens that are positioned at described speculum the place ahead; One luminescence unit, described luminescence unit comprise that one is arranged on the semiconductor solid-state illuminating source on the described lamp socket, and the light that described semiconductor solid-state illuminating source sends is subjected to described mirror reflects and penetrates forward via described lens; An and shadow shield, described shadow shield is between described semiconductor solid-state illuminating source and described lens, the described relatively luminescence unit of described shadow shield moves forward and backward and a low beam position away from described semiconductor solid-state illuminating source, and moves between the lamp far away position of a described semiconductor solid-state illuminating source of vicinity.
2. the luminous headlight of semiconductor solid-state with far and near lamp handoff functionality according to claim 1 is characterized in that described semiconductor solid-state illuminating source is a light emitting diode.
3. the luminous headlight of semiconductor solid-state with far and near lamp handoff functionality is characterized in that, comprises: a lamp socket, and described lamp socket comprises a speculum, and lens that are positioned at described speculum the place ahead; One luminescence unit, described luminescence unit comprise that one is arranged on the lamp socket and is positioned at semiconductor solid-state illuminating source on the optical axis, and the light that described semiconductor solid-state illuminating source sends is subjected to described mirror reflects and penetrates forward via described lens; An and lightproof unit, described lightproof unit comprises a shadow shield between described semiconductor solid-state illuminating source and described lens, described shadow shield moves and makes the align low beam position of described optical axis of described shadow shield apical margin at one relative to described luminescence unit, and apical margin that makes described shadow shield is positioned between the lamp far away position of optical axis below and moves.
4. the luminous headlight of semiconductor solid-state with far and near lamp handoff functionality according to claim 3 is characterized in that described shadow shield is vertical moving up and down.
5. the luminous headlight of semiconductor solid-state with far and near lamp handoff functionality according to claim 3, it is characterized in that, described lightproof unit more comprises an action plate that extends back from described shadow shield root edge, described shadow shield is that the rear end with described action plate is that fulcrum is swung, when described lightproof unit is positioned at the low beam position, described action plate is for being horizontally disposed with, and when described lightproof unit was positioned at lamp far away position, described action plate was to be obliquely installed low early and high afterly.
6. according to the described luminous headlight of semiconductor solid-state of each claim in the claim 3 to 5, it is characterized in that described semiconductor solid-state illuminating source is a light emitting diode with far and near lamp handoff functionality.
7. the luminous headlight of semiconductor solid-state with far and near lamp handoff functionality is characterized in that, comprises: a lamp socket, and described lamp socket comprises a speculum, and lens that are positioned at described speculum the place ahead; One luminescence unit, described luminescence unit comprise that one is arranged on the semiconductor solid-state illuminating source on the lamp socket, and the light that described semiconductor solid-state illuminating source sends is subjected to described mirror reflects and penetrates forward via described lens; An and shadow shield, described shadow shield is between described semiconductor solid-state illuminating source and described lens, described shadow shield comprise between left and right every a support end and pivot pendulum end, described shadow shield is a pivot center and front and back pivot pendulum with described support end, and then a low beam position that makes pivot pendulum end away from described speculum, and one make pivot pendulum end near moving between the lamp far away position of described speculum.
8. the luminous headlight of semiconductor solid-state with far and near lamp handoff functionality according to claim 7 is characterized in that described semiconductor solid-state illuminating source is a light emitting diode.
9. the luminous headlight of semiconductor solid-state with far and near lamp handoff functionality is characterized in that, comprises: a lamp socket, and described lamp socket comprises a speculum, and lens that are positioned at described speculum the place ahead; One luminescence unit, described luminescence unit comprise that one is arranged on the semiconductor solid-state illuminating source on the lamp socket, and the light that described semiconductor solid-state illuminating source sends is subjected to described mirror reflects and penetrates forward via described lens; An and lightproof unit, described lightproof unit comprises one between semiconductor solid-state illuminating source and described lens and define the fixture of a light-emitting window, and the shadow shield of a contiguous described fixture, described shadow shield is in a low beam position of covering described light-emitting window, and moves between a lamp far away position of not covering described light-emitting window.
10. the luminous headlight of semiconductor solid-state with far and near lamp handoff functionality according to claim 9 is characterized in that described semiconductor solid-state illuminating source is a light emitting diode.
11. according to claim 9 or the 10 described luminous headlight of semiconductor solid-state, it is characterized in that with far and near lamp handoff functionality, described fixture comprise two between left and right every fixed head, described two fixed heads define aforementioned light-emitting window jointly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810179290A CN101749618A (en) | 2008-12-16 | 2008-12-16 | Semiconductor solid state luminous head light with far reaching light and low beam switching function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810179290A CN101749618A (en) | 2008-12-16 | 2008-12-16 | Semiconductor solid state luminous head light with far reaching light and low beam switching function |
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| CN101749618A true CN101749618A (en) | 2010-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200810179290A Pending CN101749618A (en) | 2008-12-16 | 2008-12-16 | Semiconductor solid state luminous head light with far reaching light and low beam switching function |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256541A (en) * | 2012-02-15 | 2013-08-21 | 宁波比格斯通光电科技有限公司 | Vehicle lamp with integrated far and near light |
| WO2013120333A1 (en) * | 2012-02-15 | 2013-08-22 | 宁波比格斯通光电科技有限公司 | Headlamp with integrated high and low beam |
| CN103453421A (en) * | 2013-08-27 | 2013-12-18 | 郑州科仪科贸有限公司 | Composite near-far light integrated light source assembly |
| CN103574458A (en) * | 2012-07-18 | 2014-02-12 | 株式会社小糸制作所 | Vehicle headlamp |
| CN104169639A (en) * | 2012-02-16 | 2014-11-26 | 法雷奥照明公司 | Projector part comprising reflection means with reflection coefficient greater than 90% |
| CN104763960A (en) * | 2015-04-09 | 2015-07-08 | 上海理工大学 | Automobile headlamp and car comprising same |
| CN104864344A (en) * | 2015-06-08 | 2015-08-26 | 哈尔滨固泰电子有限责任公司 | Car LED headlamp light distribution device and method |
| CN105258060A (en) * | 2015-11-25 | 2016-01-20 | 海盐丽光电子科技有限公司 | Independent high beam LED automobile lens |
| CN107152646A (en) * | 2016-03-03 | 2017-09-12 | 郭骏贤 | Automobile headlamp with auxiliary lighting |
| CN108443823A (en) * | 2018-05-03 | 2018-08-24 | 吉林省蓝拓科技有限公司 | A kind of reflective laser car light of free form surface |
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2008
- 2008-12-16 CN CN200810179290A patent/CN101749618A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256541A (en) * | 2012-02-15 | 2013-08-21 | 宁波比格斯通光电科技有限公司 | Vehicle lamp with integrated far and near light |
| WO2013120333A1 (en) * | 2012-02-15 | 2013-08-22 | 宁波比格斯通光电科技有限公司 | Headlamp with integrated high and low beam |
| CN104169639A (en) * | 2012-02-16 | 2014-11-26 | 法雷奥照明公司 | Projector part comprising reflection means with reflection coefficient greater than 90% |
| CN103574458A (en) * | 2012-07-18 | 2014-02-12 | 株式会社小糸制作所 | Vehicle headlamp |
| CN103453421A (en) * | 2013-08-27 | 2013-12-18 | 郑州科仪科贸有限公司 | Composite near-far light integrated light source assembly |
| CN104763960A (en) * | 2015-04-09 | 2015-07-08 | 上海理工大学 | Automobile headlamp and car comprising same |
| CN104864344A (en) * | 2015-06-08 | 2015-08-26 | 哈尔滨固泰电子有限责任公司 | Car LED headlamp light distribution device and method |
| CN105258060A (en) * | 2015-11-25 | 2016-01-20 | 海盐丽光电子科技有限公司 | Independent high beam LED automobile lens |
| CN107152646A (en) * | 2016-03-03 | 2017-09-12 | 郭骏贤 | Automobile headlamp with auxiliary lighting |
| CN108443823A (en) * | 2018-05-03 | 2018-08-24 | 吉林省蓝拓科技有限公司 | A kind of reflective laser car light of free form surface |
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Application publication date: 20100623 |