CN101660676A - Lamp - Google Patents
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- CN101660676A CN101660676A CN200910167469A CN200910167469A CN101660676A CN 101660676 A CN101660676 A CN 101660676A CN 200910167469 A CN200910167469 A CN 200910167469A CN 200910167469 A CN200910167469 A CN 200910167469A CN 101660676 A CN101660676 A CN 101660676A
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Abstract
A lamp is provided with a light guiding element (21) and light sources (26). The light guiding element (21) includes: light incident planes (22i); reflecting plane portions (28); and light sources (26) for respectively emitting light to the light incident planes (22i). Light entered from the light incident planes (22i) into an interior of the light guiding element (21) is reflected on the reflecting plane portions (28) towards a front of the lamp for output. The light sources (26) respectively emit light to the light incident planes (22i). The light guiding element (21) is configured by a combination of a plurality of light guiding plane portions (22) which guide the light that has entered from the light incident planes (22i) towards the front of the lamp at different inclined angles.
Description
Technical field
The present invention relates to a kind of lamp that comprises light-guide device, it relates more specifically to a kind of lamp, and this lamp not only strengthens lamp utilization ratio and lamp delivery efficiency when light-guide device and light source are in illumination condition, and when it throw light on the design-related effect of enhancing lamp.
Background technology
In auto lamp, be provided with the lamp that utilizes light-guide device structure as the effect relevant that is used to strengthen lamp with design.For example, disclosed a kind of lamp in the patent documentation 1, wherein, step-like plane of reflection portion is formed on the dorsal part place of light-guide device, enters the place ahead reflection that light-guide device inside is guided through the lamp of light in plane of reflection portion of this light-guide device so that be allowed to from the light-guide device lower surface.In this lamp, owing to produced a kind of mode that illuminates that plane of reflection portion is shone brightly, so when the time from anterior observation lamp, the pattern structure of plane of reflection portion can at random form, thus, can easily obtain such lamp, promptly this lamp lamp that can be formed on the design aspect excellence illuminates pattern.In the lamp of constructing in the above described manner, it has adopted such structure, a part that is light-guide device is bearing in the lamp housing securely, the zone that the quilt of light-guide device supports securely is formed into the light plane of incidence, light is allowed to enter this light-guide device from this light plane of incidence, the light of light emitted is directed into the inside of light-guide device from the light plane of incidence, and wherein this light source for example is made of LED element (one or more) and is arranged in the face of the light plane of incidence.In patent documentation 1, the bottom of light-guide device is bearing on the lamp housing securely, and the LED arrangements of elements is in the position that is positioned under this lamp housing, and the lower surface of light-guide device is made for the light plane of incidence.
＜patent documentation 1:JP-A-2007-227356 〉
In having the lamp of light-guide device, for must be big with the area design of light-guide device and in order in the wide region of photocon, to obtain highlight strength, can adopt a kind of like this structure, wherein, a plurality of light sources are with in a plurality of parts that are arranged on photocon, its mode is in the face of this light-guide device, thereby light enters the inside of light-guide device from light source.As an example, the lamp with light-guide device and a plurality of light sources shown in Fig. 6 (b) as correlation technique of the present invention (it is not a prior art).In the lamp of Fig. 6 (b), the plane light-guide device 21A that is arranged in the lamp housing is arranged to, light-guide device 21A edge tilts with respect to the vertical direction of the optical axis L x of lamp, and from the light of LED element 26 output assemble by convergent lens 27 in case be incident on forming of light-guide device 21 in the thicker light-guiding plane portion 22, wherein, these LED elements are arranged to upper surface and the lower surface of facing light-guide device respectively.In addition, step-like (stepped) plane of reflection 28a of portion, 28b are formed on the rear surface of light-guiding plane portion 22 of light-guide device 21A of guiding light, reflect on the 28a of plane of reflection portion, 28b so that be conducted through the light of light-guiding plane portion 22, so that export the light that is reflected to the place ahead of lamp along optical axis Lx.By this structure, from the light of light source light-guide device 21A in a big way on be directed and reflect so that from light-guide device 21A output, make the lamp that can obtain to have on the whole highlight strength thus.
By way of parenthesis, when light-guide device 21A is arranged such that when vertically tilting with respect to optical axis Lx as mentioned above, promptly, when the light-guiding plane portion 22 of the light-guide device of guiding light arranges with required angle with respect to vertical direction, light enters from the upper surface and the lower surface of light-guiding plane portion 22 thus, is used for the angle that is designed to make the light that so enters to be reflected towards the direction of following optical axis Lx from the angle on the surface of the 28a of plane of reflection portion, 28b that the light that each end face enters reflects with being allowed to.Therefore, under the situation of this light-guide device 21A, among the 28a of plane of reflection portion that light reflects from the upper surface, because the angle on the surface of the 28a of plane of reflection portion, that is, reflecting surface constitutes a small angle theta a with respect to the inclination angle of leaded light axis, so be content with very little in the critical condition of the light at plane of reflection portion 28a place, wherein, this leaded light axis constitutes the light conducting direction of the light that is conducted through light-guiding plane portion 22.But, because the angle on the surface of the light plane of reflection portion that light is reflected from the lower surface constitutes wide-angle θ b, so light can not be satisfied in the critical condition at plane of reflection portion 28b place, and the light that is directed of great majority can pass the 28b of plane of reflection portion, so that be leaked to light-guide device 21A outside.Therefore, the reflection efficiency at plane of reflection portion 28b place is reduced, and the delivery efficiency of the light of exporting towards lamp the place ahead also reduces.Especially, the luminous intensity of the light of launching in the lower area of light-guide device 21A becomes and is lower than the luminous intensity of the light of launching at upper area, not only make thus to help the utilization ratio of the light that throws light on to reduce, and be difficult on the whole zone of light-guide device, implement illumination with uniform light emission degree.
In addition, in comprising the lamp of above-mentioned light-guide device, because light-guide device directly is bearing at least a portion of lamp housing securely, so when light is directed into light-guide device, and in almost whole when surface of the bright light-guide device of illumination that is so directed, the zone of supporting this light-guide device also is illuminated.In this zone, the portion of being extended hides because the LED element is capped usually, so that be not exposed to the outside, so be allowed to be capped so that the light portion of in the zone that is hidden light-guide device being illuminated of being extended is blocked at light-guide device, light in this zone poor efficiency that becomes reduces the light utilization ratio thus thus.In addition, when attempting lamp is designed to after secondary light source places light-guide device, and the light that secondary light source sends passes light-guide device so that when being output to lamp anterior, part at light-guide device is capped so that under the situation that the portion of being extended hides, the also portion's of the being extended restriction of the light emitting area of secondary light source, the light utilization ratio of the light of launching in the secondary light source is reduced thus.Therefore, when limiting the light emitting area of light-guide device, need to consider the light emitting area of secondary light source, and be difficult at random design the light emitting area of light-guide device.Particularly, can't design the light emitting area of the littler light-guide device of opening in the wall extension.
Summary of the invention
The purpose of this invention is to provide a kind of lamp, it has not only strengthened the light output efficiency in the light-guide device, also guarantees to carry out the light emission with uniform luminance on the whole zone of light-guide device.
Another purpose of the present invention provides a kind of lamp, and it has strengthened the light utilization ratio in the light-guide device, and guarantees any design of the light emitting area of light-guide device.
One or more embodiment according to the present invention provide a kind of lamp, and it has light-guiding plane portion, supporting plane portion, light source and extension.This light-guiding plane portion is bearing in the lamp housing.This light-guiding plane portion comprises: the light plane of incidence is arranged at least a portion of end face of light-guiding plane portion and is used for light is directed to the inside of light-guiding plane portion; With plane of reflection portion, be arranged on the rear side of light-guiding plane portion and be used for light to the anterior reflects guided of lamp.Supporting plane portion is a printing opacity.Supporting plane portion is at least in part along the periphery edge setting of light-guiding plane portion.Supporting plane portion with light-guiding plane portion be bearing in the isolated zone of the inner periphery surface of lamp housing in.It is relative with the light plane of incidence that light source is placed as.Extension has opening, and light-guiding plane portion is exposed by this opening.The mode that extension is suitable at least not being exposed to light source lamp housing the place ahead covers and hiding light source.
According to said structure, because light-guiding plane portion is supported in supporting plane portion place, wherein this supporting plane portion is arranged on the part of light-guiding plane portion, its state is that the inner rim part of light-guiding plane portion and lamp housing opening spaced apart and that light-guiding plane portion passes through in the extension exposes, so light-guiding plane portion is limited to the opening inboard in the lamp housing, thus, light-guiding plane portion is arranged to light-guiding plane portion and floats in the air at lamp housing.Because light-guiding plane portion is arranged in the opening in the extension, thus send can light from the whole surface output of light-guiding plane portion, and the light utilization ratio is enhanced.In addition, be restricted to by the light emitting area in the light-guiding plane portion in the arbitrary region in the opening that is arranged in the extension, light emitting area can be designed as the light emission surface with any design, and the structure that is not extended the opening in the portion limits, and the special property and the conspicuousness of lamp are strengthened.
In lamp, supporting plane portion can form with light-guiding plane portion as thin portion and around the whole periphery of light-guiding plane portion, the thickness of this thin portion is thinner than the thickness of light-guiding plane portion.
According to above-mentioned feature, because light-guiding plane portion can be supported on the lamp housing at supporting plane portion place, and this supporting plane portion is set to the whole periphery around light-guiding plane portion, so bearing strength can increase, to be used for the firm support of light-guiding plane portion, thus, even when vehicle travels, produce vibration, light-guiding plane portion can not be shifted yet, and can guarantee the illumination condition of lamp thus.In addition, because plane of reflection portion is in the bright illumination state, and in light-guiding plane portion, the part of the light that is directed is reflected unevenly so that light-guiding plane portion is illuminated slightly, so the illuminated area in light-guiding plane portion seems aloft to float in lamp housing, thus, can strengthen the effect relevant with design.
Lamp can comprise the secondary light source at the rear side place that is arranged on light-guiding plane portion.Can pass light-guiding plane portion and output to the place ahead of lamp housing from the light of secondary light source output.
In said structure, because supporting plane portion has light transmission features, even the open area at extension is designed in any way, light from secondary light source also can be exported to the place ahead of second housing in the whole zone of open area, and light-guiding plane portion can be so that size and pattern illuminate the feasible thus special property and the conspicuousness that can obtain the lamp illumination condition when lamp is lighted in the open area of extension arbitrarily.
In addition, according to one or more embodiment of the present invention, provide a kind of lamp, it has light-guide device and light source.Light-guide device comprises: the light plane of incidence; Plane of reflection portion; Be used for respectively to the radiative light source of light plane of incidence.The light the place ahead to lamp in plane of reflection portion that enters into light-guide device inside from the light plane of incidence is reflected, so that output.Light source is emitted to light the light plane of incidence respectively.Light-guide device is by the assembly structure of a plurality of light-guiding plane portion, the light that these light-guiding plane portions will enter from the light plane of incidence to the place ahead of lamp with different inclination angle guiding.
According to said structure, since the light that is conducted through a plurality of light-guiding plane portion that constitutes light-guide device along a plurality of incline directions to the place ahead of lamp guiding, so the angle of the plane of reflection portion that the light that will be directed reflects to the place ahead of lamp can form low-angle with respect to the channeling direction of light, so that satisfy the critical angle condition, thus, lamp may be implemented as the reflection efficiency that not only strengthens at plane of reflection portion place, also illuminates on the whole zone of light-guide device with uniform brightness.
In lamp, light-guiding plane portion vertically faces with each other, so that light-guide device has the cross section to outstanding roughly " V " shape in the front portion of lamp.
For example, light-guide device is made of acclivitous light-guiding plane portion and downward-sloping light-guiding plane portion, so that form horizontal ridge in its front surface side, the upper surface of each light-guiding plane portion and lower surface are formed into the light plane of incidence, and at least one or a plurality of LED element as light source levels be placed on each light plane of incidence place.When taking place in this case, top light plane of incidence and bottom light plane of incidence are formed into and are parallel to described ridge, and based on this, a plurality of light sources preferably are arranged on the imaginary line in the mode of straight line, and this imaginary line extends along the incident light plane.
In addition, when vertical cross-section was observed, light plane of reflection portion was constructed to rectilinear step-like reflecting surface, and its channeling direction with respect to light tilts, and arranges along a line along ridge especially.Light from the LED element on upside that is arranged in light-guide device and the downside is conducted through each upper and lower light-guiding plane portion, in each plane of reflection portion, reflect then with high efficiency, be used for to the place ahead of lamp output, make it possible to achieve a kind of like this lamp thus, wherein, the upper area of light-guide device and lower area illuminate with highlight strength and brightness uniformly.
In lamp, light-guide device can comprise on the neighboring area of light-guide device thin portion and by the thick portion on the thin portion region surrounded.This thick portion is constructed to light-guiding plane portion.The end face of the stepped portion between thick and thin portion can be constructed to the light plane of incidence.Light-guide device can be bearing on the lamp housing at the peripheral skirt place of thin portion.
According to above-mentioned feature, thick of light-guide device and thin portion are formed by transparent material, so that realize simple structure, the light-guide device that bearing strength can be supported on the lamp strengthens.In addition, owing to there is not light to be directed in the thin portion, so formed a kind of like this state, that is, only rear portion or plane of reflection portion are illuminated, thus, the outward appearance of lamp seems illuminated area and aloft floats, and makes thus can strengthen visual and obtain and design relevant effect.
Others of the present invention and advantage will become apparent by following description, accompanying drawing and claim.
Description of drawings
Fig. 1 is the front view of the afterbody Assembled lamp of exemplary embodiment.
Fig. 2 is the vertical cross-section along II-II line intercepting among Fig. 1.
Fig. 3 is the level cross-sectionn along III-III line intercepting among Fig. 1.
Fig. 4 is the schematic, exploded perspective view of exemplary embodiment.
Fig. 5 (a) is the exemplary front view of illumination condition that has shown the lamp of exemplary embodiment to 5 (c).
Fig. 6 (a) is the vertical cross-section diagram of major part of the lamp of exemplary embodiment.
Fig. 6 (b) is the vertical cross-section diagram of major part of the lamp of correlation technique.
Reference numeral is described
1 lamp housing
2 taillight unit
3 stop light unit (secondary light source)
4 direction signal lamp unit;
11 lamp main bodys
12 front shrouds
21 light-guide devices
22 thick (light-guiding plane portion)
23 thin portions (supporting plane portion)
The 25LED support
The 26T-LED element
27 convergent lenses
28 plane of reflection portions
TCL afterbody Assembled lamp
The specific embodiment
Exemplary embodiment of the present invention will be described.Fig. 1 is the front view of exemplary embodiment, and wherein, the present invention is applied to the right hand afterbody Assembled lamp TCL of motor vehicles, and Fig. 2 is the vertical cross-section along II-II line intercepting among Fig. 1, and Fig. 3 is the level cross-sectionn along III-III line intercepting among Fig. 1.In these figure, lamp housing is limited by lamp main body 11 and transparent front shroud 12, this lamp main body is mounted to the right-hand side at automotive vehicle body rear portion and forms container shapes, this main body in its front side (rear sides of motor vehicles) locate to open wide, this front shroud is attached to the open front of lamp main body 11.What this front shroud 12 formed is shaped as, and recedes at an upper portion thereof, and its mode is the projecting shape of coupling car body and along the horizontal direction bending, its mode is to comply with the lateral surface of car body, thereby constitutes the part of the body Structure of motor vehicles.In addition, the afterbody Assembled lamp TCL of exemplary embodiment is made of taillight unit 2, stop light unit 3 and turn signal lamp unit 4.Note, though omitted the description and the demonstration of left-hand side afterbody Assembled lamp at this, but because left-hand side afterbody Assembled lamp has the laterally symmetric construction with right-hand side afterbody Assembled lamp, so in the following description, when attempting understanding the structure of left-hand side afterbody Assembled lamp, only need on the right of the replacement on the left side.
Fig. 4 shows the schematic, exploded perspective view of right-hand side afterbody Assembled lamp TCL.Stop light unit 3 is arranged in the Background Region in lamp housing 1, and taillight unit 2 is arranged in before the stop light unit 3.Turn signal lamp unit 4 is arranged in the lower area at the place, front side of lamp housing 1 inside.In addition, extension 5 is arranged and is supported in the zone, front side of stop light unit, with acting on the virtual reflector (dummy reflector) that covers, with the neighboring area in the concealed hight housing, opening 51 with required size is set in the central area of extension 5, thus, stop light 3 and taillight unit 2 are exposed to the front portion of afterbody Assembled lamp TCL by this opening 51.Turn signal lamp unit 4 is arranged on the lower area at the place, front side of extension.
Stop light unit 3 for example is constructed to secondary light source of the present invention, and by S (parking)-main body 31, S-transparent lens 33 and a plurality of S-LED element 34 constitute, wherein, the S-main body has the S-reflector 32 that is integrally formed therewith and forms the container-like shape of essentially rectangular when this main body when this body front part is observed, this S-transparent lens be disposed in the open front of S-main body 31 and in this S-transparent lens required lens stage portion be formed on its front surface and the rear surface, these a plurality of S-LED elements are arranged and are bearing on the upper surface of S-main body 31 and the lower surface and each all is manufactured to the emission red light abreast along horizontal direction.S-main body 31 forms the step-like structure of level on its rear surface, and S-LED element 34 along continuous straight runs are provided with in step-like mode.S-reflector 32 forms has vertical cross sectional shape, and wherein, two parabolic mirrors are set to outstanding forward angled shape, and are installed in the focal position that the S-LED element of supporting on the circuit board 35 34 is supported on each parabolic mirror securely.S-LED element 34 is via not shown line powering, and this circuit is arranged on to be supported on the circuit board 35, and its mode is to illuminate when motor vehicles are braked applying.The red light of output reflects on S-speculum 32 when S-LED element 34 illuminates, so that be converged to parallel with the optical axis L x of lamp substantially light beam (pencil oflight), when transmitting by S-transparent lens 33 by being formed on the lens stage portion on the S transparent lens 33, light beam forms required light distribution pattern then, and finally transmitted by front shroud 12, so that output to the back of motor vehicle.At this, the shape and size of the opening 51 in the extension 5 are formed into and equal or slightly less than the shape and size of the S-transparent lens 33 of stop light unit 3, these shape and size are the shape and size when observing from the front portion.For this reason, when stop light unit 3 illumination, the whole zone that the outer shape that stop light unit 3 represents seems in the opening 51 of extension 5 all is illuminated the same.
In thin portion 23, the marginal portion of the feasible thin portion 23 of the shape that each LED support 25 has is bent into along thickness direction rises, partly locate to divide at six local edges altogether and form this LED support 25 along its whole peripheral skirt, these local edges partly are perpendicular to one another with laterally relative, here, be perpendicular to one another relative two local edges part in ground and relative transverse to each other four local edges partly and a plurality of red T (afterbody)-LED element 26 be supported on the inner surface of each LED support 25.At each LED support 25 place, T-LED element 26 is arranged with the interval that equates along an imaginary line in the mode of straight line, this imaginary line extends along thick 22 end face 22i, the light plane of departure orientation of these T-LED elements is with respect to end face 22i approximate vertical, promptly, the orientation is for to be bent into " V " shape direction along light-guide device 21, and supports these T-LED elements in the mode of exporting light in the direction.In addition, at each LED support 25 place, the banded convergent lens element 27 that has lens shape on the cross section integrally is fixed on the position in the face of the light emission surface of T-LED element 26, as optical component of the present invention.Because it is more outside than the edge of opening of the opening in the extension 5 51 that these T-LED elements 26 and convergent lens element 27 are arranged to, so they are not extended portion 5 and are exposed to the place ahead.
Will be with reference to the detailed construction of figure 2,3 and 6 (a) description light-guide device.Because the difference with on the gauge of thin portion 23 has produced step-like portion along thick 22 periphery edge, thick 22 is constructed to the light plane of incidence at step-like end face 22i that locates.In these light plane of incidences 22i, vertically the orientation of the light plane of incidence 22i of Bu Zhiing roughly with the horizontal-extending ridge almost parallel of the light-guiding plane portion 22 that forms " V " shape.Be bearing in T-LED element on the inner surface of LED support 25 via not shown line powering, and each light plane of departure of T-LED element 26 is arranged to via convergent lens 27 in the face of light plane of incidence 22i.Convergent lens 27 forms narrow long plate shape shape, and it extends along light plane of incidence 22i of thick 22, and this convergent lens also utilizes binding agent etc. to integrate with the inner surface of thin portion 23.That part of the form spherical shape relative convergent lens 27 with light plane of departure T-LED element 26, and be converted into the light beam of almost parallel light by convergent lens 27 from the red light of each T-LED element 26 output, enter thick 22 from light plane of incidence 22i then, so that be conducted through thick 22 inside.
Be configured to for thick 22 as light-guiding plane of the present invention portion, and made by the combination of a plurality of light-guiding plane portion, these light-guiding plane portions vertically tilt with the angle of the needs optical axis L x with respect to lamp.Promptly, in the exemplary embodiment, as previously mentioned, roughly the first half that extends to thick 22 core from upper rim of thick 22 forward and downward-sloping so that be configured to light-guiding plane portion to the light channeling conduct that along inclined direction enters from upper T-LED element 26.In addition, thick 22 the roughly the latter half that partly extends to thick 22 core from lower limb forward and be inclined upwardly so that be configured to light-guiding plane portion to the light channeling conduct that along inclined direction enters from bottom T-LED element 26.These the first half and the latter half are combined as integral body and constitute " V " shape.That is, light-guide device 21 is made by the combination of two light-guiding plane portions, these light-guiding plane portions with differing tilt angles towards the place ahead of lamp leaded light.In addition, plane of reflection portion 28 is formed on thick 22 the rear surface of light-guide device 21, in other words, be formed on each rear surface of a plurality of light-guiding plane portion 22, its mode is to form triple ring patterns structures, and wherein, each all has the pattern structure of required forward observation from lamp three ring patterns, at this, the avette structure of representation class like the substantial horizontal elongation is set with one heart.This plane of reflection portion 28 forms in such a way: promptly, the rear surface of light-guiding plane portion forms the roughly rectilinear step-like structure (step-like structure) along cross-section, and this plane of reflection portion designs by this way: the angle on the surface of plane of reflection portion 28, and---being the angle of inclination of plane of reflection portion 28 with respect to its leaded light axis---is predetermined angle θ a, the direction that the light that this leaded light axis formation is conducted through light-guiding plane portion 22 is advanced, when that part of light that is conducted through light-guiding plane portion 28 inside projected in the plane of reflection portion 28 with this predetermined angle, light can be towards the place ahead of lamp reflection.In addition, since upper and lower light-guiding plane portion 22 with respect to optical axis Lx symmetry, so the surperficial angle θ a of each plane of reflection portion 28 is set to roughly the same.In addition, in the exemplary embodiment, though do not have shown in the drawings, but plane of reflection portion 28 has a lot of small-sized sphere stage portion, these stage portion are outstanding slightly backward in the mode of sphere, so that the light by reflection in plane of reflection portion 28 obtains required light angle, this light is at first assembled with low-angle, disperses the place ahead with avigation light then.
Turn signal lamp unit 4 has TS (the turn signal)-main body 41 of narrow elongation bending, this main body has the TS-reflector 42 that forms as one, this TS-reflector has parabolic shape of cross section and along continuous straight runs lengthening vertically, and a plurality of amber TS-LED elements 44 just are installed in the TS-main body 41 position under the plane of reflection of TS-reflector 42.TS-main body 41 is arranged to and is inserted in the opening 52, and this opening is arranged in the lower area of extension 5.In addition, the TS-transparent lens 43 of printing opacity is arranged on the front surface side of TS-main body 41, and its mode is flatly to extend along the lead edge portion of extension 5, and required lens stage portion is formed on the rear surface of TS-transparent lens 43.TS-LED element 44 is formed into via 41 power supplies of TS-main body, and its mode is that the mode with flicker illuminates when the direct of travel of indication motor vehicles.The amber light of output reflects on TS-reflector 42 when each TS-LED element 44 illuminates, so that be converted to collimated light beam basically, the scioptics stage portion forms required light distribution pattern when it passes TS-transparent lens 43 then, passes the rear that front shroud 12 is used to output to motor vehicle at last.
In the afterbody Assembled lamp TCL of structure as described below, when vehicle at night running and afterbody Assembled lamp TCL when illuminating as taillight, the T-LED element 26 of taillight unit 2 illuminates.Assemble by convergent lens element 27 from the red light of each T-LED element 26 outputs, and enter thick 22, promptly thick 22 end face from light-guide device 21 enters light-guiding plane portion 22, i.e. plane of incidence 22i is so that be conducted through light-guiding plane portion 22.With this generation, be conducted through light-guiding plane portion from the light along continuous straight runs that is arranged in the T-LED element 26 on light-guide device 21 left-hand sides and the right-hand side, the light from the T-LED element 26 on upside that is arranged in light-guide device 21 and the downside vertically is conducted through light-guiding plane portion 22 simultaneously.Particularly, for vertical direction, because light-guiding plane portion 22 forms in the mode that bends to " V " shape, so the light from upper T-LED element 26 guides by light-guiding plane portion 22 downwards and towards the place ahead with being tilted, and upwards guides by light-guiding plane portion 22 towards the place ahead from the light of bottom T-LED element 26 with being tilted.In addition, that part of light that is conducted through light-guiding plane portion 22 reflects towards the place ahead of light-guide device 21 in plane of reflection portion 28, so that be directed to along the direction of following optical axis Lx.Then, light is output to the place ahead from the front surface of light-guiding plane portion 22, passes through the opening 51 in the extension 5 then, and passes front shroud 12 at last, is used for exporting from afterbody Assembled lamp TCL.
Thereby, when taillight unit 2 illuminates, when from the illumination condition of afterbody Assembled lamp TCL forward observation afterbody Assembled lamp TCL, the outward appearance that light-guide device 21 shows is: light-guide device 21 is bright in the illumination that plane of reflection portion 28 sentences red high luminous intensity, and the light that luminous intensity is hanged down with blush in other zones of light-guide device 21 illuminates slightly or illuminates.In the exemplary embodiment, form triple ring patterns, when taillight unit 2 illuminates, show schematically that afterbody Assembled lamp TCL has shown the outward appearance that illuminates with triple ring patterns as Fig. 5 (a) because plane of reflection portion 28 is formed into.Take place with this and since on the part of light-guiding plane portion 22 brokenly that part of light of reflection output to the place ahead from light-guiding plane portion 22, whole light-guiding plane portion 22 is illuminated with kermesinus.Note, though do not have shown in the drawings, but in fact, that part of veiling glare that arrives thin portion 23 from light-guiding plane portion 22 reflects on the inner rim zone that is positioned near the thin portion the light-guiding plane portion 22 brokenly, so that output to the place ahead, it is bright with the illumination of the low luminous intensity of kermesinus that this zone also seems.In other words, the light-guiding plane portion 22 that is exposed to the light-guide device 21 in extension 5 split sheds 51 is illuminated with kermesinus, so that illumination condition is by visual, although but be illuminated around the thin portion 23 of light-guiding plane portion 22, but its poor visibility, based on this, the zone of the plane of reflection portion 28 that only has behind of light-guiding plane portion 22 is bright with the illumination of red high luminous intensity.Thus, when observing whole afterbody Assembled lamp TCL, produced such outward appearance: afterbody Assembled lamp TCL illuminates with a kind of like this state, that is, in the reddish zone in opening 51, strong pink triple ring patterns float in the air, this opening 51 constitutes the central area of the extension 5 of the peripheral edge region that covers lamp housing 1, thus, when taillight illuminated, the effect relevant with design of afterbody Assembled lamp TCL was enhanced.That is, can not produce the state that illuminated area is extended portion 5 restriction, and then, can strengthen the light utilization ratio, simultaneously, afterbody Assembled lamp TCL can be in zone arbitrarily illuminates with pattern arbitrarily, and is not extended the shape restriction of the opening 51 in the portion.
At this, when the state of reflection in the plane of reflection portion 28 of light that observation is directed at light-guide device 21, from the light along continuous straight runs of 26 outputs of left-hand side and right-hand side T-LED element and along continuous straight runs guiding in light-guiding plane portion 22 in 28 reflections of plane of reflection portion.But because light is with a kind of like this attitudinal reflexes, that is, light is dispersed with minute angle by the small-sized sphere stage portion along continuous straight runs in the plane of reflection portion 28, and the required horizontal illuminance angle of taillight can be satisfied.In addition, from upper and lower T-LED element 26 output and in light-guiding plane portion 22 vertically the light of guiding along the direction of following optical axis Lx in 28 reflections of plane of reflection portion.But, since with same time of its generation with a kind of like this attitudinal reflexes, that is, light is vertically dispersed with minute angle at the small-sized sphere stage portion place of plane of reflection portion 28, so the required vertical illumination angle of taillight can be satisfied.During the vertical reflection of the light that is directed when observation at plane of reflection portion 28 places, although forming, each plane of reflection portion 28 has a kind of like this angle, promptly from top or bottom T-LED element 26 enter light-guiding plane portion 22 in case the light that light-guiding plane portion 22, is directed with this angle along the direction reflection of following optical axis Lx, in this exemplary embodiment, because light-guiding plane portion 22 tilts so that form the part of outstanding forward " V " shape, in upper guide optical plane portion 22, light conducting direction is guiding forward and downwards, and plane of reflection portion 28 (surface angle θ a) is reduced with respect to the inclination angle of leaded light axis.Similarly, in lower guide optical plane portion 22, because light conducting direction guiding forward and upwards, (surface angle θ a) is reduced with same angle so plane of reflection portion 28 is with respect to the inclination angle of leaded light axis.By this structure, be conducted through light-guiding plane portion 22 and be equal to or less than critical angle at the reflection of light angle of plane of reflection portion 28 reflections from 26 outputs of upper and lower T-LED element along the direction of following optical axis Lx, or light has strengthened reflection efficiency thus to be equal to or less than the angle reflection of this critical angle.That is, compare with the light-guide device 21A of the correlation technique that shows among Fig. 6 (b), the reflection efficiency at plane of reflection portion 28 places is enhanced, so that the light utilization ratio of whole lamp is enhanced thus.In addition, by this structure, the reflection efficiency that comprises the plane of reflection portion place on the whole zone of light-guide device 21 of the upper area of light-guiding plane portion 22 and lower area becomes consistent, thus, produces the bright state of illumination of unanimity on the whole zone of light-guide device 21.By way of parenthesis, Lower Half light-guiding plane portion 22 not by the situation of guiding forward and upwards under, plane of reflection portion 28 is used to make the light in the reflection of plane of reflection portion 28 places big along the inclination angle change of the direction guiding of following optical axis Lx, light can not be satisfied by the critical angle of total reflection, thus, produce light at plane of reflection portion 28 places and propagate, and the reduction of reflection of light efficient, the light utilization ratio of whole lamp reduces thus.
In the afterbody Assembled lamp TCL of exemplary embodiment, by day during, when motor vehicles being braked and taillight unit 2 when not illuminating, the S-LED element 34 of stop light unit 3 illuminates as secondary light source of the present invention.From the red light of each S-LED element 34 outputs at S-reflector 32 along optical axis Lx with the state assembled to front-reflection, pass S-transparent lens 33, to form required light distribution pattern thus, after the light-guide device 21 that passes taillight unit 2, pass the opening 51 in the extension 5 then, pass the place ahead that front shroud 2 outputs to lamp subsequently.When this situation takes place, owing to not illuminating taillight unit 2, so the situation that the triple ring patterns in the light-guide device 21 are illuminated can not take place.Therefore, when observing whole afterbody Assembled lamp TCL, shown in Fig. 5 (b), the whole zone in the central area split shed 51 of the extension 5 that the periphery edge of lamp housing 1 is partly covered is bright with the illumination of red high luminous intensity, thus, afterbody Assembled lamp TCL is as stop light.That is, the illuminated area of stop light unit 3 can be regulated by the opening in the extension 51, this means that nearly all light of emission in stop light unit 3 is output, and the light utilization ratio is enhanced thus.
As previously mentioned, motor vehicles are braked and back light unit 2 when illuminating when night, stop light unit 3 is added into the illumination of back light unit 2 as the illumination of secondary light source.That is, when stop light unit 3 illuminates, S-transparent lens 33 is in when illuminating state thus, after the light-guide device 21 that passes the taillight unit 2 that is in the state of illuminating, light is by the opening 51 in the extension 5, then by front shroud 12, so that output to the place ahead of lamp.When this situation took place, the light of stop light unit 3 not only passed thick 22 as the light-guiding plane portion of light-guide device 21, and passed the thin portion 23 as supporting plane portion.Thus, when observing whole afterbody Assembled lamp TCL, produce a kind of like this illumination condition, promptly in this state, whole zone in the central area split shed 51 of the extension 5 that the periphery edge of lamp housing 1 is partly covered is bright with the illumination of redness intensity occurred frequently, shown in Fig. 5 (c), this illumination condition is superimposed upon on the illumination condition of triple ring patterns of breaking forth by back light unit 2, shown in Fig. 5 (a).In fact, because almost all being substituted of the illumination condition that the luminous intensity of taillight unit 2 is not high enough to and makes is feature with the triple ring patterns shown in Fig. 5 (a) when braking night by the illumination at 3 places, stop light unit, and pass through the luminous intensity of two lamp unit 2,3 of stack each other, afterbody Assembled lamp TCL is as the stop light of incandescent.With this generation, much less, show the outward appearance that triple ring patterns illuminate.
In addition, although do not illustrate, in the afterbody Assembled lamp TCL of exemplary embodiment, when the going direction changing of motor vehicles, the TS-LED element 44 of turn signal lamp unit is illuminated.Forwards reflect with converged state along optical axis Lx at TS-reflector 42 from the amber light of each TS-LED element 44 output, pass TS-transparent lens 43, forming required light distribution pattern thus, and pass front shroud 12 subsequently, to be output to the place ahead of lamp.When this a series of actions was finished, the whole surface of TS-transparent lens 43 was illuminated for amber, and afterbody Assembled lamp TCL is as turn signal lamp thus.Because this turn signal lamp unit 4 is disposed in the place, front side of extension 5, so the state that illuminates of the size of the opening 51 in the extension 5 and taillight unit 2 and stop light unit 3 will not be diverted 4 influences of signal lamp unit.
In the exemplary embodiment, when the T-LED of taillight unit 2 element 26 and convergent lens 27 are capped so that when being extended portion 5 and hiding, directly output to the place ahead of lamp owing to only must prevent the light of emission in T-LED element 26, so T-LED element 26 can be extended portion's 5 coverings and hide at least, and convergent lens 27 is not must be extended portion 5 to cover so that be hidden, and the structure that can adopt convergent lens to expose from opening 51 thus.
Although in the exemplary embodiment, light-guide device is formed has " V " shape vertical cross-section, and light-guide device also can be formed has " V " shape horizontal cross-section.Particularly, the side surface portion that the part of lamp extends to motor vehicles approaches the horizontal cross sectional geometry of " L " shape to have, perhaps it has so-called corner circular portion, in this lamp, be constructed to extend under the situation of this corner circular portion at light-guide device, form " V " shape of horizontal alignment by thick portion with light-guide device, in the horizontal zone of light-guide device the reflection efficiency at plane of reflection portion place with embodiment 1 in strengthened about the described mode same way as of vertical direction.
According to light-guide device of the present invention, except its horizontal or vertical cross section forms " V " shape, be directed into an inclination angle at the light of the light-guiding plane portion that is conducted through light-guide device under the situation in the place ahead of lamp, the angle on the surface of plane of reflection portion can design lessly, and when the light reflex time in plane of reflection portion that is directed, the light that is directed satisfies this critical angle condition.Thus, the cross section being formed " V " shape is not limited to such as level and the such both direction of vertical direction, thus, by light-guide device being made for the polyhedral part that a plurality of planar portions made up that formation is tilted by each direction along optical axis, the light that enters light-guide device from a plurality of LED elements can reflect with high efficiency along the direction of lamp axes in plane of reflection portion, and wherein said LED arrangements of elements is on this light-guide device periphery.
In addition, the present invention is not must be with relevant along the light-guide device of the whole peripheral set-up mode structure of light-guiding plane portion with supporting plane portion, and thus, the present invention can be applied to a kind of like this structure of tool equivalently, and promptly supporting plane portion is bearing in the lamp housing at this supporting plane portion place securely along the peripheral direction setting and the light-guide device of light-guide device at least in part.When this thing happens, light source, be that T-LED element 26 is arranged in the zone that is formed with supporting plane portion 23, T-LED element 26 also can be arranged to the peripheral end face that does not have supporting plane portion 23 in the face of light-guiding plane portion 22, and when this thing happens, T-LED element 26 was arranged dividually and is supported with light-guide device 21.In addition, be formed on the pattern that the layout architecture of the plane of reflection portion 28 in the light-guiding plane portion 22 is not limited to provide in the exemplary embodiment.
Lamp of the present invention can shall not be applied to the taillight unit that is arranged in afterbody Assembled lamp form in the exemplary embodiment, and can use it for other lamp unit.In addition, not to be limited to the stop light unit according to secondary light source of the present invention.The present invention can be used for any lamp, in this lamp, by being constructed to comprise the king light of the light-guide device that is in illumination condition, when the lamp (secondary light source) that separates with king light when illuminating, the light of She Chuing passes light-guide device therein, so that be output to the place ahead of lamp.In addition, the present invention is not limited to the afterbody Assembled lamp of exemplary embodiment, and can be applied to the lamp that is made of a plurality of lamps unit equivalently, and these lamp unit comprise the lamp unit that has utilized light-guide device.
In addition, the present invention must be configured to light element, in this light element, the LED element is around the whole periphery of light-guide device, and thus, the present invention can be applied to any structure equivalently, and in this structure, LED element or light source are arranged in the light element both sides that stride across light-guide device at least.
Claims (6)
1, a kind of lamp comprises:
Light-guiding plane portion (22) is bearing in the lamp housing (1) and comprises:
Light plane of incidence (22i) is arranged at least a portion of end face of light-guiding plane portion (22) and is used for light is directed to the inside of light-guiding plane portion (22); With
Plane of reflection portion (28) is arranged on the rear side of light-guiding plane portion (22) and is used for light to the place ahead of lamp reflects guided;
Supporting plane portion (23), it is a printing opacity, and at least in part along the periphery edge setting of light-guiding plane portion (22), wherein, supporting plane portion (23) is bearing in light-guiding plane portion (22) in the isolated zone of inner periphery surface with lamp housing (1);
Light source (26) is placed as relative with light plane of incidence (22i); With
Extension (5) has opening (51), and light-guiding plane portion (22) exposes by this opening, and this extension is suitable at least covering and hiding light source (26) in the mode that this light source (26) is not exposed to lamp housing (1) the place ahead.
2, lamp as claimed in claim 1, wherein, supporting plane portion (23) is as approaching portion (23) formed and centered on light-guiding plane portion (22) with light-guiding plane portion (22) whole periphery, and the thickness of this thin portion is thinner than the thickness of light-guiding plane portion (22).
3, lamp as claimed in claim 1 or 2 also comprises:
Secondary light source (3) is arranged on the rear side place of light-guiding plane portion (22), wherein, can pass light-guiding plane portion (22) and output to the place ahead of lamp housing (1) from the light of secondary light source (3) output.
4, a kind of lamp comprises:
Light-guide device (21) comprising:
Light plane of incidence (22i); With
Plane of reflection portion (28) wherein, enters into the inner light of light-guide device (21) from light plane of incidence (22i) and goes up to the place ahead of lamp reflection in plane of reflection portion (28), so that output; With
Light source (26) is used for launching light to light plane of incidence (22i) respectively,
Wherein, light-guide device (21) is by the assembly structure of a plurality of light-guiding plane portions (22), and the light that these light-guiding plane portions will enter from light plane of incidence (22i) guides with different inclinations angle towards the place ahead of lamp.
5, lamp as claimed in claim 4, wherein, light-guiding plane portion (22) vertically faces with each other, so that light-guide device (21) has the cross section to outstanding roughly " V " shape in the place ahead of lamp.
6, as claim 4 or 5 described lamps, wherein, light-guide device (21) be included on the neighboring area of light-guide device (22) thin portion (23) and by thick (22) on thin portion (23) region surrounded,
Wherein, these thick (22) are constructed to light-guiding plane portion (22),
Wherein, these thick (22) and should thin portion (23) between the end face of stepped portion be constructed to light plane of incidence (22i) and
Wherein, light-guide device (21) is bearing on the lamp housing (1) at the peripheral skirt place of thin portion (23).
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP214837/08 | 2008-08-25 | ||
| JP2008214837A JP5563209B2 (en) | 2008-08-25 | 2008-08-25 | Lamp |
| JP214838/08 | 2008-08-25 | ||
| JP2008214838A JP5563210B2 (en) | 2008-08-25 | 2008-08-25 | Lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101660676A true CN101660676A (en) | 2010-03-03 |
| CN101660676B CN101660676B (en) | 2012-05-30 |
Family
ID=41788865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101674693A Expired - Fee Related CN101660676B (en) | 2008-08-25 | 2009-08-25 | Lamp |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5563209B2 (en) |
| CN (1) | CN101660676B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287757A (en) * | 2011-07-23 | 2011-12-21 | 陈俊峰 | High-condensation reflecting structure capable of hiding light source and lamp with hidden light source |
| CN103453416A (en) * | 2012-06-04 | 2013-12-18 | 现代摩比斯株式会社 | Vehicle lamp |
| CN104534379A (en) * | 2013-08-19 | 2015-04-22 | 意大利车灯股份有限公司 | Automotive light |
| CN104884307A (en) * | 2012-12-28 | 2015-09-02 | 3M创新有限公司 | Stacked lightguide tailight article |
| CN107893963A (en) * | 2017-11-15 | 2018-04-10 | 上海小糸车灯有限公司 | Lamps apparatus for vehicle optical system |
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| JP5581824B2 (en) * | 2010-06-07 | 2014-09-03 | 市光工業株式会社 | Vehicle lighting |
| JP5657358B2 (en) * | 2010-12-02 | 2015-01-21 | スタンレー電気株式会社 | Vehicle lighting |
| JP5705583B2 (en) * | 2011-02-24 | 2015-04-22 | スタンレー電気株式会社 | Vehicle lighting |
| JP5846813B2 (en) * | 2011-09-07 | 2016-01-20 | 株式会社小糸製作所 | Vehicle lighting |
| JP6054093B2 (en) * | 2012-08-13 | 2016-12-27 | スタンレー電気株式会社 | Vehicle lighting |
| KR101361091B1 (en) * | 2012-09-05 | 2014-02-13 | 주식회사 에스엘 서봉 | Automotive head lamp |
| KR101361090B1 (en) * | 2012-09-05 | 2014-02-13 | 주식회사 에스엘 서봉 | Automotive head lamp |
| US9453630B2 (en) | 2012-08-31 | 2016-09-27 | Sl Corporation | Head lamp for vehicle and method of controlling the same |
| JP6584302B2 (en) * | 2015-11-17 | 2019-10-02 | スタンレー電気株式会社 | Light guide and vehicle lamp |
| JP6616669B2 (en) * | 2015-11-17 | 2019-12-04 | スタンレー電気株式会社 | Light guide and vehicle lamp |
| JP6758961B2 (en) * | 2016-07-06 | 2020-09-23 | 株式会社小糸製作所 | Lighting equipment |
| JP7011443B2 (en) | 2017-10-23 | 2022-02-10 | スタンレー電気株式会社 | Vehicle lighting |
| JP7202113B2 (en) * | 2018-03-14 | 2023-01-11 | 株式会社小糸製作所 | vehicle lamp |
| JP7503988B2 (en) | 2020-10-05 | 2024-06-21 | 林テレンプ株式会社 | Vehicle lighting device |
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| JPS59158204U (en) * | 1983-04-08 | 1984-10-24 | 株式会社小糸製作所 | Vehicle lights |
| JPH0252209U (en) * | 1988-10-05 | 1990-04-16 | ||
| JPH0284202U (en) * | 1988-12-16 | 1990-06-29 | ||
| JPH10338074A (en) * | 1997-06-06 | 1998-12-22 | World Auto Plate Kk | Luminous license plate |
| EP1167869A3 (en) * | 2000-07-01 | 2002-10-30 | Hella KG Hueck & Co. | Light guide |
| DE10101795A1 (en) * | 2001-01-17 | 2002-07-18 | Bosch Gmbh Robert | Flashing light, especially front flashing light, for motor vehicles has boundary light source in part of light conducting element in part of path of light from flashing light source |
| DE10238073A1 (en) * | 2002-08-21 | 2004-03-04 | Hella Kg Hueck & Co. | vehicle light |
| FR2853392B1 (en) * | 2003-04-04 | 2006-06-16 | Sli Miniature Lighting Sa | REAR LIGHT, ESPECIALLY STOP LIGHT FOR MOTOR VEHICLE |
| JP4311371B2 (en) * | 2005-05-09 | 2009-08-12 | 市光工業株式会社 | Vehicle lighting |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287757A (en) * | 2011-07-23 | 2011-12-21 | 陈俊峰 | High-condensation reflecting structure capable of hiding light source and lamp with hidden light source |
| CN103453416A (en) * | 2012-06-04 | 2013-12-18 | 现代摩比斯株式会社 | Vehicle lamp |
| CN103453416B (en) * | 2012-06-04 | 2017-07-28 | 现代摩比斯株式会社 | Vehicle lamp |
| CN104884307A (en) * | 2012-12-28 | 2015-09-02 | 3M创新有限公司 | Stacked lightguide tailight article |
| CN104534379A (en) * | 2013-08-19 | 2015-04-22 | 意大利车灯股份有限公司 | Automotive light |
| CN104534379B (en) * | 2013-08-19 | 2018-08-28 | 意大利车灯股份有限公司 | Automotive lamp |
| CN107893963A (en) * | 2017-11-15 | 2018-04-10 | 上海小糸车灯有限公司 | Lamps apparatus for vehicle optical system |
| CN107893963B (en) * | 2017-11-15 | 2024-05-03 | 华域视觉科技(上海)有限公司 | Light optical system for vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5563209B2 (en) | 2014-07-30 |
| CN101660676B (en) | 2012-05-30 |
| JP2010050008A (en) | 2010-03-04 |
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