CN101592303B - Rear loading LED module for motor vehicle rear assembled lamp - Google Patents
Rear loading LED module for motor vehicle rear assembled lamp Download PDFInfo
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- CN101592303B CN101592303B CN2009101418589A CN200910141858A CN101592303B CN 101592303 B CN101592303 B CN 101592303B CN 2009101418589 A CN2009101418589 A CN 2009101418589A CN 200910141858 A CN200910141858 A CN 200910141858A CN 101592303 B CN101592303 B CN 101592303B
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- printed circuit
- led
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
- F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
- F21S43/14—Light emitting diodes [LED]
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/20—Light sources comprising attachment means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
- F21K9/68—Details of reflectors forming part of the light source
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
- F21S45/40—Cooling of lighting devices
- F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings
Abstract
The invention discloses a rear loading LED module for motor vehicle rear assembled lamp. One or more LED are mounted on a printed circuit board, and the circuit board supplies power to the LED on outside part of a multi-faceted parabolic reflector and holds the LED mechanically. The light transmitted by the LED enters into a light propagation area that formed in reflective neighboring surface of two nested cylinders. The cylinders passes through a hole on peak of the reflector longitudinally from the LED at outside of the reflector, and extends to a reflector focal point. In some applications, the light propagation area can play the role of light beam uniform device to make light ejaculated from the light propagation area have basically consistent strength. Light from the light propagation area transmitted to an outreach reflector which guides most light to the parabolic reflector athwartships. The parabolic reflector makes light collimating and guides light longitudinally, and the light is ejaculated from the car lamp through a transparent cover. The parabolic reflector can be provided with a facet, and the facet can change direction to part reflected light angularly, and forms a necessary two-dimension angle distribution for outgoing beams.
Description
The cross reference of related application
That the regulation that the application compiles the 119th e money according to United States code the 35th requires is that on May 28th, 2008 submitted to, name is called the provisional application 61/056 of " SIDE ENTRY LED LIGHT MODULE FORAUTOMOTIVE REAR COMBINATION LAMP "; 738 priority is all incorporated it into this paper at this with way of reference.Clearly keep Paris Convention priority completely thus.
Technical field
The present invention relates to a kind of rear combination lamp that is used for the motor vehicle illuminator.
Background technology
For many years, motor vehicle adopts power lighting to be used for many functions always.For example, light provides the place ahead illumination (head lamp, auxiliary lamp), prompting (anterior stop light, the taillight at rear portion), signal (signal for turn, danger, Brake lamp, back-up lamp) and convenience (ceiling light, Dashboard illumination), only to indicate several kinds of application.In the past, incandescent lamp bulb is used for most or all lighting apparatus of motor vehicle always, and has some sizes, profile, wattage and the socket encapsulation is available.
In the last few years, light emitting diode (LED) had begun to appear in the illumination application of some motor vehicle.Compare with incandescent lamp bulb, LED power is littler, and the life-span is longer, and the heat of output still less, and this makes it be more suitable in motor vehicle, using.
In LED had introduced as the relatively short period since the light source, vehicle manufacturers was taked careful attitude always.Although they have produced interest to employing LED based on above-mentioned all advantages, the bulb/lamp whether their hesitation should be abandoned being familiar with fully and the traditional optical element of collocation thereof with socket.As a result, there have been some kinds of illumination subsystems recent years,, in fact adopted LED as light source though these illumination subsystems have the mechanical sense of old-fashioned incandescent lamp bulb and light fixture.
Fig. 1 has represented to have the typical motor vehicle 1 of typical external modulation, these lamps comprise anterior side marker light 2, head lamp 3, fog lamp 4, side steering indicating light installed 6, be installed in center high-mount stop lamp 7, license plate lamp 8 and so-called " rear combination lamp " 9 (RCL).Perhaps all these lamps can comprise auxiliary equipment arbitrarily, such as head lamp cleaning systems 5.For the present invention, we at first are absorbed in rear combination lamp 9.
It should be noted that each rear combination lamp 9 can comprise taillight (common known signal lamp just), brake lamp (just known Brake lamp), turn signal lamp and back-up lamp.Each lighting apparatus in the rear combination lamp can have the light source of self, reflection and/or focusing and/or collimation and/or the diffuse optical element of self, the mechanical hull of self, the circuit or the like of self.Aspect this, the aspect of a concrete lighting apparatus and characteristic can be used for any and all lighting apparatus of rear combination lamp 9.Alternatively, in these lighting apparatus, can have one or more functions, for example control circuit, keep mechanical hull more than a light source or the like more than a light source.For example, although taillight and brake lamp function can be combined in the single lamp (bulb) with two filaments, each illumination subsystems typically has its oneself individual light.
In recent years, because LED has begun to appear in the illuminator of outside vehicle, a kind of trend closely was incorporated into LED in the light fixture exactly and went.For example, the brake lamp 7 or the present major part of CHSML (high-mount stop lamp) that are installed in the center high level are all made after this manner, and reason is that the repacking led module is relatively easy with application.Because the life-span of LED is long, be a kind of advantageous method so pass this in time.
In other words, in the long term, comprise housing, speculum, lens cover and arbitrarily in the middle of the light fixture of optical element most probable become be suitable for configuration around the LED optimal design.Electrical connection, fin, collimation and/or reflection and/or diffuse optical element have such design with most probable, and at first this design is suitable for LED rather than at first is suitable for conventional incandescent lamp bulb or lamp, are modified to afterwards to comprise led light source again.
Yet with regard at the moment, a lot of vehicle manufacturers preferably are familiar with and technique known, are included as the incandescent lamp bulb development and have used known speculum and bulb geometry for many years.As a result, many lighting apparatus are made the commercial city and have been developed the rear combination lamp system of LED as its light source that use, and still but use the conventional light kit socket aperture and the optical element of traditional type.Because close with old-fashioned incandescent lamp bulb system, lamp easily from the rear portion (promptly with respect to observer a side) dress get.With regard at the moment, these illuminators receive the favor of vehicle manufacturers easily, and this is because the mechanical features of illuminator is consistent with the old-fashioned system that has set up that uses incandescent lamp bulb.An example of this illuminator is exactly the JOULE product, and this product can be purchased from the Osram Sylvania company that is positioned at Massachusetts, United States Dan Fusi.
Had the multiple design that is used for these illuminators, these designs are used led light sources but the mechanical sense with old-fashioned incandescent lamp bulb system.These designs all have the low shortcoming of optical efficiency that is perhaps caused by loss such as the assembling difficulty.
An example in these known design people such as Coushaine invention, transfer general headquarters in the Osram of Massachusetts, United States Dan Fusi Sylvania company, disclosed in the United States Patent (USP) 6,991,355 of bulletin on January 31st, 2006.In this design, several LED22 invest a side of printed circuit board (PCB) 20, and fin 25 invests the opposite side of printed circuit board (PCB) 20.The outside that LED 22, circuit board 20 and fin 25 all are positioned at concave mirror 50 is adjacent on the position of base portion (summit) of speculum.Be directed into the inside of speculum 50 from the light of each LED 22 via corresponding light guide 30, this light guide extends through the hole at the place, summit that is positioned at speculum 50 from LED.The exit facet of each light guide 30 all is positioned at the along of speculum 50, so that the light that penetrates from LED 22 gets into light guide 30, and penetrates from light guide 30 in the along of speculum 50, via speculum 50 reflections, penetrates car light as collimated light beam.A kind of design the during these design used crooked light guide 30a, so that the exit facet of light guide is suitably located, the light that penetrates from light guide also is mapped to speculum 50 in position with suitable direction transmission.The direct light guider 30 with intermediate mirrors 26 has been used in another kind design in these designs, suitably is directed on the speculum 50 with the output with light guide.
At United States Patent (USP) 6,991, in 355 the design, light guide 30 has the loss of the energy.Typical light guide mainly is the cylindrical bar of glass or plastics, and its all surface all is level and smooth, or level and smooth as much as possible for molded assembly.Can partly carry out extra polishing, but this polishing meeting increases the unnecessary expense of light guide, and then increase the expense of entire lighting unit.
Vertical surface of light guide all can produce loss for injecting and exit facet.For example, if the no coating in surface, different owing to the refractive index between bar and the air, each surface just has about 4% reflection loss.This reflection loss can be through providing ARC to reduce to vertical surface, but this will increase the unnecessary expense of light guide, and then increase the expense of entire lighting unit.In addition, there is the excess loss that causes by scattering in vertical surface.This scattering can reduce through guaranteeing the sliding mode of vertical surperficial relative light, but in practice, this scattering loss is difficult to eliminate.
The lateral surfaces of light guide typically need not coating, so that all experience total internal reflection from the outer surface reflex time along the light of the internal communication of light guide at every turn.Transversely there is the scattering loss that is caused by surface roughness, pollutant or other faults in the surface.With the same, eliminate from the scattering loss of lateral surfaces is very difficult equally from the scattering loss on vertical surface.
In view of the above, provide a kind of use LED as light source, insert from the car light rear portion and the optical loss of elimination light guide and the rear combination lamp of cost, this is very beneficial.
Based on the present invention relates to the motor vehicle illuminator, it is very helpful at first looking back some prior aries.
The parts just known " light kit (lightset) " of forming illuminator at the turning of vehicle.In building, " light kit " is equivalent to light fixture.Light kit typically comprises plastic construction or housing, one or more speculum, lens optical system in some cases, lens cover, and wherein lens cover generally cooperates the outside style of vehicle, and usually has color region, and is for example amber and red.The adjusting device that the housing of light kit comprises socket aperture, ventilation unit and is used for the place ahead illumination in some cases, socket aperture are usually located at the rear portion and have the lamp socket of (being called " bulb " usually in the U.S.) with reception and maintenance.
Usually; Have four key elements for LED-based light emitting module: led chip or template that (1) is actual; (2) dissipation is by the fin or the thermal management device of the heat of led chip generation; (3) drive circuit of power supply is provided to led chip, and (4) receive the light that penetrated by led chip and guide it optical element of observer into.These four elements need not design for meeting each concrete module again; On the contrary, concrete light emitting module can use one or more known elements.Following paragraph will be described several kinds can be with the known elements of using based on the LED light emitting module disclosed herein.
Authorize people such as Madhani; Transfer Massachusetts, United States Dan Fusi OsramSylvania company, name is called the United States Patent (USP) 7 of " DRIVER CIRCUIT FOR LED VEHICLELAMP "; 042; 165 disclose a kind of known drive device circuit that is used for LED-based light emitting module, and its full content is merged in this paper through reference.In this patent, a kind of first car light drive circuit that is used for light emitting diode (LED) array is disclosed, led array has first string and four second strings that LED is cascaded that four LED are cascaded.The one LED drives LED string, and the 2nd LED drives the 2nd LED string.In the STOP operator scheme, the electric current of two LED string is controlled by the LED driving that is cascaded with LED.In the TAIL operator scheme, electric current supplies to a LED string via diode in series and resistor.When having the input voltage that reduces, LED ganged up the on-off circuit of a LED short circuit in each LED string is operated.The second car light drive circuit comprises the LED string and the 2nd LED string of connecting with gauge tap, and this gauge tap has the feedback circuit that keeps constant flow regulation, with the size of current of controlling each LED string with and reduce switch noise.Can be directly or after simple modification, be applied to the led chip of light emitting module disclosed herein by the disclosed drive circuit of this patent.
Authorize people such as Coushaine, transfer the OsramSylvania company of Massachusetts, United States Dan Fusi, the United States Patent (USP) 7 that name is called " LED BULB "; 110; 656 disclose a kind of complimentary socket of LED-based light emitting module and frame for movement of electric connector of being used for, and its full content is merged in this paper as a reference.In this patent, led light source comprises the housing with base portion.Hollow core is arranged from proximal process and around the longitudinal axis.Printed circuit board (PCB) is set in place on the base portion at an end place of hollow core, and the heart operationally is equipped with a plurality of LED therein.In the preferred embodiment of this invention, hollow core is that tubulose and printed circuit board (PCB) are circle.In a preferred embodiment, the light guide with main body is the cup-shaped shown in Fig. 2 and Fig. 4 a, and has given wall thickness " T ".Light guide is positioned at hollow core, and has first end and the second end, and first end operationally is associated with a plurality of LED, and the second end is towards the hollow core outer process.Wall thickness " T " is big at least to the emitting area that can surround the LED that works therewith.Patent 7,110,656 disclosed complete sockets and electric connector frame for movement can directly or be applied to light emitting module disclosed herein after simple modification.
Authorize people such as Coushaine, transfer the OsramSylvania company of Massachusetts, United States Dan Fusi, the United States Patent (USP) 7 that name is called " LIGHT EMITTING DIODE BULBCONNECTOR INCLUDING TENSION RECEIVER "; 075; 224 disclose the another kind of complimentary socket that is used for LED-based light emitting module and the frame for movement of electric connector, and its full content is merged in this paper as a reference.In this patent, led light source (10) comprises the have base portion housing (12) of (14), and hollow core (16) is from proximal process.Hollow core (16) is conical basically.Center heat carrier (17) is positioned at the center of hollow core (16) and is processed by solid copper.First printed circuit board (PCB) (18) is connected in an end of center heat carrier, and second printed circuit board (PCB) (20) is assembled to the second opposed end of center heat carrier (17).Second printed circuit board (PCB) (20) has at least one exercisable LED mounted thereto (24).A plurality of electric conductors (26) have with the contacted near-end of electrical trace (28) that go up to form at second printed circuit board (PCB) (20) and with go up the contacted far-end of electrical trace (30) that forms at first printed circuit board (PCB) (18).Each electric conductor (26) all has the tension decompressor (27) that is formed on wherein, the axially compression between erecting stage of this tension decompressor.Cap (32) be assemblied in second printed circuit board (PCB) (20) above; Fin (34) invests base portion and keeps thermo-contact with first printed circuit board (PCB).With United States Patent (USP) 7,110,656 is the same, and by United States Patent (USP) 7,110, the frame for movement of 656 disclosed complimentary socket and electric connector can directly or be applied to light emitting module disclosed herein after simple modification.
Authorize people such as Coushaine, transfer the OsramSylvania company of Massachusetts, United States Dan Fusi, the United States Patent (USP) 6 that name is called " REPLACEABLE LED BULB WITHINTERCHANGEABLE LENS OPTIC "; 637; 921 disclose a kind of reflective optical device; This optical element receives the light perpendicular to the circuit board ejaculation from LED, and this light is reflected towards a plurality of directions that all are basically parallel to circuit board.United States Patent (USP) 6,637,921 disclosed optical elements can have the shape of back taper, and the tip of this taper is towards led chip.Tapered portion can be continuous, also is substitutable for discontinuous facet, and this facet is similar to conical by its shape.Reflective optical devices can use with single led chip or a plurality of led chip arranged around cone point.United States Patent (USP) 6,637,921 disclosed reflective optical devices can use by disclosed LED-based light emitting module in the application, can be arranged on led chip and with in the light path of photoconduction between observer's speculum.
Summary of the invention
An embodiment is a kind of motor vehicle rear assembled lamp (10), comprising: have the concave mirror (85,13) of focus, have the hole, be used to receive the divergent beams of horizontal transmission at its place, summit, and the collimated light beam of reflection longitudinal propagation; Be arranged on abduction (or claiming flared) speculum (75) of the along of concave mirror (85), be used to receive the guide beam of longitudinal propagation, and the divergent beams of horizontal transmission are reflected to concave mirror (85); With photoconduction to the zone, be used for receiving divergent beams, and produce the guide beam of longitudinal propagation from the longitudinal propagation of at least one light emitting diode (35).Photoconduction is formed between convex surface reflecting surface (65) and the concave reflection surface (45) to the zone, and convex surface and concave reflection surface (65,45) have nested, continuous and concentric cross section.Photoconduction extends through the hole at the place, summit that is positioned at concave mirror (85) to the zone.At least one light emitting diode (35) is arranged on the outside of concave mirror (85).
Another embodiment is a kind of motor vehicle rear assembled lamp (10), comprising: have the inner cylinder (or claiming cylindrical shell) (61) of near-end and the far-end relative with near-end, inner cylinder (61) comprises convex surface cylinder reflecting surface (65); Be centered around inner cylinder (61) outside cylinder (43) on every side; Outside cylinder (43) comprises towards convex surface cylinder reflecting surface (65) and coaxial concave cylinder reflecting surface (45) with it; Convex surface and concave surface cylinder reflecting surface (65,45) laterally define the light transmitting region territory; Be arranged on the printed circuit board (PCB) (31) of inner cylinder (61) near-end; Be arranged on a plurality of light emitting diodes (35) on the printed circuit board (PCB) (31), this diode (35) can provide electric energy by printed circuit board (PCB) (31), and diode (35) can produce in the light transmitting region territory towards the light away from the direction longitudinal propagation of printed circuit board (PCB) (31); With the abduction speculum (75) of the far-end that is arranged on inner cylinder (61), this abduction speculum is adjacent to the light transmitting region territory, is used for laterally being reflected in the light of light transmitting region territory longitudinal propagation, and this spread reflection mirror has the cross-sectional diameter of increase from near-end to far-end.
Another embodiment is a kind of motor vehicle rear assembled lamp (10), comprising: printed circuit board (PCB) (31); Inner cylinder (61) away from printed circuit board (PCB) (31) extends comprises convex surface cylinder reflecting surface (65); Be centered around inner cylinder (61) outside cylinder (43) on every side; Outside cylinder (43) comprises towards convex surface cylinder reflecting surface (65) and coaxial concave cylinder reflecting surface (45) with it; Convex surface and concave surface cylinder reflecting surface (65,45) laterally define the light transmitting region territory; Be arranged on a plurality of light emitting diodes (35) on the printed circuit board (PCB) (31), this diode (35) can provide electric energy by printed circuit board (PCB) (31), and diode (35) can produce in the light transmitting region territory towards the light away from the direction longitudinal propagation of printed circuit board (PCB) (31); With the horn-like speculum (75) of the vertical end that is arranged on inner cylinder (61), this speculum and printed circuit board (PCB) (31) are relative and be adjacent to the light transmitting region territory, are used for laterally being reflected in the light of light transmitting region territory longitudinal propagation; Concave mirror (85) is used for collimation and vertically reflection is by the light of the horizontal reflection of horn-like speculum (75), and concave mirror (85) has focus and has the hole at its place, summit; And transparency cover (15), be used for the collimated light beam of transmission from concave mirror (85).Inside and outside cylinder (61,43) extends through the hole at the top that is positioned at concave mirror (85).Horn-like speculum (75) is arranged on the along of concave mirror (85).Printed circuit board (PCB) (31) is arranged on the outside of concave mirror (85).
Description of drawings
Fig. 1 is the sketch map of the exemplary external lighting apparatus of motor vehicle.
Fig. 2 is the schematic cross sectional views of the simplification light path in the rear combination lamp with single LED and non-facetted mirrors mirror.
Fig. 3 is the schematic cross sectional views of the simplification light path in the rear combination lamp with a plurality of LED and non-facetted mirrors mirror.
Fig. 4 is the schematic cross sectional views of the simplification light path in the rear combination lamp with single LED and facetted mirrors mirror.
Fig. 5 is used for the schematic installation diagram that the exemplary mechanical of the led module of rear combination lamp is arranged.
Fig. 6 is the schematic, exploded of the led module of Fig. 5.
Fig. 7 is the schematic cross sectional views of the led module of Fig. 5 and 6.
The specific embodiment
The disclosed light emitting diode of this paper (LED) module can be used for the exterior vehicle illumination.Led module can be installed in the light kit socket from the rear portion with the similar mode of mode that the conventional incandescent bulb uses.Led module can comprise the optical element that is suitable for light is distributed to speculum, and this speculum receives the light from led chip, and with the photoconduction of reflection to the observer.Following detailed will be explained more comprehensively.
For using light emitting diode, there have been many methods to guarantee to export light direction according to the rules and from equipment, penetrated as the typical case of light source, known rear combination lamp.For example, the first generation system that is referred to as JOULE that is purchased has used the light emitting diode of installing with a concrete angle.First generation system assembly technology is quite complicated, and assembly technology comprises the connection of difficulty between LED and the control circuit board.For second generation JOULE system, this installation configuration that is used for light emitting diode is substituted by light guide and small reflector, and its luminous point with LED is imaged on the focus of rear combination lamp speculum.Light guide typically is the tubulose transparent body that glass or plastics are processed, and has smooth side to guarantee all to experience total internal reflection along the light beam of light guide transmission in the reflection of each side.Though light guide is the improvement of first generation system, but still be assembly additional in the system, thereby increased the cost of system, in addition, owing to can lose sub-fraction light at the entering and the output interface of light guide, so light guide is also lossy.Requirement has other LED to overcome the loss that is caused by photoconductive tube and associated optical devices.Also test once has the system of sidepiece emitting light emitting diode, but assembling is complicated or have lower optical efficiency.
Usually, all there is different classes of defective in the rear combination lamps before all, or assembling is complicated, or have lower optical efficiency, also or incompatible with the current configuration of rear combination lamp.
The present invention has overcome these defectives and can realize one or more in the advantage:
Therefore the first, light-emitting diode (LED) module is fully-integrated, has reduced the quantity of assembly and has simplified the assembling of module.In addition, because light emitting diode and electronic component all are arranged on the same circuit board, therefore do not need extra interconnection between the two.
The second, light-emitting diode (LED) module is back compatible (backwards-compatible), has with those current rear combination lamp configurations to be complementary or easy adaptive optics and mechanical features.
The 3rd, reduced the loss of these led modules, thereby increased the brightness of module and/or reduced and moved the required power consumption of this module.Do not need light pipe or any additional optical element.
Below paragraph in we provide simplified summary of the present invention, be the detailed description of light path in the rear combination lamp afterwards, be the detailed description of the mechanical features of rear combination lamp after again.
The invention describes a kind of back year formula led module that is used for rear combination lamp.One or more LED are installed on the printed circuit board, and this circuit board mechanically remains in the LED of polyhedral parabolic mirror outside and to LED electric energy is provided.The light that sends from LED gets into the light transmitting region territory, and this zone is formed between two nested cylindrical reflectivity adjacently situated surfaces.This cylinder extends from the LED of the outside that is positioned at speculum, and vertically passes the hole at the place, summit that is positioned at speculum, up to the focus of speculum.In some applications, the effect of beam homogenizer can be played in the light transmitting region territory, can have roughly intensity uniformly so that pass the light in light transmitting region territory.Light from the light transmitting region territory is mapped on abduction (flared) speculum, and this speculum guides most of light laterally to get into parabolic mirror.Parabolic mirror makes optical alignment and longitudinal guide light pass transparent cover plate and penetrate car light.Parabolic mirror can have the facet (facet) that partial reflection light is turned to angularly, distributes to form the needed two-dimentional angle of outgoing beam.
To after the present invention brief overview, below we will discuss the light path in rear combination lamp, will be the argumentation more in detail that the machinery of optical module is realized afterwards.
Fig. 2 is the cross-sectional schematic of the simplification light path in the rear combination lamp 10.It should be noted that this light path can think " half paraboloid ".In some cases, can collect and reflect all light more than half paraboloid from LED.Under those situation, also can use the complete parabola of complete 360 degree subtends.Fig. 7 has shown a this paraboloidal example fully, and this will continue to discuss below.For the schematic argumentation here, the operation of this half paraboloid just can fully be described, except the light that goes out from full parabolic reflector in an identical manner.
In this simplification light path of Fig. 2, in led module 11A, has only a LED.In practice, LED more than one can be arranged in the module; This situation can be through handling the argumentation of simplifying system among Fig. 2 down exactly.
Speculum 13A can have paraboloidal shape, and this shape is comprising on the section on its summit being parabola.As everyone knows, parabolic mirror will form the collimated light beam that does not have aberration basically from the light source that is positioned at the parabolic focus place.Vertically move light source and it can be produced away from focus defocus, or the skew of generation and collimation, perhaps be equivalent to produce departing from away from the luminous flux of collimation.Laterally moving light source makes it can produce the error in pointing of the collimated light beam of reflection away from focus.In other words, for the light source of transverse shift, reflected beams is still by collimation, but reflected beams possibly compared the skew that produces certain angle with the situation of not displacement.Usually, the radian value of this angular movement equals the focal length of the transverse shift of light source divided by parabolic mirror.If the transverse shift off-focal is enough big, beam reflected also possibly present monochromatic wavefront aberration so, such as coma.
In Fig. 2, can consider that optical axis bends at the speculum place, therefore, for collimated light beam, optical axis 18 can be longitudinally directed by major part towards the front portion of rear combination lamp 10.In some applications, optical axis 17,18 at the speculum place flexible 90 the degree.In other are used, also can crookedly must or be slightly less than 90 degree less times greater than 90 degree.For all these situation, we are called divergent beams 12 and have " largely " horizontal orientation, and collimated light beam 14 be have " largely " directed longitudinally.
In document, collimated light beam 14 can be referred to as " parallel luminous flux " usually.These terms can exchange, in the application's use, also can think the equivalence.
Passing " transparency cover " or transparent " lens cover " after 15, collimated light beam 14 still keeps collimation 16, penetrates rear combination lamp 10 at the rear portion of motor vehicle, and towards the observer.Transparency cover 15 can have optional spectral effects, for example can from the light beam of propagating, filter one or more wavelength or wavelength band, but typically can as diffusion disk, not make beam divergence.
Led module 11A, speculum 13A and transparency cover 15 can all mechanically be kept by a housing 20.The reason that needs such shell 20 is that it is made cheaply, can be molded or impress to include the surface profile of speculum 13.
The mechanical aspects of rear combination lamp 10 can discuss in more detail after describing optical path hereinafter.
The mechanical aspects of rear combination lamp 10 can discuss in more detail after describing optical path hereinafter.Recalling that these require all is the incandescent lamp definition, and new LED-based light fixture can be designed to output " as " output of incandescent lamp type fixture, with requirement before satisfying.。
For example, rear combination lamp possibly require can reach or more many optical output power easily than single led.LED is schematically illustrated among Fig. 3 with reduced form more than this type.
Compare with the rear combination lamp 10 among Fig. 2, unique different assembly is exactly the multiple row led module 11B that comprises three LED.In the sketch map of this simplification, all LED launch light in the scope of typical manufacturing, assembling and/or snapping tolerance with roughly the same direction.In other were used, one or more LED can shine to different directions.
Followed the trail of through rear combination lamp 10 backs from the light of each in three led light sources on many led modules 11B, therefore exist the three beams dotted line to represent light beam.The effect that in this system, has the light source of multiple row, spaced is, in the light beam that departs from optical axis 18 16, can have the little angular displacement of some rays.Therefore these angular displacement are smaller usually, and the several years are for example approximately only arranged, and the light beam 16 of output is still thought collimation.
See that from optical angle desirable situation is to make LED approaching as much as possible together.Yet see that from the calorifics angle desirable situation is to make LED as much as possible away from each other, thereby the heat that is produced by each LED can dissipate effectively.In fact, can make several millimeters at interval even more distance between the LED on the printed circuit board (PCB).The heating aspect of rear combination lamp 10 can be discussed after describing optical path more comprehensively.
The rear combination lamp of simplifying among Fig. 3 10 possibly have enough output optical powers, but the angle that in output beam 16, possibly not have suitable light distributes.In other words, the directionality of output beam 16 is too strong, and therefore, if make observer's sight line outside narrow relatively output beam 16, lamp is will illumination not enough.
Require to be different from the improvement that incandescent lamp bulb is exported with them through the test lamp output angle, the present invention will be understood that clearlyer.The light that old-fashioned speculum light fixture sends comprises two overlapping parts: the light of parabolic mirror reflects is passed through from light and (2) that bulb directly appears transparency cover in (1) from bulb.Partly disperse (1), and part (2) roughly is a collimation.These two parts have dependence of angle away from the combination on the space of motor vehicle, and intensity can be bigger when observer's sight line is within from the collimated light beam of part (2).Yet angular dependence can be decayed because of the weak relatively angular dependence of part (1).According to the rules; The boundary value of conventional angle output is set to change on the vertical direction approximately+/-10 degree, changes to approximately+/-20 degree in a lateral direction, therefore; If observer's sight line be positioned at arm of angle circle " within "; Then light is fully visible, if observer's sight line is positioned at outside arm of angle circle, then light is not necessarily visible.
Therefore; Because maybe be too narrow and can not satisfy approximately+/-10 degree of vertical direction from the output beam of the rear combination lamp of simplifying among Fig. 3 10 16; Horizontal direction is the angle requirement of degree approximately+/-20; Reason be angular range possibly be at the most+/-several years, reason be angular range possibly be at the most+/-several years.Be expanded light beam on angle, and the well known elements that does not significantly change its collimation is shown " multiaspect " speculum shown in Fig. 4 at this.
Compare with the sketch map of Fig. 2 of the rear combination lamp of simplifying 10, unique difference of Fig. 4 is, simple parabolic mirror 13A is replaced with polyhedron parabolic mirror 13B.Usually, the facetted mirrors mirror is known in industry, and perhaps more the age of morning just disclosed in patent documentation as far back as 1972.Three kinds of so known facetted mirrors mirrors will briefly be described hereinafter, will be appreciated that except three examples of following summary, and the facetted mirrors mirror design that is fit to arbitrarily can be used.In the sketch map of Fig. 4, each facet 19A, 19B, 19C, 19D guides light in the identical predetermined angular range into 19E basically, so that the output of all light all has the angular range identical with each facet usually.In alternate embodiments, each facet can be with photoconduction in its independent predetermined angular range separately, so that the output of whole lamps comprises institute's multiaspect angle contribution.。
Facetted mirrors mirror design relatively early is called the United States Patent (USP) 3 of " FACETED REFLECTOR FOR LIGHTINGUNIT " in people's such as Donohue the name of 24 bulletins October in 1972; 700; Open in 883, its full content is merged in this paper through reference.Donohue discloses the method for making this speculum, comprises quantity, size, curvature and location that each facet is set, and to produce the distortionless reflected image of light source, the accumulation effect of these faces has produced needed illumination profile in the scope of formulating.Because in 1972, desirable parabolic damaged surface was difficult to make, so comprised among the Donohue that approximate cylinder cylinder substitutes on the permission use mathematics.
Another kind of facetted mirrors mirror design on November 3rd, 1987 bulletin the name of Kosmatka be called in the United States Patent (USP) 4,704,661 of " FACETED REFLECTOR FOR HEADLAMPS " disclosedly, its full content is merged in this paper as a reference.Compare with the patent surperficial than the use straight cylinder of Donohue early, the patent of Kosmatka is used straight parabolic periphery and the simple parabolic surface of rotating.
The third known facetted mirrors mirror design is called in the United States Patent (USP) 5,406,464 of " REFLECTOR FOR VEHICULAR HEADLAMP " disclosedly in the name of Saito of bulletin on April 11 nineteen ninety-five, and its full content is merged in this paper as a reference.Saito discloses a kind of speculum, and it has several echo areas, and wherein each echo area comprises several segments.Each section has basic curved surface (hyperbolic-parabolic, paraboloid or the paraboloid of revolution) and is arranged in the part and has on the paraboloid of revolution surface of revolution of different focal
As using in the rear combination lamp of Fig. 4; Facetted mirrors mirror 13B receives the divergent beams 12 from led module 11A; Make beam collimation and segment beam turned to angularly (divert); Collimation and the light beam that turns to angularly are directed to transparency cover 15, and light passes transparency cover and penetrates car light 10.
Optical schematic diagram among Fig. 2-4 has been represented led module 11A and 11B, and these modules all mechanically maintain one or more LED in the along of facetted mirrors mirror 13B.Because a variety of causes, hope is arranged on the outside of speculum with LED and will be input on the focus of speculum via the hole on the speculum from the light of LED.In some known design, this input can be carried out through light guide.
Described as top United States Patent (USP) 6,991,355, light guide possibly be the loss source.For example, typical LED has " lambert " type emission mode of the field angle of about 120 degree.Yet the typical incidence angle of the light guide of plastics or type of glass all is significantly smaller than 120 degree.Light to inject greater than the angle of the incidence angle of light pipe has all lost.In addition, on the vertical and horizontal surface, also there is the excess loss that causes by scattering.Under many circumstances, will be transferred to via the wall on the parabolic mirror from the light of LED on the focus of speculum, when need guaranteeing this function, remove light guide itself.
In this application; From the focus that only is transferred to speculum through the free space that is referred to as " photoconduction is to the zone " or " light transmitting region territory " of LED, this free space is propagated the space that forms between two nested cylinders or other suitable shapes.Apply male and fomale(M&F) respect to one another on the cylinder to such an extent that have a higher reflectivity.At one end get into photoconduction to the light of one of the zone vertical end at concavo-convex reflecting surface through repeatedly reflection, penetrate to the vertical end place of the another one in zone from photoconduction again.
Photoconduction has high relatively sensitivity to the light path in zone for the initial position of concrete light and angle.In other words, the minor variations of the concrete light generation of incident can both cause the position of corresponding emergent ray and the bigger variation of angle.For example, the light of together a large amount of longitudinal propagations compares, and photoconduction maybe be more for the light with big cross stream component to the order of reflection of intra-zone.
Because above-mentioned effect, photoconduction can be described as the effect with homogeneity to the zone, causes its output to seem the intensity with basically identical.In some applications, it can be called as a kind of beam homogenizer.Photoconduction can have essentially identical intensity to the exit facet (being positioned at far away vertical the end to encircling of photoconduction to the zone) in zone, this means that wherever the intensity on the exit facet is detected, intensity is always roughly the same.The light that penetrates from exit facet exhales from the exit facet of itself again, thereby under great majority are used, need the exit facet of this beam homogenizer be positioned at the along of concave mirror.
In this application, photoconduction is roughly consistent with the abduction speculum to the exit facet in zone, makes both can think the along at concave mirror.
Before the machinery assembling of discussing car light, we summarize the light path of car light 10 among Fig. 4.Led module inserts through the rear portion of polyhedron parabolic mirror 13B.Led module has one or more LED that inject photoconduction to the zone, and this photoconduction forms the space between two nested cylinders or other suitable shapes to the zone.Because light is along the cylinder longitudinal propagation, light beam becomes and disperses.Have basic intensity uniformly and reflected to the output of the far-end in zone from photoconduction, so that light is propagated away from LED towards parabolic mirror by the abduction speculum.Divergent beams 12 from led module 11B are mapped to polyhedron parabolic mirror 13B, thereby optical axis 17 has the incident angle of about 45 degree, and the optical axis 18 of reflection penetrates speculum with the shooting angle of about 45 degree.The optical axis 17 of incident is most of level and horizontal, reflection optical axis 18 be major part longitudinally.Parabolic mirror 13B collimated light beam also reflects this collimated light beam, and the concrete angle that facet has produced for the collimated light beam 14 of reflection distributes.The collimated light beam 14 of reflection passes transparency cover 15 and becomes the outgoing beam of propagating towards the observer 16.
Sketched light path, we discuss the mechanical encapsulation of rear combination lamp 10 now, and this rear combination lamp remains on optical module on the position, transmit electric energy to LED, and the heat that dissipates and produced by LED.
Fig. 5 to 7 is respectively assembling, decomposition and the cross-sectional schematic of the schematic mechanical arrangement of the led module 11C that is used for rear combination lamp.Led module 11C longitudinally inserts from the car light rear portion, and method is identical with conventional incandescent lamp bulb.Housing with parabolic mirror 85 does not show in Fig. 5 and 6.
Led module 11C makes up in layer, and wherein, nearly layer is near parabolic mirror 85, and printed circuit board (PCB) 31 is as the intermediate layer, and leafing parabolic mirror 85 far away farthest.Each layer all has concrete function, and all serves mechanical stability, durability and electricity and the calorifics characteristic of led module 11C.We at first discuss printed circuit board (PCB) 31, and outwards expansion.
Though show three LED in the drawings, should be understood that, also can use LED greater or less than three.For example, one, two, four, five, six, eight, perhaps all can use more than eight LED.
The shape of printed circuit board (PCB) 31 or " contour shape " (footprint) can be selected arbitrarily.In the exemplary design of Fig. 5-7, contour shape is a rectangle.In some applications, the printed circuit board (PCB) of annular can be convenient to be installed in other assemblies with cylindrical geometry shape basically.Alternately, printed circuit board (PCB) can be square or rectangle on profile; The contour shape of rectangle can help any circuit board material that in manufacture process, cuts the waste.Usually, printed circuit board (PCB) 31 can use the shape of any appropriate.
The electrical connection of introducing/draw printed circuit board (PCB) 31 forms through one or more electric connector 32.Connector is convenient to the connector of quick joint or separate circuit boards such as those.Connector is known connector; Like what in following two documents, discuss: authorize people's such as Coushaine; The name that transfers the Osram Sylvania company of Massachusetts, United States Dan Fusi is called the United States Patent (USP) 7 of " LED BULB "; 110,656 disclose a kind of complimentary socket and electric connector frame for movement that is used for LED-based lighting module, and its full content is merged in this paper through reference.Authorize the United States Patent (USP) 7 that the OsramSylvania company people, that transfer Massachusetts, United States Dan Fusi such as Coushaine, name are called " LIGHT EMITTING DIODE BULBCONNECTOR INCLUDING TENSION RECEIVER "; 075; 224 disclose the another kind of complimentary socket that is used for LED-based lighting module and the frame for movement of electric connector, and its full content is merged in this paper as a reference.Alternately, can use any suitable connector.
In some applications, connector 22 invests printed circuit board (PCB) self.In other are used, connector 22 can invest layer 21 far away or with layer 21 global formation far away, some electric pins extend to or pass layer 21 far away from printed circuit board (PCB) 31.
The farthest that layer 21 far away is positioned at apart from parabolic mirror 85.
In some applications, use interference fit or frictional fit to make inner cylinder 61 invest cylinder fixture 24.In other were used, inner cylinder 61 was screwed in together with cylinder fixture 24 each other.In other were used, adhesive also can be used for inner cylinder 61 is invested cylinder fixture 24.
Near the connector and/or near the layer circumference far away, layer 21 far away also can have one or more sealings 23.In some applications, layer 21 far away is sealed in nearly layer 41, and printed circuit board (PCB) 31 is stored between the layer and is protected from the influence of element.The outside of far away layer 21 self can be plastics, metal or other suitable materials arbitrarily.
The contour shape of layer 21 far away can be a rectangle, with fit printed circuit board 31, also can be any other suitable shape and sizes.In some applications, layer 21 far away has lip near its circumference, so that printed circuit board (PCB) 31 is positioned at or places the layer 21 far away of shallow discoid shape.
Nearly layer 41 is nearest from parabolic mirror 85.Nearly layer also can have rectangular profile shape, with the contour shape of fit printed circuit board 31 with layer 21 far away.In some applications, nearly layer 41 can be avoided the influence of element around layer 21 circumferential sealing far away to layer 21 far away with protection printed circuit board (PCB) 31.
Nearly layer 41 has towards the parabolic mirror 85 contiguous outside cylinders 43 that extend.At the assembly process of lamp, outside cylinder 43 vertically inserts in the hole of parabolic mirror 85.Outside cylinder 43 can comprise one or more location feature spare 44A, 44B such as the right-angled bend feature, and these features are widely used for automotive lamp and can module be fixed on the parabolic mirror.
Nearly layer 41 also can have location ledge 42, and this ledge can be the annulus around the outside cylinder 43, face as a reference when assembling.For example; Can sealing 51 be arranged on above the outside cylinder 43; Can led module 11C vertically be inserted the rear portion of parabolic mirror 85 afterwards, until between location ledge 42 and the sealing 51 and sealing 51 and speculum 85 or have to form between the corresponding plane of reference on the housing of speculum 85 and firmly contact.
In some applications, outside cylinder 43 was opened manufacturing in 41 minutes with nearly layer, was attached to together afterwards.In other were used, outside cylinder 43 was one-body molded with near layer 41.
When assembled layers 21,31 and 41, vertically luminous in LED 35A, 35B, the 35C space between the inner surface 45 of the outer surface 65 of inner cylinder 61 and outside cylinder 43.These surfaces all are level and smooth and/or gloss, with the elimination rough surface, and then the amount of minimizing scattered light.Both also can scribble high reflective coating, chromium for example, and certainly, any suitable high reflecting coating can use.Light penetrates after LED 35A, 35B, the 35C, and repeatedly reflection of experience in the space between reflecting surface is penetrated in the along of parabolic mirror from the cylinder of enclosure interior.Perhaps other are tightened and/or positioner can to have screw thread on the Non-optical surfaces of one or two in cylinder.
Near-end (end relative with layer structure) in inner cylinder 61 has abduction speculum 71.This speculum 71 has reflecting surface 75, and this reflecting surface will guide towards the cylinder outer radial from the LED light that cylinder penetrates in a longitudinal direction, so that from the most of laterally reflection of the reverberation of abduction speculum.Laterally reverberation is mapped to parabolic mirror, and parabolic mirror makes optical alignment and longitudinal guide.Vertical light of collimation passes transparency cover, penetrates from car light.
The shape of the reflecting surface 75 of abduction speculum 71 can be conical, horn-like, fall umbrella shape, or other suitable curved surfaces arbitrarily.In some applications, abduction speculum 71 can be symmetrical on the azimuth.In other were used, abduction speculum 71 can comprise section, and each section has shape and the location of oneself.For example, abduction speculum 71 can comprise some flat sections, and this is similar with flat thin slice being positioned over the effect that the curved surface top obtained.
In some applications, the radial span of abduction speculum 71 is all bigger than cylinder inside and outside, and therefore, all light that penetrate cylinders all are mapped on the speculum 71, and by transverse guidance to parabolic mirror.In these are used, all accomplishes assembling also or alternatively after the sealing when layer 21,31 and 41, enclose inner cylinder 61 at last again, this is the inside that can not be assembled to outside cylinder 43 because of big like this speculum 71.In other was used, therefore the radial span of abduction speculum 71, just can invest inner cylinder on the layer far away before nearly layer adheres to greater than inner cylinder but less than outside cylinder.
Think " cylinder " though it should be noted that outside and the inner cylinder mentioned here, in fact, they can be different from actual cylinder.For example one or two in the cylinder can be taper, and profile diameter constantly changes to far-end Zi the near-end of " cylinder ".This taperer can use to increase or to reduce the size of abduction speculum 71, also can change the ejaculation form that is mapped to parabolic mirror as required.In other was used, inside and outside cylinder can have oval cross section, perhaps comprises one or more straightways.Usually the shape of any appropriate all can be used for forming the relative reflecting surface in so-called " photoconduction is to the zone ", and this surface will be transferred to the along of parabolic mirror from the light of LED.
In some applications, inside and outside cylinder is coaxial, that is to say that they have common axle 87.In other was used, inside and outside cylinder was asymmetric each other.
Just as explanation, and is not to be used to limit scope of the present invention to the description of the application that relates in the present invention and the literary composition thereof.To those skilled in the art, after understanding patent document, the change of the embodiment described in the present invention and the equivalent substitution of some elements of variation and embodiment and the selection in the practical application are all expected easily.Need not to break away from the spirit and scope of the present invention, these of the embodiment that the present invention put down in writing can be accomplished with other changes and variation.
Claims (18)
1. a motor vehicle rear assembled lamp (10) comprising:
Concave mirror (85,13) with focus, the place has the hole on the summit, is used to receive the divergent beams of horizontal transmission, and the collimated light beam of reflection longitudinal propagation;
Be arranged on the abduction speculum (75) of the along of said concave mirror (85), be used to receive the guide beam of longitudinal propagation, and the divergent beams of horizontal transmission are reflected to said concave mirror (85); With
Photoconduction is used for receiving the divergent beams from the longitudinal propagation of at least one light emitting diode (35) to the zone, and produces the guide beam of longitudinal propagation;
Wherein, said photoconduction is formed between convex surface reflecting surface (65) and the concave reflection surface (45) to the zone, and said convex surface and concave reflection surface (65,45) have nested, continuous and concentric cross section;
Wherein, said photoconduction extends through the hole at the place, summit that is positioned at said concave mirror (85) to the zone; And
Wherein, said at least one light emitting diode (35) is arranged on the outside of said concave mirror (85).
2. motor vehicle rear assembled lamp as claimed in claim 1 (10) is characterized in that, the cross section on said convex surface and concave reflection surface (65,45) is oval-shaped.
3. motor vehicle rear assembled lamp as claimed in claim 1 (10) is characterized in that, the cross section on said convex surface and concave reflection surface (65,45) is circular.
4. motor vehicle rear assembled lamp as claimed in claim 1 (10) is characterized in that, said convex surface and concave reflection surface (65,45) are arranged on the adjacently situated surfaces of two nested cylinders (61,43).
5. motor vehicle rear assembled lamp as claimed in claim 1 (10) is characterized in that, said convex surface and concave reflection surface (65,45) are arranged on the adjacently situated surfaces of two nested cones (61,43).
6. motor vehicle rear assembled lamp as claimed in claim 1 (10),
Wherein, said convex surface and concave reflection surface (65,45) is separately positioned on the inner surface of outer surface and external member (43) of internals (61);
Wherein, internals (43) has the far-end that is in the outside near-end of said concave mirror (85) and is in said concave mirror (85) inside;
Wherein, said abduction speculum (75) is adjacent to the far-end of said internals (61) in the vertical.
7. motor vehicle rear assembled lamp as claimed in claim 6 (10) is characterized in that, the radial diameter of abduction speculum (75) is greater than the radial diameter of internals (61) and both far-ends of external member (43).
8. motor vehicle rear assembled lamp as claimed in claim 1 (10) also comprises:
Laterally directed printed circuit board (PCB) (31) is used to install at least one light emitting diode (35), and supplies power to said light emitting diode (35);
Wherein, said printed circuit board (PCB) (31) is arranged on the outside of (35) concave mirror (85).
9. motor vehicle rear assembled lamp as claimed in claim 1 (10) is characterized in that, said concave mirror (85) has paraboloidal shape.
10. motor vehicle rear assembled lamp as claimed in claim 1 (10),
Wherein, said concave mirror (13) comprises a plurality of facets (19), is used for the collimated light beam of the longitudinal propagation of reflecting is turned to angularly; With
Wherein, the total angle of all facets (19) turns to and jointly forms an angle predetermined, two dimension with respect to the collimated light beam exit direction of the longitudinal propagation of reflection and distribute.
11. a motor vehicle rear assembled lamp (10) comprising:
Have the inner cylinder (61) of near-end and the far-end relative with near-end, said inner cylinder (61) comprises convex surface cylinder reflecting surface (65);
Be centered around said inner cylinder (61) outside cylinder (43) on every side; Outside cylinder (43) comprises towards convex surface cylinder reflecting surface (65) and coaxial concave cylinder reflecting surface (45) with it; Said convex surface and concave surface cylinder reflecting surface (65,45) laterally define the light transmitting region territory;
Be arranged on the printed circuit board (PCB) (31) of said inner cylinder (61) near-end;
Be arranged on a plurality of light emitting diodes (35) on the said printed circuit board (PCB) (31); Said diode (35) can provide electric energy by said printed circuit board (PCB) (31), and said diode (35) can produce in the light transmitting region territory towards the light away from the direction longitudinal propagation of said printed circuit board (PCB) (31);
Be arranged on the abduction speculum (75) of the far-end of said inner cylinder (61); Said abduction speculum is adjacent to the light transmitting region territory; Be used for laterally being reflected in the light of light transmitting region territory longitudinal propagation, said abduction speculum has the cross-sectional diameter of increase from near-end to far-end; And
Concave mirror (85) with focus has the hole at its place, summit;
Wherein, the inside of said concave mirror (85) can be inserted in said inside and outside cylinder (61, the 43) hole of passing said concave mirror (85);
Wherein, When said inside and outside cylinder (61; When 43) inserting said concave mirror (85) fully; Abduction speculum (75) is arranged on the along of said concave mirror (85) so that from the light in light transmitting region territory after said abduction speculum (75) reflection, collimate via said concave mirror (85) again.
12. motor vehicle rear assembled lamp as claimed in claim 11 (10) is characterized in that, said inner cylinder (61) extends through the hole (33) of said printed circuit board (PCB) (31).
13. motor vehicle rear assembled lamp as claimed in claim 11 (10) is characterized in that, the radial diameter of said abduction speculum (75) is greater than said convex surface cylinder reflecting surface (65) and both diameters of said concave surface cylinder reflecting surface (45).
14. motor vehicle rear assembled lamp as claimed in claim 13 (10) is characterized in that, the radial diameter of said abduction speculum (75) is greater than the diameter of said convex surface cylinder reflecting surface (65) and both far-ends of said concave surface cylinder reflecting surface (45).
15. a motor vehicle rear assembled lamp (10) comprising:
Printed circuit board (PCB) (31);
Inner cylinder (61) away from said printed circuit board (PCB) (31) extends comprises convex surface cylinder reflecting surface (65);
Be centered around said inner cylinder (61) outside cylinder (43) on every side; Said outside cylinder (43) comprises towards said convex surface cylinder reflecting surface (65) and coaxial concave cylinder reflecting surface (45) with it; Said convex surface and concave surface cylinder reflecting surface (65,45) laterally define the light transmitting region territory;
Be arranged on a plurality of light emitting diodes (35) on the said printed circuit board (PCB) (31); Said diode (35) can provide electric energy by said printed circuit board (PCB) (31), and said diode (35) can produce in the light transmitting region territory towards the light away from the direction longitudinal propagation of said printed circuit board (PCB) (31); With
Be arranged on the horn-like speculum (75) of the vertical end of said inner cylinder (61), said abduction speculum and said printed circuit board (PCB) (31) are relative and be adjacent to the light transmitting region territory, are used for laterally being reflected in the light of light transmitting region territory longitudinal propagation;
Concave mirror (85) is used for collimation and vertically reflection is by the light of the horizontal reflection of said horn-like speculum (75), and said concave mirror (85) has focus and has the hole at its place, summit; With
Transparency cover (15) is used for the collimated light beam of transmission from said concave mirror (85);
Wherein, said inside and outside cylinder (61,43) extends through the hole at the top that is positioned at said concave mirror (85);
Wherein, said horn-like speculum (75) is arranged on the along of said concave mirror (85); With
Wherein, said printed circuit board (PCB) (31) is arranged on the outside of said concave mirror (85).
16. motor vehicle rear assembled lamp as claimed in claim 15 (10),
Wherein, Said printed circuit board (PCB) (31) is clipped between the nearly layer and layer far away (41,21) in layer structure, and said printed circuit board (PCB) comprises electric connector (32) and hole (33); Said electric connector extends towards the nearside away from said printed circuit board (PCB) (31), and said inner cylinder (61) is passed the hole;
Wherein, the said near layer (41) in the layer structure invests said outside cylinder (43), and said nearly layer (41) is arranged between said printed circuit board (PCB) (31) and the said concave mirror (85);
Wherein, Layer said far away (21) in the layer structure comprises the sealing (23) around said electric connector (32); Said layer far away comprises the sealing (23) with said layer far away (41); Said layer far away invests said inner cylinder (61), and said layer far away comprises the fin of the heat that produced by the said light emitting diode (35) on the said printed circuit board (PCB) (31) of being used for dissipating.
17. motor vehicle rear assembled lamp as claimed in claim 16 (10) is characterized in that, said printed circuit board (PCB) (31), said nearly layer (41) and said layer far away (21) all are roughly rectangular shape.
18. motor vehicle rear assembled lamp as claimed in claim 16 (10) is characterized in that, a plurality of light emitting diodes (35) are distributed in around the circumference in hole (33) of said printed circuit board (PCB) (31).
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US5673808P | 2008-05-28 | 2008-05-28 | |
| US61/056738 | 2008-05-28 | ||
| US61/056,738 | 2008-05-28 | ||
| US12/259797 | 2008-10-28 | ||
| US12/259,797 | 2008-10-28 | ||
| US12/259,797 US7762701B2 (en) | 2008-05-28 | 2008-10-28 | Rear-loaded light emitting diode module for automotive rear combination lamps |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101592303A CN101592303A (en) | 2009-12-02 |
| CN101592303B true CN101592303B (en) | 2012-12-26 |
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ID=41407100
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009101418146A Pending CN101592301A (en) | 2008-05-28 | 2009-05-26 | The side loading LED module that is used for motor vehicle rear assembled lamp |
| CN2009101418589A Expired - Fee Related CN101592303B (en) | 2008-05-28 | 2009-05-26 | Rear loading LED module for motor vehicle rear assembled lamp |
| CN2009101418574A Expired - Fee Related CN101592302B (en) | 2008-05-28 | 2009-05-26 | Real loading LED module for motor vehicle rear assembled lamp |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009101418146A Pending CN101592301A (en) | 2008-05-28 | 2009-05-26 | The side loading LED module that is used for motor vehicle rear assembled lamp |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101418574A Expired - Fee Related CN101592302B (en) | 2008-05-28 | 2009-05-26 | Real loading LED module for motor vehicle rear assembled lamp |
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| CN (3) | CN101592301A (en) |
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| JP7364409B2 (en) * | 2019-09-26 | 2023-10-18 | 株式会社小糸製作所 | vehicle lamp |
| US11067254B1 (en) | 2019-10-08 | 2021-07-20 | Bestop Baja, Llc | Auxiliary light for mounting to a vehicle |
| US11273751B2 (en) | 2019-10-08 | 2022-03-15 | Bestop Baja, Llc | Auxiliary light for mounting to a vehicle |
| CN114497330B (en) * | 2022-04-18 | 2022-07-12 | 至芯半导体(杭州)有限公司 | TO ultraviolet device packaging structure |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1712769A (en) * | 2004-06-16 | 2005-12-28 | 奥斯兰姆施尔凡尼亚公司 | Light emitting diode lamp with light pipes |
| CN1796864A (en) * | 2004-12-27 | 2006-07-05 | 奥斯兰姆施尔凡尼亚公司 | Led bulb |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2544416Y (en) * | 2002-05-17 | 2003-04-09 | 葛世潮 | Large power LCD |
| CN2937794Y (en) * | 2006-08-15 | 2007-08-22 | 陈洋怀 | Gallery motor vehicle headlight of electronic high power cold light source |
-
2009
- 2009-05-26 CN CNA2009101418146A patent/CN101592301A/en active Pending
- 2009-05-26 CN CN2009101418589A patent/CN101592303B/en not_active Expired - Fee Related
- 2009-05-26 CN CN2009101418574A patent/CN101592302B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1712769A (en) * | 2004-06-16 | 2005-12-28 | 奥斯兰姆施尔凡尼亚公司 | Light emitting diode lamp with light pipes |
| CN1796864A (en) * | 2004-12-27 | 2006-07-05 | 奥斯兰姆施尔凡尼亚公司 | Led bulb |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101592303A (en) | 2009-12-02 |
| CN101592302B (en) | 2013-06-19 |
| CN101592302A (en) | 2009-12-02 |
| CN101592301A (en) | 2009-12-02 |
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