CN108916810B - Light reflector for an optical module of a vehicle lamp, vehicle lamp and motor vehicle - Google Patents
Light reflector for an optical module of a vehicle lamp, vehicle lamp and motor vehicle Download PDFInfo
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- CN108916810B CN108916810B CN201710266537.6A CN201710266537A CN108916810B CN 108916810 B CN108916810 B CN 108916810B CN 201710266537 A CN201710266537 A CN 201710266537A CN 108916810 B CN108916810 B CN 108916810B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
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- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Embodiments of the present invention provide a light reflector for an optical module of a vehicle lamp, and a motor vehicle. The light reflector includes: a first reflection section having a first reflection surface arranged to reflect a first light beam along a reflection direction; a second reflecting portion having a second reflecting surface arranged to reflect a second light beam different from the first light beam; and a connecting portion arranged to connect the first and second reflection portions together, wherein the first and second reflection portions are displaced from each other in the reflection direction and the first reflection portion is provided with a blocking portion for blocking the second light beam.
Description
Technical Field
The invention relates to a light reflector for an optical module of a vehicle lamp, a vehicle lamp and a motor vehicle.
Background
Light reflectors are widely used in devices for optical lighting, signalling, etc., such as in the lamps of motor vehicles. With the advancement of technology and the diversification of consumer demands, the functions required to be realized by the vehicle lamp are also more and more abundant, such as a high beam, a low beam, a position light, a daytime running light, a turn signal, a brake light, and the like. In the current lamp module for a motor vehicle, light reflectors for implementing the above-described various functional lamps are independently provided so as to occupy independent spaces, respectively. However, the light reflector may have different requirements for different light source positions in order to achieve different functions, and therefore, it is difficult to achieve a good effect by simply using one existing light reflector to achieve a plurality of different functions.
Disclosure of Invention
It is an object of the present invention to provide a light reflector which can be used to provide different optical functions.
It is also an object of the invention to provide a vehicle lamp and a motor vehicle comprising the above light reflector.
An embodiment of the present invention provides a light reflector for an optical module of a vehicle lamp, including: a first reflection section having a first reflection surface arranged to reflect a first light beam along a reflection direction; a second reflecting portion having a second reflecting surface arranged to reflect a second light beam different from the first light beam; and a connecting portion arranged to connect the first and second reflection portions together, wherein the first and second reflection portions are displaced from each other in the reflection direction and the first reflection portion is provided with a blocking portion for blocking the second light beam.
In an embodiment, the first and second reflective portions are also offset from each other in a direction perpendicular to the reflection direction.
In an embodiment, the connection portion extends along the reflection direction.
In one embodiment, the connecting portion is provided with a light passing hole through which the second light beam passes to irradiate the second reflecting surface.
In an embodiment, the second reflection portion is located on a side of the first reflection portion facing away from the first reflection surface, and the first reflection portion is provided with an opening through which the second light beam reflected by the second reflection surface passes.
In an embodiment, the first reflection part includes a first sub reflection part and a second sub reflection part spaced apart from each other, and the opening is formed between the first sub reflection part and the second sub reflection part.
In one embodiment, the connection portion includes:
a first sub-connection part arranged to connect an edge of the first sub-reflection part facing the second sub-reflection part with a first edge of the second reflection part; and
a second sub-connection part arranged to connect an edge of the second sub-reflection part facing the first sub-reflection part with a second edge of the second reflection part.
In one embodiment, the first light beam reflected by the first reflecting surface and the second light beam reflected by the second reflecting surface are parallel to each other.
In an embodiment, the light reflector is a unitary piece.
In an embodiment, a plurality of light distribution protrusions are arranged on the first reflecting surface and/or the second reflecting surface.
In an embodiment, the first reflecting surface and the second reflecting surface are both collimating reflecting curved surfaces.
An embodiment of the present invention provides a vehicle lamp including: a light reflector as in any of the above embodiments; a first light source arranged to emit the first light beam; and a second light source arranged to emit the second light beam.
In one embodiment, the first light source is located on a side of the first reflection portion facing the first reflection surface, the second light source is located on a side of the first reflection portion facing away from the first reflection surface, and the first light source and the second light source are separated by the barrier portion of the first reflection portion.
In an embodiment, the connecting portion is arranged to block at least a portion of the second light beam from reaching the first reflective surface.
In one embodiment, the first light source and the second light source are light emitting diode light sources and have different colors.
In the light reflector according to at least one of the above embodiments of the present invention, by providing the first reflecting portion and the second reflecting portion connected by the connecting portion, two kinds of light functions corresponding to the dual light sources can be realized in a single light reflector, and light interference of the first reflecting portion and the second reflecting portion can be effectively reduced.
Drawings
FIG. 1 schematically illustrates a side view of a light reflector and light source according to an embodiment of the invention;
FIG. 2 schematically illustrates a top view of a light reflector and light source according to an embodiment of the present invention;
FIG. 3 schematically illustrates a front view of a light reflector and light source according to an embodiment of the invention; and
fig. 4 schematically shows a light distribution projection on a light reflector according to an embodiment of the present invention.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings. In the specification, the same or similar reference numerals denote the same or similar components. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the general inventive concept of the present invention and should not be construed as limiting the invention.
According to the present general inventive concept, there is provided a light reflector for an optical module of a vehicle lamp, including: a first reflection section having a first reflection surface arranged to reflect a first light beam along a reflection direction; a second reflecting portion having a second reflecting surface arranged to reflect a second light beam different from the first light beam; and a connecting portion arranged to connect the first and second reflection portions together, wherein the first and second reflection portions are displaced from each other in the reflection direction and the first reflection portion is provided with a blocking portion for blocking the second light beam.
Furthermore, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details.
Fig. 1 to 3 schematically show a light reflector 100 according to an embodiment of the present invention. The light reflector 100 includes: a first reflection part 10, a second reflection part 20, and a connection part 30. The first reflective part 10 has a first reflective surface 11, said first reflective surface 11 being arranged for reflecting the first light beam 12 along a reflection direction (e.g. x-direction in fig. 1). The second reflective portion 20 has a second reflective surface 21, said second reflective surface 21 being arranged for reflecting a second light beam 22 different from the first light beam 12. The connection portion 30 is arranged for connecting the first reflection portion 10 and the second reflection portion 20 together. In this example, the first and second reflection parts 10 and 20 are displaced from each other in the reflection direction (x-direction) and the first reflection part 10 is provided with a blocking part 13 for blocking the second light beam 22. In fig. 1 and 2, the first light beam 12 is indicated by a solid arrow and the second light beam 22 is indicated by a dashed arrow.
The light reflector 100 according to the above-described embodiment of the present invention includes two reflecting portions for reflecting two light beams, respectively. The shapes of the reflecting surfaces of the two reflecting portions can be designed independently so that the light beams reflected by the two reflecting portions, respectively, are used to realize different functions. Since the first and second reflection portions are designed for the first and second light beams, respectively, there is a possibility that optical interference may occur between the first and second reflection portions to affect the respective optical function effects. For example, when the second light beam 22 is reflected not only by the second reflecting surface 21 but also by the first reflecting surface 11, the second light beam 22 reflected by the first reflecting surface 11 may be unnecessary and may interfere with the normal emission of the second light beam 22 from the photo reflector 100. The first reflection part 10 is provided with a blocking part 13 for blocking the second light beam 22, and the blocking part 13 can prevent the second light beam 22 from irradiating the first reflection surface 11, thereby avoiding the influence of the reflected light of the first reflection surface 11 on the normal emergent light beam of the second light beam 22. In the example of fig. 1, the second reflection part 20 is located on a side of the first reflection part 10 facing away from the first reflection surface 11, which is exemplary. In the example of fig. 1, since the first reflection part 10 and the second reflection part 20 are displaced from each other in the reflection direction (x direction), the first reflection surface 11 can block the first light flux 12 from being directed to the second reflection surface 22, so that the influence of the reflected light of the second reflection surface 21 on the normal outgoing light flux of the first light flux 12 can be prevented.
First reflecting portion 10 and second reflecting portion 20 are displaced from each other in the reflecting direction (x direction) so that first light flux 12 and second light flux 22 can be emitted independently. In one example, the first and second reflective portions 10 and 20 are also offset from each other in a direction perpendicular to the reflection direction (x-direction) (e.g., the y-direction shown in fig. 1). As an example, the direction perpendicular to the reflection direction may be a direction substantially perpendicular to the reflection direction. Or may be a direction substantially perpendicular to the reflection direction or a direction perceptually perpendicular to the reflection direction. For example, the upper edge of the second reflection part 20 and the lower edge of the first reflection part 10 (or a part thereof) are connected by a connection part 30. Such a misalignment may allow the second light beam 22 to be blocked before being reflected by the second reflecting surface 21 and to be smoothly emitted after being reflected by the second reflecting surface 21.
In an example, the second reflecting surface 21 may reflect the second light beam 22 along the reflecting direction (x direction). That is, the reflection direction of the first light beam 12 reflected by the first reflection surface 11 is coincident with (or parallel to) the reflection direction of the second light beam 22 reflected by the second reflection surface 21.
In an example, the connection portion 30 may extend along the reflection direction. This may advantageously reduce the obstruction of the reflected second light beam 22 by the connecting portion 30. This also makes it possible to utilize the reflection area more fully, so that the first reflection surface 11 and the second reflection surface 21 are as large as possible. As an example, the connection portion 30 may be provided with a light passing hole 31, and the second light beam 22 may be irradiated to the second reflection surface 21 through the light passing hole 31. For example, a light source for emitting the second light beam 22 may be arranged above the light passing hole 31. The size of the clear aperture can be used to control the amount of light of the second light beam 22.
In an example, the second reflection part 20 may be located on a side of the first reflection part 10 opposite to the first reflection surface 11, and the first reflection part 10 may be provided therein with an opening 14 through which the second light beam 22 reflected by the second reflection surface 21 passes. In the embodiment shown in fig. 1 to 3, the first reflection part 10 may include a first sub reflection part 15 and a second sub reflection part 16 spaced apart from each other, and the opening 14 is formed between the first sub reflection part 15 and the second sub reflection part 16. As an example, the connection part 30 may include a first sub-connection part 32 and a second sub-connection part 33. The first sub-connecting portion 32 is arranged to connect an edge of the first sub-reflection part 15 facing the second sub-reflection part 16 with the first edge 24 (upper edge in fig. 1) of the second reflection part 20. The second sub-connecting portion 33 is arranged to connect an edge of the second sub-reflection part 16 facing the first sub-reflection part 15 with the second edge 25 (lower edge in fig. 1) of the second reflection part 20.
However, this is merely exemplary, and not necessary, and for example, the first reflection part 10 may include only one connected portion with the opening 14 formed therein. Alternatively, for another example, the first reflection part 10 may include only one integrated part, and be disposed to be offset up and down from the second reflection part 20.
As an example, the first light beam 12 reflected by the first reflecting surface 11 and the second light beam 22 reflected by the second reflecting surface 21 are substantially parallel to each other. This allows the first beam 12 and the second beam 22 to easily perform the functions of a stop light, a position light, etc.
In an embodiment of the present invention, the light reflector 100 may be a unitary piece. The light reflector 100 having the first and second reflection parts 10 and 20 and the connection part 30 is integrally formed, so that the process can be simplified and the installation can be improved. This eliminates the need to separately make molds for the light reflectors for performing different functions, and only a single mold needs to be made. For the sake of manufacturing convenience, the first reflection part 10, the second reflection part 20 and the connection part 30 may be made in a thin-walled structure, which is also advantageous in saving space.
In an embodiment of the present invention, a plurality of light distribution protrusions 40 may be disposed on the first reflecting surface 21 and/or the second reflecting surface 22, as shown in fig. 4. The light distribution projection 40 is arranged to distribute light from the first light beam 12 or the second light beam 22. As an example, the surface shape of each of the light distribution projections 40 may be set so as to converge (e.g., an upper convex surface) or diverge (e.g., a lower concave surface) the light flux portion reflected by the light distribution projection 40 in a predetermined direction. Note that, even if the surface shape of the light distribution projection 40 is configured to converge the light flux, the converged light flux may become a divergent light flux after passing through the convergence point due to the optical properties. The light distribution protrusion 40 may be used to change the spatial light intensity distribution of the first light beam 12 and/or the second light beam 22 emitted from the light reflector 100. The specific shape of which is set according to the design requirements of the specific functional lamp. Although fig. 4 shows only the light distribution projection 40 on the second reflection portion 20, the light distribution projection 40 on the first reflection portion 10 is similar thereto, and only the specific shape may be different due to the realized function, and thus is not additionally shown.
In one example, the first and second reflective surfaces 11, 21 may each be a collimated reflective curved surface, which may have, for example, a parabolic, hyperbolic, elliptical, or more complex known curved surface shape. As an example, the first reflecting surface 11 and the second reflecting surface 21 may be formed by smooth curved surfaces, or may be formed by splicing a plurality of strip-shaped reflecting elements. The use of a collimating reflective curve allows the first beam 12 and the second beam 22 exiting the light reflector 100 to be directed as far as possible, thereby increasing the beam's illumination distance.
In the embodiment of the present invention, the first reflective surface 11 and the second reflective surface 21 may be, for example, total reflective surfaces or reflective surfaces coated with a reflective layer (e.g., a metal layer).
The embodiment of the invention also provides the car lamp. The vehicle lamp may include: the light reflector 100 according to any of the above embodiments; a first light source 51 arranged to emit said first light beam 12; and a second light source 52 arranged to emit said second light beam 22. The first light source 51 and the second light source 52 of the vehicle lamp may be used to achieve different light functions, for example they may have different colors or have different light powers. However, this is only illustrative and not restrictive to the embodiments of the present invention, for example, the first light source 51 and the second light source 52 may be the same light source, and different light functions may be realized by the structural difference between the first reflecting surface 11 and the second reflecting surface 21. As an example, the first and second light sources 51 and 52 may be Light Emitting Diode (LED) light sources. The LED has the advantages of small volume, low power consumption and high luminous intensity. By adopting the LED light source, the structure of the car lamp can be more compact.
In an example, the first light source 51 may be located on a side of the first reflection part 10 facing the first reflection surface 11, and the second light source 52 may be located on a side of the first reflection part 10 facing away from the first reflection surface 11. The first and second light sources 51 and 52 may be separated by the barrier 13 of the first reflection part 10, as shown in fig. 1. This arrangement is advantageous for saving space. It is also possible to have the first light source 51 facing only the first reflecting surface 11 and the second light source 52 facing only the second reflecting surface 21, thereby avoiding the provision of additional beam shielding means. As an example, the barrier section 13 of the first reflection section 10 may be formed by a portion of the first reflection section 10 on a side facing away from the first reflection surface 11.
As an example, the connection 30 (e.g. the first sub-connection 32) may also be arranged to block at least a part of the second light beam 22 from reaching said first reflecting surface 11, in addition to the blocking portion 13 of the first reflecting portion 10. This may also attenuate or prevent disturbing light caused by the reflection of the second light beam 22 by the first reflecting surface 11.
The vehicle lamp according to the embodiment of the present invention may include one light reflector 100, or may include a plurality of light reflectors 100 and a plurality of first and second light sources 51 and 52. For example, a plurality of light reflectors 100 and their corresponding first and second light sources 51, 52 may be arranged side-by-side or offset to form different patterns.
Embodiments of the present invention also provide a motor vehicle comprising a light reflector 100 according to any of the preceding embodiments or a vehicle light according to any of the preceding embodiments.
In embodiments of the present invention, light reflector 100 may be used to achieve at least two functions in combination, such as high beam, low beam, position light, daytime running light, turn signal, brake light, and the like.
The vehicular lamp described in the embodiment of the invention can be used as a front lamp, a rear lamp, a room lamp, or the like of a motor vehicle.
In embodiments of the present invention, the first light source 51 and the second light source 52 may be used to implement different functions. Thus, they can be switched on and off, respectively, as required. For example, the first light source 51 may be configured to be illuminated when the second light source 52 is turned off. The first light source 51 and the second light source 52 may also be turned on or off simultaneously, depending on design requirements. As an example, a combination of turning on and off the first light source 51 and the second light source 52 may also be used to implement different light functions. As an example, the first and second light sources 51 and 52 may be solid-state light sources, such as Light Emitting Diodes (LEDs), Organic Light Emitting Diodes (OLEDs), and the like. The present invention is not limited thereto and the first and second light sources 51 and 52 may be other types of light sources known in the art.
In embodiments of the present invention, there may be any number of light reflectors 100, first light sources 51, and second light sources 52. For example, the number of the light reflector 100, the first light source 51, and the second light source 52 may be one, two, three, or more.
As an example, the light reflector 100 may be made of transparent glass, resin, or plastic material, such as PMMA (polymethyl methacrylate) or polycarbonate.
By way of example, the light reflector 100 may be supported or suspended by any known suitable means for holding optical elements, such as a pedestal, a boom, or the like.
It should be noted that although the application of the light reflector has been described above by taking a vehicle lamp of a motor vehicle as an example, it should be understood that the light reflector according to the embodiments of the present invention is not limited to the application in the field of vehicle lamps, for example, it can also be used in other fields of optical illumination and signal indication, such as street lamps, billboard lamps, flashlights, etc.
Although the present invention has been described in connection with the accompanying drawings, the embodiments disclosed in the drawings are intended to be illustrative of preferred embodiments of the present invention and should not be construed as limiting the invention. The dimensional proportions in the figures are merely schematic and are not to be understood as limiting the invention.
Although a few embodiments of the present general inventive concept have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the general inventive concept, the scope of which is defined in the claims and their equivalents.
Claims (12)
1. A light reflector for an optical module of a vehicle lamp, comprising:
a first reflection section having a first reflection surface arranged to reflect a first light beam along a reflection direction;
a second reflecting portion having a second reflecting surface arranged to reflect a second light beam different from the first light beam; and
a connecting portion arranged for connecting the first and second reflective portions together,
the first reflection part and the second reflection part are mutually staggered in the reflection direction, the first reflection part is provided with a blocking part for blocking the second light beam, and the blocking part is different from the connecting part;
the second reflecting part is positioned on one side of the first reflecting part, which is back to the first reflecting surface, and an opening for the second light beam reflected by the second reflecting surface to pass through is formed in the first reflecting part;
wherein the connecting portion extends along the reflection direction;
wherein at least a portion of the first reflective portion and the second reflective portion are also offset from each other in a direction perpendicular to the reflection direction.
2. The light reflector of claim 1, wherein the connecting portion is provided with a light passing hole through which the second light beam passes to irradiate the second reflecting surface.
3. The light reflector of claim 1, wherein the first reflection portion includes a first sub-reflection portion and a second sub-reflection portion spaced apart from each other, the opening being formed between the first sub-reflection portion and the second sub-reflection portion.
4. The light reflector of claim 3, wherein the connection portion comprises:
a first sub-connection part arranged to connect an edge of the first sub-reflection part facing the second sub-reflection part with a first edge of the second reflection part; and
a second sub-connection part arranged to connect an edge of the second sub-reflection part facing the first sub-reflection part with a second edge of the second reflection part.
5. The light reflector of any of claims 1-4, wherein the first light beam reflected by the first reflective surface and the second light beam reflected by the second reflective surface are parallel to each other.
6. The light reflector of any of claims 1-4, wherein the light reflector is a unitary piece.
7. The light reflector according to any one of claims 1 to 4, wherein a plurality of light distribution protrusions are provided on the first reflection surface and/or the second reflection surface.
8. The light reflector of any of claims 1-4, wherein the first and second reflective surfaces are each a collimating reflective curved surface.
9. A vehicle lamp, characterized by comprising:
the light reflector according to any one of claims 1 to 8;
a first light source arranged to emit the first light beam; and
a second light source arranged to emit the second light beam.
10. The vehicle light of claim 9, wherein the first light source is located on a side of the first reflective portion facing the first reflective surface, the second light source is located on a side of the first reflective portion facing away from the first reflective surface, and the first and second light sources are separated by the blocking portion of the first reflective portion.
11. The vehicle light of claim 9, wherein the connecting portion is configured to block at least a portion of the second light beam from reaching the first reflective surface.
12. The vehicle light of claim 9, wherein the first and second light sources are light emitting diode light sources and have different colors.
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CN201710266537.6A CN108916810B (en) | 2017-04-21 | 2017-04-21 | Light reflector for an optical module of a vehicle lamp, vehicle lamp and motor vehicle |
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Citations (2)
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CN101144579A (en) * | 2006-09-13 | 2008-03-19 | 株式会社小糸制作所 | Vehicular lamp |
CN102333988A (en) * | 2009-02-27 | 2012-01-25 | 大众汽车有限公司 | Vehicle light |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
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KR101460728B1 (en) * | 2011-10-13 | 2014-11-12 | 현대모비스 주식회사 | a lamp apparatus for vehicles |
CN202868531U (en) * | 2012-10-17 | 2013-04-10 | 广东骑光车灯工业有限公司 | LED headlamps of motor vehicle |
JP2015146270A (en) * | 2014-02-03 | 2015-08-13 | 株式会社小糸製作所 | Vehicular lighting fixture |
JP6410341B2 (en) * | 2014-05-23 | 2018-10-24 | 株式会社小糸製作所 | Vehicle headlamp |
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2017
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Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN101144579A (en) * | 2006-09-13 | 2008-03-19 | 株式会社小糸制作所 | Vehicular lamp |
CN102333988A (en) * | 2009-02-27 | 2012-01-25 | 大众汽车有限公司 | Vehicle light |
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