CN106969329B - Optical deflection device and illumination and/or signal indication device - Google Patents

Optical deflection device and illumination and/or signal indication device Download PDF

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Publication number
CN106969329B
CN106969329B CN201610023224.3A CN201610023224A CN106969329B CN 106969329 B CN106969329 B CN 106969329B CN 201610023224 A CN201610023224 A CN 201610023224A CN 106969329 B CN106969329 B CN 106969329B
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China
Prior art keywords
optical deflection
reflector
light
collimator
deflection device
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CN201610023224.3A
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CN106969329A (en
Inventor
高亚贵
陈琛
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Valeo Lighting Hubei Technical Center Co Ltd
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Valeo Lighting Hubei Technical Center Co Ltd
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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
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/26—Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255
    • 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
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/02—Combinations of only two kinds of elements
    • 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
    • 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]
    • 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
    • F21S43/15—Strips of light sources
    • 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
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/236—Light guides characterised by the shape of the light guide
    • F21S43/241—Light guides characterised by the shape of the light guide of complex shape
    • 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
    • F21S43/30—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors
    • F21S43/31—Optical layout thereof
    • F21S43/315—Optical layout thereof using total internal reflection
    • 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
    • F21V7/04—Optical design
    • 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
    • F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
    • 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
    • F21V2200/00—Use of light guides, e.g. fibre optic devices, in lighting devices or systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
    • F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

The invention provides an optical deflection device (10) comprising a plurality of optical deflection assemblies (11), wherein each of the plurality of optical deflection assemblies (11) comprises: a collimator (12), the collimator (12) having an axis (L); and a reflector (13), the reflector (13) is configured to deflect the light rays (141) from the collimator (12) inside the reflector (13) so as to be emitted from an edge portion of the reflector (13), wherein the plurality of optical deflection assemblies (11) are arranged in parallel with each other, and each reflector (13) of the plurality of optical deflection assemblies (11) at least partially overlaps with a projection of an adjacent reflector (13) in the direction of the axis (L). The invention also provides a lighting and/or signalling device for a motor vehicle. According to the technical scheme of the invention, the lighting patterns with crossed lighting effects can be generated.

Description

Optical deflection device and illumination and/or signal indication device
Technical Field
The present invention relates to the field of vehicle devices, in particular to an optical deflection device and a lighting and/or signaling device for a motor vehicle having the optical deflection device.
Background
The lighting and/or signal indicating device provides necessary lighting and/or signal indicating functions for the vehicle, and the lighting and/or signal indicating functions serve as necessary components of the vehicle and occupy a certain proportion in the design of the vehicle, wherein the lighting device provides an improved view field for the vehicle to run at night and under the condition of insufficient light so as to ensure the running safety; the signal indicating device provides signal indication for other vehicles sharing the road, including automobile tail lamps, brake lamps, steering lamps and the like. As the automotive industry has developed, there is an increasing interest in the visual effects of lighting and/or signalling devices, as well as lighting and/or signalling functions.
Conventional lighting and/or signaling devices typically have a uniform lighting effect, such as a relatively visually uniform lighting effect, wherein the lighting effect is substantially uniform by a single light source scattering or a superposition of multiple light sources to distribute the light in a surface distribution. To produce different visual effects, a common method is to use a transparent cover with different configurations, for example, different shapes are provided for the transparent cover, or a variable transparent pattern is provided on the transparent cover, so as to realize different lighting patterns through the transparent and shading effects of the transparent cover. Conventionally, a lattice-shaped shading area is provided on a translucent cover, and a block-shaped lighting effect can be obtained.
However, it is difficult to achieve the cross-type lighting effect by designing different light-transmitting patterns of the light-transmitting covers.
Disclosure of Invention
The object of the present invention is to overcome the drawbacks of the prior art by providing an optical deflection device which, by itself only, provides a cross-lighting effect for a lighting and/or signaling device for a motor vehicle, thereby improving the visual and lighting effects.
The invention also aims to provide a technical scheme which has small structural change on the lighting and/or signal indicating device and can realize the cross lighting effect.
It is also an object of the present invention to provide a lighting and/or signaling device for a motor vehicle with a cross-lighting effect.
To achieve one of the above objects or purposes, the technical solution of the present invention is as follows:
according to an embodiment of an aspect of the present invention, there is provided an optical deflecting device including a plurality of optical deflecting elements, wherein each of the plurality of optical deflecting elements includes:
a collimator having an axis and comprising a proximal end configured to be proximate to a light source and a distal end opposite the proximal end, the collimator for collimating light from the light source; and
a reflector extending in a plane perpendicular to an axis of the collimator and disposed on a distal end of the collimator, the reflector configured to deflect light rays from the collimator inside the reflector to exit from an edge portion of the reflector in a direction parallel to the axis,
wherein the plurality of optical deflection assemblies are arranged in parallel with each other, and each of the plurality of optical deflection assemblies at least partially overlaps with a projection of an adjacent reflector in the axis direction.
According to a preferred embodiment of the invention, each reflector comprises a bottom surface, a top surface, an outer conical surface and an inner conical surface, the bottom surface and the top surface being arranged opposite to each other, the outer conical surface adjoining and surrounding the bottom surface and the top surface, respectively, the outer conical surface forming a conical surface converging towards the collimator, the inner conical surface being arranged on the bottom surface, the inner conical surface being parallel to the outer conical surface.
According to a preferred embodiment of the invention, a portion of the outer conical surface of a reflector intersects a portion of the outer conical surface of an adjacent reflector to delimit the overlapping portion of the two reflectors.
According to a preferred embodiment of the present invention, a portion of the outer tapered surface of the reflector abuts the bottom surface of an adjacent reflector, and another portion of the outer tapered surface of the reflector abuts the top surface of another adjacent reflector.
According to a preferred embodiment of the invention, the taper angles of the outer and inner tapered surfaces are 45 ° each.
According to a preferred embodiment of the present invention, the overlap is formed on a portion of the reflecting member near an outer periphery of the reflecting member.
According to a preferred embodiment of the present invention, each of the plurality of optical deflecting elements is interconnected with an adjacent reflecting element to form an overlap.
According to a preferred embodiment of the present invention, the reflectors of each of the plurality of optical deflection units have the same structure, and the collimators of each of the plurality of optical deflection units have different lengths so that the proximal ends of all the collimators are located in the same plane.
According to a preferred embodiment of the present invention, a distal end of the collimator is disposed at a central position of the top surface of the reflecting member.
According to a preferred embodiment of the invention, the collimator extends cylindrically.
According to a preferred embodiment of the invention, the cross-section of the collimator perpendicular to the axis is circular, square, pentagonal, hexagonal or other polygonal shape.
According to a preferred embodiment of the present invention, the cross section of the outer conical surface perpendicular to the axis is a circle, a square, a pentagon, a hexagon or other polygonal shapes; and/or the cross section of the inner conical surface, which is perpendicular to the axis, is circular, square, pentagonal, hexagonal or other polygonal shapes.
According to a preferred embodiment of the present invention, the plurality of optical deflecting elements are integrally formed.
According to a preferred embodiment of the invention, the optical deflection means are made of a single material.
According to a preferred embodiment of the invention, the material is selected from one of polycarbonate, polymethyl acrylate or glass.
According to a preferred embodiment of the invention, the inner tapered surface is arranged such that the angle of incidence on the inner tapered surface of the light collimated by the collimator satisfies a total reflection condition, and the outer tapered surface is arranged such that the angle of incidence on the outer tapered surface of the light reflected by the inner tapered surface satisfies a total reflection condition.
According to an embodiment of another aspect of the invention, a lighting and/or signaling device for a motor vehicle is proposed, comprising:
a housing;
one or more light sources disposed within the housing;
the optical deflecting device according to an embodiment of the foregoing aspect, the optical deflecting device being disposed within the housing; and
a light transmissive cover formed on a front surface of the housing and configured to receive light deflected by the optical deflecting device.
According to a preferred embodiment of the invention, the lighting and/or signalling device is one of a headlight, a fog light, a tail light, a brake light, a turn signal light and a daytime running light.
According to a preferred embodiment of the invention, the light source is a tungsten lamp, a halogen lamp, a xenon lamp, a cold cathode fluorescent tube or an LED lamp.
The invention provides a lighting and/or signal indicating device for a motor vehicle, which has a cross-type lighting effect, is particularly suitable for being used in the application of a headlamp, a fog lamp, a tail lamp, a brake lamp, a steering lamp or a daytime running lamp of the motor vehicle, and can generate a cross annular luminous pattern when the device is lighted, thereby enriching the design of the lamp and improving the aesthetic feeling of the lamp. The cross-type lighting effect is realized only by the novel optical deflection device provided by the invention, and other components in the lighting and/or signal indicating device do not need to be specially designed, so that the structure and the layout of the lighting and/or signal indicating device are slightly changed, and the lighting and/or signal indicating device is easy to implement. The optical deflection device utilizes total reflection scattering, and has small light loss and high illumination efficiency. In addition, the optical deflection device of the present invention can generate various cross-type combination patterns by a simple parallel arrangement of the optical deflection components, thereby improving the flexibility of the design of the external appearance of the illumination and/or signal indication device.
Drawings
FIG. 1 is a front view of an optical deflection unit according to an embodiment of the present invention;
FIG. 2 is a top view of an optical deflection device according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of an optical deflection device along a central axis of a collimator according to an embodiment of the present invention;
FIG. 4 is an enlarged view of a portion of the boxed area of FIG. 3 showing the direction of the light rays;
fig. 5a is a diagram of the luminous effect of a lighting and/or signaling device for a motor vehicle using an optical deflection unit according to an embodiment of the present invention; and
fig. 5b is a diagram of the luminous effect of a lighting and/or signaling device for a motor vehicle using another optical deflection device according to an embodiment of the invention.
Detailed Description
Exemplary embodiments of the present invention will hereinafter be described in detail with reference to the accompanying drawings, wherein like or similar reference numerals denote like or similar elements. 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. In other instances, well-known structures and devices are shown in schematic form in order to simplify the drawing.
According to the present general inventive concept, there is provided an optical deflecting device 10 including a plurality of optical deflecting units 11, wherein each of the plurality of optical deflecting units 11 includes: a collimator 12, the collimator 12 having an axis L and comprising a proximal end configured to be proximate to the light source 14 and a distal end opposite the proximal end, the collimator 12 for collimating light rays 141 from the light source 14; and a reflector 13, the reflector 13 extends in a plane perpendicular to an axis L of the collimator 12, and the reflector 13 is disposed on a distal end of the collimator 12, the reflector 13 is configured to deflect the light rays 141 from the collimator 12 inside the reflector 13 so as to be emitted from an edge portion of the reflector 13 in a direction parallel to the axis L, wherein the plurality of optical deflection assemblies 11 are disposed in parallel with each other, and a projection of each reflector 13 of the plurality of optical deflection assemblies 11 with an adjacent reflector 13 in the direction of the axis L at least partially overlaps.
With the optical deflecting device 10 of the present invention, light from the light source 14 is collimated by the collimator 12 and then irradiated to the reflecting member 13, the light is reflected in the reflecting member 13 and emitted from the edge portion of the reflecting member 13, whereby the light emitted from the point light source in a radial shape is converted into parallel light beams by the collimator and then into light beams corresponding to the shape of the edge of the reflecting member by the reflecting member, thereby changing the pattern presented by the light irradiation. Since the reflective member 13 overlaps the adjacent reflective member 13, the light rays emitted from the reflective member 13 intersect, thereby producing a cross-type lighting effect.
FIG. 1 is a front view of an optical deflection unit according to an embodiment of the present invention; fig. 2 is a top view of an optical deflecting device according to an embodiment of the present invention. As shown in fig. 1-2, the optical deflecting device 10 is a linear extension and is composed of eight optical deflecting units 11, each optical deflecting unit 11 is identical in structure and includes a collimator 12 and a reflecting member 13, wherein a light source 14 is disposed at one end of the collimator 12, and the collimator 12 functions to collimate light emitted from the light source 14. The collimator 12 is hollow cylindrical, the reflector 13 is disc-shaped, and the collimator 12 is located at the center of the disc and extends perpendicularly to the disc. According to alternative embodiments, the cross-section of the collimator 12 perpendicular to the axis L may be square, pentagonal, hexagonal or other polygonal shape. The reflecting member 13 of each of the plurality of optical deflecting units 11 has the same structure, and the collimator 12 of each of the plurality of optical deflecting units 11 has a different length so that the proximal ends of all the collimators 12 are located in the same plane.
According to a preferred embodiment of the present invention, the plurality of optical deflecting elements 11 may be integrally formed. In particular, the optical deflection device 10 is made of a single material selected from one of polycarbonate, polymethyl acrylate or glass, which may also be other light-transmissive materials, forming a light-transmissive integral piece.
FIG. 3 is a cross-sectional view of an optical deflection device along a central axis of a collimator according to an embodiment of the present invention; fig. 4 is a partially enlarged view of the block area in fig. 3. As shown in fig. 3 to 4, each of the plurality of optical deflecting elements 11 13 is connected to an adjacent one of the plurality of reflecting elements 13 to form an overlap. The overlap is formed on a portion of the reflecting member 13 near the outer periphery of the reflecting member 13.
Referring to fig. 4, a specific structure of the reflective members 13 will be described, each reflective member 13 includes a bottom surface 21, a top surface 22, outer tapered surfaces 23 and inner tapered surfaces 24, the bottom surface 21 and the top surface 22 are disposed opposite to each other, the outer tapered surfaces 23 are respectively connected with the bottom surface 21 and the top surface 22 and surround the bottom surface 21 and the top surface 22, the outer tapered surfaces 23 form tapered surfaces converging toward the collimator 12, the inner tapered surfaces 24 are disposed on the bottom surface 21, and the inner tapered surfaces 24 are parallel to the outer tapered surfaces 23. The taper angles of the outer tapered surface 23 and the inner tapered surface 24 are 45 °, respectively. The inner tapered surface 24 is arranged such that an incident angle of the light collimated by the collimator 12 on the inner tapered surface 24 satisfies a total reflection condition, and the outer tapered surface 23 is arranged such that an incident angle of the light reflected by the inner tapered surface 24 on the outer tapered surface 23 satisfies a total reflection condition. According to the principle of total reflection, in order to realize total reflection of light at the inner cone surface 24 and the outer cone surface 23, the refractive index of the material of the reflecting member is greater than that of the external environment medium (such as air), and the incident angle of the light on the inner cone surface 24 and the outer cone surface 23 is greater than the critical angle of total reflection.
It can be seen that the reflectors 13 form a truncated cone structure consisting of a bottom surface 21, a top surface 22, an outer tapered surface 23 and an inner tapered surface 24, the interior of the truncated cone forms the region S, and the reflectors 13 meet adjacent reflectors 13 at the top surface 22. Referring to fig. 4, the light emitted from the light source 14 is first changed into parallel light 141 by the collimator 12, the parallel light is incident on the conical inner tapered surface 24, the light is reflected toward the outer tapered surface 23 due to the total reflection on the inner tapered surface 24, and the reflected light is reflected again by the outer tapered surface 23 and then exits from the bottom surface 21 of the reflector 13 at the edge of the reflector 13. Thereby, the light deflected by each optical deflecting unit 11 becomes a circular ring, and in the case where the reflectors 13 are superimposed, circular ring lighting patterns intersecting each other are formed.
In the embodiment of fig. 1-4, the cross-section of the outer cone 23 perpendicular to the axis L is circular, and the cross-section of the inner cone 24 perpendicular to the axis is also circular, in alternative embodiments, the cross-section of the outer cone 23 perpendicular to the axis L may be square, pentagonal, hexagonal, or other polygonal shape, and the cross-section of the inner cone 24 perpendicular to the axis may be square, pentagonal, hexagonal, or other polygonal shape, respectively. This enables a square, pentagonal, hexagonal, or other polygonal intersecting pattern to be formed. Further, by changing the way the optical deflecting elements 11 are arranged in parallel, a more abundant crossing pattern can be formed. Fig. 5a and 5b are respectively light effect diagrams of a lighting and/or signaling device for a motor vehicle using an optical deflection device according to an embodiment of the present invention, in which lighting patterns forming square crossings and five-ring crossings, respectively, are shown.
According to another aspect of the present invention, there is also provided a lighting and/or signalling device for a motor vehicle, comprising:
a housing;
one or more light sources 14, the one or more light sources 14 disposed within the housing;
the aforementioned optical deflecting device 10, said optical deflecting device 10 being disposed within said housing; and
a light-transmissive cover formed on a front surface of the housing and configured to receive light deflected by the optical deflecting device 10.
According to an embodiment of the invention, the lighting and/or signaling device is a headlight, a fog light, a tail light, a brake light, a turn signal light or a daytime running light. The light source 14 is a tungsten lamp, a halogen lamp, a xenon lamp, a cold cathode fluorescent tube or an LED lamp.
The optical deflection device and the lighting and/or signaling device for a motor vehicle of the present invention provide the following advantages: the light-emitting pattern has a cross-type lighting effect; the cross-type lighting effect can be realized only by separately providing a novel optical deflection device without specially designing other components in the lighting and/or signal indicating device, so that the structure and the layout of the lighting and/or signal indicating device are slightly changed and are easy to implement.
Although embodiments of the present invention 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 invention. The scope of applicability of the present invention is defined by the appended claims and their equivalents.

Claims (17)

1. An optical deflection device (10) comprising a plurality of optical deflection assemblies (11), wherein each of the plurality of optical deflection assemblies (11) comprises:
a collimator (12), the collimator (12) having an axis (L) and comprising a proximal end configured to be proximate to a light source (14) and a distal end opposite the proximal end, the collimator (12) for collimating light rays (141) from the light source (14); and
a reflector (13), the reflector (13) extending in a plane perpendicular to an axis (L) of the collimator (12), and the reflector (13) being disposed on a distal end of the collimator (12), the reflector (13) being configured such that light rays (141) from the collimator (12) are deflected inside the reflector (13) so as to exit from an edge portion of the reflector (13) in a direction parallel to the axis (L),
wherein the plurality of optical deflection assemblies (11) are integrally formed and arranged in parallel to each other, and each reflector (13) of the plurality of optical deflection assemblies (11) at least partially overlaps with a projection of an adjacent reflector (13) in the direction of the axis (L);
wherein each reflector (13) comprises a bottom surface (21), a top surface (22), an outer conical surface (23) and an inner conical surface (24), the bottom surface (21) and the top surface (22) are arranged opposite to each other, the outer conical surface (23) is respectively connected with the bottom surface (21) and the top surface (22) and surrounds the bottom surface (21) and the top surface (22), the outer conical surface (23) forms a conical surface converging towards the collimator (12), the inner conical surface (24) is arranged on the bottom surface (21), and the inner conical surface (24) is parallel to the outer conical surface (23).
2. Optical deflection device (10) according to claim 1,
a part of the outer tapered surface (23) of the reflector (13) intersects a part of the outer tapered surface (23) of the adjacent reflector (13) to define a boundary of the overlapping portion of the two reflectors (13).
3. Optical deflection device (10) according to claim 2,
one part of the outer tapered surface (23) of the reflector (13) abuts the bottom surface (21) of the adjacent reflector (13), and the other part of the outer tapered surface (23) of the reflector (13) abuts the top surface (22) of the other adjacent reflector (13).
4. Optical deflection device (10) according to claim 3,
the taper angles of the outer taper surface (23) and the inner taper surface (24) are 45 degrees respectively.
5. Optical deflection device (10) according to claim 1,
is formed overlapping on a portion of the reflecting member (13) near the outer periphery of the reflecting member (13).
6. Optical deflection device (10) according to claim 1,
each of the plurality of optical deflecting elements (11) is interconnected with an adjacent one of the plurality of reflecting elements (13) to form an overlap.
7. Optical deflection device (10) according to claim 1,
the reflectors (13) of each of the plurality of optical deflection units (11) have the same structure, and the collimators (12) of each of the plurality of optical deflection units (11) have different lengths so that the proximal ends of all the collimators (12) are located in the same plane.
8. Optical deflection device (10) according to claim 1,
the distal end of the collimator (12) is disposed at a central position of the top surface (22) of the reflector (13).
9. Optical deflection device (10) according to claim 1,
the collimator (12) extends in a cylindrical shape.
10. Optical deflection device (10) according to claim 9,
the cross section of the collimator (12) perpendicular to the axis (L) is circular, square, pentagonal, hexagonal or other polygonal shape.
11. Optical deflection device (10) according to claim 1,
the section of the outer conical surface (23) perpendicular to the axis (L) is circular, square, pentagonal, hexagonal or other polygonal shapes; and/or the cross section of the inner conical surface (24) perpendicular to the axis (L) is circular, square, pentagonal, hexagonal or other polygonal shape.
12. Optical deflection device (10) according to any one of claims 1-11,
the optical deflection device (10) is made of a single material.
13. Optical deflection device (10) according to claim 12,
the material is selected from one of polycarbonate, polymethyl acrylate or glass.
14. Optical deflection device (10) according to claim 1,
the inner cone surface (24) is arranged such that the angle of incidence on the inner cone surface (24) of the light collimated by the collimator (12) satisfies a total reflection condition, and the outer cone surface (23) is arranged such that the angle of incidence on the outer cone surface (23) of the light reflected by the inner cone surface (24) satisfies a total reflection condition.
15. A lighting and/or signaling device for a motor vehicle, comprising:
a housing;
one or more light sources (14), the one or more light sources (14) disposed within the housing;
optical deflection device (10) according to any one of claims 1 to 14, the optical deflection device (10) being arranged within the housing; and
a light transmissive cover formed on a front surface of the housing and configured to receive light deflected by the optical deflecting device (10).
16. The lighting and/or signaling device of claim 15,
the lighting and/or signaling device is one of a headlamp, a fog light, a tail light, a brake light, a turn signal light, and a daytime running light.
17. The lighting and/or signaling device of claim 15,
the light source (14) is a tungsten lamp, a halogen lamp, a xenon lamp, a cold cathode fluorescent tube or an LED lamp.
CN201610023224.3A 2016-01-13 2016-01-13 Optical deflection device and illumination and/or signal indication device Active CN106969329B (en)

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