WO2017041630A1 - Led信号灯 - Google Patents

Led信号灯 Download PDF

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Publication number
WO2017041630A1
WO2017041630A1 PCT/CN2016/096648 CN2016096648W WO2017041630A1 WO 2017041630 A1 WO2017041630 A1 WO 2017041630A1 CN 2016096648 W CN2016096648 W CN 2016096648W WO 2017041630 A1 WO2017041630 A1 WO 2017041630A1
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WO
WIPO (PCT)
Prior art keywords
light
led
light source
lens
cover
Prior art date
Application number
PCT/CN2016/096648
Other languages
English (en)
French (fr)
Inventor
陈必寿
关彦青
杜金
程爱群
Original Assignee
上海三思电子工程有限公司
三思光电科技（上海）有限公司
上海三思科技发展有限公司
嘉善三思光电技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 上海三思电子工程有限公司, 三思光电科技（上海）有限公司, 上海三思科技发展有限公司, 嘉善三思光电技术有限公司 filed Critical 上海三思电子工程有限公司
Publication of WO2017041630A1 publication Critical patent/WO2017041630A1/zh

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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
    • F21S8/00—Lighting devices intended for fixed installation
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/16—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting
    • F21V17/164—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting the parts being subjected to bending, e.g. snap joints
    • 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
    • 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
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • 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
    • F21W2111/00—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00

Definitions

  • This patent application relates to the field of LED lighting technology, and in particular to an LED signal lamp.
  • Existing signal lights such as ship signal lights, generally use an optical structure consisting of a halogen light source, a ring-shaped threaded glass (Fresnel lens), a light barrier, and the like.
  • a halogen light source a ring-shaped threaded glass
  • a light barrier a light barrier
  • Such navigation signals have the following problems: 1. Halogen light source----low luminous efficiency (the whole lamp can meet the national standard above 60W), poor seismic capacity and large volume; 2.
  • the purpose of this patent application is to provide an LED signal lamp, and to provide various light distribution schemes to solve the problems existing in the prior art signal lamps.
  • an LED signal lamp comprising: a top cover, a base and a lamp body disposed therebetween; the lamp body comprises: a smooth surface provided on the outermost layer a light cover, the lamp body further comprising at least one LED light source located in the light transmissive cover, and a light distribution component for distributing light to the LED light source, the light distribution component comprising: at least one collimating lens.
  • the collimating lens comprises: a light incident surface covering the LED light source, a light emitting surface having at least a portion disposed to emit light toward the light transmissive cover, and a reflection reflecting the received light toward the light emitting surface.
  • a surface of the LED light source that is refracted by the illuminating surface and the illuminating surface is enlarged along a path that propagates toward the transmissive cover, and the light emitted by the LED light source passes through the illuminating surface The angle of refraction of the refraction and reflection surface is reduced or unchanged along the path propagating toward the exit surface.
  • the collimating lens comprises: a lens body, which is a solid structure, comprising: a convex arc-shaped light-emitting surface, a mounting surface opposite to the light-emitting surface, and a surface connected to the light-emitting surface and the mounting surface At least two opposite end faces; a first recessed portion disposed on the LED light source, recessed from the mounting surface of the lens body, the inner surface of which forms a light incident surface corresponding to the light exiting surface;
  • the light surface includes a pair of side faces disposed opposite to opposite end faces of the lens body and a connection face connecting the pair of side faces; a pair of second recesses formed by recessing from both end faces of the lens body, each The second concave The portion forms a reflecting surface toward the surface of the LED light source.
  • the light distribution component comprises: the collimating lens, and the fixed cover is disposed outside the LED light source.
  • the LED signal lamp further includes: a light source mounting member disposed in the transparent cover, the light source mounting member having at least one bearing surface for setting the LED light source.
  • the bearing surface is disposed at a middle portion of the lamp body toward the transparent cover.
  • the light-emitting surface is provided with a light intercepting portion, and the light intercepting portion is located on at least one side of the LED light source for refracting light from the LED light source to the side.
  • the light intercepting portion is formed by arranging a plurality of prisms having a triangular cross section.
  • the light source mounting member is cylindrical and has a polygonal cross section, and each side corresponds to one bearing surface.
  • the LED signal lamp further includes: a lens cover covering the lens and fixedly coupled with the light source mounting member, the lens cover having a hole portion exposing the lens.
  • At least two opposite sides of the bearing surface are respectively provided with a first engaging portion, and the lens cover is provided with a second engaging portion that is engaged with the first engaging portion to realize Fixed.
  • the collimating lens is outwardly extended to form a convex portion, and the convex portion is provided with a perforation for fixing purposes; or the collimating lens is provided with a positioning portion, the positioning portion and the collimating lens The location to be installed corresponds to the combination.
  • the lamp body has at least one bearing surface for setting an LED light source, and the bearing surface faces the top cover or the base, and is disposed at at least one of the following parts: the middle of the lamp body The lamp body corresponds to one end of the top cover and one end of the lamp body corresponding to the base.
  • the collimating lens has a light incident surface covering the LED light source, a light emitting surface having at least a portion disposed to emit light toward the light transmissive cover, and a reflection reflecting the received light toward the light emitting surface.
  • the light emitted by the LED light source passes through the refraction of the light incident surface, the reflection of the reflective surface, and the refraction of the light exit surface, so that the LED light source emits light to the top cover or the base at least partially to be emitted toward the light transmissive cover.
  • the collimating lens comprises: a lens body, which is a solid structure, comprising: a mounting surface, a top end surface opposite to the mounting surface, and a light emitting surface connecting the mounting surface and the top surface; the cover is disposed on the LED light source
  • the first concave portion is recessed from the mounting surface of the lens body, and the inner surface thereof constitutes a light incident surface corresponding to the light exit surface; and the light incident surface opposite to the front end surface has a tip end portion facing the top end surface
  • the tapered surface has an arc that is recessed toward the light source; the second recess is recessed from the top end surface of the lens body, and the second recess forms a reflecting surface toward the surface of the LED light source.
  • the present patent application provides an LED signal lamp, comprising: a top cover, a base, and a lamp body disposed therebetween; the lamp body includes: a translucent cover having a smooth surface disposed on the outermost layer, The lamp body further includes at least one LED light source located in the transparent cover, and a light distribution component for distributing light to the LED light source, the light distribution component comprising: at least one collimation
  • the LED signal lamp provided by the invention can meet the requirements of the signal lamp with a plurality of light distribution designs, and is energy-saving and environmentally friendly, and has low cost.
  • FIG. 1 is a schematic structural view of an LED signal lamp in an embodiment of the present patent application.
  • FIG. 2 is a longitudinal cross-sectional view showing an LED signal lamp in an embodiment of the present patent application.
  • FIG. 3 is an exploded perspective view showing a part of components of an LED signal lamp in an embodiment of the present patent application.
  • FIG. 4 is a schematic view showing the outer structure of a light distribution assembly according to an embodiment of the present application.
  • FIG. 5 is a schematic view showing the internal perspective of the light distribution assembly of FIG. 4.
  • Fig. 6 is a schematic cross-sectional view taken along the line A-A of Fig. 4.
  • Fig. 7 is a schematic cross-sectional view taken along the line B-B of Fig. 4.
  • Figure 8 shows a schematic view of the optical path shown at the angle of Figure 6.
  • Figure 9 shows a schematic view of the optical path shown at the angle of Figure 7.
  • Figure 10 is a graph showing the light distribution of the light distribution assembly of Figure 4.
  • Figure 11 is a schematic view showing the optical path of a light intercepting portion applied to a lens in an embodiment of the present patent application.
  • FIG. 12a is a schematic structural view showing an LED lighting unit combination for realizing LED signal design in an embodiment of the present patent application.
  • Figure 12b is a light distribution graph of the embodiment of Figure 12a.
  • FIG. 13a is a schematic structural view showing still another LED lighting unit combination for realizing LED signal design in an embodiment of the present patent application.
  • Figure 13b is a light distribution graph of the embodiment of Figure 13a.
  • FIG. 14a is a schematic structural view showing still another LED lighting unit combination for realizing LED signal design in an embodiment of the present patent application.
  • Figure 14b is a light distribution graph of the embodiment of Figure 14a.
  • Figure 15 is a block diagram showing the structure of a light distribution assembly in another embodiment of the present application.
  • 16 to 18 are schematic views showing various optical paths under the action of the light distribution assembly of Fig. 15.
  • 19 through 21 are schematic views showing the structure of a plurality of embodiments using the light distribution assembly of Fig. 15.
  • the core idea of the present invention is that since the use of the light distribution component includes the collimating lens, the thread structure of the Fresnel lens can be avoided on the translucent cover, so that the surface of the translucent cover is smooth, thereby avoiding the dust or corrosion. Light loss Lost or potentially dangerous.
  • the structure of the collimating lens can be more flexible and can adapt to the light distribution requirements of more types of lamps.
  • the LED signal lamp 1 provided by the present invention comprises a top cover 11 , a base 13 and a lamp body 12 disposed therebetween.
  • the lamp body 12 includes a translucent cover 121 having a smooth surface provided on the outermost layer.
  • the transparent cover 121 may be, for example, a cylindrical shape, and the transparent cover 121 may be a transparent material such as glass or PC, which enables the light to be transmitted with an efficiency of 94% or more, and The surface is smooth without the problem of light decay caused by stagnant water and ash.
  • the outermost layer here refers to the position of the LED light distribution light path in the optical device, and does not mean that the transparent cover needs to be at the outermost layer of the signal light, and the outer side of the transparent cover may also have non-optical devices. Such as baffles, fixtures, decorations, and the like.
  • the lamp body may further include at least one LED light source located in the transparent cover 121 and a light distribution component for distributing light to the LED light source, the LED light source being, for example, an LED chip loaded on the substrate;
  • the light distribution component is used to convert the LED half-space Lambertian illumination into a type of illumination that conforms to the illumination standard of the signal lamp by reflection and/or refraction.
  • the light distribution component may include: a collimating lens.
  • the LED signal lamp uses different configurations of the light distribution component and the LED light source to provide a plurality of embodiments, wherein the first embodiment and the second embodiment adopt a lens as a light distribution component; the embodiments are not contradictory.
  • Features can be combined with each other:
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • the lamp body 22 of the LED signal lamp 2 includes a cylindrical light source mounting member 222 disposed in the light transmissive cover 221, and the light source mounting member 222 has at least one for setting LEDs.
  • the bearing surface 2221 of the light source in particular, the bearing surface 2221 is disposed at a central portion of the lamp body 22 toward the transparent cover 221, and in the embodiment, the bearing surface 2221 is disposed in a lateral direction as illustrated, thereby Facing the side wall of the transparent cover 221 on the peripheral side thereof, the light emitted from the LED light source carried by the LED light source can more easily emit light from the transparent cover 221 .
  • the bearing surfaces 2221 is provided with an LED lighting unit 223, and the LED lighting unit 223 includes an LED substrate 2231 (which may be an aluminum substrate) provided with an LED light source 2232 (such as a light source chip).
  • the LED lighting unit 223 further includes: at least one collimating lens 2233, and the fixing cover is disposed on the LED light source 2232 outer.
  • the central portion of the light source mounting member 222 penetrates to form a penetrating portion for driving the LED driving power source 24.
  • the penetrating portion and the LED driving power source 24 are shape-matched or worn.
  • the inner wall of the permeable portion is provided with a member (not shown) for positioning the LED driving power source 24, thereby locating the LED driving power source 24 penetrating the penetrating portion in the lateral direction of the drawing; and as shown in FIG. 3 or FIG.
  • the cross section of the penetrating portion is a polygon, and the so-called polygon has a shape of three or more sides, and each side corresponds to one carrying surface 2221, and the number of sides of the polygon is set according to the light distribution requirement of the specific illumination angle of the lamp, in this embodiment.
  • the cross-section is triangular, that is, has three bearing surfaces.
  • any number of multi-faceted cylinders composed of bearing surfaces may be selected, preferably, for convenient light distribution design.
  • the symmetrical polygons for example, may be regular polygons, diamonds, etc., which are preferably equilateral triangles in this embodiment.
  • the LED light source 2232 is disposed on the lateral bearing surface 2221 of the light source mounting member 222, it may be arranged in a regular polygon. The light in all directions is uniform; and, as shown in FIG. 2, the top cover 21 and the base 23 may be provided with a shape corresponding to the cross-sectional shape of the light source mounting member 222 (which may also include the LED driving power source 24).
  • the recess such as the combination of the recess, can position the light source mounting member 222 between the top cover 21 and the base 23.
  • top cover 21 and the base 23 can also be shaped to fit the cross section of the transparent cover 221
  • the recessed portion 221, for example, the translucent cover 221 is cylindrical, and the top cover 21 and the base 23 are provided with corresponding annular recesses to join the side walls of the translucent cover 221.
  • the LED signal lamp 2 further includes a lens cover 224 that is covered by the collimating lens 2233 and fixedly coupled with the light source mounting member 222.
  • the lens cover 224 has an exposed cover.
  • the hole portion of the collimating lens 2233 (for example, a square hole as shown); for example, referring to FIG. 12a, at least opposite sides of the bearing surface 2221 are respectively provided with a first engaging portion 22211, and the lens cover is respectively provided.
  • the second engaging portion 2241 is engaged with the first engaging portion 22211 to achieve the fixing.
  • the first engaging portion 22211 and the second engaging portion 2241 may be opposite in bending direction.
  • the first engaging portion 22211 is a pair of structures formed by projecting upward from the bearing surface 2221 and bending in the opposite direction (outward in the drawing), and the first engaging portion 22211 is formed by bending.
  • the second engaging portion 2241 is a flange that is bent in the same direction on both sides of the lens cover 224 but opposite to the bending direction of the first engaging portion 22211, so that the lens cover 224 passes the card.
  • the joint can be fixed to the bearing surface 2221.
  • the lens cover 224 has an arch shape in cross section so as to neither obstruct the main light-emitting area of the lens 2233 nor limit the stray light of the edge of the lens 2233 to the main light-emitting area. Impact.
  • the collimating lens 2233 includes: a light incident surface covering the LED light source, and at least having a light shielding cover disposed to face the light transmissive cover a light-emitting surface of the light-emitting portion and a reflection surface that reflects the received light toward the light-emitting surface; the light emitted from the LED light source passes through the refracted exit angle of the light-incident surface and the light-emitting surface to propagate along the light-transmitting cover Expanding on the path, the light emitted by the LED light source passes through the input The refraction of the smooth surface and the reflected angle of the reflected surface are reduced or unchanged along the path propagating toward the exit surface.
  • the illumination curve of the LED light source is adjusted to conform to the illumination curve of the signal lamp standard, and the curvature, the curvature, and the refractive index of the material are adjusted according to the law of refraction and the law of reflection.
  • the specific shape can change accordingly.
  • the specific shape of the lens in this embodiment is as follows: a lens body and a first recess 22335 and a second recess 22332 provided in the lens body.
  • the lens body is a body surrounded by a convex arc-shaped light-emitting surface 22331, a mounting surface 22330 opposite to the light-emitting surface, and two opposite end faces that are in contact with the light-emitting surface 22331 and the mounting surface 22330. structure.
  • the lens body may be, for example, a longitudinally-cut partial cylinder or an elliptical cylinder (eg, a semi-cylindrical or semi-elliptical cylinder), and the light-emitting surface 22331 may be arched.
  • the curved surface is made of a convex curved surface for the diffusion of LED light. Referring to FIG. 7 and FIG. 9, FIG. 7 is a cross-sectional view of FIG.
  • FIG. 9 is exemplarily shown in FIG.
  • the light-emitting path under the action of the light surface 22331 is described.
  • the mounting surface 22330 is the opposite surface of the light-emitting surface, and is illustrated as a bottom surface.
  • the lens body is mounted toward the LED light source 2232 by the mounting surface 22330.
  • the first recess 22335 is recessed from the mounting surface 22330 of the lens body, and is disposed outside the LED light source 2232.
  • the inner surface of the first recess 22335 is configured to be a light incident surface corresponding to the light emitting surface, the light incident surface includes a pair of side surfaces 22335a disposed toward opposite end faces of the lens body, and a connecting surface 22335b connecting the pair of side surfaces.
  • the first recess 22335 may be similar in shape to the lens body, and is a longitudinally sectioned partial cylinder or an elliptical body.
  • the pair of side faces 22335a are respectively opposite to the pair of end faces for two
  • the connecting surface 22335b may be a curved surface, and preferably, as shown in FIG. 5, the connecting surface 22335b protrudes toward the LED light source 2232, thereby changing the light transmitted from the connecting surface 22335b.
  • the light emitted from the light source 2232 after passing through the lens 2233, obtains a larger illumination angle on the radial direction of the lens 2233 and a narrower illumination angle in the axial direction of the lens 2233, similar to the outgoing light of the fan column.
  • the second recess 22332 is formed concavely from both end faces of the lens body, and may be concave or partially concave on the entire end surface, and each of the second recesses 22332 faces the surface of the LED light source 2232.
  • a reflecting surface 22332a (preferably a total reflecting surface), wherein the LED light source 2232 transmits at least the light emitted from the pair of side surfaces 22335a to the light emitting surface 22331 by reflection of the reflecting surface 22332a.
  • the pair The second concave portion 22332 is symmetrically formed on the two end faces to equalize the light emitted by the two reflecting surfaces 22332a.
  • the concave apex of the pair of second concave portions 22332 is Falling on the mounting surface 22330, the portions of the formed reflecting surface 22332a can be directed toward the light exiting surface 22331 without facing the mounting surface 22330.
  • the direction of the vertical paper surface in FIG. 7 is defined as the longitudinal direction
  • the left and right direction of FIG. 7 is the horizontal direction
  • FIG. 6 is the cross section perpendicular to FIG. Figure, then the left and right sides in Figure 6.
  • the direction is the longitudinal direction
  • the direction perpendicular to the paper surface is the lateral direction.
  • the light emitted by the LED light source 2232 passes through the connecting surface 22335b to form parallel light to reach the light emitting surface 22331, and the other portion passes through the reflection of the side surface 22335a of the light incident surface and the reflection surface 22332a.
  • Parallel light reaches the exit surface 22331 (ideally, the parallel light is absolutely parallel, but it is not necessarily absolutely parallel in actual production or design). Due to the limiting effect of the reflective surface 22332a on the lateral light output of the LED light source 2232, the light is transmitted in the lateral direction. The angle becomes smaller. On the other hand, as shown in the optical path diagram shown in Fig. 9, in the longitudinal section, after the refraction of the light incident surface and the light exit surface 22331, the longitudinal propagation angle becomes large (i.e., outwardly diffused). As a result, the half-space Lambertian illumination of the original LED light source 2232 passes through the light distribution of the lens, and achieves the purpose of light distribution in the lateral direction and the longitudinal direction, respectively, and the light intensity becomes more uniform.
  • the light emitted from the LED light source 2232 is refracted from the light incident surface, a part of the light passing through the material medium of the collimating lens 2233 (for example, the light emitted from the connecting surface 22335b of the light incident surface) directly reaches the light emitting surface, and the other portion (for example, from the light entering the light)
  • the light emitted from the side surface of the surface is reflected by the reflecting surface 22332a and reaches the light emitting surface 22331. If the concave apex of the second concave portion 22332 does not fall on the mounting surface 22330, the reflecting surface 22332a is partially oriented.
  • the mounting surface 22330 affects the light extraction efficiency. Of course, although it is not the most preferred embodiment, it is also encompassed within the scope of the present patent application.
  • the illuminating angle of the light emitted by the LED light source 2232 through the illuminating surface and the illuminating surface 22331 is enlarged along a path propagating toward the transparent cover 221, and the light emitted by the LED light source 2232 passes through.
  • the angle of reflection of the refracting and reflecting surface 22332a of the light incident surface is reduced or unchanged along a path propagating toward the light exiting surface 22331; the collimating lens 2233 is separately controlled by the lateral and longitudinal light rays of the light source 2232.
  • the light distribution effect of the lateral and longitudinal angles is nearly doubled, and the requirements of the ship navigation signal are met, and the optical efficiency is as high as 88% or more. Referring to FIG. 10, the curve of the light distribution through the collimating lens is shown. Figure.
  • the light-emitting surface 22331 is provided with a light intercepting portion 22334, and the light intercepting portion 22334 is located on at least one side of the LED light source 2232 (preferably as shown in the figure)
  • the light intercepting portion 22334 has at least one pair, and is located on opposite sides of the LED light source 2232 on the light emitting surface 22331; specifically, the light intercepting portion 22334 may be multiple
  • the triangular prisms are arranged in a convex arrangement, and referring to FIG.
  • each prism of the light intercepting portion 22334 refracts the light from the LED light source 2232 laterally, thereby avoiding
  • the main light-emitting area in the middle realizes the light-cutting requirements of traffic lights, especially ship navigation signals.
  • the lens body is integrally formed with a convex portion 22333, preferably formed from a junction of the light-emitting surface 22331 and the mounting surface 22330, and the convex portion 22333 is fixed.
  • a perforation 22333a for fixing to a position to be mounted in combination with a fixing member such as a rivet, a screw, etc.
  • a fixing member such as a rivet, a screw, etc.
  • the mounting surface of the lens body may be provided with a positioning portion for being combined with a position to be mounted to obtain Positioning, the combination includes: concave-convex fit, A snap joint or the like, for example, the positioning portion is one or more protrusions, and the position to be mounted is provided with a number one corresponding and shape-matched recesses, which are combined to position the lens body.
  • the luminaire structure in this embodiment corresponds to different types of signal lights by a combination of different mounting manners of different numbers of LED lighting units 223 on the bearing surface:
  • the LED lighting unit 223 is disposed on only one side of the carrying surface 2221 or the LED lighting unit 223 of only one side of the carrying surface 2221 is illuminated, thereby achieving, for example, a small angle on one side of the ship signal light (60° to 120°).
  • the design of the signal light (such as the left/right side light, etc.) for the lighting demand, and the corresponding light distribution curve for Fig. 12b.
  • the LED light-emitting unit 223 is disposed on both side bearing surfaces 2221 or only the LED light-emitting units 223 of the two-side bearing surface 2221 are illuminated, thereby achieving a single-angle small angle (120°-240°) illumination in a ship signal light, for example.
  • the design of the required signal lights (such as xenon lamps, xenon lamps, towing lamps, etc.),
  • Figure 13b is the corresponding light distribution curve.
  • the LED light-emitting unit 223 is disposed on the three-side bearing surface 2221 or the LED light-emitting unit 223 of the three-side bearing surface 2221 is illuminated, thereby achieving a large angle (240° to 360°), for example, a ring light in a ship signal light.
  • Design; Figure 14b is a corresponding light distribution graph.
  • the LED light source and the light distribution component do not necessarily have to be disposed on the side of the light source mounting member.
  • the light source mounting member may also be omitted, and the position of the LED light source may be changed, and the adopted position is adopted.
  • the structure and setting position of the straight lens vary.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • the lamp body has at least one bearing surface for setting the LED light source, and the bearing surface faces the top cover or the base, that is, the LED light source disposed on the bearing surface faces the top.
  • the LED light source may be disposed at at least one of the following places: a middle portion of the lamp body, an end of the lamp body corresponding to the top cover, and an end of the lamp body corresponding to the base, etc.
  • the position and structure of the components also need to be changed accordingly, so that the light emitted by the LED light source can be changed from the light-transmitting cover by the action of the light distribution component.
  • the collimating lens 3 has a light incident surface 34 covering the LED light source, at least configured to face the a light-emitting surface 32 of a portion of the light-transmitting cover and a reflection surface 33 for reflecting the received light toward the light-emitting surface 32; the light emitted by the LED light source 4 is reflected by the light-receiving surface 34 and reflected by the reflective surface 33 And the refraction of the light-emitting surface 32 causes the LED light source 4 to emit light to the top cover or the base at least partially to be emitted in the direction of the lateral light-transmissive cover 5.
  • the illumination curve of the LED light source is adjusted to the illumination curve conforming to the standard of the signal lamp by the cooperation of the faces of the lens.
  • the specific shape of the lens can be changed by adjusting the curvature of the respective mating faces, the curvature, and the refractive index of the material according to the law of refraction and the law of reflection.
  • the collimating lens 3 includes: a lens body, which is a solid structure, and includes: a mounting surface 30, a top end surface 31 opposite to the mounting surface 30, and the light emitting surface 32 connecting the mounting surface 30 and the top end surface 31; a first recess 35 for covering the LED light source 4, from the lens body
  • the mounting surface 30 is concavely formed, and the inner surface thereof constitutes the light incident surface 34 corresponding to the light exit surface;
  • the light incident surface 34 opposite to the front end surface 31 has a tapered surface 341 whose tip end faces the tip end surface and
  • the arc has a curvature that is recessed toward the LED light source 4;
  • the second recess 36 is recessed from the tip end surface 31 of the lens body, and the second recess 36 forms the reflecting surface 33 toward the surface of the LED light source 4.
  • the collimator lens 3 is provided with light for the LED light source 4 under different angles of setting or the light-incident surface of the refractive index and the reflecting surface.
  • the change of the transmission path caused by the action (the angle or the curvature and the change of the refractive index, although the slight differences are not illustrated in FIGS. 16 to 18, but according to the optical laws such as reflection and refraction, combined with the illustrated optical path, Those skilled in the art can understand the changes.
  • the light-emitting surface of the light-incident surface-light-emitting surface and the light-incident surface-reflecting surface-light-emitting surface can be made to be wrong, that is, one side.
  • the light-emitting surface-light-emitting surface and the light-incident-reflecting surface-light-emitting surface may be the same as the lateral direction, or As shown in FIG. 18, the light-emitting surface of the "light-incident surface-light-emitting surface" and the "light-incident surface-reflecting surface-light-emitting surface” can be made to be laterally downward, that is, by adjusting the light-incident surface and the light-emitting surface. And the reflecting surface can adjust the angle of light according to the needs to meet different kinds of signals. Light distribution needs. In addition, the light distribution types are all ring-type signal lights. If a fan-shaped range of light distribution is required, a light blocking plate may be disposed inside/outside of the light-transmitting cover to cut off light to block unnecessary portions.
  • two LED light-emitting units are disposed at one end of the lamp body 5 corresponding to the top cover and one end of the corresponding base.
  • At least one partitioning member 6 is disposed in the lamp body 5, and the lamp body 5 is separated from at least two light distribution spaces, and an LED light emitting unit is disposed in each space, and the LED light emitting unit can be provided.
  • the partitioning member 5 can also be disposed at the two ends of the lamp body 5 corresponding to the top cover and the base, and the structure thereof can be changed according to actual needs to meet different lighting requirements.
  • the present patent application provides an LED signal lamp, comprising: a top cover, a base, and a lamp body disposed therebetween; the lamp body includes: a translucent cover having a smooth surface disposed on the outermost layer, The lamp body further includes at least one LED light source located in the transparent cover, and a light distribution component for distributing light to the LED light source, the light distribution component comprising: at least one collimating lens; LED signal lights can be used with a variety of light distribution design to achieve signal requirements, and energy saving and low cost.

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Abstract

一种LED信号灯（1），包括：顶盖（11）、底座（13）及设于两者之间的灯体（12）。灯体（12）包括：设于最外层的具有光滑表面的透光罩（121）。灯体还可包括位于透光罩（121）内的至少一LED光源（2232）、及用于对LED光源（2232）配光的配光组件，配光组件可包括：准直透镜（2233）。该信号灯可配合多种配光设计来实现信号灯要求，并且节能环保，成本低廉。

Description

LED信号灯 技术领域
本专利申请涉及LED照明技术领域，特别是涉及一种LED信号灯。
背景技术
现有的信号灯，例如船舶信号灯，一般采用卤素灯光源、环形螺纹玻璃(菲涅尔透镜)、挡光板等组成的光学结构。此类航行信号灯存在以下问题：1、卤素灯光源----光效低(整灯在60W以上才能满足国家标准)、抗震能力差，体积大；2、环形螺纹玻璃----易积水和积灰，使光效迅速降低，存在严重的安全隐患；3、挡光板----a、不同的航行信号灯需要不同的挡光板，增加了整灯的成本；b、由于挡光板的挡光作用，整灯的光效低；c、多余的能量以热量的形式散发，给散热也带来很大的困难。
因此，有必要提供一种新型的信号灯，来解决上述问题。
发明内容
鉴于以上所述现有技术的缺点，本专利申请的目的在于提供LED信号灯，提供了多种配光方案，解决现有技术中信号灯所存在的问题。
为实现上述目标及其他相关目标，本专利申请提供LED信号灯，包括：顶盖、底座及设于两者之间的灯体；所述灯体包括：设于最外层的具有光滑表面的透光罩，所述灯体还包括位于所述透光罩内的至少一LED光源、及用于对所述LED光源配光的配光组件，所述配光组件包括：至少一准直透镜。
可选的，所述准直透镜包括：罩设所述LED光源的入光面、至少具有设置成朝向所述透光罩出光的部分的出光面、以及将接收的光线朝出光面反射的反射面；所述LED光源射出的光线经过所述入光面和出光面的折射后的出射角度在沿着朝向透光罩传播的路径上扩大，所述LED光源射出的光线经过所述入光面的折射和反射面的反射后的出射角度在沿着向出光面传播的路径上缩小或不变。
可选的，所述准直透镜包括：透镜主体，为实体结构，包括：凸弧面形的出光面、与所述出光面相对的安装面、以及与所述出光面和安装面相接的至少两个相对的端面；供罩设于LED光源的第一凹部，从所述透镜主体的安装面内凹而形成，其内表面构成与所述出光面对应的入光面；所述入光面包括朝向所述透镜主体的相对两个端面设置的一对侧面及连接所述一对侧面的连接面；一对第二凹部，从所述透镜主体的两个端面内凹而形成，各所述第二凹 部朝向所述LED光源的表面构成反射面。
可选的，所述配光组件包括：所述准直透镜，固定罩设于所述LED光源外。
可选的，所述的LED信号灯，还包括：光源安装件，设于所述透光罩内，所述光源安装件具有至少一个用于设置LED光源的承载面。
可选的，所述承载面位于灯体中部朝向所述透光罩设置。
可选的，所述出光面设有截光部，所述截光部位于所述LED光源的至少一侧，用于将来自所述LED光源的光线向侧向折射。
可选的，所述截光部是由多个断面呈三角形的棱镜外凸地排列设置形成的。
可选的，所述光源安装件为柱形，其横截面为多边形，每条边对应于一个承载面。
可选的，所述的LED信号灯，还包括：透镜盖板，其罩盖于所述透镜并与所述光源安装件固定结合，所述透镜盖板具有露出所述透镜的孔部。
可选的，所述承载面的至少相对两侧分别设有第一卡合部，所述透镜盖板设有与所述第一卡合部一一卡合的第二卡合部以实现所述固定。
可选的，所述准直透镜向外延伸形成有凸部，所述凸部设有固定用途的穿孔；或者，所述准直透镜设有定位部，所述定位部与所述准直透镜的待安装位置对应结合。
可选的，所述灯体具有至少一个用于设置LED光源的承载面，所述承载面朝向所述顶盖或所述底座，设置在以下各处中的至少一处：所述灯体中部、所述灯体对应顶盖的一端以及所述灯体对应底座的一端。
可选的，所述准直透镜具有罩设所述LED光源的入光面、至少具有设置成朝向所述透光罩出光的部分的出光面、以及将所接收的光线朝出光面反射的反射面；所述LED光源射出的光线经过所述入光面的折射、反射面的反射以及出光面的折射，使LED光源向顶盖或底座射出光线至少有部分变化为向透光罩方向射出。
可选的，所述准直透镜包括：透镜主体，为实体结构，包括：安装面、与安装面相对的顶端面、以及连接所述安装面和顶端面的出光面；供罩设于LED光源的第一凹部，从所述透镜主体的安装面内凹而形成，其内表面构成与所述出光面对应的入光面；与顶端面相对的入光面有部分为尖端朝向顶端面的锥面并具有向光源凹陷的弧度；第二凹部，从所述透镜主体的顶端面内凹而形成，所述第二凹部朝向所述LED光源的表面构成反射面。
综上所述，本专利申请提供LED信号灯，包括：顶盖、底座及设于两者之间的灯体；所述灯体包括：设于最外层的具有光滑表面的透光罩，所述灯体还包括位于所述透光罩内的至少一LED光源、及用于对所述LED光源配光的配光组件，所述配光组件包括：至少一准直 透镜；本发明提供的LED信号灯可配合多种配光设计来实现信号灯要求，并且节能环保，成本低廉。
附图说明
图1显示为本专利申请一实施例中LED信号灯的结构示意图。
图2显示为本专利申请一实施例中LED信号灯的纵剖示意图。
图3显示为本专利申请一实施例中LED信号灯的部分组件的分解示意图。
图4显示为本专利申请一实施例中配光组件的外形结构示意图。
图5显示为图4中配光组件内部透视的结构示意图。
图6显示为图4的A-A向的剖面示意图。
图7显示为图4的B-B向的剖面示意图。
图8显示为以图6角度展示的光路示意图。
图9显示为以图7角度展示的光路示意图。
图10显示为图4中配光组件的配光曲线图。
图11显示为本专利申请一实施例中透镜上的截光部应用的光路示意图。
图12a显示为本专利申请一实施例中实现LED信号灯设计的一种LED发光单元组合的结构示意图。
图12b是图12a实施例下的配光曲线图。
图13a显示为本专利申请一实施例中实现LED信号灯设计的又一种LED发光单元组合的结构示意图。
图13b是图13a实施例下的配光曲线图。
图14a显示为本专利申请一实施例中实现LED信号灯设计的再一种LED发光单元组合的结构示意图。
图14b是图14a实施例下的配光曲线图。
图15显示为本专利申请另一实施例中配光组件的结构示意图。
图16至图18显示为图15的配光组件作用下的多种光路示意图。
图19至图21显示为采用图15的配光组件的多个实施例的结构示意图。
具体实施方式
本发明的核心思想在于，由于使用配光组件包括准直透镜，可以避免在透光罩上使用菲涅尔透镜的螺纹结构，从而使得透光罩表面光滑，进而避免了由于灰尘或腐蚀造成的光效损 失或潜在危险。此外，准直透镜的结构可以有着更灵活的配合方式，能够适应更多种型号灯的配光需求。
以下通过特定的具体实例说明本专利申请的实施方式，本领域技术人员可由本说明书所揭露的内容轻易地了解本专利申请的其他优点与功效。本专利申请还可以通过另外不同的具体实施方式加以实施或应用，本说明书中的各项细节也可以基于不同观点与应用，在没有背离本专利申请的精神下进行各种修饰或改变。需说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。
如图1所示，本发明提供的LED信号灯1，包括：顶盖11、底座13及设于两者之间的灯体12。
所述灯体12包括：设于最外层的具有光滑表面的透光罩121。在一实施例中，所述透光罩121可例如圆筒形，所述透光罩121可以是例如玻璃或PC等透明材质，它能使出光以94％以上的效率透射出去，并且由于其表面光滑不会有由积水和积灰引起的光衰问题。需要说明的是，此处的最外层指LED光线配光光路上在光学器件中的位置，并不代表透光罩需要在信号灯的最外层，透光罩的外侧还可能有非光学器件，比如挡板、固定装置、装饰物等。
所述灯体还可包括位于所述透光罩121内的至少一LED光源、及用于对所述LED光源配光的配光组件，所述LED光源例如为装载在基板的LED芯片；所述配光组件用于将LED半空间朗伯型发光通过反射和/或折射，转变为符合信号灯的发光标准的发光类型，例如，所述配光组件可包括：准直透镜。
以下关于所述LED信号灯使用不同结构的配光组件及LED光源来提供多个实施例，其中，实施例一和实施例二是采用透镜作为配光组件的方案；该些实施例中不矛盾的特征可以相互进行结合：
实施例一：
如图2及图3所示，LED信号灯2的灯体22包括：呈柱形的光源安装件222，设于所述透光罩221内，所述光源安装件222具有至少一个用于设置LED光源的承载面2221，具体的，所述承载面2221位于灯体22中部朝向所述透光罩221设置，在本实施例中，所述承载面2221即如图示的朝着横向设置，从而面对其周侧的透光罩221侧壁，使其承载的LED光源所射出光线能更便于从透光罩221出光。
具体的，各所述承载面2221中的至少一个设有LED发光单元223，所述LED发光单元223包括：设有LED光源2232(如光源芯片)的LED基板2231(可为铝基板)。在本实施例中，所述LED发光单元223还包括：至少一准直透镜2233，固定罩设于所述LED光源2232 外。
请参阅图2，优选的，所述光源安装件222中部穿透形成穿透部，可供穿设LED驱动电24源，优选的，所述穿透部和LED驱动电源24是形状匹配或者穿透部内壁设有定位LED驱动电源24的部件等(未图示)，从而定位穿入穿透部的LED驱动电源24在图示横向上的移动；再如图3或图12a所示，所述穿透部横截面为多边形，所谓多边形即具有三条边以上的形状，而每条边对应于一个承载面2221，根据具体的灯具照射角度等配光需求设置多边形的边数，在本实施例中，所述横截面为三角形，即具有三个承载面，当然在其他实施例中，并非以此为限，可以选择任意数目的承载面组成的多面柱体，优选的，为方便配光设计选择为对称的多边形，比如可为正多边形、菱形等，在本实施例中优选为正三角形，由于LED光源2232是设在光源安装件222侧向的承载面2221上，故按正多边形设置可以使各个方向的出光均匀；并且，如图2所示，所述顶盖21及底座23内可设有形状对应光源安装件222(亦可包括所述LED驱动电源24)的横截面形状相配合的凹部，从而与该凹部的结合即可定位该光源安装件222于顶盖21及底座23之间，同理，顶盖21和底座23优选也可设置形状配合所述透光罩221横截面的凹部，从而可以定位该透光罩221，例如透光罩221为圆筒形，则所述顶盖21及底座23设置形状对应的环形凹部以结合所述透光罩221的边壁。
如图3所示，所述的LED信号灯2还包括：透镜盖板224，其罩盖于所述准直透镜2233并与所述光源安装件222固定结合，所述透镜盖板224具有露出所述准直透镜2233的孔部(例如图示的方孔)；具体的，可参阅图12a，所述承载面2221的至少相对两侧分别设有第一卡合部22211，所述透镜盖板224设有与所述第一卡合部22211一一卡合的第二卡合部2241以实现所述固定，所述第一卡合部22211和第二卡合部2241可以是弯曲方向相反的弯折部而相对卡合，如图所示，所述第一卡合部22211为一对从承载面2221向上凸起且向相反方向(图中为向外)弯折所形成的结构，而所述第二卡合部2241为所述透镜盖板224两侧向同方向弯折但与所述第一卡合部22211的弯折方向相反的折边，使得所述透镜盖板224通过卡合即可固定于所述承载面2221。
在一实施例中，从图中可见，优选的，所述透镜盖板224横截面呈拱形，从而既不妨碍透镜2233的主要发光区域，又能限制透镜2233边缘的杂散光对主要发光区域的影响。
如图4及图5所示，以下介绍所采用的准直透镜2233的结构，所述准直透镜2233包括：罩设所述LED光源的入光面、至少具有设置成朝向所述透光罩出光的部分的出光面、以及将接收的光线朝出光面反射的反射面；所述LED光源射出的光线经过所述入光面和出光面的折射后的出射角度在沿着朝向透光罩传播的路径上扩大，所述LED光源射出的光线经过所述入 光面的折射和反射面的反射后的出射角度在沿着向出光面传播的路径上缩小或不变。这样，通过透镜的该些面的配合，将LED光源的发光曲线调整成符合信号灯标准的发光曲线，根据折射定律和反射定律对各个配合的面的弧度、曲率以及材质的折射率的调整，透镜的具体形状可以随之改变。本实施例中透镜的具体的形状如下：透镜主体及设于所述透镜主体的第一凹部22335和第二凹部22332。
所述透镜主体，为由凸弧面形的出光面22331、与所述出光面相对的安装面22330、以及与所述出光面22331和安装面22330相接的两个相对的端面围成的实体结构。在一实施例中，如图所示，所述透镜主体可以为例如纵切的部分圆柱体或椭圆柱体(例如半圆柱或半椭圆柱)等，而所述出光面22331即可为拱形弧面，之所以采用凸弧面形的出光面是为了LED光的扩散，可一并参考图7及图9，图7显示为图4在B-B方向的剖视图，图9例示性地展示在所述出光面22331作用下的出光路线；所述安装面22330为所述出光面的相对面，图示为底面，所述透镜主体是以所述安装面22330朝向LED光源2232来安装的。
再如图5所示，所述第一凹部22335是从所述透镜主体的安装面22330内凹而形成，供罩设于LED光源2232外，所述第一凹部22335的内表面构成与所述出光面对应的入光面，所述入光面包括朝向所述透镜主体的相对两个端面设置的一对侧面22335a及连接所述一对侧面的连接面22335b。在一实施例中，所述第一凹部22335的形状可以和该透镜主体相似，为纵剖的部分圆柱体或椭圆主体，所述一对侧面22335a分别与所述一对端面相对，用于两侧出光；而所述连接面22335b可以是弧形面，且优选的，从图5可知，所述连接面22335b为向所述LED光源2232凸出，从而将从连接面22335b透过的光线变为平行光。光源2232射出的光在经过透镜2233之后获得了在透镜2233径向的面上较大的照射角度而在透镜2233轴向上获得较窄的照射角度，类似扇面柱的出射光线。
所述第二凹部22332，从所述透镜主体的两个端面内凹而形成，可以是整个端面都内凹也可以是部分内凹，各所述第二凹部22332朝向所述LED光源2232的表面构成反射面22332a(优选为全反射面)，使得所述LED光源2232至少从所述一对侧面22335a的出光受该反射面22332a的反射而向所述出光面22331传送，优选的，所述一对第二凹部22332是形状对称地形成于所述两个端面的，使两个反射面22332a所作用的出光均衡；优选的，如图5所示，该一对第二凹部22332的内凹顶点是落在安装面22330上，可使所述形成的反射面22332a各部分均是朝向出光面的22331，而没有朝向安装面22330的。
该准直透镜2233的工作原理，参见图6和图7，为了表述方便，定义图7中垂直纸面的方向为纵向，图7的左右方向为横向，图6是与图7相互垂直的剖面图，那么图6中左右方 向为纵向，垂直于纸面的方向为横向。在图8中所展示光路图可见，LED光源2232发出的光线，一部分通过连接面22335b后形成平行光到达出光面22331，另一部分经过入光面的侧面22335a的折射和反射面22332a的反射后形成平行光达到出光面22331(理想的情况下平行光为绝对平行，但是实际生产或设计中并不一定绝对平行)，由于反射面22332a对LED光源2232横向出光的限制作用，光线在横向传播上的角度变小，另外一方面，如图9中所展示光路图可知，在纵向截面上，经过入光面和出光面22331的折射之后，纵向传播上角度变大(即向外扩散)。由此，原本的LED光源2232的半空间朗伯型发光通过该透镜的配光，在横向和纵向分别达到了配光目的，且光强变的更加均匀。
由于LED光源2232的出光从所述入光面，经过准直透镜2233的材料介质折射后有一部分(例如从入光面的连接面22335b的出光)直接到达出光面，另一部分(例如从入光面的侧面的出光)经过所述反射面22332a反射后到达出光面22331，而若所述第二凹部22332的内凹顶点不落在安装面22330上，则所述反射面22332a会有一部分是朝向安装面22330的，则会影响出光效率，当然，虽然其并非最优选的实施例，但其同样被涵盖在本专利申请的保护范围之内。
总结起来，所述LED光源2232射出的光线经过所述入光面和出光面22331的折射后的出射角度在沿着朝向透光罩221传播的路径上扩大，所述LED光源2232射出的光线经过所述入光面的折射和反射面22332a的反射后的出射角度在沿着向出光面22331传播的路径上缩小或不变；此准直透镜2233通过对光源2232横向和纵向的光线进行分别控制，最后能形成横向和纵向角度相差近倍的配光效果，而满足船舶航行信号灯的要求，并且其光学效率高达88％以上，请参见图10，展示的是通过该准直透镜配光的曲线图。
另外优选但非必须的是，如图4所示，所述出光面22331设有截光部22334，所述截光部22334位于所述LED光源2232的至少一侧(优选为如图所示的两侧)，优选的，所述截光部22334有至少一对，在所述出光面22331上分别位于所述LED光源2232相对两侧；具体的，所述截光部22334可以是由多个断面呈三角形的棱镜外凸地排列设置形成的，并请参阅图11，从中可见，所述截光部22334的每个棱镜将的来自所述LED光源2232的光线向侧向折射，从而避开中间主要发光区域，实现交通信号灯尤其是船舶航行信号灯的截光性要求。
请再参阅图4，在一实施例中，所述透镜主体外延伸形成有凸部22333，优选是从出光面22331和安装面22330的相接处凸出形成，所述凸部22333设有固定用途的穿孔22333a，以供结合例如铆钉、螺丝等固定件而固定于待安装位置；当然并非以此为限，例如所述透镜主体的安装面可以设置定位部，以供与待安装位置结合以获得定位，所述结合包括：凹凸配合、 卡扣结合等，例如，所述定位部为一或多个凸柱，而所述待安装位置设有数量一一对应的且形状匹配的凹部，两者结合以定位透镜主体。
再请参阅图12a至图14b，本实施例中的灯具结构通过不同数量LED发光单元223在承载面的各种安装方式的组合来对应实现不同种类的信号灯：
如图12a所示，仅在一侧承载面2221设置LED发光单元223或仅令一侧承载面2221的LED发光单元223发光，从而实现例如航船信号灯中单侧较小角度(60°～120°)发光需求的信号灯(如左/右舷灯等)的设计，图12b是对应的配光曲线图。
又例如图13a，在两侧承载面2221设置LED发光单元223或仅令两侧承载面2221的LED发光单元223发光，从而实现例如航船信号灯中单侧较小角度(120°～240°)发光需求的信号灯(例如桅灯、梶灯、拖带灯等)的设计，图13b是对应的配光曲线图。
再例如图14a，在三侧承载面2221均设置LED发光单元223或令三侧承载面2221的LED发光单元223均发光，从而实现大角度(240°～360°)例如航船信号灯中环照灯的设计；图14b是对应的配光曲线图。
需说明的是，所述LED光源及配光组件未必必须设置于光源安装件的侧面，在其他实施例中，光源安装件亦可省略，LED光源的设置位置可发生变化，而所采用的准直透镜的结构及设置位置随之变化。
实施例二：
本实施例与实施例一的区别在于：灯体具有至少一个用于设置LED光源的承载面，所述承载面朝向所述顶盖或所述底座，即，设置于承载面的LED光源朝顶盖或底座发光，所述LED光源可以设置在以下各处中的至少一处：所述灯体中部、所述灯体对应顶盖的一端以及所述灯体对应底座的一端等等，配光组件的设置位置及结构亦需相应变化，以使LED光源射出的光线可通过配光组件的作用而发生方向变化从而从透光罩射出。
具体的，请一并参阅图15至图21，在该些实施例中，如图15所示，准直透镜3具有罩设所述LED光源的入光面34、至少具有设置成朝向所述透光罩出光的部分的出光面32、以及将所接收的光线朝出光面32反射的反射面33；所述LED光源4射出的光线经过所述入光面34的折射、反射面33的反射以及出光面32的折射，使LED光源4向顶盖或底座射出光线至少有部分变化为向侧向的透光罩5方向射出。这样，通过透镜的该些面的配合，将LED光源的发光曲线调整成符合信号灯标准的发光曲线。同样的，根据折射定律和反射定律对各个配合的面的弧度、曲率以及材质的折射率的调整，透镜的具体形状可以随之改变。
关于所述准直透镜3的结构形成，所述准直透镜3包括：透镜主体，为实体结构，包括： 安装面30、与安装面30相对的顶端面31、以及连接所述安装面30和顶端面31的所述出光面32；供罩设于LED光源4的第一凹部35，从所述透镜主体的安装面30内凹而形成，其内表面构成与所述出光面对应的所述入光面34；与顶端面31相对的入光面34有部分为尖端朝向顶端面的锥面341并具有向LED光源4凹陷的弧度；第二凹部36，从所述透镜主体的顶端面31内凹而形成，所述第二凹部36朝向所述LED光源4的表面构成所述反射面33。
具体的，如图16至图18所示，提供了所述准直透镜3在不同设置角度或折射率的入光面、出光面与反射面设置角度的情况下，对LED光源4所发出光线作用而产生的传输路径的变化(其中角度或弧度以及折射率的变化，虽然图16～图18的未能图示出该些微小差异，但根据反射、折射等光学定律结合图示光路表示，本领域技术人员是可以理解该些变化的)，如图16所示，可使“入光面-出光面”与“入光面-反射面-出光面”的出光方向相错，即一个侧向向下，一个侧向向上；又或如图17所示，可使“入光面-出光面”与“入光面-反射面-出光面”的出光方向相同为侧向向上，又或如图18所示，可使“入光面-出光面”与“入光面-反射面-出光面”的出光方向相同为侧向向下，也就是说，通过调节入光面、出光面及反射面可以根据需求调整出光的角度，以满足不同种信号灯的配光需求。此外，该些配光类型均为环照式的信号灯，如需扇形范围的配光，还可在透光罩内/外设置挡光板进行截光，遮挡掉不需要的部分。
再如图19至图21所示，对应LED发光单元(包括LED光源4及准直透镜3)的数量及设置位置不同，提供了多个实施例：
在图19中，LED发光单元(包括LED光源4及准直透镜3)有两个，分设于所述灯体5对应顶盖的一端及对应底座的一端。
在图20及图21中，灯体5中设有至少一个分隔件6，将灯体5分隔出至少两个配光空间，每个空间内设置LED发光单元，所述LED发光单元既可以设于分隔件5也可以设于灯体5对应顶盖及底座的两端皆可，其结构可根据实际需求加以变化以满足不同的照明要求。
综上所述，本专利申请提供LED信号灯，包括：顶盖、底座及设于两者之间的灯体；所述灯体包括：设于最外层的具有光滑表面的透光罩，所述灯体还包括位于所述透光罩内的至少一LED光源、及用于对所述LED光源配光的配光组件，所述配光组件包括：至少一准直透镜；本发明提供的LED信号灯可配合多种配光设计来实现信号灯要求，并且节能环保，成本低廉。
上述实施例仅例示性说明本专利申请的原理及其功效，而非用于限制本专利申请。任何熟悉此技术的人士皆可在不违背本专利申请的精神及范畴下，对上述实施例进行修饰或改 变。因此，举凡所属技术领域中具有通常知识者在未脱离本专利申请所揭示的精神与技术思想下所完成的一切等效修饰或改变，仍应由本专利申请的权利要求所涵盖。

Claims (15)

  1. 一种LED信号灯，包括，顶盖、底座及设于两者之间的灯体；其特征在于，
    所述灯体包括，设于最外层的具有光滑表面的透光罩，所述灯体还包括位于所述透光罩内的至少一LED光源、及用于对所述LED光源配光的配光组件，所述配光组件包括：至少一准直透镜。
  2. 根据权利要求1所述的LED信号灯，其特征在于，所述准直透镜包括：罩设所述LED光源的入光面、至少具有设置成朝向所述透光罩出光的部分的出光面、以及将接收的光线朝出光面反射的反射面；所述LED光源射出的光线经过所述入光面和出光面的折射后的出射角度在沿着朝向透光罩传播的路径上扩大，所述LED光源射出的光线经过所述入光面的折射和反射面的反射后的出射角度在沿着向出光面传播的路径上缩小或不变。
  3. 根据权利要求2所述的LED信号灯，其特征在于，所述准直透镜包括：
    透镜主体，为实体结构，包括：凸弧面形的出光面、与所述出光面相对的安装面、以及与所述出光面和安装面相接的至少两个相对的端面；
    供罩设于LED光源的第一凹部，从所述透镜主体的安装面内凹而形成，其内表面构成与所述出光面对应的入光面；所述入光面包括朝向所述透镜主体的相对两个端面设置的一对侧面及连接所述一对侧面的连接面；一对第二凹部，从所述透镜主体的两个端面内凹而形成，各所述第二凹部朝向所述LED光源的表面构成反射面。
  4. 根据权利要求2所述的LED信号灯，其特征在于，所述准直透镜固定罩设于所述LED光源外。
  5. 根据权利要求2所述的LED信号灯，其特征在于，还包括：光源安装件，设于所述透光罩内，所述光源安装件具有至少一个用于设置LED光源的承载面。
  6. 根据权利要求5所述的LED信号灯，其特征在于，所述光源安装件为柱形，其横截面为多边形，每条边对应于一个承载面。
  7. 根据权利要求5所述的LED信号灯，其特征在于，还包括：透镜盖板，其罩盖于所述 透镜并与所述光源安装件固定结合，所述透镜盖板具有露出所述透镜的孔部。
  8. 根据权利要求7所述的LED信号灯，其特征在于，所述承载面的至少相对两侧分别设有第一卡合部，所述透镜盖板设有与所述第一卡合部一一卡合的第二卡合部以实现所述固定。
  9. 根据权利要求5所述的LED信号灯，其特征在于，所述承载面位于灯体中部朝向所述透光罩设置。
  10. 根据权利要求2所述的LED信号灯，其特征在于，所述出光面设有截光部，所述截光部位于所述LED光源的至少一侧，用于将来自所述LED光源的光线向侧向折射。
  11. 根据权利要求10所述的LED信号灯，其特征在于，所述截光部是由多个断面呈三角形的棱镜外凸地排列设置形成的。
  12. 根据权利要求2所述的LED信号灯，其特征在于，所述准直透镜向外延伸形成有凸部，所述凸部设有固定用途的穿孔；或者，所述准直透镜设有定位部，所述定位部与所述准直透镜的待安装位置对应结合。
  13. 根据权利要求1所述的LED信号灯，其特征在于，所述准直透镜具有罩设所述LED光源的入光面、至少具有设置成朝向所述透光罩出光的部分的出光面、以及将所接收的光线朝出光面反射的反射面；所述LED光源射出的光线经过所述入光面的折射、反射面的反射以及出光面的折射，使LED光源向顶盖或底座射出光线至少有部分变化为向透光罩方向射出。
  14. 根据权利要求13所述的LED信号灯，其特征在于，所述灯体具有至少一个用于设置LED光源的承载面，所述承载面朝向所述顶盖或所述底座，设置在以下各处中的至少一处：所述灯体中部、所述灯体对应顶盖的一端以及所述灯体对应底座的一端。
  15. 根据权利要求13所述的LED信号灯，其特征在于，所述准直透镜包括：
    透镜主体，为实体结构，包括：安装面、与安装面相对的顶端面、以及连接所述安装面和顶端面的出光面；
    供罩设于LED光源的第一凹部，从所述透镜主体的安装面内凹而形成，其内表面构成与所述出光面对应的入光面；与顶端面相对的入光面有部分为尖端朝向顶端面的锥面并具有向光源凹陷的弧度；
    第二凹部，从所述透镜主体的顶端面内凹而形成，所述第二凹部朝向所述LED光源的表面构成反射面。
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