WO2018145569A1 - 一种透镜、光源模组和照明装置 - Google Patents

一种透镜、光源模组和照明装置 Download PDF

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Publication number
WO2018145569A1
WO2018145569A1 PCT/CN2018/073857 CN2018073857W WO2018145569A1 WO 2018145569 A1 WO2018145569 A1 WO 2018145569A1 CN 2018073857 W CN2018073857 W CN 2018073857W WO 2018145569 A1 WO2018145569 A1 WO 2018145569A1
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WO
WIPO (PCT)
Prior art keywords
light
lens
light incident
light source
light emitting
Prior art date
Application number
PCT/CN2018/073857
Other languages
English (en)
French (fr)
Inventor
尹松
邓诗涛
李建国
陈明
姚斌斌
Original Assignee
苏州欧普照明有限公司
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.)
Filing date
Publication date
Priority claimed from CN201710067113.7A external-priority patent/CN107044598A/zh
Priority claimed from CN201720112637.9U external-priority patent/CN206682702U/zh
Application filed by 苏州欧普照明有限公司 filed Critical 苏州欧普照明有限公司
Publication of WO2018145569A1 publication Critical patent/WO2018145569A1/zh
Priority to US16/521,218 priority Critical patent/US10948159B2/en

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Classifications

    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
    • G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source
    • G02B19/0061—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a LED
    • 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
    • F21V13/04—Combinations of only two kinds of elements the elements being reflectors and refractors
    • 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
    • F21V5/08—Refractors for light sources producing an asymmetric light distribution
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
    • G02B19/0028—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed refractive and reflective surfaces, e.g. non-imaging catadioptric systems
    • 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
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/30—Elongate light sources, e.g. fluorescent tubes curved
    • F21Y2103/33—Elongate light sources, e.g. fluorescent tubes curved annular
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the invention belongs to the technical field of illumination, and in particular relates to a lens, a light source module and a lighting device.
  • the existing lens is limited by its own shape and material properties, so that the light emitted by the light source passes through the secondary light distribution of the lens, the light exit angle is small, and the uniformity is not good, and the large angle range light and high cannot be effectively formed. The effect of uniformity.
  • An object of the present invention is to solve the above problems and to provide a lens capable of achieving a wide angle range and uniformly emitting light.
  • the present invention provides a lens including a bottom surface, an inner surface, an outer surface, and a first receiving cavity for receiving the light emitting component, wherein the wall surface of the first receiving cavity is an inner surface of the lens, wherein ,
  • the lens is an axisymmetric structure
  • the inner surface includes a first light incident surface and two second light incident surfaces disposed opposite to each other and adjacent to the first light incident surface, wherein the first light incident surface is a curved surface or a plane, and the first surface
  • the second light incident surface is a curved surface protruding away from the first receiving cavity, and the first light incident surface and the second light incident surface enclose the first receiving cavity.
  • the bottom surface and the second light incident surface are adjacent to each other,
  • the outer surface includes two first reflecting surfaces located at an intermediate top region and intersecting each other, a first light emitting surface located on opposite sides of the two first reflecting surfaces and respectively intersecting adjacent first reflecting surfaces, and two a second light emitting surface adjacent to the first light emitting surface, wherein the two first reflecting surfaces form a V-shaped structure, and the second light emitting surface is a curved surface that protrudes away from the first receiving cavity.
  • the light incident on the first light incident surface is collimated by the first light incident surface, and then incident on the first reflective surface, and after being totally reflected by the first reflective surface, is emitted from the first light emitting surface.
  • the light incident on the second light incident surface is refracted to the second light exit surface and is refracted by the second light exit surface to be emitted.
  • the height of the ridge line intersecting the two first reflecting surfaces from the bottom surface is smaller than the height of the ridge line intersecting the first light emitting surface and the first reflecting surface from the bottom surface.
  • the first light incident surface is a wave curved surface or a curved surface protruding toward the first receiving cavity.
  • the second light emitting surface is a plane.
  • the lens has a body portion that is formed to be stretched in the longitudinal direction.
  • a connecting portion is protruded outwardly on both sides of the main body portion.
  • the lens is a linear or curved axisymmetric structure extending in a longitudinal direction and a direction perpendicular to the longitudinal direction, the central axis of which is orthogonal to the lateral and longitudinal directions, and the lens is at each point in the longitudinal direction.
  • the cross sections are the same.
  • the lens is a shaft rotationally symmetric structure.
  • the width of the lens is less than 35 mm.
  • a width of the first light incident surface is smaller than a distance between two opposite end points of the two first light emitting surfaces.
  • the height of the first receiving cavity is greater than one-half of the height of the lens.
  • the second light incident surface has a first end and a second end in a height direction
  • the second light emitting surface also has a first end and a second end in a height direction, and the second end is longer than the first end Closer to the bottom surface, the distance between the two first ends is less than the distance between the second ends.
  • the shape of the lens is a ring shape, an arc shape or a shaft rotational symmetry.
  • the present invention further provides a lens including a bottom surface, an inner surface, an outer surface, and a first receiving cavity for receiving the light emitting component, wherein the wall surface of the first receiving cavity is an inner surface of the lens.
  • the inner surface includes a first light incident surface and a pair of opposite second light incident surfaces, and the first light incident surface substantially connects the upper end edges of the pair of second light incident surfaces in a lateral direction.
  • the outer surface includes two first reflecting surfaces located at an intermediate top region and intersecting each other, a first light emitting surface located on opposite sides of the two first reflecting surfaces and respectively intersecting adjacent first reflecting surfaces, and two a second light-emitting surface adjacent to the first light-emitting surface,
  • the two first reflecting surfaces constitute a V-shaped structure, and the pair of the second light incident surface and the pair of the second light exiting surfaces constitute a hyperbolic structure.
  • the light incident on the first light incident surface is collimated by the first light incident surface, and then incident on the first reflective surface, and after being totally reflected by the first reflective surface, is emitted from the first light emitting surface.
  • the light incident on the second light incident surface is refracted to the second light exit surface and is refracted by the second light exit surface to be emitted.
  • the present invention further provides a light source module including a light emitting component and the lens, the light emitting component comprising a light source panel and a light emitting unit disposed on the light source panel, wherein the light emitting unit is received in the lens Within the first containment chamber.
  • the light source panel is disposed to be disposed below the bottom surface.
  • the light source panel has an elongated shape, and the light emitting units are arranged along a longitudinal direction of the light source panel.
  • the lens has a body portion that is formed to be stretched in the longitudinal direction.
  • a connecting portion is protruded outwardly on both sides of the main body portion.
  • the light source module further includes a mounting base disposed under the lens, and the lens is detachably assembled to the mounting base.
  • the mounting base has a mounting portion, and the connecting portion is detachably received in the mounting portion.
  • the present invention further provides a lighting device, comprising: a chassis, a mask connected to the chassis, and a light source module fixed on the chassis, the light source module comprising a light emitting component and the lens, the light emitting component
  • the light source panel and the light emitting unit disposed on the light source panel are housed in the first receiving cavity of the lens.
  • the chassis is rectangular
  • the lens is a straight strip type
  • two ends of the lens are located at a middle position of the lateral side wall of the chassis and extend in a direction of a longitudinal side wall of the chassis.
  • the width of the chassis is greater than 550 mm.
  • the ratio of the width of the lens to the width of the chassis is less than 0.06.
  • the lens of the present invention superimposes the emitted light by using a collimating plus total reflection structure and a hyperbolic structure to realize a larger angle distribution of the outgoing light, and meets the requirement of high uniformity, and at the same time, can pass a smaller number
  • the lens achieves a uniform illumination area of a larger volume of lamps, reducing costs.
  • FIG. 1 is a perspective view of a lighting device according to Embodiment 1 of the present invention.
  • Fig. 2 is a cross-sectional view taken along line A-A of Fig. 1.
  • FIG. 3 is a perspective view of the chassis and the light source module according to Embodiment 1 of the present invention.
  • Embodiment 4 is an exploded view of a light source module according to Embodiment 1 of the present invention.
  • FIG. 5 is a schematic cross-sectional view of the light source module based on FIG. 4 after assembly.
  • FIG. 6 is an exploded view of another light source module according to Embodiment 1 of the present invention.
  • FIG. 7 is a schematic cross-sectional view of the light source module based on FIG. 6 after assembly.
  • FIG. 8 is a cross-sectional view showing a combination of a lens and a light-emitting component in a light source module according to Embodiment 1 of the present invention.
  • Fig. 9 is another partial optical path diagram based on Fig. 8.
  • Figure 10 is a cross-sectional view showing a lens according to Embodiment 2 of the present invention.
  • Figure 11 is a cross-sectional view showing a lens according to Embodiment 3 of the present invention.
  • Figure 12 is a perspective view of a lens according to Embodiment 4 of the present invention.
  • Figure 13 is a cross-sectional view of Figure 12 .
  • Figure 14 is a perspective view of a lens according to Embodiment 5 of the present invention.
  • Figure 15 is a perspective view of another lens according to Embodiment 5 of the present invention.
  • Figure 16 is a perspective view of a lens according to Embodiment 6 of the present invention.
  • FIG. 1 to 3 show a lighting device 100 of the present invention, comprising a chassis 20, a mask 30 coupled to the chassis 20, and a light source module 10 secured to the chassis 20.
  • the cover 30 and the chassis 20 are connected to form a second receiving cavity 40, and the light source module 10 is received in the second receiving cavity 40.
  • the light source module 10 of the embodiment of the invention can be separately applied to a lamp such as a ceiling lamp or an advertising light box.
  • connection relationship between the respective elements and elements in the illumination device 100 provided in the first embodiment of the present invention will be specifically described below.
  • the chassis 20 has a substantially rectangular parallelepiped shape, and has a flat bottom plate 21 and side walls 22 extending vertically from the periphery of the bottom plate 21.
  • the width of the chassis 20 is greater than 550 mm, and it may be made of a metal material, a plastic, a heat conductive plastic or the like.
  • the chassis 20 can be mounted on a mounting base such as a ceiling.
  • the mask 30 is placed on one side of the chassis 20 with an outer surface having a certain curvature. In other alternative embodiments, the outer surface of the mask 30 may also be planar.
  • the mask 30 is made of a light transmissive material, such as acrylic, which has a uniform light effect.
  • the connection of the mask 30 and the chassis 20 can be performed by means of plugging, snapping, screwing or the like. In other alternative embodiments, the mask 30 may not be included within the illumination device 100.
  • the light source module 10 includes a lens 1 and a light-emitting assembly 2 housed in the lens 1 .
  • the light source modules 10 are disposed in a group, and both ends thereof are located at a middle position of the lateral side walls of the chassis 20, and extend along the longitudinal direction of the side wall of the chassis 20, and the length of the light source module 10 is equal to the longitudinal length of the chassis 20.
  • the length of the light source module 10 may also be other lengths of 1/2, 2/3, etc. of the chassis 20.
  • the lens 1 is linear and integrally stretched, and the lens 1 has a main body portion 14 that is stretched in the longitudinal direction, and the width of the main body portion 14 is less than 32 mm.
  • a plurality of first connecting portions 15 are formed to protrude outward in the longitudinal direction on both sides of the lowermost end of the main body portion 14 of the lens 1.
  • the first connecting portion 15 is provided with a through hole (not shown) through which the screw passes.
  • a plurality of straight-type lenses 1 are mounted, and a plurality of lenses 1 abut against each other.
  • the light-emitting component 2 is first positioned on the bottom plate 21, and the lens 1 is sequentially snapped over the light-emitting component 2, and then a through hole (not labeled) of the first connecting portion 15 is screwed (not shown).
  • the lens 1 is fixed to the chassis 20. In other embodiments, only one straight type lens 1 can be mounted.
  • the light source module 10' includes a mounting base 3', a lens 1' mounted above the mounting base 3', and a light-emitting assembly 2' housed in the lens 1'.
  • the mounting base 3' has an elongated shape, and its bottom surface is fitted to the chassis 20.
  • the mounting base 3' is made of an aluminum profile or made of other materials having good heat dissipation properties.
  • the mounting base 3' has a rectangular flat base portion 31' and a pair of mounting portions 32' for mounting the lens 1' formed by bending both sides of the long side of the base portion 31' in the direction of the lens 1', and A second connecting portion 33' located outside the mounting portion 32'.
  • the mounting portions 32' extend toward each other and partially overlap the base portion 31', and the base portion 31' and the mounting portion 32' form a mounting region 321' for the lens 1' to be snap-fastened.
  • the second connecting portion 33' is provided with a through hole 331' through which a screw (not shown) passes.
  • the lens 1' is linear and integrally stretched, and the lens 1' has a main body portion 14' which is stretched in the longitudinal direction, and the width of the main body portion 14' is less than 32 mm.
  • An elongated second connecting portion 15' is formed to protrude outward in the longitudinal direction on both sides of the lowermost end of the main body portion 14' of the lens 1'.
  • a plurality of straight-type lenses 1' are attached, and a plurality of lenses 1' abut against each other.
  • the lens 1' is sequentially snapped over the light-emitting assembly 2', and the connecting portion 15' of the lens 1' is mounted in the mounting area 321', and then the second connection is passed through a screw (not shown).
  • the through hole 331' of the portion 33' fixes the lens 1' to the chassis 20.
  • only one straight type lens 1' may be mounted.
  • the main body portions 14, 14' of the lenses 1, 1' are all axisymmetric structures extending in the longitudinal direction, and the main body portions 14, 14' of the lenses 1, 1' have the same cross section in the longitudinal direction.
  • the main body portion 14 of the lens 1 will be specifically described by taking the lens 1 of the present embodiment as an example.
  • the main body portion 14 of the lens 1 has an inner surface 11 , an outer surface 12 , a bottom surface 13 , and a first receiving cavity 110 .
  • the wall surface of the first receiving cavity 110 is the inner surface 11 of the lens 1 .
  • the height of the first receiving cavity 110 is greater than one-half of the height of the lens 1.
  • the cross section of the inner surface 11 includes a first light incident surface 111 and two second light incident surfaces 112 disposed opposite to each other and adjacent to the first light incident surface 111.
  • the first light incident surface 111 is a wave-shaped curved surface
  • the second light incident surface 112 is a curved surface that protrudes away from the first receiving cavity 110.
  • the outer surface 12 includes a first reflecting surface 121 located at an intermediate top region and intersecting each other, a first light emitting surface 122 located on both sides of the two first reflecting surfaces 121 and respectively intersecting the adjacent first reflecting surface 121, and two
  • the second light-emitting surface 123 adjacent to the first light-emitting surface 122 has a V-shaped structure.
  • the first reflecting surface 121 may be a curved surface or a flat surface.
  • the first light exit surface 122 is a flat surface and may be completely perpendicular to the bottom surface 13 or may have a certain slope.
  • the second light-emitting surface 123 is a curved surface that protrudes away from the first receiving cavity 110.
  • the height of the ridge line intersecting the two first reflecting surfaces 121 from the bottom surface 13 is smaller than the height of the ridge line intersecting the first light emitting surface 122 and the first reflecting surface 121 from the bottom surface 13.
  • the width of the first light incident surface 111 is smaller than the distance between the two edge lines opposite to the two first light exit surfaces 111.
  • the second light incident surface 112 has a first end and a second end in the height direction.
  • the first light emitting surface 122 also has a first end and a second end in the height direction, and the second light incident surface 112 and the first light emitting surface 122.
  • the second end is closer to the bottom surface than the first end, and the distance between the two first ends is smaller than the distance between the second ends, that is, the lens 1 is opposite to the first light incident surface 111 and the second light exit surface 123.
  • the thickness of the body portion is gradually thicker from the top to the bottom.
  • the light-emitting assembly 2 includes an elongated integrated light source panel 21 and a plurality of light-emitting units 22 arranged in the longitudinal direction on the light source panel 21.
  • the light source panel 21 is an integrated type
  • the light emitting unit 22 is an LED light source.
  • the light source panel 21 may also be segmented, and the light emitting unit 22 may also be a TL light source or other light source.
  • the drive power component (not shown) may be provided separately from the light-emitting component 2 or may be integrally provided.
  • the light source panel 21 is attached to the bottom surface 13 of the lens 1, and the light emitting unit 22 is housed in the first housing cavity 110.
  • the lens 1 comprises a two-part optical path system, and the first part is composed of a collimating and total reflection system, in particular, the light incident on the first light-incident surface 111 passes through the first light-incident surface 111. After being refracted, it is collimated, and then incident on the first reflecting surface 121, after being totally reflected by the first reflecting surface 121, is emitted by the first light emitting surface 122, thereby deflecting the energy of the central light intensity direction and the vicinity of the light emitting unit 22
  • the second portion is a hyperbolic structure, that is, a structure composed of two curved surfaces of the second light incident surface 112 and the second light exit surface 123.
  • the light incident on the second light incident surface 112 is refracted to
  • the second light-emitting surface 123 is refracted by the second light-emitting surface 123 and then emitted, and the energy of the light-emitting unit 22 away from the central light intensity direction is evenly distributed to the entire target space.
  • the light emitted by the light-emitting unit 22 is superimposed by the energy of the two optical path systems of the first portion and the second portion to achieve a large-angle light intensity distribution.
  • the lens in the illuminating device is superimposed with the collimated and full-emission structure and the hyperboloid structure, so that the illuminating device emits a large angle of light coverage, and the optical path segmentation is utilized.
  • the design makes the energy of different stages hit the target position separately, and achieves the effect of increasing the uniformity of light output by superposition.
  • the lens 1 having a width of less than 32 mm can uniformly illuminate the illumination device 100 having a width greater than 550 mm, that is, under the condition that the width ratio of the lens 1 to the chassis 20 is less than 0.06, the light-emitting angle of the lens 1 is sufficient for the entire illumination device. 100 uniform light output, through a smaller number of lenses, to achieve a uniform illumination area of a larger volume of lamps, reducing costs.
  • Embodiment 2 of the present invention provides a lens 1a applied to the illumination device 100 according to Embodiment 1 of the present invention.
  • the lens 1a is also linear, and its cross-sectional structure and Embodiment 1
  • the structure of the lens 1 is similar.
  • the lens 1a has an inner surface 11a, an outer surface 12a, a bottom surface 13a, and a first housing chamber 110a for accommodating a light-emitting unit (not shown).
  • the wall surface of the first housing chamber 110a is an inner surface 11a of the lens 1a.
  • the lens 1a is different from the lens 1 in the first embodiment only in that the first light incident surface 111a of the lens 1a is a curved surface that is convex toward the first housing cavity 110a.
  • Embodiment 3 of the present invention provides a lens 1b applied to the illumination device 100 according to Embodiment 1 of the present invention.
  • the lens 1b is also linear, and its cross-sectional structure and Embodiment 1
  • the structure of the lens 1 is similar.
  • the lens 1b has an inner surface 11b, an outer surface 12b, a bottom surface 13b, and a first housing chamber 110b for accommodating a light-emitting unit (not shown).
  • the wall surface of the first housing chamber 110b is an inner surface 11b of the lens 1b.
  • the lens 1b is different from the lens 1 in the first embodiment only in that the first light incident surface 111b of the lens 1b is a flat surface.
  • a lens 1c that can be applied to the illumination device 100 provided in Embodiment 1 of the present invention is provided in Embodiment 4 of the present invention.
  • the lens 1c has a circular cover shape and is The central axis has a rotationally symmetrical structure.
  • the lens 1c has a first housing chamber 110c for housing a light-emitting unit (not shown), and a wall surface of the first housing chamber 110c is an inner surface 11c of the lens 1c.
  • the shape of the inner surface 11c thereof may be any one of the above-described embodiments 1 to 3.
  • a circular lens 1d which can be applied to the illumination device 100 provided in Embodiment 1 of the present invention is provided in Embodiment 5 of the present invention, and the present invention is implemented as shown in FIG.
  • a fifth embodiment of the present invention provides a semicircular lens 1e that can be applied to the illumination device 100 provided in the first embodiment of the present invention.
  • Each of the lenses 1d and 1e has a first housing chamber (not shown) for housing a light-emitting unit (not shown), and the wall surfaces thereof are the inner surfaces (not shown) of the lenses 1d and 1e, respectively.
  • the shape of the inner surface thereof may be any one of the above-described embodiments 1 to 3.
  • a lens 1f which can be applied to the illumination device 100 provided in Embodiment 1 of the present invention is provided in a curved shape.
  • the lens 1f has a first housing chamber (not shown) for housing a light-emitting assembly (not shown), and its wall surface is the inner surface 110f of the lens 1f.
  • the shape of the inner surface thereof may be any one of the above-described embodiments 1 to 3.
  • the collimated light is superimposed by the collimating and total reflection structure and the hyperboloid structure, so that the light illuminating angle of the illuminating device is large, and the optical path segmentation design is used to make different
  • the phase energy is respectively hit at the target position, and the effect of increasing the uniformity of light emission is achieved by superposition.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

一种透镜(1,1',1a,1b,1c,1d,1e,1f)、光源模组(10,10')和照明装置(100)。透镜(1,1',1a,1b,1c, 1d,1e,1f)包括底表面(13,13a,13b)、内表面(11,11a,11b,11c,110f)、外表面(12,12a,12b)、及用于收容发光组件(2,2')的第一收容腔(110,110a,110b,110c)，其中，内表面(11,11a,11b,11c,110f)包括一个第一入光面(111,111a,111b)及两个相对设置的第二入光面(112)，第一入光面(111,111a,111b)为曲面或平面，底表面(13,13a,13b)与第二入光面(112)为相邻面，外表面(12,12a,12b)包括两个构成V形结构的第一反射面(121)、位于第一反射面(121)两侧的第一出光面(122)、及与第一出光面(122)相邻的第二出光面(123)，入射在第一入光面(111,111a,111b)上的光线经折射后被准直，第二入光面(112)和第二出光面(123)构成双曲面结构。透镜(1,1',1a,1b,1c,1d,1e,1f)利用准直加全反射结构和双曲面结构对出射光线进行叠加，来实现出射光线更大角度的分布，并且满足高均匀度的要求，同时，可以通过更少数量的透镜(1,1',1a,1b,1c,1d,1e,1f)，实现更大体积的灯具的均匀照射面积，降低了成本。

Description

一种透镜、光源模组和照明装置 技术领域
本发明属于照明技术领域，特别涉及一种透镜、光源模组和照明装置。
背景技术
在电视背光、吸顶灯及广告灯箱等显示或照明领域已经普遍应用的透镜，需要兼具大角度出光及均匀出光的双重特性。然而，现有的透镜受其本身形状及材料属性的限制，使得光源发出的光线经过透镜的二次配光后，出光角度较小，且均匀度不佳，不能有效形成大角度范围出光及高均匀度的效果。
发明内容
本发明的目的是为了解决上述问题，提供一种能够实现大角度范围且均匀出光的透镜。
为实现上述目的，本发明提供了一种透镜，包括底表面、内表面、外表面、及用于收容发光组件的第一收容腔，所述第一收容腔的壁面为透镜的内表面，其中，
所述透镜为轴对称结构，
所述内表面包括一个第一入光面及两个相对设置且为所述第一入光面相邻面的第二入光面，所述第一入光面为曲面或平面，所述第二入光面为沿远离第一收容腔方向凸出的曲面，所述第一入光面和所述第二入光面围成所述第一收容腔，
所述底表面与所述第二入光面为相邻面，
所述外表面包括两个位于中间顶部区域并彼此相交的第一反射面、位于所述两个第一反射面两侧并分别与相邻第一反射面相交的第一出光面、及两个与所述第一出光面相邻的第二出光面，两个所述第一反射面构成V形结构，所述第二出光面为沿远离第一收容腔方向凸出的曲面。
进一步的，入射在第一入光面上的光线经过第一入光面的折射后 被准直，然后入射在第一反射面，经第一反射面全反射后，由第一出光面出射，入射在第二入光面的光线折射到第二出光面并被该第二出光面折射后出射。
进一步的，所述两个第一反射面相交的棱线距离底表面的高度小于第一出光面和第一反射面相交的棱线距离底表面的高度。
进一步的，所述第一入光面为波浪型曲面或向第一收容腔方向凸出的曲面。
进一步的，所述第二出光面为平面。
进一步的，所述透镜具有沿纵长方向拉伸形成的主体部。
进一步的，在所述主体部的两侧向外凸出设置有连接部。
进一步的，所述透镜为直线型或曲线型的轴对称结构，其延伸方向为纵向、与纵向垂直的方向为横向，其中心轴与该横向和纵向正交，透镜在该纵向上每一点的横截面均相同。
进一步的，所述透镜为轴旋转对称结构。
进一步的，所述透镜的宽度小于35mm。
进一步的，所述第一入光面的宽度小于两个所述第一出光面相对的两个端点之间的距离。
进一步的，所述第一收容腔的高度大于所述透镜的高度的二分之一。
进一步的，所述第二入光面具有沿高度方向的第一端和第二端，第二出光面也具有沿高度方向的第一端和第二端，所述第二端比第一端更接近底表面，所述两个第一端之间的距离小于第二端之间的距离。
进一步的，所述透镜的形状为环形、弧形或轴旋转对称形。
为实现上述目的，本发明还提供了一种透镜，包括底表面、内表面、外表面、及用于收容发光组件的第一收容腔，所述第一收容腔的壁面为透镜的内表面，
所述内表面包括一个第一入光面及一对相对设置的第二入光面，所述第一入光面大致沿横向连接一对第二入光面的上端缘，
所述外表面包括两个位于中间顶部区域并彼此相交的第一反射面、位于所述两个第一反射面两侧并分别与相邻第一反射面相交的第一出光面、及两个与所述第一出光面相邻的第二出光面，
两个所述第一反射面构成V形结构，一对所述第二入光面和一对 所述第二出光面构成双曲面结构。
进一步的，入射在第一入光面上的光线经过第一入光面的折射后被准直，然后入射在第一反射面，经第一反射面全反射后，由第一出光面出射，入射在第二入光面的光线折射到第二出光面并被该第二出光面折射后出射。
为实现上述目的，本发明还提供了一种光源模组，其包括发光组件及上述透镜，所述发光组件包括光源板及设置在光源板上的发光单元，所述发光单元收容在所述透镜的第一收容腔内。
进一步的，所述光源板贴合设置在所述底表面的下方。
进一步的，所述光源板为长条形，所述发光单元沿所述光源板的纵长方向排布。
进一步的，所述透镜具有沿纵长方向拉伸形成的主体部。
进一步的，在所述主体部的两侧向外凸出设置有连接部。
进一步的，所述光源模组还包括设置在所述透镜下方的安装基座，所述透镜可抽取式地组装于所述安装基座。
进一步的，所述安装基座具有安装部，所述连接部可抽取式地收容于所述安装部内。
为实现上述目的，本发明还提供了一种照明装置，其包括底盘、与底盘连接的面罩、固定在底盘上的光源模组，所述光源模组包括发光组件及上述透镜，所述发光组件包括光源板及设置在光源板上的发光单元，所述发光单元收容在所述透镜的第一收容腔内。
进一步的，所述底盘为长方形，所述透镜为直条型，所述透镜的两端位于所述底盘横向侧壁的中部位置处，并沿所述底盘纵向侧壁的方向延伸。
进一步的，所述底盘的宽度大于550mm。
进一步的，所述透镜的宽度与所述底盘的宽度之比小于0.06。
有益效果：本发明的透镜，利用准直加全反射结构和双曲面结构对出射光线进行叠加，来实现出射光线更大角度的分布，并且满足高均匀度的要求，同时，可以通过更少数量的透镜，实现更大体积的灯具的均匀照射面积，降低了成本。
附图说明
此处所说明的附图用来提供对本发明的进一步理解，构成本发明的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1为本发明实施例1提供的一种照明装置的立体视图。
图2为沿图1的A-A线的剖视图。
图3为本发明实施例1提供的底盘和光源模组组装后的立体视图。
图4为本发明实施例1提供的一种光源模组的分解图。
图5为基于图4的光源模组的组装后的横截面示意图。
图6为本发明实施例1提供的另一种光源模组的分解图。
图7为基于图6的光源模组的组装后的横截面示意图。
图8为本发明实施例1提供的光源模组内的透镜及发光组件组合的横截面示意图。
图9为基于图8的另一部分光路图。
图10为本发明实施例2提供的一种透镜的横截面图。
图11为本发明实施例3提供的一种透镜的横截面图。
图12为本发明实施例4提供的一种透镜的立体视图。
图13为图12的剖面图。
图14为本发明实施例5提供的一种透镜的立体视图。
图15为本发明实施例5提供的另一种透镜的立体视图。
图16为本发明实施例6提供的一种透镜的立体视图。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚，下面将结合本发明具体实施例及相应的附图对本发明技术方案进行清楚、完整地描述。显然，所描述的实施例仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
实施例1
图1至图3显示了本发明的一种照明装置100，包括底盘20、与底盘20连接的面罩30、及固定在底盘20上的光源模组10。其中，面罩30和底盘20连接后形成一个第二收容腔40，光源模组10收容在第二收容腔40内。本发明实施例的光源模组10可单独应用于吸顶灯或 广告灯箱等灯具内。
以下针对本发明实施例1提供的照明装置100内的各个元件及元件之间的连接关系作具体说明。
如图1至图3所示，底盘20大致呈长方体状，具有平板状底板21及自底板21四周垂直延伸形成的侧壁22。底盘20的宽度大于550mm，其可采用金属材料、塑料、导热塑料等。底盘20可安装在天花板等安装基础上。
面罩30罩在底盘20的一侧，其外表面具有一定的弧度，在其它可替换的实施方式中，面罩30的外表面也可以为平面。面罩30采用透光的材料制成，如亚克力等，其具有匀光的作用。面罩30与底盘20的连接可采用插接、卡接、螺丝连接等方式。在其它可替换的实施方式中，照明装置100内也可以不包括面罩30。
如图4至图5所示，在本实施例中，光源模组10包括透镜1及收容在透镜1内的发光组件2。光源模组10设置为一组，且其两端位于底盘20横向侧壁的中部位置处，并沿底盘20侧壁的纵向方向延伸，光源模组10的长度等于底盘20的纵向长度。在其它可替换的实施方式中，光源模组10的长度还可以为底盘20的1/2、2/3等其它长度。
透镜1呈直线型，一体拉伸而成，透镜1具有沿纵长方向拉伸形成的主体部14，主体部14的宽度小于32mm。在透镜1的主体部14最下端两侧沿纵长方向向外凸出设置有若干个第一连接部15，第一连接部15上设有用于螺钉穿过的通孔(未标示)。在本实施方式中，安装有若干个直条型的透镜1，若干个透镜1首尾抵接。安装时，先将发光组件2定位在底板21上，将透镜1顺序卡接在发光组件2的上方，再用螺钉(未图示)穿过第一连接部15的通孔(未标示)将透镜1固定在底盘20上。其它实施方式中，可只安装有一个直条型的透镜1。
在其它可替换的实施例中，还可以采用另外一种光源模组10’。如图6和图7所示，光源模组10’包括安装基座3’、安装在安装基座3’上方的透镜1’、及收容在透镜1’内的发光组件2’。
安装基座3’呈长条形，其底面贴合在底盘20上，在本实施例中，安装基座3’为铝型材，或由其它散热性好的材料制成。安装基座3’具有呈长方形的平板状基部31’及自基部31’的长边的两侧向透镜1’方向弯折延伸形成的用于安装透镜1’的一对安装部32’、及位于安装部32’ 外侧的第二连接部33’。安装部32’向彼此延伸并与基部31’部分重叠，基部31’和安装部32’形成用于透镜1’卡接固定的安装区域321’。第二连接部33’上设有用于螺钉(未图示)穿过的通孔331’。
透镜1’呈直线型，一体拉伸而成，透镜1’具有沿纵长方向拉伸形成的主体部14’，主体部14’的宽度小于32mm。在透镜1’的主体部14’最下端两侧沿纵长方向向外凸出设置有长条形的第二连接部15’。在本实施方式中，安装有若干个直条型的透镜1’，若干个透镜1’首尾抵接。安装时，先将透镜1’顺序卡接在发光组件2’的上方，再将透镜1’的连接部15’安装于安装区域321’内，再用螺钉(未图示)穿过第二连接部33’的通孔331’将透镜1’固定在底盘20上。其它实施方式中，可只安装有一个直条型的透镜1’。
透镜1、1’的主体部14、14’均为轴对称结构，其延伸方向为纵向，透镜1、1’的主体部14、14’在纵向上的横截面均相同。以本实施例的透镜1为例，对透镜1的主体部14作具体说明。
如图8所示，透镜1的主体部14具有内表面11、外表面12、底表面13、及第一收容腔110，该第一收容腔110的壁面为透镜1的内表面11。第一收容腔110的高度大于透镜1的高度的二分之一。
内表面11的横截面包括第一入光面111及两个相对设置且为第一入光面111相邻面的第二入光面112。在本实施方式中，第一入光面111为波浪型的曲面，第二入光面112为沿远离第一收容腔110方向凸出的曲面。
外表面12包括位于中间顶部区域并彼此相交的第一反射面121、位于两个第一反射面121两侧并分别与相邻第一反射面121相交的第一出光面122、及两个与第一出光面122相邻的第二出光面123，两个第一反射面121呈V形结构。第一反射面121可为曲面，也可以为平面。第一出光面122为平面，可以完全垂直于底表面13，也可以具有一定的斜度。第二出光面123为沿远离第一收容腔110方向凸出的曲面。两个第一反射面121相交的棱线距离底表面13的高度小于第一出光面122和第一反射面121相交的棱线距离底表面13的高度。
本实施例中的透镜1，其第一入光面111的宽度小于两个第一出光面111相对的两条边缘线之间的距离。第二入光面112具有沿高度方向的第一端和第二端，第一出光面122也具有沿高度方向的第一端和 第二端，第二入光面112和第一出光面122的第二端均比第一端更接近底表面，且两个第一端之间的距离小于第二端之间的距离，即透镜1在第一入光面111和第二出光面123相对的那个主体部分的厚度由顶部至底部是逐渐变厚的。
发光组件2包括长条形一体的光源板21和沿纵长方向排布于光源板21的若干发光单元22。在本实施方式中，光源板21为一体式的，发光单元22为LED光源。在其它实施方式中，光源板21也可以是分段式的，发光单元22也可以是TL光源或其它光源。驱动电源组件(未图示)可与发光组件2分体设置，或是一体式设置。光源板21与透镜1的底表面13贴合，发光单元22收容在第一收容腔110内。
如图8和图9所示，透镜1包括两部分光路系统，第一部分由准直加全反射系统组成，具体为，入射在第一入光面111上的光线经第一入光面111的折射后被准直，然后入射在第一反射面121，经第一反射面121全反射后，由第一出光面122出射，以此将发光单元22的中心光强方向及附近的能量偏折到大角度方向；第二部分为双曲面结构，即由第二入光面112与第二出光面123这两个曲面构成的结构，具体为，入射在第二入光面112的光线折射到第二出光面123并被该第二出光面123折射后出射，将发光单元22远离中心光强方向的能量均匀分布到整个目标空间。由发光单元22发出的光线，通过第一部分和第二部分两个光路系统的能量叠加，达到大角度的光强分布。
本发明实施例的照明装置100，其内的透镜，利用准直加全发射的结构和双曲面结构对出射光线进行叠加，使得照明装置出射的光线覆盖角度大，且利用这种光路分段式的设计，使得不同阶段能量分别打在目标位置，通过叠加从而达到增大出光均匀度的效果。宽度不足32mm的透镜1，就能使宽度大于550mm的照明装置100均匀出光，也就是说，在透镜1与底盘20的宽度比小于0.06的条件下，透镜1的出光角度都足使整个照明装置100均匀出光，通过更少数量的透镜，实现更大体积的灯具的均匀照射面积，降低了成本。
实施例2
参见图10所示，本发明实施例2提供一种应用于本发明实施例1提供的照明装置100内的一种透镜1a，该透镜1a也呈直线型，其横截 面的结构与实施例1的透镜1的结构类似。该透镜1a具有内表面11a、外表面12a、底表面13a、及用于收容发光单元(未图示)的第一收容腔110a，该第一收容腔110a的壁面为透镜1a的内表面11a。
透镜1a与实施例1中的透镜1的区别之处仅在于，透镜1a的第一入光面111a为向第一收容腔110a方向凸出的曲面。
实施例3
参见图11所示，本发明实施例3提供一种应用于本发明实施例1提供的照明装置100内的一种透镜1b，该透镜1b也呈直线型，其横截面的结构与实施例1的透镜1的结构类似。该透镜1b具有内表面11b、外表面12b、底表面13b、及用于收容发光单元(未图示)的第一收容腔110b，该第一收容腔110b的壁面为透镜1b的内表面11b。
透镜1b与实施例1中的透镜1的区别之处仅在于，透镜1b的第一入光面111b为平面。
实施例4
参见图12和图13所示，本发明实施例4提供的一种可应用于本发明实施例1提供的照明装置100内的一种透镜1c，该透镜1c呈圆形罩状，且其根据中心轴呈轴旋转对称结构。该透镜1c具有用于收容发光组件(未图示)的第一收容腔110c，该第一收容腔110c的壁面为透镜1c的内表面11c。
其内表面11c的形状可以为上述实施例1至3中任意一种形状。
实施例5
参见图14所示，本发明实施例5提供的一种可应用于本发明实施例1提供的照明装置100内的一种呈圆环形的透镜1d，及参见图15所示，本发明实施例5提供的一种可应用于本发明实施例1提供的照明装置100内的一种呈半圆环形的透镜1e。该透镜1d、1e均具有用于收容发光组件(未图示)的第一收容腔(未标示)，其壁面分别为透镜1d、1e的内表面(未标示)。
其内表面的形状可以为上述实施例1至3中任意一种形状。
实施例6
参见图16所示，本发明实施例6提供的一种可应用于本发明实施例1提供的照明装置100内的一种透镜1f，呈曲线形。该透镜1f具有用于收容发光组件(未图示)的第一收容腔(未标示)，其壁面为透镜1f的内表面110f。
其内表面的形状可以为上述实施例1至3中任意一种形状。
上述6个实施例中的透镜，利用准直加全反射的结构和双曲面结构对出射光线进行叠加，使得照明装置出射的光线覆盖角度大，且利用这种光路分段式的设计，使得不同阶段能量分别打在目标位置，通过叠加从而达到增大出光均匀度的效果。
以上所述的具体实例，对本发明的目的、技术方案和有益效果进行了进一步详细说明，所应理解的是，以上所述仅为本发明的具体实施例而已，并不用于限制本发明，凡在本发明的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (27)

  1. 一种透镜，包括底表面、内表面、外表面、及用于收容发光组件的第一收容腔，所述第一收容腔的壁面为透镜的内表面，其中，
    所述透镜为轴对称结构，
    所述内表面包括一个第一入光面及两个相对设置且为所述第一入光面相邻面的第二入光面，所述第一入光面为曲面或平面，所述第二入光面为沿远离第一收容腔方向凸出的曲面，所述第一入光面和所述第二入光面围成所述第一收容腔，
    所述底表面与所述第二入光面为相邻面，
    所述外表面包括两个位于中间顶部区域并彼此相交的第一反射面、位于所述两个第一反射面两侧并分别与相邻第一反射面相交的第一出光面、及两个与所述第一出光面相邻的第二出光面，两个所述第一反射面构成V形结构，所述第二出光面为沿远离第一收容腔方向凸出的曲面。
  2. 根据权利要求1所述的透镜，其中，
    入射在第一入光面上的光线经过第一入光面的折射后被准直，然后入射在第一反射面，经第一反射面全反射后，由第一出光面出射，入射在第二入光面的光线折射到第二出光面并被该第二出光面折射后出射。
  3. 根据权利要求1所述的透镜，其中，所述两个第一反射面相交的棱线距离底表面的高度小于第一出光面和第一反射面相交的棱线距离底表面的高度。
  4. 根据权利要求1所述的透镜，其中，所述第一入光面为波浪型曲面或向第一收容腔方向凸出的曲面。
  5. 根据权利要求1所述的透镜，其中，所述第二出光面为平面。
  6. 根据权利要求1所述的透镜，其中，所述透镜具有沿纵长方向拉伸形成的主体部。
  7. 根据权利要求6所述的透镜，其中，在所述主体部的两侧向外凸出设置有连接部。
  8. 根据权利要求1所述的透镜，其中，所述透镜为直线型或曲线型的轴对称结构，其延伸方向为纵向、与纵向垂直的方向为横向，其 中心轴与该横向和纵向正交，透镜在该纵向上每一点的横截面均相同。
  9. 根据权利要求1所述的透镜，其中，所述透镜为轴旋转对称结构。
  10. 根据权利要求1所述的透镜，其中，所述透镜的宽度小于35mm。
  11. 根据权利要求1所述的透镜，其中，所述第一入光面的宽度小于两个所述第一出光面相对的两条边缘线之间的距离。
  12. 根据权利要求1所述的透镜，其中，所述第一收容腔的高度大于所述透镜的高度的二分之一。
  13. 根据权利要求1所述的透镜，其中，所述第二入光面具有沿高度方向的第一端和第二端，第二出光面也具有沿高度方向的第一端和第二端，所述第二入光面和第二出光面的第二端均比第一端更接近底表面，且所述两个第一端之间的距离小于第二端之间的距离。
  14. 根据权利要求1所述的透镜，其中，所述透镜的形状为环形、弧形或轴旋转对称形。
  15. 一种透镜，包括底表面、内表面、外表面、及用于收容发光组件的第一收容腔，所述第一收容腔的壁面为透镜的内表面，其中，
    所述内表面包括一个第一入光面及一对相对设置的第二入光面，所述第一入光面大致沿横向连接一对第二入光面的上端缘，
    所述外表面包括两个位于中间顶部区域并彼此相交的第一反射面、位于所述两个第一反射面两侧并分别与相邻第一反射面相交的第一出光面、及两个与所述第一出光面相邻的第二出光面，
    两个所述第一反射面构成V形结构，一对所述第二入光面和一对所述第二出光面构成双曲面结构。
  16. 根据权利要求15所述的透镜，其中，
    入射在第一入光面上的光线经过第一入光面的折射后被准直，然后入射在第一反射面，经第一反射面全反射后，由第一出光面出射，入射在第二入光面的光线折射到第二出光面并被该第二出光面折射后出射。
  17. 一种光源模组，其中，其包括发光组件及权利要求1-16中任一所述的透镜，所述发光组件包括光源板及设置在光源板上的发光单元，所述发光单元收容在所述透镜的第一收容腔内。
  18. 根据权利要求17所述的光源模组，其中，所述光源板贴合设 置在所述底表面的下方。
  19. 根据权利要求18所述的光源模组，其中，所述光源板为长条形，所述发光单元沿所述光源板的纵长方向排布。
  20. 根据权利要求17所述的光源模组，其中，所述透镜具有沿纵长方向拉伸形成的主体部。
  21. 根据权利要求20所述的光源模组，其中，在所述主体部的两侧向外凸出设置有连接部。
  22. 根据权利要求21所述的光源模组，其中，所述光源模组还包括设置在所述透镜下方的安装基座，所述透镜可抽取式地组装于所述安装基座。
  23. 根据权利要求22所述的光源模组，其中，所述安装基座具有安装部，所述连接部可抽取式地收容于所述安装部内。
  24. 一种照明装置，其中，其包括底盘、与底盘连接的面罩、固定在底盘上的光源模组，所述光源模组包括发光组件及权利要求1-23中任一所述的透镜，所述发光组件包括光源板及设置在光源板上的发光单元，所述发光单元收容在所述透镜的第一收容腔内。
  25. 根据权利要求24所述的照明装置，其中，所述底盘为长方形，所述透镜为直条型，所述透镜的两端位于所述底盘横向侧壁的中部位置处，并沿所述底盘纵向侧壁的方向延伸。
  26. 根据权利要求24所述的照明装置，其中，所述底盘的宽度大于550mm。
  27. 根据权利要求24所述的照明装置，其中，所述透镜的宽度与所述底盘的宽度之比小于0.06。
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