CN109780506A

CN109780506A - With optical module

Info

Publication number: CN109780506A
Application number: CN201811061681.7A
Authority: CN
Inventors: 施威文; 王世昌
Original assignee: Lite On Electronics Guangzhou Co Ltd; Lite On Technology Corp
Current assignee: Lite On Electronics Guangzhou Co Ltd; Lite On Technology Corp
Priority date: 2017-11-15
Filing date: 2018-09-12
Publication date: 2019-05-21
Anticipated expiration: 2038-09-12
Also published as: TWI770275B; CN109780506B; TW201923303A

Abstract

It is a kind of to control the light distribution of light source with optical module, including lens and optical shield.Lens have the first incidence surface, the containing groove relative to the first light-emitting surface of the first incidence surface and positioned at the side of the first incidence surface, and wherein containing groove is to accommodate light source.Optical shield covers lens, and has opposite the second incidence surface and the second light-emitting surface, wherein the second incidence surface is between the first light-emitting surface and the second light-emitting surface, and the second incidence surface is with multiple subsurfaces.Turnover complexion is presented relative to these subsurfaces in the intersection of these adjacent subsurfaces.

Description

With optical module

Technical field

The present invention relates to a kind of optical modules, and in particular to a kind of with optical module.

Background technique

It is the mode that is set to light source in optical shield to generate required light in the design of conventional illuminator Shape.And be used for the lighting device of road lighting, in order to meet country variant lighting device setting regulation and different regions There is the demand in different illuminations, therefore, same lighting device generally requires to design several even tens of kinds of optical shields To meet the lighting demand on regulation and area.

However, for road lighting lighting device generally require for a long time develop and it is with high costs.Furthermore per more one The demand of kind lighting device also implies that more a maintenance costs.Therefore, for the factory of the lighting device of production road lighting Quotient needs a kind of exploitation quantity that can be reduced lighting device and the lighting device that can meet various countries' regulation Yu various demands again.

Summary of the invention

The present invention provides one kind with optical module, can reduce the exploitation quantity with optical module.

The embodiment of the present invention provide it is a kind of to control the light distribution of light source with optical module, including lens and light Learn outer cover.Lens have the first incidence surface, relative to the first light-emitting surface of the first incidence surface and positioned at the side of the first incidence surface Containing groove, wherein containing groove is to accommodate light source.Optical shield covers lens, and has the second opposite incidence surface With the second light-emitting surface, wherein the second incidence surface is between the first light-emitting surface and the second light-emitting surface, and the second incidence surface has Multiple subsurfaces.Turnover complexion is presented relative to these subsurfaces in the intersection of these adjacent subsurfaces.Outside lens and optics One of cover generates rotational symmetry or non-rotationally-symmetric first smooth shape, and another generation rotational symmetry of lens and optical shield The second smooth shape.

Based on above-mentioned, in the embodiment of the present invention includes lens and optical shield with optical module, outside lens and optics One of cover generates rotational symmetry or non-rotationally-symmetric first smooth shape, and another generation rotational symmetry of lens and optical shield The second smooth shape.It is therefore, of the invention to generate required light shape via the combination of lens and optical shield with optical module, Therefore the design quantity of optical shield can be greatly decreased.

To make the foregoing features and advantages of the present invention clearer and more comprehensible, special embodiment below, and cooperate institute's accompanying drawings It is described in detail below.

Detailed description of the invention

Figure 1A is schematically shown as the schematic side view of the lighting device of the first embodiment of the present invention.

Figure 1B is the schematic cross-sectional view that the lighting device of Figure 1A is cut along optical axis A.

Fig. 2A to Fig. 2 C is the schematic diagram of three kinds of subsurfaces of the optical shield in the embodiment of the present invention.

Fig. 3 A to Fig. 3 B is the stereoscopic schematic diagram of the lens of the embodiment of the present invention.

Fig. 3 C and Fig. 3 D is the lens of Fig. 3 B respectively along the schematic cross-sectional view of the second long axis B2 and the first long axis B1.

Fig. 4 A to Fig. 4 B is the stereoscopic schematic diagram of the lens of another embodiment of the present invention.

Fig. 4 C and Fig. 4 D is the lens of Fig. 4 B respectively along the schematic cross-sectional view of longitudinally B3 and width direction B4.

Fig. 5 A to Fig. 5 B is the stereoscopic schematic diagram of the lens of another embodiment of the present invention.

Fig. 5 C and Fig. 5 D is the lens of Fig. 5 B respectively along the B4 schematic cross-sectional view of longitudinally B3 and width direction.

Fig. 6 A to Fig. 6 B is the stereoscopic schematic diagram of the lens of one more embodiment of the present invention.

Fig. 6 C is the schematic cross-sectional view of the lens of Fig. 6 B.

Fig. 7 A to Fig. 7 B is the stereoscopic schematic diagram of the optical shield of the embodiment of the present invention.

Fig. 7 C is the schematic cross-sectional view of the optical shield of Fig. 7 B.

Fig. 7 D is the upper schematic diagram of the optical shield of Fig. 7 A.

Fig. 8 A to Fig. 8 B is the stereoscopic schematic diagram of the optical shield of another embodiment of the present invention.

Fig. 8 C and Fig. 8 D is that the optical shield of Fig. 8 B is illustrated along the section view of width direction C4 and longitudinally C3 respectively Figure.

Fig. 8 E is the upper schematic diagram of the optical shield of Fig. 8 A.

Fig. 9 A to Fig. 9 B is the stereoscopic schematic diagram of the optical shield of another embodiment of the present invention.

Fig. 9 C and Fig. 9 D is that the optical shield of Fig. 9 B is illustrated along the section view of width direction C4 and longitudinally C3 respectively Figure.

Fig. 9 E is the upper schematic diagram of the optical shield of Fig. 9 A.

Figure 10 is the light shape distribution map of the light source in the embodiment of the present invention.

Figure 11 A and Figure 11 B is the light source of Figure 10 after the lens of Fig. 3 A, respectively in the first direction long axis B1 and second Produced light shape distribution map on the direction long axis B2.

Figure 11 C and Figure 11 D is respectively the light shape of Figure 11 A and Figure 11 B using generated after the optical shield of Fig. 7 A Light shape distribution map.

The light source that Figure 12 A is Figure 10 generated light shape distribution map after the lens of Fig. 6 A.

The light shape that Figure 12 B is Figure 12 A is using light shape distribution map generated after the optical shield of Fig. 7 A.

Figure 13 A is the equiluminous line chart of light source generated light distribution after the lens of Fig. 3 A of Figure 10.

Figure 13 B be Figure 13 A light distribution using Fig. 7 A optical shield after caused by light distribution isophote Figure.

Figure 14 A is the equiluminous line chart of light source generated light distribution after the lens of Fig. 6 A of Figure 10.

Figure 14 B be Figure 14 A light distribution using Fig. 7 A optical shield after caused by light distribution isophote Figure.

Figure 15 A is that the light source of Figure 10 first passes through the lens of Fig. 4 A, using generated light after the optical shield of Fig. 7 A The equiluminous line chart of distribution.

Figure 15 B is that the light source of Figure 10 first passes through the lens of Fig. 5 A, using generated light after the optical shield of Fig. 7 A The equiluminous line chart of distribution.

Figure 16 A is that the light source of Figure 10 first passes through the lens of Fig. 6 A, using generated light after the optical shield of Fig. 8 A The equiluminous line chart of distribution.

Figure 16 B is that the light source of Figure 10 first passes through the lens of Fig. 6 A, using generated light after the optical shield of Fig. 9 A The equiluminous line chart of distribution.

Figure 17 is schematically shown as the schematic cross-sectional view of the lighting device of the second embodiment of the present invention.

Figure 18 is schematically shown as the schematic cross-sectional view of the lighting device of the third embodiment of the present invention.

Figure 19 is schematically shown as the schematic cross-sectional view of the lighting device of the fourth embodiment of the present invention.

Figure 20 is schematically shown as a kind of stereoscopic schematic diagram of package assembly of the lighting device of the embodiment of the present invention.

Specific embodiment

Figure 1A is schematically shown as the schematic side view of the lighting device of the first embodiment of the present invention.Figure 1B is the illumination of Figure 1A The schematic cross-sectional view that device is cut along optical axis A.Fig. 2A to Fig. 2 C is that three seeds of the optical shield in the embodiment of the present invention are bent The schematic diagram in face.Fig. 3 A to Fig. 3 B is the stereoscopic schematic diagram of the lens of the embodiment of the present invention.Fig. 3 C and Fig. 3 D is figure respectively The lens of 3B along the second long axis B2 and the first long axis B 1 schematic cross-sectional view.Fig. 4 A to Fig. 4 B is another implementation of the invention The stereoscopic schematic diagram of the lens of example.Fig. 4 C and Fig. 4 D is the lens of Fig. 4 B respectively along longitudinally B3 and width direction B4 Schematic cross-sectional view.Fig. 5 A to Fig. 5 B is the stereoscopic schematic diagram of the lens of another embodiment of the present invention.Fig. 5 C and Fig. 5 D distinguishes It is the lens of Fig. 5 B along the B4 schematic cross-sectional view of longitudinally B3 and width direction.Fig. 6 A to Fig. 6 B is of the invention another The stereoscopic schematic diagram of the lens of embodiment.Fig. 6 C is the schematic cross-sectional view of the lens of Fig. 6 B.Fig. 7 A to Fig. 7 B is of the invention The stereoscopic schematic diagram of the optical shield of embodiment.Fig. 7 C is the schematic cross-sectional view of the optical shield of Fig. 7 B.Fig. 7 D is the light of Fig. 7 A Learn the upper schematic diagram of outer cover.Fig. 8 A to Fig. 8 B is the stereoscopic schematic diagram of the optical shield of another embodiment of the present invention.Fig. 8 C It is the optical shield of Fig. 8 B respectively along the schematic cross-sectional view of width direction C4 and longitudinally C3 with Fig. 8 D.Fig. 8 E is Fig. 8 A Optical shield upper schematic diagram.Fig. 9 A to Fig. 9 B is the stereoscopic schematic diagram of the optical shield of another embodiment of the present invention. Fig. 9 C and Fig. 9 D is the optical shield of Fig. 9 B respectively along the schematic cross-sectional view of width direction C4 and longitudinally C3.Fig. 9 E is The upper schematic diagram of the optical shield of Fig. 9 A.

For convenience of explanation, the weft of the optical shield in part schema is only schematically illustrate, draws there is no whole, example As the weft of the optical shield of Fig. 7 B is only illustrated with three wefts.

Please also refer to Figure 1A and Figure 1B, the lighting device 10 of the present embodiment including light source 110 and matches optical module 100.Match Light distribution of the optical module 100 to control light source 110.It include lens 120 and optical shield 130 with optical module 100.Lens 120 have the first incidence surface 121, relative to the first light-emitting surface 122 of the first incidence surface 121 and positioned at the first incidence surface 121 Side containing groove 123, wherein containing groove 123 is to accommodate light source 110.In the present embodiment, the lens of Figure 1B 120 be the lens 120D of Fig. 6 A.But invention is not limited thereto, lens 120 also can for the lens 120A of Fig. 3 A, Fig. 4 A it is saturating Mirror 120B, the lens 120C of Fig. 5 A or lens according to need in other shapes replace.

Optical shield 130 covers lens 120, and has opposite the second incidence surface 131 and the second light-emitting surface 132, wherein Second incidence surface 131 is between the first light-emitting surface 122 and the second light-emitting surface 132, and the second incidence surface 131 has multiple sons Curved surface 133.Turnover sample is presented relative to these subsurfaces 133 in intersection 133f, 133g of these adjacent subsurfaces 133 Looks.One of lens 120 and optical shield 130 generate rotational symmetry or non-rotationally-symmetric first smooth shape, and lens 120 and light Learn the second smooth shape of another generation rotational symmetry of outer cover 130.In the present embodiment, the optical shield 130 of Figure 1B is Fig. 7 A's Optical shield 130A.But invention is not limited thereto, and optical shield 130 also can be for optical shield 130B, Fig. 9 A's of Fig. 8 A Optical shield 130C or replaced according to need with the deformation of other optical shields.

In the present embodiment, light source 110 is, for example, light emitting diode (light emitting diode, LED).But this Invention is not limited, and light source 110 also can be laser diode, incandescent lamp, mercury lamp, halogen lamp, fluorescent lamp or other suitable Light source.

In the present embodiment, lens 120 can be polycarbonate (Polycarbonate, PC), polymethyl methacrylate (Polymethylmethacrylate,PMMA.That is acryl), the suitable material such as silica gel or optical glass, preferably press Gram force light extraction efficiency with higher and can be made in a manner of ejection formation.And optical shield 130 can for polycarbonate, The suitable material such as acryl, silica gel or glass, preferably polycarbonate have preferable weatherability and can project into The mode of type makes.In addition, matching optical module 100 for large-sized, optical glass material is also can be selected in optical shield 130.

Furthermore in the present embodiment, diffusant can be more added in optical shield 130, to promote optical shield 130 for light The ability of homogenization.And scratch resistant cured film (Hard Coating) can be coated on the second light-emitting surface 132 of optical shield 130, To increase the structural strength of optical shield 130.

It will then illustrate the specific features of the optical shield 130 of lighting device 10 in embodiments of the present invention below.

Referring again to Figure 1B, in the present embodiment, the optical shield 130 of lighting device 10 is close to optical shield 130 The thickness H1 of the center of the subsurface (for example, subsurface 133a) at edge to the second light-emitting surface 132 is greater than close to optical shield 130 center subsurface (for example, subsurface 133b) center to the second light-emitting surface 132 thickness H2.Wherein, each The one end of subsurface 133 at a distance from the second light-emitting surface 132 from the edge close to optical shield 130 is toward close to optical shield 130 The one end at center successively decrease.

In addition, the second incidence surface 131 of optical shield 130 is adjacent on the direction around the optical axis A of optical shield 130 The intersection 133f shape in the form of ridges of subsurface 133 (such as Figure 1B, Fig. 2A to Fig. 2 C and Fig. 7 D, wherein Fig. 7 D can be significantly Find out intersection 133f shape in the form of ridges), and the second incidence surface 131 of optical shield 130 is at the edge from optical shield 130 The intersection 133g of adjacent subsurface has segment difference (such as Figure 1B, Tu2AZhi on to the direction at the center of optical shield 130 Fig. 2 C and Fig. 7 C, wherein Figure 1B and Fig. 7 C is apparent that intersection 133g has segment difference).

It is worth noting that, being in the curved surface on optical axis direction compared to Fresnel lens (Fresnel lens) Continuous and derivable curved surface, the second incidence surface 131 of the optical shield 130 of the embodiment of the present invention include a plurality of subsurfaces 133, In on the direction around the optical axis A of optical shield 130 adjacent subsurface 133 intersection 133f shape in the form of ridges.Cause This, the structure of the second incidence surface 131 of the optical shield 130 of the embodiment of the present invention is different from the structure of Fresnel lens.

Furthermore in the present embodiment, the subsurface 133 of optical shield 130 has the function for homogenizing light distribution, but Invention is not limited thereto, and subsurface 133 also may be designed as concentrating light or generate other light shapes according to need.Below It will be described the specific embodiment that subsurface 133 homogenizes light distribution.

A to Fig. 2 C referring to figure 2. a, firstly, dotted line in Fig. 2A and Fig. 2 B denotes subsurface 133c and subsurface Line at the convex ridge of the intersection 133f of the adjacent subsurface 133 of the respective curved surface of 133d, and another dotted line denotes The extension line of subsurface 133c and point of the respective curved surface of subsurface 133d from 132 shortest distance of the second light-emitting surface, neutron The distance between two dotted lines of curved surface 133c are 0.5 millimeter, and the distance between two dotted lines of subsurface 133d are 1.0 Millimeter, in addition, the angle between the minimum point of curved surface and the highest point of curved surface of the subsurface 133e of Fig. 2 C is 60 degree.

Table one

	Divergence range	Dissipating effect
			Subsurface 133c	32 degree	It is low
Subsurface 133d	98 degree	In
			Subsurface 133e	110 degree	It is high

Table one is the dissipating effect of subsurface 133c, subsurface 133d and subsurface 133e, specifically, by light source 110 45 degree of the direction of mandrel B exports the light of light source 110 toward the direction of optical shield 140 thereto, wherein light source 110 The output angle range of light is 5 degree.Therefore, 5 degree of range diverging is 32 degree by subsurface 133c, and dissipating effect is low； The diverging of 5 degree of range is 98 degree by subsurface 133d, during dissipating effect is；And 5 degree of range diverging is by subsurface 133e 110 degree, dissipating effect is height.Therefore, the subsurface 133 of optical shield 130 can be designed as above-mentioned according to environmental demand The one of which of subsurface 133c, subsurface 133d and subsurface 133e come light shape or dissipating effect required for generating, and Invention is not limited thereto, and the subsurface 133 of optical shield 130 also can be above-mentioned subsurface 133c, subsurface 133d and son is bent The combination of face 133e generates other specific light shapes.

Therefore, it is only capable of having the function of focusing the light into compared to Fresnel lens, the optical shield of the embodiment of the present invention 130 can generate required light shape distribution according to the structure of subsurface 133, and be not limited to concentrate light or dissipate light Light shape distribution.

And one of said lens 120 and optical shield 130 generate rotational symmetry or non-rotationally-symmetric first smooth shape, and Second smooth shape of another generation rotational symmetry of lens 120 and optical shield 130.Specifically, rotation is generated for lens 120 Symmetrical or non-rotationally-symmetric first smooth shape, and optical shield 130 generates the embodiment of the second smooth shape of rotational symmetry；Or Person is, optical shield 130 generates rotational symmetry or non-rotationally-symmetric first smooth shape, and lens 120 generate the of rotational symmetry The embodiment of two smooth shapes.

First illustrate that lens 120 generate rotational symmetry or non-rotationally-symmetric first smooth shape, for example, Fig. 3 A to Fig. 6 C below In, lens 120A to lens 120D is respectively that lens 120A can produce the non-rotationally-symmetric first smooth shape, lens 120B can produce The smooth shape of the first of rotational symmetry, lens 120C can produce the first smooth shape of rotational symmetry and lens 120D can produce axial symmetry The first smooth shape, and optical shield 130 generate rotational symmetry the second smooth shape embodiment, for example, Fig. 7 A's to Fig. 7 C Optical shield 130A generates the second smooth shape of rotational symmetry.

" rotational symmetry " in the present specification refers to figure around every angle of the rotation one less than 360 degree of symmetry axis Afterwards, this figure can be overlapped with the figure before rotation, then this figure is the figure of rotational symmetry.For example, square is 90 degree Rotational symmetry figure (because after being square and being often rotated by 90 °, figure can be overlapped before rotation), rectangle for 180 degree rotation Turn symmetric figure, and triangle is 120 degree of rotational symmetry.In addition, " axial symmetry " refers to that figure is appointed around the every rotation of symmetry axis After angle of anticipating, this figure all can with is overlapped before rotation, that is, axial symmetry is as at any angle symmetrically, and axial symmetry Circle is, for example, circle.

Firstly, lens 120A in the present embodiment is issued perpendicular to light source 110 please also refer to Fig. 3 A to Fig. 3 D Light central axis B direction have the first long axis B1, containing groove 123 is at the center of the light issued perpendicular to light source 110 The direction of axis B is different from the direction of the second long axis B2 with the direction of the second long axis B2, the first long axis B1, and lens 120A is produced Raw non-rotationally-symmetric first smooth shape.In the present embodiment, the first long axis B1 is perpendicular to the second long axis B2, the first light-emitting surface 122 Non- on the direction perpendicular to the first long axis B1 is mirror symmetry, and containing groove 123 is non-on the direction of the second long axis B2 is Mirror symmetry.In addition, in the present embodiment, the first light-emitting surface 122 is mirror on the direction perpendicular to the second long axis B2 to right Claim, and containing groove 123 is mirror symmetry on the direction of the first long axis B1.

Referring again to Fig. 4 A to Fig. 4 D, lens 120B in the present embodiment has longitudinally B3 and width direction B4. In Fig. 4 A and Fig. 4 B, the high spot on the first light-emitting surface 122 is painted with solid line, and recess is painted with dotted line.Namely It says, the first light-emitting surface 122 has X-shape protrusion 124, ginseng of the X-shape protrusion 124 in the optical axis C perpendicular to lens 120B The extending direction of orthographic projection 124 ' (e.g. in the xz plane of Fig. 3 A) is examined in plane relative to longitudinally B3 and width side It is tilted to B4.In Figure 4 A, the high spot on the first incidence surface 121 is painted with solid line, and recess is painted with dotted line.Also It is to say, the first incidence surface 121 has X-shape recess 125, and X-shape recess 125 be on the reference plane (e.g. Fig. 4 A's In xz plane) the extending direction of orthographic projection 124 ' tilted relative to longitudinally B3 and width direction B4.In the present embodiment In, the longitudinally B3 and width direction B4 of lens 120B is orthogonal, therefore lens 120B generates rotational symmetry (e.g. The rotational symmetry of 180 degree) the first smooth shape；And in other embodiments, the longitudinally B3 and width direction B4 of lens 120B It is not orthogonal, so that lens 120B can produce the non-rotationally-symmetric first smooth shape.

Referring again to Fig. 5 A to Fig. 5 D, lens 120C in the present embodiment has longitudinally B3 and width direction B4. In Fig. 5 A and Fig. 5 B, the high spot on the first light-emitting surface 122 is painted with solid line, and recess is painted with dotted line.Namely It says, the first light-emitting surface 122 has cross protrusion 126, ginseng of the cross protrusion 126 in the optical axis C perpendicular to lens 120C The extending direction for examining in plane the orthographic projection 126 ' (e.g. in the xz plane of Fig. 5 A) is identical to longitudinally B3 and width side To B4.In fig. 5, the high spot on the first incidence surface 121 is painted with solid line, and recess is painted with dotted line.That is, First incidence surface 121 has cross recess 127,127 (the e.g. xz plane of Fig. 5 A on the reference plane of cross recess On) the extending direction of orthographic projection 126 ' be identical to longitudinally B3 and width direction B4.In the present embodiment, lens 120C Longitudinally B3 and width direction B4 it is orthogonal, therefore lens 120C generate rotational symmetry (the e.g. rotation of 180 degree The smooth shape of first symmetrically)；And in other embodiments, the longitudinally B3 and width direction B4 of lens 120C be not orthogonal, So that lens 120C can produce the non-rotationally-symmetric first smooth shape.

Referring again to Fig. 6 A to Fig. 6 C, the first incidence surface 121 and the first light-emitting surface of lens 120D in the present embodiment 122 all axisymmetricly, wherein the side 128 of the first incidence surface 121 is got over closer to the vertex 129 of the first light-emitting surface 122 Dou Qiao.

Furthermore Fig. 7 A to Fig. 7 C is please referred to, in the present embodiment, the second light-emitting surface 131 of optical shield 130A is in axis pair Claim, wherein these subsurfaces 133 are in multilayer annular arrangement around the optical axis A of optical shield 130A, and optical shield 130A is generated Symmetrically the second smooth shape.

Lens 120A to lens 120D based on above-mentioned Fig. 3 A to Fig. 6 C can produce rotational symmetry or non-rotationally-symmetric the One smooth shape, and the optical shield 130A of Fig. 7 A to Fig. 7 C generates the second smooth shape of rotational symmetry.Therefore, the present embodiment match optical mode Block 100 can select the one of which of above-mentioned four kinds of lens 120A-120D to combine with optical shield 130A on demand, that is, It says, the lighting device 10 of the present embodiment can be combined into the lighting device 10 of four kinds of shapes of not sharing the same light.It is noted that lens 120D can produce axisymmetric smooth shape, and optical shield 130A also can produce the light shape of rotational symmetry, thus lens 120D with In the combination of optical shield 130A, lens 120D can produce the axisymmetric first smooth shape (or second smooth shape) and optical shield 130A can produce the second smooth shape (or first smooth shape) of rotational symmetry.

Below besides bright lens 120 generate rotational symmetry the second smooth shape, for example, lens 120D of Fig. 6 A to Fig. 6 C can The axisymmetric second smooth shape is generated, and optical shield 130 generates the embodiment party of rotational symmetry or non-rotationally-symmetric first smooth shape Formula, for example, the optical shield 130B of Fig. 8 A to Fig. 9 E and 130C can produce the first smooth shape of mirror symmetry.

Firstly, the lens 120D of the present embodiment can produce the smooth shape of axial symmetry second, identical please also refer to Fig. 6 A to Fig. 6 C Feature can refer to above description, therefore repeat no more.

Furthermore referring again to Fig. 8 A to Fig. 9 E, optical shield 130B and 130C in the present embodiment has longitudinally C3 and width direction C4.Optical shield 130B and 130C in longitudinally C3 be mirror symmetry, and in width direction C4 be non-mirror To symmetrical, and optical shield 130B and 130C generates non-rotationally-symmetric first smooth shape, and wherein these subsurfaces 133 are in lengthwise It is mirror symmetry on the C3 of direction and is non-mirror on the C4 of width direction to symmetrical multilayer annular arrangement.Multilayer annular arrangement Close to several layers of the center of optical shield 130B and 130C (such as close to subsurface 133b) in heart-shaped cyclic annular.In addition, in this reality It applies in example, the height of optical shield 130C of optical shield 130B and Fig. 9 A of Fig. 8 A is different.That is, Fig. 8 A that arranged in pairs or groups Optical shield 130B lighting device thickness can be greater than arranged in pairs or groups Fig. 9 A optical shield 130C lighting device thickness Degree.

Lens 120D based on above-mentioned Fig. 6 A to Fig. 6 C can produce the axisymmetric second smooth shape, and the light of Fig. 8 A to Fig. 9 E Learning outer cover 130B and 130C can produce the first smooth shape of mirror symmetry.Therefore, the present embodiment with optical module 100 can be on demand And one of them of above two optical shield 130B, 130C is selected to combine with lens 120D, that is to say, that the present embodiment With optical module 100 can be combined into two kinds of shapes of not sharing the same light with optical module 100.

It is noted that lens are the first smooth shape and optical shield is the implementation of the second smooth shape according to above-described embodiment Mode altogether there are four types of, and lens are the second smooth shape and optical shield be the first smooth shape embodiment altogether there are two types of, therefore can divide Be not combined into totally six kinds of shapes of not sharing the same light with optical module 100.But invention is not limited thereto, the width and height of optical shield Than that can also be designed according to the actual demand of light shape or light distribution.

First illustrate the lens 120 and the producible light distribution of optical shield 130 according to the above embodiment of the present invention below Feature, then besides bright optical shield different width and height ratio embodiment.

Figure 10 is the light shape distribution map of the light source in the embodiment of the present invention.The light source that Figure 11 A and Figure 11 B is Figure 10 passes through After the lens of Fig. 3 A, respectively in the first direction long axis B1 and produced light shape distribution map on the second direction long axis B2.Figure 11 C with Figure 11 D is respectively the light shape of Figure 11 A and Figure 11 B using light shape distribution map generated after the optical shield of Fig. 7 A.Figure The light source that 12A is Figure 10 generated light shape distribution map after the lens of Fig. 6 A.Figure 12 B is the light shape of Figure 12 A using figure Light shape distribution map caused by after the optical shield of 7A.

Please also refer to Figure 10 to Figure 11 D, the light source of Figure 10 is light emitting diode, the selected light source known to Figure 10 Light shape is more concentrated, therefore can detecte out the ability of lens 120 and the generation light shape of optical shield 130.Then, due to lens 120A has mirror symmetry (such as Fig. 3 D) on the first direction long axis B1, therefore the light shape of Figure 11 A also has mirror symmetry； Conversely, as lens 120A does not have symmetry (such as Fig. 3 C) on the second direction long axis B2, therefore the light shape of Figure 11 B Without symmetry.It is noted that Figure 11 C and Figure 11 D be compared to 11A and Figure 11 B, the light shape of Figure 11 C and Figure 11 D It is distributed more average, it is seen that the subsurface 133 for obtaining optical shield 130A has the effect of homogenizing light distribution.

Referring again to Figure 10, Figure 12 A and Figure 12 B, outside the lens 120D as used in Figure 12 A and Figure 12 B and optics Cover 130A all has rotational symmetry, therefore all can produce the light shape with rotational symmetry.And it is similar to above-mentioned Figure 11 C and Figure 11 D Light shape distribution, compared to Figure 12 A, the distribution of the light shape of Figure 12 B is also more average, therefore also it can be seen that optical shield The subsurface 133 of 130A has the function of homogenizing light distribution.

Then, the producible light distribution (light energy of combination according to lens and optical shield in above-described embodiment is sketched Distribution, i.e. equiluminous line chart).First illustrate that lens generate rotational symmetry or non-rotationally-symmetric first smooth shape below, and outside optics Cover generates the light distribution of the embodiment of the second smooth shape of rotational symmetry, besides bright optical shield generates rotational symmetry or non-rotation Turn symmetrical first smooth shape, and lens generate the light distribution of the embodiment of the second smooth shape of rotational symmetry.

Figure 13 A is the equiluminous line chart of light source generated light distribution after the lens of Fig. 3 A of Figure 10.Figure 13 B is The light distribution of Figure 13 A using Fig. 7 A optical shield after caused by light distribution equiluminous line chart.Figure 14 A is Figure 10 Light source generated light distribution after the lens of Fig. 6 A equiluminous line chart.Figure 14 B be Figure 14 A light distribution using The equiluminous line chart of light distribution caused by after the optical shield of Fig. 7 A.Figure 15 A is that the light source of Figure 10 first passes through the saturating of Fig. 4 A Mirror, using the equiluminous line chart of light distribution generated after the optical shield of Fig. 7 A.Figure 15 B is that the light source of Figure 10 first passes through The lens for crossing Fig. 5 A, using the equiluminous line chart of light distribution generated after the optical shield of Fig. 7 A.

Firstly, illustrating that lens generate rotational symmetry or non-rotationally-symmetric first smooth shape, and optical shield generates rotation pair The light distribution of the embodiment of the second smooth shape claimed.In the schema of isophote, the unit of horizontal axis and the longitudinal axis is with the present invention Be unit with height set by optical module, such as 10 feet of height is set, and the number indicated by isophote For illumination, unit is fc (Lm/ft², i.e., every square feet of lumen value).In addition, dotted line is the company of half maximum intensity Line.

Please also refer to Figure 13 A and Figure 13 B, the light distribution of Figure 13 A and Figure 13 B are in addition to asymmetrical characteristic, light point Cloth is also biased to be distributed in top on longitudinal axis, therefore, if the use device as road lighting, may be configured as Figure 13 A and figure Pavement side (or house side) is biased in the lower section of the longitudinal axis of 13B, and the top of the longitudinal axis of Figure 13 A and Figure 13 B is inclined To lane side, that is to say, that while all being illuminated on lane and pavement, and the light distribution range in lane side is smaller, and Light distribution range in pavement side is larger.

Then, Figure 14 A and Figure 14 B are please referred to, since the optical shield 130A of lens 120D and Fig. 7 A of Fig. 6 A all has Symmetrically, therefore, the light distribution of Figure 14 A and Figure 14 B also has rotational symmetry.

Furthermore referring to Figure 15 A and Figure 15 B, if Figure 15 A and Figure 15 B is compared, the light distribution of Figure 15 B is more Uniformly, therefore it is appropriate for general illumination on a large scale；And the more long and narrow concentration of the light distribution of Figure 15 A, therefore be suitable for narrow The illumination that arrow path road/lane is done.Such as light projection can be reduced into the house for being projected to road both sides perpendicular to road direction Light energy.

Then, illustrate that optical shield generates rotational symmetry or non-rotationally-symmetric first smooth shape, and lens generate rotation pair The light distribution of the embodiment of the second smooth shape claimed.

Figure 16 A is that the light source of Figure 10 first passes through the lens of Fig. 6 A, using generated light after the optical shield of Fig. 8 A The equiluminous line chart of distribution.The light source that Figure 16 B is Figure 10 first passes through the lens of Fig. 6 A, after the optical shield using Fig. 9 A The equiluminous line chart of generated light distribution.

Referring to Figure 16 A and Figure 16 B, if Figure 16 A and Figure 16 B is compared, the light distribution of Figure 16 A is on transverse axis Narrow distribution, 0.1fc range with 4 times bar at high proportion, and the wider distribution of Figure 16 B on transverse axis, in 0.1fc model Enclose the bar high proportion with 5 times.Therefore, in the setting of the spacing between lamp stand and lamp stand, Figure 16 B can have wider Spacing.

Then, illustrate the embodiment party of the different width and height ratio according to the optical shield of the above embodiment of the present invention Formula.

Figure 17 is schematically shown as the schematic cross-sectional view of the lighting device of the second embodiment of the present invention.Figure 18 is schematically shown as the present invention 3rd embodiment lighting device schematic cross-sectional view.Figure 19 is schematically shown as the lighting device of the fourth embodiment of the present invention Schematic cross-sectional view.

Please also refer to Figure 1B, in the present embodiment, lighting device 10 further includes reflection base 140, wherein light source 110, thoroughly Mirror 120 and optical shield 130 are configured on reflection base 140, and reflection base 140 has the light issued with light source 110 Central axis B presss from both sides the reflecting surface 142 of the first angle α, and the light that light source 110 is issued is in the maximum intensity side after lens 120 There is the second angle β to E and central axis B.E.g., the light shape of Figure 11 A has maximum intensity, figure on ± 60 degree of direction The light shape of 11B light shape with maximum intensity and Figure 12 A on the direction of -30 degree has maximum strong on ± 45 degree of direction Degree.Preferably, the second angle β is less than or equal to the first angle α, make lighting device 10 can be according to actual condition of road surface and by light The maximum intensity direction E of shape illuminates the desired position on road, and so invention is not limited thereto.

In addition, reflection base 140 has flange 141, and optical shield 130 is flat in the lighting device 10 of the present embodiment Row is in, with a thickness of H, optical shield 130 is at the bottom for leaning on close to sources 110 on the direction of the central axis B for the light that light source 110 is issued Portion to flange 141 far from light source 110 top in the distance (i.e. flange height) on the direction of parallel central axis B be T.? (for example, lighting device 10 of Figure 18), H≤T in the embodiment of the present invention can make optical shield 130 is completely hidden reflecting In the flange 141 of pedestal 140, therefore the chance that damage is hit by foreign matter can be reduced.(example in other embodiments of the invention The lighting device 10 of the lighting device 10 of for example Figure 1B and Figure 17), H > T, optical shield 130 can be made via e.g. rainwater or Dew such as flows through at the modes, and the ability with self-cleaning.

Furthermore outer diameter of the optical shield 130 on the direction perpendicular to central axis B is D.Although it is noted that originally Invention is not intended to limit the thickness H of optical shield 140 and the size and ratio of outer diameter D, but in order to most preferably implement the present invention, works as H > T When, the D/H of the present embodiment is most preferably fallen in the range of 0.5 to 25.For example, the D/H of the lighting device 10 of Figure 1B can It is 4.24, wherein outer diameter D is 212 millimeters, and thickness H is 50 millimeters；The D/H of the lighting device 10 of Figure 17 can be 2.4, China and foreign countries Diameter D is 212 millimeters, and thickness H is 88 millimeters；And the D/H of the lighting device 10 of Figure 18 can be 21.2, wherein outer diameter D is 212 millis Rice, thickness H are 10 millimeters.

Furthermore the second light-emitting surface 132 of the optical shield 130 of the lighting device 10 in above-described embodiment can be integral type Design, that is, optical shield 130 the second light-emitting surface 132 be smooth surface, can by the inner sealing of lighting device 10 and Reach dust-proof and waterproof function, therefore there is preferable environment resistant pollution capacity, that is, safeguard that cost is relatively low.This Outside, the thickness of optical shield 130, which is approximately more than 1.5 millimeters or more, can refractive power, therefore, fill compared to traditional illumination It sets and generally requires thicker thickness and could have enough brightness in the wrong, the optical shield 130 in above-described embodiment is in relatively thin thickness Degree can still have enough refractive powers, therefore the lighting device 10 in above-described embodiment can also reduce the cost of manufacture.

In addition to this, in the present embodiment, the size of flange height can be according to design requirement, and invention is not limited thereto, And the present invention may include no flange person, i.e. T can be 0.Moreover, in the above-described embodiments, the reflection bottom of Figure 1B, Figure 17 and Figure 18 First angle α of the reflecting surface 142 of seat 140 is respectively less than 90 degree, but invention is not limited thereto, such as shown in Figure 19, light distribution First angle α of the reflecting surface 142 of the reflection base 140 of module 1100 is also greater than equal to 90 degree.

Lighting device (such as lighting device 10 of Figure 1B, Figure 17 and Figure 18) based on the embodiments of the present invention it is saturating The light distribution of the explanation of mirror 120, optical shield 130 and reflection base 140, the lighting device 10 of the embodiment of the present invention can It is divided into four seed types.Specifically, Figure 1B, Figure 17 and Figure 18 are please referred to, the first kind of light distribution is (such as Figure 18 Lighting device 10): the light that light source 110 is issued by after optical shield 130 in the light intensity distributions of far field, with optics Light energy on direction of the optical axis A folder more than or equal to 90 degree of outer cover 130 accounts for gross energy of the light after through optical shield 130 Ratio be 0%, and light accounts for after through optical shield 130 with the light energy on 80 degree to 90 degree of direction of optical axis A folder The ratio of gross energy is less than 10%.

In another embodiment, the Second Type of light distribution are as follows: the light that light source 110 is issued is passing through optical shield 130 Afterwards in the light intensity distributions of far field, accounted for the light energy on direction of the optical axis A of optical shield 130 folder more than or equal to 90 degree Light in the ratio by the gross energy after optical shield 130 less than 2.5%, and light after through optical shield 130 with optical axis The light energy that A is pressed from both sides on 80 degree to 90 degree of direction accounts for the ratio of gross energy less than 10%.

In another embodiment, the third type of light distribution are as follows: the light that light source 110 is issued is passing through optical shield 130 Afterwards in the light intensity distributions of far field, accounted for the light energy on direction of the optical axis A of optical shield 130 folder more than or equal to 90 degree Light in the ratio by the gross energy after optical shield 130 less than 5%, and light after through optical shield 130 with optical axis A Light energy on the direction of 80 degree to 90 degree of folder accounts for the ratio of gross energy less than 20%.

Furthermore the 4th type of light distribution is (such as lighting device 10 of the lighting device 10 of Figure 1B and Figure 17): light source 110 light issued, in the light intensity distributions of far field, press from both sides after through optical shield 130 with the optical axis A of optical shield 130 The light energy on direction more than or equal to 90 degree accounts for light and is not limited in the ratio by the gross energy after optical shield 130 System, and light energy of the light after through optical shield 130 on the direction for pressing from both sides 80 degree to 90 degree with optical axis A accounts for the ratio of gross energy Example is also unrestricted.

Based on above-mentioned, the embodiment of the present invention includes lens and optical shield with optical module and lighting device, lens with One of optical shield generates rotational symmetry or non-rotationally-symmetric first smooth shape, and another generation of lens and optical shield is revolved Turn symmetrical second smooth shape.Therefore, needed for being generated via the combination of lens and optical shield with optical module and lighting device Light shape, may conform in lighting device setting regulation and be suitable for a variety of different condition of road surface.In addition, the present invention is implemented Example can substantially subtract via the combination of lens and optical shield compared to traditional lighting device with optical module and lighting device The design quantity of few optical shield.

Figure 20 is schematically shown as a kind of stereoscopic schematic diagram of package assembly of the lighting device of the embodiment of the present invention.Please refer to figure 20, in the present embodiment, the reflection base 240 of the lighting device 10 of Figure 20 can be the reflection base 140 of Figure 1B.In addition, Figure 20 Lighting device 10 optical shield 230 can be Figure 1B optical shield 130.That is, the lighting device 10 of Figure 20 Optical shield 230 can for Fig. 7 A optical shield 130A, Fig. 8 A optical shield 130B, Fig. 9 A optical shield 130C or The optical shield used according to other demands, invention is not limited thereto.

In addition, in the present embodiment, lighting device 10 can turn card slot with screw locking, mechanical snap, spring bearer plate, hand Or optical shield 230 is assembled on reflection base 240 by the modes such as combinations of the above, but the present invention is not in the above described manner Be limited, optical shield 230 can be also assembled on reflection base 240 via other suitable modes, e.g. magnetic, paste Etc..

In conclusion the embodiment of the present invention includes lens and optical shield, lens with optical module and lighting device Rotational symmetry or non-rotationally-symmetric first smooth shape, and another generation of lens and optical shield are generated with one of optical shield The smooth shape of the second of rotational symmetry.It therefore, can be via the combination of lens and optical shield to generate with optical module and lighting device The light shape needed may conform in the setting regulation of lighting device and suitable for a variety of different condition of road surface.In addition, of the invention Embodiment can be big compared to traditional lighting device via the combination of lens and optical shield with optical module and lighting device The design quantity of width reduction optical shield.

Although the present invention is disclosed as above with embodiment, however, it is not to limit the invention, any technical field Those skilled in the art, without departing from the spirit and scope of the present invention, when can make some changes and embellishment, therefore of the invention Protection scope when view appended claims institute defender subject to.

Claims

1. one kind matches optical module, to control the light distribution of light source, which is characterized in that described to include: with optical module

Lens, with the first incidence surface, relative to the first light-emitting surface of first incidence surface and positioned at first incidence surface Side containing groove, wherein the containing groove is to accommodate the light source；And

Optical shield covers the lens, and has opposite the second incidence surface and the second light-emitting surface, wherein described second enters light Face is between first light-emitting surface and second light-emitting surface, and second incidence surface has multiple subsurfaces, adjacent The multiple subsurface intersection relative to the multiple subsurface present turnover complexion,

Wherein, one of the lens and the optical shield generate rotational symmetry or non-rotationally-symmetric first smooth shape, and described Second smooth shape of another generation rotational symmetry of lens and the optical shield.

2. according to claim 1 match optical module, which is characterized in that second light-emitting surface is axisymmetricly.

3. according to claim 1 match optical module, which is characterized in that the multiple subsurface is around the optical shield Optical axis is in multilayer annular arrangement, and the optical shield generates the second smooth shape.

4. according to claim 1 match optical module, which is characterized in that the lens are being issued perpendicular to the light source The direction of the central axis of light has the first long axis, and the containing groove is at the center of the light issued perpendicular to the light source The direction of axis has the second long axis, and the direction of first long axis is different from the direction of second long axis, and the lens produce The raw non-rotationally-symmetric first smooth shape.

5. according to claim 4 match optical module, which is characterized in that first long axis is perpendicular to second long axis.

6. according to claim 4 match optical module, which is characterized in that first light-emitting surface is long perpendicular to described first Non- on the direction of axis is mirror symmetry, and it is mirror symmetry that the containing groove is non-on the direction of second long axis.

7. according to claim 1 match optical module, which is characterized in that the lens have longitudinally and width direction, First light-emitting surface has X-shape protrusion, and the X-shape protrusion is in the reference planes of the optical axis perpendicular to the lens The extending direction of orthographic projection tilted relative to the longitudinally and the width direction, first incidence surface, which has, to intersect Shape recess, the extending direction of orthographic projection of the X-shape recess in the reference planes is relative to the longitudinally and institute The inclination of width direction is stated, and the lens generate the described first smooth shape of rotational symmetry.

8. according to claim 1 match optical module, which is characterized in that the lens have longitudinally and width direction, First light-emitting surface has cross protrusion, and the cross protrusion is in the reference planes of the optical axis perpendicular to the lens The extending direction of orthographic projection be identical to the longitudinally and the width direction, first incidence surface has cross recessed It falls into, the extending direction of orthographic projection of the cross recess in the reference planes is identical to the longitudinally and the cross Wide direction, and the lens generate the described first smooth shape of rotational symmetry.

9. according to claim 1 match optical module, which is characterized in that first incidence surface of the lens and described the One light-emitting surface is all axisymmetricly.

10. it is according to claim 9 match optical module, which is characterized in that the side of first incidence surface with closer to The vertex of first light-emitting surface and Yue Dou Qiao.

11. according to claim 1 match optical module, which is characterized in that the optical shield has longitudinally and width Direction, the optical shield are mirror symmetry in the longitudinally, and in the width direction be non-mirror symmetry, and it is described Optical shield generates the non-rotationally-symmetric first smooth shape.

12. according to claim 11 match optical module, which is characterized in that the subsurface is mirror on the longitudinally To symmetrical and be non-mirror to symmetrical multilayer annular arrangement on the width direction.

13. according to claim 12 match optical module, which is characterized in that the close optics of the multilayer annular arrangement Several layers of the center of outer cover are in heart-shaped cyclic annular.

14. according to claim 1 match optical module, which is characterized in that reflection base is further included, wherein the light source, institute It states lens and the optical shield is configured on the reflection base.

15. according to claim 14 match optical module, which is characterized in that the reflection base has to be sent out with the light source The reflecting surface of the first angle of center axle clamp of light out, the light that the light source is issued is in the maximum after the lens Intensity direction and the central axis have the second angle, and second angle is less than or equal to first angle.

16. according to claim 14 match optical module, which is characterized in that the reflection base has flange, the optics Cover on outside on the direction for being parallel to the central axis for the light that the light source is issued with a thickness of H, the optical shield is close to institute State the bottom of light source to the flange the top far from the light source in the distance on the direction of the parallel central axis be T, And H≤T.

17. according to claim 14 match optical module, which is characterized in that the reflection base has flange, the optics Cover on outside on the direction for being parallel to the central axis for the light that the light source is issued with a thickness of H, the optical shield is close to institute State the bottom of light source to the flange the top far from the light source in the distance on the direction of the parallel central axis be T, And H > T.

18. according to claim 1 match optical module, which is characterized in that the optical shield is being parallel to the light source institute On the direction of the central axis of the light of sending with a thickness of H, the optical shield is outer on the direction perpendicular to the central axis Diameter is D, and D/H is fallen in the range of 0.5 to 25.

19. according to claim 1 match optical module, which is characterized in that in the direction of the optical axis around the optical shield The intersection shape in the form of ridges of upper adjacent subsurface.

20. according to claim 1 match optical module, which is characterized in that at the edge from the optical shield to the light The intersection for learning subsurface adjacent on the direction at the center of outer cover has segment difference.