CN102317676A - Illumination device and illumination apparatus employing this illumination device - Google Patents
Illumination device and illumination apparatus employing this illumination device Download PDFInfo
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- CN102317676A CN102317676A CN201080007899XA CN201080007899A CN102317676A CN 102317676 A CN102317676 A CN 102317676A CN 201080007899X A CN201080007899X A CN 201080007899XA CN 201080007899 A CN201080007899 A CN 201080007899A CN 102317676 A CN102317676 A CN 102317676A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
- F21S8/08—Lighting devices intended for fixed installation with a standard
- F21S8/085—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light
- F21S8/086—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light with lighting device attached sideways of the standard, e.g. for roads and highways
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/007—Array of lenses or refractors for a cluster of light sources, e.g. for arrangement of multiple light sources in one plane
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
- F21W2131/10—Outdoor lighting
- F21W2131/103—Outdoor lighting of streets or roads
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- 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
- F21Y2105/00—Planar light sources
- F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
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- 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]
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- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention provides an illumination device and an illumination apparatus employing this illumination device. Disclosed is the illumination device provided with: light sources (12) and an optical member (14) having an input face and output face for controlling the optical distribution characteristics of light emitted from these light sources (12). An input side lens surface (16) or output side lens surface (18) is formed on the input face and/or output face. The optical axes of the light sources (12) are arranged offset from the geometrical central axis of the input side lens face (16) and/or output side lens face (18) that are formed on the input side face or output side face. In this way, an illumination apparatus can be realised that has excellent design characteristics, by controlling the optical distribution characteristics in two directions simply by means of optical members, and an illumination apparatus can be provided having a high degree of horizontal surface illumination and vertical surface illumination.
Description
Technical field
The present invention relates on horizontal illumination and vertical illuminance, all have the lighting device such as antitheft lamp, street lamp, street lamp of high illumination and the lighting apparatus that in this lighting device, uses.
Background technology
For ensure traffic safety, delinquency prevention etc., most lighting devices such as antitheft lamp are arranged on outdoor.The illuminating effect of antitheft lamp aspect delinquency prevention hopes to reach: (1) can be seen 4m people's at a distance general appearance clearly, and (2) can be seen 4m pedestrian's at a distance movement and posture clearly.In order to satisfy said illuminating effect; As illumination benchmark separate provision be: the mean value of the horizontal illumination on (1) road surface more than the 5.0lx, the minimum of a value of vertical illuminance more than 1.0lx, the mean value of the horizontal illumination on (2) road surface more than the 3.0lx, the minimum of a value of vertical illuminance is more than 0.51x.
In addition, hope not make the output of light source to become big, just can will satisfy expanded range to the farther distance of above-mentioned illumination benchmark as lighting devices such as antitheft lamps.Thus, can be energy-conservation and reduce arranged illumination devices quantity, and can ensure traffic safety effectively or delinquency prevention.
In general, lighting device such as antitheft lamp etc. is 4.5m highly to be provided with mostly, the mode that the interval is about 35m is set is installed on electric pole or the pillar.In this case, when spending the vertical lower of lighting device as vertical angle 0, be the locational vertical illuminance of 1.5m from the height apart from road of proximity illumination device, confirm by luminosity from the cardinal principle horizontal direction of 85 ° of the vertical angles of lighting device.Because minimizings that square be inversely proportional to of illumination and distance, so if not the light distribution characteristic of illumination apparatus control make horizontal direction substantially the luminosity change greatly, then be difficult to be met the illumination of above-mentioned illumination benchmark.
Patent documentation 1 (the open communique spy of Japan Patent opens (on November 30th, 2000 is open) 2000-331504 number) and patent documentation 2 (the open communique spy of Japan Patent opens (on February 26th, 2004 is open) 2004-63174 number) have been put down in writing the method for the light distribution characteristic that is used to control lighting device.In the lighting device of said patent documentation 1 and patent documentation 2 records; Formation is called as the reflecting member of speculum; And on the cover of lighting device, form prism, control light distribution characteristic through these speculums, prism are carried out suitable combination, thereby make the luminosity of horizontal direction become big.
Yet above-mentioned conventional illuminating device has following problem.
In recent years, consider, developed the lighting device of a lot of employing led light sources from power saving, the angle that increases the service life.In the lighting device that adopts led light source, in order to ensure the light beam that ligthing paraphernalia sends, arrange a plurality of led light sources mostly and use, thereby increased the light source area.
In this case, in order to increase the ratio of light source area with respect to the area of speculum, prism, make light to speculum, prism irradiation from various directions.
Because the shape set of speculum, prism becomes will be with reflecting and/or reflect to specific angle with the light of specific angle incident, so if light from various direction incidents, then is difficult to set the shape of speculum, prism.
Therefore, be difficult to obtain make the good lighting device of optical characteristics through the control light distribution characteristic.In addition, in order to address the above problem, under the situation that the area change that makes speculum, prism ratio big, the light source area diminishes, produce the problem that lighting device is maximized again.
In addition, in the lighting device on being arranged at road, importantly with road direction of advance two planes parallel with width on control luminous intensity distribution.But being shaped as to a direction of the prism of putting down in writing in the prior art extended, thereby for example has following problem: the light distribution characteristic that promptly can only control planes such as plane parallel with the road direction of advance.
In order to control the light distribution characteristic of both direction, must also make up the use speculum, thereby increase number of components.In addition, though the casing that the utilizes lighting device method as speculum is arranged, just can not freely design casing like this.
Summary of the invention
In order to address the above problem, the present invention provides a kind of lighting apparatus, it is characterized in that comprising: light sources such as LED or LD; And transparent optical component; With respect to the light that goes out from said light source irradiation; Have the plane of incidence and exit facet; On at least one of the said plane of incidence or said exit facet, be formed with lens, the optical axis of said light source is configured to and is formed on the geometric center axle offset of at least one side's on the said plane of incidence or the said exit facet lens.
According to foregoing invention, because the optical axis of said light source and said lens squints each other, so can be that light distribution characteristic is controlled at the center with the position of the optical axis direction that departs from light source.That is the direction that, light is preferentially tilted towards the optical axis direction with light source spreads or gathers.
Its result through in the lighting device of light source configuration forming V-shape etc., lighting apparatus of the present invention being installed, can make the light diffusion effectively.
In addition, in lighting device of the present invention, with matrix-like, be a plurality of said lighting apparatus of arranging such as planar, form said lighting device.
According to foregoing invention, can realize the lighting device of corresponding various uses compactly.
According to lighting apparatus of the present invention and lighting device, through an optical component, just can control two axial light distribution characteristics, make the light distribution characteristic optimization.Therefore, speculum etc., the good lighting device of design can be do not used, and the lighting device of good horizontal face illumination and vertical illuminance can be obtained having.
In addition, according to lighting apparatus of the present invention, because the geometrical central axis of said light source and said lens squints each other, so can make light preferentially towards the direction diffusion of tilting with the normal to a surface direction that disposes light source or gather.Its result through this lighting apparatus is installed, can make the light diffusion, so can access the better lighting device of light distribution characteristic effectively in the lighting device of tilted configuration such as light source is V-shaped.
In addition; Even make having a plurality of said light sources under the big situation of light source area change; Because lighting apparatus of the present invention is compact, thus can not cause having installed the lighting device maximization of lighting apparatus of the present invention, and can obtain the good lighting device of light distribution characteristic.
Description of drawings
Fig. 1 is the figure that is used to explain the lighting apparatus of first embodiment of the invention.
Fig. 2 is the figure that is used to explain an example of the lighting device that has adopted above-mentioned lighting apparatus.
Fig. 3 is expression with the figure of the analog result of the light distribution characteristic of the analog result of the luminaire applications of first embodiment light distribution characteristic when the lighting device of Fig. 2 and comparative example.
Fig. 4 is the figure that is used to explain the lighting apparatus of second embodiment of the invention.
Fig. 5 is expression with the figure of the analog result of the luminaire applications of second embodiment light distribution characteristic when the lighting device of Fig. 2.
Description of reference numerals
10 lighting apparatus
12 led light sources
13 substrates
14 optical components
16 planes of incidence
18 exit facets
22 column concavees lens
24 column convex lens
26 ellipsoid concavees lens
28 ellipsoid convex lens
50 lighting devices
The geometrical central axis of S1 column concavees lens 22
The geometrical central axis of S2 column convex lens 24
The geometrical central axis of S3 ellipsoid concavees lens 26
The geometrical central axis of S4 ellipsoid convex lens 28
The optical axis of J1 led light source 12
The specific embodiment
Utilize following embodiment that the present invention is more specified below.
In addition, in following explanation, the member of expression identical function and effect adopts identical Reference numeral, and has omitted explanation.
(first embodiment)
Fig. 1 is the figure of lighting apparatus 10 summaries of explanation first embodiment, and (a) of Fig. 1 is the stereogram of this lighting device, and (b) of Fig. 1 is the A-A cutaway view of Fig. 1 (a), and (c) of Fig. 1 is the B-B cutaway view of Fig. 1 (a).
In addition, in following embodiment, though adopt LED to describe as light source, the present invention also can adopt other light sources such as semiconductor laser except LED.
Shown in the (a) and (b) of Fig. 1, (c); Optical component 14 is formed with column concavees lens 22 on the plane of incidence 16 relative with led light source 12; And on exit facet 18, be formed with column convex lens 24, this exit facet 18 is the surfaces with the said plane of incidence 16 opposite sides.
Relevant with the incident of light with outgoing axially as the Z axle, the generatrix direction of said column concavees lens 22 be set at the Y axle, sub-line direction setting is the X axle.In addition, the generatrix direction of column convex lens 24 is the X axle, and sub-line direction is the Y axle.
The curvature of the generatrix direction of column concavees lens 22 is 0, and the curvature of sub-line direction is less than 0, and lens make light produce the ability difference of refraction on X-direction, Y direction.
Equally, the curvature of the generatrix direction of column convex lens 24 is 0, and the curvature of sub-line direction is greater than 0, and lens make light produce the ability difference of refraction in X-direction, Y direction.
In addition, the generatrix direction of the generatrix direction of column concavees lens 22 and column convex lens 24 is perpendicular to one another.
In this embodiment; Led light source 12 forms on as the substrate 13 of printed circuit board (PCB) etc. rectangular; With the intersection point of said column concavees lens 22 and said column convex lens 24 respectively with led light source 12 mode one to one; Arrange a plurality of column concavees lens 22 and a plurality of column convex lens 24, thereby form the lighting apparatus 10 of this embodiment.
In addition, with led light source 12 facing surfaces on be formed with under the situation of column concavees lens 22, between led light source 12 and optical component 14, be formed with the space.
Therefore, column concavees lens 22 are used for not only realizing that the present invention controls the primary and foremost purpose of light distribution characteristic, also have the effect that prevents to cause because of led light source 12 heatings optical component 14 deteriorations.
In addition; Though through making as keeping certain distance between the plane of incidence 16 of optical component 14 lower surfaces and the led light source 12; Also can prevent optical component 14 deteriorations; But under the situation that as this embodiment, is matrix-like use led light source 12, owing to the light that irradiates from led light source 12 shines the adjacent lenses easily, so be difficult to control light distribution characteristic.
Because limited in the plane of incidence 16 and the distance between the led light source 12 as optical component 14 lower surfaces, thus through being set, column concavees lens 22 make said space become big, thus can prevent to cause optical component 14 deteriorations because of led light source 12 heatings.
Shown in Fig. 1 (b), column concavees lens 22 are set the shape that can make the light diffusion for, and the light that irradiates from led light source 12 spreads in the XZ plane through column concavees lens 22.
In addition, in the first embodiment, as an example, the section shape of the sub-line direction of column concavees lens 22 is oval, and this oval-shaped major semiaxis is that the distance between 6.5mm, two focuses is 8.0mm.
In addition, the optical axis J1 of the geometrical central axis S1 of column concavees lens 22 and led light source 12 skew each other on as the X-direction of the generatrix direction of column convex lens 24, the optical axis J1 of this led light source 12 is with parallel as the Z-direction of intensity distributions central shaft.
Thus, 10 directions that squint with respect to the optical axis J1 direction of led light source 12 of the lighting apparatus of this embodiment can make the light diffusion as central shaft.In other words, the optical axis J1 through making led light source 12 and the geometrical central axis S1 of column concavees lens 22 squint along the generatrix direction of column convex lens 24 each other, can with deflection-directions X or+mode of directions X makes the light diffusion.
(c) of Fig. 1 is the YZ plane of expression as the B-B section of the optical component 14 shown in Fig. 1 (a).
Column convex lens 24 are set the shape that light is gathered for, from the light that led light source 12 irradiates, gather in the YZ plane through column convex lens 24.
In addition, in the first embodiment, as an example, the section shape of the sub-line direction of column convex lens 24 is circular, and this circular radius is 6mm.In addition, the optical axis J1 of led light source 12 is consistent with the geometrical central axis S2 of column convex lens 24.
In addition; Column convex lens 24 also can be identical with the situation of above-mentioned column concavees lens 22; The geometrical central axis S2 through making column convex lens 24 and the optical axis J1 of led light source 12 skew each other on as the Y direction of the generatrix direction of column concavees lens 22, thus make light towards-Y direction or+the Y direction gathers.
Therefore, when wanting to be controlled at the direction of light of gathering in the YZ plane, also can set the optical axis J1 of led light source 12 and the geometrical central axis S2 of column convex lens 24 for skew each other.
In addition; Distances between the optical axis J1 of the geometrical central axis S2 of the geometrical central axis S1 of the shape of column concavees lens 22 and column convex lens 24 and column concavees lens 22, column convex lens 24 and led light source 12 etc. can consider that necessary light distribution characteristic, use optics parsing software wait and draws.
In addition, except using acrylic resin,, for example use polystyrene resin, methacryl resin, polycarbonate resin or glass etc. as the material of optical component 14 so long as the good and material that transmission coefficient is big of iuuminting property gets final product in the visible region.
In the lighting apparatus 10 of above-mentioned record,, the light that irradiates from led light source 12 is carried out distribution controls through being formed on the column concavees lens 22 and column convex lens 24 on the optical component 14.
In addition, because the column concavees lens 22 that are formed on the optical component 14 are corresponding one by one with led light source 12 respectively with column convex lens 24,, thereby can realize lighting device miniaturization and slimming so the size of optical component 14 and light source 12 is measure-alike.
Fig. 2 has represented to use the sketch map of the lighting device 50 of this embodiment lighting apparatus 10.
In lighting device 50, identical in order to make light beam of light source with the lighting device that has adopted other light sources such as fluorescent lamp, on substrate 13, a plurality of led light sources 12 are configured to matrix-like.
In addition, in this embodiment, as an example; Be that spacing is arranged 8 row with led light source 12 with 11mm along X-direction in the lighting apparatus 10; Along Y direction is that spacing is arranged 28 row with 8.5mm, on the XZ plane, observes, and uses two above-mentioned lighting apparatus 10 with V-shaped mode.
The number of led light source 12 adds up to 448, and light beam of light source adds up to 2800lm.In addition, with two lighting apparatus, 10 configuration forming V-shapes, making its angle is 120 °.In addition, the number of led light source 12 and light beam can come suitably to change setting according to the needed beam size of lighting device.In addition, the angle of lighting apparatus 10 also can wait and suitably change setting according to lighting device needs casing that design, not shown, lampshade.
In this lighting device 50, with lighting apparatus 10 configuration forming V-shapes, this lighting apparatus 10 is arranged with a plurality of led light sources 12 with rectangular on substrate 13.In this case, make the light that irradiates from each lighting apparatus 10 to-X-direction ,+the X-direction diffusion, through said light is made up, can make the light that irradiates from lighting device effectively to ± X-direction diffusion.
The result of the light distribution characteristic of (a) expression simulation first embodiment lighting device 50 of Fig. 3.Light distribution characteristic when (b) expression of Fig. 3 does not have optical component 14 as comparative example.
In addition, simulated conditions are following: consider actual installation in the form in last times such as road, be 20 °, promptly be that turning cylinder tilts 20 ° lighting device 50 is set with the X axle with the elevation angle.
Because the lighting device 50 of this embodiment shown in Figure 2 spreads light through the column concavees lens 22 of optical component 14 on the XZ plane; Compare under the situation of 90 ° of one side as wide-angle one side with 0 ° of one side at handle, the luminosity in the time of can finding out this embodiment wide-angle is greater than comparative example.In addition, because the column convex lens 24 through optical component 14 are gathered light on the YZ plane, show as and gather so compare the light distribution characteristic of this embodiment with comparative example.
In addition, be arranged under the situation on the road result of its illumination of table 1 expression simulation at lighting device 50 with first embodiment.This numerical value when comparative example is represented not have optical component 14.
Table 1
The analysis result of illumination
| First embodiment | Comparative example | |
| Horizontal illumination (on average) | 7.40lx | 5.08lx |
| Vertical illuminance (minimum of a value) | 0.60lx | 0.20lx |
In addition, the horizontal illumination shown in the table 1 is the numerical value that makes after the horizontal illumination equalization on road surface, and vertical illuminance is that the height of road central authorities is the minimum of a value of the vertical illuminance of 1.5m.In addition, the set-up mode of lighting device 50 is following: make XZ plane shown in Figure 1 parallel with the direction of advance of road and highly for 4.5m, be spaced apart 35m.
In addition, identical with the simulation of light distribution characteristic, be 20 ° with the elevation angle lighting device shown in Figure 2 50 is set.In addition, road width is 5m.
Shown in Fig. 3 (a),, can realize bigger illumination so compare with comparative example because the lighting device 50 of first embodiment makes the light distribution characteristic optimization.In addition; Can be met the result of said illumination benchmark; Said illumination benchmark is: (1) can be seen 4m people's at a distance general appearance (mean value of horizontal illumination more than the 5.0lx, the minimum of a value of vertical illuminance is more than 1.0lx) clearly, and (2) can be seen 4m pedestrian's at a distance movement and posture (mean value of horizontal illumination more than the 3.0lx, the minimum of a value of vertical illuminance is more than 0.5lx) clearly.
As stated, in the lighting device 50 of first embodiment, only, just can control the light distribution characteristic on two planes, make the light distribution characteristic optimization through having the optical component 14 of column concavees lens 22 and column convex lens 24.Therefore, do not make the output of led light source 12 become big, just can obtain having lighting device 50 than big flood planar illumination and vertical illuminance.Thus, can realize the quantity that is provided with of energy-conservationization and minimizing lighting device 50.
In addition, owing to need not use casing etc. as speculum, so can obtain the good lighting device of design 50.
In addition; Even under the situation of the led light source 12 that adopts the bigger matrix-like of light source area; Owing to,, just can access the good lighting device of light distribution characteristic 50 so lighting device 50 is maximized through forming lens with each led light source 12 corresponding mode.
In addition, in the first embodiment, also can have casing and lampshade of the power supply unit that is used for fixing lighting device 50, led light source 12 etc.When waiting without when using lighting device 50, can protect led light source 12 and optical component, make their can be rainproof, dust protection etc.
In addition, the lighting apparatus 10 of above-mentioned first embodiment and the lighting device 50 that has adopted said lighting apparatus 10 can be widely used in antitheft lamp, street lamp, street lamp, park and throw light on outward and other illuminations with the room of lamp etc.
(second embodiment)
Then, based on Fig. 4 second embodiment of lighting device of the present invention is described.
Shown in the (a) and (b) of Fig. 4, (c), it is different with the shape of the optical component 14 of the first embodiment lighting apparatus 10 that second embodiment and first embodiment different only are.Therefore, in second embodiment, the part identical with said first embodiment adopts identical Reference numeral, and mainly the difference with described first embodiment described.
(a) of Fig. 4 is the figure of optical component 14 shapes of expression second embodiment.In second embodiment, on optical component 14 and led light source 12 facing surfaces, be formed with ellipsoid concavees lens 26, with the surface of the opposite side of led light source 12 facing surfaces on be formed with ellipsoid convex lens 28.In addition, ellipsoid concavees lens 26 and ellipsoid convex lens 28 with respectively with led light source 12 mode one to one, be arranged with a plurality of lens.
At this, shown in Fig. 4 (a), the short-axis direction of ellipsoid convex lens 28 is consistent with the Y direction of lighting apparatus 10.
In addition, curvature is all different on ellipsoid concavees lens 26 and ellipsoid convex lens 28 each comfortable X axle and the Y axle, and said Y axle is the axle vertical with said X axle.That is, on X-direction and Y direction, to make light produce the ability of refraction different for lens of the present invention.
In addition, in second embodiment, as an example, two distances between the focus that are shaped as of ellipsoid concavees lens 26 are that 0mm, major semiaxis are the ellipsoid of 5mm, are spheroid.In addition, ellipsoid convex lens 28 be shaped as ellipsoid, distance is 6.5mm for 8mm, major semiaxis between this ellipsoidal focus.
(b) of Fig. 4 is the figure of expression as the A-A section on the XZ plane of the lighting apparatus 10 shown in Fig. 4 (a).The shape of the section of the ellipsoid concavees lens 26 on XZ plane makes the light diffusion.
Therefore, the light that irradiates from led light source 12 spreads in the XZ plane through ellipsoid concavees lens 26.In addition, the geometrical central axis S4 of the optical axis J1 of led light source 12 and ellipsoid convex lens 28 squints on the X-direction as the long axis direction of ellipsoid convex lens 28.
The direction that can squint with the geometrical central axis S4 direction with respect to ellipsoid convex lens 28 thus, is that the center makes the light diffusion.In other words, the optical axis J1 through making led light source 12 and the geometrical central axis S4 of ellipsoid convex lens 28 skew each other on as the X-direction of the long axis direction of ellipsoid convex lens 28, can make light to-directions X or+the directions X diffusion.
In addition, make the geometrical central axis S3 of ellipsoid concavees lens 26 consistent with the optical axis J1 of led light source 12.This is in order between led light source 12 and optical component 14, to form the space through ellipsoid concavees lens 26, thereby prevents to cause optical component 14 deteriorations because of led light source 12 heatings.
In second embodiment owing to only also can control light distribution characteristic through ellipsoid convex lens 28, so the shape of ellipsoid concavees lens 26 and configuration focus on preventing above-mentioned optical component 14 deteriorations.In addition, under the high situation of the hear resistance of optical component 14, also can not form ellipsoid concavees lens 26.In this case, owing to make optical component 14 easily, so be preferred.
In addition, also can suitably set the shape and the configuration of ellipsoid concavees lens 26, and itself and 28 combinations of ellipsoid convex lens are carried out distribution controls.In this case, because the expansion of the free degree of the light distribution characteristic that can realize, so be preferred.
(c) of Fig. 4 is that the optical component 14 shown in (a) of presentation graphs 4 is at the B-B on YZ plane cutaway view.The shape of the ellipsoid convex lens 28 on YZ plane is gathered light.Therefore, the light that irradiates from led light source 12 is gathered in the YZ plane through ellipsoid convex lens 28.
In addition, in the YZ plane, the optical axis J1 of led light source 12 is consistent with the geometrical central axis S4 of ellipsoid convex lens 28.
In addition, in the YZ plane, the optical axis J1 that also can be through making led light source 12 and the geometrical central axis S4 of ellipsoid convex lens 28 skew each other on as the Y direction of the short-axis direction of ellipsoid convex lens 28, make light to-Y direction or+the Y direction gathers.
Therefore, when wanting the direction of light that inner control is gathered on the YZ plane, the optical axis J1 of led light source 12 and the geometrical central axis S3 of ellipsoid concavees lens 26 are squinted each other.
In addition; Distances between the optical axis J1 of the geometrical central axis S4 of the geometrical central axis S3 of the shape of ellipsoid concavees lens 26 and ellipsoid convex lens 28 and ellipsoid concavees lens 26, ellipsoid convex lens 28 and led light source 12 etc. can consider that necessary light distribution characteristic, use optics parsing software wait and draws.
In the lighting apparatus 10 of above-mentioned record, ellipsoid concavees lens 26 and ellipsoid convex lens 28 through constituting optical component 14 carry out distribution controls to the light that irradiates from led light source 12.
The section shape on the XZ plane of ellipsoid convex lens 28 has the function that makes the light diffusion, and the section shape on YZ plane has the function that light is gathered.
Therefore, only through optical component 14, just can independently control the light distribution characteristic on XZ plane and these two planes, YZ plane.In addition; Because the ellipsoid concavees lens 26 that are formed on the optical component 14 are corresponding one by one with led light source 12 respectively with ellipsoid convex lens 28; So the size of the size of optical component 14 and led light source 12 is basic identical, thereby can realize the miniaturization and the slimming of lighting device 50.
That Fig. 5 representes is identical with first embodiment, the result of analog ligand light characteristic when the lighting apparatus 10 of second embodiment is applied to the lighting device 50 of Fig. 2 form.In addition, simulated conditions etc. are identical with first embodiment.
Because the section of the lighting device 50 of second embodiment long axis direction through being formed on the ellipsoid convex lens 28 on the optical component 14; Light is spread on the XZ plane; So compare under the situation of 90 ° of one side as wide-angle one side with 0 ° of one side at handle, the luminosity in the time of can finding out wide-angle is greater than comparative example.In addition, because the section of the short-axis direction through ellipsoid convex lens 28 is gathered light on the YZ plane, so can find out that compare its light distribution characteristic shows as and gather with comparative example.
In addition, be arranged under the situation on the road result of its illumination of table 2 expression simulation at lighting device 50 with second embodiment.This numerical value when representing not have optical component 14 as comparative example.Simulated conditions etc. are identical with first embodiment.
Table 2
The analysis result of illumination
| Second embodiment | Comparative example | |
| Horizontal illumination (on average) | 7.06lx | 5.08lx |
| Vertical illuminance (minimum of a value) | 0.85lx | 0.20lx |
Shown in the curve of Fig. 5,, can realize bigger illumination so compare with comparative example because the lighting device 50 of second embodiment makes the light distribution characteristic optimization.In addition; Can be met the result of said illumination benchmark; Said illumination benchmark is: (1) can be seen 4m people's at a distance general appearance (mean value of horizontal illumination more than the 5.0lx, the minimum of a value of vertical illuminance is more than 1.0lx) clearly, and (2) can be seen 4m pedestrian's at a distance movement and posture (mean value of horizontal illumination more than the 3.0lx, the minimum of a value of vertical illuminance is more than 0.5lx) clearly.
As stated, in the lighting device 50 of the lighting apparatus 10 that has adopted second embodiment, only, just can control the light distribution characteristic on two planes, make the light distribution characteristic optimization through having the optical component 14 of ellipsoid concavees lens 26 and ellipsoid convex lens 28.
Therefore, do not make the output of led light source 12 become big, just can obtain having lighting device 50 than big flood planar illumination and vertical illuminance.Thus, can realize the quantity that is provided with of energy-conservationization and minimizing lighting device 50.
In addition, owing to need not use casing etc. as speculum, so can obtain the good lighting device of design 50.
In addition; Even under the situation of the led light source 12 that adopts the bigger matrix-like of light source area; Owing to,, just can access the good lighting device of light distribution characteristic 50 so lighting device 50 is maximized through forming lens with each led light source 12 corresponding mode.
In addition, in second embodiment, can also have casing and lampshade of the power supply unit that is used for fixing lighting device 50, light source etc.When waiting without when using lighting device 50, can protect light source and optical component, make their can be rainproof, dust protection etc., thereby can prevent that lighting device 50 from breaking down etc.
In addition, the lighting apparatus 10 of above-mentioned second embodiment and the lighting device 50 that has adopted said lighting apparatus 10 can be widely used in outside antitheft lamp, street lamp, street lamp, the park room with lamp etc. and throw light on and other illuminations.
As stated; In the lighting apparatus of the present invention; On at least one of the said plane of incidence and said exit facet, be formed with lens; When the optical axis direction of lens during as Z-direction, it is different that said lens make light produce the ability of refraction on X-direction and Y direction, and said Y direction is the direction vertical with said X-direction.
In addition; In the lighting apparatus of the present invention; The different lens of refracting power are column concavees lens and column convex lens on said X-direction and Y direction; Said column convex lens are formed on and are formed with on the surperficial facing surfaces of said column concavees lens, and the bus of the bus of said column concavees lens and said column convex lens intersects vertically.
According to lighting apparatus of the present invention, the configuration that is perpendicular to one another of said column concavees lens and said column convex lens.The section shape of the sub-line direction through controlling said column concavees lens and said column convex lens respectively can be distinguished the light distribution characteristic of the independent control section parallel with the sub-line direction of lens.
In addition, column concavees lens and column convex lens do not need 3 high processing unit (plant) of price, thereby can reduce die cost.
In addition, in the lighting apparatus of the present invention, said X axle is ellipsoid concavees lens or ellipsoid convex lens with different lens of refracting power on the Y axle.
Through controlling the section shape of said ellipsoidal long axis direction and short-axis direction, can independently control the light distribution characteristic of the section parallel with said long axis direction or said short-axis direction.
(industrial applicibility)
The present invention can be widely used in lighting apparatus that antitheft lamp, street lamp, street lamp, park uses without with lamp etc. and the various lighting devices that adopted said lighting apparatus.
Claims (5)
1. lighting apparatus is characterized in that comprising:
Light source; And
Optical component with respect to the light that goes out from said light source irradiation, has the plane of incidence and exit facet,
On at least one of the said plane of incidence or said exit facet, be formed with lens,
The optical axis of said light source is configured to and is formed on the geometric center axle offset of at least one side's on the said plane of incidence or the said exit facet lens.
2. lighting apparatus according to claim 1 is characterized in that, at least one side's said lens refracting power on X-direction and Y direction is different.
3. lighting apparatus according to claim 2 is characterized in that,
The different lens of refracting power are column concavees lens and column convex lens on said X-direction and Y direction, and said column convex lens are formed on and are formed with on the surperficial facing surfaces of said column concavees lens,
The bus of the bus of said column concavees lens and said column convex lens intersects vertically.
4. lighting apparatus according to claim 2 is characterized in that, the different lens of refracting power are ellipsoid concavees lens or ellipsoid convex lens on said X-direction and Y direction.
5. a lighting device is characterized in that, uses any described lighting apparatus in the claim 1～4.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009-033712 | 2009-02-17 | ||
| JP2009033712A JP4621779B2 (en) | 2009-02-17 | 2009-02-17 | LIGHTING DEVICE AND LIGHTING DEVICE USING THE LIGHTING DEVICE |
| PCT/JP2010/000977 WO2010095424A1 (en) | 2009-02-17 | 2010-02-17 | Illumination device and illumination apparatus employing this illumination device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102317676A true CN102317676A (en) | 2012-01-11 |
Family
ID=42633712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201080007899XA Pending CN102317676A (en) | 2009-02-17 | 2010-02-17 | Illumination device and illumination apparatus employing this illumination device |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2400206A4 (en) |
| JP (1) | JP4621779B2 (en) |
| CN (1) | CN102317676A (en) |
| WO (1) | WO2010095424A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104396012A (en) * | 2012-05-02 | 2015-03-04 | 贺利氏特种光源有限责任公司 | Luminaire with leds and cylindrical lens |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5490028B2 (en) * | 2011-01-19 | 2014-05-14 | 三菱電機株式会社 | Optical lens and illumination device |
| KR101847939B1 (en) * | 2011-03-08 | 2018-04-11 | 삼성전자주식회사 | Luminous element module |
| FR2983559A1 (en) * | 2011-12-05 | 2013-06-07 | Fred & Fred | LIGHT ELEMENT |
| KR101990339B1 (en) | 2012-03-30 | 2019-10-01 | 루미리즈 홀딩 비.브이. | Pre-rotated overmolded bidirectional spreading lens for stretched leadframe architecture |
| WO2013153495A1 (en) | 2012-04-11 | 2013-10-17 | Koninklijke Philips N.V. | Lighting methods and apparatus with selectively applied face lighting component |
| WO2018147325A1 (en) * | 2017-02-09 | 2018-08-16 | 株式会社アクアバンク | Beverage sterilization unit and drinking water supply device equipped with same |
| JP7282527B2 (en) * | 2019-01-18 | 2023-05-29 | 株式会社小糸製作所 | Aircraft lighting fixture |
| WO2020169383A1 (en) * | 2019-02-21 | 2020-08-27 | Signify Holding B.V. | Lighting system with constant illuminance dimming |
| JP7486980B2 (en) * | 2020-02-28 | 2024-05-20 | キヤノン株式会社 | Light-emitting device, display device, exposure system, and display/imaging device |
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- 2010-02-17 EP EP10743554A patent/EP2400206A4/en not_active Withdrawn
- 2010-02-17 WO PCT/JP2010/000977 patent/WO2010095424A1/en active Application Filing
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| CN104396012A (en) * | 2012-05-02 | 2015-03-04 | 贺利氏特种光源有限责任公司 | Luminaire with leds and cylindrical lens |
| TWI495826B (en) * | 2012-05-02 | 2015-08-11 | 賀利氏諾伯燈具公司 | Lamp having leds and cylinder lens |
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| CN104396012B (en) * | 2012-05-02 | 2018-12-04 | 贺利氏特种光源有限责任公司 | Illuminator with LED and cylindrical lens |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2400206A1 (en) | 2011-12-28 |
| EP2400206A4 (en) | 2012-10-17 |
| JP4621779B2 (en) | 2011-01-26 |
| JP2010192189A (en) | 2010-09-02 |
| WO2010095424A1 (en) | 2010-08-26 |
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Application publication date: 20120111 |