CN102725581B - LED illumination utensil - Google Patents
LED illumination utensil Download PDFInfo
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- CN102725581B CN102725581B CN201180007553.4A CN201180007553A CN102725581B CN 102725581 B CN102725581 B CN 102725581B CN 201180007553 A CN201180007553 A CN 201180007553A CN 102725581 B CN102725581 B CN 102725581B
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- parabolic
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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
- F21V7/00—Reflectors for light sources
- F21V7/04—Optical design
- F21V7/06—Optical design with parabolic curvature
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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
- F21V7/00—Reflectors for light sources
- F21V7/0083—Array of reflectors for a cluster of light sources, e.g. 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
- F21V7/00—Reflectors for light sources
- F21V7/10—Construction
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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
- F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
- F21S2/005—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction of modular construction
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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
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/14—Adjustable mountings
- F21V21/30—Pivoted housings or frames
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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
- F21W2131/105—Outdoor lighting of arenas or the like
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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
- F21W2131/107—Outdoor lighting of the exterior of buildings
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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
- F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
- F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
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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]
Abstract
The invention provides a kind of can with sufficient brightness to the LED illumination utensil of the distant place object that throws light on.This LED illumination utensil possesses multiple LED(9) and by described LED(9) and there is the reflector element (5) of parabolic reflector (11), this parabolic reflector (11) is provided with in the face of above-mentioned LED(9 in bottom) top opening (33), above-mentioned parabolic reflector (11) is made respectively from the above-mentioned LED(9 of configuration) bottom be taken as the length of acquisition ultra-narrow angle luminous intensity distribution to the axial length of end openings (35), the diameter of above-mentioned end openings (35) is made to be taken as the diameter that 1/2 beam angle is 5 ~ 7 degree, and each above-mentioned parabolic reflector (11) is set in parallel to each other, above-mentioned LED(9 is configured in the equitant spacing of the exposure field leaving both set a distances (P) with the light launched from above-mentioned parabolic reflector (11) respectively) and each parabolic reflector (11), and on the segmentation parabolic reflector above-mentioned parabolic reflector (11) being divided into mutually same shape each other along major axis, form reflectance coating respectively, each segmentation parabolic reflector is joined together and forms above-mentioned parabolic reflector (11).
Description
Technical field
The present invention relates to the LED illumination utensil possessing LED in light source, particularly relate to the LED illumination utensil being suitable as the Projecting Lamp carrying out performing illumination with sufficient brightness to distant place object.
Background technology
Throw light in ligthing paraphernalia used in the performance for building etc., in its light source, extensively adopt the HID(High Intensity Discharge of easy high output, high-pressure discharge) lamp.In recent years, high life, light fixture can be paid close attention to as light source by small-sized, light-weighted LED, also constantly practical as ligthing paraphernalia in addition.
Namely be, carry out distribution controls with speculum in the ligthing paraphernalia of light source using HID lamp, in order to improve the speculum of utensil efficiency with regard to needing use to reflect this size of utilizing emitted light of HID lamp as far as possible, so utensil is large-scale, re-quantization.And using LED as in the ligthing paraphernalia of light source, LED is from the radiative structure of its surface of emission, so be all generally the structure of carrying out distribution controls at this surface of emission configuration lens.According to this structure, just can with whole utilizing emitted lights of the lens control LED of small-sized, light weight, just can make that utensil becomes small-sized, lightweight (for example, referring to patent document 1).
Prior art document
Patent document
Patent document 1: Japanese Patent Publication 2006-128217 publication
Summary of the invention
But, when irradiation object thing is in the distant place leaving more than tens of ~ thousands of rice, in order to throw light on to irradiation object with sufficient brightness, just need the LED adopting very high output in light source.In addition, as in the past, when employing lens in distribution controls, chromatic aberation will be there is on shadow surface.
In order to address this problem, can consider to use speculum in distribution controls, but when simple use speculum, whole utilizing emitted lights of uncontrollable light source compared with lens, therefore axle luminosity reduces and cannot guarantee desired brightness in the distance.Have employed in the ligthing paraphernalia in the past of HID lamp in light source, because this HID lamp self is larger, although therefore the axle luminosity deficiency that the light do not reflected completely because of speculum causes becomes remarkable, not enough by making HID lamp high output make up axle luminosity with the light beam increased on optical axis.But, in the led, also can not expect that the light beam of degree as that in HID lamp increases, so desired axle luminosity can not be obtained under the state using LED even if improve to export.
The present invention completes in view of said circumstances, and its object is to provides a kind of LED illumination utensil that can throw light on the object of sufficient brightness to a distant place.
The full content of the Japan application 2010-144308 of application on June 24th, 2010 is comprised in this description.
In order to achieve the above object, the invention provides a kind of LED illumination utensil, it is characterized in that, possess multiple LED and there is by above-mentioned LED the reflector element of parabolic reflector, this parabolic reflector is provided with the top opening in the face of above-mentioned LED in bottom, for above-mentioned parabolic reflector, the axial length from the bottom of the above-mentioned LED of configuration to end openings is made to be taken as the length that can obtain ultra-narrow angle luminous intensity distribution respectively, the diameter of above-mentioned end openings is taken as and makes 1/2 beam angle be the diameter of 5 ~ 7 degree, and each above-mentioned parabolic reflector is set in parallel to each other, above-mentioned LED and parabolic reflector is configured respectively in the equitant spacing of the exposure field leaving both set a distances with the light respectively from above-mentioned parabolic reflective surface launching, and on the segmentation parabolic reflector above-mentioned parabolic reflector being divided into mutually same shape each other along major axis, form reflectance coating respectively, each segmentation parabolic reflector is joined together and forms above-mentioned parabolic reflector.
The invention is characterized in addition, in above-mentioned LED illumination utensil, also possesses the lamp body case be made up of thermally conductive materials of the above-mentioned LED of storage and above-mentioned parabolic reflector, the end openings side of above-mentioned parabolic reflector is given prominence to from the front of this lamp body case, and the transparent radiator grille be made of resin is to cover this outstanding position.
According to the present invention, the axial length from the bottom of configuration LED to end openings is made to be taken as the length that can obtain ultra-narrow angle luminous intensity distribution, the diameter of end openings is taken as and makes 1/2 beam angle be the diameter of 5 ~ 7 degree, so parallel rays can be made to concentrate along the major axis of parabolic reflector and improve axle luminosity more in the past.And then the diffusion of distant place exposure field is suppressed, thus sufficient illumination can be maintained.
In addition, the length of this parabolic reflector more typically becomes very long, so be difficult to form uniform reflecting surface, but in the present invention, owing to forming reflectance coating respectively on the segmentation parabolic reflector this parabolic reflector being divided into mutually same shape each other along major axis, each segmentation parabolic reflector is joined together and forms parabolic reflector, so uniform parabolic reflector can be formed simply.
Accompanying drawing explanation
Fig. 1 is the stereogram of the surface structure of the LED illumination utensil represented involved by first embodiment of the present invention.
Fig. 2 is the figure of the structure representing LED illumination utensil, and (A) is front view, and (B) is the cross sectional view in the I-I cross section of (A).
Fig. 3 is the figure of the structure representing LED unit, and (A) is the top view of LED unit, and (B) amplifies the figure representing the LED that LED unit possesses, and (C) is the figure amplifying other examples representing this LED.
Fig. 4 is the figure of the structure representing reflector element, and (A) is front view, and (B) is top view, and (C) is side view.
Fig. 5 is the top view of segmentation parabolic reflector.
Fig. 6 is the stereogram of the surface structure of the LED illumination utensil represented involved by second embodiment of the present invention.
Fig. 7 is the front view of LED illumination utensil.
Fig. 8 is the side view of LED illumination utensil.
Fig. 9 is the stereogram observing LED illumination utensil from rear side.
Figure 10 is the figure of the configuration of the parabolic reflector represented involved by variation of the present invention, and (A) represents that multiple row configures, and (B) represents that concentric circles configures.
Detailed description of the invention
Below, be described with regard to embodiments of the present invention with reference to accompanying drawing.
< the 1st embodiment >
Fig. 1 is the stereogram of the surface structure of the LED illumination utensil 1 represented involved by present embodiment.In addition, Fig. 2 is the figure of the structure representing LED illumination utensil 1, Fig. 2 (A) is front view, and Fig. 2 (B) is the cross sectional view in the I-I cross section of Fig. 2 (A).
LED illumination utensil 1 is suitable for illuminating the utensil (Projecting Lamp) leaving tens of rice ~ thousands of rice object far away, as shown in Figures 1 and 2, possesses LED unit 3(Fig. 2), reflector element 5 and receive their lamp body case 7.Multiple (being 5 in illustrated example) LED9 forms a line and forms by LED unit 3.In addition, reflector element 5 correspond to each LED9 and be provided with parabolic reflector 11.And penetrate after making the utilizing emitted light of LED9 become directional light with each parabolic reflector 11.
Below, each several part is illustrated in greater detail.
The top view of Fig. 3 to be the figure of the structure representing LED unit 3, Fig. 3 (A) be LED unit 3, Fig. 3 (B) amplifies the figure representing the LED9 that LED unit 3 possesses, and Fig. 3 (C) is the figure amplifying other examples representing this LED9.
As shown in the drawing, LED unit 3 grow crosswise extend one piece of circuit substrate 13 on by 5 LED9 with certain spacing P(explained later) be configured at row and formed, the lamp circuit of each LED9 is installed in the rear side of this circuit substrate 13.In the present embodiment, by using 5 power outputs to be about 20W(watt) LED9 and form power output and be about 100W(watt) LED unit 3.
As shown in Fig. 3 (B), multiple (being 4 in illustrated example) LED element (LED chip) 15 is packaged into one and forms by LED9.Namely, LED9 possesses and overlooks roughly in foursquare base plate for packaging 17, overlook roughly rounded reflector 19 the upper surface 17A of this base plate for packaging 17 is recessed, configure multiple LED element 15 at the central part O of this reflector 19, provide power to carry out lighting by the positive and negative electrode 21,23 be arranged on around base plate for packaging 17 to each LED element 15.In addition, in reflector 19, be filled with the sealing resin 25 together covering each LED element 15.Above-mentioned LED element 15 has luminous point X in substantial middle respectively, and by these LED element 15 in the mutual intensive configuration of clathrate, can have the luminous point Q these LED element 15 being surrounded this size thus treat in optical design as one.
Now, in the example of Fig. 3 (B), owing to there is no the luminous point X of LED element 15 at the central part O of luminous point Q, so when they are carried out optical design as a luminous point Q, the profile of exposure field becomes not distinct, and again because central part O is optical axis, therefore axle luminosity also reduces.Thus, as shown in the example of Fig. 3 (C), by adopting the luminous point X configuring LED element 15 at the central part O of reflector 19, and around this LED element 15, configure other LED element 15 and form the LED9A of luminous point Q, the profile of exposure field will become distinct, moreover axle luminosity also obtains raising.
But, just cannot treat as spot light greatly if luminous point Q becomes.Therefore, preferably reduce the size of LED element 15 or reduce number, so that relative to parabolic reflector 11 described later, the size of luminous point Q falls within degree optical design can being regarded spot light as.But, if make LED element 15 miniaturization or reduce number, then the high output of the LED9 obtained after their encapsulations will be become difficulty.Therefore, as the light source in a distant place illuminating tens of rice ~ thousands of meters fully, export and will become deficiency.In addition, the comparatively large and high LED9 exported according to luminous point Q, then as described above, the profile of exposure field will become not distinct.In other words, making because of the precise decreasing of distribution controls utensil efficiency also decline, so in order to illuminate a distant place fully, just needing the output vainly improving LED9.
If parabolic reflector 11 to be enlarged to degree luminous point Q can being regarded as spot light, this problem just can solve.But parabolic reflector 11 becomes very large, damages causing the large-scale, re-quantization of utensil the advantage adopting LED9 in light source.Especially, in the present embodiment, the axial length as described later because of parabolic reflector 11 is longer, therefore the maximization of utensil becomes remarkable.
Thus in the present embodiment, not form light source with a LED9, but use multiple (being 5 in the present embodiment) LED9 to form a LED unit 3.According to this structure, due to the output of each LED9 can be reduced, so luminous point Q can be made to diminish, thus distribution controls more accurately can be realized and the maximization of parabolic reflector 11 can not be caused.
Fig. 4 is the figure of the structure representing reflector element 5, Fig. 4 (A) is its front view, and Fig. 4 (B) is its top view, and Fig. 4 (C) is its side view.
Reflector element 5 arranges parabolic reflector 11 according to the spacing P of LED9 is horizontally-arranged and forms in unit main body 30.As shown in Fig. 4 (B), the side-glance shape of this unit main body 30 is along above-mentioned parabolic reflector 11 roughly parabolically shape, and as shown in Fig. 2 (B), the bottom 31 of unit main body 30 is supported in lamp body case 7 in this mode on the circuit substrate 13 being positioned at LED unit 3.In addition, as shown in Figure 4, the structure of reflector element 5 is, possesses and is divided into mutually same shape each other with the face two of the major axis K by each parabolic reflector 11 and segmentation parabolic reflector unit 30A, 30B of being formed, and connect it with screw.
Fig. 5 is the top view of segmentation parabolic reflector unit 30A.In addition, it is identical that another segmentation parabolic reflector unit 30B also schemes shown structure therewith, therefore omit diagram and explanation.
Segmentation parabolic reflector unit 30A is had high-termal conductivity raw material by such as aluminium etc. are shaping by casting, as shown in the drawing, have the face of exposing and longitudinally carrying out the parabolic reflector 11 of two segmentations along major axis K.After casting this face being implemented to the aluminium-vapour deposition of the reflectivity for improving parabolic reflector 11, afterwards segmentation parabolic reflector unit 30A, 30B being carried out engaging and forming above-mentioned reflector element 5.According to this structure, even if when parabolic reflector 11 is darker, also can be formed uniformly aluminium-vapour deposition film at its surface integral, thus obtain the good speculum of efficiency simply.
The parabolic reflector 11 of reflector element 5 is that reflecting surface is set to paraboloidal concave mirror, bottom it, 31 are provided with the top opening 33 in the face of LED9, make the utilizing emitted light launched from the LED9 of this top opening 33 in parabolic reflector 11 parallel photochemical after penetrate from end openings 35.By parallel photochemical rear injection, light just can be suppressed to spread in the distance to prevent illumination from declining.
But only parallel photochemical rear injection, how the deficiency in light quantity when distance that cannot solve irradiation object thing becomes far away, improve axle luminosity and just become very important.Thus, in the present embodiment, in order to improve the axle luminosity on each parabolic reflector 11, the shape of each parabolic reflector 11 of following setting.
Namely, as shown in Figure 5, make to be taken as to the axial length L of end openings 35 length obtaining ultra-narrow angle luminous intensity distribution from the bottom 31 of configuration LED9, and the diameter D1 of end openings 35 to be taken as 1/2 beam angle be that the length of 5 ~ 7 degree forms parabolic reflector 11.Here, in the present embodiment, ultra-narrow angle luminous intensity distribution is the luminous intensity distribution that the place leaving more than tens of ~ thousands of rice for irradiation uses, and namely 1/2 beam angle is the luminous intensity distribution of 5 ~ 7 degree.
Specifically, in the present embodiment, LED9 adopts the LED of width W (Fig. 2 (A)) about 6.4mm, diameter D2(Fig. 5 of the top opening 33 of parabolic reflector 11) be set to the size with the width W same degree of this LED9, about 11mm, and from this top opening 33 to the axial length L of end openings 35 be about 116.55mm, diameter D1(Fig. 5 of end openings 35 in addition) be taken as the diameter that 1/2 beam angle is 5 ~ 7 degree (being 5 degree in the present embodiment), i.e. about 84.9mm.
Thus, the opening degree of the end openings 35 of parabolic reflector 11 and diameter D1 relative to axial length L more in the past for become very little shape, in addition, cutoff angle θ (Fig. 5) also diminishes, parallel rays is about 13.03 degree, so can be made concentrated to improve axle luminosity along the major axis K of parabolic reflector 11 more in the past.And then be 5 ~ 7 degree because 1/2 beam angle is less, so the diffusion of distant place exposure field is suppressed, the illumination in a distant place is improved.
As mentioned above, in reflector element 5, total output is improved by irradiating light respectively from multiple parabolic reflector 11.Now, if the exposure field of the light of each parabolic reflector 11 in a set distant place is separated, then the illumination desired by just cannot obtaining at this exposure field.Thus, consider that the diffusion of the light launched from each parabolic reflector 11 is to set parabolic reflector 11(LED9) spacing P, at the exposure field in a set distant place, there is overlap to make each utilizing emitted light.Accordingly, the axle luminosity possessing the LED illumination utensil 1 of LED unit 3 and reflector element 5 is improved, and just can maintain sufficient illumination in the distance.
Now, by making the major axis K of each parabolic reflector 11 be parallel to each other, just can maintain higher axle luminosity throughout long distance and can not the exposure field generation optically focused of both set a distances left.
Turn back to Fig. 2 above, lamp body case 7 is faced and is formed in the box-formed shape of growing crosswise, the such as aluminium alloy higher by thermal conductivity and being formed.Be provided with the incorporating section 41 of storage reflector element 5 and LED unit 3 in its face side, be provided with the space of storage power circuit etc. in the rear side of this incorporating section 41, be also provided with the supporting arm 43 installed in addition.In addition, as shown in Figures 1 and 2, the incorporating section 41 of lamp body case 7 is molded into the front (end openings 35 side) of reflector element 5 degree of depth outstanding towards front, and the resin-made translucent cover (radiator grille) 45 being provided with the light weights such as Merlon is to cover this outstanding place.By making the front of reflector element 5 give prominence to from lamp body case 7 like this, except obtaining the LED illumination utensil 1 of appearance design excellence, the anterior-posterior length of lamp body case 7 can also be shortened, therefore can lightweight and cost degradation.Wherein, the anterior-posterior length of lamp body case 7 is configured to make the heating of LED unit 3 from the abundant degree of dispelling the heat of lamp body case 7.Now, the axial length L of the parabolic reflector 11 of reflector element 5 is longer, so the thermal capacity of this reflector element 5 increases, therefore can more shorten lamp body case 7.
As described above, according to the present embodiment, parabolic reflector 11 is following structure, and the axial length L namely from the bottom 31 of configuration LED9 to end openings 35 is taken as the length obtaining ultra-narrow angle luminous intensity distribution, and the diameter D2 of end openings 35 is taken as the diameter that 1/2 beam angle is 5 ~ 7 degree.
According to this structure, parallel rays can be made concentrated to improve axle luminosity along the major axis K of parabolic reflector 11 more in the past.And then because 1/2 beam angle is less, therefore the diffusion of the exposure field in a distant place is suppressed, thus can maintain sufficient illumination.Accordingly, just obtain using about 100W(watt) LED unit 3 of power output as light source, the LED illumination utensil 1 of the object leaving 100 meters can be illuminated with sufficient brightness.
In addition, according to the present embodiment, adopt following structure, namely possess multiple LED9 and form LED unit 3, and form the reflector element 5 that each LED9 has parabolic reflector 11, parabolic reflector 11 is set in parallel to each other in addition, and configures multiple LED9 and parabolic reflector 11 with the light launched from each parabolic reflector 11 respectively at the equitant spacing P of the exposure field leaving both set a distances.
According to this structure, a LED9 high output need not be made limpingly also to obtain sufficient illumination at the exposure field leaving both set a distances.In addition, because each parabolic reflector 11 is parallel to each other, so can higher axle luminosity be maintained throughout long distance and can not carry out optically focused at the exposure field leaving both set a distances.
In addition according to the present embodiment, segmentation parabolic reflector unit 30A, 30B of the phase be split to form at the major axis K of the parabolic reflector 11 along reflector element 5 same shape each other carries out aluminium-vapour deposition respectively, each segmentation parabolic reflector unit 30A, 30B are formed reflector element 5 altogether.Accordingly, even if also aluminium-vapour deposition can be formed uniformly at its surface integral when parabolic reflector 11 is darker, thus obtain the good speculum of efficiency simply.
In addition according to the present embodiment, adopt following structure, namely the lamp body case 7 be made up of thermally conductive materials of storage LED unit 3 and reflector element 5 is possessed, end openings 35 side of the parabolic reflector 11 of reflector element 5 is given prominence to from the front of this lamp body case 7, and covers this outstanding position with resin-made translucent cover 45.According to this structure, obtain the LED illumination utensil 1 of appearance design excellence, the anterior-posterior length of lamp body case 7 can also be shortened in addition, therefore can lightweight and cost degradation.And then the axial length L of the parabolic reflector 11 of reflector element 5 is longer, so the thermal capacity of this reflector element 5 increases, lamp body case 7 shortening more therefore can be made.
< the 2nd embodiment >
Fig. 6 ~ Fig. 9 is the figure of the structure of the LED illumination utensil 100 represented involved by second embodiment of the present invention, Fig. 6 is the stereogram observed from front, and Fig. 7 is front view, and Fig. 8 is side view, and Fig. 9 is the stereogram observed from the back side.In addition, in the drawings, same mark is added for the parts illustrated at the 1st embodiment, and the description thereof will be omitted.
As shown in these figures, in LED illumination utensil 100, adopt and configure two-part structure up and down, described two parts are three LED9 and parabolic reflector 11 be configured at the reflector element 105A of row and two LED9 and parabolic reflector 11 be configured at the reflector element 105B of row.About the manufacture method of each reflector element 5 and optical characteristics as illustrated in the 1st embodiment.
In this LED illumination utensil 100, adopt about 40W(watt) the LED9 of power output, to seek the output of Yan Genggao compared with the LED illumination utensil 1 of the 1st embodiment.
In addition in the present embodiment, the diameter D2 of the top opening 33 of parabolic reflector 11 is taken as about 20.7mm, and be taken as about 166mm from this top opening 33 to the axial length L of end openings 35, in addition, the diameter D1 of end openings 35 is taken as the diameter that 1/2 beam angle is 5 ~ 7 degree (being 5 degree in the present embodiment), i.e. about 113.6mm.Accordingly, in a same manner as in the first embodiment, parallel rays along parabolic reflector 11 major axis concentrate and axle luminosity is improved, and then, be 5 ~ 7 degree because 1/2 beam angle is less, therefore the diffusion of distant place exposure field is suppressed, thus the illumination in a distant place is improved.
In addition in this LED illumination utensil 100, as shown in Figure 7, upper and lower reflector element 105A, 105B are configured to the spacing distance of all LED9 and parabolic reflector 11 and spacing P is all equidistant, to suppress at exposure field generation uneven illumination.
Now, specify that the spacing P between each row has overlap to make the exposure field that light is leaving both set a distances launched from the parabolic reflector 11 of each row.Accordingly, LED illumination utensil 1 high output further can just easily be made.
In addition, above-mentioned embodiment just illustrates a kind of form of the present invention, can at random carry out being out of shape and applying without departing from the scope of the subject in the invention.
Although in above-mentioned 2nd embodiment, in reflector element 105A, 105B of upper-lower section, make the number of LED9 and parabolic reflector 11 different, be not limited to this, such as, can also be same number as shown in Figure 10 (A).Now, specify that the spacing between each row has overlap to make the exposure field that light is leaving both set a distances launched from the parabolic reflector 11 of each row, this point is as illustrated in the 2nd embodiment.In addition, as shown in Figure 10 (B), by adopting the optical axis position configuration parabolic reflector 11 at LED illumination utensil 1, and configuring the configuration structure of the concentric circles of multiple parabolic reflector 11 in the mode of surrounding this parabolic reflector 11, the axle luminosity of LED illumination utensil 1 can also be improved further.In the case, specified configuration has overlap to make the exposure field that light is leaving both set a distances launched from each parabolic reflector 11.
Self-evident in addition, in the above-described embodiment, the parabolic reflector that the luminous intensity distribution (such as narrow angle luminous intensity distribution etc.) had beyond the luminous intensity distribution of ultra-narrow angle is set can also be added on reflector element 5.
And then, in the above-described embodiment, when obtaining abundant illumination by a LED9 at the exposure field leaving both set a distances, respectively the number of LED9 and parabolic reflector 11 can also be set to one.
In addition, the LED illumination utensil 1 illustrated by above-mentioned embodiment can illuminate with sufficient brightness the exposure field leaving tens of rice ~ thousands of meters, carries out the Projecting Lamp performed so can be suitable as at high-rise.Arrange multiple being configured additionally by by LED illumination utensil 1, can also be suitable for ball park and arena etc. needs from a distant place the Sport lighting that broad range is thrown light on.
Description of reference numerals:
1,100:LED ligthing paraphernalia
3:LED unit
5: reflector element
7: lamp body case
9、9A：LED
D1: the diameter of end openings
D2: the diameter of top opening
11: parabolic reflector
15:LED element
30A, 30B: segmentation parabolic reflector unit
31: bottom
33: top opening
35: end openings
45: resin-made translucent cover (radiator grille)
K: major axis
L: axial length
P: spacing
Claims (4)
1. a LED illumination utensil, is characterized in that, possesses multiple LED and reflector element, and be provided with parabolic reflector at described reflector element each LED corresponding, this parabolic reflector is provided with the top opening in the face of described LED in bottom,
Described LED is configured to possess base plate for packaging, the recessed reflector overlooking circular on this base plate for packaging, configure multiple LED element at the central part of described reflector, and in optical design, as one, there is the luminous point described multiple LED element being surrounded this size treat
For described parabolic reflector, the axial length from the bottom of the described LED of configuration to end openings is made to be taken as the length that can obtain ultra-narrow angle luminous intensity distribution respectively, the diameter of described end openings is taken as and makes 1/2 beam angle be the diameter of 5 ~ 7 degree, and the major axis of parabolic reflector described in each is set in parallel to each other
Described LED and parabolic reflector is configured respectively in the equitant spacing of the exposure field leaving both set a distances with the light respectively from described parabolic reflective surface launching, and
On the segmentation parabolic reflector described parabolic reflector being divided into mutually same shape each other along major axis, form reflectance coating respectively, each segmentation parabolic reflector is joined together and forms described parabolic reflector.
2. LED illumination utensil as claimed in claim 1, is characterized in that possessing:
Grow crosswise one piece of circuit substrate of described LED is configured with certain described spacing; And
Receive the lamp body case be made up of thermally conductive materials of described circuit substrate and described reflector element,
Described reflector element is supported in described lamp body case in the bottom mode be positioned on described circuit substrate.
3. LED illumination utensil as claimed in claim 2, is characterized in that,
The end openings side of described parabolic reflector is given prominence to and as outstanding position from the front of described lamp body case, and the transparent radiator grille be made of resin is to cover this outstanding position.
4. LED illumination utensil as claimed in claim 1 or 2, is characterized in that,
Described LED by the LED element that configures at the central part of described reflector and around this LED element other LED element of intensive configuration be configured to a luminous point.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-144308 | 2010-06-24 | ||
| JP2010144308A JP5612380B2 (en) | 2010-06-24 | 2010-06-24 | LED lighting fixtures |
| PCT/JP2011/064357 WO2011162323A1 (en) | 2010-06-24 | 2011-06-23 | Led illumination device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102725581A CN102725581A (en) | 2012-10-10 |
| CN102725581B true CN102725581B (en) | 2015-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180007553.4A Active CN102725581B (en) | 2010-06-24 | 2011-06-23 | LED illumination utensil |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP5612380B2 (en) |
| KR (1) | KR20130091242A (en) |
| CN (1) | CN102725581B (en) |
| WO (1) | WO2011162323A1 (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014086159A (en) * | 2012-10-19 | 2014-05-12 | Toshiba Lighting & Technology Corp | Lighting device |
| JP2014093129A (en) | 2012-10-31 | 2014-05-19 | Toshiba Lighting & Technology Corp | Light-emitting unit and luminaire |
| JP5758424B2 (en) * | 2013-03-01 | 2015-08-05 | 株式会社アイ・ライティング・システム | lighting equipment |
| JP6179760B2 (en) * | 2013-04-01 | 2017-08-16 | 東芝ライテック株式会社 | lighting equipment |
| DE202013101790U1 (en) * | 2013-04-25 | 2014-07-28 | Zumtobel Lighting Gmbh | Luminaire with housing with several light emission openings |
| JP5753221B2 (en) * | 2013-05-31 | 2015-07-22 | 株式会社アイ・ライティング・システム | lighting equipment |
| CN105209819B (en) | 2013-05-31 | 2018-10-02 | 岩崎电气株式会社 | Luminaire |
| JP6004101B2 (en) * | 2013-08-22 | 2016-10-05 | 岩崎電気株式会社 | lighting equipment |
| KR101668265B1 (en) | 2013-09-06 | 2016-10-24 | 주식회사 케이엠더블유 | High power LED lighting |
| JP6187764B2 (en) * | 2014-01-31 | 2017-08-30 | 東芝ライテック株式会社 | Lighting device |
| DE102015205003B4 (en) * | 2015-03-19 | 2016-12-08 | Glp German Light Products Gmbh | lighting device |
| JP6944719B2 (en) * | 2017-01-13 | 2021-10-06 | 株式会社ホタルクス | lamp |
| JP6324553B2 (en) * | 2017-01-25 | 2018-05-16 | シチズン時計株式会社 | LED package |
| JP6324552B2 (en) * | 2017-01-25 | 2018-05-16 | シチズン時計株式会社 | LED package |
| JP6742384B2 (en) * | 2018-11-06 | 2020-08-19 | 三菱電機株式会社 | lighting equipment |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4497348B2 (en) * | 2004-01-13 | 2010-07-07 | 株式会社小糸製作所 | Vehicle lighting |
| US7182496B2 (en) * | 2004-04-14 | 2007-02-27 | Opto Technology, Inc. | Multiple LED focused lighting device |
| JP3787148B1 (en) * | 2005-09-06 | 2006-06-21 | 株式会社未来 | Lighting unit and lighting device |
| US8231251B2 (en) * | 2005-10-28 | 2012-07-31 | Philips Lumileds Lighting Company Llc | Multiple piece reflective angle transformer |
| JP2007258114A (en) * | 2006-03-24 | 2007-10-04 | Jefcom Kk | Illumination device |
| JP2008016412A (en) * | 2006-07-10 | 2008-01-24 | Showa Denko Kk | Lighting apparatus, and reflector therefor |
| US7845827B2 (en) * | 2007-05-08 | 2010-12-07 | The Coleman Company, Inc. | LED spotlight |
| JP5097916B2 (en) * | 2007-10-18 | 2012-12-12 | シーシーエス株式会社 | Lighting device |
| JP2009230856A (en) * | 2008-03-19 | 2009-10-08 | Puratekku:Kk | Luminaire, cylinder of luminaire, and manufacturing method of luminaire |
| JP2010073650A (en) * | 2008-09-22 | 2010-04-02 | Toshiba Lighting & Technology Corp | Luminaire |
-
2010
- 2010-06-24 JP JP2010144308A patent/JP5612380B2/en active Active
-
2011
- 2011-06-23 CN CN201180007553.4A patent/CN102725581B/en active Active
- 2011-06-23 WO PCT/JP2011/064357 patent/WO2011162323A1/en active Application Filing
- 2011-06-23 KR KR1020127020179A patent/KR20130091242A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| CN102725581A (en) | 2012-10-10 |
| JP2012009280A (en) | 2012-01-12 |
| WO2011162323A1 (en) | 2011-12-29 |
| KR20130091242A (en) | 2013-08-16 |
| JP5612380B2 (en) | 2014-10-22 |
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