CN1293743A - Luminaire - Google Patents
Luminaire Download PDFInfo
- Publication number
- CN1293743A CN1293743A CN00800035A CN00800035A CN1293743A CN 1293743 A CN1293743 A CN 1293743A CN 00800035 A CN00800035 A CN 00800035A CN 00800035 A CN00800035 A CN 00800035A CN 1293743 A CN1293743 A CN 1293743A
- Authority
- CN
- China
- Prior art keywords
- expander
- illuminating lamp
- light
- reflector
- lamp
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
-
- 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
- F21V7/0008—Reflectors for light sources providing for indirect lighting
-
- 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
Abstract
A luminaire for distributing light from a light source (7). The luminaire includes one or more reflectors (2, 3), placed symmetrically about the lamp (7) to reflect the light output from the lamp (7). One or more light spreading devices (4, 5) are provided around the reflectors (2, 3) to receive the light reflected by the reflectors (2, 3). Such a luminaire provides for uniform distribution of light while minimizing glare from the light fitting.
Description
The present invention relates to a kind of illuminating lamp, relate in particular to a kind of diffusion from illuminating lamp such as the light source light of high-power lamp.
One of backlighted problem of edifice such as big warehouse, factory or exhibit halls is to guarantee that the light of light source is distributed in the ground region that needs illumination fully fifty-fifty.In addition, guarantee that the dazzling light minimum from electro-optical device also is important.The general requirement of dazzling light to device is, sees that with the elevation angle that is lower than 50 ° dazzling light should be lower than 10,000cd/m
2
According to the present invention, a kind of illuminating lamp of divergent light source output light is provided, this illuminating lamp comprises:
(a) installing mechanism that is used for described light source,
(b) a foveal reflex device, but be positioned to the output light of reflection source, this reflector with convex surface towards light source, and
(c) one at foveal reflex device light propagation and disperser on every side, is positioned to receive the light by the reflection of foveal reflex device, and wherein light propagation and disperser comprise that one has the optical sheet of body structure surface, in order to be offset and to spread the light of sheet material propagation.
At this used term " light ", refer to the electromagnetic radiation in ultraviolet ray, visible light or the infra-red range of electromagnetic spectrum.
In one embodiment of this invention, the foveal reflex device is surrounded by one or more other reflectors, and outmost one of reflector is its concave surface towards light source.An advantage of this structure arrangement is by two or more reflectors at an angle to each other are provided, just can provide one with light be diffused into own below, also can be diffused into the illuminating lamp of own side.Preferably, the foveal reflex device have one with the consistent central axis of central axis of other reflector.In a structure arrangement, the foveal reflex utensil has the gradually little taper shape of light source on one day, and second reflector that surrounds the foveal reflex device has and leaves the gradually little hollow conical butt of light source.
In another example of the present invention, the foveal reflex device comprises a plurality of triangle projective planum reflecting surfaces, to constitute the taper of a tip towards light source.Generally speaking, the cone that is made of foveal reflex device surface can be eight limits.One second reflector that surrounds the foveal reflex device can be the limit number hollow frustum identical with the foveal reflex device, but it is gradually little to leave light source.A kind of like this reflector comprises some tetragonal surfaces that are, and there are the relative side of pair of parallel and the relative side of a pair of convergence in each surface, and quadrangle is connected with each other by their convergence side.Preferably, second reflector is installed in the periphery away from light source near the foveal reflex device.
Reflector can be made by any suitable reflecting material, the specular reflective material of the mirror film of describing among preferably a kind of glass of handling such as metal, with metal or the plastic foil of handling with metal or United States Patent (USP) 5,882,774 and the WO97/01774.
Locate a disperser, in order to the light of collecting and diffusion is reflected by reflector.Preferably, disperser comprises at least one first expander that is formed by optical sheet, and its shape is hollow conical butt or cone, and its central axis is consistent with the central axis of foveal reflex device, and it is a concave surface facing to reflector.When two reflectors, disperser preferably comprises one second expander in addition, it is also formed by an optical sheet, and first and second expanders are positioned to the light that first expander is collected and diffusion is reflected by the foveal reflex device, and collection of second expander and diffusion are by the light of second reflector reflection.
Second expander is preferably installed near the periphery away from reflector of first expander.
The shape of second expander generally is (but being not limited to) annular or annular polygon.
In general, second expander comprises a plurality of quadrangle expanders surface, and there is the relative side of pair of parallel on these surfaces, and these quadrangles are connected with each other at uneven side, form an annular polygon.First expander generally also comprises the square-shaped sections of a plurality of correspondences, and they are connected with each other at uneven side, and forms an annular polygon around the second expander periphery.
Illuminating lamp also comprises the installing mechanism of a lamp, so that light source is installed in the illuminating lamp.Preferably, light source is installed in the illuminating lamp by a centre bore in disperser.The central axis in hole is general consistent with the central axis of foveal reflex device basically.With taper shape under the radiative situation, light source is mounted to the center coaxial line of conical axis and foveal reflex device at light source.
In the ordinary course of things, it is vertical launching conical axis, and light is up towards foveal reflex device emission, like this by disperser with light towards side other and below transfer, to illuminate bigger ground region.Although use single reflector and single expander also can obtain acceptable effect, this structure arrangement might allow the directly sub-fraction area illumination deficiency below light source.Use one can guarantee that with crossing one second reflector at angle of foveal reflex device the part of light is substantially perpendicularly reflected down as mentioned above, make it collected, and be distributed in the direct zone below lamp by one second expander.
Disperser can be the transmission device of a diffusion into the light emitted.Can adopt translucent glass or plastics diffuser, but preferably, expander comprises that one has the optical sheet (for example film) of body structure surface with offset light.This optical sheet is known and is disclosed in for example United States Patent (USP) 4,657,355; 5,551,042 and W091/18304 in.Suitable optical sheet has a body structure surface, and this surface comprises an array Fresnel lens, the preferably negative Fresnel lens of an array, or the two cylindrical shape Fresnel lens that intersect.Other suitable optical sheet is described in our common proposition and undelegated, that the applying date is identical with the application PCT patent application _ _ _ _ (attorney is 54854PCT9A).
Select as another kind, can use two clear sheets with linear structure surface, sheet material overlaps each other, and the direction of linear structure is rectangular basically each other.
In an example of the present invention, illuminating lamp can comprise one the 3rd reflector, and it reflexes to disperser with light radiation from the foveal reflex device.
Adopting substantially in illuminating lamp is conical reflector, and light source Vertical Launch in illuminating lamp is only well-known, and this can be from US-A-5184550, recognizes in 5105347 and 4536828.
Below in conjunction with accompanying drawing an example of illuminating lamp of the present invention is described, in the accompanying drawing:
Fig. 1 is the generalized section of an illuminating lamp; And
Fig. 2 is the view along the line A-A intercepting of Fig. 1.
Fig. 1 is the generalized section of an illuminating lamp (1), and this illuminating lamp comprises a foveal reflex device (2) that is surrounded by one second (outward) reflector (3).One first expander (4) (after this being called the side expander) is relative with external reflectance device (2,3) with the foveal reflex device respectively basically with one second expander (5) (after this being called the bottom expander).Bottom expander (5) is annular, and centre bore (6) can insert a lamp (7), makes lamp pass through hole (6) and is installed in the illuminating lamp (1).
Foveal reflex device (2) comprises eight equal plane triangle minute surfaces, forms the eight arris awl of a tip towards lamp (7), therefore protrude towards lamp, and a periphery away from lamp is formed on leg-of-mutton bottom.External reflectance device (3) comprises eight equal plane quadrilateral minute surfaces that are installed in around the foveal reflex device periphery.Each quadrangle has the relative side of pair of parallel and the relative side of a pair of convergence.Shorter lateral sides of such in the parallel opposite side, its length equal to form the length on the triangle base of foveal reflex device, and its position is located to such an extent that contact with the triangle base, and these quadrangles interconnect by the convergence side.Therefore, the shape of external reflectance device is to leave the gradually little hollow truncated pyramid of lamp.The structure details of bottom expander (5) and side expander as shown in Figure 2, as we know from the figure, bottom expander (5) comprises eight equal plane quadrilateral expander panels (8).Each quadrangle has the relative side of pair of parallel and the relative side of a pair of convergence, and quadrangle is interconnected to a flat ring-type octagon by the convergence side.Similarly, side expander (4) comprises eight quadrangle side expander panels (9) with paired parallel sides and convergence side, but in this case, quadrangle couples together by their convergence side, and forms a part along the gradually little eight arris awl of the same direction of foveal reflex device.
What know is that reflector can have multiple different structure to realize required optical effect with expander.For example, difform planar section be can adopt, or the reflector and/or the expander of continuous curve surface used.Foveal reflex device (2) can be conical, and external reflectance device (3) and side expander (4) can be conical butts, and bottom expander (5) can be an annular disk.Also can use altogether with continuous expander and/or reflector group segmentation.
Lamp (7) can be any suitable power supply, need the light from lamp (7) be spread.But when lamp (7) is one such as the HID lamp, or when particularly the trade mark that for example can buy from the FusionLighting Co., Ltd of Maryland, USA was the coloured glaze ion lamp of Solar100, illuminating lamp (1) was just particularly useful.
Light is launched from lamp with a narrow cone, and Fig. 1 schematically shows this light with ray (10,11).Be incident on the foveal reflex device (2) from the light (10) of lamp (7) emission, reflect thus and be incident on the side expander (4).Side expander (4) is diffused into light (10) a plurality of directions of arrow (12) expression.Therefore, from lamp (7) emission and be diffused into the side of illuminating lamp (1) by side expander (4) from the light (10) of foveal reflex device (2) reflection by.
Similarly, the light (11) that is incident on the lamp (7) of external reflectance device (3) reflexes to bottom expander (5) thus.The light (11) that is incident on bottom expander (5) spreads with the indicated many different direction of arrow (13), and illuminates the directly following zone of lamp (7).
In another structure of illuminating lamp (1), if side expander (4) have enough diffusion angles with light (12) be diffused into lamp (7) directly below the zone, just can not use end expander (5) and external reflectance device (3) accordingly.
In another example of the present invention, if the illuminating lamp (1) that especially only need throw light on below, can the light of foveal reflex device be reflexed to bottom expander (5) with another minute surface, can save side expander (4) thus.
Adopt above-mentioned illuminating lamp (1), that part of brightness that is transferred to bottom expander (5) of lamp is controlled by the diameter and lamp (7) to the distance of foveal reflex device (2) of foveal reflex device (2).In illuminating lamp, can vertically adjust, make the user of illuminating lamp (1) or setter after illuminating lamp (1) installs, can adjust lighting level below the illuminating lamp (1) the installation of lamp (7).
Bottom expander (5) and side expander (4) can be any transmission devices, this device diffusion incident light thereon.For example, expander (4,5) can be translucent plastics diffuser.But preferably, expander comprises that one has the optical sheet of body structure surface.
In an example of the present invention, the sheet material with body structure surface can be according to United States Patent (USP) 5,551, the version of describing in 042, and promptly body structure surface can form a plurality of negative Fresnel lens, and they can be radially, or linear.Perhaps also can use its body structure surface by the optical sheet that a plurality of positive Fresnel lens form, perhaps use our common the proposition and the PCT patent application identical with the application of the undelegated applying date _ _ _ _ optical sheet described in (attorney is 54854PCT9A).
Preferably, it is 20 ° to 60 ° solid angle that the side expander is diffused into a half-angle with light, and generally speaking, it is 90 ° solid angle that bottom expander (5) can be diffused into light one half-angle.
In addition, one or two expander (4,5) can asymmetric ground diffused light.
As further change, natural daylight can be directed to illuminating lamp through the outward flange of external reflectance device (3) and the space between the top edge of side expander (4) from above.
Claims (14)
1. the illuminating lamp of diffused light source output light, this illuminating lamp comprises:
(a) installing mechanism of the described light source of an installation,
(b) a foveal reflex device, but be positioned to the output light of reflection source, this reflector with convex surface towards light source, and
(c) one at foveal reflex device light propagation and disperser on every side, is positioned to receive the light by the reflection of foveal reflex device, and wherein light propagation and disperser comprise that one has the optical sheet of body structure surface, in order to be offset and to spread the light of sheet material propagation.
2. illuminating lamp as claimed in claim 1 is characterized in that, the foveal reflex device is surrounded by one or more other reflecting surfaces, and outmost one of reflector is recessed face towards light source.
3. illuminating lamp as claimed in claim 2 is characterized in that,
The foveal reflex device has a central axis consistent with the central axis of second reflector.
4. as claim 2 or 3 described illuminating lamps, it is characterized in that,
The foveal reflex device comprises the gradually little taper shape of light source on one day, and second reflector comprises and leaves the gradually little hollow conical butt of light source.
5. as claim 2 or 3 described illuminating lamps, it is characterized in that,
The foveal reflex device comprises a plurality of triangle projective planum reflecting surfaces, to constitute the taper of a tip towards light source, second reflector can be the limit number hollow frustum identical with the foveal reflex device, but it is gradually little to leave light source, this reflector is formed by some plane reflections surface, each plane reflection surface is quadrangle, and each quadrangle has the relative side of pair of parallel and the relative side of a pair of convergence, and adjacent quadrangle is connected with each other by their convergence side.
6. as any one described illuminating lamp of claim 2 to 5, it is characterized in that second reflector is installed near the periphery of foveal reflex device.
7. any one described illuminating lamp in the claim as described above, it is characterized in that, disperser comprises first expander that is formed by optical sheet, its shape is hollow conical butt or cone, its central axis is consistent with the central axis of foveal reflex device, and it is a concave surface facing to foveal reflex device face.
8. illuminating lamp as claimed in claim 7, it is characterized in that, also comprise one by formed second expander of optical sheet, expander is positioned to the light that first expander is collected and diffusion is reflected by the foveal reflex device, and collection of second expander and diffusion are by the light of second reflector reflection.
9. illuminating lamp as claimed in claim 8 is characterized in that, second expander be shaped as annular or annular polygon, its is installed near the periphery away from reflector of first expander.
10. illuminating lamp as claimed in claim 8 or 9 is characterized in that first and second expanders are frustoconical.
11. illuminating lamp as claimed in claim 8 or 9, it is characterized in that, second expander comprises a plurality of quadrangle expanders surface, there is the relative side of pair of parallel on these surfaces, these quadrangles are connected with each other at uneven side, form an annular polygon, and first expander comprises the quadrangle of a plurality of correspondences, they are connected with each other at uneven side, to form an annular polygon around the second expander periphery.
12. the described illuminating lamp of any one in the claim is characterized in that as described above, disperser has a centre bore, and a lamp can be installed in the installing mechanism of lamp by this centre bore.
13. the described illuminating lamp of any one in the claim is characterized in that as described above, the distance of lamp installing mechanism distance first reflector is adjustable.
14. the described illuminating lamp of any one in the claim is characterized in that as described above, illuminating lamp also comprises one with the radiative high-power lamp of taper shape, and reflector is positioned at the center, with the conical radiative axis symmetry of lamp.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9900818.7 | 1999-01-14 | ||
| GB9900818 | 1999-01-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1293743A true CN1293743A (en) | 2001-05-02 |
Family
ID=10845941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00800035A Pending CN1293743A (en) | 1999-01-14 | 2000-01-13 | Luminaire |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1064497A1 (en) |
| JP (1) | JP2002535803A (en) |
| CN (1) | CN1293743A (en) |
| CA (1) | CA2323445A1 (en) |
| WO (1) | WO2000042351A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720966A (en) * | 2012-06-05 | 2012-10-10 | 深圳市中孚能电气设备有限公司 | Lamp head |
| CN102913765A (en) * | 2011-08-03 | 2013-02-06 | 株式会社乐格氏 | Lighting fixture |
| CN104913248A (en) * | 2015-07-02 | 2015-09-16 | 都江堰光明光电材料有限责任公司 | Lamp |
| CN113349659A (en) * | 2019-12-20 | 2021-09-07 | 科勒公司 | System and method for illuminating a shower |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2609800A (en) | 1999-01-14 | 2000-08-01 | Minnesota Mining And Manufacturing Company | Optical sheets suitable for spreading light |
| JP5188077B2 (en) * | 2007-03-02 | 2013-04-24 | 株式会社光波 | Light direction changing element and planar light emitting device |
| CN109838760A (en) * | 2017-11-24 | 2019-06-04 | 核工业西南物理研究院 | A kind of plane LED lamp reflector |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2744192A (en) * | 1953-01-21 | 1956-05-01 | Lynard Of California Inc | Reflector lamp |
| US3651320A (en) * | 1970-06-01 | 1972-03-21 | Moldcast Mfg Co | Lighting fixtures |
| US4657355A (en) | 1981-05-25 | 1987-04-14 | Masataka Negishi | Device for changing light width and direction |
| US4704666A (en) * | 1986-08-15 | 1987-11-03 | Davis Charles S | Artificial light source utilizing a holographic optical element to control radiant light |
| US5095415A (en) * | 1989-10-30 | 1992-03-10 | Minnesota Mining And Manufacturing Company | Light fixture for externally illuminated sign |
| US5442482A (en) | 1990-05-21 | 1995-08-15 | Johnson; William N. H. | Microlens screens, photopolymerisable materials and artifacts utilising the same |
| US5551042A (en) | 1993-04-26 | 1996-08-27 | Minnesota Mining And Manufacturing Company | Structured films and use thereof for daylight illumination |
| US5882774A (en) | 1993-12-21 | 1999-03-16 | Minnesota Mining And Manufacturing Company | Optical film |
| US6080467A (en) | 1995-06-26 | 2000-06-27 | 3M Innovative Properties Company | High efficiency optical devices |
| DE29718646U1 (en) * | 1997-10-21 | 1998-09-17 | Spectral Ges Fuer Lichttechnik | lamp |
-
2000
- 2000-01-13 EP EP00904321A patent/EP1064497A1/en not_active Withdrawn
- 2000-01-13 CN CN00800035A patent/CN1293743A/en active Pending
- 2000-01-13 JP JP2000593889A patent/JP2002535803A/en active Pending
- 2000-01-13 CA CA002323445A patent/CA2323445A1/en not_active Abandoned
- 2000-01-13 WO PCT/US2000/000811 patent/WO2000042351A1/en not_active Application Discontinuation
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913765A (en) * | 2011-08-03 | 2013-02-06 | 株式会社乐格氏 | Lighting fixture |
| CN102720966A (en) * | 2012-06-05 | 2012-10-10 | 深圳市中孚能电气设备有限公司 | Lamp head |
| CN102720966B (en) * | 2012-06-05 | 2016-06-29 | 深圳市中孚能电气设备有限公司 | A kind of lamp holder |
| CN104913248A (en) * | 2015-07-02 | 2015-09-16 | 都江堰光明光电材料有限责任公司 | Lamp |
| CN113349659A (en) * | 2019-12-20 | 2021-09-07 | 科勒公司 | System and method for illuminating a shower |
| US11602032B2 (en) | 2019-12-20 | 2023-03-07 | Kohler Co. | Systems and methods for lighted showering |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2000042351A1 (en) | 2000-07-20 |
| JP2002535803A (en) | 2002-10-22 |
| EP1064497A1 (en) | 2001-01-03 |
| CA2323445A1 (en) | 2000-07-20 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |