WO2001004538A1 - Device for soft irradiation - Google Patents
Device for soft irradiation Download PDFInfo
- Publication number
- WO2001004538A1 WO2001004538A1 PCT/US2000/016893 US0016893W WO0104538A1 WO 2001004538 A1 WO2001004538 A1 WO 2001004538A1 US 0016893 W US0016893 W US 0016893W WO 0104538 A1 WO0104538 A1 WO 0104538A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- reflector
- soft irradiation
- irradiation
- soft
- source
- Prior art date
Links
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
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/83—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
-
- 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
- F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
- F21V13/02—Combinations of only two kinds of elements
- F21V13/08—Combinations of only two kinds of elements the elements being filters or photoluminescent elements and reflectors
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N2005/0664—Details
- A61N2005/0665—Reflectors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N5/0613—Apparatus adapted for a specific treatment
- A61N5/0614—Tanning
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N5/0613—Apparatus adapted for a specific treatment
- A61N5/0616—Skin treatment other than tanning
Definitions
- the present invention relates to a device to produce gradient soft irradiation through the use of off-axis placement of a radiation source within a spiral reflector which completely encloses the source.
- the present invention also relates to the use of optical coatings in conjunction with the device in order to enable the device to emit selective narrow bandwidths of radiation.
- collimators such as lensing and parabolic reflectors, emit collimated, spatially coherent electromagnetic energy. At the aperture of these collimators, all electromagnetic energy is spatially coherent. Spatially coherent light will produce sharp shadows .
- spiral reflectors have been used to illuminate walls, as per U.S. Patent 4. 564.888. Wall Wash Lighting Fixture.
- the reflector of this device discloses only the use of a light bulb within a reflector which does not fully enclose the bulb.
- the present invention is directed to off-axis localization of linear and point sources of electromagnetic irradiation within spiral curve reflectors to produce gradient soft irradiation with approximately linear power degradation with respect to distance.
- the joining of multiple spirals can be adjusted to uniformly irradiate complex surfaces.
- the radiation emanating from the source of this invention is dispersed spatially at the aperture without parallel rays, producing a soft pattern of irradiation.
- the present invention is directed to the application of optical reflectance coatings to the inner surface of the spiral reflector to produce emission of selective narrow bandwidths of radiation from a broader bandwidth source.
- the invention apparatus will have application to the fields of phototherapy (both adjuvant and endogenous reactions) , tanning, photography, lithography, electromagnetic activated chemical reactions, and heat transference. With both pulsed and continuous light sources there will be specific utilities to this design. Examples of arrangements within the scope of the present invention are illustrated in the accompanying drawings and described hereinafter, but it will be understood that neither the drawings nor the descriptions thereof are presented by way of limitation and that other arrangements also within the scope of the present invention will occur to those skilled in the art upon reading the disclosure set forth herein.
- Figure 1 is a perspective view of a device of the present invention.
- Figure 2 is a side view of the device of Figure 1.
- Figure 3 is a top view of the device of Figure 1.
- Figure 4 is a sectional view taken along the line 4-4 of Figure 3. Airflow patterns are shown by the arrows .
- Figure 5 is a front view of a cabinet and reflector arrangement of the present invention. Airflow patterns are shown by the arrows .
- Figure 6 is a sectional view taken along line 6-6 of
- Airflow patterns with respect to the left reflector are shown by the arrows (omitted with respect to the right reflector) .
- Figure 7 is a typical reflectance curve for a device of the present invention utilizing an optical reflectance coating.
- Figure 8 is a side sectional view similar to Figure 4 showing a pair of transmission filters offset across the interior opening of the reflector. Airflow patterns are shown by the arrows .
- Figure 9 is also a side sectional view similar to Figure 4 showing a single transmission filter across the interior opening of the reflector.
- Figure 10 is a perspective view of an alternative embodiment of a device of the present invention. Airflow patterns are shown by the arrows .
- Figure 11 is a perspective view of yet another embodiment of a device of the present invention. Airflow patterns are shown by the arrows .
- Figure 12 is a perspective view of a further embodiment of a device of the present invention.
- a preferred device of the present invention comprises a spiral reflector 10 and an electromagnetic radiation source 12.
- the device produces gradient soft irradiation through the off-axis placement of the radiation source 12 completely enclosed within the spiral reflector 10 such that the device emanates only reflected radiation.
- the spiral reflector 10 completely encloses the radiation source 12 such that the radiation source 12 is not directly visible from the exterior of the reflector 10.
- all radiation emitted from the device is reflected at least once, producing a more linear degradation of the intensity of the emitted radiation.
- a light source such as a light bulb or tube
- a light source is a type of electromagnetic radiation source emitting radiation with wavelengths in at least a portion of the visible spectrum. Because the device of the present invention is usable at wavelengths outside the visible spectrum, the source will be referred to herein as an electromagnetic radiation source.
- a spiral is the locus in a plane of a point moving around a fixed center at a monotonically increasing or decreasing distance from the center.
- a focal axis of an optical system is the locus of points forming an axis of symmetry to which parallel incident rays converge or from which they appear to diverge .
- venting of the spiral reflector near the radiation source 12 is provided in part through cooling vent 14, and cooling openings 16 in side closure members 18.
- the off-axis placement of the source 12 allows for this method of cooling to be used. It should be understood that references herein to air cooling are equivalent to cooling by any fluid substance, and fluid cooling is interchangeable with air cooling.
- impingement air cooling in the preferred embodiment is facilitated by cabinet 22 having intake holes 28, outlet hole 30, and being sealed with a substantially transparent window 26, in conjunction with blower 24.
- Blower 24 serves to pull out of the cabinet 22 through outlet hole 30, creating an area of lower pressure between the radiation exit aperture of the reflectors 10 and the transparent window 26.
- air is pulled into the cabinet through intake holes 28, into the reflector through cooling vent 14 and cooling openings 16, over and around radiation source 12, and out through the radiation exit aperture of the reflector 10.
- the spiral shape of the reflector 10 and off-axis placement of the radiation source 12 contribute to the cooling efficiency of the design as the airflow described above creates a turbulence around the radiation source 12. This design permits the use of high intensity radiation sources to be used within the completely enclosing reflector 10.
- blower 24 shown in the Figures hereto is intended to be a generic representation of a mechanical device causing the movement of a fluid, such as air. Devices of this type are well known in the art and the exact type of device is not critical to scope of this invention.
- Figure 6 also shows the preferred placement of two spiral reflectors - utilizing the opposing gradient illumination patterns of each reflector to produce a uniform illumination of a surface. Additionally, the preferred embodiment allows for the stacking of multiple pairs of reflectors to provide illumination of surfaces of virtually any size or shape.
- the inner surface of the spiral reflector 10 of the preferred embodiment has an optical reflectance coating 20 which efficiently reflects only select wavelengths. Since much of the radiation emitted from the device is reflected multiple times before exiting, the device will emit bands of radiation with sharp delineation. Optical reflectance coatings are often 95 - 99% reflective over the desired bandwidth and less than 10% reflective elsewhere. Thus, multiple reflections will effectively eliminate the undesired bandwidth while preserving the desired bandwidth.
- Figure 7 shows a typical reflectance curve for the preferred embodiment .
- substantially transparent window 26 may by design have filtering characteristics with respect to certain wavelength radiation.
- Figure 8 shows a pair of transmission filters staggered across the interior opening of the reflector 10 such that radiation from the source 12 will be filtered while cooling air may continue to flow around the source.
- Figure 9 shows an alternate version of the filter design of Figure 8 wherein a single transmission filter 32 is utilized across the interior opening of the reflector 10. This design allows use of a reduced size transmission filter 32.
- FIGS 10 and 11 show yet another embodiment of the invention wherein transparent window 26 is placed directly across the radiation exit aperture of the reflector 10. Again, substantially transparent window 26 may by design have filtering characteristics with respect to certain wavelength radiation.
- the embodiment shown in Figure 10 utilizes a blower 24 to push air into cooling openings 16 in side closure members 18.
- cooling vent 14 is removed from this embodiment, forcing air through entering through cooling openings 16 to exit through aperture 34 cut along the outer edge of the reflector 10.
- Figure 11 shows the embodiment of Figure 10 with the addition of a second blower 25 located at aperture 34 to pull cooling air out of the reflector 10.
- a second blower 25 located at aperture 34 to pull cooling air out of the reflector 10.
- An additional efficiency of the device is that almost all light emitted by the radiation source 12 is collected from beneath, behind and around the source 12 and reflected in a forward direction rather than back into the source 12. Thus, a lower initial amount of radiation is necessary to achieve desired output levels, reducing energy consumption and undesired heat .
- the device may utilize both pulsed and continuous radiation sources. Pulsed electromagnetic irradiance from this device will have specific advantages over continuous light in the irradiation of biological tissues and in initiating photochemical reactions. These include the following:
- Pulsed irradiance allows for the activation of endogenous and exogenous photochemical reactions important to the treatment of skin diseases such as psoriasis, generation of vitamin D, and other light driven reactions.
- Pulsed irradiance allows for deeper penetration of high intensity electromagnetic energy. When there is a threshold dependent photochemical reaction this will permit the reaction to take place deeper within the surface. The energy is delivered in picosecond to millisecond intervals.
- Pulsed irradiance may be regulated within fractions of a second.
- Pulsed energy which is translated to heat can be dissipated between the pulses. * In conditions where the targeted absorption of electromagnetic irradiation is greater than surrounding tissue, pulsing will enhance the relative heating of the region. For example, dark hair follicles will be selectively heated during pulsing, resulting in destruction of unwanted hair with less discomfort to the surrounding tissue.
- the preferred embodiment of the device utilizes a pulsed Xenon flash tube as the radiation source 12.
- Xenon tubes are rated to last for many years of continuous use, and provide stable output over the years.
- the pulsed Xenon embodiment of the device provides extremely reliable dosimetry.
- FIG. 12 An additional embodiment of the invention utilizing a plurality of radiation sources 36 is shown in Figure 12. This embodiment allows for different wavelength sources 36 to be utilized, ie . single color lights for mixing of hue and temperature of the light at the radiation exit aperture of the reflector 10. It will be understood that the forgoing examples are not by way of limitation of the present invention and that other arrangements also within the scope of the present invention will occur to those skilled in the art upon reading the disclosure set forth herein.
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00944742A EP1200773B1 (en) | 1999-07-09 | 2000-06-20 | Device for soft irradiation |
DE60004859T DE60004859T2 (en) | 1999-07-09 | 2000-06-20 | DEVICE FOR SOFT RADIATION |
DK00944742T DK1200773T3 (en) | 1999-07-09 | 2000-06-20 | Device for soft radiation |
AT00944742T ATE248320T1 (en) | 1999-07-09 | 2000-06-20 | SOFT RADIATION APPARATUS |
CA002378752A CA2378752A1 (en) | 1999-07-09 | 2000-06-20 | Device for soft irradiation |
AU58793/00A AU5879300A (en) | 1999-07-09 | 2000-06-20 | Device for soft irradiation |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14302999P | 1999-07-09 | 1999-07-09 | |
US60/143,029 | 1999-07-09 | ||
US09/586,622 | 2000-06-02 | ||
US09/586,622 US6454442B1 (en) | 1999-07-09 | 2000-06-02 | Device for soft irradiation |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001004538A1 true WO2001004538A1 (en) | 2001-01-18 |
Family
ID=26840615
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2000/016893 WO2001004538A1 (en) | 1999-07-09 | 2000-06-20 | Device for soft irradiation |
Country Status (9)
Country | Link |
---|---|
US (1) | US6454442B1 (en) |
EP (1) | EP1200773B1 (en) |
CN (1) | CN1360672A (en) |
AT (1) | ATE248320T1 (en) |
AU (1) | AU5879300A (en) |
CA (1) | CA2378752A1 (en) |
DE (1) | DE60004859T2 (en) |
DK (1) | DK1200773T3 (en) |
WO (1) | WO2001004538A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1243288A3 (en) * | 2001-03-06 | 2003-11-26 | Kopper, Iris | Cosmetic or medical radiation treatment device |
WO2007112939A2 (en) * | 2006-03-30 | 2007-10-11 | Heraeus Noblelight Gmbh | Solarium |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050219845A1 (en) * | 2004-02-09 | 2005-10-06 | Gregory Cutler | Illumination system with improved optical efficiency |
US20050180141A1 (en) * | 2004-02-13 | 2005-08-18 | Norman Arrison | Protection device for high intensity radiation sources |
US7229192B2 (en) * | 2004-06-18 | 2007-06-12 | Acuity Brands, Inc. | Light fixture and lens assembly for same |
US8220957B2 (en) | 2007-02-12 | 2012-07-17 | Abl Ip Holding Llc | Retrofit light assembly |
US20090244908A1 (en) | 2008-04-01 | 2009-10-01 | Stephen Haight Lydecker | Louver for Light Assembly |
USD640825S1 (en) | 2008-04-24 | 2011-06-28 | Abl Ip Holding Llc | Louver |
USD612534S1 (en) | 2008-04-24 | 2010-03-23 | Abl Ip Holding Llc | Bracket |
AU2012201387B2 (en) * | 2008-09-21 | 2013-12-19 | Syneron Medical Ltd. | A method and apparatus for personal skin treatment |
USD623340S1 (en) * | 2010-03-26 | 2010-09-07 | Orion Energy Systems, Inc. | Reflector for a lighting fixture |
CN103038564B (en) * | 2010-05-22 | 2016-10-19 | 爱德华·斯托纳姆 | Linear wash lamp |
US9115867B2 (en) * | 2010-10-19 | 2015-08-25 | Macdonald, Dettwiler And Associates Inc. | Dual reflector system for linear lamp illuminators |
EP2587562A4 (en) * | 2011-01-14 | 2013-06-12 | Panasonic Corp | Illumination light source |
CN109602561A (en) * | 2013-01-30 | 2019-04-12 | 通用电气公司 | Baby's warming equipment and the method for assembling baby's warming equipment |
KR101484907B1 (en) * | 2013-04-02 | 2015-01-21 | 현대자동차주식회사 | Near-infrared condensing heating unit, near-infrared condensing heating device using the same |
US9383122B2 (en) * | 2013-11-14 | 2016-07-05 | Eduardo Saucedo | Spiral concentrating collector with moving receiver |
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DE2720063A1 (en) * | 1977-05-05 | 1978-11-16 | Original Hanau Quarzlampen | UV and IR radiator reflector - is spiral shaped reflector reproducing logarithmic or other geometric spiral |
EP0067892A1 (en) * | 1981-06-19 | 1982-12-29 | Friedrich Wolff | Device for the emission of light and other radiations |
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US5025356A (en) * | 1988-10-07 | 1991-06-18 | Get Sylvania Canada Ltd | Small profile high wattage horitcultural luminaire |
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DE3536583A1 (en) | 1984-10-12 | 1986-04-17 | Ricoh Co., Ltd., Tokio/Tokyo | LIGHTING DEVICE |
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-
2000
- 2000-06-02 US US09/586,622 patent/US6454442B1/en not_active Expired - Fee Related
- 2000-06-20 WO PCT/US2000/016893 patent/WO2001004538A1/en active IP Right Grant
- 2000-06-20 CA CA002378752A patent/CA2378752A1/en not_active Abandoned
- 2000-06-20 DK DK00944742T patent/DK1200773T3/en active
- 2000-06-20 DE DE60004859T patent/DE60004859T2/en not_active Expired - Fee Related
- 2000-06-20 AT AT00944742T patent/ATE248320T1/en not_active IP Right Cessation
- 2000-06-20 AU AU58793/00A patent/AU5879300A/en not_active Abandoned
- 2000-06-20 CN CN00810153A patent/CN1360672A/en active Pending
- 2000-06-20 EP EP00944742A patent/EP1200773B1/en not_active Expired - Lifetime
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2720063A1 (en) * | 1977-05-05 | 1978-11-16 | Original Hanau Quarzlampen | UV and IR radiator reflector - is spiral shaped reflector reproducing logarithmic or other geometric spiral |
EP0067892A1 (en) * | 1981-06-19 | 1982-12-29 | Friedrich Wolff | Device for the emission of light and other radiations |
US5025356A (en) * | 1988-10-07 | 1991-06-18 | Get Sylvania Canada Ltd | Small profile high wattage horitcultural luminaire |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1243288A3 (en) * | 2001-03-06 | 2003-11-26 | Kopper, Iris | Cosmetic or medical radiation treatment device |
WO2007112939A2 (en) * | 2006-03-30 | 2007-10-11 | Heraeus Noblelight Gmbh | Solarium |
WO2007112939A3 (en) * | 2006-03-30 | 2007-11-22 | Heraeus Noblelight Gmbh | Solarium |
Also Published As
Publication number | Publication date |
---|---|
DE60004859T2 (en) | 2004-07-08 |
EP1200773B1 (en) | 2003-08-27 |
US6454442B1 (en) | 2002-09-24 |
CA2378752A1 (en) | 2001-01-18 |
CN1360672A (en) | 2002-07-24 |
DE60004859D1 (en) | 2003-10-02 |
EP1200773A1 (en) | 2002-05-02 |
AU5879300A (en) | 2001-01-30 |
DK1200773T3 (en) | 2003-10-06 |
ATE248320T1 (en) | 2003-09-15 |
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