CA2140101A1 - Apparatus for light-beam treatment - Google Patents
Apparatus for light-beam treatmentInfo
- Publication number
- CA2140101A1 CA2140101A1 CA002140101A CA2140101A CA2140101A1 CA 2140101 A1 CA2140101 A1 CA 2140101A1 CA 002140101 A CA002140101 A CA 002140101A CA 2140101 A CA2140101 A CA 2140101A CA 2140101 A1 CA2140101 A1 CA 2140101A1
- Authority
- CA
- Canada
- Prior art keywords
- revolution
- ellipsoid
- focus
- concentrator
- light
- 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.)
- Abandoned
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K28/00—Welding or cutting not covered by any of the preceding groups, e.g. electrolytic welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
- B23K26/0643—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms comprising mirrors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
- B23K26/0648—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms comprising lenses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/0665—Shaping the laser beam, e.g. by masks or multi-focusing by beam condensation on the workpiece, e.g. for focusing
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- Radiation-Therapy Devices (AREA)
Abstract
The apparatus for light-beam treatment comprises a radiation concentrator having a reflecting surface which is formed by a first surface of revolution, which is a truncated surface of revolution of a first ellip-soid of revolution, by a second surface which is a truncated surface of revolution of a second ellipsoid of revolution, the concentrator further having an additional reflecting truncated spherical surface located between said first and said second surfaces of revolution. A first and a second focuses of the first ellipsoid of revolution are coincident with a first and a second focuses of the second ellipsoid of revolution. The first focus is an emitting one and a gas-discharge light source is positioned therein, and the second focus is a working focus in which a workpiece being treated is placed.
Description
Field of the Invention The present invention relates to apparatus for preclsion heat treatment of materials, and more parti-5 cularly, to apparatus for light-beam treatment.
It is most advantageous to use the apparatus in automotive industry and other fields ~ for welding thin--sheet structures in automatic and manual modes of operation .
The invention can also find application in repair of automobiles and in welding non-metallic materials.
Background of the Invention There is a problem at present of welding various metallic and non-metallic materials using the technique of contactless power supply In the welding sets considered, used as a power source is a light source and, hence, the welding is actually a light-beam one.
Arc YenOn lamps and quartz-halogen incandescent lamps are used in such welding sets. Radiation emitted by the lamps is focused into a point spot on a workpiece being treated by means of a metal mirror reflectors having an optimum shape of the section of a reflecting surface .
As against the conventional types of heating the surfaces being welded, heating with a light beam features essential advantages. The method makes it possible.
.
It is most advantageous to use the apparatus in automotive industry and other fields ~ for welding thin--sheet structures in automatic and manual modes of operation .
The invention can also find application in repair of automobiles and in welding non-metallic materials.
Background of the Invention There is a problem at present of welding various metallic and non-metallic materials using the technique of contactless power supply In the welding sets considered, used as a power source is a light source and, hence, the welding is actually a light-beam one.
Arc YenOn lamps and quartz-halogen incandescent lamps are used in such welding sets. Radiation emitted by the lamps is focused into a point spot on a workpiece being treated by means of a metal mirror reflectors having an optimum shape of the section of a reflecting surface .
As against the conventional types of heating the surfaces being welded, heating with a light beam features essential advantages. The method makes it possible.
.
2~
- to carry out contactless power supply to a work-piece and to conduct the process of treatment directly in the air and also in an atmosphere of shielding gases and in a vacuum;
S - to weld thin-sheet 0 .1- to 1. 0-mm low-carbon steels used in the body components of automobiles and other facilities in the air without shielding gases;
- to replace gas welding and soldering;
- to carry out heating of both metallic and non--metallic materials, which permits of welding similar and dissimilar materials, glass, ceramics, plastic materials;
- to obtian a sufficiently high energy efficiency of up to 45~ of the electric power supplied Ifor com-parison, the ef~iciency of the best gas lasers is not more than lO~i);
- to have a high degree of adjustability and cont-rollability of heat supply due to both variation of the lamp mode of operation and defocusing;
- to place comparatively low requirements on the proficiency of welding operators, mastering the techni-que of conducting the processes of welding and soldering being rather simple;
- to have a high degree of electrical and eXplosion safety;
- to have an ecologically pure process.
21~101 One of the main problems of improving the apparatus for light-beam welding is reduction of losses of light energy in an emitter itself and actually an increase of the apparatus efficiency.
Kno~n in the art is an apparatus for light-beam treatment (see, for example, US Patent No.3774995, 1973), which comprise6 a reflector and an arc light source, the reflector being shaped as an ellipsoid and the arc light source being placed in the reflector focus.
This apparatus fails to effect concentration of high energy in one point, which hinders its use in welding operations.
It is to be noted that most energetically valuable are zones of the reflector (ellipsoids), which zones are at an angle to the optical axis equal to 90 + 20 and on which the most radiant-intensive flux of the arc light source is incident, in particular, of an arc xenon lamp.
An apparatus i8 known for light-beam treatment (see, for example, US Patent No.4858090, 1989), which comprises an energy concentrator the reflecting surface of which is formed by principal ellipsoids, truncated on the open side, and an additional ellipsoid and a light source. The light sources are located in the first emitting focuses of the three principal ellipsoids and the major axis of the additional ellipsol~ is dispo-sed parallel to a plane in which lie the major axes .
21~
of the principal ellipsoids. The second focuses of the principal ellipsoids are coincident with the focus of the additional ellipsoid.
This apparatus is not sufficLently efficient in 5 conducting welding operations since large energy losses arise because the light source is disposed not in the focus of the additional ellipsoid, and the latter recei- ~ -ves the beams from the principal ellipsoids.
Also known in the art is an apparatus for light-10 -beam treatment (see laid-open FRG Application No.3319562, 1984), which comprises an arc light source and an energy concentrator having an open cavity formed thereinside, which is defined by surfaces of revolution arranged in line and in series and formed by a principal 15 ellipsoid truncated on the open side and conjugated with an additional ellipsoid truncated on two sides.
Said light source is located in an emitting focus coin-cident with the focuses of the additional and principal ellipsoids, and there are also a return r~flector and 20 a light corrector.
Focusing of a light beam on the surface of the material being heated is e~fected by its multiple reflec-tion from said surfaces by means of the return reflec-tor, which results in large energy losses and is a 25 serious disadvantage of the apparatus.
It is, therefore, an object of the present inventi-~ . _ . . ~
2~0101 on to provide an apparatus for light-beam treatment wherein the design of a radiation concentrator allows of increaslng the eficiency of operation of the appara-tus due to reducing the back light fluxes and increasing 5 the degree of utilization of radiation of a gas-dischar-ge light source.
This object is achieved in an apparatus for light-beam treatment, wherein, according to the present invention, a radiation concentrator has a reflecting 10 surface which is made up of two surfaces of revolution, a first surface of revolution is formed by the surface of a first truncated ellipsoid of revolution and a second surface of revolution is formed by the surface of a second truncated ellipsoid of revolution, major 15 axes of said ellipsoids of revolution are colncident, and first and second focuses of said first truncated ellipsoid of revolution are coincident with first and second focuses of said second ellipsoid of revolution, respectively, said first focus being an emitting focus 20 of said radlation concentrator, said second focus being a working focus of said radiation concentrator and intended for locating therein a workpiece being treatea, an outlet opening is positioned between said second focus of said second ellipsoid of revolution and its 25 minor axis, a ga6-discharge light source is located in the emitting focus, the section of said first ellip-soid of revolution is positioned in a first plane . . .
21~0101 perpendicular to the major axis thereof and found petween the emitting focus and the outlet opening, and there is provided an additional reflecting truncated spherical surface having its center coincident with the emitting focus, which surface is positioned between the first surface of revolution and the second surface of revolution.
It i8 preferable that the section of the first ellipsoid of revolution and the first section of the additional truncated reflecting spherical surface be located in one plane and have equal radii.
The design of the apparatus for light-beam treat-ment, according to the invention, makes it possible to increase the spanning angle of the principal ellip-soid up to 180 degrees of arc and more, and to decrease the axial size of the return reflector and the share of its participation in creating a light fLux. All this permits of increasing substantially the efficiency of the apparatus.
Brief DescriptLon of the Drawings A specific embodiment of the invention will now be described in detail with reference to the Ar'~_ Any-ing drawings, in which:
Fig. 1 is a longitudinal section view of an appara-tus for light-beam treatment, according to the invention;
Fig. 2 shows schematically relative positions of ellipses and a circumference which define the section -21~10:~.
of the apparatus for light-beam treatment, according to the invention.
etailed Description of~ a Preferred Embodiment of the Invention An apparatus for light-beam treatment comprises a radiation concentrator 1 (Fig.1) having a reflecting surface made up of a first and a second surfaces of revolution. Said first surface of revolution 2, is formed by the surface of a first truncated ellipsoid 3 (Fig.2) of revoLution, and said second surface of revo-lution, 4, is formed by the surface of a second trun-cated ellipsoid of revolution, 5. Major axes a - a of said first and second ellipsoids of revolution, 3, 5, are coincident and a first and a second focuses, fl, F2, of the first ellipsoid 3 of revolution coincide with a first and a second focuses of the second ellip-soids 5 of revolution, respectively.
The first focus f1 is an emitting focus of the radiation concentrator 1. The second focus f2 is a working focus of the radiation concentrator 1 and is intended for locating therein a workpiece l~eing trea-ted (not shown in Fig. 1) .
An outlet opening 6 of the radiation concentrator 1 is between the second focus f2 f the second ellip-soid 5 of revolution and a minor axis thereof.
A gas-discharge light source 7 (Fig .1 ) is disposed in the emitting focus f 1 of the radiation concentrator 1.
~ 01 The section of the Lrst ellipsoid 3 of revolution is located in a first place C - C which is perpendicu-lar to the major axis of the ellipsoid of revolution, 3, and is found between the emitting focus Fl and the 5 outlet opening 6 of the concentrator.
A second plane D - D is perpendicular to the axis a - a and is found between the first plane C - C and the outlet opening 6 of the concentrator.
An additional reflecting truncated spherical o surface 8 is positioned between the first and second surfaces of revolution, 2, 4, and its center coincides with the emitting focus f 1 of the concentrator 1.
A first section of the spherical surface 8 is in the first place C - C and a second section is in the 6econd 15 plane D - D.
The section of the first ellipsoid 3 of revolution and the first section of the additional truncated reflecting spherical surface 8 are positioned in the first plane C - C. In the embodiment of the invention 20 being disclosed, both said 6ections have e~ual radius R
of the circumference. An embodiment of the invention (shown in a dashed line in Fig.2) is possible, where the circumferences have differen~ radii, in particular, the radius of the spherical surface 8 is larger than 25 the radius of the first ellipsoid section.
The apparatus for light-beam treatment operates as follows.
g _ ~ 2l4olol Light beams f rom the light source are directed to the working focus f2 in four paths.
A first part of the light radiation from the source 7 is incident onto the first surface of revolution, 2, 5 and being reflected therefrom due to the focal location of the source 7 is concentrated in the working focus f2.
This light flux i8 denoted by 11.
A second part of the light radiation gets onto the additional reflecting spherical surface 8 which is 10 positioned such that the light beams reflected therefrom pass through the focus fl and, being reflected from the surface 2 or 3, are concnetrated in the working focus f2. This light flux is denoted by 12.
A third portion of the light radiation from the 15 source 7 is incident onto the second surface of revolu-tion, 4, and, being reflected therefrom, is concentra-ted in the working focus f2. This light flux is denoted by 13.
The fourth light flux is denoted by 14; this flux 20 comprises direct beams which are incident onto the wor-king focus f2 from the source 7.
To reduce manufacturing costs, the concentrator can be made from aluminum alloys with a polished reflec-ting surface. This does not exclude the use of other 25 materials and technologies for the manufacture of the energy concentrator.
Employment in the apparatus of arc xenon lamps in Z140101.
conjunction with the focusing reflector of the present invention ensures obtaining the highest energy densiti-es sufficient for melting most of the structural materi-als. For practical implementation of the invention, use 5 is made of lamps of up to 2 kW in manual portable apparatuses and lamps of up to 10 kW in stationary apparatuses .
The invention i8 intended, and has passed an evalua-tion test in a portable apparatus, for welding thin-10 -sheet structures of steel up to 1.0 mm thick, for high--temperature brazing and low-temperature soldering, welding of plastic materials, heat treatment, melting, removal of old paintwork and other operations invol-ving heating of materials.
i
- to carry out contactless power supply to a work-piece and to conduct the process of treatment directly in the air and also in an atmosphere of shielding gases and in a vacuum;
S - to weld thin-sheet 0 .1- to 1. 0-mm low-carbon steels used in the body components of automobiles and other facilities in the air without shielding gases;
- to replace gas welding and soldering;
- to carry out heating of both metallic and non--metallic materials, which permits of welding similar and dissimilar materials, glass, ceramics, plastic materials;
- to obtian a sufficiently high energy efficiency of up to 45~ of the electric power supplied Ifor com-parison, the ef~iciency of the best gas lasers is not more than lO~i);
- to have a high degree of adjustability and cont-rollability of heat supply due to both variation of the lamp mode of operation and defocusing;
- to place comparatively low requirements on the proficiency of welding operators, mastering the techni-que of conducting the processes of welding and soldering being rather simple;
- to have a high degree of electrical and eXplosion safety;
- to have an ecologically pure process.
21~101 One of the main problems of improving the apparatus for light-beam welding is reduction of losses of light energy in an emitter itself and actually an increase of the apparatus efficiency.
Kno~n in the art is an apparatus for light-beam treatment (see, for example, US Patent No.3774995, 1973), which comprise6 a reflector and an arc light source, the reflector being shaped as an ellipsoid and the arc light source being placed in the reflector focus.
This apparatus fails to effect concentration of high energy in one point, which hinders its use in welding operations.
It is to be noted that most energetically valuable are zones of the reflector (ellipsoids), which zones are at an angle to the optical axis equal to 90 + 20 and on which the most radiant-intensive flux of the arc light source is incident, in particular, of an arc xenon lamp.
An apparatus i8 known for light-beam treatment (see, for example, US Patent No.4858090, 1989), which comprises an energy concentrator the reflecting surface of which is formed by principal ellipsoids, truncated on the open side, and an additional ellipsoid and a light source. The light sources are located in the first emitting focuses of the three principal ellipsoids and the major axis of the additional ellipsol~ is dispo-sed parallel to a plane in which lie the major axes .
21~
of the principal ellipsoids. The second focuses of the principal ellipsoids are coincident with the focus of the additional ellipsoid.
This apparatus is not sufficLently efficient in 5 conducting welding operations since large energy losses arise because the light source is disposed not in the focus of the additional ellipsoid, and the latter recei- ~ -ves the beams from the principal ellipsoids.
Also known in the art is an apparatus for light-10 -beam treatment (see laid-open FRG Application No.3319562, 1984), which comprises an arc light source and an energy concentrator having an open cavity formed thereinside, which is defined by surfaces of revolution arranged in line and in series and formed by a principal 15 ellipsoid truncated on the open side and conjugated with an additional ellipsoid truncated on two sides.
Said light source is located in an emitting focus coin-cident with the focuses of the additional and principal ellipsoids, and there are also a return r~flector and 20 a light corrector.
Focusing of a light beam on the surface of the material being heated is e~fected by its multiple reflec-tion from said surfaces by means of the return reflec-tor, which results in large energy losses and is a 25 serious disadvantage of the apparatus.
It is, therefore, an object of the present inventi-~ . _ . . ~
2~0101 on to provide an apparatus for light-beam treatment wherein the design of a radiation concentrator allows of increaslng the eficiency of operation of the appara-tus due to reducing the back light fluxes and increasing 5 the degree of utilization of radiation of a gas-dischar-ge light source.
This object is achieved in an apparatus for light-beam treatment, wherein, according to the present invention, a radiation concentrator has a reflecting 10 surface which is made up of two surfaces of revolution, a first surface of revolution is formed by the surface of a first truncated ellipsoid of revolution and a second surface of revolution is formed by the surface of a second truncated ellipsoid of revolution, major 15 axes of said ellipsoids of revolution are colncident, and first and second focuses of said first truncated ellipsoid of revolution are coincident with first and second focuses of said second ellipsoid of revolution, respectively, said first focus being an emitting focus 20 of said radlation concentrator, said second focus being a working focus of said radiation concentrator and intended for locating therein a workpiece being treatea, an outlet opening is positioned between said second focus of said second ellipsoid of revolution and its 25 minor axis, a ga6-discharge light source is located in the emitting focus, the section of said first ellip-soid of revolution is positioned in a first plane . . .
21~0101 perpendicular to the major axis thereof and found petween the emitting focus and the outlet opening, and there is provided an additional reflecting truncated spherical surface having its center coincident with the emitting focus, which surface is positioned between the first surface of revolution and the second surface of revolution.
It i8 preferable that the section of the first ellipsoid of revolution and the first section of the additional truncated reflecting spherical surface be located in one plane and have equal radii.
The design of the apparatus for light-beam treat-ment, according to the invention, makes it possible to increase the spanning angle of the principal ellip-soid up to 180 degrees of arc and more, and to decrease the axial size of the return reflector and the share of its participation in creating a light fLux. All this permits of increasing substantially the efficiency of the apparatus.
Brief DescriptLon of the Drawings A specific embodiment of the invention will now be described in detail with reference to the Ar'~_ Any-ing drawings, in which:
Fig. 1 is a longitudinal section view of an appara-tus for light-beam treatment, according to the invention;
Fig. 2 shows schematically relative positions of ellipses and a circumference which define the section -21~10:~.
of the apparatus for light-beam treatment, according to the invention.
etailed Description of~ a Preferred Embodiment of the Invention An apparatus for light-beam treatment comprises a radiation concentrator 1 (Fig.1) having a reflecting surface made up of a first and a second surfaces of revolution. Said first surface of revolution 2, is formed by the surface of a first truncated ellipsoid 3 (Fig.2) of revoLution, and said second surface of revo-lution, 4, is formed by the surface of a second trun-cated ellipsoid of revolution, 5. Major axes a - a of said first and second ellipsoids of revolution, 3, 5, are coincident and a first and a second focuses, fl, F2, of the first ellipsoid 3 of revolution coincide with a first and a second focuses of the second ellip-soids 5 of revolution, respectively.
The first focus f1 is an emitting focus of the radiation concentrator 1. The second focus f2 is a working focus of the radiation concentrator 1 and is intended for locating therein a workpiece l~eing trea-ted (not shown in Fig. 1) .
An outlet opening 6 of the radiation concentrator 1 is between the second focus f2 f the second ellip-soid 5 of revolution and a minor axis thereof.
A gas-discharge light source 7 (Fig .1 ) is disposed in the emitting focus f 1 of the radiation concentrator 1.
~ 01 The section of the Lrst ellipsoid 3 of revolution is located in a first place C - C which is perpendicu-lar to the major axis of the ellipsoid of revolution, 3, and is found between the emitting focus Fl and the 5 outlet opening 6 of the concentrator.
A second plane D - D is perpendicular to the axis a - a and is found between the first plane C - C and the outlet opening 6 of the concentrator.
An additional reflecting truncated spherical o surface 8 is positioned between the first and second surfaces of revolution, 2, 4, and its center coincides with the emitting focus f 1 of the concentrator 1.
A first section of the spherical surface 8 is in the first place C - C and a second section is in the 6econd 15 plane D - D.
The section of the first ellipsoid 3 of revolution and the first section of the additional truncated reflecting spherical surface 8 are positioned in the first plane C - C. In the embodiment of the invention 20 being disclosed, both said 6ections have e~ual radius R
of the circumference. An embodiment of the invention (shown in a dashed line in Fig.2) is possible, where the circumferences have differen~ radii, in particular, the radius of the spherical surface 8 is larger than 25 the radius of the first ellipsoid section.
The apparatus for light-beam treatment operates as follows.
g _ ~ 2l4olol Light beams f rom the light source are directed to the working focus f2 in four paths.
A first part of the light radiation from the source 7 is incident onto the first surface of revolution, 2, 5 and being reflected therefrom due to the focal location of the source 7 is concentrated in the working focus f2.
This light flux i8 denoted by 11.
A second part of the light radiation gets onto the additional reflecting spherical surface 8 which is 10 positioned such that the light beams reflected therefrom pass through the focus fl and, being reflected from the surface 2 or 3, are concnetrated in the working focus f2. This light flux is denoted by 12.
A third portion of the light radiation from the 15 source 7 is incident onto the second surface of revolu-tion, 4, and, being reflected therefrom, is concentra-ted in the working focus f2. This light flux is denoted by 13.
The fourth light flux is denoted by 14; this flux 20 comprises direct beams which are incident onto the wor-king focus f2 from the source 7.
To reduce manufacturing costs, the concentrator can be made from aluminum alloys with a polished reflec-ting surface. This does not exclude the use of other 25 materials and technologies for the manufacture of the energy concentrator.
Employment in the apparatus of arc xenon lamps in Z140101.
conjunction with the focusing reflector of the present invention ensures obtaining the highest energy densiti-es sufficient for melting most of the structural materi-als. For practical implementation of the invention, use 5 is made of lamps of up to 2 kW in manual portable apparatuses and lamps of up to 10 kW in stationary apparatuses .
The invention i8 intended, and has passed an evalua-tion test in a portable apparatus, for welding thin-10 -sheet structures of steel up to 1.0 mm thick, for high--temperature brazing and low-temperature soldering, welding of plastic materials, heat treatment, melting, removal of old paintwork and other operations invol-ving heating of materials.
i
Claims (2)
1. An apparatus for light-beam treatment, which comprises a radiation concentrator having a reflecting surface which is made up of a first and a second surfaces of revolution, said first surface of revolution being formed by the surface of a first truncated ellipsoid of revolution and said second surface of revolution being formed by the surface of a second truncated ellipsoid of revolution, the major axes of said first and said second ellipsoids of revolution are coincident and first and second focuses of said first ellipsoid of revolution are coincident with first and second focu-ses of said second ellipsoid of revolution, respectively, said first focus which is an emitting focus of said radiation concentrator, said second focus which is a working focus of said radiation concentrator and is intended for locating therein a workpiece being treated, an outlet opening of said radiation concentrator located between said second focus of said second ellipsoid of revolution and its minor axis, A gas-discharge light source positioned in said emitting focus of said radiation concentrator, a first plane perpendicular to the major axis of said first ellipsoid of revolution and found between said emitting focus and said outlet opening of the concentrator, a seciton of said first ellipsoid of revolution located in said first plane, a second plane perpendicular to the major axis of said first ellipsoid and located between said first plane and said outlet opening of the concentrator, an additional reflecting truncated spherical sur-face having its center coincident with the emitting focus of said radiation concentrator, said additional reflecting surface being positioned between said first surface of revolution and said second surface of revolu-tion a first section of which is in said first plane and a second section of which is in said second plane.
2. An apparatus as claimed in Claim 1, wherein said section of the first ellipsoid of revolution and said first section of the additional truncated ref-lecting spherical surface, both positioned in said first plane, have equal radius of the circumference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002140101A CA2140101A1 (en) | 1995-01-12 | 1995-01-12 | Apparatus for light-beam treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002140101A CA2140101A1 (en) | 1995-01-12 | 1995-01-12 | Apparatus for light-beam treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2140101A1 true CA2140101A1 (en) | 1996-07-13 |
Family
ID=4155034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002140101A Abandoned CA2140101A1 (en) | 1995-01-12 | 1995-01-12 | Apparatus for light-beam treatment |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2140101A1 (en) |
-
1995
- 1995-01-12 CA CA002140101A patent/CA2140101A1/en not_active Abandoned
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| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |