WO1998014732B1 - Projector device for a multi-colour light beam - Google Patents
Projector device for a multi-colour light beamInfo
- Publication number
- WO1998014732B1 WO1998014732B1 PCT/EP1997/004974 EP9704974W WO9814732B1 WO 1998014732 B1 WO1998014732 B1 WO 1998014732B1 EP 9704974 W EP9704974 W EP 9704974W WO 9814732 B1 WO9814732 B1 WO 9814732B1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- reflecting surface
- light
- tubular wall
- source
- tubular
- Prior art date
Links
- 239000000463 material Substances 0.000 claims abstract 8
- 239000003086 colorant Substances 0.000 claims 2
- 238000001816 cooling Methods 0.000 claims 1
- 230000001795 light effect Effects 0.000 claims 1
Abstract
The device comprises at least one tubular wall (31) of a material able to filter colour from the light, and arranged, when set in its active position, to laterally embrace the projector light source (10) so as to be traversed by the light before this reaches the reflector means (20); said tubular wall (31) can be moved from said active position to an inactive position in which it does not interfere with the radiation emitted by the source (10) and directed towards the reflector means (20), and vice versa.
Claims
AMENDED CLAIMS
[received by the International Bureau on 30 April 1998 (30.04.98); original claim 1 amended; original claim 2 cancelled; new claims 8, 9 and 10 added; original claims 3-7 renumbered as claims 2-6, original claim 8 amended and renumbered as claim 7; (3 pages)]
1 A light beam projector device, comprising a light source and reflector means arranged to direct the light originating from the source in such a manner as to form a light beam, wherein said reflector means (20) comprise a curved concave reflecting surface at the geometrical focus of which there is positioned the light source (10), characterised by comprising: at least one tubular wall (31) of a material able to filter colour from the light, and arranged, when set in its active position, to laterally embrace the light source (10) so as to be traversed by the light before this reaches the reflecting surface (20), said tubular wall (31) being arranged with its axis substantially coinciding with the axis of the reflecting surface (20), actuator means (44, 45, 145) able to axially move said tubular wall (31), into said active position or to an inactive position, below the reflecting surface (20), in which it does not interfere with the radiation emitted by the source (10) and directed towards the reflecting surface (20), and to intermediate positions in which only a part of the tubular wall (31) is traversed by the light, and a second tubular wall, or at least a tubular wall segment, positioned coaxially with the first tubular wall (31) arranged when in its active position to laterally embrace the light source (10) so as to intercept the radiation emitted by the light source (10), the second tubular wall or wall segment being of transparent material with its surface suitably treated physically to diffuse the radiation before it reaches the reflecting surface (20).
2. A device as claimed in claim 1, characterised by comprising a plurality of said tubular walls (31) positioned coaxially one within another and close together, each being dedicated to supplying a different colour to the light which passes through it, the tubular walls (31) being arranged to be moved independently of each other, and to create in mutual combination a plurality of different colours.
3. A device as claimed in claim 1, characterised by comprising a fixed tubular transparent-material wall (32) coaxial with the others, which embraces 11
the light source (10) and forms a passage corridor for the cooling air which grazes the light source (10).
4 A device as claimed in claim 3, characterised in that the movable tubular walls (31) are substantially in mutual contact on said fixed tubular wall (32).
5. A device as claimed in claim 1, characterised by comprising, as a dimmer device, a said tubular wall of opaque material arranged when in its active position to embrace the light source (10) so as to intercept the radiation emitted by the source (10) and prevent it from reaching the reflecting surface (20), said tubular wall being able to be moved from said active position to a lower inactive position in which it does not interfere with the radiation emitted by the source (10) and directed towards the reflector means (20), and vice versa.
6. A device as claimed in claim 2, characterised by comprising actuator means (44, 45, 145) arranged to vertically move respective tubular supports (41, 141) which carry respective tubular walls (31).
7. A device as claimed in claim 1, characterised by that said tubular wall, or segment thereof, which has its surface treated to diffuse the radiation, is able to be moved from said active position to a lower inactive position in which it does not interfere with the radiation emitted by the source (10) and directed towards the reflecting surface (20), and vice versa.
8. A light beam projector device, comprising a light source and reflector means arranged to direct the light originating from the source in such a manner as to form a light beam, wherein said reflector means (20) comprise a curved concave reflecting surface at the geometrical focus of which there is positioned the light source (10), comprising a plurality of tubular walls (31) of a material able to filter colour from the light, each being dedicated to supplying a different colour to the light which passes through it, positioned coaxially one within another and close together, arranged 12
with their axis substantially coinciding with the axis of the reflecting surface
(20), said tubular walls (31) being arranged, when set in their active position, to laterally embrace the projector light source (10) so as to be traversed by the light before this reaches the reflecting surface (20), and being arranged to be moved independently of each other, and to create in mutual combination a plurality of different colours. actuator means (44, 45, 145) able to axially move said tubular walls (31), into said active position or to an inactive position, below the reflecting surface (20),in which it does not interfere with the radiation emitted by the source (10) and directed towards the reflecting surface (20), and in intermediate positions in which only a part of the tubular wall (31) is traversed by the light, the other part being positioned below the reflecting surface (20).
9. A device as claimed in claim 8, characterised by comprising, to obtain a diffused frosted light effect, a said tubular wall, or at least a tubular wall segment, of transparent material physically, arranged when in its active position to embrace the light source (10) so as to intercept the radiation emitted by the source (10) and before it reaches the reflecting surface (20), said tubular wall, or segment thereof, having its surface treated to diffuse the radiation, and being able to be moved from said active position to a lower inactive position in which it does not interfere with the radiation emitted by the source (10) and directed towards the reflecting surface (20), and vice versa.
10. A device as claimed in claim 8, characterised by comprising, as a dimmer device, a said tubular wall of opaque material arranged when in its active position to embrace the light source (10) so as to intercept the radiation emitted by the source (10) and prevent it from reaching the reflecting surface (20), said tubular wall being able to be moved from said active position to a lower inactive position in which it does not interfere with the radiation emitted by the source (10) and directed towards the reflecting surface (20), and vice versa.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP97942018A EP0929776B1 (en) | 1996-10-02 | 1997-09-10 | Projector device for a multi-colour light beam |
| DK97942018T DK0929776T3 (en) | 1996-10-02 | 1997-09-10 | Projector for a multi-colored light beam |
| AU43845/97A AU4384597A (en) | 1996-10-02 | 1997-09-10 | Projector device for a multi-colour light beam |
| CA002267321A CA2267321C (en) | 1996-10-02 | 1997-09-10 | Projector device for a multi-colour light beam |
| AT97942018T ATE237782T1 (en) | 1996-10-02 | 1997-09-10 | PROJECTION DEVICE FOR A MULTI-COLOURED BEAM OF LIGHT |
| DE69721025T DE69721025T2 (en) | 1996-10-02 | 1997-09-10 | PROJECTION DEVICE FOR A VARIOUS COLORED BUNCH OF LIGHT |
| US09/269,274 US6161945A (en) | 1996-10-02 | 1997-09-10 | Projector device for a multi-color light beam |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT96RE000078A IT1287824B1 (en) | 1996-10-02 | 1996-10-02 | PROJECTOR DEVICE OF A LUMINOUS BEAM WITH VARIABLE COLORS |
| ITRE96A000078 | 1996-10-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO1998014732A1 WO1998014732A1 (en) | 1998-04-09 |
| WO1998014732B1 true WO1998014732B1 (en) | 1998-06-11 |
Family
ID=11398949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP1997/004974 WO1998014732A1 (en) | 1996-10-02 | 1997-09-10 | Projector device for a multi-colour light beam |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US6161945A (en) |
| EP (1) | EP0929776B1 (en) |
| CN (1) | CN1104586C (en) |
| AT (1) | ATE237782T1 (en) |
| AU (1) | AU4384597A (en) |
| CA (1) | CA2267321C (en) |
| DE (1) | DE69721025T2 (en) |
| DK (1) | DK0929776T3 (en) |
| IT (1) | IT1287824B1 (en) |
| WO (1) | WO1998014732A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITTO20020371A1 (en) * | 2002-05-06 | 2003-11-06 | Bruno Baiardi | LIGHT PROJECTOR WITH SET OF ROTATING FILTERS AROUND YOUR OWN AXIS. |
| US20060119243A1 (en) * | 2004-12-06 | 2006-06-08 | Lovvorn Andrew R | Burner assembly |
| WO2008092503A1 (en) * | 2007-01-31 | 2008-08-07 | Osram Gesellschaft mit beschränkter Haftung | Reflector lamp |
| US10119676B2 (en) * | 2016-06-10 | 2018-11-06 | Osram Gmbh | Lighting device, corresponding lamp and method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US437178A (en) * | 1890-09-30 | Wire-stretcher | ||
| US3703635A (en) * | 1970-09-08 | 1972-11-21 | E Systems Inc | Zoom light |
| US4373178A (en) * | 1980-11-03 | 1983-02-08 | Koehler Manufacturing Company | Methods and apparatus for controlling reflected light |
| DE3908148A1 (en) * | 1989-03-13 | 1990-09-20 | Acr Braendli & Voegeli Ag | Colour changer for an illumination device |
| US5165781A (en) * | 1991-12-05 | 1992-11-24 | Zeki Orak | Flashlight with color producing chambers |
| US5353211A (en) * | 1993-07-20 | 1994-10-04 | Merko Andrew V | Light modifier |
| US5642931A (en) * | 1996-01-18 | 1997-07-01 | Taxiwand Inc. | Taxi wand |
-
1996
- 1996-10-02 IT IT96RE000078A patent/IT1287824B1/en active IP Right Grant
-
1997
- 1997-09-10 WO PCT/EP1997/004974 patent/WO1998014732A1/en active IP Right Grant
- 1997-09-10 US US09/269,274 patent/US6161945A/en not_active Expired - Lifetime
- 1997-09-10 EP EP97942018A patent/EP0929776B1/en not_active Expired - Lifetime
- 1997-09-10 CN CN97198526.XA patent/CN1104586C/en not_active Expired - Fee Related
- 1997-09-10 AT AT97942018T patent/ATE237782T1/en not_active IP Right Cessation
- 1997-09-10 DK DK97942018T patent/DK0929776T3/en active
- 1997-09-10 CA CA002267321A patent/CA2267321C/en not_active Expired - Fee Related
- 1997-09-10 DE DE69721025T patent/DE69721025T2/en not_active Expired - Lifetime
- 1997-09-10 AU AU43845/97A patent/AU4384597A/en not_active Abandoned
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