EP0072303A1 - Scheinwerfer mit auf Scheiben montierten Farbschirmen - Google Patents
Scheinwerfer mit auf Scheiben montierten Farbschirmen Download PDFInfo
- Publication number
- EP0072303A1 EP0072303A1 EP82401433A EP82401433A EP0072303A1 EP 0072303 A1 EP0072303 A1 EP 0072303A1 EP 82401433 A EP82401433 A EP 82401433A EP 82401433 A EP82401433 A EP 82401433A EP 0072303 A1 EP0072303 A1 EP 0072303A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- disc
- motor
- color
- common
- projector according
- 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.)
- Withdrawn
Links
Images
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
- F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
- F21V9/40—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters with provision for controlling spectral properties, e.g. colour, or intensity
-
- 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
- F21W2131/40—Lighting for industrial, commercial, recreational or military use
- F21W2131/406—Lighting for industrial, commercial, recreational or military use for theatres, stages or film studios
Definitions
- the present invention relates to a projector with colored screens selectively interposed on the light beam of a light source and mounted on at least one rotating disc driven by a motor device.
- each projector In order not to prohibitively multiply the number of projectors used, each projector must be able to selectively project several colors, including in general the color white. On the other hand, it is requested by users that the transition between two colors is done without letting appear "white” (or any other color deemed undesirable).
- the object of the invention is to overcome the drawbacks encountered so far by proposing a projector of the type already mentioned, silent, and allowing a change of colors without intermediate "white".
- each disc comprises exclusively three colored sectors, one color of which is common to all the discs, and that the drive device of each disc is associated with a control device so as to make turn the disc by an increment corresponding to the passage of the colored sector crossed by the light beam to the new colored sector chosen to be crossed by the light beam by the angular path the shorter, whereby the transition from a color different from the common color to another color, different from the common color, is done without going through the common color.
- the number of discs of the projector depends on the number of colors desired for the projector.
- the presence of a disc allows the projection of two colors in addition to white
- the presence of two discs allows the projection of four pure colors, in addition to white plus four colors of combinations
- n discs allow the projection of 2n pure colors in addition to white, without counting the 2 n colors of combinations.
- each disc comprises three sectors and only three, and that the discs can rotate in one direction or the other so that the change of the sector interposed in the light beam to another sector , necessarily neighboring by construction, is done by the shortest path, one is sure to be able to pass from one color to another without going through the white color occupying one of the three sectors.
- the invention resides in the fact that only three colors, including white, have been placed on each disc, generally in a regular manner (that is to say on three sectors of 120 °) although that it is not an obligation, and that, moreover, the rotation of the disc for the change of colors is done in increments of 120 ° (if the arrangement is regular) positively or negatively to reach the new color.
- the drive motor of the disc and its associated control device consist of three electromagnetic coils distributed around a central core integral with the axis of the disc, the supply of these coils being done selectively using a keyboard.
- the shorter angular path is always taken, inherently in the very design of the system.
- the disk drive device can comprise a stepping motor and a peripheral drive roller for the disk, or else a motor coupled directly or indirectly to the axis of the disk.
- the first solution is less bulky when the projector has several successive discs.
- the control of the rotation (and / or the position) of the disc acting through suitable electronics on the control in one direction or the other of the motor, can be done by optical reading, by clock, by potentiometer or other.
- FIG. 1 shows a disc 1 comprising three sectors 2, 3, 4 regularly distributed and entirely or partially occupied by colored screens 5, 6, 7 one of which, for example 5, is white in color (deemed undesirable for transitions).
- a light beam not shown, crosses one of the three sectors.
- the disc 1 can rotate freely on its axis 8.
- Three electromagnetic coils 9, 10, 11 are arranged fixed around the axis 8, distributed at 120 °. These coils are connected, on the one hand to earth O and, on the other hand, to a common supply A through three conductors 12, 13, 14 interrupted by switches 15, 16, 17. These switches are controlled from conventionally by a selective keyboard, the closing of a switch automatically unlocking the previously closed switch.
- the disc 1 pivots about its axis 8 under the action of a peripheral roller 18 driven by a motor 19.
- the control of this motor 19 in one direction or the other is done through conventional electronics 20 in response to manual or programmed positioning instructions on the one hand, and to the result of a digital count indicating the position, carried out by means of a photoelectric cell 21 detecting the passage of a light beam in holes 22 distributed over the entire periphery 23 of the disc 1.
- a clock 24 replaces the optical control for controlling the motor 19.
- the axis 8 of the disc 1 is coupled on the one hand to the motor 19 supported by a chassis 25, and, on the other hand, to a feedback potentiometer 26, also supported by the chassis 25, whose disc position indications are transmitted to the electronics 20 for controlling the motor 19.
- FIG. 5 shows several disks 1a, 1b and 1c mounted on axes 8a, 8b, 8c, aligned on the right 27 and coupled to feedback potentiometers 26a, 26b, 26c for the control of their rotation.
- the potentiometers are supported by supports 27a, 27b, 27c which also carry the motors 19 with rollers 18.
- a light beam 28 successively crosses the three discs la, Ib, lc, and the selective interposition of the colored filters allows obtaining, in addition to the white color that carries a filter of each disc, six pure colors and eight combination colors.
- the projector of the invention is a compact projector, silent thanks to its design and that it avoids unwanted whites when switching from one color to another.
- each motor requires a positive wire and a negative wire, a common neutral wire being able to be provided for all the discs.
- the cabling of a device according to the invention comprises only seven wires (for the embodiment of FIG. 5), while that of a conventional device with six controlled filters by cylinders requires more.
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Projection Apparatus (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8115053 | 1981-08-03 | ||
FR8115053A FR2510719A1 (fr) | 1981-08-03 | 1981-08-03 | Projecteur a ecrans colores sur disques |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0072303A1 true EP0072303A1 (de) | 1983-02-16 |
Family
ID=9261117
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP82401433A Withdrawn EP0072303A1 (de) | 1981-08-03 | 1982-07-30 | Scheinwerfer mit auf Scheiben montierten Farbschirmen |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0072303A1 (de) |
JP (1) | JPS5846501A (de) |
ES (1) | ES8305480A1 (de) |
FR (1) | FR2510719A1 (de) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0260895A2 (de) * | 1986-09-11 | 1988-03-23 | Starlite Technology Limited | Beleuchtungsvorrichtung |
EP0399496A1 (de) * | 1989-05-24 | 1990-11-28 | Morpheus Lights, Inc. | Selektierbares, mechanisches und elektronisches Muster generierendes Öffnungsmodul |
GB2290133A (en) * | 1994-06-07 | 1995-12-13 | Robert James Clutterham | Lighting effect producing device |
EP0685681A3 (de) * | 1994-05-31 | 1997-08-27 | Sanyo Electric Co | Vorrichtung zum Beleuchten mittels Sonnenlicht und Steuereinrichtung für eine solche Vorrichtung. |
GB2311172A (en) * | 1996-02-20 | 1997-09-17 | Mad Lighting Ltd | Low-torque,interchangable-rotor electric motor |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2511454Y2 (ja) * | 1992-04-17 | 1996-09-25 | オーデリック株式会社 | 投光表示装置 |
ES2066654B1 (es) * | 1992-06-04 | 1998-05-01 | Llorente Burgueno Maria Angele | Sistema de proyectores sumergibles de iluminacion multicolor. |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1453240A (fr) * | 1964-08-31 | 1966-06-03 | Perfectionnement pour lampe à éclairage réglable | |
GB1036900A (en) * | 1963-05-18 | 1966-07-20 | Ivor David Martin | Improvements in or relating to lamps for producing coloured light |
-
1981
- 1981-08-03 FR FR8115053A patent/FR2510719A1/fr active Granted
-
1982
- 1982-07-28 ES ES82514474A patent/ES8305480A1/es not_active Expired
- 1982-07-30 EP EP82401433A patent/EP0072303A1/de not_active Withdrawn
- 1982-08-03 JP JP57134811A patent/JPS5846501A/ja active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1036900A (en) * | 1963-05-18 | 1966-07-20 | Ivor David Martin | Improvements in or relating to lamps for producing coloured light |
FR1453240A (fr) * | 1964-08-31 | 1966-06-03 | Perfectionnement pour lampe à éclairage réglable |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0260895A2 (de) * | 1986-09-11 | 1988-03-23 | Starlite Technology Limited | Beleuchtungsvorrichtung |
EP0260895A3 (de) * | 1986-09-11 | 1989-07-26 | Starlite Technology Limited | Beleuchtungsvorrichtung |
EP0399496A1 (de) * | 1989-05-24 | 1990-11-28 | Morpheus Lights, Inc. | Selektierbares, mechanisches und elektronisches Muster generierendes Öffnungsmodul |
US5113332A (en) * | 1989-05-24 | 1992-05-12 | Morpheus Lights, Inc. | Selectable mechanical and electronic pattern generating aperture module |
EP0685681A3 (de) * | 1994-05-31 | 1997-08-27 | Sanyo Electric Co | Vorrichtung zum Beleuchten mittels Sonnenlicht und Steuereinrichtung für eine solche Vorrichtung. |
GB2290133A (en) * | 1994-06-07 | 1995-12-13 | Robert James Clutterham | Lighting effect producing device |
GB2311172A (en) * | 1996-02-20 | 1997-09-17 | Mad Lighting Ltd | Low-torque,interchangable-rotor electric motor |
GB2311172B (en) * | 1996-02-20 | 2000-04-19 | Mad Lighting Ltd | Low-torque,interchangable-rotor electric motor |
Also Published As
Publication number | Publication date |
---|---|
FR2510719B1 (de) | 1984-01-06 |
JPS5846501A (ja) | 1983-03-18 |
FR2510719A1 (fr) | 1983-02-04 |
ES514474A0 (es) | 1983-04-16 |
ES8305480A1 (es) | 1983-04-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR2737917A1 (fr) | Dispositif d'eclairage pour vehicules a faisceau reglable | |
FR2731084A1 (fr) | Procede et dispositif de commande de miroir dans un reseau de micro-miroirs | |
EP0072303A1 (de) | Scheinwerfer mit auf Scheiben montierten Farbschirmen | |
CH625646A5 (en) | Electromagnetic motor with two directions of rotation | |
EP0119910B1 (de) | Schwenkverfahrensvorrichtung für einen Untersuchungstisch | |
FR2676826A1 (fr) | Mecanisme de mise en óoeuvre de barillet d'objectif. | |
EP0109328B1 (de) | Anzeigematrix mit Lichtfasern | |
JPS63311319A (ja) | 波長可変フィルタ | |
FR2590965A1 (fr) | Feu de signalisation a deux etats d'eclairement pour vehicule tel qu'un vehicule automobile | |
FR2462753A1 (fr) | Teleindicateur pour tableaux d'information | |
CA1266973A (fr) | Dispositif d'affichage lumineux | |
FR2546271A1 (fr) | Procede et dispositif pour la coloration d'un faisceau lumineux | |
FR2631684A1 (fr) | Dispositif de coloration de faisceau lumineux | |
EP0125991B1 (de) | Steuerknüppel für Konsole | |
EP0170618B1 (de) | Vorrichtung für die Erzeugung mindestens einer farbigen Oberfläche auf einer photographischen Emulsion | |
EP0676739A1 (de) | Lichtleitfaser-Anzeigematrix, bei der die Fasern mittels Scheiben mit einer Vielzahl von Sektoren verdeckt werden | |
EP3827455B1 (de) | Steuerungsmodul mit kippschaltern | |
WO1992000541A1 (fr) | Bati mecanique articule, notamment pour episcope, et episcope monte sur un tel bati | |
EP0554170A1 (de) | Mechanische Vorrichtung mit veränderlicher resistiver Schaltung zur Steuerung einer Last, insbesondere eines Elektromotors | |
FR2623302A1 (fr) | Objectif pour camera de television | |
WO2024052509A1 (fr) | Dispositif lumineux pour projeter une image sur le sol autour d'un véhicule | |
FR3139374A1 (fr) | Dispositif lumineux pour projeter une image sur le sol autour d'un véhicule | |
CH672686A5 (de) | ||
FR2477744A2 (fr) | Appareil lumineux a panneaux transparents illumines par leur tranche | |
FR2495420A1 (fr) | Chaine de roentgentelevision a amplificateur de luminance, comportant un diaphragme pour le flux lumineux |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Designated state(s): AT BE CH DE GB IT LI LU NL SE |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19840130 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: LECLERCQ, DIDIER JEAN-PIERRE |