EP1158239A1 - Projecteur, notamment pour projecter des images à dimensions variables et de couleurs quelconques - Google Patents

Projecteur, notamment pour projecter des images à dimensions variables et de couleurs quelconques Download PDF

Info

Publication number
EP1158239A1
EP1158239A1 EP00119304A EP00119304A EP1158239A1 EP 1158239 A1 EP1158239 A1 EP 1158239A1 EP 00119304 A EP00119304 A EP 00119304A EP 00119304 A EP00119304 A EP 00119304A EP 1158239 A1 EP1158239 A1 EP 1158239A1
Authority
EP
European Patent Office
Prior art keywords
projector according
color
sectors
light beam
projector
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Withdrawn
Application number
EP00119304A
Other languages
German (de)
English (en)
Inventor
Bruno Dedoro
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Coemar SpA
Original Assignee
Coemar SpA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Coemar SpA filed Critical Coemar SpA
Publication of EP1158239A1 publication Critical patent/EP1158239A1/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S10/00—Lighting devices or systems producing a varying lighting effect
    • F21S10/02—Lighting devices or systems producing a varying lighting effect changing colors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S10/00—Lighting devices or systems producing a varying lighting effect
    • F21S10/007—Lighting devices or systems producing a varying lighting effect using rotating transparent or colored disks, e.g. gobo wheels
    • 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
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/16—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using sheets without apertures, e.g. fixed
    • F21V11/18—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using sheets without apertures, e.g. fixed movable, e.g. flaps, slides

Definitions

  • the present invention relates to a projector particularly for projecting images in variable dimensions and in infinite colors.
  • Conventional projectors used for example in the field of show business generally comprise a light source on the light beam whereof a filtering element is interposed in order to provide the intended coloring.
  • the aim of the present invention is to eliminate the above-described drawbacks, by providing a projector particularly for projecting images in variable dimensions and in infinite colors which allows to obtain, with structurally simple means, an infinite range of colors, allowing to combine in the various shades the three complementary colors, i.e., cyan, magenta and yellow.
  • an object of the present invention is to provide a projector which allows to vary at will the dimensions of the resulting image and to provide said variation continuously and simply.
  • Another object of the present invention is to provide a projector which is particularly versatile and capable of combining the possibility of obtaining an infinite color range and of modifying the dimensions of the image and of combining their shape at will.
  • Another object of the present invention is to provide a projector, particularly for projecting images in variable dimensions and infinite colors, which thanks to its particular constructive characteristics is capable of giving the greatest assurances of reliability and safety in use.
  • a projector particularly for projecting images in variable dimensions and infinite colors which comprises, on a light beam emitted by a light source, a color changer, characterized in that said color changer is interposed between said light source and an image focusing unit.
  • the projector particularly for projecting images in variable dimensions and infinite colors comprises a light source 2, constituted by a high-power discharge lamp which emits an unfocused light beam 3.
  • a color changer Downstream of the source 2 there is provided a color changer, generally designated by the reference numeral 4, which is constituted by a mechanical system with six motors, two for each complementary color (cyan, magenta and yellow), and there is also provided a dimmer designated by the reference numeral 5; with this arrangement, an unfocused beam of light is projected onto the color changer.
  • the color changer 4 has, for each complementary color, two sectors 10 which are arranged symmetrically with respect to each other and are provided with a central body 11 which can engage a rotation pivot 12.
  • a toothed sector 13 is connected to the central body 11 and meshes with the gear 14 of a corresponding actuation motor.
  • a glass plate 15 of the type capable of withstanding high temperatures and on which a portion is provided which is colored in a complementary color and in practice forms a dichroic film which is laser-etched so as to have a contour having a particular pattern.
  • the colored portions 16 have a continuous covering layer 16a which has, on its edge directed toward the other sector, comb-shaped protrusions 16b.
  • the sectors 10 can be interposed along the light beam 3 so as to produce a coloring which depends on the arrangement of the sector in the light beam.
  • the comb-shaped protrusions of the two sectors are shaped complementarily, so that when the two sectors are completely mutually superimposed the light beam is completely colored, while the gradual spacing of the sectors causes the light beam, which is unfocused, to produce a coloring whose intensity decreases gradually as the sectors move apart, until they are mutually separated and therefore not interposed on the light beam.
  • the presence of the dimmer allows to adjust the luminous output at will.
  • the dimmer is provided by means of sectors which are shaped exactly like the above described sectors regarding the color changer, the only difference being that the two complementary sectors are constituted by sheet-like elements made of metal plate or the like which are optically black, so that it is possible to achieve a continuous variation in light intensity.
  • the color changer is interposed between the light source and a focusing unit, generally designated by the reference numeral 21.
  • An iris diaphragm and a rotating unit are arranged between the color changer and the focusing unit; the rotating unit is provided with a first gobo 23 and a second gobo 24, one for fixed images and one for rotating images, which can be selectively interposed on the light beam; correspondingly, the focusing unit 21 has a first doublet 22 which arranges itself so as to correspond with the iris diaphragm 20, and a second achromatic doublet 25 for focusing the gobos or masks 23 and 24.
  • the iris diaphragm is motorized, and its internal laminas assume different diameters; when one of the contours (gobos) fitted on the wheels 23 and 24 is inserted on the optical plane, the iris diaphragm opens and the projected images is the projection of the contour of the gobo inserted in the light beam with the wheels 23 or 24.
  • the lenses 22 and 25 are supported by a rotating disk 26 which can be actuated automatically in combination with the movement of the rotating assembly; moreover, the disk 26 can have a lens-free passage to obtain maximum luminous output, achieving particular effects.
  • the rotating disk 26 can be actuated manually in order to obtain any combination of effects.
  • a prism wheel 28 which can support rotating and fixed prisms and is also provided with a through opening in order to provide its functional disconnection.
  • the zoom 30 comprises a first lens set 31 and a second lens set 32 in which the first set 31 has two double-convex lenses and the second unit has a double-concave lens.
  • the sets 31 and 32 are slidingly mounted on a guide which is designated by the reference numeral 40.
  • the first set is connected to a first belt 41 which is actuated by a first variation motor 42 of the step type, while the second set 31 is connected to a second belt 43 which is connected to a second variation motor 44 of the step type.
  • the mutually independent actuation of the motors 42 and 44 causes, by means of the translatory motion of the corresponding belts 41 and 43, the sliding of the units 31 and 32 on the guiding bar 40, thus allowing to provide a zoom with a projection angle between 7 and 69 degrees.
  • Another important aspect of the present invention is constituted by the fact that the projector has very small dimensions, thanks to the particularly sophisticated embodiment of the assembly.
  • the materials employed, as well as the contingent shapes and dimensions may be any according to requirements.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Projection Apparatus (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
EP00119304A 2000-05-22 2000-09-06 Projecteur, notamment pour projecter des images à dimensions variables et de couleurs quelconques Withdrawn EP1158239A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2000MI001132A IT1317661B1 (it) 2000-05-22 2000-05-22 Proiettore luminoso particolarmente per la proiezione di immagini adimensioni variabili e ad infiniti colori
ITMI201132 2000-05-22

Publications (1)

Publication Number Publication Date
EP1158239A1 true EP1158239A1 (fr) 2001-11-28

Family

ID=11445096

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00119304A Withdrawn EP1158239A1 (fr) 2000-05-22 2000-09-06 Projecteur, notamment pour projecter des images à dimensions variables et de couleurs quelconques

Country Status (2)

Country Link
EP (1) EP1158239A1 (fr)
IT (1) IT1317661B1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003093725A2 (fr) * 2002-05-06 2003-11-13 Bruno Baiardi Projecteur de faisceau lumineux a ensemble filtres tournant autour de son axe
DE102005025433A1 (de) * 2005-02-16 2006-08-24 Prodisc Technology Inc., Wu-Ku Lichtaufteilvorrichtung
WO2007098764A1 (fr) * 2006-03-01 2007-09-07 Martin Professional A/S Luminaire muni d'un mécanisme pour faire pivoter un composant optique supplémentaire dans le faisceau lumineux
WO2008086806A1 (fr) * 2007-01-19 2008-07-24 Martin Professional A/S Entraînement pour moyens de formation de lumière
ITMI20091563A1 (it) * 2009-09-11 2011-03-12 Clay Paky Spa Proiettore per palcoscenico e metodo per operare un proiettore per palcoscenico
US8113691B2 (en) 2008-03-11 2012-02-14 Robe Lighting S.R.O. Color change mechanism
ITMI20101650A1 (it) * 2010-09-10 2012-03-11 Clay Paky Spa Proiettore da palcoscenico
ITMI20121769A1 (it) * 2012-10-18 2014-04-19 Clay Paky Spa Proiettore da palcoscenico
EP3457023A1 (fr) * 2017-09-13 2019-03-20 Harman Professional Denmark ApS Paire de filtres de couleur avec des caractéristiques de filtre en forme de peigne ayant des dents non parallèles

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB629266A (en) * 1946-08-10 1949-09-15 James Eldred Skewes Improvements in colour filters and projection apparatus for using such filters
EP0352754A2 (fr) * 1988-07-26 1990-01-31 Morpheus Lights, Inc. Système de lentille à contrôle à moteur
EP0415164A1 (fr) * 1989-08-28 1991-03-06 Vari-Lite, Inc. Système de mélange de couleurs additives avec des sources de lumière saturantes et de couleur variable
US5053934A (en) * 1990-02-09 1991-10-01 Krebs Juergen Optical arrangement for high-powered diaprojectors
DE19523351A1 (de) * 1995-06-27 1997-01-02 Feddersen Clausen Oliver Farbwechseleinheit für Beleuchtung
WO1997005423A1 (fr) * 1995-07-26 1997-02-13 Wynne Willson Gottelier Limited Appareil de modification d'un faisceau lumineux
US5622426A (en) * 1994-11-29 1997-04-22 Romano; Richard J. Wash light and method
GB2310035A (en) * 1996-02-06 1997-08-13 Stephen Ernest Watts Special effect lighting
EP0828111A1 (fr) * 1996-08-23 1998-03-11 Altmann, Josef, Dipl.-Ing., Ingenieurbüro für Optik und Lichttechnik Système de formation d'image à focale variable pour un projecteur de plateau
US5795058A (en) * 1992-08-15 1998-08-18 Light & Sound Design, Ltd. Color image protection apparatus
US5934794A (en) * 1997-09-30 1999-08-10 Vari-Lite, Inc. Projection gate apparatus having an axially-translatable mount
WO1999067569A1 (fr) * 1998-06-22 1999-12-29 Electronic Theatre Controls, Inc. Dispositif d'eclairage comportant un objectif a distance focale variable

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB629266A (en) * 1946-08-10 1949-09-15 James Eldred Skewes Improvements in colour filters and projection apparatus for using such filters
EP0352754A2 (fr) * 1988-07-26 1990-01-31 Morpheus Lights, Inc. Système de lentille à contrôle à moteur
EP0415164A1 (fr) * 1989-08-28 1991-03-06 Vari-Lite, Inc. Système de mélange de couleurs additives avec des sources de lumière saturantes et de couleur variable
US5053934A (en) * 1990-02-09 1991-10-01 Krebs Juergen Optical arrangement for high-powered diaprojectors
US5795058A (en) * 1992-08-15 1998-08-18 Light & Sound Design, Ltd. Color image protection apparatus
US5622426A (en) * 1994-11-29 1997-04-22 Romano; Richard J. Wash light and method
DE19523351A1 (de) * 1995-06-27 1997-01-02 Feddersen Clausen Oliver Farbwechseleinheit für Beleuchtung
WO1997005423A1 (fr) * 1995-07-26 1997-02-13 Wynne Willson Gottelier Limited Appareil de modification d'un faisceau lumineux
GB2310035A (en) * 1996-02-06 1997-08-13 Stephen Ernest Watts Special effect lighting
EP0828111A1 (fr) * 1996-08-23 1998-03-11 Altmann, Josef, Dipl.-Ing., Ingenieurbüro für Optik und Lichttechnik Système de formation d'image à focale variable pour un projecteur de plateau
US5934794A (en) * 1997-09-30 1999-08-10 Vari-Lite, Inc. Projection gate apparatus having an axially-translatable mount
WO1999067569A1 (fr) * 1998-06-22 1999-12-29 Electronic Theatre Controls, Inc. Dispositif d'eclairage comportant un objectif a distance focale variable

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003093725A3 (fr) * 2002-05-06 2004-12-02 Bruno Baiardi Projecteur de faisceau lumineux a ensemble filtres tournant autour de son axe
WO2003093725A2 (fr) * 2002-05-06 2003-11-13 Bruno Baiardi Projecteur de faisceau lumineux a ensemble filtres tournant autour de son axe
DE102005025433A1 (de) * 2005-02-16 2006-08-24 Prodisc Technology Inc., Wu-Ku Lichtaufteilvorrichtung
DE102005025433B4 (de) * 2005-02-16 2008-09-11 Prodisc Technology Inc., Wu-Ku Farbradanordnung
WO2007098764A1 (fr) * 2006-03-01 2007-09-07 Martin Professional A/S Luminaire muni d'un mécanisme pour faire pivoter un composant optique supplémentaire dans le faisceau lumineux
US8474986B2 (en) 2007-01-19 2013-07-02 Martin Professional A/S Drive for light forming means
WO2008086806A1 (fr) * 2007-01-19 2008-07-24 Martin Professional A/S Entraînement pour moyens de formation de lumière
US8113691B2 (en) 2008-03-11 2012-02-14 Robe Lighting S.R.O. Color change mechanism
ITMI20091563A1 (it) * 2009-09-11 2011-03-12 Clay Paky Spa Proiettore per palcoscenico e metodo per operare un proiettore per palcoscenico
US8408755B2 (en) 2009-09-11 2013-04-02 Clay Paky S.P.A. Stage lighting fixture and method of operating a stage lighting fixture
ITMI20101650A1 (it) * 2010-09-10 2012-03-11 Clay Paky Spa Proiettore da palcoscenico
ITMI20121769A1 (it) * 2012-10-18 2014-04-19 Clay Paky Spa Proiettore da palcoscenico
EP2722581A1 (fr) * 2012-10-18 2014-04-23 Clay Paky S.p.A. Dispositif d'éclairage de scène
US9121575B2 (en) 2012-10-18 2015-09-01 Clay Paky S.P.A. Stage light fixture
EP3457023A1 (fr) * 2017-09-13 2019-03-20 Harman Professional Denmark ApS Paire de filtres de couleur avec des caractéristiques de filtre en forme de peigne ayant des dents non parallèles
JP2019053982A (ja) * 2017-09-13 2019-04-04 ハーマン プロフェッショナル デンマーク エーピーエス 非平行歯を有する櫛形様特性を有するカラーフィルタ対
US10571088B2 (en) 2017-09-13 2020-02-25 Harman Professional Denmark Aps. Color filter pair with comb-like filter characteristics having non-parallel teeth
JP7162474B2 (ja) 2017-09-13 2022-10-28 ハーマン プロフェッショナル デンマーク エーピーエス 非平行歯を有する櫛形様特性を有するカラーフィルタ対

Also Published As

Publication number Publication date
ITMI20001132A0 (it) 2000-05-22
IT1317661B1 (it) 2003-07-15
ITMI20001132A1 (it) 2001-11-22

Similar Documents

Publication Publication Date Title
EP1167868A2 (fr) Projecteur de lumière, notamment pour projeter des faisceaux de lumière à dimensions et couleurs variables
US6796682B2 (en) Intra-lens color and dimming apparatus
US4745531A (en) Lighting device with all parameters adjustable simultaneously, in particular for use as a stage light
US5188452A (en) Color mixing lighting assembly
US5825548A (en) Cross-fading color filter and system
US6102554A (en) Apparatus for modifying a light beam
US20060245184A1 (en) Iris diffuser for adjusting light beam properties
JP2002511185A (ja) 順次クロスフェーディングするカラーフィルタとシステム
KR20010045326A (ko) 마이크로미러 가동장치를 채용한 반사형 프로젝터
US9243783B2 (en) Method and apparatus for controlling diffusion and color of a light beam
JP3894796B2 (ja) 照明器具
US20060007686A1 (en) Stage lighting methods and apparatus
EP1158239A1 (fr) Projecteur, notamment pour projecter des images à dimensions variables et de couleurs quelconques
CN104062835B (zh) 投影型显示装置
EP2150746B1 (fr) Système optique avec source de lumière en réseau
CA2548398A1 (fr) Schemas optiques destines aux afficheurs montes sur la tete
US20110063847A1 (en) Stage lighting fixture and method of operating a stage lighting fixture
KR920006680A (ko) 가변색상 조명장치
EP2828574B1 (fr) Système d'encadrement de faisceau pour un luminaire automatisé
US8721123B2 (en) Pattern generator for a light fixture
JP2005309337A (ja) 投映型画像表示装置
JP3661798B2 (ja) 照明装置
CA1145181A (fr) Methode pour modifier les diapositives de facon a obtenir une luminosite uniforme en projection oblique
KR100584539B1 (ko) 마이크로미러 가동장치를 채용한 반사형 프로젝터
KR20010105785A (ko) 마이크로미러 가동장치를 채용한 반사형 프로젝터

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

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 20020208