BE412855A - - Google Patents

Info

Publication number
BE412855A
BE412855A BE412855DA BE412855A BE 412855 A BE412855 A BE 412855A BE 412855D A BE412855D A BE 412855DA BE 412855 A BE412855 A BE 412855A
Authority
BE
Belgium
Prior art keywords
tubes
frequency
image
illumination
curve
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE412855A publication Critical patent/BE412855A/fr

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00Projectors or projection-type viewers; Accessories therefor
    • G03B21/14Details
    • G03B21/16Cooling; Preventing overheating
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00Projectors or projection-type viewers; Accessories therefor
    • G03B21/14Details
    • G03B21/20Lamp housings
    • G03B21/2006Lamp housings characterised by the light source
    • G03B21/2026Gas discharge type light sources, e.g. arcs
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00Projectors or projection-type viewers; Accessories therefor
    • G03B21/14Details
    • G03B21/20Lamp housings
    • G03B21/2053Intensity control of illuminating light

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Projection Apparatus (AREA)
BE412855D BE412855A (enrdf_load_html_response)

Publications (1)

Publication Number Publication Date
BE412855A true BE412855A (enrdf_load_html_response)

Family

ID=76515

Family Applications (1)

Application Number Title Priority Date Filing Date
BE412855D BE412855A (enrdf_load_html_response)

Country Status (1)

Country Link
BE (1) BE412855A (enrdf_load_html_response)

Similar Documents

Publication Publication Date Title
EP0406116B1 (fr) Procédé et dispositif de gradation de lumière pour lampe fluorescente d'éclairage arrière d'écran à cristaux liquides
EP0288924B1 (fr) Dispositif d'alimentation d'une lampe à décharge
US7855512B2 (en) Device for lighting a high-pressure discharge lamp by supplying alternating current
US7944150B2 (en) Discharge lamp lighting apparatus and projector
JP5313932B2 (ja) 高圧放電ランプ点灯装置、それを用いた高圧放電ランプ装置、その高圧放電ランプ装置を用いたプロジェクタ、および高圧放電ランプの点灯方法
FR2505601A1 (enrdf_load_html_response)
CN101526726B (zh) 投影机用的光源装置的驱动方法
EP0152026B1 (fr) Dispositif d'alimentation pour commander l'intensité lumineuse d'au moins une lampe à décharge et utilisation dudit dispositif
BE412855A (enrdf_load_html_response)
FR2617363A1 (fr) Dispositif d'alimentation d'une lampe a decharge
FR2654255A1 (fr) Dispositif de lampe a decharge a haute intensite.
FR2644662A1 (fr) Dispositif d'allumage de lampe a decharge a courant continu
JP5333421B2 (ja) 高圧放電ランプ点灯装置
JP2009508166A (ja) 無電極の光源を備えた動画投影機
FR2551613A1 (fr) Dispositif d'eclairage forme d'un redresseur, une lampe et un element limiteur de courant
BE419965A (enrdf_load_html_response)
FR2830116A1 (fr) Procede d'affichage d'images video sur un dispositif d'affichage pour corriger le papillotement large zone et les pics de consommation
BE332056A (enrdf_load_html_response)
BE403978A (enrdf_load_html_response)
Romand Les étincelles sous vide utilisées comme source de lumière pour l'ultraviolet lointain
BE426310A (enrdf_load_html_response)
BE381825A (enrdf_load_html_response)
BE420260A (enrdf_load_html_response)
FR2571915A1 (fr) Systeme de prise de vues de television fonctionnant a des frequences differentes du secteur alternatif et de la trame de television et dispositif de prise de vues de television convenant a ce systeme
BE396697A (enrdf_load_html_response)