BE876437A - Dispositif pour modifier en continu le flux lumineux d'un projecteur pour scenes de grandes dimensions. - Google Patents

Dispositif pour modifier en continu le flux lumineux d'un projecteur pour scenes de grandes dimensions.

Info

Publication number
BE876437A
BE876437A BE6/46841A BE6046841A BE876437A BE 876437 A BE876437 A BE 876437A BE 6/46841 A BE6/46841 A BE 6/46841A BE 6046841 A BE6046841 A BE 6046841A BE 876437 A BE876437 A BE 876437A
Authority
BE
Belgium
Prior art keywords
scensions
projector
continuously modifying
luminous flow
luminous
Prior art date
Application number
BE6/46841A
Other languages
English (en)
French (fr)
Inventor
J Altmann
Original Assignee
Niethammer Hellmut
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 Niethammer Hellmut filed Critical Niethammer Hellmut
Publication of BE876437A publication Critical patent/BE876437A/xx

Links

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
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/08—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using diaphragms containing one or more apertures
    • F21V11/10—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using diaphragms containing one or more apertures of iris type
    • 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
    • F21V11/08—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using diaphragms containing one or more apertures
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
BE6/46841A 1978-07-18 1979-05-21 Dispositif pour modifier en continu le flux lumineux d'un projecteur pour scenes de grandes dimensions. BE876437A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782831422 DE2831422A1 (de) 1978-07-18 1978-07-18 Vorrichtung zur allmaehlichen verdunkelung bei einem grossbuehnen-projektionsapparat

Publications (1)

Publication Number Publication Date
BE876437A true BE876437A (fr) 1979-09-17

Family

ID=6044630

Family Applications (1)

Application Number Title Priority Date Filing Date
BE6/46841A BE876437A (fr) 1978-07-18 1979-05-21 Dispositif pour modifier en continu le flux lumineux d'un projecteur pour scenes de grandes dimensions.

Country Status (4)

Country Link
AT (1) AT364247B (de)
BE (1) BE876437A (de)
DE (1) DE2831422A1 (de)
FR (1) FR2431658A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2582780B1 (fr) * 1985-05-31 1988-09-09 Cameleon Dispositif d'eclairage, notamment projecteur scenique simultanement reglable selon tous ses parametres

Also Published As

Publication number Publication date
DE2831422A1 (de) 1980-01-31
FR2431658B3 (de) 1982-04-02
AT364247B (de) 1981-10-12
FR2431658A1 (fr) 1980-02-15
ATA344779A (de) 1981-02-15

Similar Documents

Publication Publication Date Title
IT7920931A0 (it) Dispositivo per modulare l'ampiezza di un fascio di luce.
BE859845A (fr) Dispositif reflecteur pour la concentration d'un flux d'ondes
JPS52110033A (en) Single lens reflex camera
FR2331115A1 (fr) Dispositif automatique pour inverser le defilement d'une bande, notamment d'une bande magnetique
ES510812A0 (es) "un dispositivo vibrador perfeccionado".
IT8121811A0 (it) Parete fotografica per la proiezione a luce passante.
FR2315708A1 (fr) Ecran composite de projection, notamment pour installation d'entrainement au tir
JPS5378838A (en) Wide-angle lens of symmetrical type
FR2337843A1 (fr) Dispositif d'adaptation du debit d'un abreuvoir automatique
RO75404A (ro) Circuit pentru controlul saturatiei unui tranzistor
BE876437A (fr) Dispositif pour modifier en continu le flux lumineux d'un projecteur pour scenes de grandes dimensions.
BE857003A (fr) Dispositif pour realiser le tirage d'un corps monocristallin a partir d'une pellicule en fusion
JPS52132724A (en) Projector
JPS5385420A (en) Silver halide photographic material
BE815060A (fr) Dispositif pour deplacer le point d'attaque d'un filin
FR2305835A1 (fr) Dispositif pour la creation d'un champ magnetique continu
BE840489A (fr) Circuit pour l'obtention d'un effet choral
BE833654A (fr) Dispositif de chasse d'eau a debit variable
JPS5368929A (en) Magnetic bubble driving device
FR2282591A1 (fr) Dispositif de commande de l'ecoulement d'un liquide evitant le siphonnement
BE865314A (fr) Dispositif d'eclairage pour bicyclettes
BE849797A (fr) Dispositif d'etancheite a obturateur notamment pour compresseur
JPS51127728A (en) Sound movie camera
JPS52143043A (en) Zoom lens system for extreme proximity photographing
JPS537244A (en) Image forming device

Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: FIRMA EMIL NIETHAMER ELEKTROTECHNISCHE FABRIK G.M

Effective date: 19870531