AT364247B - DEVICE FOR GRADUALLY DARKENING IN A LARGE STAGE PROJECTION APPARATUS - Google Patents

DEVICE FOR GRADUALLY DARKENING IN A LARGE STAGE PROJECTION APPARATUS

Info

Publication number
AT364247B
AT364247B AT344779A AT344779A AT364247B AT 364247 B AT364247 B AT 364247B AT 344779 A AT344779 A AT 344779A AT 344779 A AT344779 A AT 344779A AT 364247 B AT364247 B AT 364247B
Authority
AT
Austria
Prior art keywords
projection apparatus
large stage
stage projection
gradually darkening
darkening
Prior art date
Application number
AT344779A
Other languages
German (de)
Other versions
ATA344779A (en
Original Assignee
Niethammer Fa 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 Fa Hellmut filed Critical Niethammer Fa Hellmut
Publication of ATA344779A publication Critical patent/ATA344779A/en
Application granted granted Critical
Publication of AT364247B publication Critical patent/AT364247B/en

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)
AT344779A 1978-07-18 1979-05-08 DEVICE FOR GRADUALLY DARKENING IN A LARGE STAGE PROJECTION APPARATUS AT364247B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782831422 DE2831422A1 (en) 1978-07-18 1978-07-18 DEVICE FOR GRADUALLY DARKENING IN A LARGE STAGE PROJECTION APPARATUS

Publications (2)

Publication Number Publication Date
ATA344779A ATA344779A (en) 1981-02-15
AT364247B true AT364247B (en) 1981-10-12

Family

ID=6044630

Family Applications (1)

Application Number Title Priority Date Filing Date
AT344779A AT364247B (en) 1978-07-18 1979-05-08 DEVICE FOR GRADUALLY DARKENING IN A LARGE STAGE PROJECTION APPARATUS

Country Status (4)

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

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2582780B1 (en) * 1985-05-31 1988-09-09 Cameleon LIGHTING DEVICE, PARTICULARLY ADJUSTABLE SCENIC PROJECTOR ACCORDING TO ALL ITS PARAMETERS

Also Published As

Publication number Publication date
BE876437A (en) 1979-09-17
DE2831422A1 (en) 1980-01-31
ATA344779A (en) 1981-02-15
FR2431658B3 (en) 1982-04-02
FR2431658A1 (en) 1980-02-15

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Legal Events

Date Code Title Description
EIH Change in the person of patent owner
ELJ Ceased due to non-payment of the annual fee
ELJ Ceased due to non-payment of the annual fee