CA1054991A - Systeme d'occultation pour projecteurs de scene - Google Patents

Systeme d'occultation pour projecteurs de scene

Info

Publication number
CA1054991A
CA1054991A CA282,673A CA282673A CA1054991A CA 1054991 A CA1054991 A CA 1054991A CA 282673 A CA282673 A CA 282673A CA 1054991 A CA1054991 A CA 1054991A
Authority
CA
Canada
Prior art keywords
shutter
blades
framing gate
slots
framing
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.)
Expired
Application number
CA282,673A
Other languages
English (en)
Inventor
Joseph H. Labrum
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.)
Electro Controls Inc
Original Assignee
Electro Controls Inc
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 Electro Controls Inc filed Critical Electro Controls Inc
Application granted granted Critical
Publication of CA1054991A publication Critical patent/CA1054991A/fr
Expired legal-status Critical Current

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
    • F21V11/16—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
    • 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)
CA282,673A 1977-03-14 1977-07-13 Systeme d'occultation pour projecteurs de scene Expired CA1054991A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US77744877A 1977-03-14 1977-03-14

Publications (1)

Publication Number Publication Date
CA1054991A true CA1054991A (fr) 1979-05-22

Family

ID=25110288

Family Applications (1)

Application Number Title Priority Date Filing Date
CA282,673A Expired CA1054991A (fr) 1977-03-14 1977-07-13 Systeme d'occultation pour projecteurs de scene

Country Status (2)

Country Link
CA (1) CA1054991A (fr)
GB (1) GB1561165A (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2195012B (en) * 1986-08-05 1990-08-22 Cct Theatre Lighting Limited Spotlight and accessories therefor
DE4300056C2 (de) * 1993-01-04 1998-07-16 Weigert Dedo Film Gmbh Torblende für eine Leuchte
ATE194217T1 (de) * 1996-12-23 2000-07-15 Klaus Welm Blendenelement
EP1293722B1 (fr) * 2000-06-20 2005-10-12 Marumo Electric Co., Ltd. Appareil d' eclairage
ITMI20011873A1 (it) * 2001-09-07 2003-03-07 Clay Paky Spa Dispositivo sagomatore di fasci luminosi

Also Published As

Publication number Publication date
GB1561165A (en) 1980-02-13

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