BE757693A - Perfectionnements aux dispositifs audio-sensibles - Google Patents

Perfectionnements aux dispositifs audio-sensibles

Info

Publication number
BE757693A
BE757693A BE757693DA BE757693A BE 757693 A BE757693 A BE 757693A BE 757693D A BE757693D A BE 757693DA BE 757693 A BE757693 A BE 757693A
Authority
BE
Belgium
Prior art keywords
sensitive devices
advanced audio
audio
advanced
sensitive
Prior art date
Application number
Other languages
English (en)
Inventor
Ltd. Groupcroft
Original Assignee
Lighting Technology Ltd
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.)
Publication date
Publication of BE757693A publication Critical patent/BE757693A/fr

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS 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
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • 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

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Projection Apparatus (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
BE757693D 1969-10-20 Perfectionnements aux dispositifs audio-sensibles BE757693A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5141169 1969-10-20

Publications (1)

Publication Number Publication Date
BE757693A true BE757693A (fr) 1971-04-01

Family

ID=10459912

Family Applications (1)

Application Number Title Priority Date Filing Date
BE757693D BE757693A (fr) 1969-10-20 Perfectionnements aux dispositifs audio-sensibles

Country Status (10)

Country Link
US (1) US3749483A (fr)
AU (1) AU2156670A (fr)
BE (1) BE757693A (fr)
CA (1) CA954693A (fr)
CH (1) CH517950A (fr)
DE (1) DE2051158A1 (fr)
FR (1) FR2065742B1 (fr)
GB (1) GB1333913A (fr)
NL (1) NL7015339A (fr)
ZA (1) ZA707147B (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2465155A1 (fr) * 1979-09-11 1981-03-20 Aubry Laurent Mecanisme de mise en frequence de decoupes rotatives associees a un projecteur de lumiere
GB2203958A (en) * 1987-04-30 1988-11-02 Grosvenor Innovations Ltd Audio-visual equipment
GB2305497A (en) * 1995-09-22 1997-04-09 John Michael Hill Colour display device
GB2323808B (en) * 1997-04-04 2001-02-14 Valpar Ind Ltd Beverage and coolant manifolds
DE19834626A1 (de) * 1998-04-01 1999-10-07 Brickl Benjamin Showeffekte mit Hilfe von Diaprojektoren

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2216260A (en) * 1937-11-18 1940-10-01 Wetzel Maurice Decorative lighting apparatus
US2292172A (en) * 1940-05-24 1942-08-04 Cecil A Stokes Process and apparatus for producing musical rhythm in color
US2677297A (en) * 1952-02-19 1954-05-04 Maurice S Wetzel Rhythmic decorative lighting apparatus
US3234847A (en) * 1962-01-18 1966-02-15 Scope Inc Amusement display device
US3163078A (en) * 1963-10-03 1964-12-29 Stanley B Elliott Apparatus for visual interpretations of electrical currents
US3215022A (en) * 1964-05-15 1965-11-02 Elden G Chapman Apparatus for projected light effects

Also Published As

Publication number Publication date
US3749483A (en) 1973-07-31
CH517950A (de) 1972-01-15
NL7015339A (fr) 1971-04-22
FR2065742B1 (fr) 1973-01-12
ZA707147B (en) 1972-09-27
AU2156670A (en) 1972-05-04
FR2065742A1 (fr) 1971-08-06
DE2051158A1 (de) 1971-05-13
GB1333913A (en) 1973-10-17
CA954693A (en) 1974-09-17

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