GB2019999A - Spotlight lantern projection system - Google Patents

Spotlight lantern projection system

Info

Publication number
GB2019999A
GB2019999A GB7902057A GB7902057A GB2019999A GB 2019999 A GB2019999 A GB 2019999A GB 7902057 A GB7902057 A GB 7902057A GB 7902057 A GB7902057 A GB 7902057A GB 2019999 A GB2019999 A GB 2019999A
Authority
GB
United Kingdom
Prior art keywords
spotlight
projection system
lantern projection
lantern
spotlight lantern
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.)
Granted
Application number
GB7902057A
Other versions
GB2019999B (en
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.)
Rank Organization Ltd
Original Assignee
Rank Organization 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.)
Filing date
Publication date
Application filed by Rank Organization Ltd filed Critical Rank Organization Ltd
Publication of GB2019999A publication Critical patent/GB2019999A/en
Application granted granted Critical
Publication of GB2019999B publication Critical patent/GB2019999B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K7/00—Lamps for purposes other than general lighting
    • H01K7/02—Lamps for purposes other than general lighting for producing a narrow beam of light; for approximating a point-like source of light, e.g. for searchlight, for cinematographic projector
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/0025—Combination of two or more reflectors for a single light source
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F21V7/09—Optical design with a combination of different curvatures
    • 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
    • F21V11/16—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)
GB7902057A 1978-04-26 1979-01-19 Spotlight lantern projection system Expired GB2019999B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1649578 1978-04-26

Publications (2)

Publication Number Publication Date
GB2019999A true GB2019999A (en) 1979-11-07
GB2019999B GB2019999B (en) 1982-03-24

Family

ID=10078377

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7902057A Expired GB2019999B (en) 1978-04-26 1979-01-19 Spotlight lantern projection system

Country Status (3)

Country Link
EP (1) EP0005080B1 (en)
DE (1) DE2962174D1 (en)
GB (1) GB2019999B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2199131A (en) * 1986-12-12 1988-06-29 William Dallas Little Spot projector
GB2378499A (en) * 2001-08-10 2003-02-12 Central Research Lab Ltd A lamp for a projection system

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0180665A1 (en) * 1984-11-06 1986-05-14 Inlines Productions S.A. Lighting device with framing gate
JP2769259B2 (en) * 1992-01-27 1998-06-25 株式会社小糸製作所 Automotive headlamp
DE19910192C2 (en) 1999-03-09 2002-04-04 Schott Auer Gmbh Reflector with a concave, rotationally symmetrical body and a faceted reflection surface
US6206549B1 (en) 1999-05-27 2001-03-27 World Hint Limited Light reflector
DE102005029669A1 (en) 2005-06-22 2007-01-11 Arnold & Richter Cine Technik Gmbh & Co. Betriebs Kg headlights
DE102005045685B4 (en) * 2005-09-24 2010-09-23 Automotive Lighting Reutlingen Gmbh radiation device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1408875A (en) * 1922-03-07 Beflectoe
GB255589A (en) * 1925-05-26 1926-07-29 Thomas Davis Improvements in or relating to reflectors
FR751001A (en) * 1932-05-21 1933-08-25 Optical device for lighting devices
US2597681A (en) * 1950-07-01 1952-05-20 Gen Electric Electric incandescent lamp
US3930149A (en) * 1974-05-28 1975-12-30 Sterndent Corp Variable intensity dental light
US4021659A (en) * 1975-10-30 1977-05-03 General Electric Company Projector lamp reflector

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2199131A (en) * 1986-12-12 1988-06-29 William Dallas Little Spot projector
GB2199131B (en) * 1986-12-12 1991-02-27 William Dallas Little Spot projector
GB2378499A (en) * 2001-08-10 2003-02-12 Central Research Lab Ltd A lamp for a projection system

Also Published As

Publication number Publication date
EP0005080B1 (en) 1982-02-24
DE2962174D1 (en) 1982-03-25
GB2019999B (en) 1982-03-24
EP0005080A1 (en) 1979-10-31

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930119