GB2266159B - Projection apparatus - Google Patents

Projection apparatus

Info

Publication number
GB2266159B
GB2266159B GB9207477A GB9207477A GB2266159B GB 2266159 B GB2266159 B GB 2266159B GB 9207477 A GB9207477 A GB 9207477A GB 9207477 A GB9207477 A GB 9207477A GB 2266159 B GB2266159 B GB 2266159B
Authority
GB
United Kingdom
Prior art keywords
projection apparatus
projection
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 - Fee Related
Application number
GB9207477A
Other versions
GB9207477D0 (en
GB2266159A (en
Inventor
Clive Alan Bailey
Keith Donovan
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.)
PRESENTATION PROJECTS Ltd
Original Assignee
PRESENTATION PROJECTS 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 PRESENTATION PROJECTS Ltd filed Critical PRESENTATION PROJECTS Ltd
Priority to GB9207477A priority Critical patent/GB2266159B/en
Publication of GB9207477D0 publication Critical patent/GB9207477D0/en
Publication of GB2266159A publication Critical patent/GB2266159A/en
Application granted granted Critical
Publication of GB2266159B publication Critical patent/GB2266159B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141—Constructional details thereof
    • 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
    • G03B21/10—Projectors with built-in or built-on screen

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)
GB9207477A 1992-04-06 1992-04-06 Projection apparatus Expired - Fee Related GB2266159B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9207477A GB2266159B (en) 1992-04-06 1992-04-06 Projection apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9207477A GB2266159B (en) 1992-04-06 1992-04-06 Projection apparatus

Publications (3)

Publication Number Publication Date
GB9207477D0 GB9207477D0 (en) 1992-05-20
GB2266159A GB2266159A (en) 1993-10-20
GB2266159B true GB2266159B (en) 1995-09-13

Family

ID=10713519

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9207477A Expired - Fee Related GB2266159B (en) 1992-04-06 1992-04-06 Projection apparatus

Country Status (1)

Country Link
GB (1) GB2266159B (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB151599A (en) * 1919-09-22 1921-12-02 Petra Ag Fuer Elektro Mechanik Improved cabinets for the projection of films
US3535033A (en) * 1968-01-11 1970-10-20 Edwin Busch Multiple unit projection system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB151599A (en) * 1919-09-22 1921-12-02 Petra Ag Fuer Elektro Mechanik Improved cabinets for the projection of films
US3535033A (en) * 1968-01-11 1970-10-20 Edwin Busch Multiple unit projection system

Also Published As

Publication number Publication date
GB9207477D0 (en) 1992-05-20
GB2266159A (en) 1993-10-20

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Legal Events

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

Effective date: 20010406