FR2641928B1 - IMAGE PROJECTION DEVICE - Google Patents

IMAGE PROJECTION DEVICE

Info

Publication number
FR2641928B1
FR2641928B1 FR8900480A FR8900480A FR2641928B1 FR 2641928 B1 FR2641928 B1 FR 2641928B1 FR 8900480 A FR8900480 A FR 8900480A FR 8900480 A FR8900480 A FR 8900480A FR 2641928 B1 FR2641928 B1 FR 2641928B1
Authority
FR
France
Prior art keywords
projection device
image projection
image
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
FR8900480A
Other languages
French (fr)
Other versions
FR2641928A1 (en
Inventor
Jean Claude Lehureau
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR8900480A priority Critical patent/FR2641928B1/en
Publication of FR2641928A1 publication Critical patent/FR2641928A1/en
Application granted granted Critical
Publication of FR2641928B1 publication Critical patent/FR2641928B1/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
    • H04N9/315—Modulator illumination systems
    • 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
    • H04N9/315—Modulator illumination systems
    • H04N9/3161—Modulator illumination systems using laser light sources

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
FR8900480A 1989-01-17 1989-01-17 IMAGE PROJECTION DEVICE Expired - Fee Related FR2641928B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8900480A FR2641928B1 (en) 1989-01-17 1989-01-17 IMAGE PROJECTION DEVICE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8900480A FR2641928B1 (en) 1989-01-17 1989-01-17 IMAGE PROJECTION DEVICE

Publications (2)

Publication Number Publication Date
FR2641928A1 FR2641928A1 (en) 1990-07-20
FR2641928B1 true FR2641928B1 (en) 1996-09-13

Family

ID=9377776

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8900480A Expired - Fee Related FR2641928B1 (en) 1989-01-17 1989-01-17 IMAGE PROJECTION DEVICE

Country Status (1)

Country Link
FR (1) FR2641928B1 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2326970A (en) * 1939-05-25 1943-08-17 Rantsch Kurt Illuminating system, particularly for projection purposes
US2803163A (en) * 1952-05-20 1957-08-20 Zeiss Ikon Ag Illuminating system for picture projectors
US3330908A (en) * 1963-10-16 1967-07-11 Gen Electric Deformable medium projection apparatus utilizing novel optical system comprising lens arrays employed in conjunction with light masks
US3345462A (en) * 1963-10-16 1967-10-03 Gen Electric Light valve projection apparatus
US4082438A (en) * 1975-05-30 1978-04-04 Rca Corporation Zero-order diffractive subtractive filter projector
JPS6027964B2 (en) * 1979-08-28 1985-07-02 工業技術院長 Directional high-cut spatial frequency filter
JPS60218635A (en) * 1984-04-13 1985-11-01 Canon Inc Lighting device

Also Published As

Publication number Publication date
FR2641928A1 (en) 1990-07-20

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Legal Events

Date Code Title Description
ST Notification of lapse