FR2478327B1 - Dispositif de projection - Google Patents

Dispositif de projection

Info

Publication number
FR2478327B1
FR2478327B1 FR8105080A FR8105080A FR2478327B1 FR 2478327 B1 FR2478327 B1 FR 2478327B1 FR 8105080 A FR8105080 A FR 8105080A FR 8105080 A FR8105080 A FR 8105080A FR 2478327 B1 FR2478327 B1 FR 2478327B1
Authority
FR
France
Prior art keywords
projection device
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
Application number
FR8105080A
Other languages
English (en)
Other versions
FR2478327A1 (fr
Inventor
Yoshiya Matsui
Setsuo Minami
Noritaka Mochizuki
Isao Harumoto
Atsuo Tsunoda
Masami Ohkubo
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.)
Canon Inc
Original Assignee
Canon 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 Canon Inc filed Critical Canon Inc
Publication of FR2478327A1 publication Critical patent/FR2478327A1/fr
Application granted granted Critical
Publication of FR2478327B1 publication Critical patent/FR2478327B1/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/24—Optical objectives specially designed for the purposes specified below for reproducing or copying at short object distances
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/22—Telecentric objectives or lens systems
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Optical Systems Of Projection Type Copiers (AREA)
FR8105080A 1980-03-14 1981-03-13 Dispositif de projection Expired FR2478327B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3252580A JPS56128910A (en) 1980-03-14 1980-03-14 Projector

Publications (2)

Publication Number Publication Date
FR2478327A1 FR2478327A1 (fr) 1981-09-18
FR2478327B1 true FR2478327B1 (fr) 1986-03-14

Family

ID=12361368

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8105080A Expired FR2478327B1 (fr) 1980-03-14 1981-03-13 Dispositif de projection

Country Status (4)

Country Link
US (1) US4368975A (fr)
JP (1) JPS56128910A (fr)
DE (1) DE3109460A1 (fr)
FR (1) FR2478327B1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57161825A (en) * 1981-03-31 1982-10-05 Canon Inc Compound eye projecting device
JPS58104561A (ja) * 1981-12-17 1983-06-22 Canon Inc 両面記録装置
US4632522A (en) * 1983-10-31 1986-12-30 Mita Industrial Co., Ltd. Optical system of variable magnification and a method for varying magnification of the same
DE3517086A1 (de) * 1984-05-14 1985-11-21 Sharp K.K., Osaka Kopiergeraet
FR2716269B1 (fr) * 1994-02-15 1996-04-26 Matthias Chouat Visière à jumelles intégrées.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1203115B (de) * 1964-11-20 1965-10-14 Agfa Gevaert Ag Belichtungsanordnung fuer Kopiergeraete
CH460381A (de) * 1966-07-29 1968-07-31 Rank Xerox Ltd Optisches Abbildungssystem
DE2654319A1 (de) * 1976-11-30 1978-06-01 Agfa Gevaert Ag Belichtungseinrichtung fuer kopiergeraete
DE2757386C3 (de) * 1977-12-22 1981-11-26 Agfa-Gevaert Ag, 5090 Leverkusen Belichtungsanordnung für Kopiergeräte
JPS54123948A (en) * 1978-03-18 1979-09-26 Canon Inc Projector

Also Published As

Publication number Publication date
FR2478327A1 (fr) 1981-09-18
DE3109460A1 (de) 1981-12-24
US4368975A (en) 1983-01-18
JPS6348323B2 (fr) 1988-09-28
JPS56128910A (en) 1981-10-08

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