FR2053071A1 - - Google Patents

Info

Publication number
FR2053071A1
FR2053071A1 FR7027041A FR7027041A FR2053071A1 FR 2053071 A1 FR2053071 A1 FR 2053071A1 FR 7027041 A FR7027041 A FR 7027041A FR 7027041 A FR7027041 A FR 7027041A FR 2053071 A1 FR2053071 A1 FR 2053071A1
Authority
FR
France
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
FR7027041A
Other languages
French (fr)
Other versions
FR2053071B1 (xx
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.)
GAF Corp
Original Assignee
GAF Corp
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 GAF Corp filed Critical GAF Corp
Publication of FR2053071A1 publication Critical patent/FR2053071A1/fr
Application granted granted Critical
Publication of FR2053071B1 publication Critical patent/FR2053071B1/fr
Expired legal-status Critical Current

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
    • G03B21/53—Means for automatic focusing, e.g. to compensate thermal effects

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Focusing (AREA)
  • Automatic Focus Adjustment (AREA)
  • Projection Apparatus (AREA)
  • Transforming Electric Information Into Light Information (AREA)
FR7027041A 1969-07-22 1970-07-22 Expired FR2053071B1 (xx)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US84331169A 1969-07-22 1969-07-22
US3795070A 1970-05-18 1970-05-18

Publications (2)

Publication Number Publication Date
FR2053071A1 true FR2053071A1 (xx) 1971-04-16
FR2053071B1 FR2053071B1 (xx) 1977-11-04

Family

ID=26714651

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7027041A Expired FR2053071B1 (xx) 1969-07-22 1970-07-22

Country Status (11)

Country Link
JP (1) JPS5012304B1 (xx)
AT (1) AT312324B (xx)
BE (1) BE753741A (xx)
CA (1) CA948908A (xx)
CH (1) CH516172A (xx)
DE (2) DE2036119C3 (xx)
FR (1) FR2053071B1 (xx)
GB (1) GB1285870A (xx)
IL (1) IL34951A (xx)
NL (1) NL7010832A (xx)
SE (1) SE360747B (xx)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2518767A1 (fr) * 1981-12-17 1983-06-24 Centre Nat Etd Spatiales Procede de reglage automatique de la nettete d'images projetees sur un ecran et dispositifs pour la mise en oeuvre dudit procede

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3325042A1 (de) * 1983-07-12 1984-02-23 Kodak Ag, 7000 Stuttgart Selbstfokussiervorrichtung
JPS6351681A (ja) * 1986-08-20 1988-03-04 Agency Of Ind Science & Technol 半導体装置
DE4116803A1 (de) * 1991-05-23 1992-12-10 Agfa Gevaert Ag Vorrichtung zur gleichmaessigen ausleuchtung einer projektionsflaeche
US6835921B2 (en) 2000-11-15 2004-12-28 Agfa Corporation Focusing system for use in imaging systems
EP1408360A3 (en) * 2002-10-11 2004-07-28 Agfa Corporation Focusing system and method for use in imaging systems

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2518767A1 (fr) * 1981-12-17 1983-06-24 Centre Nat Etd Spatiales Procede de reglage automatique de la nettete d'images projetees sur un ecran et dispositifs pour la mise en oeuvre dudit procede
EP0083268A1 (fr) * 1981-12-17 1983-07-06 Centre National D'etudes Spatiales Procédé de réglage automatique de la netteté d'images projetées sur un écran et dispositifs pour la mise en oeuvre dudit procédé

Also Published As

Publication number Publication date
BE753741A (fr) 1970-12-31
NL7010832A (xx) 1971-01-26
IL34951A (en) 1973-02-28
AT312324B (de) 1973-12-27
DE2036119A1 (de) 1971-02-04
CA948908A (en) 1974-06-11
JPS5012304B1 (xx) 1975-05-10
DE2036119C3 (de) 1974-03-28
GB1285870A (en) 1972-08-16
SE360747B (xx) 1973-10-01
CH516172A (de) 1971-11-30
DE7027406U (de) 1970-12-03
DE2036119B2 (de) 1973-08-23
FR2053071B1 (xx) 1977-11-04
IL34951A0 (en) 1970-09-17

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Legal Events

Date Code Title Description
ST Notification of lapse