ES400098A1 - Mecanismo de enfoque de lentes. - Google Patents

Mecanismo de enfoque de lentes.

Info

Publication number
ES400098A1
ES400098A1 ES400098A ES400098A ES400098A1 ES 400098 A1 ES400098 A1 ES 400098A1 ES 400098 A ES400098 A ES 400098A ES 400098 A ES400098 A ES 400098A ES 400098 A1 ES400098 A1 ES 400098A1
Authority
ES
Spain
Prior art keywords
lens
support
focusing mechanism
optical axis
respect
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
ES400098A
Other languages
English (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.)
NCR Voyix Corp
National Cash Register Co
Original Assignee
NCR Corp
National Cash Register Co
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 NCR Corp, National Cash Register Co filed Critical NCR Corp
Publication of ES400098A1 publication Critical patent/ES400098A1/es
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
    • G03B21/10—Projectors with built-in or built-on screen
    • G03B21/11—Projectors with built-in or built-on screen for microfilm reading
    • 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)
  • Projection Apparatus (AREA)
  • Variable Magnification In Projection-Type Copying Machines (AREA)
  • Lens Barrels (AREA)
  • Structure And Mechanism Of Cameras (AREA)
  • Projection-Type Copiers In General (AREA)
ES400098A 1971-02-25 1972-02-23 Mecanismo de enfoque de lentes. Expired ES400098A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11881871A 1971-02-25 1971-02-25

Publications (1)

Publication Number Publication Date
ES400098A1 true ES400098A1 (es) 1974-12-16

Family

ID=22380924

Family Applications (1)

Application Number Title Priority Date Filing Date
ES400098A Expired ES400098A1 (es) 1971-02-25 1972-02-23 Mecanismo de enfoque de lentes.

Country Status (12)

Country Link
US (1) US3717400A (es)
JP (1) JPS523579B1 (es)
BE (1) BE779755A (es)
CA (1) CA971785A (es)
CH (1) CH543099A (es)
DE (1) DE2207606B2 (es)
DK (1) DK144253C (es)
ES (1) ES400098A1 (es)
FR (1) FR2126374B1 (es)
GB (1) GB1325985A (es)
IT (1) IT947867B (es)
ZA (1) ZA72613B (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3439254A1 (de) * 1984-10-26 1986-04-30 MAP Mikrofilm Apparatebau Dr. Poehler GmbH & Co KG, 6352 Ober-Mörlen Objektivhalterung
US6324021B1 (en) 1999-09-09 2001-11-27 Lorvel J. Shields Focusing system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2908209A (en) * 1957-09-23 1959-10-13 Eastman Kodak Co Lens focusing mechanism for cameras
US3604795A (en) * 1968-05-20 1971-09-14 Eastman Kodak Co Image projection system

Also Published As

Publication number Publication date
DK144253C (da) 1982-06-21
CA971785A (en) 1975-07-29
BE779755A (fr) 1972-06-16
IT947867B (it) 1973-05-30
ZA72613B (en) 1972-10-25
GB1325985A (en) 1973-08-08
DE2207606B2 (de) 1980-04-10
DK144253B (da) 1982-01-25
US3717400A (en) 1973-02-20
CH543099A (de) 1973-10-15
DE2207606A1 (de) 1972-09-07
FR2126374A1 (es) 1972-10-06
JPS523579B1 (es) 1977-01-28
FR2126374B1 (es) 1976-01-16

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