FR1536100A - Device for automatic precise adjustment of image sharpness in slide projectors - Google Patents

Device for automatic precise adjustment of image sharpness in slide projectors

Info

Publication number
FR1536100A
FR1536100A FR120337A FR120337A FR1536100A FR 1536100 A FR1536100 A FR 1536100A FR 120337 A FR120337 A FR 120337A FR 120337 A FR120337 A FR 120337A FR 1536100 A FR1536100 A FR 1536100A
Authority
FR
France
Prior art keywords
image sharpness
precise adjustment
slide projectors
automatic precise
automatic
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
FR120337A
Other languages
French (fr)
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.)
Ernst Leitz Wetzlar GmbH
Original Assignee
Ernst Leitz Wetzlar GmbH
Ernst Leitz GmbH
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 Ernst Leitz Wetzlar GmbH, Ernst Leitz GmbH filed Critical Ernst Leitz Wetzlar GmbH
Application granted granted Critical
Publication of FR1536100A publication Critical patent/FR1536100A/en
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)
  • Microscoopes, Condenser (AREA)
  • Telescopes (AREA)
  • Focusing (AREA)
  • Projection Apparatus (AREA)
FR120337A 1966-09-10 1967-09-07 Device for automatic precise adjustment of image sharpness in slide projectors Expired FR1536100A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL0054516 1966-09-10

Publications (1)

Publication Number Publication Date
FR1536100A true FR1536100A (en) 1968-08-09

Family

ID=7276230

Family Applications (1)

Application Number Title Priority Date Filing Date
FR120337A Expired FR1536100A (en) 1966-09-10 1967-09-07 Device for automatic precise adjustment of image sharpness in slide projectors

Country Status (3)

Country Link
DE (1) DE1472296C3 (en)
FR (1) FR1536100A (en)
GB (1) GB1177567A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2522835A1 (en) * 1982-02-27 1983-09-09 Leitz Ernst Gmbh AUTOMATIC FOCUSING INSTALLATION FOR SLIDING PROJECTORS
EP0437504A1 (en) * 1988-10-04 1991-07-24 Allergan Humphery Range detector for eye instrument having interrogating beam.
WO1993014440A1 (en) * 1992-01-18 1993-07-22 Eastman Kodak Company Method of automatically focusing glass-mounted and glassless slides in slide projectors

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2522835A1 (en) * 1982-02-27 1983-09-09 Leitz Ernst Gmbh AUTOMATIC FOCUSING INSTALLATION FOR SLIDING PROJECTORS
EP0437504A1 (en) * 1988-10-04 1991-07-24 Allergan Humphery Range detector for eye instrument having interrogating beam.
EP0437504B1 (en) * 1988-10-04 1997-05-02 Humphrey Instruments, Inc. Range detector for an ophthalmologic instrument having an interrogating beam
WO1993014440A1 (en) * 1992-01-18 1993-07-22 Eastman Kodak Company Method of automatically focusing glass-mounted and glassless slides in slide projectors
US5379082A (en) * 1992-01-18 1995-01-03 Eastman Kodak Company Method of automatically focusing glass-mounted and glassless slides in slide projectors

Also Published As

Publication number Publication date
GB1177567A (en) 1970-01-14
DE1472296C3 (en) 1974-12-05
DE1472296B2 (en) 1974-04-04
DE1472296A1 (en) 1969-01-16

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