FR1124701A - Perfectionnements aux caméras de prises de vues - Google Patents

Perfectionnements aux caméras de prises de vues

Info

Publication number
FR1124701A
FR1124701A FR1124701DA FR1124701A FR 1124701 A FR1124701 A FR 1124701A FR 1124701D A FR1124701D A FR 1124701DA FR 1124701 A FR1124701 A FR 1124701A
Authority
FR
France
Prior art keywords
photo cameras
cameras
photo
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
Other languages
English (en)
Inventor
Paul Billard
Marc Oliffson
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.)
Electronique & Physique
Laboratoires dElectronique Philips SAS
Original Assignee
Electronique & Physique
Laboratoires dElectronique et de Physique Appliquee
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 Electronique & Physique, Laboratoires dElectronique et de Physique Appliquee filed Critical Electronique & Physique
Application granted granted Critical
Publication of FR1124701A publication Critical patent/FR1124701A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B15/00—Optical objectives with means for varying the magnification
    • G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
    • G02B15/143—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having three groups only
    • G02B15/1431—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having three groups only the first group being positive

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
FR1124701D 1955-04-15 1955-04-15 Perfectionnements aux caméras de prises de vues Expired FR1124701A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1124701T 1955-04-15

Publications (1)

Publication Number Publication Date
FR1124701A true FR1124701A (fr) 1956-10-16

Family

ID=9634072

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1124701D Expired FR1124701A (fr) 1955-04-15 1955-04-15 Perfectionnements aux caméras de prises de vues

Country Status (2)

Country Link
US (1) US2959099A (fr)
FR (1) FR1124701A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3088368A (en) * 1959-01-15 1963-05-07 Farrand Optical Co Inc Variable magnification optical system

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3278752A (en) * 1963-06-17 1966-10-11 Berlyn B Brixner Wide angle optical system having a telecentric stop and an interference filter
US4265519A (en) * 1972-09-25 1981-05-05 Retina Foundation Wide-angle ophthalmoscope
US4505554A (en) * 1979-05-22 1985-03-19 Hubry Fredrik F De Illumination transmission system for format adaptation in projections

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE331944C (de) * 1921-01-19 Friedrich Engelmann Photographisches Objektiv mit angesetztem sammelnden Vergroesserungssystem
US2391430A (en) * 1942-12-02 1945-12-25 Joseph J Macek Camera and projector
US2398276A (en) * 1945-02-05 1946-04-09 Eastman Kodak Co Variable power telescope
US2719457A (en) * 1946-08-19 1955-10-04 Farrand Optical Co Inc Scanning telescope having astigmatized pupil
US2479792A (en) * 1948-05-15 1949-08-23 Bausch & Lomb Optical system for variable power telescopes
US2541014A (en) * 1948-09-23 1951-02-13 Eastman Kodak Co Erector lens for low-power telescopes
US2552238A (en) * 1948-12-09 1951-05-08 Eastman Kodak Co Profile projector and optical comparator
US2586436A (en) * 1950-07-14 1952-02-19 Planer Paul Wide angle oblique projection system
US2747466A (en) * 1954-03-31 1956-05-29 Eastman Kodak Co Optical scanning objective lens system for inspection devices

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3088368A (en) * 1959-01-15 1963-05-07 Farrand Optical Co Inc Variable magnification optical system

Also Published As

Publication number Publication date
US2959099A (en) 1960-11-08

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