FR839471A - Improvements to image formation - Google Patents

Improvements to image formation

Info

Publication number
FR839471A
FR839471A FR839471DA FR839471A FR 839471 A FR839471 A FR 839471A FR 839471D A FR839471D A FR 839471DA FR 839471 A FR839471 A FR 839471A
Authority
FR
France
Prior art keywords
image formation
formation
image
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
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.)
I R SYSTEM
Original Assignee
I R SYSTEM
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 I R SYSTEM filed Critical I R SYSTEM
Application granted granted Critical
Publication of FR839471A publication Critical patent/FR839471A/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
    • G03B15/00—Special procedures for taking photographs; Apparatus therefor
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
    • G02B27/0938—Using specific optical elements
    • G02B27/0988—Diaphragms, spatial filters, masks for removing or filtering a part of the beam
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/005—Diaphragms
FR839471D 1937-06-19 1938-06-17 Improvements to image formation Expired FR839471A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US149078A US2244687A (en) 1937-06-19 1937-06-19 Art of image formation

Publications (1)

Publication Number Publication Date
FR839471A true FR839471A (en) 1939-04-04

Family

ID=22528713

Family Applications (1)

Application Number Title Priority Date Filing Date
FR839471D Expired FR839471A (en) 1937-06-19 1938-06-17 Improvements to image formation

Country Status (2)

Country Link
US (1) US2244687A (en)
FR (1) FR839471A (en)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2547030A (en) * 1945-12-01 1951-04-03 Farnsworth Res Corp View finder for television cameras
US2637243A (en) * 1948-11-20 1953-05-05 Leitz Ernst Gmbh Variable phase contrast microscope
US2702312A (en) * 1949-10-03 1955-02-15 Columbia Pictures Corp Lighting for television
US2784248A (en) * 1950-03-03 1957-03-05 Columbia Pictures Corp Lighting system in taking moving pictures and in television system
US2683797A (en) * 1951-04-30 1954-07-13 Harlow B Grow Apparatus for producing controlled lighting effects
US2726572A (en) * 1952-10-27 1955-12-13 John J Braund Method of and apparatus for photographing
US2928734A (en) * 1954-11-15 1960-03-15 Zampol Peter Method of photography
US2981147A (en) * 1955-06-02 1961-04-25 Lange Instr Company Apparatus for forming contour lines
US3006241A (en) * 1957-02-01 1961-10-31 Alvin M Marks Method and apparatus for overhead projection
US3039357A (en) * 1957-03-11 1962-06-19 Manny Eagle Photographic assembly and apparatus therefor
US3059525A (en) * 1957-08-09 1962-10-23 Shuftan Eugen Julius Photocomposition systems
US3339997A (en) * 1962-07-30 1967-09-05 Plastic Contact Lens Company Bifocal ophthalmic lens having different color distance and near vision zones
FR1455786A (en) * 1964-07-29 1966-10-21 Omnium Tech D Etudes Et Realis Method for animating drawings and apparatus for carrying out said method or a similar method
US3655276A (en) * 1969-10-31 1972-04-11 American Optical Corp Ophthalmic refracting chart projector
GB1373715A (en) * 1972-01-20 1974-11-13 Redifon Ltd Optical systems
US3846009A (en) * 1973-09-10 1974-11-05 Bell Telephone Labor Inc Apparatus for enhanced depth of field viewing
US3970361A (en) * 1974-10-16 1976-07-20 Dynell Electronics Corporation Three-dimensional display system
US3989348A (en) * 1975-04-28 1976-11-02 Rca Corporation Optical scanner with large depth of focus
US4131342A (en) * 1975-08-22 1978-12-26 Dudley Leslie P Stereoscopic optical viewing system
US3985420A (en) * 1975-10-10 1976-10-12 The United States Of America As Represented By The Secretary Of The Air Force Mechanical step scanner
US4063814A (en) * 1976-04-06 1977-12-20 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Optical scanner
US4486076A (en) * 1981-10-29 1984-12-04 Sri International Real time stereo imaging
DE3413374A1 (en) * 1984-04-10 1985-10-17 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt OPTICAL ADJUSTMENT PROCEDURE
DE3536972A1 (en) * 1985-10-17 1987-04-23 Wolf Gmbh Richard CIRCUIT ARRANGEMENT FOR A FLASH LIGHT STROBOSCOPE FOR EXAMINING VOICE LIP FUNCTIONS
DE3607767C1 (en) * 1986-03-08 1987-04-02 Wolf Gmbh Richard Video endoscope

Also Published As

Publication number Publication date
US2244687A (en) 1941-06-10

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