FR2197156B3 - - Google Patents

Info

Publication number
FR2197156B3
FR2197156B3 FR7330307A FR7330307A FR2197156B3 FR 2197156 B3 FR2197156 B3 FR 2197156B3 FR 7330307 A FR7330307 A FR 7330307A FR 7330307 A FR7330307 A FR 7330307A FR 2197156 B3 FR2197156 B3 FR 2197156B3
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.)
Expired
Application number
FR7330307A
Other languages
French (fr)
Other versions
FR2197156A1 (forum.php
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
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 filed Critical Ernst Leitz Wetzlar GmbH
Publication of FR2197156A1 publication Critical patent/FR2197156A1/fr
Application granted granted Critical
Publication of FR2197156B3 publication Critical patent/FR2197156B3/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
    • H01S3/13—Stabilisation of laser output parameters, e.g. frequency or amplitude
    • H01S3/131—Stabilisation of laser output parameters, e.g. frequency or amplitude by controlling the active medium, e.g. by controlling the processes or apparatus for excitation
    • H01S3/134—Stabilisation of laser output parameters, e.g. frequency or amplitude by controlling the active medium, e.g. by controlling the processes or apparatus for excitation in gas lasers
    • 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
    • G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
    • 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
    • G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
    • G03B13/18—Focusing aids
    • G03B13/20—Rangefinders coupled with focusing arrangements, e.g. adjustment of rangefinder automatically focusing camera

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Image Input (AREA)
FR7330307A 1972-08-23 1973-08-21 Expired FR2197156B3 (forum.php)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2241443A DE2241443A1 (de) 1972-08-23 1972-08-23 Verfahren zum automatischen fotoelektrischen einfang von lokalen aenderungen optisch wirksamer objektstrukturen sowie einrichtungen zu seiner durchfuehrung

Publications (2)

Publication Number Publication Date
FR2197156A1 FR2197156A1 (forum.php) 1974-03-22
FR2197156B3 true FR2197156B3 (forum.php) 1976-07-30

Family

ID=5854321

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7330307A Expired FR2197156B3 (forum.php) 1972-08-23 1973-08-21

Country Status (4)

Country Link
US (1) US3833302A (forum.php)
JP (1) JPS4965844A (forum.php)
DE (1) DE2241443A1 (forum.php)
FR (1) FR2197156B3 (forum.php)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3988067A (en) * 1972-12-22 1976-10-26 Nippon Kogaku K.K. Automatic polarization analyzing device
US4191207A (en) * 1978-03-23 1980-03-04 Colkhi, Inc. Irrigation pipe control system
EP0112334A4 (en) * 1982-06-30 1984-11-23 Boeing Co ANGLE DETERMINATION SYSTEM WITH THE AID OF A ROTATING POLARISATOR.
US4688934A (en) * 1982-06-30 1987-08-25 The Boeing Company Rotating polarizer angle sensing system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2003492A1 (de) * 1970-01-27 1971-08-12 Leitz Ernst Gmbh Messverfahren fuer Schrittgeber zum Messen von Laengen oder Winkeln sowie Anordnungen zur Durchfuehrung dieses Messverfahrens

Also Published As

Publication number Publication date
DE2241443A1 (de) 1974-03-07
JPS4965844A (forum.php) 1974-06-26
FR2197156A1 (forum.php) 1974-03-22
US3833302A (en) 1974-09-03

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Legal Events

Date Code Title Description
ST Notification of lapse