FR2053040A6 - - Google Patents

Info

Publication number
FR2053040A6
FR2053040A6 FR7022911A FR7022911A FR2053040A6 FR 2053040 A6 FR2053040 A6 FR 2053040A6 FR 7022911 A FR7022911 A FR 7022911A FR 7022911 A FR7022911 A FR 7022911A FR 2053040 A6 FR2053040 A6 FR 2053040A6
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
FR7022911A
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.)
Zeiss Ikon AG
Original Assignee
Zeiss Ikon AG
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 Zeiss Ikon AG filed Critical Zeiss Ikon AG
Application granted granted Critical
Publication of FR2053040A6 publication Critical patent/FR2053040A6/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/28—Systems for automatic generation of focusing signals
    • G02B7/40—Systems for automatic generation of focusing signals using time delay of the reflected waves, e.g. of ultrasonic waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S11/00—Systems for determining distance or velocity not using reflection or reradiation
    • G01S11/16—Systems for determining distance or velocity not using reflection or reradiation using difference in transit time between electrical and acoustic signals

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
FR7022911A 1969-06-28 1970-06-22 Expired FR2053040A6 (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691932969 DE1932969A1 (de) 1969-06-28 1969-06-28 Einrichtung zur automatischen Entfernungseinstellung von Kamera-Objektiven

Publications (1)

Publication Number Publication Date
FR2053040A6 true FR2053040A6 (enrdf_load_stackoverflow) 1971-04-16

Family

ID=5738336

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7022911A Expired FR2053040A6 (enrdf_load_stackoverflow) 1969-06-28 1970-06-22

Country Status (2)

Country Link
DE (1) DE1932969A1 (enrdf_load_stackoverflow)
FR (1) FR2053040A6 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2366582A1 (fr) * 1976-10-04 1978-04-28 Polaroid Corp Dispositif de telemetrie par ultrasons pour appareil de prise de vues

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2366582A1 (fr) * 1976-10-04 1978-04-28 Polaroid Corp Dispositif de telemetrie par ultrasons pour appareil de prise de vues

Also Published As

Publication number Publication date
DE1932969A1 (de) 1971-01-07

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