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AU510193B2 - Ultrasonic ranging system for a camera - Google Patents
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AU510193B2 - Ultrasonic ranging system for a camera - Google Patents

Ultrasonic ranging system for a camera

Info

Publication number
AU510193B2
AU510193B2 AU28287/77A AU2828777A AU510193B2 AU 510193 B2 AU510193 B2 AU 510193B2 AU 28287/77 A AU28287/77 A AU 28287/77A AU 2828777 A AU2828777 A AU 2828777A AU 510193 B2 AU510193 B2 AU 510193B2
Authority
AU
Australia
Prior art keywords
camera
ranging system
ultrasonic ranging
ultrasonic
ranging
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.)
Ceased
Application number
AU28287/77A
Other versions
AU2828777A (en
Inventor
Juerg Muggli
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.)
Polaroid Corp
Original Assignee
Polaroid Corp
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 Polaroid Corp filed Critical Polaroid Corp
Publication of AU2828777A publication Critical patent/AU2828777A/en
Application granted granted Critical
Publication of AU510193B2 publication Critical patent/AU510193B2/en
Anticipated expiration legal-status Critical
Ceased 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
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/06—Systems determining the position data of a target
    • G01S15/08—Systems for measuring distance only
    • G01S15/10—Systems for measuring distance only using transmission of interrupted, pulse-modulated waves
    • G01S15/102—Systems for measuring distance only using transmission of interrupted, pulse-modulated waves using transmission of pulses having some particular characteristics
    • G01S15/104—Systems for measuring distance only using transmission of interrupted, pulse-modulated waves using transmission of pulses having some particular characteristics wherein the transmitted pulses use a frequency- or phase-modulated carrier wave

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Optics & Photonics (AREA)
AU28287/77A 1976-10-04 1977-08-26 Ultrasonic ranging system for a camera Ceased AU510193B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US72930276A 1976-10-04 1976-10-04
US729392 1976-10-04

Publications (2)

Publication Number Publication Date
AU2828777A AU2828777A (en) 1979-03-01
AU510193B2 true AU510193B2 (en) 1980-06-12

Family

ID=24930424

Family Applications (1)

Application Number Title Priority Date Filing Date
AU28287/77A Ceased AU510193B2 (en) 1976-10-04 1977-08-26 Ultrasonic ranging system for a camera

Country Status (1)

Country Link
AU (1) AU510193B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU664792B2 (en) * 1993-03-04 1995-11-30 James Michael Bell Temperature responsive 3-way line valve with shape memory alloy actuator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU664792B2 (en) * 1993-03-04 1995-11-30 James Michael Bell Temperature responsive 3-way line valve with shape memory alloy actuator

Also Published As

Publication number Publication date
AU2828777A (en) 1979-03-01

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