CA1120578A - Telemetre ultrasonore pour camera - Google Patents

Telemetre ultrasonore pour camera

Info

Publication number
CA1120578A
CA1120578A CA000282156A CA282156A CA1120578A CA 1120578 A CA1120578 A CA 1120578A CA 000282156 A CA000282156 A CA 000282156A CA 282156 A CA282156 A CA 282156A CA 1120578 A CA1120578 A CA 1120578A
Authority
CA
Canada
Prior art keywords
filter
burst
frequency
varying
during
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
CA000282156A
Other languages
English (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
Application granted granted Critical
Publication of CA1120578A publication Critical patent/CA1120578A/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
    • 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)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Optics & Photonics (AREA)
  • Acoustics & Sound (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Focusing (AREA)
  • Automatic Focus Adjustment (AREA)
  • Rehabilitation Tools (AREA)
CA000282156A 1976-10-04 1977-07-06 Telemetre ultrasonore pour camera Expired CA1120578A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US72939276A 1976-10-04 1976-10-04
US729,392 1985-05-01

Publications (1)

Publication Number Publication Date
CA1120578A true CA1120578A (fr) 1982-03-23

Family

ID=24930826

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000282156A Expired CA1120578A (fr) 1976-10-04 1977-07-06 Telemetre ultrasonore pour camera

Country Status (8)

Country Link
JP (1) JPS6045378B2 (fr)
AT (1) AT370885B (fr)
CA (1) CA1120578A (fr)
CH (1) CH629312A5 (fr)
DE (1) DE2744092C3 (fr)
FR (1) FR2366582A1 (fr)
GB (1) GB1588927A (fr)
IT (1) IT1087398B (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2801251A1 (de) * 1978-01-12 1979-07-19 Agfa Gevaert Ag Vorrichtung zur scharfeinstellung des objektivs einer fotografischen oder kinematografischen kamera
US4315676A (en) * 1978-11-13 1982-02-16 Polaroid Corporation Camera with auto ranging focusing and flash fire control
US4238143A (en) * 1979-01-02 1980-12-09 Polaroid Corporation Autofocus movie camera having pulsed terminal drive means
US4239354A (en) * 1979-01-02 1980-12-16 Polaroid Corporation Autofocus movie camera having improved focus response
WO1981000456A1 (fr) * 1979-07-30 1981-02-19 Dorian Ind Pty Ltd Procede et dispositif de mesure de distance
CA1154140A (fr) * 1979-10-03 1983-09-20 John M. Reynard Systeme de reconnaissance d'echo
US4307952A (en) * 1980-06-03 1981-12-29 Polaroid Corporation Auto focus camera with electronic lens disc pawl release arrangement
JPS58187916A (ja) * 1982-04-28 1983-11-02 West Electric Co Ltd 超音波測距装置
GB2173620A (en) * 1985-04-11 1986-10-15 Frankie Wang Automatic distance-off alarms for reversing vehicles
GB2352294A (en) * 1996-09-11 2001-01-24 Michael William Hustwitt Ultrasonic object detection system
CN102478655A (zh) * 2010-11-23 2012-05-30 比亚迪股份有限公司 超声波测距方法、测距系统及具有其的摄像组件
DE102013200434A1 (de) * 2013-01-14 2014-07-17 Robert Bosch Gmbh Vorrichtung und Verfahren zur Umfeldsensorik
US10809346B2 (en) * 2017-06-30 2020-10-20 Rohm Co., Ltd. Semiconductor device, ultrasonic sensor, and moving body

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1932969A1 (de) * 1969-06-28 1971-01-07 Zeiss Ikon Ag Einrichtung zur automatischen Entfernungseinstellung von Kamera-Objektiven
JPS4947861A (fr) * 1972-09-14 1974-05-09
US3815409A (en) * 1973-02-15 1974-06-11 A Macovski Focused sonic imaging system
DE2317662B2 (de) * 1973-04-07 1975-01-30 Electroacustic Gmbh, 2300 Kiel Verfahren zur Entfernungsmessung nach der Echolaufzeitmethode
JPS534140B2 (fr) * 1973-08-09 1978-02-14

Also Published As

Publication number Publication date
FR2366582B1 (fr) 1980-07-25
CH629312A5 (en) 1982-04-15
ATA706477A (de) 1982-09-15
AT370885B (de) 1983-05-10
IT1087398B (it) 1985-06-04
DE2744092B2 (de) 1980-02-21
DE2744092A1 (de) 1978-04-06
DE2744092C3 (de) 1980-10-09
JPS6045378B2 (ja) 1985-10-09
FR2366582A1 (fr) 1978-04-28
JPS5345267A (en) 1978-04-22
GB1588927A (en) 1981-04-29

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Legal Events

Date Code Title Description
MKEX Expiry