CH629312A5 - Rangefinder for focusing cameras - Google Patents
Rangefinder for focusing cameras Download PDFInfo
- Publication number
- CH629312A5 CH629312A5 CH1205377A CH1205377A CH629312A5 CH 629312 A5 CH629312 A5 CH 629312A5 CH 1205377 A CH1205377 A CH 1205377A CH 1205377 A CH1205377 A CH 1205377A CH 629312 A5 CH629312 A5 CH 629312A5
- Authority
- CH
- Switzerland
- Prior art keywords
- filter
- section
- pulse
- echo
- frequency
- Prior art date
Links
- 230000008859 change Effects 0.000 claims description 15
- 238000004804 winding Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000003247 decreasing effect Effects 0.000 claims description 4
- 230000033001 locomotion Effects 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims description 3
- 230000035699 permeability Effects 0.000 description 8
- 238000002592 echocardiography Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000002604 ultrasonography Methods 0.000 description 6
- 230000001965 increasing effect Effects 0.000 description 5
- 238000003199 nucleic acid amplification method Methods 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000003321 amplification Effects 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 4
- 230000001976 improved effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 230000003111 delayed effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 230000002238 attenuated effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 229920002799 BoPET Polymers 0.000 description 1
- 239000005041 Mylar™ Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000881 depressing effect Effects 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000001208 nuclear magnetic resonance pulse sequence Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US72939276A | 1976-10-04 | 1976-10-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH629312A5 true CH629312A5 (en) | 1982-04-15 |
Family
ID=24930826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1205377A CH629312A5 (en) | 1976-10-04 | 1977-10-03 | Rangefinder for focusing cameras |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS6045378B2 (enrdf_load_stackoverflow) |
| AT (1) | AT370885B (enrdf_load_stackoverflow) |
| CA (1) | CA1120578A (enrdf_load_stackoverflow) |
| CH (1) | CH629312A5 (enrdf_load_stackoverflow) |
| DE (1) | DE2744092C3 (enrdf_load_stackoverflow) |
| FR (1) | FR2366582A1 (enrdf_load_stackoverflow) |
| GB (1) | GB1588927A (enrdf_load_stackoverflow) |
| IT (1) | IT1087398B (enrdf_load_stackoverflow) |
Families Citing this family (13)
| 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 (en) * | 1979-07-30 | 1981-02-19 | Dorian Ind Pty Ltd | Method and device for measuring distances |
| CA1154140A (en) * | 1979-10-03 | 1983-09-20 | John M. Reynard | Echo recognition system |
| 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)
| 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 (enrdf_load_stackoverflow) * | 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 (enrdf_load_stackoverflow) * | 1973-08-09 | 1978-02-14 |
-
1977
- 1977-07-06 CA CA000282156A patent/CA1120578A/en not_active Expired
- 1977-09-14 FR FR7727772A patent/FR2366582A1/fr active Granted
- 1977-09-20 GB GB39151/77A patent/GB1588927A/en not_active Expired
- 1977-09-20 JP JP52113184A patent/JPS6045378B2/ja not_active Expired
- 1977-09-27 IT IT27949/77A patent/IT1087398B/it active
- 1977-09-30 DE DE2744092A patent/DE2744092C3/de not_active Expired
- 1977-10-03 CH CH1205377A patent/CH629312A5/de not_active IP Right Cessation
- 1977-10-04 AT AT0706477A patent/AT370885B/de active
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6045378B2 (ja) | 1985-10-09 |
| CA1120578A (en) | 1982-03-23 |
| GB1588927A (en) | 1981-04-29 |
| FR2366582A1 (fr) | 1978-04-28 |
| DE2744092A1 (de) | 1978-04-06 |
| FR2366582B1 (enrdf_load_stackoverflow) | 1980-07-25 |
| DE2744092C3 (de) | 1980-10-09 |
| ATA706477A (de) | 1982-09-15 |
| DE2744092B2 (de) | 1980-02-21 |
| JPS5345267A (en) | 1978-04-22 |
| AT370885B (de) | 1983-05-10 |
| IT1087398B (it) | 1985-06-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased | ||
| PL | Patent ceased |