JPS646860A - Acoustic lens for ultrasonic probe - Google Patents
Acoustic lens for ultrasonic probeInfo
- Publication number
- JPS646860A JPS646860A JP62163228A JP16322887A JPS646860A JP S646860 A JPS646860 A JP S646860A JP 62163228 A JP62163228 A JP 62163228A JP 16322887 A JP16322887 A JP 16322887A JP S646860 A JPS646860 A JP S646860A
- Authority
- JP
- Japan
- Prior art keywords
- focused
- aperture
- focal length
- acoustic lens
- ultrasonic wave
- 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.)
- Pending
Links
Landscapes
- Ultra Sonic Daignosis Equipment (AREA)
- Transducers For Ultrasonic Waves (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
PURPOSE:To realize convergence which is uniform in a Y direction over wide range from a shallow part to a deep part by using an acoustic lens which has focuses as many as the number of variations of an aperture in the Y direction. CONSTITUTION:The ultrasonic wave vibrator 11 is constituted by dividing a rectangular prismatic piezoelectric body, a linear array with specific pitch in the X direction is formed, and the vibrator is divided into three at the 1:2:1 area ratio in the Y direction. A scan in the X direction is made as usual and the aperture is varied in the Y direction according to the depth of an object position. A shallow position is scanned in the X direction only by an array of signal electrodes 13a. Then the Y-directional width of an ultrasonic beam becomes short since the beam is focused by a lens part 14a of short focal length Fa. Then, when the position is deep, an X-directional scan is made by signal electrodes 13a, and 13b1 and 13b2. At this time, the ultrasonic wave beam is focused in the Y direction by a lens part 14b of focal length Fb to obtain a beam shape as shown in a figure.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62163228A JPS646860A (en) | 1987-06-30 | 1987-06-30 | Acoustic lens for ultrasonic probe |
PCT/JP1988/000660 WO1989000026A1 (en) | 1987-06-30 | 1988-06-30 | Ultrasonic diagnostic apparatus |
EP88906058A EP0370107B1 (en) | 1987-06-30 | 1988-06-30 | Ultrasonic diagnostic apparatus |
DE3851892T DE3851892T2 (en) | 1987-06-30 | 1988-06-30 | ULTRASONIC DIAGNOSTIC DEVICE. |
KR1019890700270A KR910000233B1 (en) | 1987-06-30 | 1988-06-30 | Ultrasonic diagnostic apparatus |
US07/455,340 US5083568A (en) | 1987-06-30 | 1988-06-30 | Ultrasound diagnosing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62163228A JPS646860A (en) | 1987-06-30 | 1987-06-30 | Acoustic lens for ultrasonic probe |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS646860A true JPS646860A (en) | 1989-01-11 |
Family
ID=15769759
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62163228A Pending JPS646860A (en) | 1987-06-30 | 1987-06-30 | Acoustic lens for ultrasonic probe |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS646860A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006319712A (en) * | 2005-05-13 | 2006-11-24 | Olympus Medical Systems Corp | Electrostatic capacitive ultrasonic transducer and manufacturing method thereof |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5621057A (en) * | 1979-07-31 | 1981-02-27 | Aloka Co Ltd | Electron scanning type supersonic wave probe |
JPS5920157A (en) * | 1982-07-28 | 1984-02-01 | アロカ株式会社 | Ultrasonic diagnostic apparatus |
JPS59174150A (en) * | 1983-03-25 | 1984-10-02 | 横河メディカルシステム株式会社 | Multi-focus ultrasonic diagnostic apparatus |
-
1987
- 1987-06-30 JP JP62163228A patent/JPS646860A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5621057A (en) * | 1979-07-31 | 1981-02-27 | Aloka Co Ltd | Electron scanning type supersonic wave probe |
JPS5920157A (en) * | 1982-07-28 | 1984-02-01 | アロカ株式会社 | Ultrasonic diagnostic apparatus |
JPS59174150A (en) * | 1983-03-25 | 1984-10-02 | 横河メディカルシステム株式会社 | Multi-focus ultrasonic diagnostic apparatus |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006319712A (en) * | 2005-05-13 | 2006-11-24 | Olympus Medical Systems Corp | Electrostatic capacitive ultrasonic transducer and manufacturing method thereof |
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