US4420979A
Expired / Lapsed
US
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Ultrasonic microscope
Assignee: Olympus Corp
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Filing: 1982-04-20
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Granted: 1983-12-20
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Expires: 2002-04-20
Abstract
Abstract An ultrasonic microscope is formed with an impedance matching layer composed of a chalcogenide glass film on a spherical lens portion of an ultrasonic condensing lens which contacts with an acoustic field medium.
Inventors
- 👤 Isao Momii
- 👤 Noriyoshi Chubachi
- 👤 Junichi Kushibiki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:16
CPC Classifications
G; G10; G10K; G10K11/00; G10K11/02
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
34 words
An ultrasonic microscope comprising an impedance matching layer composed of a chalcogenide glass film, said layer being on a spherical lens portion of an ultrasonic condensing lens which contacts with an acoustic field medium.
Claim 2
Dependent Claim
34 words
An ultrasonic microscope comprising an impedance matching layer composed of a chalcogenide glass film, said layer being on a spherical lens portion of an ultrasonic condensing lens which contacts with an acoustic field medium.
Claim 3
Dependent Claim
46 words
An ultrasonic microscope according to claim 1 in which the impedance matching layer is formed with a chalcogenide glass film selected from the one having an acoustic impedance in the range between 5.53×10 6 kg.m -2 .S -1 and 9.30×10 6 kg.m -2 .S -1 .
Claim 4
Dependent Claim
45 words
An ultrasonic microscope according to claim 2 in which the chalcogenide glass film is formed by melting a compound of three components of As, S and Se in a quartz crucible and in which the film is applied to the lens portion in a vacuum.
Claim 5
Dependent Claim
35 words
An ultrasonic microscope according to claim 2 in which the impedance matching layer is formed with the chalcogenide glass film having a composition ratio of 40% As, on an atomic (MOL) basis and 60% Se.
Claim 6
Dependent Claim
37 words
An ultrasonic microscope according to claim 2 in which the impedance matching layer is formed with the chalcogenide glass film having a composition ratio of 40% As, 30% S and 30% Se on an atomic (MOL) basis.
Claim 7
Dependent Claim
37 words
An ultrasonic microscope according to claim 2 in which the impedance matching layer is formed with the chalcogenide glass film having a composition ratio of 40% As, 40% S and 20% Se on an atomic (MOL) basis.
Claim 8
Dependent Claim
35 words
An ultrasonic microscope according to claim 2 in which the impedance matching layer is formed with the chalcogenide glass film having a composition ratio of 40% As, and 60% S on an atomic (MOL) basis.
Claim 9
Dependent Claim
35 words
An ultrasonic microscope according to claim 2 in which the impedance matching layer is formed with the chalcogenide glass film having a composition ratio of 34% As, and 66% S on an atomic (MOL) basis.
Claim 10
Dependent Claim
35 words
An ultrasonic microscope according to claim 2 in which the impedance matching layer is formed with the chalcogenide glass film having a composition ratio of 29% As, and 71% S on an atomic (MOL) basis.
Claim 11
Dependent Claim
35 words
An ultrasonic microscope according to claim 2 in which the impedance matching layer is formed with the chalcogenide glass film having a composition ratio of 24% As, and 76% S on an atomic (MOL) basis.
Claim 12
Dependent Claim
35 words
An ultrasonic microscope according to claim 2 in which the impedance matching layer is formed with the chalcogenide glass film having a composition ratio of 20% As, and 80% S on an atomic (MOL) basis.
Claim 13
Dependent Claim
35 words
An ultrasonic microscope according to claim 2 in which the impedance matching layer is formed with the chalcogenide glass film having a composition ratio of 16% As, and 84% S on an atomic (MOL) basis.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-12-19 | 1987-06-20 | 1987-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-19 | 1991-06-20 | 1991-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-19 | 1995-06-20 | 1995-12-20 | $7700.00 | Window Closed / Lapsed |