Acoustic microscope
AssigneeHitachi, Ltd.
InventorsHiroshi Kanda, Isao Ishikawa, Toshio Kondo, Kageyoshi Katakura
Life of this patent
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Abstract
In an acoustic microscope wherein a piezoelectric transducer disposed on one face of an ultrasonic wave focusing lens radiates an ultrasonic wave into the lens and also converts into an electric signal a reflected wave from a specimen arranged on the side of the other face of the lens, a reflected wave from the interface of the lens and the reflected wave from the specimen are caused to interfere with each other.
Claims7
An acoustic microscope having a first ultrasonic propagating solid medium, ultrasonic wave generator means for generating an ultrasonic wave from one end of said solid medium, a concave spherical surface formed at the other end of said solid medium, a second ultrasonic propagating medium arranged between said conical spherical surface and a specimen, driver means for driving said ultrasonic wave generator means with an electrical signal to effect generation of the ultrasonic wave whereby in response to the generated ultrasonic wave an ultrasonic wave is reflected from said specimen and a ultrasonic wave is reflected from the boundary between said concave spherical surface and said second ultrasonic propagating medium, and detector means for detecting the ultrasonic wave reflected by said specimen, said driver means driving said ultrasonic wave generator means with an electrical signal having characteristics to cause the reflected ultrasonic wave from said specimen to interfere with the reflected ultrasonic wave from the boundary between said concave spherical surface and said second ultrasonic propagating medium.
Dependencies are inferred from the claim text.