Patent ID: 11931203
Assignee: FUJIFILM SONOSITE, INC.
Field: Medical technology (Instruments)
Classification: CPC A  B  G  H  Y | IPC A  B  G  H

Claim 8:
9. A method of constructing a lens for an ultrasound transducer, comprising:
fabricating an acoustic lens layer having a center curved section and two flat side sections, wherein fabricating the center curved section includes fabricating a center portion having a midpoint and two endpoints such that the center portion has a first thickness at the midpoint and a second thickness at each of the two endpoints, and wherein:
an average of the first thickness and the second thickness is substantially equal to an odd multiple of a ¼ wavelength of a center frequency of the ultrasound transducer;
the first thickness is between about 95% and about 99.5% of the odd multiple of the ¼ wavelength of the center frequency; and
the second thickness is between about 100.5% and about 105% of the odd multiple of the ¼ wavelength of the center frequency.