Ultrasound imaging probe with a gradient refractive index lens

C Beers - US Patent 11,041,951, 2021 - Google Patents
A transducer probe includes a transducer array with rows of transducer elements that each
extend in an elevation direction and is transverse to an azimuth direction, a matching layer …

Gradient index lens and method for its fabrication

GJ Kintz, PJ Stephanou, KE Petersen… - US Patent …, 2017 - Google Patents
2017-02-22 Assigned to INVIS Technologies Corporation reassignment INVIS Technologies
Corporation ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS) …

Hollow light weight lens structure

H Xin, M Liang - US Patent 11,303,036, 2022 - Google Patents
A hollow light-weight, low-cost, and high-performance 3D Luneburg lens structure using
partially-metalized thin film, string, threads, fiber or wire base metamaterial to implement the …

Gradient index metamaterial lens for terahertz radiation

CAO Zhibo, M Kaynak, M Wietstruck… - US Patent …, 2024 - Google Patents
A lens for terahertz radiation, which can be used in an antenna arrangement, comprises a
cylindrical lens body made of silicon having a planar front surface and a planar back …

Ultrasound imaging probe with a gradient refractive index lens

C Beers - US Patent 11,585,922, 2023 - Google Patents
B06B1/0607—Methods or apparatus for generating mechanical vibrations of infrasonic,
sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric …

High contrast gradient index lens antennas

J Chisum, N Garcia - US Patent 11,181,668, 2021 - Google Patents
A film comprising a first plurality of voids is provided, wherein respective ones of the first
plurality of voids have a regular n-gon geometry, and the first plurality of voids are arranged …