12 results about "Acoustic lens" patented technology

A speaker apparatus comprising: a speaker comprising a diaphragm for transmitting an audio output; at least one light source; and an acoustic lens coupled to the speaker and defining a first opening to enable the first audio output to be transmitted from the first opening at a first predetermined angle, wherein the acoustic lens comprises at least one first light guide extending through the first opening, each of the at least one light source is coupled to at least one of the at least one first light guide such that light emitted by the light source is internally reflected along the respective at least one first light guide, and each of the at least one first light guide comprises a plurality of extraction elements arranged continuously along a length of the light guide, each of the plurality of extraction elements is configured to direct light emitted by a respective one of the at least one light source and internally reflected along the respective at least one first light guide towards a direction away from the speaker.

The present invention provides an ultrasonic probe with a novel configuration, comprising an acoustic lens made of polymethylpentene with one concave surface, and an acoustic propagation medium in the concave space resulting from the concave surface. [Solution] The ultrasonic probe 10 includes an ultrasonic propagation medium 11e which is made of a gel-like urethane having an attenuation rate of 0.5 to 4 dB / mm, an acoustic impedance of 1.45 to 1.65 MRayl, and a sound velocity slower than the sound velocity of polymerylpentene. However, the attenuation rate is measured at an ultrasonic frequency of 10 MHz. The gel-like urethane is made of a mixture of soft urethane and a plasticizer with a specific gravity of 0.9 to 1.4 g / cc.

The application discloses a Fresnel spiral acoustic lens and a method for realizing non-invasive acoustic twist ultrasonic acupuncture, and belongs to the field of ultrasonic treatment equipment. The Fresnel spiral acoustic lens is composed of a group of spiral structures with gaps, only includes oppositely arranged incident surfaces and exit surfaces, and the surface opposite to the emitting end of an ultrasonic transducer is the incident surface, which is used for ensuring that the plane acoustic wave emitted by the ultrasonic transducer is vertically incident; and the exit surface is a spiral phase modulation surface of the emitted acoustic wave. The ultrasonic acupuncture instrument made of the acoustic lens comprises the ultrasonic transducer, the Fresnel spiral acoustic lens, a focusing acoustic lens and a rotating disc. The ultrasonic acupuncture instrument further comprises a pulse emission receiver, a micro stepping motor, a rotating shaft and a real-time monitoring device. Through the phase modulation effect of the Fresnel spiral acoustic lens on the incident acoustic wave, the focusing vortex acoustic field with an orbital angular momentum is generated, non-contact non-invasive dynamic twist stimulation on the acupoint of the human body is realized, and the application has the advantages of simple structure, convenient control, accurate focusing, high safety and the like.

An ultrasonic probe lens comprising a lens body comprising a solid material extending outward from an optical lens axis to a periphery, an inner surface of the lens body, and an outer surface of the lens body. A thickness of the lens body as measured from the inner surface to the outer surface varies from an optical lens axis to the periphery such that the lens body is configured with an inner optical profile and an outer optical profile to phase modulate the ultrasonic waves incident upon the lens body to reduce reverberations.

The utility model relates to the probe structure field of mine ultrasonic detector relates to a kind of probe structure of mine ultrasonic surrounding rock fissure detector, including measuring rod, detector probe and acoustic lens mounting frame and probe installation component, the threaded portion on the measuring rod is equipped with detector probe, in the utility model, the limiting hole thread of guide rod is passed through with buckle bolt, so that guide rod and protective frame are screwed together by buckle bolt thread, acoustic lens protective shell can be on guide rod by sliding sleeve, sliding, acoustic lens protective shell can be slidably protected on detector probe and acoustic lens mounting frame, canvas connecting cover can be protected at the connecting place of detector probe and acoustic lens mounting frame, can dustproof and insulation protection is carried out to detector probe and acoustic lens mounting frame, canvas connecting cover and acoustic lens protective shell play anti-aging or joint wear to mine probe sealant, extend the service life of mine probe, avoid probe maintenance in mine.

Provided are a composition for an acoustic lens, containing the following components (a) to (c), (a) a linear polysiloxane having a vinyl group, (b) a linear polysiloxane having two or more Si-H groups in a molecular chain, and (c) surface-treated silica particles, in which, in a particle diameter distribution of the component (c) obtained by a scanning transmission electron microscope, one or more maximal peaks are detected in a range of 16 nm or more and less than 100 nm, and one or more maximal peaks are detected in a range of 8 nm or more and less than 16 nm; an acoustic lens obtained by curing the composition for an acoustic lens; an acoustic wave probe, an ultrasound probe, an acoustic wave measurement apparatus, an ultrasound diagnostic apparatus, a photoacoustic wave measurement apparatus, and an ultrasonic endoscope including the acoustic lens; and a method for manufacturing an acoustic wave probe using the composition for an acoustic lens.

Examples herein include piezoelectric layers of an ultrasound transducer, ultrasound transducers, methods of manufacturing the transducers, and methods of manufacturing the piezoelectric layers of an ultrasound transducer. In one example, a piezoelectric layer of an ultrasound transducer include a non-metallic frame and a piezoelectric material. The non-metallic frame surrounds the piezoelectric material on at least two sides and is coupled to a lens support structure with a structure such that an acoustic lens and the piezoelectric material are oriented substantially parallel to each other. The piezoelectric material is sized to span an area greater than or equal to an active surface of the acoustic lens.

This invention discloses a miniaturized, high sound pressure level directional acoustic wave control device, comprising a housing, inside which are installed a power module, a signal processing module, a power amplification module, and a controller; a directional acoustic wave emitting array is located on the top of the housing; the output of the controller is connected to the inputs of the signal processing module and the power amplification module respectively, the output of the signal processing module is connected to the input of the power amplification module, and the output of the power amplification module is connected to the directional acoustic wave emitting array; the directional acoustic wave emitting array includes a bracket, and multiple ultrasonic transducers are arrayed on the upper surface of the bracket. This invention adopts a compact circuit layout and modular installation structure, significantly reducing the size of the device; it utilizes a high-efficiency signal processing chip and power amplification technology to achieve high sound pressure level output; it improves the directionality of the sound waves through the ultrasonic transducer array and acoustic lens; and it is equipped with an intelligent controller and a power management system to support diverse function adjustments and long-term stable operation.

An acoustic lens of an ultrasound probe includes: a concave lens portion and a convex lens portion that are joined to each other. A propagation speed of an ultrasonic wave in the convex lens portion is slower than a propagation speed of an ultrasonic wave in the concave lens portion. An acoustic impedance of a lens portion on a side of a subject of the concave lens portion and the convex lens portion is within a range of 1.3 to 1.8 MRayl. A material of the concave lens portion is a thermoplastic resin, and a material of the convex lens portion is a thermoplastic resin.

The application relates to the technical field of medical devices, and particularly discloses an ultrasonic endoscope and an ultrasonic probe thereof. The ultrasonic probe of the ultrasonic endoscope comprises a probe shell, an ultrasonic transducer, a first heat-conducting component, a second heat-conducting component and a heat-conducting connector. The ultrasonic transducer comprises an acoustic lens arranged on the probe shell, and an ultrasonic wave vibrator layer and an acoustic backing which are arranged on the acoustic lens and are in a stacked distribution; the first heat-conducting component is arranged on the side of the acoustic backing away from the ultrasonic wave vibrator layer; the heat-conducting connector is arranged between the first heat-conducting component and the ultrasonic wave vibrator layer; and the second heat-conducting component is arranged on the probe shell and is in contact with the first heat-conducting component. The ultrasonic probe of the ultrasonic endoscope realizes effective heat dissipation in the working process through cooperation of the heat-conducting connector, the first heat-conducting component and the second heat-conducting component, thereby avoiding the risk of excessively high temperature rise of the probe, and effectively preventing damage of the core part and burning of a patient.

This application relates to the field of medical device technology, specifically to the structure of a transesophageal ultrasound probe. Because the negative conductive layer of the acoustic probe is located on the side of the conductive matching layer closest to the acoustic lens, the negative conductive layer achieves conductivity with the piezoelectric array element through the conductive matching layer, without affecting the conductivity of both the negative conductive layer and the piezoelectric array element. When cutting the piezoelectric layer, the negative conductive layer does not need to be cut, resulting in better integrity of the negative conductive layer, less brittleness, and higher connection reliability. This improves upon the problem of poor connection reliability in current transesophageal ultrasound probes where the negative conductive layer needs to be cut because it is attached to the piezoelectric array element.