Manufacturing method of opto-acoustic lens, focusing ultrasonic device and focusing ultrasonic measurement system
A manufacturing method and focused ultrasound technology, which are applied in the measurement of ultrasonic/sonic/infrasonic waves, sound-generating instruments, and ultrasonic therapy, etc., can solve the problems of complexity, large focused focal spot size, and are not suitable for hand-held operation, and are inexpensive and simple to prepare. Simple production method and small device size
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[0043] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.
[0044] refer to figure 1 Shown, the manufacturing method of the photoacoustic lens of the present invention, it comprises the following steps;
[0045] S1. Place the plano-concave lens on the candle flame, so that a layer of uniform candle soot nanoparticles is produced on the concave surface of the plano-concave lens;
[0046] S2. Immerse the plano-concave lens in a container containing polydimethylsiloxane. In order to improve the photoacoustic conversion efficiency, use a dip coating method to form a candle soot nanoparticle-polydimethylsiloxane composite;
[0047] S3, leading out the excess polydimethylsiloxane on the surface of the plano-co...
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