Acoustic wave detection probe and photoacoustic measurement apparatus provided with the same
AssigneeFUJIFILM Corporation
InventorsKaku Irisawa, Katsuya Yamamoto
Life of this patent
Estimating the term…
Abstract
An acoustic wave detection probe includes a light projection section that emits measuring light to be projected onto a subject, an acoustic wave transducer disposed adjacent to the light projection section and capable of detecting an acoustic wave, an acoustic lens provided on a detection side of the acoustic wave transducer, and a housing accommodating the light projection section, the acoustic wave transducer, and the acoustic lens, in which the acoustic lens and a surface portion of the housing adjacent to the acoustic lens are formed to have an optical property in which the average diffuse reflection factor is 85% or more and the average absorption factor is 10% or less in a wavelength range of the measuring light.
Claims19
An acoustic wave detection probe, comprising:
- a light projection section that emits measuring light to be projected onto a subject, wherein a wavelength range of the measuring light is a near infrared wavelength range;
- an acoustic wave transducer disposed adjacent to the light projection section and capable of detecting an acoustic wave;
- an acoustic lens provided on a detection side of the acoustic wave transducer;
- and
- a housing accommodating the light projection section, the acoustic wave transducer, and the acoustic lens,
- wherein the acoustic lens and a surface portion of the housing adjacent to the acoustic lens have an optical property in which the average diffuse reflection factor is 85% or more and the average absorption factor is 10% or less in the wavelength range of the measuring light,
- wherein the optical property of the acoustic lens and/or the surface portion of the housing further includes an optical property in which the average diffuse reflection factor in a blue to green wavelength range is 70% or less.
Dependencies are inferred from the claim text.