US2011303015A1PendingUtilityA1

Photoacoustic measuring apparatus

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Assignee: ICHIHARA SHIGERUPriority: Jun 10, 2010Filed: Jun 2, 2011Published: Dec 15, 2011
Est. expiryJun 10, 2030(~3.9 yrs left)· nominal 20-yr term from priority
Inventors:Shigeru IchiharaYukio FurukawaShuichi Kobayashi
G01N 2201/0634A61B 5/0091G01N 21/1702G01N 29/2418A61B 8/0825A61B 5/4312G01N 2021/1787A61B 5/0095A61B 5/708
54
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Claims

Abstract

A photoacoustic measuring apparatus includes a light source, a movable holding unit which holds an object, a light diffusing unit which fixes the distance between the light diffusing unit and the holding unit and diffuses light incident from the light source, and an acoustic wave obtaining unit which obtains an acoustic wave generated from the object by the light emitted via the holding unit and the light diffusing unit.

Claims

exact text as granted — not AI-modified
1 . A photoacoustic measuring apparatus comprising:
 a light source;   a movable holding unit which holds an object;   a light diffusing unit which fixes the distance between the light diffusing unit and the holding unit and diffuses light incident from the light source; and   an acoustic wave obtaining unit which obtains an acoustic wave generated from the object by the light emitted via the holding unit and the light diffusing unit.   
     
     
         2 . The photoacoustic measuring apparatus according to  claim 1 ,
 wherein the light diffusing unit processes the light incident side of the holding unit to perform surface diffusion.   
     
     
         3 . The photoacoustic measuring apparatus according to  claim 1 ,
 wherein the light diffusing unit is a holographic diffusing plate which adheres to the holding unit.   
     
     
         4 . The photoacoustic measuring apparatus according to  claim 1 ,
 wherein the light diffusing unit is the holding unit which includes particles to perform volume diffusion.   
     
     
         5 . The photoacoustic measuring apparatus according to  claim 4 ,
 wherein the light diffusing unit increases the diffusion coefficient as the light travels from the incident side to the object side.   
     
     
         6 . The photoacoustic measuring apparatus according to  claim 1 , further comprising
 a fixing member which holds the distance between the light diffusing unit and the holding unit constant.   
     
     
         7 . The photoacoustic measuring apparatus according to  claim 1 ,
 wherein the holding unit sandwiches and holds the object between two plates.   
     
     
         8 . The photoacoustic measuring apparatus according to  claim 1 ,
 wherein the holding unit presses and holds the object.

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