发明名称 |
OPTICAL COHERENCE TOMOGRAPHY DEVICE |
摘要 |
<p>A high-speed optical delay generating method by a rotation reflector in optical coherence tomography, capable of providing a sectional picture with a sufficiently long depth-direction (Z direction) scanning distance, and an optical coherence tomography device therefor are provided. The device comprises a low-coherence light source (1), a half mirror (2) for splitting light from the low-coherence light source (1) into two, that is, into object light towards an object (A) to be examined and reference light, a light delay mechanism (3) for delaying the reference light by means of a rotation reflector (12), a fixed mirror (4) for reflecting/returning the reference light from the light delay mechanism (3), the half-mirror (2) for combining the object light returning from the object (A) to be examined with the reference light returning from the light delay mechanism, and a light detector (11) for detecting interference light including a heterodyne interference beat signal combined at the half mirror (2). <IMAGE></p> |
申请公布号 |
EP1391718(B1) |
申请公布日期 |
2009.01.07 |
申请号 |
EP20020717112 |
申请日期 |
2002.04.11 |
申请人 |
JAPAN SCIENCE AND TECHNOLOGY AGENCY;MTEX MATSUMURA CORPORATION |
发明人 |
TANNO, NAOHIRO;MATSUMURA, SUMIO;HASEGAWA, MICHIRO;HINO, YUKIHIRO;NAKAGAWA, TOHRU;KOHNO, MASAHIRO |
分类号 |
G01B9/02;A61B3/14;G01N21/17;G01N21/47;G02B5/04;G02B5/122;G02B27/00 |
主分类号 |
G01B9/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|