Light scanning probe apparatus using light of low coherence

Details Light scanning probe apparatus using light of low coherence Light scanning probe apparatus using light of low coherence

2005-05-03

2005-05-03

Le, Que T. (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

C250S239000

Reexamination Certificate

active

06888119

ABSTRACT:
A flexible shaft driven to rotate is inserted through a transparent sheath having pliability. By a fiber inserted through the inside thereof, low-coherence light is guided and is made to exit to a living-body tissue side which is an observation target through a lens and a prism forming an exit and entrance portion at the tip portion. Subsequently, the light reflected on the living-body tissue side is guided in order to produce an image. In that case, a positioning member for keeping the exit and entrance portion and the living-body tissue at a proper distance is formed at the tip portion of the sheath or the tip portion of an endoscope through which an optical probe is inserted and, therefore, a stable tomogram image can be produced.

REFERENCES:
patent: 5321501 (1994-06-01), Swanson et al.
patent: 6527708 (2003-03-01), Nakamura et al.
patent: 6-511312 (1994-12-01), None
patent: 11-56786 (1999-03-01), None
patent: 9732182 (1997-09-01), None

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