A confocal laser scanning endoscope using a varifocal scanning mirror

Author

Sasaki, T. ; Hane, Kazuhiro

Author_Institution

Dept. of Nanomech., Tohoku Univ., Sendai, Japan

fYear

2013

fDate

16-20 June 2013

Firstpage

1412

Lastpage

1415

Abstract

A Confocal laser scanning endoscope using a varifocal scanning mirror for wide field of view with a focus tuning function is presented. To verify the feasibility of the endoscope, a confocal laser scanning system using the varifocal scanning mirror is constructed in endoscopic optics configuration. The height of optical components is set at less than 5 mm. The beam spot distortion at large optical scan angle in both static beam condition and dynamic beam scanning condition is evaluated. The confocal laser scanning measurement is demonstrated.

Keywords

endoscopes; laser beams; laser mirrors; laser tuning; optical distortion; beam spot distortion; confocal laser scanning endoscope; dynamic beam scanning condition; endoscopic optics configuration; focus tuning function; optical component height; optical scan angle; static beam scanning condition; varifocal scanning mirror; Laser beams; Measurement by laser beam; Mirrors; Optical device fabrication; Optical distortion; Optical fibers; Optical imaging; Confocal laser scanning endoscope; air drag; dynamic deformation; scanning mirror; varifocal mirror;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS & EUROSENSORS XXVII), 2013 Transducers & Eurosensors XXVII: The 17th International Conference on

Conference_Location

Barcelona

Type

conf

DOI

10.1109/Transducers.2013.6627043

Filename

6627043