Applications of optical fibers and miniature photonic elements in medical diagnostics

Urszula Blaszczak; Marian Gilewski; Lukasz Gryko; Andrzej Zajac; Andrzej Kukwa; Wojciech Kukwa

doi:10.1117/12.2065134

12 May 2014 Applications of optical fibers and miniature photonic elements in medical diagnostics

Urszula Blaszczak, Marian Gilewski, Lukasz Gryko, Andrzej Zajac, Andrzej Kukwa, Wojciech Kukwa

Proceedings Volume 9228, Optical Fibers and Their Applications 2014; 92280J (2014) https://doi.org/10.1117/12.2065134
Event: 15th Conference on Optical Fibers and Their Applications, 2014, Lipowy Most, Poland

Abstract

Construction of endoscopes which are known for decades, in particular in small devices with the diameter of few millimetres, are based on the application of fibre optic imaging bundles or bundles of fibers in the illumination systems (usually with a halogen source). Cameras - CCD and CMOS – with the sensor size of less than 5 mm emerging commercially and high power LED solutions allow to design and construct modern endoscopes characterized by many innovative properties. These constructions offer higher resolution. They are also relatively cheaper especially in the context of the integration of the majority of the functions on a single chip. Mentioned features of the CMOS sensors reduce the cycle of introducing the newly developed instruments to the market. The paper includes a description of the concept of the endoscope with a miniature camera built on the basis of CMOS detector manufactured by Omni Vision. The set of LEDs located at the operator side works as the illuminating system. Fibre optic system and the lens of the camera are used in shaping the beam illuminating the observed tissue. Furthermore, to broaden the range of applications of the endoscope, the illuminator allows to control the spectral characteristics of emitted light. The paper presents the analysis of the basic parameters of the light-and-optical system of the endoscope. The possibility of adjusting the magnifications of the lens, the field of view of the camera and its spatial resolution is discussed. Special attention was drawn to the issues related to the selection of the light sources used for the illumination in terms of energy efficiency and the possibility of providing adjusting the colour of the emitted light in order to improve the quality of the image obtained by the camera.

Citation Download Citation

Urszula Blaszczak, Marian Gilewski, Lukasz Gryko, Andrzej Zajac, Andrzej Kukwa, and Wojciech Kukwa "Applications of optical fibers and miniature photonic elements in medical diagnostics", Proc. SPIE 9228, Optical Fibers and Their Applications 2014, 92280J (12 May 2014); https://doi.org/10.1117/12.2065134

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available