Optical Design with Narrow-Band Imaging for a Capsule Endoscope

Table 7

Comparison between results obtained in this study and those presented in existent literature.

	Ou-Yang Mang	Lilai Tang	Result of research
Field of view (FOV)	86°	105°	109.8°
F/#	1/2.8	1/2.8	1/2.8
Total length	<3.5 mm	<4.5 mm	3.94 mm
Relative illumination	43.55%	64%	61.7%
Distortion	<20%	15%	19.14%
MTF (maximum field)	53% (50 lp/mm)	40% (45 lp/mm)	34.1% (145 lp/mm)
	26% (100 lp/mm)	20% (114 lp/mm)	12.5% (285 lp/mm)
CMOS pixels	260 kilopixels	2 megapixels	3 megapixels