A filtering macrolens was developed to simultaneously achieve macro-optical imaging and correct spectrum aberration. The macrolens was a doublet lens comprising a filtering lens and a close-up lens. The shape of the filtering lens was designed to eliminate the optical path differences between the light rays in the absorbing medium. The close-up lens was designed to decrease the effective focal length of an ordinary camera lens to provide high magnification capability and collimate the diverging beams through the filtering lens. Experimental results demonstrated that the spectrum uniformity of the macro-optical images was markedly improved by the filtering macrolens. This innovation may be used in finite conjugate optical systems.
© 2013 Optical Society of America
Optical Design and Fabrication
Original Manuscript: May 6, 2013
Revised Manuscript: June 12, 2013
Manuscript Accepted: June 13, 2013
Published: July 11, 2013
Yu-Hsuan Lin, Jyun-Yi Lai, Hsin-Yi Tsai, Han-Chao Chang, Hung Ji Huang, Yung-Fu Chen, and Kuo-Cheng Huang, "Optical imaging with spectrum aberration correction using a filtering macrolens," Appl. Opt. 52, 5058-5064 (2013)