TY - JOUR
T1 - Light efficient imaging with improved resolving ability
AU - Zalevsky, Zeev
AU - Sabo, Eran
AU - Mendlovic, David
AU - Marom, Emanuel
PY - 2001/4/1
Y1 - 2001/4/1
N2 - The optical transfer function (OTF) in imaging systems with incoherent illumination is analyzed in order to obtain an optical system, which maintains high light-collection efficiency and acceptable performance. The desired OTF is such that it provides a smaller point spread function needed to obtain an improved spatial resolution without sacrificing the energy collection efficiency of the system. The resolution improvement is associated with a contrast degradation of the output image. The contrast can however be digitally enhanced. The paper includes a theoretical description, computer feasibility studies and performance analysis.
AB - The optical transfer function (OTF) in imaging systems with incoherent illumination is analyzed in order to obtain an optical system, which maintains high light-collection efficiency and acceptable performance. The desired OTF is such that it provides a smaller point spread function needed to obtain an improved spatial resolution without sacrificing the energy collection efficiency of the system. The resolution improvement is associated with a contrast degradation of the output image. The contrast can however be digitally enhanced. The paper includes a theoretical description, computer feasibility studies and performance analysis.
KW - Coherent transfer function
KW - Light efficiency
KW - Optical transfer function
KW - Point-spread function
UR - http://www.scopus.com/inward/record.url?scp=0035312480&partnerID=8YFLogxK
U2 - 10.1016/s0030-4018(01)01019-7
DO - 10.1016/s0030-4018(01)01019-7
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AN - SCOPUS:0035312480
SN - 0030-4018
VL - 190
SP - 69
EP - 77
JO - Optics Communications
JF - Optics Communications
IS - 1-6
ER -