We consider the role of the detector size in the imaging of confocal systems. We introduce a criterion for detector size to give true confocal operation and show that the lateral resolution is considerably more sensitive to detector size than is the depth-discrimination or optical-sectioning property.
© 1987 Optical Society of America
Original Manuscript: August 11, 1986
Manuscript Accepted: January 5, 1987
Published: April 1, 1987
T. Wilson1 and A. R. Carlini, "Size of the detector in confocal imaging systems," Opt. Lett. 12, 227-229 (1987)