Direct View Confocal Imaging Systems Using a Slit Aperture

  • W. B. Amos
  • J. G. White


Minsky’s original confocal microscope (1957) scans a specimen under a spot of light and detects emission from the same spot, using circular apertures to define both the illuminating and the emitted beams. Many subsequent designs have used multiple or slit-shaped apertures, retaining some of the confocal effect but permitting faster imaging. In some of these microscopes, the succession of optical images is so fast that the flicker-fusion frequency (ca. 18 Hz) of human vision is exceeded, giving an impression of continuous, direct viewing. This chapter concentrates on the type of direct view confocal microscope that uses a slit aperture and an imaging detector. Various forms of this microscope are now available commercially and their use seems likely to increase.


Stereo Image Conventional Microscope Point Scanner Aperture Plane Confocal Image System 
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Copyright information

© Springer Science+Business Media New York 1995

Authors and Affiliations

  • W. B. Amos
    • 1
  • J. G. White
    • 2
  1. 1.MRC Laboratory of Molecular BiologyCambridgeUK
  2. 2.Microscopy ResourceUniversity of WisconsinMadisonUSA

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