Apparatus for producing an optical image contrast

Details Apparatus for producing an optical image contrast Apparatus for producing an optical image contrast

1989-08-02

1990-10-16

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

2502017, 350509, G01J 120

Patent

active

049637240

ABSTRACT:
An apparatus for producing an optical image contrast which may be used in a microscope is disclosed. Specifically, the apparatus is based on the Moire effect and uses two screens or gratings which are rotated simultaneously at different angular velocities in order to increase the depth of focus and resolution achievable with conventional systems.

REFERENCES:
patent: 3853398 (1974-12-01), Kano
patent: 3926500 (1975-12-01), Frosch et al.
Xiao et al., "A Real-Time Confocal Scanning Optical Microscope", SPIE, vol. 809, Scanning Imaging Technology (1987), pp. 107-113.

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