Photoelectric microscope using position sensitive device

Details Photoelectric microscope using position sensitive device Photoelectric microscope using position sensitive device

1986-04-25

1988-05-17

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250234, H01J 314

Patent

active

047452706

ABSTRACT:
In order to enable an easy acquisition of a bright excellent differential image and an excellent ordinary image of an object requiring observation, the photoelectric microscope using a position sensitive device in accordance with the present invention comprises: a laser light source; an objective lens for collecting, onto the object requiring observation, a laser light emitting from the light source; a beam splitter disposed between the light source and the objective lens; a position sensitive device receiving the laser light emitting from the light source and having transmitted through the object requiring observation; and a position sensitive device receiving, through the beam splitter, the laser light reflected from the object requiring observation. To allow two-dimensional scanning, a pair of opposing galvanometric mirrors may be disposed at a pupil position between the beam splitter and the objective lens. An image processing and indicating means is connected to these position sensitive devices to make easy a simultaneous observation by a plurality of observers.

REFERENCES:
patent: 4318582 (1982-03-01), Minoura et al.
patent: 4329012 (1982-05-01), Minoura et al.
patent: 4455485 (1984-06-01), Hosaka et al.
patent: 4634876 (1987-01-01), Ayata
Coded Apertures and Detectors for Optical Differentiation--Tony Wilson et al., University of Oxford, Dpt. of Engineering Science, Parks Road, Oxford, OXl 3PJ., U.K.--pp. 203-209.
Proceeding of SPIE, 1980, vol. 232, pp. 203-209, T. Wilson.
Publication "O plus E"; March 1981 Edition, No. 116, pp. 79-87, Japan.

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