Vertical reflection type fluorescence microphotometer

Details Vertical reflection type fluorescence microphotometer Vertical reflection type fluorescence microphotometer

1975-01-31

1976-04-13

Willis, Davis L.

Radiant energy

Luminophor irradiation

250461B, 356225, F21K 202

Patent

active

039506495

ABSTRACT:
Vertical reflection type fluorescence microphotometer in which a specimen under examination is irradiated with an ultraviolet ray directed onto the upper surface of the specimen and light reflected back from the specimen is measured by means of a photoelectric tube. The fluorescence microphotometer comprises a light source for emitting an exciting light, a lens for forming an image of the light source at a position where an aperture diaphragm is located, a relay lens for forming an image of the aperture diaphragm through a dichroic mirror in a focal point located at the image side of an objective lens, and a pinhole arranged between the relay lens and the dichroic mirror. The objective lens can form an image of the pinhole on the upper surface of the specimen as well as an image of the fluorescence emitting position of the specimen through the dichroic mirror at a position where a diaphragm is located. The fluorescence transmitted through the diaphragm is received by the photoelectric tube.

REFERENCES:
patent: 3497690 (1970-02-01), Wheeless, Jr. et al.

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