Apparatus for photon detection including a sample cell with...

Details Apparatus for photon detection including a sample cell with... Apparatus for photon detection including a sample cell with...

2011-08-02

2011-08-02

Le, Que T (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

C250S239000

Reexamination Certificate

active

07989755

ABSTRACT:
The object of the present invention is to acquire the brightness of NA>1 while alleviating the requirement for the precision of positioning for the collection lens of the sample cell in a non-liquid immersion system. In order to achieve the object mentioned above, the bottom of the sample cell is formed in a curved surface, and an arrangement is made to ensure that the fluorescence irradiated from the focusing point would be parallel pencils when emitted by the cell, and in addition a pinhole is disposed at the focal point of the fluorescence collection lens.

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