Spectrophotometer

Details Spectrophotometer Spectrophotometer

2007-09-27

2011-11-01

Evans, F. L. (Department: 2877)

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

C356S244000, C356S440000, C356S319000, C356S246000

Reexamination Certificate

active

08049884

ABSTRACT:
A liquid sample is dropped onto the upper surface of a transparent and cylindrical light-transmitting body (22), and the liquid sample is maintained as a droplet by the surface tension. From above the liquid sample, a transparent cover plate (25) is lowered down to the position where the lower surface thereof touches a spacer (23) in order that the liquid sample is held in the small gap formed between the upper surface of the light-transmitting body (22) and the lower surface of the transparent cover plate (25). A measurement light is provided into the liquid sample held in this manner from immediately above it, and passes through the liquid sample. The transmitted light emitted downwards through the light-transmitting body (22) is introduced into a spectro-detecting unit to be spectro-measured. The measurement optical path length can be adjusted by the height of the spacer (23). This enables an easy transmission spectro-measurement of an extremely small amount of liquid sample.

REFERENCES:
patent: 7365852 (2008-04-01), Schleifer
patent: 7375815 (2008-05-01), Kralik
patent: 49-027485 (1974-03-01), None
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patent: 2006-023088 (2006-01-01), None
patent: 2009-036664 (2009-02-01), None
Written Opinion of the International Searching Authority dated Oct. 30, 2007, issued in corresponding International application No. PCT/JP2007/001048.

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