AtDDtA1: The Light over the Ranges [Comparative Usage]

[Keith]

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[Photo]

http://tinyurl.com/2gys6r
FIGS. 21a and 21b show an apparatus suitable for practicing the  
current invention which is similar to that described for the prior  
art in connection with FIGS. 7 and 8, but lacks stop 340. Adjustable  
stop 340 is an additional component that adds complexity to the  
optical hardware. Further, in order to be practical for use in a  
manufacturing environment, adjustable stop 340 must be controlled  
based on the sample location that is being measured. This adds  
complexity and cost to the mechanics, electronics, control-software,  
and algorithm recipes. Also, aperture stop 340 blocks certain light  
from being detected, thereby eliminating a portion of the potential  
signal. As shown in FIG. 21b, with the present invention, higher  
order scattered **light over the ranges** 363 and 367 can be detected  
by the optics to add to the measured intensity and improve the signal- 
to-noise ratio.

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I sat long with my head on my hands, thinking--the world about me in
ruins, never to be built up. Then I went up to my room, paused at the
wardrobe, changed my black coat to that in which I had arrived, and went
softly down-stairs again. The waning moon had just risen late, and threw
a weird light over the ranges of buildings, the gateways and towers.

   -- Bog-Myrtle and Peat: Tales Chiefly Of Galloway Gathered From  
The Years 1889 To 1895

              -- S.R. Crockett