초록 ▼

There is disclosed a reflectometer comprising a one-piece molded housing that includes a radiation guide, and a source means and detector means contained within the housing, for the analysis of a test element. The guide, source means and detector means are disposed so that the detector means detects

There is disclosed a reflectometer comprising a one-piece molded housing that includes a radiation guide, and a source means and detector means contained within the housing, for the analysis of a test element. The guide, source means and detector means are disposed so that the detector means detects reflectance from the test element that is substantially free of specular reflectance.

대표청구항 ▼

In a reflectometer adapted for measuring non-uniform distribution of density and comprising source means for generating radiation suitable to illuminate a test element, detector means for detecting radiation reflected from such test element, and one piece molded housing means in which said source me

In a reflectometer adapted for measuring non-uniform distribution of density and comprising source means for generating radiation suitable to illuminate a test element, detector means for detecting radiation reflected from such test element, and one piece molded housing means in which said source means and said detector means are mounted, said housing means including as portions integral therewith, means for predeterminedly positioning such test element and optically transmissive radiation guide means constructed to guide said radiation from said source means to be positioned test element, the improvement wherein (i) said source means includes means for at least partially collimating said illuminating radiation, (ii) said radiation guide means includes an internally reflective surface constructed and located to direct said beam to illuminate a selected portion of a positioned test element, and (iii) said detector means is located with respect to said positioning means, said source means and said reflecting surface so that the test element is illuminated by a whole spot of light that is disposed approximately centered above said detector means, and said detector means receives from an illuminated test element only radiation diffusely reflected from the illuminated test element.