Optics: measuring and testing – By particle light scattering – With photocell detection
Patent
1987-05-01
1988-07-19
McGraw, Vincent P.
Optics: measuring and testing
By particle light scattering
With photocell detection
350523, 350527, 356244, 356440, G01B 902, G01N 2101
Patent
active
047580887
ABSTRACT:
A reflectance/transmittance structure is disclosed, which is adapted to be used in a microscope (primarily for infrared radiation) of a type disclosed in previous common inventor/common assignee applications. Radiation is passed through a Cassegrain objective lens on its way to the sample. It is reflected by a spherical mirror toward a flat mirror, then back to the spherical mirror, and then back through the sample on its way back to the Cassegrain objective lens. This arrangement permits retention of both the redundant aperturing and the injection mirror features of prior patent applications.
REFERENCES:
patent: 3013467 (1961-12-01), Minsky
patent: 4191940 (1980-03-01), Polcyn et al.
Laser Precision Corporation
McGraw Vincent P.
Plante Thomas J.
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