US PATENT SUBCLASS 374 / 161
.~.~ Change of optical property


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



374 /   HD   THERMAL MEASURING AND TESTING

100  DF  TEMPERATURE MEASUREMENT (E.G., THERMOMETER) {13}
159  DF  .~ Nonelectrical, nonmagnetic, or nonmechanical temperature responsive property {2}
161.~.~ Change of optical property {1}
162  DF  .~.~.~> Color


DEFINITION

Classification: 374/161

Change of optical property:

(under subclass 159) Subject matter wherein the radiation transmission or reflection of the sensor changes.

(1) Note. Such a property would be translucence or polarization.