(under subclass 416) Subject matter including devices to produce colored light standards which utilize a filter to provide colored light for test purposes as opposed to general illumination purposes.
(1) Note. Light standards which utilize a dispersing device such as a prism or a diffraction grating along with a slit to form the various monochromatic light source are placed in the monochromator subclass 331.
(2) Note. Where a colored light standard capable of use as a Class 362 general illumination device is claimed in combination with a support for a substance to be examined by this light standard, the original classification is in subclass 414.
(3) Note. A colored light or its subcombinations capable of use as a test light standard which cannot be distinguished structurally as a colored general illumination device is classified in Class 362, rather than in Class 356.
SEE OR SEARCH CLASS
359, Optics: Systems (Including Communication) and Elements,
291+, for electron beam devices which vary the angle that the beam hits a diffraction surface to produce colored and black and white light producing systems.
434, Education and Demonstration, 98+, for colored light projectors and the mixing of colored light when the claims state the purpose of these devices is for educational or artistic purposes.
