US PATENT SUBCLASS 264 / 1.31
.~ Light polarizing article or holographic article

Current as of: June, 1999
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264 /   HD   PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES

1.1  DF  OPTICAL ARTICLE SHAPING OR TREATING {11}
1.31.~ Light polarizing article or holographic article {3}
1.32  DF  .~.~> Lens
1.33  DF  .~.~> Optical recording medium
1.34  DF  .~.~> Film or sheet {1}

DEFINITION

Classification: 264/1.31

Light polarizing article or holos:graphic article:

(under subclass 1.1) Processes directed to (a) aligning or orienting the molecular or structural composition of a

plastic material to produce an article or coated article that allows light to pass therethrough in a single plane or (b) a holos:graphic article, or otherwise testing said article.

SEE OR SEARCH THIS CLASS, SUBCLASS:

108, for a process of orienting particles in a fluent matrix material.

288.4+, and 291+, for processes of stretching to impart bifringence properties to articles.

437+, for a process of orienting particles by directly applying electrical energy to the particles

SEE OR SEARCH CLASS

356, Optics: Measuring and Testing, 347+, for holos:graphic interferometry in general.

359, Optics: Systems (Including Communication) and Elements,

1+, for holos:graphic systems or elements, per se, subclasses 3+ for particular recording medium, and subclasses 383+ for polarizers, per se, or use of polarized light.

430, Radiation Imagery Chemistry: Process, Composition, or Product Thereof,

1, for a process of making a hologram or the composition therefor.