US PATENT SUBCLASS 359 / 529
.~ 3-Corner retroreflective (i.e., cube corner, trihedral, or triple reflector type)

Current as of: June, 1999
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359 /   HD   OPTICS: SYSTEMS (INCLUDING COMMUNICATION) AND ELEMENTS

515  DF  SIGNAL REFLECTOR {11}
529.~ 3-Corner retroreflective (i.e., cube corner, trihedral, or triple reflector type) {1}
530  DF  .~.~> Unitary plate or sheet comprising plural reflecting elements {3}

DEFINITION

Classification: 359/529

3-Corner retroreflective (i.e., cube corner, trihedral, or triple reflector type):

(under subclass 515) Subject matter wherein the light is reflected from three reflecting surfaces and wherein after the three reflections, it moves in a direction opposite to and parallel to its direction before the three reflections.

(1) Note. The reflections may be external or internal, i.e., the light may be reflected without entering the material from which the reflector is made or the light may enter one surface of the reflector, be reflected three times internally, and exit through the same sur-face.

(2) Note. Single or plural 3-corner reflectors are classified in this subclass but plural reflectors formed into a single substrate are classified in subclass 530.

SEE OR SEARCH THIS CLASS, SUBCLASS:

527, for a structure which reflects light from a signal source remote from an observer.

530, for plural 3-corner reflectors in a single substrate.

831+, for prisms, per se. SEE OR SEARCH CLASS

65, Glass Manufacturing,

357+, for a mold with separating or clamping.

72, Metal Deforming,

379.2+, for deforming sheet metal.

204, Chemistry: Electrical and Wave Energy,

281, for electroforming mold or strips, plates, electrodes apparatus for forming electrolytic elements.

228, Metal Fusion Bonding,

141.1+, for the process of shaping.

249, Static Molds,

117, for container type molding device.

264, Plastic and Nonmetallic Article Shaping or Treating: Processes, 1.9, for reflective composite or multilayer optical article shaping or treating.

342, Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation),

7+, for radio wave cube corner reflectors.

425, Plastic Article or Earthenware Shaping or Treating: Apparatus,

403, for shaping surfaces, per se, and subclass 808 for lens mold.