US PATENT SUBCLASS 359 / 591
BUILDING INTERIOR ILLUMINATION WITH REFLECTED, REFRACTED OR PREDETERMINED ANGLE OF ENTRANCE OF OUTSIDE LIGHT

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

591BUILDING INTERIOR ILLUMINATION WITH REFLECTED, REFRACTED OR PREDETERMINED ANGLE OF ENTRANCE OF OUTSIDE LIGHT {3}
592  DF  .~> Unitary light transmitting member comprising plural reflecting or refracting elements {3}
596  DF  .~> Slats or strips
597  DF  .~> With reflection {1}

DEFINITION

Classification: 359/591

BUILDING INTERIOR ILLUMINATION WITH REFLECTED, REFRACTED OR PRE-DETERMINED ANGLE OF ENTRANCE OF OUTSIDE LIGHT:

(under the class definition) Subject matter including means to reflect or refract light to the interior of a building from the exterior or to allow only light from predetermined angles to enter the building.

(1) Note. The light is usually sun or natural light. However, light from an incident artificial source which is outside for some other purpose, such as a street light, may be directed into the building.

(2) Note. For classification here, the direction of the light must be changed to facilitate its entry into the building or for controlling the direction of light. A mere window pane which is flat on both sides is not here but is in Class 52, Static Structures (e.g., Buildings), subclasses 204+.

(3) Note. A combination of nominal fiber optics structure with structure appro-priate to this subclass is classified here. However, similar subject mattter with details to fiber optic structure is classi-fied in Class 385, Optical Waveguides.

SEE OR SEARCH THIS CLASS, SUBCLASS:

290+, for fluids which may be chemically or physically altered to control the amount of light passing through a panel.

483+, for light control with polarizers.

601+, for glare reducing structure. 885+, for light filters.

SEE OR SEARCH CLASS

40, Card, Picture, or Sign Exhibiting,

559, for signs using external light source.

52, Static Structures (e.g., Buildings),

204.1+, for windows. See (2) Note above.

126, Stoves and Furnaces,

561+, for solar heat collector.

165, Heat Exchange,

48.2, for solar heating and cooling.

362, Illumination, for artificial light directing, especially 317+,.