US PATENT SUBCLASS 359 / 798
.~ With viewed object or viewed field illumination

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

642  DF  LENS {32}
798.~ With viewed object or viewed field illumination {4}
799  DF  .~.~> Illuminating beam coaxial with lens axis
800  DF  .~.~> Illumination through lens
801  DF  .~.~> With viewed object support
802  DF  .~.~> Magnifier {1}

DEFINITION

Classification: 359/798

With viewed object or viewed field illumination:

(under subclass 642) Subject matter including a light source for illuminating the area viewed through or covered by the lens, or including structure such as a reflector or a prism for directing natural or artificial light on the area viewed, or wherein the lens is adapted to collect and direct natural or artificial light on the area viewed or covered.

(1) Note. A mere transparent or exposed portion is not sufficient for classification here. A light source or light directing or guiding means is necessary.

SEE OR SEARCH THIS CLASS, SUBCLASS:

385+, for compound lens system spacing means with object illumination.

591+, for natural light directing systems.

SEE OR SEARCH CLASS

362, Illumination,

253+, for lights combined with structure not otherwise classifiable; and subclasses 257+ and especially subclasses 268 and 311 for projectors which may include focusing lenses in the light path.