US PATENT SUBCLASS 362 / 257
LIGHT SOURCE (OR SUPPORT THEREFOR) AND MODIFIER

Current as of: June, 1999
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362 /   HD   ILLUMINATION

257LIGHT SOURCE (OR SUPPORT THEREFOR) AND MODIFIER {18}
258  DF  .~> With extensible electric cord storage member
259  DF  .~> Laser type
260  DF  .~> Fluorescent type
261  DF  .~> Carbon arc type {1}
263  DF  .~> Ionized gas or vapor light source {2}
266  DF  .~> Nonelectric type
267  DF  .~> With sealing means or artifical atmosphere
268  DF  .~> Plural serial lens elements or components
269  DF  .~> Tiltable or rotatable as a unit {3}
276  DF  .~> Condition responsive
277  DF  .~> Adjustable or repositionable modifier {4}
285  DF  .~> Adjustable or repositionable light source or light source support {4}
290  DF  .~> Louvered or grid type modifier {2}
293  DF  .~> Including selected wavelength modifier (e.g., filter)
294  DF  .~> With ventilating, cooling or heat insulating means
295  DF  .~> With rheostat or switch
296  DF  .~> Including reflector {4}
311  DF  .~> Including translucent or transparent modifier

DEFINITION

Classification: 362/257

(under the class definition) Subject matter comprised of a light source (see, Glossary: "Light Source") or support therefor and a modifier (see, Glossary: "Light Modifier") structurally related to the light source so as to modify light therefrom.

(1) Note. Nominal recitations of a light unit (e.g., "light unit", "headlight", "lamp") generally imply only a source of light and are insufficient basis for placement in this subclass and the subclasses indented hereunder unless a light

source and a light modifier must be imputed from the claimed disclosure to render the claimed combination structurally complete and operative for the functions referred to in the claim.

(2) Note. Light sources having light modifying envelopes are not classifiable, per se, in this class (362). (For the loci of such subject matter, see the Search Class Notes below). However, combinations of such light sources with additional modifying means are classifiable in this subclass and the subclasses indented hereunder.

SEE OR SEARCH THIS CLASS, SUBCLASS:

317+, for combinations of a modifier and a light source which may be spatially related but are not related by the structure of the claimed combination.

SEE OR SEARCH CLASS 313, Electric Lamp and Discharge Devices,

110+, for light sources having light modifying envelopes, per se.

399, Electrophotography, for illumination systems including light sources used in electrophotos:graphic devices, specifically

177+, for exposure.