US PATENT SUBCLASS 362 / 304
.~.~.~ Coaxial


Current as of: June, 1999
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362 /   HD   ILLUMINATION

257  DF  LIGHT SOURCE (OR SUPPORT THEREFOR) AND MODIFIER {18}
296  DF  .~ Including reflector {4}
297  DF  .~.~ With or including plural, distinct reflecting surfaces {2}
304.~.~.~ Coaxial {1}
305  DF  .~.~.~.~> With or including means modifying axial rays


DEFINITION

Classification: 362/304

(under subclass 297) Subject matter wherein two of the reflecting surfaces are generated by the revolution of different curved or straight lines about the same axis.

(1) Note. One of the surfaces may be integral with, or be a coating on, the light source envelope.