US Patent Class 359
OPTICS: SYSTEMS (INCLUDING COMMUNICATION) AND ELEMENTS-- Main Headings




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Current as of: June, 1999
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CLASS NOTES
1  DF  HOLOGRAPHIC SYSTEM OR ELEMENT {16}
107  DF  OPTICAL COMPUTING WITHOUT DIFFRACTION {1}
109  DF  OPTICAL COMMUNICATION {13}
196  DF  DEFLECTION USING A MOVING ELEMENT OR MEDIUM (OFFSETTING OR CHANGING AT LEAST A PORTION OF THE BEAM) {3}
227  DF  LIGHT CONTROL BY OPAQUE ELEMENT OR MEDIUM MOVABLE IN OR THROUGH LIGHT PATH {6}
237  DF  OPTICAL MODULATOR {3}
325  DF  OPTICAL DEMODULATOR
326  DF  OPTICAL FREQUENCY CONVERTER {5}
333  DF  OPTICAL AMPLIFIER {11}
350  DF  HAVING SIGNIFICANT INFRARED OR ULTRAVIOLET PROPERTY {8}
362  DF  COMPOUND LENS SYSTEM {8}
436  DF  SCALE OR INDICIA READING {4}
443  DF  PROJECTION SCREEN {13}
462  DF  STEREOSCOPIC {3}
478  DF  RELIEF ILLUSION {1}
480  DF  BINOCULAR DEVICES {2}
483  DF  POLARIZATION WITHOUT MODULATION {2}
503  DF  EXTENDED SPACING STRUCTURE FOR OPTICAL ELEMENTS {3}
507  DF  PROTECTION FROM MOISTURE OR FOREIGN PARTICLE {6}
515  DF  SIGNAL REFLECTOR {11}
554  DF  IMAGE STABILIZATION {2}
558  DF  DIFFRACTION {3}
577  DF  LIGHT INTERFERENCE {2}
591  DF  BUILDING INTERIOR ILLUMINATION WITH REFLECTED, REFRACTED OR PREDETERMINED ANGLE OF ENTRANCE OF OUTSIDE LIGHT {3}
599  DF  DIFFUSING OF INCIDENT LIGHT
600  DF  BARREL END EYE GUARD (E.G., SHIELD OR CUSHION, ETC.)
601  DF  GLARE OR UNWANTED LIGHT REDUCTION {6}
615  DF  LIGHT DISPERSION
616  DF  KALEIDOSCOPE {1}
618  DF  SINGLE CHANNEL SIMULTANEOUSLY TO OR FROM PLURAL CHANNELS (E.G., LIGHT DIVIDING, COMBINING, OR PLURAL IMAGE FORMING, ETC.) {3}
641  DF  COLLIMATING OF LIGHT BEAM
642  DF  LENS {32}
831  DF  PRISM (INCLUDING MOUNT) {3}
838  DF  MIRROR {14}
885  DF  ABSORPTION FILTER {7}
893  DF  SCREEN (E.G., HALFTONE SCREEN, ETC.)
894  DF  OPTICAL APERTURE OR TUBE, OR TRANSPARENT CLOSURE {1}
896  DF  MISCELLANEOUS
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CROSS-REFERENCE ART COLLECTIONS
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900  DF  METHODS
901  DF  ACOUSTIC HOLOGRAPHY
902  DF  HOLOGRAPHIC INTERFEROMETER
903  DF  WITH MAGNET
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