(under subclass 523) Subject matter wherein the lamp or discharge device includes an optical element of the physical type integral therewith.
(1) Note. See the class definitions for an optical device not integral with a Class 313 device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
110+, for electric lamp or discharge with an integral optical device or special ray transmissive envelope.
371+, for a cathode-ray tube with an optical element.
SEE OR SEARCH CLASS
250, Radiant Energy, 216+, for optical or photocell systems.
348, Television,
195+, for mechanical optical scanning.
356, Optics: Measuring and Testing, particularly 73.1 for optical fiber testing,
124+, for a lens or reflective image former testing and subclasses 128+ for refraction testing.
359, Optics: Systems (Including Communication) and Elements,
350+, for optics having significant infrared or ultraviolet properties, subclasses 838+ for a reflector, subclasses 885+ for a filter, subclasses 642+ for a lens.
362, Illumination,
551, for a light source and modifier and subclasses 317+ for a light modifier.
378, X-Ray or Gamma Ray Systems or Devices,
140, for an X-ray discharge device having a special ray transmissive window.
385, Optical Waveguides, appropriate subclasses for a light transmitting fiber, waveguide or rod.
