US PATENT SUBCLASS 348 / 291
.~.~.~.~.~ Combined with grating, lens array, or refractor

Current as of: June, 1999
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207  DF  CAMERA, SYSTEM AND DETAIL {19}
266  DF  .~ With single image scanning device supplying plural color signals {4}
284  DF  .~.~ Cathode-ray tube {2}
289  DF  .~.~.~ Frequency separable signals {2}
290  DF  .~.~.~.~ Specified optical filter arrangement {2}
291.~.~.~.~.~ Combined with grating, lens array, or refractor

DEFINITION

Classification: 348/291

Combined with grating, lens array, or refractor:

(under subclass 290) Subject matter wherein the optical filter arrangement includes a diffraction grating, a single or a multiple element refractor.