US PATENT SUBCLASS 359 / 819
.~.~ Lens mounts

Current as of: June, 1999
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359 /   HD   OPTICS: SYSTEMS (INCLUDING COMMUNICATION) AND ELEMENTS

642  DF  LENS {32}
811  DF  .~ With support {6}
819.~.~ Lens mounts {6}
820  DF  .~.~.~> With temperature compensation or control
821  DF  .~.~.~> Plural lenses in common carrier selectively operable (e.g., turret type, etc.)
822  DF  .~.~.~> Adjustable {1}
827  DF  .~.~.~> Detachably attached (e.g., plate, barrel, etc.) {1}
829  DF  .~.~.~> With threads
830  DF  .~.~.~> With ring

DEFINITION

Classification: 359/819

Lens mounts:

(under subclass 811) Subject matter including structure engaging the rim portion around substantially the entire circumference or rim of the lens or its components to secure the lens to supporting structure or to secure the components in proper spaced relation without obstructing the optical axis.

(1) Note. More commonly the structure here classified is a ring gripping the periphery of the lens with a thread for screwing into a barrel or wall of some optical instrument, such as a telescope, microscope, or camera. A plurality of these rings gripping respective lens components together with the ring supporting structure to maintain the components in proper spaced relationship is classified here. The mount must engage the lens over substantially the entire rim. A mere screw or clamp engaging a portion of the lens rim is not classified here, but in subclass 811 above. The mere inclusion of the telescope, microscope, or camera barrel broadly in the claim does not preclude classification here.

(2) Note. Class 396, Photography, appropriate subclasses for a lens mounting in combination with significant camera structure. Examples of such significant terms are film track, film plane, film holder, camera casing, camera housing, camera body with recess, camera cone, camera chamber, shutter, etc. The mere recitation of a camera wall or mounting plate or focal plane is not sufficient to remove lens mounting structure from this subclass (819).

(3) Note. Class 362, Illumination, in subclasses 455+ provide for illuminating lens mounts. For classification there, significant illuminating structure would be claimed or

the indicated use of the mounted lens would be for illuminating purposes as opposed to the general optical use in this subclass (819). Class 353, Optics: Image Projectors, in subclasses 24, 96, and 100+ provide for lens mounts in projectors, and for classification where significant projector structure is recited such as slide holder, illuminating source, or projector housing.

SEE OR SEARCH THIS CLASS, SUBCLASS:

507+, for lens mounts with moisture or dust sealing.

892, for filter mountings. SEE OR SEARCH CLASS

285, Pipe Joints or Couplings,

405+, for flanged pipe joints.

352, Optics: Motion Pictures, appropriate subclasses for lens holders and supports together with motion picture structure as required by Class 352.

353, Optics: Image Projectors,

24, 96, and 100+ for a lens mount in an image projector. See (3) Note above.

362, Illumination,

455+, for illuminating lens holders and supports. See also (3) Note above.

396, Photography, appropriate subclasses for camera structure with lens mounting structure and see (2) Note above.