Lines with other classes and within this classSUPPORTS OR MOUNTS FOR OPTICAL ELEMENTS AND SYSTEMS Included here (359) also are supports, mounts, and frames which are particularly adapted for use with optical elements. The nominal recitation of a mirror or filter in combination with such structure is generally not sufficient for classification here, if the mirror or filter is treated as a panel or lamina of general utility. Such panels with associated components, such as frames, edging, backing, etc., mechanically and permanently assembled thereto are provided for elsewhere. Supports for such panel type structures are classified elsewhere. (See References to the Current Class, below.) However, combinations of a detailed mirror with its support are classified in this class. In the case of other optical elements, such as prisms or lenses, the broad recitation of the element in combination with the support or mounting is sufficient for classification in this class. This Class (359) provides for lenses, prisms, and filters respectively with supports. (See Subclass References to the Current Class, below.) Stereo-viewer supports and mountings are provided for in this class. (See Subclass References to the Current Class, below.) NONVISIBLE RADIATION Included in this class are not only those elements which operate in the visible portion of the spectrum, but also those which operate in the near visible portion of the spectrum (i.e., infrared and ultraviolet) in accordance with optical principles. Systems which function in both the visible and near visible portions of the spectrum are classified here unless a specific structure is claimed as a result of the utilization of invisible ray energy. Systems whose operation is restricted to the nonvisible portion of the spectrum are classified elsewhere. (See References to Other Classes, below.) OPTICAL SYSTEM INCLUDING PHOTOCELL Generally, where a photocell is claimed as a part of the optical system, the subject matter is excluded from this class. Such subject matter is typically provided for with the art for radiant energy or measuring and testing. However, where a modulating signal is recovered from a modulated light wave (as in an optical communication receiver or in an optical demodulator), classification is in Class 359. (See References to Other Classes, below.) OPTICAL WAVEGUIDES Optical waveguiding elements, per se, are classified in elsewhere. Also, combinations of an optical waveguide with an associated mechanical connecting device or a device coupling light into or out of the optical waveguide are classified elsewhere. (See References to Other Classes, below.) OPTICAL MODULATION An optical modulator, in general, is classified in this class (359). However, optical modulation occuring solely within the confines of an optical waveguide is excluded from this class. Such subject matter is provided for in Class 385. OPTICAL AMPLIFICATION OR FREQUENCY CONVERSION A detailed optical amplifier/frequency converter, per se, or such subject matter in combination with an additional waveguide structure is classified in this class (359). However, the nominal recitation of any type of optical amplifier/frequency converter together with an additional waveguide structure is classified elsewhere where such combination meets the class requirements. MEASURING AND TESTING A claimed image forming optical system plus a reticle is classified in this class. Sighting instruments for determining geometrical relationships where no significant optical system is claimed are classified elsewhere. Measuring and testing systems which determine the optical characteristics of light so as to measure materials and provides for lens or reflective image former testing are classified elsewhere. Eye examining and testing instruments are classified elsewhere. (See References to Other Classes, below.) LASERS Lasers and similar devices, per se, are excluded from this class. See References to Other Classes for lasers and similar devices when they function as a generator of coherent electromagnetic waves in the optical range. OPTICAL TELEMETRY Optical telemetry includes the combination of an optical data link between multiple locations together with a specific sensor used in a particular environment. Since the overall combination specifies an environment or specific sensor, the environment or sensor will control the classification. The following are examples of proper art areas for optical telemetry: (1) Wellbore telemetry including any type of radiant energy; (i.e., optical, radio, etc.). (See References to Other Classes, below.) (2) An optical data link in combination with a specific sensor, unless there is a place for the specific sensor in another class. (See References to Other Classes, below.) COMPOSITIONS AND STOCK MATERIAL Where there is no shape or structure peculiar to optical elements as in compositions or stock material, the subject matter is excluded from this class. See References to Other Classes, below, for classes that provide for these compositions and stock material. OPTICAL ELEMENTS CLASSIFIED ELSEWHERE For Optical Elements Classified Elsewhere, see References to Other Classes, below. OPTICAL ELEMENTS COMBINED WITH DIVERSE TYPE ART DEVICES An optical element combined with a diverse type art device where the element results in an improvement or perfection of the device is generally classified with the device. See Subclass References to the Current Class, below, for a reference to details of this distinction with reference to lenses, and also for references to combinations of a reflector and diverse type art device. The combination of an optical element and an electric discharge device is provided for elsewhere. See Class Definition, section D, above. (See References to Other Classes, below.) For Classes that are more common external classifications of systems including or combined with optical elements, see References to Other Classes, below. METHODS OF MAKING OPTICAL ELEMENTS CLASSIFIED ELSEWHERE For Methods of Making Optical Elements Classified Elsewhere, see References to Other Classes, below. | 
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