Descriptions for G02B and notes/indexes are displayed on this screen.
| G02B
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OPTICAL ELEMENTS, SYSTEMS OR APPARATUS[1,7]
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Note(s)
Attention is drawn to the Notes following the titles of class B81 and subclass B81B relating to "microstructural devices" and "microstructural systems"[7]This subclass does not cover:devices or arrangements, the optical operation of which is modified by changing the optical properties of the medium of the devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light, frequency-changing, non-linear optics, optical logic elements;optical analogue/digital converters$200B; which are covered by subclass G02F
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Subclass indexes
OPTICAL ELEMENTS | characterised by their structure: lenses; light guides; other elements | 3/00; 6/00; 5/00 | characterised by the material | 1/00 | OPTICAL SYSTEMS | General structure: number and arrangements of optical components | 9/00, 11/00 | Special structures: according to purpose; with variable magnification; with reflecting surfaces | 13/00; 15/00; 17/00 | Other systems | 27/00 | Optical systems or apparatus for producing three-dimensional [3D] effects | 30/00 | STRUCTURAL DETAILS OF ARRANGEMENTS COMPRISING LIGHT GUIDES AND OTHER OPTICAL ELEMENTS | 6/00 | OPTICAL APPARATUS | Condensers | 19/00 | Microscopes | 21/00 | Telescopes, periscopes, instruments for viewing the inside of hollow bodies, viewfinders, aiming or sighting devices | 23/00 | Eyepieces, magnifying glasses | 25/00 | Other apparatus | 27/00 | CONTROL OF LIGHT | 26/00 | MOUNTINGS, ADJUSTING MEANS, LIGHT-TIGHT CONNECTIONS | 7/00 |
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