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IPC-Stelle: G02F 1/055 3-Punkt Untergruppe [Version 2006.01, Sprache EN - English]

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Symbol		Titel
A Hierarchieinformationen		SECTION A — HUMAN NECESSITIES
B Hierarchieinformationen		SECTION B — PERFORMING OPERATIONS; TRANSPORTING
C Hierarchieinformationen		SECTION C — CHEMISTRY; METALLURGY
D Hierarchieinformationen		SECTION D — TEXTILES; PAPER
E Hierarchieinformationen		SECTION E — FIXED CONSTRUCTIONS
F Hierarchieinformationen		SECTION F — MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
G Hierarchieinformationen		SECTION G — PHYSICS
G01 Hierarchieinformationen		INSTRUMENTS
G01 Hierarchieinformationen		MEASURING (counting G06M); TESTING
G02 Hierarchieinformationen		OPTICS (making optical elements or apparatus B24B, B29D 11/00, C03, or other appropriate subclasses or classes; materials per se, see the relevant places, e.g. C03B, C03C)
G02B Hierarchieinformationen		OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS (G02F takes precedence; optical elements specially adapted for use in lighting devices or systems thereof F21V 1/00-F21V 13/00; measuring-instruments, see the relevant subclass of class G01, e.g. optical rangefinders G01C; testing of optical elements, systems, or apparatus G01M 11/00; spectacles G02C; apparatus or arrangements for taking photographs or for projecting or viewing them G03B; sound lenses G10K 11/30; electron and ion "optics" H01J; X-ray "optics" H01J, H05G 1/00; optical elements structurally combined with electric discharge tubes H01J 5/16, H01J 29/89, H01J 37/22; microwave "optics" H01Q; combination of optical elements with television receivers H04N 5/72; optical systems or arrangements in colour television systems H04N 9/00; heating arrangements specially adapted for transparent or reflecting areas H05B 3/84) [1, 7]
G02C Hierarchieinformationen		SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES (trial frames for testing the eyes A61B 3/04; goggles or eyeshields not having the same features as spectacles A61F 9/00)
G02F Hierarchieinformationen		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, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS (optical transfer means between sensing member and indicating or recording part in connection with measuring G01D 5/26; devices in which mathematical operations are carried out with optical elements G06E 3/00; electrical signal transmission systems using optical means to convert the input signal G08C 19/36; information-recording by electric or magnetic means and reproducing by sensing optical properties G11B 11/00; static stores using optical elements G11C 13/04; transmission systems employing electromagnetic waves other than radio waves, e.g. light, infra-red radiation, H04B 10/00; optical multiplex systems H04J 14/00; pictorial communication, e.g. television H04N) [2, 4]
G02F 1/00 Hierarchieinformationen		Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics (thermometers using change of colour or translucency G01K 11/12, using changes in fluorescence G01K 11/32; light guide devices G02B 6/00; optical devices or arrangements using movable or deformable elements for controlling light independent of the light source G02B 26/00; control of light in general G05D 25/00; visible signalling systems G08B 5/00; indicating arrangements for variable information by selection or combination of individual elements G09F 9/00; control arrangements or circuits for visual indicators other than cathode-ray tubes G09G 3/00; control of light sources H01S 3/10, H05B 33/08, H05B 35/00-H05B 43/00) [2, 4]
G02F 1/01 Hierarchieinformationen		. for the control of the intensity, phase, polarisation or colour (G02F 1/29, G02F 1/35 take precedence; polarizing elements per seG02B 5/30; static storage per seG11C; image tube screens acting as light valves by shutter operation H01J 29/12; such screen acting by discoloration H01J 29/14) [2, 7]
G02F 1/015 Hierarchieinformationen		. . based on semiconductor elements with at least one potential jump barrier, e.g. PN, PIN junction (G02F 1/03 takes precedence) [3]
G02F 1/017 Hierarchieinformationen		. . . Structures with periodic or quasi periodic potential variation, e.g. superlattices, quantum wells [7]
G02F 1/025 Hierarchieinformationen		. . . in an optical waveguide structure (G02F 1/017 takes precedence) [5, 7]
G02F 1/03 Hierarchieinformationen		. . based on ceramics or electro-optical crystals, e.g. exhibiting Pockels or Kerr effect (G02F 1/061 takes precedence) [2, 4, 7]
G02F 1/035 Hierarchieinformationen		. . . in an optical waveguide structure [5]
G02F 1/05 Hierarchieinformationen		. . . with ferro-electric properties (G02F 1/035, G02F 1/055 take precedence) [2, 5]
G02F 1/055 Hierarchieinformationen		. . . the active material being a ceramic (G02F 1/035 takes precedence) [4, 5]
G02F 1/061 Hierarchieinformationen		. . based on electro-optical organic material (G02F 1/07 takes precedence) [7]
G02F 1/065 Hierarchieinformationen		. . . in an optical waveguide structure [7]
G02F 1/07 Hierarchieinformationen		. . based on electro-optical liquids exhibiting Kerr effect [2]
G02F 1/09 Hierarchieinformationen		. . based on magneto-optical elements, e.g. exhibiting Faraday effect [2]
G02F 1/095 Hierarchieinformationen		. . . in an optical waveguide structure [5]
G02F 1/11 Hierarchieinformationen		. . based on acousto-optical elements, e.g. using variable diffraction by sound or like mechanical waves (acousto-optical deflection G02F 1/33) [2]
G02F 1/125 Hierarchieinformationen		. . . in an optical waveguide structure [5]
G02F 1/13 Hierarchieinformationen		. . based on liquid crystals, e.g. single liquid crystal display cells (liquid crystal materials C09K 19/00) [2]
G02F 1/133 Hierarchieinformationen		. . . Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements (arrangements or circuits for control of liquid crystal elements in a matrix, not structurally associated with these elements G09G 3/36) [3, 7]
G02F 1/1333 Hierarchieinformationen		. . . . Constructional arrangements (G02F 1/135, G02F 1/136 take precedence) [5]
G02F 1/1334 Hierarchieinformationen		. . . . . based on polymer-dispersed liquid crystals, e.g. microencapsulated liquid crystals [7]
G02F 1/1335 Hierarchieinformationen		. . . . . Structural association of optical devices, e.g. polarisers, reflectors, with the cell [5]
G02F 1/13357 Hierarchieinformationen		. . . . . . Illuminating devices [7]
G02F 1/13363 Hierarchieinformationen		. . . . . . Birefringent elements, e.g. for optical compensation [7]
G02F 1/1337 Hierarchieinformationen		. . . . . Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers [5]
G02F 1/1339 Hierarchieinformationen		. . . . . Gaskets; Spacers; Sealing of the cell [5]
G02F 1/1341 Hierarchieinformationen		. . . . . Filling or closing of the cell [5]
G02F 1/1343 Hierarchieinformationen		. . . . . Electrodes [5]
G02F 1/1345 Hierarchieinformationen		. . . . . Conductors connecting electrodes to cell terminals [5]
G02F 1/1347 Hierarchieinformationen		. . . . . Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells [5]
G02F 1/135 Hierarchieinformationen		. . . . Liquid crystal cells structurally associated with a photoconducting or a ferro-electric layer, the properties of which can be optically or electrically varied [3]
G02F 1/136 Hierarchieinformationen		. . . . Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit (G02F 1/135 takes precedence) [5]
G02F 1/1362 Hierarchieinformationen		. . . . . Active matrix addressed cells [7]
G02F 1/1365 Hierarchieinformationen		. . . . . . in which the switching element is a two-electrode device [7]
G02F 1/1368 Hierarchieinformationen		. . . . . . in which the switching element is a three-electrode device [7]
G02F 1/137 Hierarchieinformationen		. . . characterised by a particular electro- or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction, dynamic scattering [3]
G02F 1/139 Hierarchieinformationen		. . . . based on orientation effects in which the liquid crystal remains transparent [6]
G02F 1/141 Hierarchieinformationen		. . . . . using ferroelectric liquid crystals [6]
G02F 1/15 Hierarchieinformationen		. . based on electrochromic elements [5]
G02F 1/153 Hierarchieinformationen		. . . Constructional arrangements [5]
G02F 1/155 Hierarchieinformationen		. . . . Electrodes [5]
G02F 1/157 Hierarchieinformationen		. . . . Structural association of optical devices, e.g. reflectors or illuminating devices, with the cell [5]
G02F 1/161 Hierarchieinformationen		. . . . Gaskets; Spacers; Sealing of the cell; Filling or closing of the cell [5]
G02F 1/163 Hierarchieinformationen		. . . Operation of electrochromic cells; Circuit arrangements [5]
G02F 1/167 Hierarchieinformationen		. . based on electrophoresis [5]
G02F 1/17 Hierarchieinformationen		. . based on variable absorption elements (G02F 1/015-G02F 1/167 take precedence) [2, 5]
G02F 1/19 Hierarchieinformationen		. . based on variable reflection or refraction elements (G02F 1/015-G02F 1/167 take precedence) [2, 5]
G02F 1/21 Hierarchieinformationen		. . by interference [2]
G02F 1/225 Hierarchieinformationen		. . . in an optical waveguide structure [5]
G02F 1/23 Hierarchieinformationen		. . for the control of the colour (G02F 1/03-G02F 1/21 take precedence) [2]
G02F 1/25 Hierarchieinformationen		. . . as to hue or predominant wavelength [2]
G02F 1/29 Hierarchieinformationen		. for the control of the position or the direction of light beams, i.e. deflection (static stores with electric or magnetic read-in and optical read-out G11C; lasers provided with means to change the location from which, or the direction in which, laser radiation is emitted H01S 3/101) [4]
G02F 1/295 Hierarchieinformationen		. . in an optical waveguide structure (G02F 1/313, G02F 1/335 take precedence) [5]
G02F 1/31 Hierarchieinformationen		. . Digital deflection devices (G02F 1/33 takes precedence) [2]
G02F 1/313 Hierarchieinformationen		. . . in an optical waveguide structure [5]
G02F 1/315 Hierarchieinformationen		. . . based on the use of controlled total internal reflection [3]
G02F 1/33 Hierarchieinformationen		. . Acousto-optical deflection devices [2]
G02F 1/335 Hierarchieinformationen		. . . having an optical waveguide structure [5]
G02F 1/35 Hierarchieinformationen		. Non-linear optics (optical bistable devices G02F 3/02; lasers using stimulated Brillouin or Raman effect H01S 3/30) [2, 5]
G02F 1/355 Hierarchieinformationen		. . characterised by the materials used [7]
G02F 1/361 Hierarchieinformationen		. . . Organic materials [7]
G02F 1/365 Hierarchieinformationen		. . in an optical waveguide structure (G02F 1/377 takes precedence) [7]
G02F 1/37 Hierarchieinformationen		. . for second-harmonic generation [2]
G02F 1/377 Hierarchieinformationen		. . . in an optical waveguide structure [7]
G02F 1/383 Hierarchieinformationen		. . . . of the optical fibre type [7]
G02F 1/39 Hierarchieinformationen		. . for parametric generation or amplification of light, infra-red, or ultra-violet waves (electrical parametric amplifiers H03F 7/00) [2]
G02F 2/00 Hierarchieinformationen		Demodulating light; Transferring the modulation of modulated light; Frequency-changing of light (G02F 1/35 takes precedence; photoelectric detecting or measuring devices G01J, H01J 40/00, H01L 31/00; demodulating laser arrangements H01S 3/10; demodulation or transference of modulation of modulated electromagnetic waves in general H03D 9/00) [2]
G02F 3/00 Hierarchieinformationen		Optical logic elements (electric-pulse generators using opto-electronic devices as active elements H03K 3/42; logic circuits using opto-electronic devices H03K 19/14); Optical bistable devices [5]
G02F 7/00 Hierarchieinformationen		Optical analogue/digital converters
G03 Hierarchieinformationen		PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY (reproduction of pictures or patterns by scanning and converting into electrical signals H04N) [4]
G04 Hierarchieinformationen		HOROLOGY
G05 Hierarchieinformationen		CONTROLLING; REGULATING
G06 Hierarchieinformationen		COMPUTING; CALCULATING; COUNTING (score computers for games A63B 71/06, A63D 15/20, A63F 1/18; combinations of writing implements with computing devices B43K 29/08)
G07 Hierarchieinformationen		CHECKING-DEVICES
G08 Hierarchieinformationen		SIGNALLING (indicating or display devices per seG09F; transmission of pictures H04N)
G09 Hierarchieinformationen		EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
G10 Hierarchieinformationen		MUSICAL INSTRUMENTS; ACOUSTICS
G11 Hierarchieinformationen		INFORMATION STORAGE
G12 Hierarchieinformationen		INSTRUMENT DETAILS
G21 Hierarchieinformationen		NUCLEONICS
G21 Hierarchieinformationen		NUCLEAR PHYSICS; NUCLEAR ENGINEERING
G99 Hierarchieinformationen		SUBJECT MATTER NOT OTHERWISE PROVIDED FOR IN THIS SECTION [2006.01]
H Hierarchieinformationen		SECTION H — ELECTRICITY

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