IPC Subgroup
G02F 1/01 for the control of the intensity, phase, polarisation or colour
Introduced: July 1974
Last revised: January 2006
Full Title
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 > for the control of the intensity, phase, polarisation or colour
Classification Context
- Section:
- PHYSICS
- Class:
- OPTICS
- Subclass:
- OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
Related Keywords
modulation of COLOUR(S)modulation of INTENSITYmodulation of POLARISATION of light
14 direct subcodes
Child Classifications
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- G02F 1/015 based on semiconductor elements having potential barriers, e.g. having a PN or PIN junction
- G02F 1/03 based on ceramics or electro-optical crystals, e.g. exhibiting Pockels or Kerr effect
- G02F 1/061 based on electro-optical organic material
- G02F 1/07 based on electro-optical liquids exhibiting Kerr effect
- G02F 1/09 based on magneto-optical elements, e.g. exhibiting Faraday effect
- G02F 1/11 based on acousto-optical elements, e.g. using variable diffraction by sound or like mechanical waves
- G02F 1/13 based on liquid crystals, e.g. single liquid crystal display cells
- G02F 1/15 based on an electrochromic effect
- G02F 1/165 based on translational movement of particles in a fluid under the influence of an applied field
- G02F 1/169 based on orientable non-spherical particles having a common optical characteristic, e.g. suspended particles of reflective metal flakes
- G02F 1/17 based on variable-absorption elements not provided for in groups
- G02F 1/19 based on variable-reflection or variable-refraction elements not provided for in groups
- G02F 1/21 by interference
- G02F 1/23 for the control of the colour