CPC Main Group Additional Only
G02F 2413/00 Indexing scheme related to G02F1/13363, i.e. to birefringent elements, e.g. for optical compensation, characterised by the number, position, orientation or value of the compensation plates
13 direct subcodes
Child Classifications
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- G02F 2413/01 Number of plates being 1
- G02F 2413/02 Number of plates being 2
- G02F 2413/03 Number of plates being 3
- G02F 2413/04 Number of plates greater than or equal to 4
- G02F 2413/05 Single plate on one side of the LC cell
- G02F 2413/06 Two plates on one side of the LC cell
- G02F 2413/07 All plates on one side of the LC cell
- G02F 2413/08 with a particular optical axis orientation
- G02F 2413/10 with refractive index ellipsoid inclined, or tilted, relative to the LC-layer surface O plate
- G02F 2413/12 Biaxial compensators
- G02F 2413/13 Positive birefingence
- G02F 2413/14 Negative birefingence
- G02F 2413/15 with twisted orientation, e.g. comprising helically oriented LC-molecules or a plurality of twisted birefringent sublayers