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PCE
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CPC Subgroup
G02B 26/06

for controlling the phase of light (G02B26/08 takes precedence )

Full Title

Optical devices or arrangements for the control of light using movable or deformable optical elements (control of light by modification of the optical properties of the media of the elements involved therein G02F1/00) > for controlling the phase of light (G02B26/08 takes precedence )