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PCE
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CPC Subgroup
G02B 26/02

for controlling the intensity of light

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 intensity of light

3 direct subcodes

Child Classifications

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  • G02B 26/023
  • G02B 26/026
  • G02B 26/04 by periodically varying the intensity of light, e.g. using choppers (shutters, diaphragms for cameras G03B9/00; devices for eliminating or reducing the effect of flicker in projection systems G03B21/40)