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Publication of BE702500ApublicationCriticalpatent/BE702500A/fr
G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
G02B26/0816—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements
G02B26/0825—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements the reflecting element being a flexible sheet or membrane, e.g. for varying the focus