Patent ID: 8330899

Claim:
A photoflash comprising: a substrate serving as a bottom of a cavity formed there-above and having a plurality of circuits embedded in the bottom of the cavity; a flashtube received in the cavity, and electrically connected to the circuits of the substrate; and a light field control member comprising: a liquid crystal panel, a plurality of transparent electrodes and a control circuit; the electrodes being attached on opposite sides of the liquid crystal panel, each corresponding to a particular region of the liquid crystal panel and electrically connected to the control circuit that is attached on the liquid crystal panel where none of electrodes are attached; the liquid crystal panel being mounted on the substrate and covering the cavity; the control circuit being electrically connected to the circuits of the substrate; the control circuit being configured for selectively powering the transparent electrodes thereby adjusting the orientation of liquid crystal cells in the corresponding particular regions of liquid crystal panel to allow and control which portions of the light emitted from the flashtube pass through the light field control member and in what direction.