A light modulator developed by J.H. Jeffree in 1934 and known as the Jeffree cell, a cell filled with a transparent fluid which used mechanical oscillations to modulate the light beam passing through it.
Cell nucleus | Soft Cell | Cell biology | Cell | cell | cell (biology) | B-cell activating factor | Cell (journal) | Cell (biology) | T cell | cell membrane | Mesenchymal stem cell | Jeffree Star | Cell membrane | Hematopoietic stem cell transplantation | cell culture | Cell Biology | The Plant Cell | Solar cell | Photoreceptor cell | fuel cell | Cell (Dragon Ball) | X-Cell | White blood cell | Tom Clancy's Splinter Cell (video game) | The Cell | The Ancestor Cell | Stem cell controversy | Red Cell | Red blood cell |