Patents Assigned to Nijssen Light Division B.V.
  • Method and device for lighting seeds or plants
    Patent number: 4914858
    Abstract: A method for fostering the germination of plant seeds or the cultivation of plant cuttings wherein light-emitting diodes are positioned closely proximate the plant seeds or plant cuttings and energized so as to emit irradiating light on the plant seeds or plant cuttings of a wavelength between 400 and 800 nm. The light-emitting diodes can be energized with continuous or intermittent, high frequency energy.
    Type: Grant
    Filed: September 2, 1988
    Date of Patent: April 10, 1990
    Assignee: Nijssen Light Division B.V.
    Inventors: Cornelis T. M. Nijssen, Otto A. Kuhn, Willem Verbeek