Method of producing plants, plant cultivating device, and light-emitting panel

2) A method for cultivating plants;

• by soaking roots of seedlings in a tray filled with culture solution;
• providing a funnel-shaped holder on the upper surface of the tray for holding the upper part of the plants;
• carrying the trays by conveyor device;
• and
• illuminating the plants by lighting device which is located over the conveyor device.

3) A plant cultivating device, comprising;

• a conveyor device to carry plants;
• and
• a lighting device located over the conveyor device;
• wherein the lighting device is disposed so as to be gradually apart from the conveyor device along with the upstream side to downstream side of the conveyor device.

4) A plant cultivating device, comprising;

• a tray to hold the stub of plants, in which the root of seedlings is soaked in filled culture solution;
• a conveyor device to carry the trays;
• a lighting device located over the conveyor device;
• and
• a funnel-shaped holder on the upper surface of the tray for holding the upper part of the plant.

5) A plant cultivating device, comprising;

• a tray to hold the stub of plants, in which the root of seedlings is soaked in filled culture solution;
• a conveyor device to carry the trays;
• a lighting device located over the conveyor device;
• an up and down conveyor for supply and retrieval respectively located apart from the each end of the conveyor device;
• a partitioning provided between these conveyors and the conveyor device;
• and
• a transfer bar for transferring trays between the conveyor device and the up and down conveyors, the said bar being movable in both ways along the extension line of the conveyor device;
• wherein the partitioning has a opening for enabling the transfer bar to go in and out along the extension line of the conveyor device.

9) A plant cultivating device, comprising;

• a tray to hold the stub of plants, in which the root of seedlings is soaked in filled culture solution;
• a conveyor device to carry the trays;
• a lighting device located over the conveyor device;
• wherein the culture solution being in its temperature of 10 to 20° C.;
• and the tray being made of aluminum or aluminum alloy.

10) A light-emitting panel, comprising;

• a base plate;
• a circuit board mounted on the base plate;
• a light-emitting unit provided with a number of lamps aligned and fixed on the circuit pattern of the circuit board;
• a translucent cover placed with a space adjacent to the base plate;
• a sealing material sandwiched between the base plate and the cover to keep the space airtight;
• and
• the lamps being fixed on the circuit board using a conductive adhesive.